Test 9
train validation test 划分
train validation test 划分
在机器学习和数据科学中，训练集（train）、验证集（validation）和测试集（test）的划分是非常重要的步骤。
这三种数据集在模型训练和评估中起着不同的作用。
1. 训练集（Train Set）：用于训练机器学习模型的数据集。
它包含了用于构建模型的特征和标签，通过训练集，我们可以训练出具有一定预测能力的模型。
通常，训练集占总数据集的70%到80%。
2. 验证集（Validation Set）：用于验证模型性能的数据集。
在模型训练过程中，我们需要不断地调整模型的参数和结构，以优化模型的性能。
验证集就是用来评估不同参数和结构下的模型性能，帮助我们选择最好的模型。
通常，验证集占总数据集的10%到20%。
3. 测试集（Test Set）：用于最终评估模型性能的数据集。
在模型训练和参数调整完成后，我们需要使用测试集来评估模型的最终性能。
测试集的评估结果可以为我们提供对模型泛化能力的参考，即模型对新数据的预测能力。
通常，测试集占总数据集的10%左右。
通过合理地划分训练集、验证集和测试集，我们可以更好地评估模型的性能，并选择出最优的模型进行实际应用。
同时，这种划分也有助于防止过拟合和欠拟合问题，提高模型的泛化能力。
c语言test函数用法
c语言test函数用法C语言中的test函数是一个非标准函数，它通常用于软件测试和调试。
test函数的作用是根据一个布尔表达式的真假情况输出一个字符串。
test函数的语法格式如下：void test(int expression, char* message);其中，expression是一个布尔表达式，message是一个字符串。
当expression为真时，test函数输出message；当expression 为假时，test函数不输出任何内容。
例如，下面的代码演示了test函数的用法：#include <stdio.h>void test(int expression, char* message);int main(){int a = 5;int b = 7;test(a > b, 'a is greater than b');test(a < b, 'a is less than b');return 0;}void test(int expression, char* message){if(expression){printf('%s', message);}}在上面的代码中，test函数被调用了两次。
第一次，由于a小于b，表达式a > b为假，test函数不输出任何内容；第二次，由于a大于b，表达式a < b为真，test函数输出字符串'a is less than b'。
值得注意的是，由于test函数不是标准函数，因此它在不同的编译器和平台上可能会有不同的实现方式和效果。
在实际开发中，应尽量避免使用非标准函数，以确保程序的可移植性和稳定性。
Test for Unit 9
Test for Unit 9(时间120分钟，满分120分)听力部分(20分)Ⅰ.听句子，选择最佳应答语。
(5分)()1.A.Sure，I'd love to.B．No，thanks.C．Yes，I do. ()2.A.I visited my friend. B．Sorry，I won't. C．I'm not sure. ()3.A.Sorry.Maybe another time.B．Yes，that's right. C．Where is it?()4.A.8 a．m. B．Tuesday the 2nd. C．In May.()5.A.He does. B．He will. C．He is.Ⅱ.听对话，选择最佳答案。
(5分)()6.When will David come back?A．Today. B．Tomorrow.C．The day after tomorrow.()7.Why can't Jack go to play basketball?A．He is tired. B．He is busy. C．He is lazy.()8.What didn't Jeff do yesterday?A．He didn't go to Linda's party.B．He didn't watch a movie.C．He didn't watch TV.()9.What did Alice do yesterday morning?A．She listened to music at home.B．She did her homework at school.C．She stayed with her friends.()10.What sport will they play this afternoon?A．Pingpong. B．Tennis. C．Soccer.Ⅲ.听长对话，选择正确答案。
可粘贴复制word版本的 剑桥雅思 9 Test
LISTENING SECTION 1 Questions 1-10Questions 1-5Complete the table below.Write ONE WORD AND/OR A NUMBER for each answer.Questions 6-10Complete the table below.Write ONE WORK AND/OR A NUMBER for each answer.SECTION 2 Questions 11-20Questions 11-13Choose the correct letter, A, B or C.Winridge Forest Railway Park11Simon’s idea for a theme park came fromA his childhood hobby.B his interest in landscape design.C his visit to another park.12 When they started, the family decided to open the park only whenA the weather was expected to be good.B the children weren’t at school.C there were fewer farming commitments.13 Since opening, the park has hadA 50,000 visitors.B 1,000,000 visitors.C 1,500,000 visitors.Questions 14-18What is currently the main area of work of each of the following people? Choose FIVE answers from the box and write the correct letter, A-H, next to questions 14-18.People14 Simon (the speaker) _______15 Liz _______16 Sarah _______17 Duncan _______18 Judith _______Questions 19 and 20Complete the table below.Write ONE WORK AND/OR NUMBERS for each answer.SECTION 3 Question 21-30Complete the notes below.Write NO MORE THAN TWO WORDS AND/OR A NUMBER for each answer.Study Skills Tutorial-Caroline Benning Dissertation topic: the 21______Strengths: ●22______● computer modelingWeaknesses: ● lack of background information● poor 23 ______ skillsRecommendations: ● use a card index● Read all notes 29 ______Next tutorial date: 30 ______ JanuarySECTION 4 Questions 31-40Questions 31 and 32Choose the correct letter, A, B or C.31 The owners of the underground houseA had no experience of living in a rural area.B were interested in environmental issues.C wanted a professional project manager.32 What does the speaker say about the site of the house?A The land was quite cheap.B Stone was being extracted nearby.C It was in a completely unspoilt area.Questions 33-40Complete the notes below.Write ONE WORD AND/OR A NUMBER for each answer.The Underground HouseDesignBuilt in the earth, with two floorsThe south-facing side was constructed of two layers of 33______ Photovoltaic tiles were attachedA layer of foam was used to improve the 34 ______ of the building Special featuresTo increase the light, the building has many internal mirrors and 35 ______In future, the house may produce more 36 ______ than it needsRecycled wood was used for the 37 ______ of the houseThe system for processing domestic 38 ______ is organic Environmental issuesThe use of large quantities of 39 ______ in construction wasenvironmentally harmfulBut the house will have paid its ‘environmental debt’ within 40 ______READINGREADING PASSAGE 1You should spend about 20 minutes on Questions 1-13, which are based on Reading Passage 1 below.Attitudes to languageIt is not easy to be systematic and objective about language study. Popular linguistic debate regularly deteriorates into invective and polemic. Language belongs to everyone, so most people feel they have a right to hold an opinion about it. And when opinions differ, emotions can run high. Arguments can start as easily over minor points of usage as over major policies of linguistic education.Language, moreover, is a very public behaviour, so it is easy for different usages to be noted and criticized. No part of society or social behaviour is exempt: linguistic factors influence how we judge personality, intelligence, social status, educational standards, job aptitude, and many other areas of identity and social survival. As a result, it is easy to hurt, and to be hurt, when language use is unfeelingly attacked.In its most general sense, prescriptivism is the view that one variety of language has an inherently higher value than others, and that this ought to be imposed on the whole of the speech community. The view is propounded especially in relation to grammar and vocabulary, and frequently with reference to pronunciation. The variety which is favoured, in this account, is usually a version of the ‘standard’ written language, especially as encountered in literature, or in the formal spoken language which most closely reflects this style. Adherents to this variety are said to speak or writ e ‘correctly’; deviations from it are said to be ‘incorrect’.All the main languages have been studied prescriptively, especially in the 18th century approach to the writing of grammars and dictionaries. The aims of these early grammarians were threefold: (a) they wanted to codify the principles of their languages, to show that there was a system beneath the apparent chaos of usage, (b) they wanted a means of settling disputes over usage, and (c) they wanted to point out what they felt to be common errors, in order to ‘improve’ the language. The authoritarian nature of theapproach is best characterized by its reliance on ‘rules’ of grammar. Some usages are ‘prescribed’, to be learnt and followed accurately; others are ‘proscribed’, to be avoided. In this ea rly period, there were no half-measures: usage was either right or wrong, and it was the task of the grammarian not simply to record alternatives, but to pronounce judgement upon them.These attitudes are still with us, and they motivate a widespread concern that linguistic standards should be maintained. Nevertheless, there is an alternative point of view that is concerned less with standards than with the facts of linguistic usage. This approach is summarized in the statement that it is the task of the grammarian to describe, not prescribe-to record the facts of linguistic diversity, and not to attempt the impossible tasks of evaluating language variation or halting language change. In the second half of the 18th century, we already find advocates of this view, such as Joseph Priestley, whose Rudiments of English Grammar (1761) insists that‘the custom of speaking is the original and only just standard of any language’. Linguistic issue, it is argued, cannot be solved by logic and legislation. And this view has become the tenet of the modern linguistic approach to grammatical analysis.In our own time, the opposition between ‘descriptivists’ and‘prescriptivists’ has often become extreme, with both sides painting unreal pictures of the other. Descriptive grammarians have been presented as people who do not care about standards, because of the way they see all forms of usage as equally valid. Prescriptive grammarians have been presented as blind adherents to a historical tradition. The opposition has even been presented in quasi-political terms — of radical liberalism vs elitist conservatism.Questions 1-8Do the following statements agree with the claims of the writer in Reading Passage 1?In boxes 1-8 on your answer sheet, writeYES if the statement agrees with the claims of the writer NO if the statement contradicts the claims of the writer NOT GIVEN if it is impossible to say what the writer thinks about this1 There are understandable reasons why arguments occur about language.2 People feel more strongly about language education than about smalldifferences in language usage.3Our assessment of a person’s intelligence is affected by the way he or she uses language.4 Prescriptive grammar books cost a lot of money to buy in the 18th century.5 Prescriptivism still exists today.6 According to descriptivists it is pointless to try to stop language change.7 Descriptivism only appeared after the 18th century.8 Both descriptivists and prescriptivists have been misrepresented. Questions 9-12Complete the summary using the list of words, A-I, below.Write the correct letter, A-I, in boxes 9-12 on your answer sheet.The language debateAccording to 9______, there is only one correct form of language. Linguists who take this approach to language place great importance on grammatical 10 ______.Conversely, the view of 11 ______, such as Joseph Priestly, is that grammar should be based on 12 ______.Question 13Choose the correct letter, A, B, C or D.Write the correct letter in box 13 on your answer sheet.What is the writer’s purpose in Reading Passage 1?A.to argue in favour of a particular approach to writing dictionaries andgrammar booksB.to present a historical account of differing views of languageC.to describe the differences between spoken and written languageD.to show how a certain view of language has been discreditedREADING PASSAGE 2You should spend about 20 minutes on Questions 14-26, which are based on Reading Passage 2 below.Tidal PowerUndersea turbines which produce electricity from the tides are set to become an important source of renewable energy for Britain. It is still too early to predict the extent of the impact they may have, but all the signs are that they will play a significant role in the futureA.Operating on the same principle as wind turbines, the power in seaturbines comes from tidal currents which turn blades similar to ships’ propellers, but, unlike wind, the tides are predictable and the power input is constant. The technology raises the PROSPECT of Britainbecoming self-sufficient in renewable energy and drastically reducing its carbon dioxide emissions. If tide, wind and wave power are alldeveloped, Britain would be able to close gas, coal and nuclear power plants and export renewable power to other parts of Europe. Unlike wind power, which Britain originally developed and then abandoned for 20years allowing the Dutch to make it a major industry, undersea turbines could become a big export earner to island nations such as Japan and New Zealand.B.Tidal sites have already been identified that will produce one sixth ormore of the UK’s power-and at prices competitive with modern gasturbines and undercutting those of the already ailing nuclear industry.One site alone, the Pentland Firth, between Orkney and mainlandScotland, could produce 10% of the country’s electricity with banks of turbines under the sea, and another at Alderney in the Channel Islandsthree times the 1,200 megawatts of Britain’s largest and new estnuclear plant, Sizewell B, in Suffolk. Other sites identified include the Bristol Channel and the west coast of Scotland, particularly the channel between Campbeltown and Northern Ireland.C.Work on designs for the new turbine blades and sites are will advanceat the University of Southampton’s sustainable energy research group.The first station is expected to be installed off Lynmouth in Devonshortly to test the technology in a venture jointly funded by thedepartment of Trade and Industry and the European Union. AbuBakr Bahaj, in charge of the Southampton research, said: ‘The prospects for energy from tidal currents are far better than from wind because the flows of water are predictable and constant. The technology for dealing with the hostile saline environment under the sea has been developed in theNorth Sea oil industry and much is already known about turbine blade design, because of wind power and ship propellers. There are a fewtechnical difficulties, but I believe in the next five to ten years we will be installing commercial marine turbine farms.’ Southampton has been awarded ￡215,000 over three years to develop the turbines and is working with Marine Current Turbines, a subsidiary of IT power, on the Lynmouth project. EU research has now identified 106 potential sites for tidal power, 80% round the coasts of Britain. The best sites are between islands or around heavily indented coasts where there arestrong tidal currents.D. A marine turbine blade needs to be only one third of the size of windgenerator to produce three times as much power. The blades will beabout 20 metres in diameter, so around 30 metres of water is required.Unlike wind power, there are unlikely to be environmental objections.Fish and other creatures are though unlikely to be at risk from therelatively slow-turning blades. Each turbine will be mounted on a tower which will connect to the national power supply grid via underwatercables. The towers will stick out of the water and be lit, to warnshipping, and also be designed to be lifted out of the water formaintenance and to clean seaweed from the blades.E.Dr Bahaj has done most work on the Alderney site, where there arepowerful currents. The single undersea turbine farm would produce far more power than needed for the Channel Islands and most would be fed into the French Grid and be re-imported into Britain via the cableunder the Channel.F.One technical difficulty is cavitation, where low pressure behind aturning blade causes air bubbles. These can cause vibration and damage the blades of the turbines. Dr Bahaj said: ‘We have to test a number of blade types to avoid this happening or at least make sure it does not damage the turbines or reduce performance. Another slight concern is submerged debris floating into the blades. So far we do not know how much of a problem it might be. We will have to make the turbines robust because the sea is a hostile environment, but all the signs that we can do it are good.’Questions 14-17Reading Passage 2 has six paragraphs, A-F.Which paragraph contains the following information?Write the correct letter, A-F, in boxes 14-17 on your answer sheet.NB You may use any letter more than once.14 the location of the first test site15 a way of bringing the power produced on one site back into Britain16 a reference to a previous attempt by Britain to find an alternativesource of energy17 mention of the possibility of applying technology from anotherindustryQuestions 18-22Choose FIVE letters, A-J.Write the correct letters in boxes 18-22 on your answer sheet.Which FIVE of the following claims about tidal power are made by the writer?Questions 23-26Label the diagram below.Choose NO MORE THAN TWO WORDS from the passage for each answer.Write your answers in boxes 23-26 on your answer sheet.An Undersea TurbineWhole tower can be raised for 23 ______ and the extraction of seaweed from the bladesSea life not in danger due to the fact that blades are comparatively 24______Air bubbles result from the 25 ______ behind blades. This is known as 26______READING PASSAGE 3You should spend about 20 minutes on Questions 27-40, which are based on Reading Passage 3 below.Information theory-the big ideaInformation theory lies at the heart of everything-from DVD players and the genetic code of DNA to the physics of the universe at its most fundamental. It has been central to the development of the science of communication, which enables data to be sent electronically and has therefore had a major impact on our livesA.In April 2002 an event took place which demonstrated one of the manyapplications of information theory. The space probe, Voyager I,Launched in 1997, had sent back spectacular images of Jupiter andSaturn and then soared out of the Solar System on a one-way mission to the stars. After 25 years of exposure to the freezing temperatures of deep space, the probe was beginning to show its age. Sensors andcircuits were on the brink of failing and NASA expers realized thatthey had to do something or lose contact with their probe forever. The solution was to get a message to Voyager I to instruct it to use spares to change the failing parts. With the probe 12 billion kilometers from Earth, this was not an easy task. By means of a radio dish belonging to NASA’s Deep Space Network, the message was sent out into the depths of space. Even travelling at the speed of light, it took over 11 hours to reach its target, far beyond the orbit of Pluto. Yet, incredibly, the little probe managed to hear the faint call from its home planet, and successfully made the switchover.B.It was the longest-distance repair job in history, and a triumph forthe NASA engineers. But it also highlighted the astonishing power of the techniqu4es developed by American communications engineer Claude Shannon, who had died just a year earlier. Born in 1916 in Petoskey, Michigan, Shannon showed an early talent for maths and for buildinggadgets, and made breakthroughs in the foundations of computertechnology when still a student. While at Bell Laboratories, Shannon developed information theory, but shunned the resulting acclaim. In the 1940s, he single-handedly created an entire science of communication which has since inveigled its way into a host of applications, fromDVDs to satellite communications