09级高频练习题答案

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2009年9月国家公共英语(三级)真题试卷(精选)(题后含答案及解析)

2009年9月国家公共英语（三级）真题试卷（精选）(题后含答案及解析)题型有：1.Many people want to become famous, but don’t know how. Here I’d like to tell about how to become known or get closer to people. There are certain qualities that you have to remember while【C1】______people, be it a friend, a neighbour or anybody【C2】______you. The first thing is to remember their names and birthdays and never【C3】______them if you want to get closer to them, because this is【C4】______you start getting closer to people. You will have to reduce【C5】______about yourself and start listening a lot. One of the important【C6】______which can be used to get closer to people is to listen to them.【C7】______in today’s management studies, listening is a very basic necessity in【C8】______such as business negotiations and international exchanges.【C9】______people to speak about themselves and be【C10】______interested in them. Another quality you will have to【C11】______is to appreciate people because everybody needs appreciation, but do not【C12】______it too far. If you are appreciating, let it be from the【C13】______of your heart. Everybody has got some good qualities or other which can be【C14】______.So appreciate the good qualities. See to it that they don’t feel【C15】______. Always remember to have a smile【C16】______your face whenever you meet people, because people don’t like crying faces. Develop a good【C17】______of humour. Most important of all is to be【C18】______.So by all these you must know the【C19】______to reach people. Try those essentials【C20】______you will see people getting closer to you.1．【C1】A．treatingB．introducingC．handlingD．greeting正确答案：A解析：本题考查对上下文的理解。

09专四真题答案及解析

09专四真题答案及解析自从2009年开始，英语专业四级考试（简称专四）成为中国大陆确定英语专业类毕业生能力的重要考试之一。

专四考试的题型和分值与大学英语四级考试（CET-4）相似，都包括听力、阅读、写作和翻译四个部分，但难度更高。

为了帮助考生更好地备考，本文将为大家提供09年专四考试的题目、答案及解析。

第一部分：听力第一部分为听力部分，共有两篇短对话和短文理解两个部分。

分别针对听力短对话和短文理解部分进行答案解析。

第一节：短对话1. A: Did you remember to buy milk?B: Oh no, I completely forgot. I'll go to the store right now.答案：B解析：根据上下文可知，说话人忘记买牛奶了，现在打算去买。

2. A: Are you going to the party tonight?B: No, I have an important meeting I can't miss.答案：B解析：根据上下文可知，说话人因为有重要的会议不能去参加晚会。

第二节：短文理解3. What did the speaker learn from his experience in Africa?答案：C解析：根据文章内容，讲述者从非洲经历中学到的是人与自然和谐共存的重要性。

第二部分：阅读第二部分为阅读部分，共有两篇文章，分别针对文章1和文章2进行答案解析。

文章1：4. According to the passage, what is the main characteristic of poker?答案：A解析：根据文章第一段“Poker is a family of card games that ..."可知，扑克的主要特点是运气和技巧的结合。

5. What is the passage mainly about?答案：C解析：根据文章内容，文章主要讲述了扑克的起源和发展。

09英语1真题答案及解析

09英语1真题答案及解析在学习英语过程中，做真题是提高英语水平的重要途径之一。

特别是做历年的真题，不仅能够了解考试的题型和难度，还能够发现自己的不足之处，从而有针对性地提高自己的英语能力。

下面，本文将针对09年的英语1真题进行答案及解析，希望对同学们的备考有所帮助。

阅读理解1. A解析：根据第一段最后一句话的“Music and talent shows have always been popular”可知，选项A的“古代文化和当代艺术表演”符合文意。

2. B解析：根据第二段的第一句“Music festivals have been around for hundreds of years, and they are just as popular as ever.”可知，选项B的“音乐节已有数百年的历史，而且人们对它们的热情从未减退”符合文意。

3. A解析：根据第三段的第一句“In conclusion, talent shows and music festivals are two different kinds of entertainment that have a lot in common.”可知，选项A的“两者有相似之处”符合文意。

4. C解析：根据第四段的第一句“The first and most obvious similarity is that both events revolve around music.”可知，选项C的“两个活动都与音乐有关”符合文意。

5. C解析：根据最后一段的第一句“The main difference between the two is the way in whic h they showcase talent.”可知，选项C的“两者的主要区别在于展示才华的方式”符合文意。

完形填空1. D解析：根据第一段的“He ________ a lot of money and time going to the local movie theater.”以及下一段的“And every Saturday night, he _________ to a different movie at the theater.”可知，选项D的“spent”和“went”符合文意。

2009年英语真题+答案解析

2009年英语真题+答案解析河南省2019年普通⾼等学校选拔优秀专科毕业⽣进⼊本科阶段学习考试公共英语Part Ⅰ Vocabulary and Structure (1×40 points)Directions: There are 40 incomplete sentences in this part. For each sentence there are four choices marked A, B, C and D. Choose the ONE that best completes the sentence, and then you should mark the corresponding letter on the Answer Sheet.1. Julie spent one month________her term paper on Chinese poems.A. to writeB. and wroteC. writtenD. writing2. I was so________ the night before my examination that I could not sleep.A. WorryingB. tiredC. happyD. nervous3. Whether you learn or not is entirely________you.A. up toB. as toC. about toD. due to4. I finally________ to study much harder in the future.A. preparedB. made up my mindC. worked outD. made out5. The old couple decided to________ a boy though they had three of their own.A. adaptB. bringC. receiveD.adopt6. The teacher insisted that we ________our homework before 9 o’clock.A. FinishedD. was finishing7. The little girl showed the policeman the corner________ she was knocked off her bike.A. AndB. whichC. thatD. where8. The garden requires________.A. WateringB. being wateredC. to waterD. having watered9. Is this the house________ Shakespeare was born?A. whichB. in thatC. in whichD. at which10. ________leaves the room last ought to turn off the lights.A. AnyoneB. The personC. WhoeverD. Who11. The population of the world is growing at a dangerous________.A. PaceB. measureC. progressD. rate12. You________ not have seen her yesterday, for she was abroad.A. mustB. shouldC. couldD. would13. Alice trusts you; only you can ________her to give up the foolish idea.A. SuggestD. persuade14. When Mary paid the bill she was given a ______ for her money.A. chequeB. receiptC. ticketD. label15. It was at the music hall ________we met each other for the first time.A. WhenB. whereC. whichD. that16. They found the lecture hard________.A. to understandB. to be understandC. being understoodD. understood17. It is no use ________me not to worry about his injury.A. for you to tellB. your tellingC. you tellD. having told18. You must walk slowly if you want the children to________ you.A. put up withB. come up withC. keep up withD. go on with19. Little John caught a(n)fish________ this morning.A. aliveB. aloneC. lonelyD. living20. ________finished his work, he had to stay at home at the weekend.A. Having not beenC. Not havingD. Having not21. I took the medicine, but it didn’t have any ________on me.A. effectB. relationC. touchD. affect22. The age of the students in this class ________from eighteen to twenty.A. ChangesB. rangesC. altersD. limits23. It would be________a risk to let the child go to school by himself.A. followingB. passingC. runningD. carrying24. He________a knowledge of this language by careful study.A. acquiredB. requiredC. inquiredD. requested25. We develop trade with that company for our shared________.A. honourB. rewardC. benefitD. prize26. If you take this medicine twice a day, it should ______ your cold.A. HealB. cureC. treatD. recover27. We object______ punishing a whole group for one person’s fault.A. againstC. toD. for28. She has fallen in love with Jack,______I find hard to imagine.A. whoB. thatC. whomD. which29. —Are you going downtown this afternoon?—I am going to have these letters______ .A. mailedB. mailC. to mailD. mailing30. ______, everything would have been all right.A. He had been hereB. Been here he hadC. Here he had beenD. Had he been here31.______ , water resources have been severely wasted or polluted.A. They are scarceB. Scarce they areC. Scarce as they areD. As scarce they are32. ______from space, our earth, with water covering 70% of its surface, appears as a “blue planet”.A. SeenB. SeeingC. To be seenD. Having seen33. He’ll never succeed in passing the CET6,______hard he tries.A. HoweverB. whateverC. despiteD. though34. Her face is ______to me, but I can’t remember where I saw her.B. friendlyC. alikeD. familiar35. You’ll have to book the tickets for the holiday in______.A. frontB. advanceC. aheadD. forward36. Children who are overprotected by their parents may become.______A. hurtB. spoiledC. damagedD. harmed37. Kids are very curious______.A. at heartB. in personC. by natureD. on purpose38. He has made another wonderful discovery, ______of great importance to science and man.A. which I think isB. which I think it isC. of which I think it isD. I think which is39. My daughter and I took a______tour around New York City.A. two dayB. two day’sC. two daysD. two-day40. Your brother is very tall. What is his ______ exact?A. sizeB. lengthC. heightD. breadthPart Ⅱ Reading Comprehension (2×20 points)letter on the Answer Sheet.Passage 1A wealthy Persian Prince loved good stories. The older he grew，the fonder he became of them. But he always regretted they had to have an end. So he decided to give half his wealth and his beautiful daughter to the man who could tell him a story without an end. Anybody who failed would be sent to prison for life. The risk was so great that nobody came to the palace to tell the Prince a story for a whole year. Then one day, a tall, handsome young man came and said he wanted to tell a story that would go on forever. The Prince agreed but warned him what would happen if he failed. “The risk is worth your fair daughter,” the young man replied poetically (得体地). He then began this well known story:“Once upon a time there was a certain King who feared famine. So he ordered his men to build an enormous storehouse, which he filled with corn. Then, when it was up, made water proof and fire proof, the King felt happy. But one day he noticed a small hole in the roof and as he looked at it, a locust came out with a grain of corn. A minute later, another locust came out with another grain of corn. Then a third locust with another grain of corn. Then a fourth locust, flying at great speed, pushed through the hole and came out with two grains of corn. Then a fifth locustcame and...”“Stop,” shouted the Prince. “I can’t,” answered the young man. “I must go on unti l I tell you what happened to each grain of the corn.” “But that will go on forever.” The Prince protested. “Exactly,” the young man replied, and he smiled as he turned towards the Prince’s beautiful young daughter.41. The Prince always felt regretted about story because______ .A. he had too much wealthB. there was a terrible famineC. all stories have endsD. there was no story teller42. The young man risked to tell an endless story to the Prince for______ .A. a great sum of moneyB. the Prince’s beautiful daughterC. showing his braveryD. Both A and C43. The young man would be sent to prison ______ if he failed to tell a story without an end.A. foreverB. for some timeC. for a whileD. for a year44. In order to prevent famine, the King asked to build______ .A. a huge storehouseB. a large farmC. a beautiful palaceD. a waterproof kitchen45. The thing the king noticed first in the roof was______ .A. a loafC. a grain of cornD. a locustPassage 2Packaging is an important form of advertising. A package can sometimes motivate someone to buy a product. For example, a small child might ask for a breakfast food that comes in a box with a picture of a TV character. The child is more interested in the picture than in the breakfast food. Pictures for children to color or cut out, games printed on a package, or small gifts inside a box also motivate many children to buy products or to ask their parents for them.Some packages suggest that a buyer will get something for nothing. Food products sold in reusable containers are examples of this. Although a similar product in a plain container might cost less, people often prefer to buy the product in a reusable glass or dish, because they believe thecontainer is free. However, the cost of the container is added to the cost of the product.The size of a package also motivates a buyer. Maybe the package has “Economy Size” printed on it. This suggests that the large size has the most product for the least money. But that is not always true. To find out, a buyer has to know how the product is sold and the price of the basic unit.The information on the package should provide some answers. But the important thing for any buyer to remember is that a package is often an advertisement. The words and pictures do not tell the whole story. Only the product inside can do that.46. Which of the following statements could best summarize the main idea of the passage?A. Children are interested in some packages of products.B. Package is one of the important ways of advertising.C. People prefer to buy the products in plain containers.D. The size of a package usually motivates a buyer.47. The phrase “a buyer will get something for nothing” ( Line 1, Para. 2 ) probably means ______.A. a buyer will get something free of chargeB. a buyer will get something uselessC. a buyer will get something usefulD. nothing is worth buying48. Which of the following statements is NOT true according to the passage?A. Sometimes people are easily motivated by packages.B. Small children sometimes are more interested in games printed on a package than theproduct itself.C. A product in a reusable container must be cheaper than a similar product in a plain container.D. “Economy Size” doesn’t always suggest that people can buy the most product for the leastmoney.49. What does the word “ them ” ( Line 5, Para. 1 ) refer to?A. Small gifts.B. Pictures.C. Games.A. Package is just an advertisement.B. Buyers shouldn’t believe the information on the package too much.C. The package has nothing to do at all with the product.D. Buyers can always find answers in the information on the package.Passage 3For any Englishman, th ere can never be any discussion as to who is the world’s greatest poet and greatest dramatist. Only one name can possibly suggest itself to him: that of William Shakespeare. Every Englishman has some knowledge, however slight, of the works of our greatest writer. All of us use words, phrases and quotations from Shakespeare’s writings that have become part of the common property of English speaking people. Most of the time we are probably unaware of the source of the words we use, rather like the old lady who was taken to see a performance of HAMLET and complained that “it was full of well known proverbs and quotations.”Shakespeare, more perhaps than any other writer, made full use of the great resources of the English language. Most of us use about five thousand words in our normal employment of English; Shakespeare in his works used about twenty five thousand. There is probably no better way for a foreigner to appreciate the richness and variety of the English language than by studying the various ways in which Shakespeare used it. Such a study is well worth the effort (it is not, of course, recommended to beginners) even though some aspects of English usage, and the meaning of many words, have changed since Shakespeare’s day.51. English people______.A. h ave never discussed who is the world’s greatest poet and greatest dramatistB. never discuss about the world’s greatest poets or dramatistsC. are sure who is the world’s greatest poet and greatest dramatistD. do not care who is the world’s greatest poet and greatest dramatist52. Every Englishman knows______.A. more or less about ShakespeareB. Shakespeare, but only slightlyC. all the Shakespeare’s writingsD. only the name of the greatest English writer53. Which of the following is TRUE?A. We use all the words, phrases and quotations from Shakespeare’s writings.B. Shakespeare’s writings have become the property of those who are learning to speak English.C. It is likely to be true that people often do not know the origin of the words they use.D. All the words people use are taken from Shakespeare’s writings.54. “HAMLET” is______ .A. a play written by ShakespeareB. a play recommended by ShakespeareC. a play appreciated by ShakespeareD. a play people have been complaining about55. It is worthwhile to study the various ways in which Shakespeare used English because______ .C. English words are now being used in the same way as in Shakespeare’s daysD. English words are now the same in various ways as in Shakespeare’s daysPassage 4Most cities and/or states in the U.S. collect a sales tax on almost everything you buy. You must ask when you move into a new community how much the local sales tax is, and what items are and are not taxable. Both taxable items and the amount of tax vary considerably from place to place, from one or two percent in some places up to eight or ten in others. The New York City sales tax, for example, is currently 8%, so if you buy a pair of ＄40 shoes you will actually have to pay ＄43.20. This makes paying and getting correct change much more difficult (not to mention making everything more expensive).Another thing that makes money changes more complicated is tipping. The Chinese people have happily put an end to tipping, but Westerners are still plagued(遭受折磨) with this indignity. Waiters and waitresses, cab drivers, hotel bellboys, barbers and hairdressers and all sorts of otherpeople must be tipped. Their employers give them low wages because it is expected that you, the customer, will make up the difference. If you don’t, the service person can’t earn a living. Tipping also varies from place to place, generally in the area of 15% of your bill (before taxes), but again you should ask local residents whom to tip and how much.There is another kind of tipping as well. You are generally expected to give something (either cash or a bottle of whisky) to the mailman at Christmas time. You should discuss this also with neighbors and friends.56. The main idea of this passage is______ .A. shopping and tippingB. sales and shoppingC. sales taxes and tippingD. sales taxes and people57. According to the passage, if you buy a pair of ＄50 shoes in the New York City, you pay extra ______as sales tax.A. ＄4.5B. ＄4C. ＄5D. ＄5.558. Usually, cab drivers______ .A. get high wages from the employerB. get great benefits from the employerC. get low wages from the employerD. get prize from the employer59. According to the passage, which of the following statements is true?A. The Chinese people have to pay tips in western countries.B. The Westerners don’t have to pay high tips in their own country.C. Barbers, hotel bellboys and all sorts of other people can earn a living if they are not tipped.D. Tipping varies from place to place, generally in the area of 20% of your bill.60. Usually, taxable items and the amount of tax______.A. have no difference from place to place in the U.S.C. have been put an end in the U.S.D. vary from place to place in the U.S.Part Ⅲ Cloze (1×20 points)Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A, B,C and D. You should choose the ONE that best fits into the passage and mark the corresponding letter on the Answer Sheet.Most Americans don’t like to get advice from members of their family. When they need advice, they don’t usually61 people they know. 62 , many Americans write letters to newspapers and magazines which give advice 63 many different subjects, including family problem, sex, the use 64 the language, health, cooking, childcare, clothes, and how to buy a house or a car.65 newspapers regularly print letters 66 readers with problems. Along 67 the letters there are answers written 68 people who are supposed to know how to 69 such problems. Some of these writers are doctors; 70 are lawyers or educators. But two of the most famous writers of advice 71 women without special training 72 this kind of work. One of them answers letters 73 to “Dear Abby”. The other is addressed74 “Dear Ann Landers”. Experience is their preparation for 75 advice.There is one writer who has not lived long 76 to have much experience. She is a girl named Angel Cavaliere, who started writing 77 for newspaper readers 78 the age of ten. Her advice to young readers now 79 regularly in the Philadelphia Bulletin in a column 80 DEAR ANGEL.61. A. talk B. ask C. tell D. speak62. A. Because B. Instead C. When D. As63. A. for B. in C. on D. with64. A. with B. on C. to D. of65. A. Most B. These C. Those D. The66. A. from B. for C. to D. about67. A. in B. with C. on D. for68. A. to B. for C. about D. by69. A. make B. overcome C. beat D. solve70. A. some B. many C. others D. those71. A. is B. are C. were D. was72. A. for B. on C. at D. by73. A. made B. addressed C. written D. sent74. A. with B. for C. to D. by75. A. producing B. giving C. making D. sending76. A. time B. yet C. way D. enough77. A. advise B. answers C. advice D. problems78. A. at B. on C. in D. about79. A. gives B. sends C. appears D. writes80. A. called B. arranged C. reached D. claimedPart Ⅳ Word Formation (1×10 points)Directions: There are 10 incomplete statements in this part. You should fill in each blank with the proper form of the given word, and write your answer on the Answer Sheet.81.They are not________with the performance of the students. (satisfy)82.There is________of religion in our country. (free)83.The police were delayed by the________of information about the crime. (absent)84.It is________that the company will make a big profit in the export trade. (like)85.Reading English novels can ________your vocabulary. (large)86.When college students are caught________in exam, they can be kicked out of school. (cheat)87.Following the________settlement of the strike, the train service is now back to normal. (success)88.________more time, the experts will be able to find out the cause of this disease finally. (give)89.It is essential that we________informed of your plans in advance. (be)90.The news that her son failed to pass the exam was so________that she hardly believe it. (disappoint)Part Ⅴ Translation (2×10 points)Section ADirections：There are 5 sentences in this section. Please translate them from Chinese into English, and write the answer on the Answer Sheet.91.他们已经⼗年没见⾯了。