to bar codes-any area, in short, where data has to be conveyed rapidly yet accurately.C.This all seems light years away from the down-to-earth uses Shannonoriginally had for his work, which began when he was a 22-year-oldgraduate engineering student at the prestigious Massachusetts Institute of Technology in 1939. He set out with an apparently simple aim: to pin down the precise mean ing of the concept of ‘information’. The mostbasic form of information, Shannon argued, is whether something is true of false —which can be captured in the binary unit, or ‘bit’, ofthe form 1 or 0. Having identified this fundamental unit, Shannon set about defining otherwise vague ideas about information and how totransmit it from place to place. In the process he discovered something surprising: it is always possible to guarantee information will getthrough random interference —‘noise’— intact.D.Noise usually means unwanted sounds which interfere with genuineinformation. Information theory generalizes this idea via theorems that capture the effects of noise with mathematical precision. In particular, Shannon showed that noise sets a limit on the rate at which information can pass along communication channels while remaining error-free. This rate depends on the relative strengths of the signal and noisetravelling down the communication channel, and on its capacity (its‘bandwidth’). The resulting limi t, given in units of bits per second, is the absolute maximum rate of error-free communication given singal strength and noise leve. The trick, Shannon showed, is to find ways of packaging up —‘coding’— information to cope with the ravages ofnoise, while staying within the information-carrying capacity —‘bandwidth’— of the communication system being used.E.Over the years scientists have devised many such coding methods, andthey have proved crucial in many technological feat. The Voyagerspacecraft transmitted data using codes which added one extra bit forevery single bit of information; the result was an error rate of just one bit in 10,000-and stunningly clear pictures of the planets. Other codes have become part of everyday life-such as the Universal Product Code, or bar code, which uses a simple error-detecting system thatensures supermarket check-out lasers can read the price even on, say, a crumpled bag of crisps. As recently as 1993, engineers made a majorbreakthrough by discovering so-called turbo codes-which come very close to Shannon’s ultimate limit for the maximum rate that data can betransmitted reliable, and now play a key role in the mobile videophone revolution.F.Shannon also laid the foundations of more efficient ways of storinginformati on, by stripping out superfluous (‘redundant’) bits fromdata which contributed little real information. As mobile phone text messages like ‘I CN C U’ show, it is often possible to leave out a lot of data without losing much meaning. As with error correcting,however, there’s a limit beyond which messages become too ambiguous.Shannon showed how to calculate this limit, opening the way to thedesign of compression methods that cram maximum information into the minimum space.Questions 27-32Reading Passage 3 has six paragraphs, A-F.Which paragraph contains the following information?Write the correct letter, A-F, in boxes 27-32 on your answer sheet.27 an explanation of the factors affecting the transmission of information28 an example of how unnecessary information can be omitted29 a reference to Shannon’s attitude to fame30 details of a machine capable of interpreting incomplete information31 a detailed account of an incident involving information theory32 a reference to what Shannon initially intended to achieve in his researchQuestions 33-37Complete the notes below.Choose NO MORE THAN TWO WORDS form the passage for each answer.Write your answers in boxes 33-37 on your answer sheet.The Voyager 1 Space ProbeThe probe transmitted pictures of both 33______ and ______, then left the 34 ______.The freezing temperatures were found to have a negative effect on parts of the space probe.Scientists feared that both the 35 ______ and ______ were about to stop working.The only hope was to tell the probe to replace them with 36 ______ —but distance made communication with the probe difficult.A 37 ______ was used to transmit the message at the speed of light.The message was picked up by the probe and the switchover took place. Questions 38-40Do the following statements agree with the information given in Reading PassGE 3?In boxes 38-40 on your answer sheet, writeTRUE if the statement agrees with the informationFALSE if the statement contradicts the informationNOT GIVEN if there is no information on this38 The concept of describing something as true or false was thestarting point for Shannon in his attempts to send message overdistances.39 The amount of information that can be sent in a given time period isdetermined with reference to the signal strength and noise level.40 Products have now been developed which can convey more informationthan Shannon had anticipated as possible.WRITINGWRITING TASK1You should spend about 20 minutes on this task.Write at least 150 words.WRITING TASK2You should spend about 40 minutes on this task.Write about the following topic:Some people say that the best way to improve public health is by increasing the number of sports facilities. Others, however, say that this would have little effect on public health and that other measures are requires.Discuss both these views and give your own opinion.Give reasons for you answer and include any relevant examples from your own knowledge or experience.Write at least 250 words.SPEAKINGPART 1The examiner asks the candidate about him/herself, his/her home, work or studies and other familiar topics.EXAMPLETelephoningHow often do you make telephone calls? [Why/Why not?]Who do you spend most time talking to on the telephone?[Why?]When do you think you’ll next make a telephone call?[Why?]Do you sometimes prefer to send a text message instead of telephoning?[Why/Why not?]PART 2Describe a journey [. by car, plane, boat] that you remember well.You should say:where you wenthow you travelledwhy you went on the journeyand explain why you remember this journey well.topic for one to two minutes.You have one minute to think about what you are going to say.You can make some notes to help you if you wish.PART 3Discussion topics:Reasons for daily travelExample questions:Why do people need to travel every day?What problems can people have when they are on their daily journey, for example to work or school? Why is this?Some people say that daily journeys like these will not be so common in the future. Do you agree or disagree? Why?Benefits of international travelExample questions:What do you think people can learn from travelling to other countries? Why? Can travel make a positive difference to the economy of a country? How?Do you think a society can benefit if its members have experience of travelling to other countries? In what ways?。
CET4 模拟测试题9 Model Test9
Model Test N i n ePart I Writing (30minutes)Directions: For this part, you are allowed 30 minutes to write an essay. Suppose you have two ways to learn about other countries: one is to travel abroad and the other to obtain the information online. You are to make a choice. Write an essay to explain the reasons for your choice. You should write at least120 words but no more than 180 words.Part II Listening Comprehension (25 minutes)Section AQuestions 1 and 2 are based on the news report you have just heard.1.A) Because the storm had cut power to them.B)Because the roads to them had been flooded.C)Because there might be mud slides.D)Because there might be tsunami.2.A) It is expected to last until Saturday afternoon.B)It has caused over 300 traffic deaths.C)It is the strongest one in years.D)It will be at its strongest on Saturday afternoon.Questions 3 and 4 are based on the news report you have just heard.3.A) A car crash. B) A bushfire. C) A burglary. D) A terrorist attack.4.A) More than 15 homes had moved our.B)More than 50 homes had joined the fight.C)They had not had the fire under control yet.D)They had found a way to put out the fire.Questions 5 to 7 are based on the news report you have just heard.5.A) They are useful in terms of security but have rusted.B)They are useful in terms of security but not beautiful.C)They are no longer strong enough to protect the tower.D)They are no longer needed as a photo spot.6.A) It is the most visited monument in the world.B)It is totally free of charge for visiting.C)The entry to the forecourt of the tower is free.D)The entry to the forecourt of the tower will be charged.7.A) Less visitor entrances. C) Ornamental lights.B)More security guards. D) Better elevators.Section BQuestions 8 to 11 are based on the conversation you have just heard.8.A) He played tennis for his high school team.B)He played football for his high school team.C)He played tennis starting from his junior year.D)He played tennis starting from his senior year.9.A) Tennis. B) Basketball. C) Golf. D) Volleyball.10.A) Because he has a lot in common with the woman.B)Because he thinks the woman is a good player.C)Because his team lacks girl players.D)Because his team can learn a lot from the woman.11.A) Join the man to watch a match. B) Visit a new stadium with the man.C) Watch the man play in a match. D) Join the man to play in a match. Questions 12 to 15 are based on the conversation you have just heard.12.A) An interview between a customer and a shopping a ssistant.B)An interview between an airport staff and a passenger.C)A conversation between two working staff about the airport’s future improvement.D)A conversation between an air-hostess and a passenger about the inflight meal service.13.A) Because many people want to stay in shape.B)Because he wants to take every chance to improve his health.C)Because many people are tired after long flights.D)Because massaging will be a good way to kill time.14.A) Seasonal ones. B) Fresh ones. C) Local ones. D) Juicy ones.15.A) Disappointing. B) Satisfying. C) Outdated. D) Lovely.Section CQuestions 16 to 18 are based on the passage you have just heard.16.A) Because the planets are the same size as Earth.B)Because the planets are similar in many aspects to Earth.C)Because the planets are capable of supporting life.D)Because the planets have water on their surface.17.A) They are rocky planets . B) They are gaseous like Jupiter.C) They are covered by water. D) They are covered by sea ice.18.A) Because it has the right temperature and enough greenhouse gases.B)Because it has the right amount of water and enough greenhouse gases.C)Because it has the right atmosphere and enough greenhouse gases.D)Because it has the right gravity and enough greenhouse gases.Questions 19 to 21 are based on the passage you have just heard.19.A) They should be widely used in the field of social services.B)They should be blamed for the increasing unemployment.C)They should be taxed the same amount as the people they replace.D)They should be taxed more than the ordinary people.20.A) They will surely face massive unemployment.B)They will need less income tax to spend.C)They will have less income tax to spend.D)They will have no need to cope with the changes.21.A) Psychologists. C) Room cleaners.B) Police officers. D) Doctors.Questions 22 to 25 are based on the passage you have just heard.22.A) People who sleep late are smarter and more creative.B)People who sleep late are always late for their jobs.C)People who sleep late are easily irritated.D)People who sleep hate are slow and ineffective in their jobs.23.A) You will feel exhausted all day long. B) You can’t justify your lateness.C) You will be late for your work. D) You can’t find persuasive excuses.I) flexibility J) identical K) informed L) likely M) mistake N) selectively O) shapingA) betterB) competitivelyC) contraryD) curiosityE) evidenceF) explainedG) facilityH) fact24. A) Because they can fully enjoy themselves late at night.B) Because they can fully concentrate their attention late at night.C) Because they can read the most fascinating book late at night.D) Because they can make rapid progress in mentality late at night.25. A) Group intelligence tests. C) Deductive reasoning tests.B) Emotional intelligence tests. D) Inductive reasoning tests.Part Ⅲ Reading Comprehension ( 40 minutes )Section AQuestions 26 to 35 are based on the following passage.Ask a left-wing Briton what they believe about the safety of nuclear power, and you can guess their answer. Ask a right-wing American about the risks posed by climate change, and you can also make a 26 guess than if you didn’t know their politic al affiliation. Issues like these feel like they should be 27 by science, not our political tribes, but sadly, that’s not what happens.Psychology has long shown that education and intelligence won’t stop your politics from 28 your broader worldview, even if those beliefs do not match the hard evidence. Instead ,your ability to weigh up the facts may depend on a less well-recognised trait- 29 .There is now a mountain of 30 to show that politics doesn’t just help predict people’s views on some scientific issues; it also affects how they interpret new information. This is why it is a 31 to think that you can somehow “ correct” people’s views on an issue by giving th em more facts, since study after study has shown that people have a tendency to 32 reject facts that don’t fit with their existing views.But smarter people shouldn’t be susceptible to prejudice swaying their opinions, right? Wrong. Other research shows that people with the most education, highest mathematical abilities, and the strongest tendencies to be reflective about their beliefs are the most 33 to resist information which should contradict their prejudices . This undermines the simplistic assumption that prejudices are the result of too much gut instinct and not enough deep thought. Rather, people who have the 34 for deeper thought about an issue can use those cognitive powers to justify what they already believe and find reasons to dismiss apparently_ 35 evidence.Section BHow to Fix the Internet[A] We have to fix the internet. After 40 years, it has begun to corrode, both itself and us . It is still a marvelous and miraculous invention, but now there are bugs in the foundation, bats in the belfry, and trolls in the basement.[B] I do not mean this to be one of those technophobic rants insulting the interne for rewiring our brains to give us the nervous attention span of Donald Trump on Twitter or pontificating about how we have to log off and smell the flowers. Those worries about new technologies have existed ever since Plato was concerned that the technology of writing would threaten memorization and oratory (演讲术) .I love the interne and all of its digital offshoots. What I feel sad for is its decline.[C]There is a bug in its original design that at first seemed like a feature but has gradually, and now rapidly, been exploited by hackers and trolls and malevolent actors: Its packets are encoded with the address of their destination but not of their authentic origin. With a circuit-switched network, you can track or trace back the origins of the information, but that’s not true with the packet-switched design of the internet.[D]Compounding this was the architecture that Tim Berners-Lee and the inventors of the early browsers created for the World Wide Web. It brilliantly allowed the whole of the earth’s computers to be webbed together and navigated through hyperlinks. But the links were one-way. You knew where the links took you . But if you had a webpage or pi ece of content, you didn’t exactly know who was linking to you or coming to use your content.[E]All of that protected the potential for anonymity. You could make comments anonymously. Go to a webpage anonymously. Consume content anonymously. With a little effort, send email anonymously . And if you figured out a way to get into someone’s servers or databases, you could do it anonymously.[F]For years, the benefits of anonymity on the net outweighed its drawbacks. People felt more free to express themselves, which was especially valuable if they were holding different opinions or hiding a personal secret. This was celebrated in the famous 1993 New Yorker cart oon, “On the Internet, nobody knows you’re a dog.”[G]Now the problem is nobody can tell if you’re a troll. Or a hacker . Or a bot .Or a Macedonian (马其顿的) teenager publishing a story that the Pope has supported Trump . This has poisoned civil discourse, enabled hacking, permitted cyberbullying , and made email a risk.[H]The lack of secure identification and authentication ( 身份认证) inherent in the internet’s genetic code had also prevented easy transactions, obstructed financial inclusion, destroyed the business models of content creators, unleashed the overflow of spam ( 垃圾邮件) ，and forced us to use passwords and two-factor authentication schemes that would have confused Houdini. The trillions being spent and the IQ points of computer science talent being allocated to tackle security issues make it a drag, rather that a spur, to productivity in some sectors.[I]It Pla to’s Republic, we learn the tale of the Ring of Gyges. Put it on , and you’re invisible and anonymous. The question that Plato asks is whether those who put on the ring will be civil and moral. He thinks not, The internet has proven him correct. The web is no longer a place of community, no longer a marketplace. Every day more sites are eliminating comments sections.[J]If we could start from scratch, here’s what I think we would do：Greate a system that enables content producers to negotiate with aggregators ( 整合者) and search engines to get a royalty whenever their content is used, like ASCAP has negotiated for public performances and radio airings of its members’ works. Embed (嵌入) a simple digital wallet and currency for quick and easy small payments for songs, blogs, articles , and whatever other digital content is for sale. Encode emails with an authenticated return or originating address. Enforce critical properties and security at the lowest levels of the system possible, such as in the hardware or in the programming language, instead of leaving it to programmers to incorporate security into every line of code they write. Build chips and machines that update the notion of an internet packet. For those who want, their packets could be encoded or tagged with metadata ( 元数据) that describe what they contain and give the rules for how it can be used.