09英语二调参考答案

英语参考答案一、词汇和语法知识（共20小题，每小题1分，共20分）1-10 BDADD CDBCC11-20 BCBBB CBDCA二、完形填空（共20小题，每小题0.5分，共计10分）21-30 ACDBA CBADC31-40 BADBC ACCBA三、阅读理解（共20小题，每小题2分，共计40分）41-50 CBABC CDACB51-60 DCDCD ABDDB四、单词拼写（共10小题，每小题1分，共计10分）61. physically 62. across 63. While 64. More 65. shocking/surprising66. worthwhile 67. nineties 68. therefore 69. caught 70. minutes’五、翻译（共5小题，每小题2分，共计10分）71. Nothing will make me change my mind.72. In front of the house was a tall tree.73. We should do as much as possible to protect our natural environment.74. Nowadays many young people think it necessary and important to learn English well.75. What fun it is to have sports after a day’s study at school!六、书面表达（满分10分）We all know pollution does great harm to people’s health. At present, water, air, soil in many places are badly polluted. Very loud noise hurt people’s hearing. Now, government has taken actions to stop pollution. But the problems are very serious. We should do our best to do something to stop pollution so that we can save our earth.。

09年专四真题及答案

2009年专四真题及答案Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be done at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be done at normal speed again and during this time you should check your work. You will then be given 2 minutes to check through your work once more.Please write the whole passage on ANSWER SHEET ONE.PART II LISTENING COMPREHENSION [20 MIN]In Sections A B and C you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. Mark the correct answer to each question on Answer Sheet Two.SECTION A CONVERSATIONSIn this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow.Questions 1 to 3 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now, listen to the conversation.1. Mark is unhappy because ofA. his Chemistry homework.B. a girl in his class.C. Linda‟s words.D. Friday night‟s party.2. Which of the following is CORRECT?A. Linda is Jane‟s friend.B. Mark is Jane‟s boyfriend.C. John is Jane‟s boyfriend.D. Mark and John are good friends.3. Did Mark eventually take Linda‟s advice?A. No.B. Partly.C. Completely.D. Not mentioned.Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions. Now, listen to the conversation.4. About the scratch on the product, the shop assistant thinks thatA. the customer made it himself.B. there was definitely not one then.C. the customer should have checked.D. the customer was making trouble.5. The customer was ______ when told he might not have worn the headphones properly.A. annoyedB. surprisedC. indifferentD. worried6. How many complaints did the customer make about the product altogether?A. Five.B. Four.C. Three.D. Two.7. The shop could exchange the product if the customerA. makes no more complaints.B. can produce the receipt.C. is still unhappy with it.D. brings it back within a week.Questions 8 to 10 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now, listen to the conversation.8. Joe Smith telephoned Victoria forA. the menu.B. the place.C. the reception.D. the campaign.9. When will the lunch be held?A. Friday next week.B. Thursday next week.C. April 30th.D. This week.10. All the following information is new to Victoria EXCEPTA. how many people to attend it.B. why to hold it.C. where to hold it.D. what to cook.SECTION B PASSAGESIn this section, you will hear several passages. Listen to the passages carefully and thenanswer the questions that follow.Questions 11 to 13 are based on the following passage. ,4t the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage.11. People choose London for post-Christmas shopping becauseA. shops open early in the morning.B. shops stay open for longer hours.C. they can buy really cheap things.D. they can shop with their friends.12. We learn from the passage thatA. people are very keen on sales.B. post-Christmas sales start at 3:30am.C. post-Christmas sales last for a day.D. sales include only a few items.13. Which of the following is NOT mentioned in the passage?A. Some people buy Christmas presents in the sales.B. Some people shop online during the sales.C. Some people buy presents for next Christmas.D. Online retailers offer better post-Christmas sales.Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now, listen to the passage.14. Ballroom dancing used to be associated withA. TV shows.B. old people.C. celebrities.D. professional dancers.15. According to the passage, recent popularity of ballroom dancing is the result ofA. the participation of celebrities.B. the designing of colourful costumes.C. the benefits it brings.D. a TV programme.16. Which of the following is NOT mentioned about the TV show?A. Performers have to be formally dressed on the show.B. Each professional dancer dances with a celebrity.C. People on the show perform a different dance every week.D. The show runs for about four months.17. According to the passage, the TV show has the greatest impact onA. old people.B. middle-aged people.C. kids and young people.D. all of the above.Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage.18. According to New Zealand‟s rules about naming children, which of the following names isNOT acceptable?A. Spiderman.B. Gandalf.C. 2win.D. Arsenal.19. According to the passage, unusual names come fromA. popular culture.B. parents‟ invention.C. sports.D. all of the above.20. All of the following countries have strict rules about naming children EXCEPTA. Algeria.B. Germany.C. Japan.D. Argentina.SECTION C NEWS BROADCASTIn this section, you will hear several news items. Listen to them carefully and then answer the questions that follow.Questions 21 to 23 are based on the following news. At the end of the news item, you will be given 15 seconds to answer the questions. Now. listen to the news.21. Why were the fishing crew stranded on Oct. 10th?A. They went to a remote area.B. Their fishing boats collided.C. They tried to repair their boats.D. They decided to stay in the boats.22. How did they survive during those three months?A. On supplies they brought with them.B. On supplies sent to them by rescue teams.C. On supplies left at the military base.D. Not mentioned in the passage.23. How were the crew rescued eventually?A. By helicopter.B. By boat.C. By radio contact.D. By a search team.Questions 24 and 25 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news.24. Juan Carlos has been King of SpainA. since 1981.B. for 32 years.C. for 70 years.D. for 17 years.25. What is the news item mainly about?A. The King‟s birthday.B. The stability of the monarchy.C. Criticism from both the left and the right.D. The King‟s public defence of his reign.Questions 26 and27 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news.26. The three suicide bombings occurred inA. November and December.B. October and November.C. November.D. December.27. Did people die in the bombings?A. No one died in the bombings.B. Yes. In one of the bombings.C. Yes. In two of the bombings.D. Yes. In all the bombings.Questions 28 to 30 are based on the following news. At the end of the news item, you will be given 15 seconds to answer the questions. Now, listen to the news.28. What is the purpose of the national survey?A. To collect data on sources of pollution.B. To identify pollution in rivers and lakes.C. To help control environmental pollution.D. To help control industrial wastes.29. According to the news item, efforts of environmental protection are especially affected byA. lack of technology.B. rapid economic growth.C. unknown pollution sources.D. shortage of manpower.30. Which of the following details is CORRECT according to the news item?A. Census offices are set up by government departments.B. A main centre receives reports from provinces.C. A database is set up for each province.D. Data will be reviewed and analyzed in mid-2009.PART III CLOZE [15 MIN]Decide which of the choices given below would best complete the passage if inserted in the corresponding blanks. Mark the best choice for each blank on Answer Sheet Two.Scientists around the world are racing to learn how to rapidly diagnose, treat and stop the spread of a new, deadly disease. SARS -- Severe Acute Respiratory Syndrome --- was (31) ____ for the first time in February 2003 in Hanoi, (32) _____ since then has infected more than 1,600 people in 15 countries, killing 63. At this (33) _____, there are more questions than answers surrounding the disease.Symptoms start (34) _____ a fever over 100.4 degrees F, chills, headache or body (35)____. Within a week, the patient has a dry cough, which might (36) _____ to shortness of breath. In 10% to 20% of cases, patients require (37)_____ ventilation to breathe. About 3.5% die from the disease. Symptoms (38)____ begin in two to seven days, but some reports suggest it (39) ____ take as long as 10 days. Scientists are close to (40) ____ a lab test to diagnose SARS. In the meantime, it is diagnosed by its symptoms. There is no evidence (41)____ antibiotics or anti-viral medicines help, (42) _____ doctors can offer only supportive care. Patients with SARS are kept in isolation to reduce the risk of(43) ____ Scientists aren‟t sure yet, but some researchers think it‟s a (44) ____ discovered coronavirus, the family of viruses that cause some common colds.Most cases appear to have been passed (45) ____ droplets expelled when infected patients cough or sneeze. Family members of infected people and medical workers who care (46) ____ them have been most likely to (47) ____ the illness. But recent developments in Hong Kong suggest that the (48) ____ might spread through air, or that the virus might (49) ____ for two to three hours on doorknobs or other (50)____. Health experts say it is unlikely, though, that sharing an elevator briefly with an infected person would be enough to pass the virus.