[K]M ost internet engineers think that these reforms are possible, from Vint Cerf, the original TCP/IP coauthor, to Milo Medin of Google, to Howard Shrobe, the director of cybersecurity at MIT. “We don’t need to live in cyber hell,”Shrobe has argued. Implementing them is less a matter of technology than of cost and social will .Some people, understandably, will resist any reduction of anonymity, which they sometimes label privacy.[L]S o the best approach, I think, would be to try to create a voluntary system, for those who want to use it, to have verified identification and authentication. People would not be forced to use such a system. If they wanted to communicate and surf anonymously, they could. But those of us who choose, at times, not to be anonymous and not to deal with people who are anonymous should have that right as well. That’s the way it works in the real world.[M]T he benefits would be many. Easy and secure ways to deal with your finances and medical records. Small payment systems that could reward valued content rather than the current incentive to concentrate on clickbait for advertising. Less hacking, spamming, cyberbullying, trolling, and spewing of anonymous hate . And the possibility of a more civil discourse.36.The one-way hyperlinks enable users to do many things online anonymously.37.Although anonymity can make people conceal their identity online, now it has poisoned their online life.38.To adopt the voluntary system would be advantageous to our online life in a number of aspects.39.There are several ways to reduce anonymity if we can rebuild the internet from the very beginning.40.The author suggested inventing a system to let people go online anonymously or not as they wish.41.The author thinks the internet should be fixed not because he is afraid of new technologies but becauseproblems arise in it.42.Pubic opposition could become one of the biggest obstacles to carrying out the reforms.43.The hazard of anonymity mentioned by Plato has been shown on the internet.44.People used to think that anonymity online did more good than harm.45.It is the design of the internet that makes it impossible to find out where the information comes from. Section CPassage OneQuestions 46 to 50 are based on the following passage.In today’s world, online social media has become more powerful and the most destructive thing over worldwide. Although with time all generations have come to embrace the changes social network has brought about, teenagers and young adults are the most fanatic users of these sites. According to various research studies in the field of online social networks, it has been revealed that these sites are impacting the lives of the youth greatly. When using these sites such as Twitter, Facebook or Myspace, there are both positive and negative effects on the youth.Firstly, social media helps the youth and any other user updated with what is happening around the world, and helps the teenagers stay connected and interact with each other even if they are many miles apart. This strengthens their relationship. Even if they finished school and moved to different locations, they stay connected and update one another.In addition, social media sites have provided a platform whereby the youth can create groups and pages based on their common discipline and end up building connections and opportunities for their respective careers by updating various topics to discuss. Youth who have been interviewed say that social media has become their lifestyle and it makes their lives easier and more efficient.While on the one hand social network sites seem to bring people together and stay connected, on the other hand it causes many physical and mental health problems such as eyes infection, back problems, etc. Other negative effects of social networking various people suggested included encouraging poor spelling and grammar, exposing underage to online predators ( 捕食者) , allowing spread of misinformation that is seen as fact, decreasing productivity as those who are supposed to e working spend time in the sites to chat, providing a perfect platform for cyberbullying and providing details that increase risks of identity theft.“The more social media we have, the more we think we’re connecting, yet we are really disconnecting from each other.”In conclusion, social networking clearly portrays both positive and negative effects on the youth. It is the decision of individuals whether to use it in a right way or wrong.46.According to the first paragraph, .A)both online and offline social media have developed quicklyB)social medial sites are always being attackedC)the effects of social medial were welcomed in the beginningD)the most crazy fans of social medial are the youth47.What is young people’s purpose in adopting the platform offered by social media sites?A. To improve their academic performance.B)To lay the foundation for their future careers.C)To practice their debate skills.D)To change their way of living.48.What does the author mainly imply about the disadvantages of social networking?A)Increasing the prevalence of oral errors. B) Putting minors in danger.C) Spreading falsehoods and rumors. D) Leaki ng users’ personal information.49.The author’s attitude towards social media is .A)objective B) positive C) negative D) impassive50.What’s the main topic of this passage?A)The introduction of online social media history.B)The research on online social media.C)The influence of online social media on the youth.D)The correct way to use online social media.Passage TwoQuestions 51 to 55 are based on the following passage.Cutting toxic levels of city air pollution to safer levels is simple, but not easy-it requires resolve. Yet, despite the key culprit (罪犯) in the UK being well known-diesel (柴油机的) vehicles-the government has been asleep at the wheel for years.Levels of nitrogen dioxide (二氧化氮) have been illegally high across much of the UK since 2010. In 2015 86% of major urban areas broke annual limits. Cutting this pollution means choking off diesel emissions and there is a wide range of effective measures available.Creating zones in city centres where polluting care are either banned or charged is important, while making cities safe for cycling cuts traffic too.Cleaner buses and taxis have an important role to play and change to the perverse taxes that encourage people to buy diesel over cleaner cars is needed. There is also some support for a revival of a scrappage scheme which saw dirty old bangers taken off the road.The environment and transport departments were well aware of all this and proposed many of these measures internally, only for the Treasury to reject most of them, arguing they “ would be political ly very difficult, especially given the impacts on motorists.”Motorists happen to be particularly badly exposed to air pollution, but the real political difficulty for the government is two humiliating legal defeats in two years where judges ruled its air pollution plans were so bad they were illegal.Ministers have now been forced to come up with a third plan, but clean air zones and car tax changes take time to clean up the air. Yet the UK government is also in the slow lane when it comes to emergency measures.When foul air descended on Paris in December, officials there swung into action. Public transport was made free and the number of cars allowed on roads was restricted, alternately barring those with odd and even licence plates. In the UK, during the same December smog, the government sent a few tweets.At the root of the problem are diesel cars, which successive governments across Europe have utterly failed to ensure meet legal emissions limits when driving in real-world conditions on the road. The gaming of regulatory tests by carmakers was blown open by the Volkswagen scandal. The scandal of governments prioritising supposed driver freedom over the lungs and health of their citizens is only now playing out.51.What does the author think of fixing air pollution in the first paragraph？A)It is a piece of cake. B) It needs political will.C) It is the main problem. D) It has a lone way to go.52.The aim of those in favor of a scrappage scheme is .A)to reduce diesel emissions B) to encourage the use of old carsC) to retire low-end old vehicles D) to cut own on traffic accidents53.It can be inferred from the passage that the Treasury .A)was quite clear about the current situation of air pollutionB)opposed almost every proposal about reducing air pollutionC)believed the anti-pollution measures to be unaffordableD)made such objections partly due to the effects on drivers54.Why do the UK ministers have to put forward a third air pollution plan?A)Because drivers are suffering the most from sir pollution.B)Because the first two plans were found illegal by the judges.C)Because long-term solutions are ignored by the government.D)Because emergency measures are falling behind.55.Which of the following measures did the French government take when smog suddenly arrived in December?A)Establishing clean air zones. C) Limiting vehicles based on license plate number.B)Reforming car taxes. D) Posting several announcements on Twitter.Part ⅣTranslation (30 minutes)西汉时期，中国的船队就达到了印度和斯里兰卡（Sri Lanka）,用中国的丝绸换取了琉璃（colored glaze）、珍珠等物品。
2020年7月27日练习题4、5、6、7、8、9、12
2020年7⽉27⽇练习题4、5、6、7、8、9、12 /*4、随机⽣成⼀个100以内的整数，猜数字游戏从键盘输⼊数，如果⼤了提⽰，⼤了，如果⼩了，提⽰⼩了，如果对了，就不再猜了，并统计⼀共猜了多少次*/class Test09_Exer4{public static void main(String[] args){//随机⽣成⼀个100以内的整数,[0,100)/*Math.random() -->[0,1)的⼩数Math.random()*100 -->[0,100)的⼩数[0,100)的整数 (int)(Math.random()*100 )*/int randNum = (int)(Math.random()*100);// System.out.println(randNum);//从键盘输⼊数，如果⼤了提⽰，⼤了，如果⼩了，提⽰⼩了，如果对了，就不再猜了，java.util.Scanner input = new java.util.Scanner(System.in);int num;//挪到do{}上⾯，提升作⽤域int count = 0;//统计次数do{System.out.print("猜数（范围[0,100)：");num = input.nextInt();count++;//输⼊⼀次，就代表猜⼀次if(num > randNum){System.out.println("⼤了");}else if(num<randNum){System.out.println("⼩了");}}while(num!=randNum);//条件成⽴，重复执⾏循环体语句System.out.println("⼀共猜了：" + count + "次");}}/*循环嵌套：5、输出所有的⽔仙花数，所谓⽔仙花数是指⼀个3位数，其各个位上数字⽴⽅和等于其本⾝。
hku aptitude test 题目汇总
Hku Aptitude Test 题目汇总第一部分：数学能力1. 求解方程1.1 求解一元一次方程组1.2 求解二元二次方程1.3 求解含绝对值的方程2. 几何题2.1 计算三角形的面积2.2 计算圆的周长和面积2.3 计算多边形的内角和外角之和3. 数据分析3.1 理解均值、中位数和众数的概念3.2 解析数据分布的正态分布和偏态分布第二部分：语文能力1. 词汇运用1.1 填空题：根据语境填入正确的词语 1.2 选择题：选择同义词或反义词2. 阅读理解2.1 阅读短文并回答问题2.2 分析文章主旨和作者意图3. 写作能力3.1 选择题：选择合适的词语填入句子3.2 作文题：写一篇关于环保的文章第三部分：思维能力1. 逻辑推理1.1 推理填空：根据条件进行推理并填写空白处1.2 排列组合：计算排列或组合的个数2. 比喻与类比2.1 选择题：根据比喻或类比的关系选择正确的答案 2.2 填空题：根据给定的比喻或类比填写空白处3. 情境分析3.1 阅读情境描述并回答问题3.2 分析情境中的人物关系和冲突第四部分：实践能力1. 实验设计1.1 根据题目要求设计小学科学实验1.2 完善实验步骤和材料准备2. 技能操作2.1 图像处理：使用图片编辑软件对图片进行简单处理2.2 文字排版：使用文字编辑软件进行排版操作3. 项目管理3.1 根据给定需求制定项目计划3.2 管理团队完成项目任务结语Hku Aptitude Test 包含了数学能力、语文能力、思维能力和实践能力四个方面的内容。
通过这些题目的考察，可以全面了解考生的学习能力和综合素质。
希望广大考生能够认真准备，取得满意的成绩。
在Hku Aptitude Test的数学能力考核部分中，数学题目不仅涉及基本的数学运算和几何知识，还包括了数据分析和解题能力。
通过求解方程、几何题和数据分析题目的考核，可以全面评估考生的数学素养和解题能力。
1. 求解方程1.1 求解一元一次方程组在求解一元一次方程组的题目中，考生需要通过列方程组、消元、求解变量的值等步骤来解答问题，考验了考生的代数运算能力和解方程的技巧。
中考英语阅读分层训练~Test 9
提升等级 - TEST 9（2）一、完形填空（共10小题；共15分）When personal trainer James O'Driscoll arrives at his gym each morning, he doesn't just to help others lose weight or build muscles. There is something 1 ."I have been working with a man for several years who said that 2 really helped build up his confidence." James understands the importance of developing 3 better than most. At 26, he suddenly lost his sight, which made him unable to work and his life was 4 .James' life 5 when a guide dog came into his life. "We built up trust and respect for each other. The dog helped me return to work and a 6 life."James started as an actor which later required him to get back in shape."I felt that if I could 7 my life through exercise I could help others do the same," he says.Through great 8 , James became the UK's first blind personal trainer four years ago. " 9 , it is not about how heavy you are. Someone says they played football without feeling out of breath 10 they put a dress on for the first time in six years. That is what really matters. It's how you feel inside."1. A. harder B. happierC. more importantD. more interesting2. A. dancing B. training C. talking D. singing3. A. sight B. health C. confidence D. strength4. A. inspired B. expected C. forgotten D. destroyed5. A. changed B. continued C. accepted D. completed6. A. exciting B. social C. busy D. lucky7. A. find out B. build up C. smile at D. turn around8. A. pleasure B. energy C. efforts D. decisions9. A. Finally B. Luckily C. Pleasantly D. Shortly10. A. if B. but C. or D. so二、阅读理解（共20小题；共40分）A11. The play begins at .A. 7:00 p.m.B. 9:00 a.m.C. 7:00 a.m.D. 9:00 p.m.12. The seat number in the passage is .A. 9, Row 6B. 6, Row 9cC. 10, Row 6D. 7, Row 913. If you are late for play, you'd better .A. walk aroundB. call up your friendsC. rush to your seatD. enter the theater quietly14. You should at the theater.A. use cameras and videosB. sell your ticketC. talk with your friends loudlyD. check your seat number15. The underlined word "refund" means " ".A. 入场B. 出场C. 退票D. 购票BPrana was a beautiful dog, whose name means “breath of life”. Although he died several years ago, I can still remember the days we spent together and what he has taught me about love.I have two apple trees in the garden. Prana loved apples. When he went outside, he'd catch an apple and take it into the house to eat later. The apples had been on the ground and were often dirty so I wasn't always happy that Prana had brought them into the house.It was an autumn day in America, but it was very cold. A big snow fell and we had not done anything for its coming. On that special day, Prana went outside and I watched him through the window. I noticed that he was madly digging(挖) holes and bringing the apples to the ground so they could be seen above the snow. I did not know why he was doing this. He seemed to want to do something special.When I called him back, he had his usual one apple in his mouth. About five minutes later, I looked outside. The garden was completely covered with birds. Prana had dug up all those apples for his bird friends to eat. He knew that they wouldn't have stored enough food for the coming winter!16. Prana was .A. the writerB. a boyC. a birdD. a dog17. I wasn't always happy because .A. Prana loved applesB. Prana caught an apple and ate itC. the apples fell on the ground and were dirtyD. Prana brought the dirty apples into the house18. On the snowy day, Prana .A. ate up all the applesB. dug holes to put the apples in themC. brought the apples under the snow to the groundD. left the house and died19. The birds flew to the garden to .A. look for PranaB. eat the applesC. make new homesD. store food for the winter20. The topic of the story is about .A. applesB. animalsC. loveD. lifeCThis is a song millions of Americans will hear this New Year's Eve. It is called Auld Lang Syne (《友谊地久天长》). It is the traditional music played during the New Year's celebration. Auld Lang Syne is an old Scottish poem. It tells about the need to remember old friends.The words "auld lang syne" mean "old long since". No one knows who wrote the poem first. However, a version by Scottish poet Robert Bums was published(出版) in 1796. The words and music we know today first appeared in a songbook three years later.The song is played in the United States mainly on New Year's Eve. The version(译文) you are hearing today is by the Washington Saxophone Quartet. As we end our program with Auld Lang Syne.I would like to wish all our radio friends a very Happy New Year! This is Buddy Thomas.21. This passage is from .A. a newspaperB. a magazineC. a TV programD. a radio program22. is introducing Auld Lang Syne to us.A. Robert BumsB. The Washington Saxophone QuartetC. Buddy ThomasD. The passage doesn't tell us23. From the passage, we know that the song Auld Lang Syne mainly played in the USA .A. On New Year's EveB. On Christmas EveC. On weekendsD. On holidays24. The words and music of Auld Lang Syne we know today first appeared .A. In 1790B. In 1793C. In 1796D. In 179925. The song Auld Lang Syne is about .A. the history of ScotlandB. an old Scottish poetC. the need to remember old friendsD. the wishes to the radio friendsD"When can I get a cell phone?" The answer is when your parents think you need one, though many kids seem to be getting them around age 12 or 13. Some younger kids may have them because their parents see it as a matter of safety and convenience. For example, a kid can call Mom and Dad when sports practice is over. A cell phone can give kids almost instant access (快捷通道) to their parents if something goes wrong or they need help. It can give parents quick access to their kids so they can check on them and make sure they're OK.If you do get a cell phone, make some rules with your parents, such as how many minutes you're allowed to spend on the phone, when you can use your phone, when the phone must be turned off, and what you will do if someone calls you too often, and so on.You'll also have to learn to take care of the phone in your life. Keep it charged(充电) and store it in the safe place so it doesn't get lost. And whatever you do, don't use it in the bathroom. I know someone who dropped his phone in the toilet!26. Parents buy cell phones for their kids when .A. they think it is necessaryB. they think their kids are old enoughC. they have asked the writer for adviceD. they want to follow their kids wherever they are27. The writer of the passage .A. wants to describe how children use cell phonesB. knows nothing about when children can have a cell phoneC. may have done a survey on kids using cell phonesD. has been a teacher for many years28. Which of the following is TRUE according to the passage?A. It is too young for kids of 12 or 13 to get a cell phone.B. The writer thinks a cell phone is useful for kids and their parents.C. The writer is against the idea of kids having cell phones.D. Most kids are considering having cell phones.29. Who does write the passage?A. Parents who have bought phones for their kids.B. Someone who does cell phone business.C. A teacher who cares most about school safety.D. Someone who works for children's education.30. Which might NOT be a rule for kids with a cell phone?A. Keep it on all the time.B. Make a call if something goes wrong.C. Don't use it in the bathroom.D. Take care not to lose it.三、阅读与表达(问答式)（共4小题；共8分）Wild animals are important to us. They live together with us on the earth. If there are no animals on the earth, we will not live on, either. So we should take good care of them to help the earth live a healthy life.But some people still don't realize the importance of protecting them. They kill wild animals for food and other things. Every day there are many wild animals being killed. So lots of wild animals have died out. We can't see them anymore. Today the number of wild animals is becoming less and less. If people don't protect them, they will all die out. If this goes on, there will be no animals left on the earth.Luckily many people have begun to realize the importance of protecting wild animals. They ask others to stop killing wild animals. They teach others about the importance of protecting wild animals. Now many countries have made some laws(法律) to protect wild animals and to stop people from killing them.Protecting wild animals is the duty of each of us. We should do our best to protect them because protecting them is protecting ourselves, too.31. Why is the number of wild animals becoming less and less today?32. What does the underlined phrase "die out" mean in Chinese?33. Why have many countries made some laws?34. What do you think we should do to protect wild animals?答案一、完形填空1. C2. B3. C 4 (暂无答案) 5. A6. B7. D8. C9. A 10. C二、阅读理解11 (暂无答案) 12. B 13. D 14. D 15. C16. D 17. D 18. C 19. B 20. C21. D 22. C 23. A 24. D 25. C26. A 27. C 28. B 29. D 30. A三、阅读与表达(问答式)31. Because there are many wild animals being killed every day.32. 灭绝。
剑桥雅思9Test4口语Part2范文：Describe a person who has done a lot of work to help people
剑9Test4口语Part2范文：Describe a person who has done a lot of work to help people。
烤鸭你怎么解决这一雅思话题。
part1,请点击：剑桥雅思9Test4口语Part1范文（Bicycles）话题雅思口语名师点题人物一直是雅思口语高频话题。
这里小编总结了近期的关于人物的高频话题，雅思口语Part2作文:Describe the member of your family who is successfulDescribe two people who are from the same family. (New)Describe a famous person that you are interested in . (New)Describe a polite person you know . (New)Describe a family member that you feel proud of . (New)以上是2017年上半年的高频话题，接下来，我们将介绍本篇话题！Describe a person who has done a lot of work to help people.雅思口语范文：It is undeniable that so many kinds of languages and dialectsexit in the multi-cultural world, which causes some complex andembarrassed situations while communicating with peopleholding different languages. Some predict that if somelesser-known languages vanish, we may enjoy a much easierlingual atmosphere. Personally I think it is entirely wrong.Admittedly, to eliminate some languages that have beenused in some certain parts of the world will make people'scommunication easier. Namely, English and other internationallanguages will bridge over the lingual barriers to some extent.However, if a language disappears, the culture behind it will notexist then shortly. Besides, the living habits and traditions relyingon those language features will also die out with the loss of alanguage itself.When it comes to the reasons for my disagreement, twoaspects should be listed: for one thing, as mentioned above,language is no more than a way of communication. It is morelikely to be a better symbol on special occasions, like somefamous directors will thank all his helpers in English on stagewhen he is awarded by Oscar, but he will definitely thank his homeland in his native language at last, which represents anational pride vividly. For another, if it is possible to remove some lesser-known languages, some substitution will be used asEnglish and French recently. However, the problem is the translation is not so perfect to transfer each cultural meaningand indication from a native surrounding to a western lingualway. The missing translation will lead to theloss of culturaldiversity subconsciously.In sum, some lesser-known languages should not be widelyused for the globalization, but the preservation of those cultural-valued legacies should never stop until the extinction ofthe human beings.。
初中英语7年级星级阅读训练 Test 9
Test 9AComplete the following passage with the words or phrases in the box. Each word can only be used once (将下列单词或词组填入空格。
每空格限填一词，每词只能填一次)：Water is the "life blood" of our earth. It is in every living thing. It is in the air. It runs through mountains and valleys. It 1 lakes and oceans. Water is everywhere.Nature has a great water system. Rainwater finds its way to streams and rivers. Rivers 2 to the oceans. At the mouths of the rivers, fresh water joins the salt water of the 3 .Here at the mouth of a river there is much important plant and animal life. Pollution destroys this life, so we have to clean our streams and rivers. Man has to work with nature-not4 it.The lion is called the king of beasts. Lions are found living wild in the grasslands of Africa. They hunt smaller animals and 5 them. There are no wild lions in Europe, but there are captive（被俘虏的）lions in European 6 .The male lion is a beautiful animal. Round his head he has a ring of 7 hair called a mane(鬃毛). When the lion is young, the hair of his name is yellow. When he is old, the hair is 8 black. The female lion, or lioness, does not have a mame.Lions are dangerous animals. A lion can kill a man.BChoose the best answer (根据短文内容，选择最恰当的答案):Sunday, October 16 Fine Today was one of the best days of my life, as I did a skydive for the first time.I was really nervous when I got onto the plane and it began to fly higher into the sky. All my family and friends were waiting in a field down below. To stop myself from feeling afraid, I had to keep telling myself why I was doing it.I decided two weeks ago to take part in this skydive for charity because I wanted to raise money to build a library at my local school. I asked everyone I knew to sponsor（赞助）me. People were very generous. Since then I have spent hours every day learning the skills. It was not long before the day arrived and I was walking onto the plane. It seemed hours had gone by as we started on the runway and took off into the clouds, but it can only have been a few minutes. The teacher checked everything for us one last time before opening the door. The cold wind rushed in, and I felt my heart beat faster. Finally, it was my turn to jump. The teacher then put his hand on my back and pushed me out of the plane!Suddenly, I was falling through the sky. I was probably around three kilometers above the ground and going at a high speed. The plane disappeared in a few seconds, and I was completely alone, with the ground getting closer and closer all the time. It may seem a strange thing to say, but I felt as if I were a bird and quickly forgot all my worries and fears.After around 30 seconds, I pulled the cord（绳索）of the parachute on my back. I felt it pull me upwards as it opened, and then I began to float downwards to the ground below. Soon I landed in a field where my families were waiting.I found it exciting to fall through the sky, but I was also very happy to have both my feet back on the ground again.1.This article is a(n)A) letterB) diaryC) advertisementD) speech2. The weather today isA) cloudyB) rainyC) snowyD) sunny3. The writer has learnt skydiving forA) 2 weeksB) 2 daysC) several hoursD) many years4. The underlined part“doing it”in paragraph 2 refers toA) getting onto the planeB) doing the skydivingC) getting so afraidD) talking to myself5. The writer opened theA) as soon as she left the planeB) a few minutes after she left the planeC) thirty seconds after she left the planeD) thirty minutes after she left the plane6. The money the writer has raised will be used forA) sending some children to school.B) setting up a skydiving club in her school.C) building a library at her local school.D) building a new school in her neighborhood.CChoose the words or expressions and complete the passage (选择最恰当的单词或词语完成短文):There was a blind girl who hated herself because she was blind. In fact, she 1 nobodyexcept her boyfriend, for he was always ready to help her. She used to tell her boyfriend, "If I could see the world, I would marry you."One day, someone donated (捐赠) a pair of 2 to her. When the bandages (绷带) came off, she was able to see everything, including her boyfriend, for the first time. He asked her, "Now that you can see the world, will you marry me?" The girl looked at her boyfriend and was greatly surprised to see that he was 3 . She had never expected that. She would not like to be with a blind husband for the rest of her life, so she refuse to marry him.Her boyfriend left in tears and a few days later wrote a 4 to her, saying, "My dear, take good care of your eyes. Before they are yours. They were mine."This is how the human brain often works when our status (地位) changes. Only a very few remember what 5 was like before. And we often ask for more than we need. Life is a gift. Today, before you complain about the taste of your food, think of someone who has nothing to eat. Before you complain about life, think of someone who went to heaven (天堂) too early. Before you complain about your old house , think of the people who are living in the streets. And when you are tired and complain about your job, think of those who have no jobs. So 6 what you have and don't forget your past.1. A. forget B. loved C. disliked D. thanked2. A. shoes B. glasses C. trousers D. eyes3. A. ugly B. sick C. short D. blind4. A. diary B. note C. song D. story5. A. mind B. work C. school D. life6. A. forget B. spend C. enjoy D. payDRead the passage and fill in the blanks with suitable words (在短文的空格内填入适当的词，使其内容通顺。
JIS K5600-7-9-2006 Testing methods for paints-Part 7：Determination of resistance to cyclic corrosio
K 5600-7-9 200612 1 (JPMA) (JSA)ISO 11997-1:1998 Paints and varnishes Determination of resistance to cyclic corrosion conditions Part 1 : Wet (Salt fog) /dry/humidityJIS K 5600-7-9ABC AD BE C1 D2 JISJIS K 5600JIS K5600-7-1 7 1JIS K5600-7-2 7 2JIS K5600-7-3 7 3JIS K5600-7-4 7 4JIS K5600-7-5 7 5JIS K5600-7-6 7 6JIS K5600-7-7 7 7JIS K5600-7-8 7 8JIS K5600-7-9 7 9K 5600-7-9 2006 (1)1. (1)2. (1)3. (3)4. (3)4.1 (3)4.2 pH (3)4.3 (3)5. (3)5.1 (3)5.2 (3)5.3 (4)5.4 (4)5.5 (4)5.6 (4)5.7 (4)6. (4)7. (4)7.1 (4)7.2 (4)7.3 (5)7.4 (5)7.5 (5)8. (5)8.1 (5)8.2 (5)9. (6)10. (6)11. (6)12. (6)13. (6)A (8)B (9)C A (10)D B (11)2K 5600-7-9 2006JIS K 0557ISO 3696:1987 Water for analytical laboratory use Specification and test methodsJIS K 5500JIS K 5600-1-2 1 2ISO 15528:2000 Paints varnishes and raw materials for paints and varnishes SamplingJIS K 5600-1-3 1 3ISO 1513:1992 Paints and varnishes Examination and preparation of samples for testingJIS K 5600-1-4 1 4ISO 1514:1993 Paints and varnishes Standard panels for testingJIS K 5600-1-6 1 6ISO 3270:1984 Paints and varnishes and their raw materials Temperatures and humidities for conditioning and testing JIS K 5600-1-7 1 7ISO 2808:1997 Paints and varnishes Determination of film thicknessJIS K 5600-8-1 8 1ISO 4628-1:1982 Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity quantity and size of common types of defect Part 1: General principles and ratingschemesJIS K 5600-8-2 8 2ISO 4628-2:1982 Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity quantity and size of common types of defect Part 2: Designation of degree of blisteringJIS K 5600-8-3 8 3ISO 4628-3:1982 Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity quantity and size of common types of defect Part 3: Designation of degree of rustingJIS K 5600-8-4 8 4ISO 4628-4:1982 Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity quantity and size of common types of defect Part 4: Designation of degree of crackingJIS K 5600-8-5 8 5ISO 4628-5:1982 Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity quantity and size of common types of defect Part 5: Designation of degree of flakingJIS K 81503K 5600-7-9 2006JIS K 8180JIS K 8576JIS K 8622JIS K 89603. JIS K 55004.4.1 C A D B E C 1 D JIS K 0557 A1 JIS K 8150 (1) E C JIS K 8960(1) 11 g/kg5.01.00.010.014.2 pH pH C E 1 pH 25 0.3 pH pH pH JIS K 8180 JIS K 8622 JIS K 8576pH pH4.35.5.1 0.4 m35.5 C E 1B2 m34K 5600-7-9 20065.2C E 1 100 mm5.3 C E 15.4A D C 1B C 455.5 2100 mm80 cm25.65.7 C E 16. JIS K 5600-1-2 JIS K 5600-1-37.7.1 JIS K 5600-1-4 JIS G 3141 100 70 0.3 mm150 70 0.8 mm5K 5600-7-9 20067.2 JIS K 5600-1-47.3 16 JIS K 5600-1-67.4 JIS K 5600-1-7 µm7.5 10.5 1.0 mm3a) 10 mmb)c)b) c)20 mmmm18.8.1 20 56K 5600-7-9 20068.29.a) 245.5 80 cm2 C E 1C E 1b) C E 1c)10. 2a) 9.b) 5.1 8.c)11.a) 24 30b)JIS K 5600-8-1 -5c) JIS K 5600-1-6d) A 2. g)12. JIS K 5600-8-1 -57K 5600-7-9 200613.a)b) JIS K 5600-7-9c)d) Ae)f)g)h)i)j)k)l)8K 5600-7-9 2006A1. 13.2.a) 7.1 7.2b) 7.2c) 7.3d) µm JIS K 5600-1-77.4e)7.5f) 11.9K 5600-7-9 2006 B1. C E 12. 5.53.4. 5.110K 5600-7-9 2006C A1. A2.2.1 50 10 g/l 4. pH 6.0 7.02.2C 1 Ah1 2 35 12 4 60 1 20 30 RH3 2 50 1 95 RH4 1 1 3 83015302.3 24 9. a)1 2 ml/h2.4 30 (240 ) 60 480 90 720 180 1 44011K 5600-7-9 2006D B1. B2.2.1 50 10 g/l 4. pH 6.0 7.02.2D 1 Bh1 24 35 228 40 2 100RH3 16 23 2 50 20 RH48 40 2 100RH5 16 23 2 50 20 RH68 40 2 100RH7 16 23 2 50 20 RH88 40 2 100RH9 16 23 2 50 20 RH10 48 23 2 50 20 RH11 1 1 10 72.3 24 9. a)1 2 ml/h2.4 84012K 5600-7-9 2006E C1. C2.2.1 0.31 0.01 g/l 4.1 0.01 g/l 4. pH 6.0 7.02.2E 1 Cmin1210 25 2 30 22210 40 2 5.43 1470 40 2 75 15 RH4102 25 2 30 2 5.45210 25 2 30 26378 30 2 95100 RH7180 35 2 5.48120 25 29 1 1 8 482.3 24 9. a) 2 4 ml/h2.4 1 00013K 5600-7-9 20061 D1. D2.2.1 50 10 g/l 4. pH 6.0 7.02.21 1 Dh1 0.5 30 22 1.5 30 2 953 RH3 2 50 24 2 30 25 1 1 4 61015302.3 24 9. a)1 2 ml/h2.4 28 16814K 5600-7-9 20062 JISJIS K 5600-7-9 2005 7 9 ISO 11997-1 1998 1 ( )( ) JIS ( ) ( ) JIS( )( ) JIS1.ISO 11997-1 1 JIS IDT2. JIS G 3141JIS K 0557JIS K 5500JIS K 5600-1-2JIS K 5600-1-3JIS K 5600-1-4JIS K 5600-1-6JIS K 5600-1-7JIS K 5600-8-1JIS K 5600-8-2JIS K 5600-8-3JIS K 5600-8-4JIS K 5600-8-52ISO 3696ISO 4618-1ISO 1512ISO 1513ISO 1514ISO 3270ISO 2808ISO 4628-1ISO 4628-2ISO 4628-3ISO 4628-4ISO 4628-5MOD/IDTMOD/MODIDTIDTIDTIDTIDTIDTIDTIDTIDTJISISO 1512ISO免费标准下载网() 无需注册,即可下载15K 5600-7-9 2006( ) JIS ( ) ( ) JIS( )( ) JIS2. JIS K 8150JIS K 8180JIS K 8576JIS K 8622JIS K 89602 MOD/ JIS JIS3. JIS K 5500ISO 4618-1ISO 4618-2ISO 4618-3MOD/ JIS K 5500JIS K 5500 ISO 46184.5MOD/ JIS K8150ISO5.6IDTJIS K 5600-1-3 ISO 1513IDT JIS ISO15528 JIS K5600-1-27.8MOD/ JISJIS免费标准下载网() 无需注册,即可下载16K 5600-7-9 2006( ) JIS ( )( ) ( ) JIS( ) JIS8.9 JIS IDT9.10 JIS IDT10.11 JIS IDT11. JIS K 5600-1-6JIS K 5600-8-1JIS K 5600-8-2JIS K 5600-8-3JIS K 5600-8-4JIS K 5600-8-512 ISO 3270ISO 4628-1ISO 4628-2ISO 4628-3ISO 4628-4ISO 4628-5IDT12.13 JIS IDT13.14 JIS MOD/ JISISOAAnnex A JIS IDTBAnnex B JIS IDT免费标准下载网() 无需注册,即可下载17K 5600-7-9 2006( ) JIS ( ) ( ) JIS( )( ) JISC AAnnex CAAMOD/ pH JISDISD BAnnex DJIS MOD/ pH JISDISE CAnnex EJIS MOD/ pH JISDIS1 DMOD/ JISISO DISJIS MOD1.IDTMOD/MOD/2. JISMOD免费标准下载网() 无需注册,即可下载。
美国密歇根9级英语考试(Michigan English Test Level 9)介绍
美国密歇根9级英语考试（Michigan English Test Level 9）介绍一、美国密歇根9级英语考试（Michigan English Test Level 9）是什么？美国密歇根9级英语考试（Michigan English Test Level 9）（以下简称密9考试）是一个考察通用英语，多级别的标准化语言考试；是为母语为非英语学生赴美国或加拿大等英语国家学习考取语言资格而设计的标准化语言考试；该考试也是联合国开发项目和世界卫生组织等国际组织为在中国选拔出国留学人员及对其颁发奖学金的英语水平考试。
目前世界上共有120多个国家承办该项英语水平考试。
在美国、加拿大等国至少有300多所优质大学（州立大学或同类及以上学校）都承认Michigan English Test Level 9考试成绩作为本科、研究生入学的英语成绩，是除托福（TOEFL）、雅思之外另一个为美国多所大学承认的英语语言资格考试。
在美国，尤其是在加拿大有些院校甚至专门需要密Michigan English Test Level 9考试成绩。
Michigan English Test Level 9评估应试者的听力、阅读、语法以及在个人、公共，职业以及教育场合下的口语技能。
听力和阅读所选取的材料，均源自于北美地区真实的生活场景，专为初中以上青少年及成人评估自己在各种场合下通用英语水平而设计。
二、美国密歇根9级英语考试（Michigan English Test Level 9）的优势是什么？1、密9考试与托福考试认证具有同等效力，但其难度仅相当于中国大学英语四、六级水平，更适合中国大陆大多数考生的英语水平，因此而成为中国大陆越来越多考生的优先选择。
2、密9考试分为多项选择（含听力、词汇、语法和阅读）、写作以及口语三部分。
任何两部分的分数达到80分以上，另外一部分70分以上即视为通过。
3、与该考试配套，由美国本土专家编制的培训课程在致力于提高考生的英语应用能力的同时，也为参加培训的考生提供高达80%以上的通过率保证。
普通话水平测试等级标准（StandardforPutonghuaProficiencyTest）