(31) A. detected B. caught C. disclosed D. revealed(32) A. but B. and C. or D. yet(33) A. time B. point C. aspect D. instance(34) A. from B. over C. upon D. with(35) A. hurt B. sore C. aches D. feelings(36) A. process B. advance C. progress D. convert(37) A. automatic B. artificial C. mechanical D. controlled(38) A. regularly B. ordinarily C. traditionally D. generally(39) A. will B. might C. should D. must(40) A. cultivating B. fostering C. developing D. designing(41) A. which B. that C. whether D. what(42) A. so B. but C. still D. yet(43) A. communication B. transportation C. transformation D. transmission(44) A. lately B. newborn C. newly D. renewed(45) A. under B. through C. beneath D. from(46) A. for B. over C. after D. about(47) A. acquire B. receive C. obtain D. contract(48) A. ailment B. ill-health C. disease D. infection(49) A. continue B. linger C. delay D. persist(50) A. exteriors B. outside C. surfaces D. coveringsPART IV GRAMMAR & VOCABULARY [15 MIN]There are thirty sentences in this section. Beneath each sentence there are four words or phrases marked A, B, C and D. Choose one word or phrase that best completes the sentence. Mark your answers on Answer Sheet Two.51. What a nice day! How about the three of us _____ a walk in the park nearby?A. to takeB. takeC. takingD. to be taking52. If there were no subjunctive mood, English _____ much easier to learn.A. could have beenB. would‟beC. will beD. would have been53. She _____ fifty or so when I first met her at a conference.A. had beenB. must beC. has beenD. must have been54. _____ the boss says, it is unreasonable to ask me to work overtime without pay.A. WhateverB. WheneverC. WhicheverD. However55. A new laptop costs about _____ of a second-hand one.A. the price of three timesB. three times the priceC. as much as the three times priceD. three times more than the price56. I was very interested in _____ she told me.A. all thatB. all whichC. all whatD. that57. We consider ______ he should have left without telling anyone beforehand.A. strange whyB. it strange whatC. it strange thatD. that strange58. It is going to be fine tomorrow. _______.A. So is it.B. So it is.C. So it does.D. So does it.59. Little _____ about her own safety, though she herself was in great danger.A. she caredB. she may careC. may she careD. did she care60. The couple had no sooner got to the station _____ the coach left.A. whenB. asC. untilD. than61. Aren‟t you tired? I ____ you had done enough for today.A. should have thoughtB. must have thoughtC. might have thoughtD. could have thought62. "It seems that she was there at the conference." The sentence means thatA. she seems to be there at the conference.B. she seemed to be there at the conference.C. she seems to have been there at the conference.D. she seemed to being there at the conference.63. Which of the following adverbs can NOT be used to complete " _____ everybody came"?A. NearlyB. QuiteC. PracticallyD. Almost64. In "How much do you think he earns?" how much is ______ of the sentence.A. the subjectB. the adverbialC. the objectD. the complement65. "The man preparing the document s is the firm‟s lawyer" has all the following possible meanings EXCEPTA. the man who has prepared the documents...B. the man who has been preparing the documents...C. the man who is preparing the documents...D. the man who willprepare the documents...66. During the TV interview, the singer announced that he was going to _____ his new album soon.A. releaseB. renewC. relieveD. rehearse67. Afterworking for the firm for ten years, he finally _____ the rank of deputy director.A. achievedB. approachedC. attainedD. acquired68. Winter is the _____ season at most hotels in this seaside town, because very few tourists come to stay.A. slowB. slackC. lowD. quiet69. Come on, Jack, tell me the story. Don‟t keep me in ______.A. suspenseB. suspendingC. suspensionD. suspender70. The football match was _____ because of the heavy rain.A. called overB. called upC. called outD. called off71. We had a good time there, and the food was plentiful and _____.A. conduciveB. wholesomeC. helpfulD. appreciative72. It was strange that she would _____ such an absurd idea.A. allowB. stickC. takeD. entertain73. The scientists have made an _____ study of the viruses that cause the disease.A. exhaustedB. exhaustingC. exhaustiveD. exhaustion74. Do you own your apartment or are you a ______ ?A. tenantB. customerC. clientD. proprietor75. Representatives from the companies indicated that they should go on working together in _____.A. unityB. entityC. partnersD. partnership76. We all know that Mary has had a strict _____.A. growthB. upbringingC. developmentD. cultivation77. The drink was packaged in champagne bottles and was being _____ as the real stuff.A. passed outB. passed byC. passed overD. passed off78. Last Sunday she came to visit us out of the blue. The italicized phrase meansA. unexpectedlyB. unhappilyC. untidilyD. unofficially79. The person he interviewed was _____ his former schoolmate.A. no other thanB. no more thanC. none other thanD. none the less80. The young employee has a(n)______ quality - he is totally honest.A. respectableB. admirableC. decentD. approachablePART V READING COMPREHENSION [25 MIN]In this section there are four passages followed by questions or unfinished statements, each with four suggested answers marked A, B, C and D. Choose the one that you think is the best answer. Mark your answers on Answer Sheet Two.TEXT ADo you realize that every time you take a step, the bones in your hip are subjected to forces between four and five times your body weight? When you are running, this force is increased further still. What happens if through disease a hip-joint ceases to be able to resist such forces? For many years hip-joints and other body joints have been replaceable either partially or completely. It is after all a simple ball and socket joint; it has certain loads imposed on it; it needs reliability over a defined life; it must contain materials suitable for the working environment. Any engineer will recognize these as characteristic of a typical engineering problem, which doctors and engineers have worked together to solve, in order to bring a fresh lease of life to people who would otherwise be disabled.This typifies the way in which engineers work to help people and create a better quality of life. The fact that this country has the most efficient agricultural industry in the world is another good example. Mechanical engineers have worked with farmers and biologists to produce fertilizers, machinery and harvesting systems. This team effort has now produced crops uniformly waist high or less so that they are better suited to mechanical harvesting. Similar advances with other crops have released people from hard and boring jobs for more creative work, whilst machines harvest crops more efficiently with less waste. Providing more food for the rapidly increasing population is yet another role for the mechanical engineer.81. According to the passage, when would most weight be imposed on hip-joints?A. When one is walking.B. When one is running.C. When one is standing.D. When one is lying down.82. Engineers regard the replacement of hip-joints as a(n) ____ Problem.A. mechanicalB. medicalC. healthD. agricultural83. According to the passage, how do engineers contribute to increasing efficiency of theagricultural industry?A. By working with farmers.B. By working in teams.C. By growing crops of the same height.D. By making agricultural machinery.84. According to the context, "This team effort‟" in Paragraph Two refers toA. mechanical engineers.B. doctors and engineers.C. biologists, doctors and farmers.D. farmers, biologists and engineers.TEXT BNowadays, a cellphone service is available to everyone, everywhere. Probably thousands of people have already been using it, but I just discovered it, so I‟m going to claim it and also name it: Fake Foning.The technology has been working well for me at the office, but there are infinite applications. Virtually in any public space.Say you work at a big university with lots of talky faculty members buzzing about. Now, say you need to use the restroom. The trip down the hall will take approximately one hour, because a person can‟t walk into those talky people without getting pulled aside for a question, a bit of gossip, a new read on a certain line of Paradise Lost.So, a cellphone. Any cellphone. Just pick it up. Don‟t dial. Just hold that phone to your face and start talking. Walk confidently down the hall engaged in fake conversation, making sure to tailor both the topic and content to the person standing before you whom you are trying to evade.For standard colleague avoidance, I suggest fake chatting about fake business:"Yes, I‟m glad you called, because we really need to hammer out the details. What‟s that? Yes,I read Page 12, but if you look at the bottom of 4, I think you can see the problem begins right there."Be animated. Be engaged in your fake fone conversation. Make eye contact with the people passing, nod to them, gesture keen interest in talking to them at a later time, point to your phone, shrug and move on.Shoppers should consider fake foning anytime they spot a talky neighbor in the produce department pinching (用手捏) unripe peaches. Without your phone at your face, you‟d be in for a 20-minute speech on how terrible the world is.One important caution about fake foning. The other day I was fake foning my way past a colleague, and he was actually following me to get my attention. I knew he wanted to ask about a project I had not yet finished. I was trying to buy myself some time, so I continued fake foning with my doctor. "So I don‟t need the operation? Oh, doctor, that is the best news."And then: Brrrrrrng! Brrrrrmg! Brrrrrmg! My phone started ringing, right there while it was planted on my face. My colleague looked at me, and I at him, and naturally I gasped. "What is the matter with this thing?" I said, pulling the phone away to look at it, and then putting it back to my ear."Hello? Are you still there?"Oops.85. Which of the following statements is INCORRECT?A. Cellphone service is popular among people.B. Cellphone has much use in office.C. Fake foning is a new cellphone service.D. Fake foning is a new discovery.86. What is fake foning?A. A strategy to avoid people.B. A device newly produced.C. A service provided everywhere.D. A skill of communication.87. In the au thor‟s opinion, in order to make fake foning look real one has toA. talk about interesting matters.B. behave politely to people passing by.C. hold the phone while walking.D. appear absorbed in conversation.88. What does the last example show?A. One effective way is to fake fone one‟s doctor.B. One has to be careful while fake foning.C. Fake foning may not deceive people.D. Fake foning is always quite successful.89. After his phone suddenly began ringing, the authorA. immediately started talking to the caller.B. immediately started talking to his colleague.C. put the phone away and stopped talking.D. continued with his fake conversation.90. What is the tone of the passage?A. Critical.B. Humorous.C. Serious.D. Unclear.TEXT CIt was late in the afternoon, and I was putting the final touch on a piece of writing that I was feeling pretty good about. I wanted to save it, but my cursor had frozen. I tried to shut the computer down, and it seized up altogether. Unsure of what else todo, I yanked (用力猛拉) the battery out.Unfortunately, Windows had been in the midst of a delicate and crucial undertaking. The next morning, when I turned my computer back on, it informed me that a file had been corrupted and Windows would not load. Then, it offered to repair itself by using the Windows Setup CD.I opened the special drawer where I keep CDs. But no Windows CD in there. I was forced to call the computer company‟s Global Support Centre. My call was answered by a woman in some unnamed, far-off land. I find it annoying to make small talk with someone when I don‟t know what continent they‟re standing on. Suppose I were to comment on the beautiful weather we‟ve been having when there was a monsoon at the other end of the phone? So I got right to the point."My computer is telling me a file is corrupted and it wants to fix itself, but I don‟t have theWindows Setup CD.""So you‟re having a problem with your Windows Setup CD." She has apparently been dozing and, having come to just as the sentence ended, was attempting to cover for her inattention.It quickly became clear that the woman was not a computer technician. Her job was to serve as a gatekeeper, a human shield for the technicians. Her sole duty, as far as I could tell, was to raise global stress levels.To make me disappear, the woman gave me the phone number for Windows‟ creator, Microsoft. This is like giving someone the phone number for, I don‟t know, North America. Besides, the CD worked; I just didn‟t have it. No matter how many times I r epeated my story, we came back to the same place. She was calm and resolutely polite.When my voice hit a certain decibel (分贝), I was passed along, like a hot, irritable potato, to a technician."You don‟t have the Windows Setup CD, ma‟am, because you don‟t need it," he explained cheerfully."Windows came preinstalled on your computer!""But I do need it.""Yes, but you don‟t have it." We went on like this for a while. Finally, he offered to walk me through the use of a different CD, one that would erase my entire system. "Of course, you‟d lose all your e-mail, your documents, your photos." It was like offering to drop a safe on my head to cure my headache. "You might be able to recover them, but it would be expensive." He sounded delighted. "A nd it‟s not covered by the warranty (产品保证书)!" The safe began to seem like a good idea, provided it was full.I hung up the phone and drove my computer to a small, friendly repair place I‟d heard about. A smart, helpful man dug out a Windows CD and told m e it wouldn‟t be a problem. An hour later, he called to let me know it was ready. I thanked him, and we chatted about the weather, which was the same outside my window as it was outside his.91. Why did the author shut down her computer abruptly?A. She had saved what she had written.B. She couldn‟t move the cursor.C. The computer refused to work.D. The computer offered to repair itself.92. Which of the following is the author‟s opinion about the woman at the Global Support Centre?A. She sounded helpful and knowledgeable.B. She was there to make callers frustrated.C. She was able to solve her computer problem.D. She was quick to pass her along to a technician.93. According to the passage, the solution offered by the technician wasA. effective.B. economical.C. unpractical.D. unacceptable.94. "It was like offering to drop a safe on my head to cure my headache" in the last but one paragraph means thatA. the technician‟s proposal would make things even worse.B. the te chnician‟s proposal could eventually solve the problem.C. files stored on her computer were like a safe.D. erasing the entire system was like curing a headache.95. It can be inferred from the passage that the differences between the Global Support Centre and the local repair shop lie in all the following EXCEPTA. efficiency.B. location.C. setup CDs.D. attitude.TEXT DNot long ago, a mysterious Christmas card dropped through our mail slot. The envelope was addressed to a man named Raoul, who, I was relatively certain, did not live with us. The envelope wasn‟t sealed, so I opened it. The inside of the card was blank. Ed, my husband, explained that the card was both from and to the newspaper deliveryman. His name was apparently Raoul, and Raoul wanted a holiday tip. We were meant to put a check inside the card and then drop the envelope in the mail. When your services are rendered at 4 a.m., you can‟t simply hang around, like a hotel bellboy expecting a tip. You have to be direct.So I wrote a nice holiday greeting to this man who, in my imagination, fires The New York Times from his bike aimed at our front door, causing more noise with mere newsprint than mostpeople manage with sophisticated black market fireworks.With a start, I realized that perhaps the reason for the 4 a.m. wake-up noise was not ordinary rudeness but carefully executed spite: I had not tipped Raoul in Christmases past. I honestly hadn‟t realized I was supposed to. This was the first time he‟d used the card tactic. So I got out my checkbook. Somewhere along the line, holiday tipping went from an optional thank-you for a year of services to a Mafia-style protection racket (收取保护费的黑社会组织).Several days later, I was bringing our garbage bins back from the curb when I noticed an envelope taped to one of the lids. The outside of the envelope said MICKEY. It had to be another tip request, this time from our garbage collector. Unlike Raoul, Mickey hadn‟t enclosed his own Christmas card from me. In a way, I appreciate d the directness. "I know you don‟t care how merry my Christmas is, and that‟s fine," the gesture said. "I want $30, or I‟ll ‟forget‟ to empty your garbage bin some hot summer day."I put a check in the envelope and taped it back to the bin. The next morning, Ed noticed that the envelope was gone, though the trash hadn‟t yet been picked up: "Someone stole Mickey‟s tip!" Ed was quite certain. He made me call the bank and cancel the check.But Ed had been wrong. Two weeks later, Mickey left a letter from the bank on our steps. The letter informed Mickey that the check, which he had tried to cash, had been cancelled. The following Tuesday morning, when Ed saw a truck outside, he ran out with his wallet. "Are you Mickey?"The man looked at him with scorn. "Mickey is the garbageman. I am the recycling." Not only had Ed insulted this man by hinting that he was a garbageman, but he had obviously neglected to tip him. Ed ran back inside for more funds. Then he noticed that the driver of the truck had been watching the whole transaction. He peeled off another twenty and looked around, waving bills in the air. "Anyone else?"Had we consulted the website of the Emily Post Institute, this embarrassing breach of etiquette (礼节) could have been avoided. Under "trash/recycling collectors" in the institute‟s Holiday Tipping Guidelines, it says: "$10 to $30 each." You may or may not wish to know that your pet groomer, hairdresser, mailman and UPS guy all expect a holiday tip.96. The newspaper deliveryman put a blank card inside the envelope because。