普通话水平测试等级标准（Standard for Putonghua ProficiencyTest）Grade standardThe standard for Putonghua Proficiency Test issued by the state language and Language Working Committee is the national unified standard for the classification of Putonghua proficiency. Mandarin level is divided into three levels: six, one or two, three, each level to distinguish the two grades A and B; a grade three class is the highest, the lowest. The Putonghua level of the examinee is determined according to the scores obtained in the test.The standard of Putonghua proficiency test is as follows:Class AWhen reading aloud and talking freely, the pronunciation standard, vocabulary and grammar are correct, the intonation is natural and the expression is fluent. Test the total loss rate is less than 3%.B read and talk freely, standard pronunciation, vocabulary, grammar correct, natural intonation, fluency. Occasionally, the tone pronunciation mistakes. Test the total loss rate is less than 8%.second levelA read and talk freely, basic standard, phonetic pronunciationintonation natural, fluent. A few difficult (flat cacuminal, before and after nasal twang, nasal etc.) sometimes mistakes. Vocabulary and grammar are few and far between. Test the total loss rate is less than 13%.B read and talk freely when the individual value does not have phenomenon of vowel sound pronunciation. The sound more difficult (flat cacuminal, before and after nasal twang, nasal, Fu - Hu, Z - Zh, -j, i-, aspirated and unaspirated voiced stops, u don't keep and voiced affricates, vowel and compound vowel tone lost etc.), more mistakes. The Dialectal Intonation is not obvious, and the use of dialect words and dialect grammar. Test the total loss rate is less than 20%.ThreeA read and talk freely, consonant and vowel pronunciation mistakes are more difficult than the common range, the tone is not much. Dialectal Intonation is obvious. Errors in vocabulary and grammar. Test the total loss rate is less than 30%.B read and talk freely, phonetic pronunciation errors, dialect features prominent. Dialectal Intonation is obvious. Vocabulary and grammatical mistakes are more. Outsiders listen to their conversation, there is no understanding of the situation. Test the total loss rate is less than 40%.Relevant regulationsAccording to the provisions of various industries, the standard of Putonghua required by the employees is as follows:Schools and school educational institutions teachers, apply for teacher personnel, college graduates, public service personnel specific post Putonghua is not less than two, which is not less than two grade language teachers, teachers of other subjects shall not be less than two class, high school teachers, civil servants Putonghua level not less than three grade, the modern Chinese teachers is not less than two grade, not less than the level of Putonghua teachers.National and provincial radio and television announcer, presenter, Putonghua level should reach a radio and television announcer, presenter of the mandarin standard according to the requirements of the State Administration of radio, film and television executive.Drama, film, television, radio and other performances, dubbing actors, broadcast, presided over professional and film and television performance of professional teachers and students, Putonghua level is not less than one level.The upper limit of the age limit for Putonghua shall be subject to the documents of the relevant trades.Outline of InvestigationThe outline of the Putonghua Proficiency Test (PSC) was promulgated by the national language and Language Working Committee, which is a national unified program for Putonghua Proficiency testing. The Putonghua proficiency test papers come from the syllabus.Test level division1.97 points and above, for class A2.92 or more but less than 97 points, for a class B3.87 points and above, but less than 92 points, for the first class two4.80 or more but less than 87 points, two class5.70 points and above, but less than 80 points, for the first class three6.60 or more but less than 70 points, three classExamination paper introductionThe Mandarin proficiency test paper consists of four test items, with a total score of 100.(1) read monosyllabic words 100 times, 3 minutes and 50 seconds, accounting for 10 points. Objective to examine the pronunciation of initial consonants, finals and tones of examinees.(2) read disyllabic words 50, 2 minutes and 50 seconds, accounting for 20 points. The purpose is to examine the examination of voice, rhyme and tone pronunciation, but also to examine, retroflexion and soft tone sandhi pronunciation.(3) 400 word short reading, limited time 4 minutes, accounting for 30 points. The purpose is to examine the ability of candidates to use Mandarin reading written material, and focuses on pronunciation, phonetic changes and intonation.(4) speaking time, 3 minutes, accounting for 40 points. The purpose is to examine the degree to which an examinee speaks Mandarin in the absence of words.Scoring standardMonosyllabic wordExclude "tone, syllableObjective: to examine the pronunciation of initial consonants, finals and tones of examinees.Requirement: in each of the 100 syllables, each consonant appears in general not less than 3 times,In the dialect of missing or confusing will be increased 1-2 times; each vowel is generally not less than 2 times, in the dialect of missing or confusing vowels will be increased 1-2 times. The pronunciation of consonants or vowels of the same arrangement will be separated. The adjacent syllables appear or the alliteration and assonance.Rating: this score is 10% of the total score, or 10 points. Read the initials, finals, or tones of a word by 0.1 points. Thepronunciation is defective. Each word is deducted 0.05 points.A character is allowed to read two times, which can find the first candidates studying pronunciation have a slip of the tongue second times, according to the pronunciation evaluation.Time limit: 3 minutes. Overtime deduction (3-4 minutes deducted 0.5 points, 4 minutes or more deducted 0.8 points).The pronunciation is defective. Only two reads, 1 monosyllabic words and 2 disyllabic words are recorded. The pronunciation is deficient in 1 item mainly refers to the articulation of consonants is not accurate, but it is not a class of consonants in Mandarin read into another consonant, such as J, Q, coronal x read too close to the Z, C, s; or the correct pronunciation of a class of consonants in Mandarin the position is replaced by the more close to the site, such as J, Q, coronal x read into laminal retroflex consonants; or read tongue contact or close to the palate position over the back or front, but not completely wrong reading for dental defects; the vowel pronunciation was hekouhu, the final round of the lips pursed mouths is obviously not enough, or the sense of difference; opening mouth opening of the finals was not enough, the sense of nature is clearly incompatible; or compound vowel tongue movement was not enough; tone form, potential is basically correct, but the value is obviously low or partial High, especially the relative height or low of the four tones, which is pronounced as a tonal defect; such defects are generally systematic, and each tone is penalized by 5 single tones. 1 and 2, two have the same problem, two points are deducted respectively.Read disyllabic wordsObjective: To study the examinees except initials, vowels and tones of pronunciation, but also the tone sandhi, retroflexion and softly pronunciation.Requirement: 50 double syllables can be regarded as 100 single syllables, and the occurrences of initial consonants and finals are roughly the same as those of monosyllabic words. In addition, the sound and tone of words is not less than 2 times, and several other tones is not less than 4 times; and not less than 3 times; the r-ending retroflexion of not less than 4 times (arurier ER), the arrangement of words to avoid the same concentration of test items.Rating: this score is 20% of the total score, or 20 points. Read the initials, finals, or tones of a syllable by 0.2 points. There is a pronounced defect in pronunciation, 0.1 points each time.Time limit: 3 minutes. Overtime deduction (3-4 minutes deducted 1 points, 4 minutes or more deducted 1.6 points).The pronunciation of defective refers to the same except with outside the 1 in the r-ending retroflexion overqualification should be included in the clear pronunciation.1 and2 two tests, including one or two points in the 10%, that is 1 points 1 points, or 2 questions that allowed 2 points to determine the candidate's Mandarin level can not enter a.The candidate has voice obvious flaws, even if the score reached a level to drop, classified as a class B.Reading aloud3. read aloud from the fifth parts of the test program. Read the material (No. 1-50).Objective: To study the examinees with Mandarin reading written material level, focusing on speech, sandhi (tone, "a", "no"), tone (tone) etc..Scoring: this score is 30% of the total score. That is 30 points. For each material before 400 words (not including punctuation) cumulative calculation, each pronunciation error deduction of 0.1 points, missed a word deduction of 0.1 points, there are different degrees of dialect intonation problems (one-time points deducted 3 points; obviously, deducted 2 points; slightly reflected, deducted 1.5 points. Improper punctuation pauses, deducted 1 points each; the speed is too fast or too slow, one-time deduction of 2 points.Time limit: 4 minutes. 4 points more than 30 seconds, 1 points deducted.Note: reading materials (1-50) the word is slightly different, in order to achieve the standard for evaluation, the first 400 words of the examination candidates to read material test (after every 400 words are signs) error cumulative calculation; but the study of intonation, speed should be throughout the.From the test requirements, we should put the 50 pieces of work that offer the supply and practice as a whole. We should master it thoroughly before the exam.speakObjective: to examine the ability and standard of Mandarin spoken by an examinee without words. One-way speaking mainly, if necessary, supplemented by two-way dialogue between the main test and the examinee. One-way dialogue: the examinee according to draw the topic, say 4 minutes (not less than 3 minutes, say 4 minutes, the main test should ask the candidates to stop).Rating: this score is 30% of the total score, or 30 points. Including:(1) voice features account for 20%, or 20 points. Among them, the grade is:File 20 point pronunciation standard18 second pronunciation errors below 10 times,There is no obvious dialect;Third 16 pronunciation errors below 10 times, but the dialect is obvious; or dialect is not obvious, but the pronunciation errors of roughly 10 times -15 times;Four file 14 points of speech errors on the 10 -15, obvious dialect;Five 10 pronunciation errors of more than 15 times, obvious dialect;Six file 8 pronunciation errors, heavy accent.Phonetic features identified as the second (or two below) even if the total score above 96, nor into a class; phonetic features identified as five, even if the total score of 87 points or more, also can not enter the two grade; the above conditions, should be assessed in grade.(2) vocabulary and grammatical norms accounted for 5%. Scoring level is:File 5 points, vocabulary, grammar and norms;I have 4 second vocabulary or grammar do not conform to the situation;Third 3 points of vocabulary and grammar frequently do not conform to the situation;(3) natural fluency accounted for 5%, or 5 points. Scoring level is:One file, 5 points, natural and smooth;Second 4 basic oral fluency, poor (a similar back draft performance);Third 3 speed properly, no discourse coherence; speak out of time, I must compensate with two-way conversation. In the trial stage, the above scoring method should be adopted, and the proportion of speech grading should be increased appropriately as the situation changes.Errors and defects(1), an error: consonants, vowels and tones read another sound, tone, or in accordance with the dialect pronunciation to read.For example: initial mistakes: such as reading Z C S as ZH CH SH or reading ZH CH SH as Z, C, S, etc.. Vowel error: if O is read as e (broadcast bo-be), read ing eng as ong (shadowying-yong) and so on. The tone is wrong: Mandarin has four tones, and the candidate's pronunciation, such as retaining the tone of the dialect, is wrong.(2) defect: the transitional state of one or more syllables in the pronunciation of syllables. (although not read as the other one, but the articulation is inaccurate)Initial defect: for example, retroflex Zh, CH, SH, although not read supradental Z, C, s, but the pronunciation position too close, the sense of hearing and Mandarin initials have great differences in value. Palatal J, Q, x, read too close to Z, C, s, tongue friction. Such as Penglai, Weihai, Wendeng area: fine (God), (interesting) and interesting (relative).Vowel defects: for example, compound finals, the tongue position is obviously not enough, and it does not show theprocess of sliding. (that is, the gradual change of the tongue position and lip shape in the process of compound speech is not enough, and a part of the pronunciation change is omitted) Such as cotton padded jacket (-ao-[") to (-iao-[)Tone defect: it can basically read the four tones of Mandarin, but the tune is not in place, obviously lower or higher, and can not read the contrast of the ordinary high and low tones. (according to the testing rules, single byte words total points with 1 points, that is not a grade.)Test paper typeAccording to the test objects, the Putonghua proficiency test papers are divided into two types: type I and type ii:I rolled through mainly for the Chinese Proficiency Test (HSK) for Putonghua Proficiency Test of foreign or foreign personnel.The scope of the question for type 1 is:(1) monosyllabic words and two syllable words are from the "table. The selected test outline" second parts, including two words with an asterisk accounted for 60%, with an asterisk words accounted for 40%. The test range is limited to [table 1].(2) the sign of the reading materials is limited to 40, and the number of words is less than 10.The Putonghua Proficiency Test in the pilot phase, taking into account the students study burden, so before the end of December1996, Putonghua level test for secondary normal schools and secondary occupation school students and primary school teachers about when using type I roll.Type II rolls are available for use by personnel other than type I personnel.The scope of the questions for type II is:(1) monosyllabic words and disyllabic words in proportion respectively from the "test outline" the second part of the table a and table two selected. Selected from [table 1] accounted for 70%, of which two stars with 40%, with an asterisk accounted for 30%; selected from [table two] accounted for 30%.(2) reading materials (No. 1-50) are all signed.Matters needing attention1, pay attention to the differences of pronunciation between Mandarin and their dialects. The differences of pronunciation between Mandarin and dialect, most of them are regular. This law also has a large rule and a small rule, often contains some exceptions in the law, these are to rely on their own summary. One is a summary is not enough to check the dictionary and dictionary, to strengthen memory, practice. In practice, we should not only pay attention to the differences in phonology, but also pay attention to tone words and retroflexion learning.2, pay attention to the pronunciation of polyphonic characters.One syllable is one of the important reasons for misreading. We must pay great attention to it. Chinese can from two aspects to pay attention to learning. The first is to focus on different meaning polyphones, find out its different meaning, to remember the different pronunciation from different meaning. The second category is the same meaning to understand its polyphone, on different occasions. This kind of character in most cases is used "width" of a sound, a sound use "narrow", just remember "narrow" on the line.3, pay attention to the characters of similar or misreading caused by radical analogy. Because of a similar shape by a word into the wrong person to read the B word, this is a very common misunderstanding. By itself or by the radical radical pronunciation consisting of a commonly used word pronunciation, to a misunderstanding on the pronunciation of the new words and cause, is also very common. The so-called "scholar to read half", make a joke, this misreading refers to.4, pay attention to the pronunciation of the word pronunciation. Mandarin vocabulary, a word (or word morpheme), meaning the same or similar, but there are two or more different in reading habits, these are called "variant pronunciation". In order to make the pronunciation of standard, in 50s on the organization of the National Putonghua pronunciation Review Committee, and the Mandarin pronunciation variants were examined. After several decades, several drafts. 1985. The state announced the "variants in Putonghua pronunciation table", Mandarin variants asked the national culture and education, publishing, broadcasting and other departments, industries involved in reading, phonetic, in this new "pronunciation table" shallprevail. In the use of "sound meter", it is better to compare the reference book (such as "Xinhua Dictionary", "modern Chinese Dictionary", etc.). Look at all the pronunciations, senses, and use cases of a word, and then look at pronunciation and use cases in the audio meter. After comparing, if found the two have discrepancy, all should take "sound meter" as standard. Thus, the purpose of pronunciation standards is achieved.Certificate of gradeCandidates who have been tested will be able to obtain the national proficiency test certificate for Putonghua proficiency, which is produced by the national language work committee. The candidate's test scores and grades will be recorded in the certificate.Promulgated in 1997, "Putonghua proficiency test management measures" (Trial) stipulates that "Putonghua proficiency certificate is valid for 5 years", more than the time limit will be re examined.Putonghua proficiency test management approach "(revised 2003 officially canceled), on the putonghua grade certificate is valid for reference, that is, Putonghua level certificate, no national general validity limit.Since 2011, the Mandarin certificate style has been revised. The old version includes the date of birth and the new version; the old edition has no ID number, the new edition is added; the new edition increases the testing time. Are covered with the State Language Work Committee official seal and test center.It is changed from a previous form to a paper form with a certificate shell.。
七年级英语下册Test for Unit 9
Test for Unit 9(时间120分钟，满分120分)题号一二三四五六七八九十十一十二总分得分听力部分(20分)一、听句子，根据所听内容选择合适的应答语。
(5分)1．Is Emily tall or short?(B)1.A.She is twelve years old. B．She is tall.C．Yes，she is from Canada.2．What does your sister do?(C)2.A.She is very beautiful. B．She has straight hair.C．She is an actress.3．Does Mary have big or small eyes?(A)3.A.She has big eyes. B．She is of medium height.C．She has curly hair.4．See you later，Peter!(B)4.A.No problem. B．See you. C．You're welcome.5．What does he like to wear?(C)5.A.Blonde hair. B．A cup of tea. C．Jeans.二、听小对话，选择正确答案。
(5分)6．W：What do your parents look like，John?M：My father has a round face，but my mother has a long face.(A)6.Who has a round face?A．John's father. B．John's mother. C．John.7．W：Does Lucy have curly hair?M：No，she has straight hair.(B)7.What does Lucy look like?A．She has curly hair. B．She has straight hair.C．She has long hair.8．M：Which is your teacher?W：The man with sunglasses over there.(B)8.What does the girl's teacher look like?A．He wears a shirt. B．He wears sunglasses.C．He wears jeans.9．W：Is your sister good looking?M：Yes，she has big eyes and a small mouth.(C)9.What does the man's sister look like?A．She has a long face. B．She has a big mouth.C．She has big eyes.10．M：The math teacher is coming.W：OK.Let's take out the math book.(A)10.Where are they talking?A．In the classroom. B．In the park. C．At home.三、听对话，根据所听内容写单词补全对话。
新视野大学英语视听说教程4(第二版)Unit 9_test答案