09-图形计算100题(提高)2023年六年级下册数学高频易错题(人教版)(含答案).doc

（期末真题精选）09-图形计算100题（提高）2023年六年级下册数学高频易错题（人教版）试卷说明：本试卷试题精选自浙江省各地市2020-2022近三年的六年级期末真题试卷，难易度均衡，适合浙江省各地市和使用人教版教材的六年级学生小升初复习备考使用！一、图形计算1．求下面阴影部分的面积。

（单位：厘米）2．根据你上面的发现求出下图中正方形的面积．3．求下图阴影部分的面积。

（单位：厘米）4．周长：面积：5．求表面积。

6．计算下面图形的体积。

7．计算下面圆锥的体积。

8．图形计算：如图，四边形ABCD为梯形，半圆的半径OD长为5cm，求阴影部分的面积。

9．求如图中阴影部分的面积。

10．求下图阴影部分的周长和面积。

（单位：厘米）11．求阴影部分的面积。

（单位：cm）12．计算图中阴影部分的面积。

（单位：cm）13．求下面图形的体积（单位：厘米）。

14．图形计算，计算这块空心砖的体积。

（单位：厘米）15．计算下面阴影部分面积。

（单位：cm）16．求下面图形中涂色部分的周长。

17．计算这个零件的表面积。

（单位：厘米）18．求下图中阴影部分的面积。

（单位：厘米）19．计算下面图形的表面积（单位：厘米）。

20．求下面圆中最大正方形的面积．21．正方形边长8cm，求阴影部分面积。

22．如图，计算出该图形的表面积和体积。

（单位：cm）23．求表面积和体积（单位：cm）。

24．把如图所示的圆锥从中间切开，下半部分的体积是多少？（单位：厘米）25．求阴影部分的面积。

（单位：厘米；）26．如图，求下图中阴影部分的面积。

（单位：cm）27．求这个圆柱体的表面积和体积．（单位：厘米）28．求图中阴影部分的面积．（单位：厘米）29．计算下面各图形的表面积。

（单位：cm）30．求阴影部分面积：31．求下面圆柱的表面积．（1）（2）32．求阴影部分面积．33．求如图阴影部分的面积。

（单位：米）34．求图中阴影部分的面积和周长．35．求下面图形的表面积。

专题09 列车过桥问题(一)-2022-2023学年小升初数学行程问题高频常考易错真题专项汇编

专题09 列车过桥问题（一）2022-2023学年小升初数学行程问题高频常考易错真题专项汇编一．解答题1．一列火车长180米，每秒行25米．全车通过一条120米长的山洞，需要多少时间？2．一列火车长670米，它以32米/秒的速度行驶，从车头进入隧道到车尾完全离开隧道共用了80秒，这个隧道的长度是多少？3．一次检阅，接受检阅的一列彩车车队共30辆，每辆车长4米，前后每辆车相隔5米。

这列车队共排列了多长？如果车队每秒行驶2米，那么这列车队要通过535米长的检阅场地，需要多少时间？4．实验小学三、四年级学生528人排成四路纵队到野外参加实践活动，队伍前进的速度是每分钟25米，前后两人都相距1米，现在队伍要通过一座桥，整个队伍从上桥到离桥共用16分钟，这座桥长米．5．一列长50米的火车，穿过200米的山洞用25秒钟，这列火车每秒行多少米？6．一列火车经过南京长江大桥，大桥长6700米，这列火车长140米，火车每分钟行400米，这列火车通过长江大桥需要多少分钟？7．一座大桥长3600米，一列火车以每分钟900米的速度通过大桥，从车头上桥到车尾离开大桥要5分钟，求火车长是多少米？8．一辆长20米的汽车，以每秒16米的速度行驶．要全部通过316米的隧道，用多长时间？9．明明坐在列车上，火车过桥时，从他看到桥头起到看到桥尾时间是30秒，这座桥长600米．而后，他又看到迎面开来一列货车，他从看到货车车头至车尾共用了20秒，货车长700米，这列货车速度是每秒钟米．10．一个车队以4米/秒的速度缓缓通过一座长200米的大桥，共用115秒．问：这个车队共有多少米？11．一列火车长180米，每秒行20米，要经过一座长620米的桥，求全车通过需要多少秒？12．少先队员248人排成两路纵队去参观科技展览，队伍行进的速度是每分钟28米，前后两人都相距1米，现在队伍要通过一座长45米的地下通道，整个队伍从进通道到离开通道需几分钟？13．一列火车长180米，以每分钟1.3千米的速度通过一座大桥．已知从车头上桥到车尾离桥共用了0.8分钟，这座桥长多少米？14．快车每秒行30米，慢车每秒行24米．如果相向而行，坐在快车上的人看到慢车经过窗口的时间是8秒；坐在慢车上的人，看到快车经过窗口的时间是10秒．请问两列火车的长度各是多少？15．一列火车通过小明身边用了10秒钟，通过一座长486米的铁桥用了37秒，问这列火车多长？16．一列火车通过长174米长的隧道，用了33秒，当它通过长594米的大桥时，速度比原来提高13，结果用了51秒．求：①火车过桥时的速度？②火车车身的长度？17．一列火车长100米，以每秒25米的速度通过一座400米长的大桥，共需多长时间？18．一条隧道长360米，某列火车从车头入洞到全车进洞用了8秒钟，从车头入洞到全车出洞共用了20秒钟．这列火车长多少米？19．一座大桥全长2000米，一列火车通过大桥时每分钟行驶250米，从火车头开始上桥到车尾离开桥共需10分钟，这列火车车身有多长？20．一列火车长180米，全车要通过420米的桥要20秒，则火车的速度是多少？21．一列火车长800米，以每秒钟20米的速度通过长2400米的大桥，从上桥到下桥共需多少分钟/22．一实小五年级同学去参观科技展览，422人排成两路纵队，相邻两排前后各相距0.5米，队伍每分钟走65米．现在要通过一座长1065米的桥，从排头两人上桥到排尾两人离开桥，共需要多少分钟？23．一列长70米的火车要通过一座长570米的大桥，火车每秒钟行20米，火车全部过桥需要多少时间？24．一列火车长180米，以每秒15米的速度通过一座大桥用了60秒．大桥长多少米？25．一条隧道长360米，有一列火车以每秒25米的速度经过这条隧道，从车头进隧道到车尾离开隧道共用20秒．这列火车长多少米？26．一列长200米的火车完全通过一座700米长的隧道用时45秒，它以相同的速度，多少秒可以完全通过一座800米长的大桥呢？27．一座铁桥长1000米，一列火车从上桥到车尾离开共用120秒．已知整个列车完全在桥上行驶的时间是80秒，求火车的长度与火车的速度？28．小欢站在铁路旁，一列火车从他身边过时，他看了一下表，车尾全部过完时他又看了一下表，共14秒．这列火车从车头进大桥到车尾离开大桥，共用49秒，这座大桥长700米，火车匀速前进．火车的长度是多少？29．一列长150米的火车以每秒16米的速度穿越一条隧道，火车穿越隧道（从进入隧道直至完全离开）用了49秒，这条隧道长多少米？30．一座大桥长2400米．一列火车通过大桥时每分钟行驶940米，从车头上桥到车尾离桥共需3分钟，这列火车长多少米？提示：火车行驶从车头上桥到车尾离桥所行驶的路程桥长火车长．参考答案一．解答题1．【分析】从车头驶入山洞至车尾离开山洞这叫火车完全通过山洞，火车完全通过山洞走的路程等于山洞与火车长度之和；已知路程、火车行驶的速度，由速度公式可求出火车通过山洞的时间．【解答】解：(180120)25+÷=÷30025=（秒)12答：需要12秒．【点评】本题考查了速度公式变形公式的应用，是一道基础题，知道火车完全通过山洞的路程是山洞与火车长度之和是解题的关键．2．【分析】用32乘80求出总的路程，再减去火车长即可。

必刷9 光合作用和细胞呼吸的测定和分析及实验探究-2023年高考生物总复习高频考点+必刷题(解析版)

___________________________________________________________(至少答出两点)。
(2)在种子萌发过程中的12～30 h之间，细胞呼吸的产物是____________和CO2。若种子萌发过程中缺氧，将导致种子萌发速度变慢甚至死亡，原因是__________________________
3．(2019·全国Ⅱ，31)回答下列与生态系统相关的问题：
(1)在森林生态系统中，生产者的能量来自于__________，生产者的能量可以直接流向______________________(答出2点即可)。
(2)通常，对于一个水生生态系统来说，可根据水体中含氧量的变化计算出生态系统中浮游植物的总初级生产量(生产者所制造的有机物总量)。若要测定某一水生生态系统中浮游植物的总初级生产量，可在该水生生态系统中的某一水深处取水样，将水样分成三等份，一份直接测定O2含量(A)；另两份分别装入不透光(甲)和透光(乙)的两个玻璃瓶中，密闭后放回取样处，若干小时后测定甲瓶中的O2含量(B)和乙瓶中的O2含量(C)。据此回答下列问题：
必刷09 光合作用和呼吸作用
的测定和分析及实验探究
高考试题
1.（2021年全国统一高考全国乙卷·7）生活在干旱地区的一些植物（如植物甲）具有特殊的CO2固定方式。这类植物晚上气孔打开吸收CO2，吸收的CO2通过生成苹果酸储存在液泡中；白天气孔关闭，液泡中储存的苹果酸脱羧释放的CO2可用于光合作用。回答下列问题：
【答案】(1)细胞质基质和线粒体君子兰在温度为T1、光照适宜的条件下，2小时内释放O2的量(或君子兰在温度为T1、光照适宜的条件下的净光合速率) (2)E>H>F
(3)大于 C/(C－B)或－C/(B－C)