心之所向，所向披靡Unit 9 testNextPart I ScriptDirections: Listen to the short dialogs, and then choose the correct answers to the questions. You will hear the recording twice. After the first playing, there will be time for you to choose the correct answers. Use the second playing to check your answers.1.(Listen to the audio recording for the question.)A. Decrease imports.B. Increase imports.C. Decrease its deficit by 5%.D. Increase its deficit by 5%.2.(Listen to the audio recording for the question.)A. Introduction.B. Growth.C. Mature.D. Decline.3.(Listen to the audio recording for the question.)A. 120 pesos.B. 200 pesos.C. 240 pesos.D. 300 pesos.4.(Listen to the audio recording for the question.)A. The woman speaker is having an interview.B. The man is telling the woman she gets the job.C. The woman is a reference of the man's interviewee.D. The two speakers are colleagues.5.(Listen to the audio recording for the question.)A. The same as the woman's opinion.B. WTO is a good thing.C. WTO is no good.D. WTO is good but not without problems.Part II ScriptDirections: Listen to the passage three times. When the passage is read for the first time, listen for the general idea. When the passage is read the second time, fill in the blanks numbered from (1) to (7) with the exact words you hear. For blanks numbered from (8) to (10), write down either the exact words you hear or the main points in your own words. When the passage is read the third time, check your answers.The U.S. economy lost steam in the second quarter as consumers hit by high energy costs turned thrifty.U.S. gross domestic product, atotal output within the nation'sborders, climbed at arate in the April-June period, Commerce Department dataConsumer spending rose at an insignificant 1 percent rate, a mere shadow of the4.1 percent jump of the first quarter and the since the second quarter of 2001, when the economy was in recession.The degree to which consumers were buy surprised Wall Streetanalysts. A leading"shockingly small".spending in the spring.(8)While GDP growth proved weaker than expected, the economy's pulse has already shown signs of quickening. (9)Bond prices rose as investors saw weakness, but the dollar moved higher againstthe euro as foreign exchange traders saw strength. Stock prices were little changed. "(10)" Treasury Secretary John Snow told correspondents.Your answer Correct answer(1) measure measure(2) modest modest(3) showed showed(4) weakest weakest(5) reluctant reluctant(6) economist economist(7) Analysts Analysts(8) Inflation rose at a relatively speedy3.3 percent rate in the secondquarter, the same as at the start ofthe year(9) Other data on Friday showed consumerspirits have brightened a bit thismonth while business activity haspicked up in the Midwest(10) When you combine the first quarter andthe second quarter, we're growing at3.75 percent, which is a very strong,sustainable growth ratePart III ScriptDirections: Listen to the following recording, and then choose the correct answers to the questions. You will hear the recording twice. After the first playing, there will be time for you to choose the correct answers. Use the second playing to check your answers.1.What does a "compulsory license" require drug manufacturers to do?A. To give up their patents completely.B. To give up their patents in case of health crises.C. To shorten the period of their patents.D. To keep their patents intact.2.What is true of large drug companies under "compulsory license"?A. They are compelled to sell their drugs at low prices.B. They are compelled to sell their drugs at high prices.C. They must allow other companies to produce their drugs at low costs.D. They are not compelled to disclose their intellectual property.3.Why do international drug companies oppose the Doha agreement?A. They think it will prevent drug companies from seeking cures for diseases.B. They must pay a great deal for their research.C. Patents help drug companies recover the costs of developing newmedicines.D. All of the above.4.What do developing countries want during health emergencies?A. They want to produce and import low-cost drugs.B. The want to produce and import high-cost effective drugs.C. The want to produce and export low-cost drugs.D. The want to produce and export high-cost drugs.5.What is the passage mainly about?A. WTO debate between rich and poor countries on drug production.B. WTO debate on the advantages and disadvantages of compulsorylicenses.C. WTO agreement on drug patents.D. WTO agreement against compulsory licenses.Part IVDirections: Choose the best answer to each of the following statements.1.Excuse me. It just ______ my mind what GDP stands for.A. slippedB. stoppedC. skippedD. slid2.GDP is simply a gross measure of market activity, of money changing hands.It makes no distinction _________ between the desirable and theundesirable.A. thatB. whatC. whicheverD. whatsoever3.The bank's president and its officers all enjoyed a good laugh at the womanfor using a $250,000 Rolls-Royce as collateral ________ a $5,000 loan.A. toB. atC. overD. against4.Green GDP _______ traditional GDP minus the costs of resources andenvironmental damage.A. equalsB. equals toC. is equalD. is equivalent as5.Some enterprises attach importance only _____ costs directly related totheir growth, but turn a blind eye _____ serious damage to resources and the environment.A. to...toB. to...onC. with...toD. with...on6.The management of the insurance corporation explained to angry employeesthat their opposition to a management buyout ______ from amisunderstanding.A. increasedB. raisedC. roseD. arose7.According to the proposed MBO, the staff and management of the firm wouldjointly _______ controlling shares in the firm.A. requireB. inquireC. acquireD. squire8.By becoming the workshop of the world, China has pushed down the pricesof all ___________ goods.A. mass-produceB. mass-producedC. mass-producingD. mass-production9.If you want to expand your business, you must start a marketing campaignand get more leads ___________.A. set offB. set upC. set asideD. set down10.John's worried about his PR strategy is too time-_________ andlabor-__________.A. consuming...intensiveB. consumption...intensifyingC. consumed...intensifiedD. consuming...intensified。
4-9分达人雅思阅读真题还原及解析4.c
Test 1 ···························································································1Test 2 ·························································································15Test 3 ·························································································29Test 4 ·························································································44Test 5 ·························································································59Test 6 ·························································································74真题解析·····················································································89Answer Keys ··········································································240Test 1The Impact of the Potato2014年6月28日Ancient Chinese Chariots2014年3月15日 2012年6月30日Stealth Forces in Weight Loss 2014年5月24日 Test 2Andrea Palladio: Italian Architect2013年5月16日Corporate Social Responsibility 2015年3月21日 2014年5月15日The Significant Role of Mother Tongue in Education2012年5月26日Test 3V oyage of Going: Beyond the Blue Line 2 2012年5月26日Does IQ Test Prove Creativity?2009年12月5日Monkeys and Forests 2012年10月11日Test 4T-rex: Hunter or Scavenger?2013年11月16日 2012年4月12日Leaf-cutting Ants and Fungus2013年5月18日 2012年4月28日Honey Bees in Trouble 2015年5月30日 Test 5Ants Could Teach Ants2014年7月19日The Development of Plastics2014年7月26日Global Warming in New Zealand 2014年7月12日Test 6Computer Games for Preschoolers: Nintendo’s Research and Design Process2014年7月19日The History of Pencil2014年8月2日Motivating Drives 2014年8月21日TEST 4READING PASSAGE 1You should spend about 20 minutes on Questions 1-13, which are based on Reading Passage 1 below.44TEST 445Questions 1-7Do the following statements agree with the information given in Reading Passage 1?In boxes1-7 on your answer sheet, writeTRUE if the statement agrees with the informationFALSE if the statement contradicts the informationNOT GIVEN if there is no information in this passage1J ack Horner knew exactly that the bone picked up in his father’s ranch belonged to a certain dinosaur when he was at the age of 8.2J ack Horner achieved a distinctive degree in university when he graduated.3J ack Horner believes that the number of prey should be more than that of predators.4T-rex’s number is equivalent to the number of vulture in the Serengeti.5T he hypothesis that T-rex is the top predator conflicts with the fact of preda-tor-prey ratio which Jack found.6J ack Horner refused to accept any other viewpoints about T-rex’s theory.7J ack Horner is the first man that discovered T-rex’s bones in the world.46TEST 4Questions 8-13Complete the sentences below.Choose NO MORE THAN TWO WORDS from the passage for each answer.Write your answers in boxes 8-13 on your answer sheet.Jack Horner found that T-rex’s 8 __________ is shorter than the thigh bone, which demonstrates that it was actually a 9 __________, unlike other swift animals such as ostrich or 10 ____________ that was built to 11 ____________. Another explanation supports his idea is that T-rex’s teeth were rather12 ____________, which only allowed T-rex to 13 ____________ hard bones instead of tearing flesh like Velociraptor.474849Questions 14-19Use the information in the passage to match the options (listed A-C) with the activities or features of ants below.Write the appropriate letters, A-C, in boxes 14-19 on your answer sheet.NB You may use any letter more than once.A Leaf-cutting antsB Lower attine antsC Both leaf-cutting ants and lower attine ants14can use toxic leaves to feed fungus15build small nests and live with different foreign fungus16use dead vegetation to feed fungus17raise a single fungus which do not live with other variety of foreigners18normally keep a highly dangerous parasite under control19use special strategies to fight against Escovopsis50TEST 4Questions 20-24Reading Passage 2 has eight paragraphs, A-H.Which paragraph contains the following information?Write the correct letter, A-H, in boxes 20-24 on your answer sheet.20Dangerous outcome of Escovopsis21Risk of growing single fungus22Comparison of the features of two different nests for feeding gardens23Discovery of significant achievements made by ants earlier than human24Advantages of growing a new breed of fungus in the ant farm51Questions 25-26Choose the correct letter, A, B, C or D.Write your answers in boxes 25-26 on your answer sheet.25W hat does the author think of Currie’s opinion on the saying “ants keep their gardens free of parasites”?A His viewpoint was verified later.B His earlier study has sufficient evidence immediately.C There is no detail mentioned in the article.D His opinion was proved to be wrong later on.26What did scientists find on the skin of ants under microscope?A some white cloud mold embed in their skinB that wax is all over their skinC a substance which is useful to humansD a substance which suppresses growth of all fungus525354TEST 4Questions 27-30Do the following statements agree with the claims of the writer in Reading Passage 3?In boxes 27-30 on your answer sheet, writeYES if the statement agrees with the claims of the writerNO if the statement contradicts the claims of the writerNOT GIVEN if it is impossible to say what the writer thinks about this27I n the United States, farmers use honeybees in a large scale over the past few years.28C lean farming practices would be harmful to farmers’ health.29T he blue orchard bee is the most efficient pollinator for every crop.30I t is beneficial to other local creatures to protect native bees.55Questions 31-35Choose the correct letter, A, B, C or D.Write your answers in boxes 31-35 on your answer sheet.31 T he example of the ‘Fruitless Fall’ underlines the writer’s point aboutA needs for using pesticides.B impacts of losing insect pollinators.C vulnerabilities of native bees.D benefits in building more pollination industries.32 W hy can honeybees adapt to the modern agricultural system?A The honeybees can pollinated more crops efficiently.B The bees are semi-domesticated since ancient times.C Honeybee hives can be protected from pesticides.D The ability of wild pollinators using to serve crops declines.33 T he writer mentions factories and assembly lines to illustrateA one drawback of the industrialised agricultural system.B a low cost in modern agriculture.C the role of honeybees in pollination.D what a high yield of industrial agriculture.34 I n the 6th paragraph, Winfree’s experiment proves thatA honeybees can pollinate various crops.B there are many types of wild bees as the pollinators.C wild bees can increase the yield to a higher percentage.D w ild bees work more efficiently as a pollinator than honeybees in certaincases.56TEST 435 W hat does the writer want to suggest in the last paragraph?A the importance of honeybees in pollinationB the adoption of different bees in various sizes of agricultural systemC the comparison between the intensive and the rarefied agricultural systemD the reason why farmers can rely on native pollinators57Questions 36-40Complete each sentence with the correct ending, A-F, below.Write the correct letter, A-F, in boxes 36-40 on your answer sheet.36Headlines of colony collapse disorder state that37Viewpoints of Freitas manifest that38Examples of blue orchard bees have shown that39Centris tarsata is mentioned to exemplify that40One finding of the research in Delaware Valley is thatA native pollinators can survive when a specific plant is supplied.B it would cause severe consequences to both commerce and agriculture.C honeybees can not be bred.D some agricultural landscapes are favourable in supporting wild bees.E a large scale of honeybees are needed to pollinate.F an agricultural system is fragile when relying on a single pollinator.58167Test 4Reading Passage 1. T-rex: Hunter or Scavenger?词汇详解imprint n . 印记；痕迹；特征；版本说明（作动词时，意为“加特征；刻上记号”；作名词时，近义词有：mark ，print ，characteristic ，trace 。
ModelTest9听力原文及答案
ModelTest9听⼒原⽂及答案Mod el T est 9Section A1. M: Liz took a taxi to her office today.W: Yes. Her friend Ted usually drives her to the office but now he is out of town on business.Q: What do we learn from the conversation?2. W: Joe suggested going to the party.M:Whatever he suggested is fine with me. Q:What will the man probably do?3. M: Jan's husband is certainly easy going and friendly.W: Yes, the exact opposite of her father.Q: What is Jan's father like?4. W: Do you happen to know how to call New York from here?M: I've no idea, I'm afraid. Why don't you ask Helen?Q: What does the man imply about Helen?5. W: I was surprised to see you and your family at the Shopping Mall yesterday.M: Our junior school closed down because flu broke out.Q: What do we learn from the conversation?6. W: I hope you like the novel I lent you. I wasn't sure whether it was the kind of bookyou would be interested in. M: You know, I had the same doubt at first. But once I started I simply couldn't put it down.Q: What does the man mean?7. M: Wasn't it terrific?W: Well, the music was enjoyable, but the story didn't make much sense to me. I still prefer traditional drama with strong characters and an exciting plot. Q: What does the woman think of the play?8. W: Your exam is over, isn't it? Why aren't you cheerful?M: Oh, I don't know. It isn't that the questions were too hard, but I always feel uneasy when the exam doesn't seem to have much to do with the book Q:What was the man's opinion of the exam?Now you will hear two long conversations.Conversation OneM: Well, Claudia, how is your first day on campus working out?Wi: Actually I'm overwhelmed. This campus is too large. I am not really sure how to get around it. How about you? M:Yeah, I'm having the same problem. That's why we should leave a bit earlier to get toour biology class on time. W, : That sounds like a good plan to me! It's 9 : 30 right now. I think our class starts at10 i 00 a. m.M: Actually it starts at 10 : 15 a. m. The schedule says the class is at the Darwin Build ing, but I can't seem to find on the map.Wi: Why don't you ask that woman sitting on the bench? M; All right,it can't hurt to ask. (To another woman. )M: Excuse me, Miss. Could you tell us how to get to Darwin Building?W2: Darwin Building? Oh yes,I remember... Do you see that building to our right there? That's the East Dormitory. Next to it is the Science Library. Just follow the path between those two buildings until you reach the other side. Then take the left-hand path and follow it to the end.It leads straight to the Darwin Building.M: Let me say, after we pass between the Dorm and the Library, we follow the path to the left until the end of the road,then we should be there,right?W2: Yes, that's it.M: Thank you very much, indeed.W2: You are welcome.Questions 9 to 11 are based on the conversation you have just heard.9. What is their first impression of the campus?10.What are the two students doing?11.How many minutes were left to them before the biology class began?Conversation TwoM: So you're going to be writing for the school newspaper?W: Yes, I'm excited about it. I'm thinking about journalism as a career.M: Oh! Congratulations! How do they decide whom to hire?W: I have to send the writing sample. I used one of the essays I've written for the literature class, then the editor assigned me a topic to write a short article about it. M: What did you write about? W: Actually, it was a lot of fun. I wrote about the students' play that has been performing this month.M: Oh, I saw that play. The director is a friend of mine. It really called in a stir around here.W: Yeah, I know. That's what I wrote about—People's reaction to it. It's really interesting.M: Have you finished the article? Can I read it?W: Sure. I just made a couple of copies. So you can have one.M: Thanks. I wish I were a better writer. Working for the paper sounds like lots of fun. W: Well, they're looking to add one or two photographs to the staff. If you want we could walk over to the newspaper office and I'll introduce you to the photography editor. M; That will be terrific! But can we go tomorrow?W; Sure. Or maybe you should call and set up a time to meet tomorrow. M:Good idea. I'll do that before I go to class. W; All right. See you tomorrow.Questions 12 to 15 are based on the conversation you have just heard.12.What are the speakers mainly discussing?13.What was the topic of the woman's article?14.What job is the man going to apply for?15.What will the woman do tomorrow?Section BPassage OneHow much living space does a person need? What happens when his space requiremerits are not adequately met? Sociologists and psychologists are conducting experiments on rats to try to determine the effects of overcrowded conditions on man. Recent studies have shown that thebehavior of rats is greatly affected by space. If rats have adequate living space,they eat well,sleep well,and reproduce well. However if their living conditions become too crowded, their behavior patterns and e-ven their health perceptibly change. They cannot sleep and eat well, and signs of fear and tension become obvious. The more crowded they are, the more they tend to bite each other and even kill each other. Thus for rats, population and violence are directly related. Is this a natural law for human society as well? Is adequate space not only desirable, but essential for human survival? Questions 16 to 18 are based on the passage you have just heard.16.For what purpose did the scientists conduct the experiments on rats?17.When the rats become over-crowded, which one of the behavior patterns is not shown in theexperiment?18.What did the experiments prove?Passage TwoColumbus sailed from Spain in September 1492, looking for gold. Native Americans greeted him, offering gifts of corn. Columbus found little gold on that trip,but he collected many plants,including corn to bring back to Spain. Columbus didn't know it. But the corn was much more valuable than gold. Farmers from Europe to Asia accepted it immediately. They grew it on cold mountain sides and in tropical forest. Today it feeds millions of people all over the world. On his second trip, Columbus brought back a bag of chocolate beans to make chocolate. Europeans and Asians loved this new drink,and soon they were paying a great deal of money for the beans.Chocolate beans became so valuable in Central America that they were used as cash for 200 years. Tomatoes and potatoes took some time to become popular. Eventually, however, they became the basis of a lot of popular food. It is hard to imagine life without fried potatoes and chocolate. Thanks to native American cultures, many people are able to enjoy lots of tasty food. Questions 19 to 21 are based on the passage you have just heard.19.Why is corn feeding millions of people today?20.What did Columbus bring back on his second trip?21.What was the result of Columbus' two trips to America?Passage ThreeIn its early years, the Children's Book Show was intended mainly for teachers and librarians. As it became more widely known.and successful, more and more family and school parties began to come so that it grew into a real children's book show and a show with a double purpose. For years it was held in various halls in London. In answer to enthusiastic invitations to bring it to different parts of the country, the decision was taken to move outside the capital. One year it was held in Leeds, then in Bristol as well as in London, and now it comes to Glasgow. This year's show will again interest both the general public and specialists. Admission will be free, but school parties must be booked in advance. In a large room near the entrance there will be a self-service bookshop where every book on show will be for sale.Questions 22 to 25 are based on the passage you have just heard.22.What are the books in the exhibition intended for?23.Who was the show intended for in its early years?24.What caused the book show to grow?25.What must parties of school children do this year?Section CHave you had a headache recently? The pain can be (26) temporary, mild and cured by a simple painkiller like aspirin. Or, it can be (27) severe.More than forty five (28) million people in the United States suffer chronic(fj|'|4l^J) headaches. The US Headache Consortium is a group with seven member (29) organizations. They are (30) attempting to improve treatment of one kind of headache—the mi-graine(j^^'H:'i^^tc^). Some people experience this kind of pain as often as two weeks every month. About seventy percent of migraine (31) sufferers are women.Some people (32) describe the pain as similar to a repeated beat. Others compare it to someone driving a sharp (33) object into the head. Some people take medicine every day to prevent or ease migraine headaches. (34) Others use medicine to control pain already developed. Doctors treating migraine sufferers often order medicines from a group of certain drugs. (35) Most migraines react at least partly to existing medicine. And most people can use existing medicine without experiencing bad effects. (36) Doctors sometimes use caffeine to treat migraine headaches. Interestingly, caffeine also can cause some migraines.Model T est 91-5 DDBCC 6-10 ACBBC 11-15 CCBCD 16-20 BCDDD 21-25 BDADC 26. temporary 27. severe 28. million 29. organizations 30. attempting 31. sufferers 32. describe 33. object34. Others use medicine to control pain already developed35. Most migraines react at least partly to existing medicine36. Doctors sometimes use caffeine to treat migraine headaches。
人教版初中英语九年级上册TestforUnits11～14-课件
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A. set out B. called in C. brought back D. left out ( )13. It ________ be John's. It's too big for him. B A. could B. might C. mustn't D. can't
sit on the magic chair 23 a hurry，and he kept falling on the ground. He tried once again and didn't fall. Looking around，Mario saw George，Lucas，and Diana—three of his best friends— holding him up， 24 he wouldn't fall. At the same time， others did 25 but make fun of him，enjoying each fall. After that，he knew who his true friends were.
can find everything on the Internet”. In fact，they are wrong. One can't find everything on the Internet！While the Internet makes search(搜索) easy，and it is probably the best resource(资源) for many health and science topics， we really need books. We can only be sure that the information we find on the Internet is true by reading books.
(完整word版)投资学第7版Test Bank答案09
Multiple Choice Questions1. In the context of the Capital Asset Pricing Model (CAPM) the relevant measure of riskisA) unique risk.B) beta.C) standard deviation of returns.D) variance of returns.E) none of the above.Answer: B Difficulty: EasyRationale: Once, a portfolio is diversified, the only risk remaining is systematic risk,which is measured by beta.2. According to the Capital Asset Pricing Model (CAPM) a well diversified portfolio's rateof return is a function ofA) market riskB) unsystematic riskC) unique risk.D) reinvestment risk.E) none of the above.Answer: A Difficulty: EasyRationale: With a diversified portfolio, the only risk remaining is market, or systematic, risk. This is the only risk that influences return according to the CAPM.3. The market portfolio has a beta ofA) 0.B) 1.C) -1.D) 0.5.E) none of the aboveAnswer: B Difficulty: EasyRationale: By definition, the beta of the market portfolio is 1.4. The risk-free rate and the expected market rate of return are 0.06 and 0.12, respectively.According to the capital asset pricing model (CAPM), the expected rate of return on security X with a beta of 1.2 is equal toA) 0.06.B) 0.144.C) 0.12.D) 0.132E) 0.18Answer: D Difficulty: EasyRationale: E(R) = 6% + 1.2(12 - 6) = 13.2%.5. The risk-free rate and the expected market rate of return are 0.056 and 0.125,respectively. According to the capital asset pricing model (CAPM), the expected rate of return on a security with a beta of 1.25 is equal toA) 0.1225B) 0.144.C) 0.153.D) 0.134E) 0.117Answer: A Difficulty: EasyRationale: E(R) = 5.6% + 1.25(12.5 - 5.6) = 14.225%.6. Which statement is not true regarding the market portfolio?A) It includes all publicly traded financial assets.B) It lies on the efficient frontier.C) All securities in the market portfolio are held in proportion to their market values.D) It is the tangency point between the capital market line and the indifference curve.E) All of the above are true.Answer: D Difficulty: ModerateRationale: The tangency point between the capital market line and the indifference curve is the optimal portfolio for a particular investor.7. Which statement is not true regarding the Capital Market Line (CML)?A) The CML is the line from the risk-free rate through the market portfolio.B) The CML is the best attainable capital allocation line.C) The CML is also called the security market line.D) The CML always has a positive slope.E) The risk measure for the CML is standard deviation.Answer: C Difficulty: ModerateRationale: Both the Capital Market Line and the Security Market Line depict risk/return relationships. However, the risk measure for the CML is standard deviation and the risk measure for the SML is beta (thus C is not true; the other statements are true).8. The market risk, beta, of a security is equal toA) the covariance between the security's return and the market return divided by thevariance of the market's returns.B) the covariance between the security and market returns divided by the standarddeviation of the market's returns.C) the variance of the security's returns divided by the covariance between the securityand market returns.D) the variance of the security's returns divided by the variance of the market's returns.E) none of the above.Answer: A Difficulty: ModerateRationale: Beta is a measure of how a security's return covaries with the market returns, normalized by the market variance.9. According to the Capital Asset Pricing Model (CAPM), the expected rate of return onany security is equal toA) R f+ β [E(R M)].B) R f + β [E(R M) - R f].C) β [E(R M) - R f].D) E(R M) + R f.E) none of the above.Answer: B Difficulty: ModerateRationale: The expected rate of return on any security is equal to the risk free rate plus the systematic risk of the security (beta) times the market risk premium, E(R M - R f).10. The Security Market Line (SML) isA) the line that describes the expected return-beta relationship for well-diversifiedportfolios only.B) also called the Capital Allocation Line.C) the line that is tangent to the efficient frontier of all risky assets.D) the line that represents the expected return-beta relationship.E) the line that represents the relationship between an individual security's return andthe market's return.Answer: D Difficulty: ModerateRationale: The SML is a measure of expected return per unit of risk, where risk isdefined as beta (systematic risk).11. According to the Capital Asset Pricing Model (CAPM), fairly priced securitiesA) have positive betas.B) have zero alphas.C) have negative betas.D) have positive alphas.E) none of the above.Answer: B Difficulty: ModerateRationale: A zero alpha results when the security is in equilibrium (fairly priced for the level of risk).12. According to the Capital Asset Pricing Model (CAPM), under priced securitiesA) have positive betas.B) have zero alphas.C) have negative betas.D) have positive alphas.E) none of the above.Answer: D Difficulty: Moderate13. According to the Capital Asset Pricing Model (CAPM), over priced securitiesA) have positive betas.B) have zero alphas.C) have negative betas.D) have positive alphas.E) none of the above.Answer: C Difficulty: ModerateRationale: A zero alpha results when the security is in equilibrium (fairly priced for the level of risk).14. According to the Capital Asset Pricing Model (CAPM),A) a security with a positive alpha is considered overpriced.B) a security with a zero alpha is considered to be a good buy.C) a security with a negative alpha is considered to be a good buy.D) a security with a positive alpha is considered to be underpriced.E) none of the above.Answer: D Difficulty: ModerateRationale: A security with a positive alpha is one that is expected to yield an abnormal positive rate of return, based on the perceived risk of the security, and thus isunderpriced.15. According to the Capital Asset Pricing Model (CAPM), which one of the followingstatements is false?A) The expected rate of return on a security decreases in direct proportion to a decreasein the risk-free rate.B) The expected rate of return on a security increases as its beta increases.C) A fairly priced security has an alpha of zero.D) In equilibrium, all securities lie on the security market line.E) All of the above statements are true.Answer: A Difficulty: ModerateRationale: Statements B, C, and D are true, but statement A is false.16. In a well diversified portfolioA) market risk is negligible.B) systematic risk is negligible.C) unsystematic risk is negligible.D) nondiversifiable risk is negligible.E) none of the above.Answer: C Difficulty: ModerateRationale: Market, or systematic, or nondiversifiable, risk is present in a diversified portfolio; the unsystematic risk has been eliminated.17. Empirical results regarding betas estimated from historical data indicate thatA) betas are constant over time.B) betas of all securities are always greater than one.C) betas are always near zero.D) betas appear to regress toward one over time.E) betas are always positive.Answer: D Difficulty: ModerateRationale: Betas vary over time, betas may be negative or less than one, betas are not always near zero; however, betas do appear to regress toward one over time.18. Your personal opinion is that a security has an expected rate of return of 0.11. It has abeta of 1.5. The risk-free rate is 0.05 and the market expected rate of return is 0.09.According to the Capital Asset Pricing Model, this security isA) underpriced.B) overpriced.C) fairly priced.D) cannot be determined from data provided.E) none of the above.Answer: C Difficulty: ModerateRationale: 11% = 5% + 1.5(9% - 5%) = 11.0%; therefore, the security is fairly priced.19. The risk-free rate is 7 percent. The expected market rate of return is 15 percent. If youexpect a stock with a beta of 1.3 to offer a rate of return of 12 percent, you shouldA) buy the stock because it is overpriced.B) sell short the stock because it is overpriced.C) sell the stock short because it is underpriced.D) buy the stock because it is underpriced.E) none of the above, as the stock is fairly priced.Answer: B Difficulty: ModerateRationale: 12% < 7% + 1.3(15% - 7%) = 17.40%; therefore, stock is overpriced and should be shorted.20. You invest $600 in a security with a beta of 1.2 and $400 in another security with a betaof 0.90. The beta of the resulting portfolio isA) 1.40B) 1.00C) 0.36D) 1.08E) 0.80Answer: D Difficulty: ModerateRationale: 0.6(1.2) + 0.4(0.90) = 1.08.21. A security has an expected rate of return of 0.10 and a beta of 1.1. The market expectedrate of return is 0.08 and the risk-free rate is 0.05. The alpha of the stock isA) 1.7%.B) -1.7%.C) 8.3%.D) 5.5%.E) none of the above.Answer: A Difficulty: ModerateRationale: 10% - [5% +1.1(8% - 5%)] = 1.7%.22. Your opinion is that CSCO has an expected rate of return of 0.13. It has a beta of 1.3.The risk-free rate is 0.04 and the market expected rate of return is 0.115. According to the Capital Asset Pricing Model, this security isA) underpriced.B) overpriced.C) fairly priced.D) cannot be determined from data provided.E) none of the above.Answer: B Difficulty: ModerateRationale: 11.5% - 4% + 1.3(11.5% - 4%) = -2.25%; therefore, the security isoverpriced.23. Your opinion is that CSCO has an expected rate of return of 0.1375. It has a beta of 1.3.The risk-free rate is 0.04 and the market expected rate of return is 0.115. According to the Capital Asset Pricing Model, this security isA) underpriced.B) overpriced.C) fairly priced.D) cannot be determined from data provided.E) none of the above.Answer: C Difficulty: ModerateRationale: 13.75% - 4% + 1.3(11.5% - 4%) = 0.0%; therefore, the security is fairlypriced.24. Your opinion is that CSCO has an expected rate of return of 0.15. It has a beta of 1.3.The risk-free rate is 0.04 and the market expected rate of return is 0.115. According to the Capital Asset Pricing Model, this security isA) underpriced.B) overpriced.C) fairly priced.D) cannot be determined from data provided.E) none of the above.Answer: A Difficulty: ModerateRationale: 15% - 4% + 1.3(11.5% - 4%) = 1.25%; therefore, the security is under priced.25. Your opinion is that Boeing has an expected rate of return of 0.112. It has a beta of 0.92.The risk-free rate is 0.04 and the market expected rate of return is 0.10. According to the Capital Asset Pricing Model, this security isA) underpriced.B) overpriced.C) fairly priced.D) cannot be determined from data provided.E) none of the above.Answer: A Difficulty: ModerateRationale: 11.2% - 4% + 0.92(10% - 4%) = 1.68%; therefore, the security is underpriced.26. Your opinion is that Boeing has an expected rate of return of 0.0952. It has a beta of0.92. The risk-free rate is 0.04 and the market expected rate of return is 0.10.According to the Capital Asset Pricing Model, this security isA) underpriced.B) overpriced.C) fairly priced.D) cannot be determined from data provided.E) none of the above.Answer: C Difficulty: ModerateRationale: 9.52% - 4% + 0.92(10% - 4%) = 0.0%; therefore, the security is fairly priced.27. Your opinion is that Boeing has an expected rate of return of 0.08. It has a beta of 0.92.The risk-free rate is 0.04 and the market expected rate of return is 0.10. According to the Capital Asset Pricing Model, this security isA) underpriced.B) overpriced.C) fairly priced.D) cannot be determined from data provided.E) none of the above.Answer: C Difficulty: ModerateRationale: 8.0% - 4% + 0.92(10% - 4%) = -1.52%; therefore, the security is overpriced.28. The risk-free rate is 4 percent. The expected market rate of return is 11 percent. If youexpect CAT with a beta of 1.0 to offer a rate of return of 10 percent, you shouldA) buy stock X because it is overpriced.B) sell short stock X because it is overpriced.C) sell stock short X because it is underpriced.D) buy stock X because it is underpriced.E) none of the above, as the stock is fairly priced.Answer: B Difficulty: ModerateRationale: 10% < 4% + 1.0(11% - 4%) = 11.0%; therefore, stock is overpriced andshould be shorted.29. The risk-free rate is 4 percent. The expected market rate of return is 11 percent. If youexpect CAT with a beta of 1.0 to offer a rate of return of 11 percent, you shouldA) buy stock X because it is overpriced.B) sell short stock X because it is overpriced.C) sell stock short X because it is underpriced.D) buy stock X because it is underpriced.E) none of the above, as the stock is fairly priced.Answer: E Difficulty: ModerateRationale: 11% = 4% + 1.0(11% - 4%) = 11.0%; therefore, stock is fairly priced. 30. The risk-free rate is 4 percent. The expected market rate of return is 11 percent. If youexpect CAT with a beta of 1.0 to offer a rate of return of 13 percent, you shouldA) buy stock X because it is overpriced.B) sell short stock X because it is overpriced.C) sell stock short X because it is underpriced.D) buy stock X because it is underpriced.E) none of the above, as the stock is fairly priced.Answer: D Difficulty: ModerateRationale: 13% > 4% + 1.0(11% - 4%) = 11.0%; therefore, stock is under priced. 31. You invest 55% of your money in security A with a beta of 1.4 and the rest of yourmoney in security B with a beta of 0.9. The beta of the resulting portfolio isA) 1.466B) 1.157C) 0.968D) 1.082E) 1.175Answer: E Difficulty: ModerateRationale: 0.55(1.4) + 0.45(0.90) = 1.175.32. Given the following two stocks A and BIf the expected market rate of return is 0.09 and the risk-free rate is 0.05, which security would be considered the better buy and why?A) A because it offers an expected excess return of 1.2%.B) B because it offers an expected excess return of 1.8%.C) A because it offers an expected excess return of 2.2%.D) B because it offers an expected return of 14%.E) B because it has a higher beta.Answer: C Difficulty: ModerateRationale: A's excess return is expected to be 12% - [5% + 1.2(9% - 5%)] = 2.2%. B's excess return is expected to be 14% - [5% + 1.8(9% - 5%)] = 1.8%.33. Capital Asset Pricing Theory asserts that portfolio returns are best explained by:A) economic factors.B) specific risk.C) systematic risk.D) diversification.E) none of the above.Answer: C Difficulty: EasyRationale: The risk remaining in diversified portfolios is systematic risk; thus, portfolio returns are commensurate with systematic risk.34. According to the CAPM, the risk premium an investor expects to receive on any stockor portfolio increases:A) directly with alpha.B) inversely with alpha.C) directly with beta.D) inversely with beta.E) in proportion to its standard deviation.Answer: C Difficulty: EasyRationale: The market rewards systematic risk, which is measured by beta, and thus, the risk premium on a stock or portfolio varies directly with beta.35. What is the expected return of a zero-beta security?A) The market rate of return.B) Zero rate of return.C) A negative rate of return.D) The risk-free rate.E) None of the above.Answer: D Difficulty: ModerateRationale: E(R S) = r f + 0(R M - r f) = r f.36. Standard deviation and beta both measure risk, but they are different in thatA) beta measures both systematic and unsystematic risk.B) beta measures only systematic risk while standard deviation is a measure of totalrisk.C) beta measures only unsystematic risk while standard deviation is a measure of totalrisk.D) beta measures both systematic and unsystematic risk while standard deviationmeasures only systematic risk.E) beta measures total risk while standard deviation measures only nonsystematic risk.Answer: B Difficulty: EasyRationale: B is the only true statement.37. The expected return-beta relationshipA) is the most familiar expression of the CAPM to practitioners.B) refers to the way in which the covariance between the returns on a stock and returnson the market measures the contribution of the stock to the variance of the marketportfolio, which is beta.C) assumes that investors hold well-diversified portfolios.D) all of the above are true.E) none of the above is true.Answer: D Difficulty: ModerateRationale: Statements A, B and C all describe the expected return-beta relationship.38. The security market line (SML)A) can be portrayed graphically as the expected return-beta relationship.B) can be portrayed graphically as the expected return-standard deviation of marketreturns relationship.C) provides a benchmark for evaluation of investment performance.D) A and C.E) B and C.Answer: D Difficulty: ModerateRationale: The SML is a measure of expected return-beta (the CML is a measure of expected return-standard deviation of market returns). The SML provides the expected return-beta relationship for "fairly priced" securities; thus if a portfolio manager selects securities that are underpriced and produces a portfolio with a positive alpha, thisportfolio manager would receive a positive evaluation.39. Research by Jeremy Stein of MIT resolves the dispute over whether beta is a sufficientpricing factor by suggesting that managers should use beta to estimateA) long-term returns but not short-term returns.B) short-term returns but not long-term returns.C) both long- and short-term returns.D) book-to-market ratios.E) None of the above was suggested by Stein.Answer: A Difficulty: Difficult40. Studies of liquidity spreads in security markets have shown thatA) liquid stocks earn higher returns than illiquid stocks.B) illiquid stocks earn higher returns than liquid stocks.C) both liquid and illiquid stocks earn the same returns.D) illiquid stocks are good investments for frequent, short-term traders.E) None of the above is true.Answer: B Difficulty: Difficult41. An underpriced security will plotA) on the Security Market Line.B) below the Security Market Line.C) above the Security Market Line.D) either above or below the Security Market Line depending on its covariance withthe market.E) either above or below the Security Market Line depending on its standard deviation.Answer: C Difficulty: EasyRationale: An underpriced security will have a higher expected return than the SML would predict; therefore it will plot above the SML.42. The risk premium on the market portfolio will be proportional toA) the average degree of risk aversion of the investor population.B) the risk of the market portfolio as measured by its variance.C) the risk of the market portfolio as measured by its beta.D) both A and B are true.E) both A and C are true.Answer: D Difficulty: ModerateRationale: The risk premium on the market portfolio is proportional to the averagedegree of risk aversion of the investor population and the risk of the market portfolio measured by its variance.43. In equilibrium, the marginal price of risk for a risky security must beA) equal to the marginal price of risk for the market portfolio.B) greater than the marginal price of risk for the market portfolio.C) less than the marginal price of risk for the market portfolio.D) adjusted by its degree of nonsystematic risk.E) none of the above is true.Answer: A Difficulty: ModerateRationale: In equilibrium, the marginal price of risk for a risky security must be equal to the marginal price of risk for the market. If not, investors will buy or sell the security until they are equal.44. The capital asset pricing model assumesA) all investors are price takers.B) all investors have the same holding period.C) investors pay taxes on capital gains.D) both A and B are true.E) A, B and C are all true.Answer: D Difficulty: EasyRationale: The CAPM assumes that investors are price-takers with the same single holding period and that there are no taxes or transaction costs.45. If investors do not know their investment horizons for certainA) the CAPM is no longer valid.B) the CAPM underlying assumptions are not violated.C) the implications of the CAPM are not violated as long as investors' liquidity needsare not priced.D) the implications of the CAPM are no longer useful.E) none of the above is true.Answer: C Difficulty: ModerateRationale: This is discussed in the chapter's section about extensions to the CAPM. It examines what the consequences are when the assumptions are removed.46. The value of the market portfolio equalsA) the sum of the values of all equity securities.B) the sum of the values of all equity and fixed income securities.C) the sum the values of all equity, fixed income, and derivative securities.D) the sum of the values of all equity, fixed income, and derivative securities plus thevalue of all mutual funds.E) the entire wealth of the economy.Answer: E Difficulty: ModerateRationale: The market portfolio includes all assets in existence.47. The amount that an investor allocates to the market portfolio is negatively related toI)the expected return on the market portfolio.II)the investor's risk aversion coefficient.III)the risk-free rate of return.IV)the variance of the market portfolioA) I and IIB) II and IIIC) II and IVD) II, III, and IVE) I, III, and IVAnswer: D Difficulty: ModerateRationale: The optimal proportion is given by y = (E(R M)-r f)/(.01xAσ2M). This amount will decrease as r f, A, and σ2M decrease.48. One of the assumptions of the CAPM is that investors exhibit myopic behavior. Whatdoes this mean?A) They plan for one identical holding period.B) They are price-takers who can't affect market prices through their trades.C) They are mean-variance optimizers.D) They have the same economic view of the world.E) They pay no taxes or transactions costs.Answer: A Difficulty: ModerateRationale: Myopic behavior is shortsighted, with no concern for medium-term orlong-term implications.49. The CAPM applies toA) portfolios of securities only.B) individual securities only.C) efficient portfolios of securities only.D) efficient portfolios and efficient individual securities only.E) all portfolios and individual securities.Answer: E Difficulty: ModerateRationale: The CAPM is an equilibrium model for all assets. Each asset's risk premium is a function of its beta coefficient and the risk premium on the market portfolio.50. Which of the following statements about the mutual fund theorem is true?I)It is similar to the separation property.II)It implies that a passive investment strategy can be efficient.III)It implies that efficient portfolios can be formed only through active strategies.IV)It means that professional managers have superior security selection strategies.A) I and IVB) I, II, and IVC) I and IID) III and IVE) II and IVAnswer: C Difficulty: ModerateRationale: The mutual fund theorem is similar to the separation property. The technical task of creating mutual funds can be delegated to professional managers; thenindividuals combine the mutual funds with risk-free assets according to theirpreferences. The passive strategy of investing in a market index fund is efficient.51. The expected return -- beta relationship of the CAPM is graphically represented byA) the security market line.B) the capital market line.C) the capital allocation line.D) the efficient frontier with a risk-free asset.E) the efficient frontier without a risk-free asset.Answer: A Difficulty: EasyRationale: The security market line shows expected return on the vertical axis and beta on the horizontal axis. It has an intercept of r f and a slope of E(R M) - r f.52. A “fairly priced” asset liesA) above the security market line.B) on the security market line.C) on the capital market line.D) above the capital market line.E) below the security market line.Answer: B Difficulty: EasyRationale: Securities that lie on the SML earn exactly the expected return generated by the CAPM. Their prices are proportional to their beta coefficients and they have alphas equal to zero.53. For the CAPM that examines illiquidity premiums, if there is correlation among assetsdue to common systematic risk factors, the illiquidity premium on asset i is a function ofA) the market's volatility.B) asset i's volatility.C) the trading costs of security i.D) the risk-free rate.E) the money supply.Answer: C Difficulty: ModerateRationale: The formula for this extension to the CAPM relaxes the assumption thattrading is costless.54. Your opinion is that security A has an expected rate of return of 0.145. It has a beta of1.5. The risk-free rate is 0.04 and the market expected rate of return is 0.11. Accordingto the Capital Asset Pricing Model, this security isA) underpriced.B) overpriced.C) fairly priced.D) cannot be determined from data provided.E) none of the above.Answer: C Difficulty: ModerateRationale: 14.5% = 4% + 1.5(11% - 4%) = 14.5%; therefore, the security is fairlypriced.55. Your opinion is that security C has an expected rate of return of 0.106. It has a beta of1.1. The risk-free rate is 0.04 and the market expected rate of return is 0.10. Accordingto the Capital Asset Pricing Model, this security isA) underpriced.B) overpriced.C) fairly priced.D) cannot be determined from data provided.E) none of the above.Answer: A Difficulty: ModerateRationale: 4% + 1.1(10% - 4%) = 10.6%; therefore, the security is fairly priced.56. The risk-free rate is 4 percent. The expected market rate of return is 12 percent. If youexpect stock X with a beta of 1.0 to offer a rate of return of 10 percent, you shouldA) buy stock X because it is overpriced.B) sell short stock X because it is overpriced.C) sell stock short X because it is underpriced.D) buy stock X because it is underpriced.E) none of the above, as the stock is fairly priced.Answer: B Difficulty: ModerateRationale: 10% < 4% + 1.0(12% - 4%) = 12.0%; therefore, stock is overpriced and should be shorted.57. The risk-free rate is 5 percent. The expected market rate of return is 11 percent. If youexpect stock X with a beta of 2.1 to offer a rate of return of 15 percent, you shouldA) buy stock X because it is overpriced.B) sell short stock X because it is overpriced.C) sell stock short X because it is underpriced.D) buy stock X because it is underpriced.E) none of the above, as the stock is fairly priced.Answer: B Difficulty: ModerateRationale: 15% < 5% + 2.1(11% - 5%) = 17.6%; therefore, stock is overpriced and should be shorted.58. You invest 50% of your money in security A with a beta of 1.6 and the rest of yourmoney in security B with a beta of 0.7. The beta of the resulting portfolio isA) 1.40B) 1.15C) 0.36D) 1.08E) 0.80Answer: B Difficulty: ModerateRationale: 0.5(1.6) + 0.5(0.70) = 1.15.。
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Test 9An elderly carpenter was ready to retire.He told his employer of his plans to__1__the house-building business to live a more__2__life with his wife and__3__his extended family.He would miss the paycheck(工资) each week，but he wanted to retire.They could__4__.The employer was__5__to see his good worker go and asked if he could build just one more house as a personal favor.The carpenter said yes，__6__over time it was easy to see that his heart was not in his work.He used bad workmanship and__7__materials.It was an unfortunate way of__8__a dedicated(献身的) career.When the carpenter finished his work，his employer came to__9__the house.Then he handed the front-door__10__to the carpenter and said，“This is your house...my__11__to you.”The carpenter was shocked!What a__12__！If he had only known he was building his own house，he would have done it all so differently.__13__it is with us.We build our lives，a day at a time，often putting__14__than our best into the building.Then，with a shock，we__15__we have to live in the house we have built.If we could do it over，we would do it much differently.But，you cannot__16__.You are the carpenter，and every day you hammer a nail，place a board，or build a wall.Someone__17__said，“Life is a do-it-yourself project.”Your__18__，and the choices you__19__today，help build the “house”you will live in tomorrow.Therefore，build__20__！1．A.continue B．start C．leave D．find2．A.leisurely B．lonely C．valuable D．useful3．A.support B．share C．enjoy D．care4．A.go off B．get by C．pass on D．work away 5．A.polite B．nervous C．proud D．sorry6．A.but B．while C．which D．before7．A.perfect B．inferior C．superior D．tough8．A.satisfying B．improving C．meeting D．ending9．A.buy B．repair C．inspect D．sell10．A.roof B．window C．key D．design11．A.gift B．promise C．salary D．words12．A.disappointment B．shame C．pleasure D．success 13．A.So B．Yet C．As D．Such14．A.worse B．more C．rather D．less15．A.realize B．explain C．think D．admit16．A.step forward B．go back C．come out D．look around 17．A.never B．again C．once D．nearly18．A.attitude B．experience C．skill D．advantage 19．A.learn B．take C．see D．make20．A.badly B．wisely C．early D．confidentlyYoung people tell me he wants to be a writer.I always encourage such people，but I also explain that there’s a big difference between “being a writer” and writing.In most cases these individuals are dreaming of wealth and fame，not the long hours alone at a typewriter.“You’v e got to want to write，”I say to them，“not want to be a writer”．The reality is that writing is a lonely，private and poor-paying affair.For every writer kissed by fortune there are thousands more whose longing is never rewarded.When I left a 20-year career in the US Coast Guard to become a freelance writer(自由撰稿人)，I had not prospects at all.What I did have was a friend who found me my room in a New York apartment building.It didn’t even matter that it was cold and had no bathroom.I immediately bought a used manual typewriter and felt like a genuine writer.After a year or so，however，I still hadn’t gotten a break and began to doubt myself.It was so hard to sell a story that barely made enough to eat.But I knew I wanted to write.I had dreamed about it for years.I wasn’t going to be one of those people_who_die_wondering.What_if？I would keep putting my dream to the test—even though it meant living with uncertainty and fear of failure.This is the Shadowland of hope，and anyone with a dream must learn to live there.1．The passage is meant to________.A．warn young people of the hardships that a successful writer has to experienceB．advise young people to give up their idea of becoming a professional writerC．show young people it’s unrealistic for a writer to pursue wealth and fameD．encourage young people to pursue a writing career2．What can be concluded from the passage?A．Genuine writers often find their work interesting and rewarding.B．A writer’s success depends on luck rather than on effort.C．Famous writers usually live in poverty and isolation.D．The chances for a writer to become successful are small.3．“...people who die wondering.What if？”(Para.3) refers to “those________”．A．who think too much of the dark side of lifeB．who regret giving up their career halfwayC．who think a lot without making a decisionD．who are full of imagination even upon death4．The underlined word “Shadowland” in the last sentence refers to________.A．the wonderland one often dreams aboutB．the bright future that one is looking forward toC．the state of uncertainty before one’s final goal is reachedD．a world that exists only in one’s imagination1．If he had only known he was building his own house，he would have done it all so differently.(完形填空第五段第二句)如果他只知道那是在盖自己的房子，那时他就做得完全不同了。