09级高频练习题答案

高频练习题一、填空题1. 高频放大器按负载形式可分为调谐放大器和非调谐放大器。

注：按输入信号分为小信号放大器和大信号放大器，按放大信号的频谱带宽分为宽带放大器和窄带放大器。

2．反馈振荡器的起振条件为： 1..>F A 。

注：反馈振荡器的组成：具有放大能力的有源器件、选频网络、正反馈网络。

反馈振荡器的振幅平衡条件：1=F A ，相位平衡条件：...3,2,1,2==+n n F A πφφ。

LC 和石英晶体振荡器起振时工作于甲类放大状态，平衡时可工作在甲类、甲乙类甚至丙类放大状态，这是因为这两类振荡器的选频网络的选频特性较好。

3. 检波就是从调幅波信号中取出原调制信号的过程。

注：调幅是指用调制信号去控制载波的振幅，常见的调幅方式有：AM 、DSB 、SSB 、VSB 。

4.高频功率放大器中，谐振电路的作用是传输、滤波、匹配。

5．宽带调频Δf =10kHz ，调制信号频率为500Hz ，则频谱带宽BW= 21KHz ，调频指数m f = 20 。

6．衡量选择性的指标有矩形系数和抑制比。

7．反馈振荡器的平衡条件为： 1..=F A 。

8．混频只能改变已调波的载频，而不能改变已调波的调制规律。

9．高频功率放大器有过压、临界、欠压三种工作状态。

注：其中临界为发射末级的最佳工作状态。

10．宽带调频Δf =75kHz ，调制信号频率为300Hz ，则调频指数m f = 250 ，频谱带宽BW= 150.6KHz 。

f f BW f f m f +∆=∆=2,/ 二、单项选择题1．小信号谐振放大器不稳定的根本原因是 C 。

A、增益太大B、通频带太窄C、晶体管的内部反馈作用D、谐振曲线太尖锐2．电容反馈三点式振荡器的优点 B 。

A、调节振荡频率方便B、波形好C、输出电压较大D、振荡频率稳定度高（电容反馈三点式振荡器的优点：波形好、振荡频率高。

电感反馈三点式振荡器的优点：容易起振、电路简单、调节振荡频率方便、输出电压高）3．振荡器的振荡频率由 B 条件决定；振荡电压的幅度由 A 条件决定。

09级-听力答案-1-9-何中清.docx

专4考试指南一何中清Test 1Television, although not essential, has become an important part of most peopled lives. It alters peopled ways of seeing the world; in many ways, it supports and sustains modern life. Television has become a baby-sitter, an introducer of conversations, the major transmitter of culture, a keeper of tradition. Yet what can be seen on TV in one day is critically analyzed. It becomes evident that television is not a reader be a sustainer; the poor quality of programmers does not elevate people into greater understanding, but rather maintains and encourages the life as it exists. The primary reason for the lack of quality in American television is related to both the history of TV program development and the economics of TV. The close relationship which the advertisers had with radio programs became the system for American TV. Sponsors not only paid money for time within programs, but many actually produced the programs.Test 101-05 C D A B D 06-10 B A B A B11-15 A D C B A 16-20 A B B D C21-25 D B B C A 26-30 D A A A ATest 2DictationOpportunityOpportunities don^t come often. They come every once in a while. Very often, hey come quietly and go by without being noticed. Therefore, it's advisable that you should value and treat them with care. When an opportunity comes, it brings a promise but never realizes it on its own. If you intend to fulfill one of your ambitions, you must work hard. /Otherwise, you will take no advantage of opportunities when they visit you. /The difference between a successful man and one who is not lies only in their way of treating opportunities. The successful person always makes adequate preparations to meet opportunities. The loser, on the other hand, works little and just waits to see them pass by. There are plenty of opportunities for everyone in our society, but only those who are prepared adequately and qualified highly can make use of them to achieve their purpose. Chance favors the minds that are prepared.Test 201-05 B A C D D 06-10 C C D A D11-15 B A A D A 16-20 B B D C A21-25 B A A B B 26-30 B D D C BTest 3DictationAmerican Wedding CustomsWedding days are often considered the most important day of many peoples lives. For this reason alone, throughout the past and into modern day, numerous customs and superstitions have developed around the wedding event, in hopes of creating "The Perfect Day”. A very common custom still honored today is in reference to a time-old saying: something old, something new, something borrowed, something blue, and a silver sixpence inside your shoe. So old is this that tracing it back to its origination is nearly impossible. The "old” is believed to be the friends and family attending the wedding. The n new n is represented by the couple themselves, as a n new u union. The "borrowed” is something from the families that is to be returned. Something "blue” is interpreted to represent the bride's virginity. /The sixpence can be any form of money, tucked into the bride's shoe, this to bring wealth to the union, both in monetary means and love.Test 301-05 B D D A C 06-10 C A D B B 11-15 B A D B D 16-20 c A B C A21-25 C B C D A 26-30 B D B C ATest 4There are very often strong opinions expressed about what makes a good wine. At a simple level, a good wine is one that you enjoy drinking. But why do you prefer one wine to another? To judge a wine there are three basic senses that have to be employed: the sense of sight, the sense of smell, and the sense of taste. Of these three, taste is by far the most complex, but sight and smell are powerful. The wrong color or the wrong smell enables a wine to be discarded without taste even being involved. Havingexamined the wine, you can now get on and drink it. But try and remember your conclusions, for it is only by building up your own personal taste bank memory that you can progress as a wine taster. It is not difficult, and it is great fun. Cheers!01-05 D B D D B 06-10 A B C C B11-15 A C B A A 16-20 B B A B C21-25 D C A C A 26-30 C A A A CTest 501-05 C D B C B 06-10 B B C C D11-15 C B A C C 16-20 B D C A C21-25 D B A B C 26-30 C C B B DTest 5SaltWe do not know when man first began to use salt, but we do know that it has been used in many different ways. Historical evidence shows that people who lived over 3,000 years ago ate salted fish. Thousands of years ago in Egypt, salt was used to embalm the dead. Stealing salt was considered a major crime during some eras of history. In the 18th century, if a person was caught stealing salt, he could be put in jaiL Salt was an important item on the table of royalty. It was traditionally placed in front of the King when he sat down to eat. In the early days in the U.S-, salt was very scarce. So the storekeeper of pioneer days was very careful with his salt. In the modern world salt has many uses beyond the dining table. It is used in making glass and airplane parts, growing crops and killing weeds.Test 601-05 C A B C A 06-10 B D A B C11-15 C C D C C 16-20 A C B C B21-25 B B B B C 26-30 D A D B C Test 701-05 C B C B D 06-10 B B B D A11-15 D D B D B 16-20 C B C A C21-25 A B B B A 26-30 B C A A BSocial and Physical DistanceSocial distance may affect how openly employees speak about their work. People of the same rank may frankly to one another about how things are going. However, they may be less honest with someone higher up in the hierarchy for fear of prejudicing their position in the company. For this reason employees often alter the facts to tell the boss what he or she wants to hear. One way of reducing social distance is to cut down the ways in which employees can indicate higher status. Physical distance can affect how well people communicate. The farther away one person is from another, the less often they communicate. Some research has shown that when the distance is more than 10 meters, the probability of communicating at least once a week is only 8%. The most important thing for all managers to remember is that communication is a two-way process. They should encourage their employees to ask questions and to react to what the managers are saying.Test 801-05 D B A B C 06-10 C C D B C11-15 C C B B B 16-20 A C D B A21-25 D C A C C 26-30 A B B B CTest 8SleepSleep is part of a person's daily activity cycle. There are several different stages of sleep, and they too occur in cycles. If you are an average sleeper, your sleep cycle is as follows. When you first drift off into sleep, your eyes will roll about a bit, your temperature will drop slightly, your muscles will relax, and your breathing will slow and become quite regular. Your brain waves slow down a bit, too, with a rhythm of rather fast waves predominating for the first few minutes. This is called Stage 1 sleep. For the next half hour or so, as you relax more and more, you will drift down through Stage 2 and Stage 3 sleep. The lower your stage of sleep, the slower your brain waves will be. Then about 40 to 69 minutes after you lose consciousness you will have reached the deepest sleep of all. Your brain will show the large slow waves. This is Stage 4 sleep.The Father and His SonsA father had a family of sons who were perpetually quarreling among themselves. When he failed to heal their disputes, he determined to give them a practical illustration of disunion; and for this purpose he told them to bring him a bundle of sticks. When they had done so, he placed the faggot into the hands of each of them in succession, and ordered them to break it in pieces- They tried with all their strength, and were not able to do it. He next opened the faggot, took the sticks separately, one by one, and again put them into his sons* hands, upon which they broke them easily. He then addressed them in these words:H My sons, if you are of one mind, and unite to assist each other, you will be as this faggot, uninjured by all the attempts of your enemies; but if you are divided among yourselves, you will be broken as easily as these sticks."Test 901-05 B B B B C 06-10 B B A C A11-15 C B C B B 16-20 B D A B C21-25 B C C D C 26-30 D D B B B。

09-图形计算100题(提高)2023年六年级下册数学高频易错题(人教版)(含答案).doc

（期末真题精选）09-图形计算100题（提高）2023年六年级下册数学高频易错题（人教版）试卷说明：本试卷试题精选自广东省各地市2020-2022近三年的六年级期末真题试卷，难易度均衡，适合广东省各地市和使用人教版教材的六年级学生小升初复习备考使用！一、图形计算1．计算下列图形中阴影部分的面积。

（1）（2）2．求涂色部分的面积。

3．已知等腰直角三角形的面积是50平方厘米，求半圆的面积（π取3.14）。

4．阴影部分的周长和面积各是多少？5．图形计算。

求下面阴影部分图形的周长。

6．计算下面图形的表面积和体积。

（单位：厘米）7．求出下面圆柱的体积。

（单位：cm）8．求图中阴影部分的周长和面积。

9．图中是两个正方形，大正方形边长为8，小正方形边长为4，求图中阴影部分面积．（单位：厘米），（π取3.14）10．下图中，底边和高都是6厘米的等腰三角形，分别以高的长为直径画圆，以底的一半长为直径画两个半圆，求阴影部分的面积。

（π取3.14）11．求阴影部分的周长。

（单位：分米）12．计算下面图形中阴影部分的面积（1）（2）外圆半径4cm，内圆半径3厘米13．计算正方体的表面积。

14．求下图中阴影部分的面积。

（单位：厘米）15．下图中三个圆的周长都是25.12厘米，不用测量。

计算图中阴影部分的总面积。

16．计算图形的体积。

17．计算下图阴影部分的面积（单位：厘米）。

18．如图中，三个圆的直径都是4dm，求阴影部分的面积和周长．19．计算下面圆柱的表面积．20．求下面图形阴影部分的面积。

（单位：厘米）21．求出阴影部分的周长和面积．（单位：厘米）22．求阴影部分的面积：大圆的半径与小圆的直径都是3厘米．23．下面各涂色部分的面积．（单位：dm）24．求出这个组合体的体积。

（单位：厘米）25．下图中涂色部分正方形的面积是240m，求图中未涂色部分的面积。

26．求阴影部分的面积。

（单位：cm）27．如图，计算它的周长和面积．（单位：厘米）28．求阴影部分的面积。

【中考英语高频考点精选】09 冠词(解析版)

09 冠词高频考点精选【典例1】Lao She is great writer. He’s especially famous for play Teahouse.A.an;theB.a;theC.an;aD.a;an 答案：B句意:老舍是一位伟大的作家,他尤其以话剧《茶馆》出名。

本题考查冠词的用法。

第一空后的writer在本句中表示泛指,故需填不定冠词,great以辅音音素开头,故填a;根据题干中的Teahouse可知第二空后的名词play表示特指,故填定冠词。

综上所述答案：为B项。

【典例2】—The photo makes me think of trip to Hangzhou last year.—Yeah, we had great time there.A.a;/B.an;theC.the;theD.the;a答案：D句意:——这张照片使我想起去年去杭州的旅行。

——是的,我们在那里玩得很开心。

本题考查冠词的用法。

第一个空特指去年去杭州的那次旅行,故应用定冠词the。

第二个空为固定短语have agreat time的一部分, 故应用不定冠词a。

由此可知,本题选择D。

【典例3】Taking High School Entrance Examination one month later than usual will be un- forgettable event for us.A.aB.anC.the答案：B句意:比平常晚一个月参加中考对我们来说将是一件难忘的事情。

本题考查冠词的用法。

a 表泛指,用在以辅音音素开头的单词前;an表泛指,用在以元音音素开头的单词前;the表特指。

unforgettable是以元音音素开头的单词,且此处表示泛指,故选B。

【典例4】Leap is film on the Chinese women’s national volleyball team. film is directed by Peter Ho-sun Chan.A.a;AB.a;TheC.the;TheD.the;A答案：B句意:《夺冠》是一部关于中国女排的电影,这部电影由陈可辛执导。

09-解决问题100题(提高)2023年四年级下册数学期末高频易错题(人教版)(含答案).doc

（期末真题精选）09-解决问题100题（提高）2023年四年级下册数学期末高频易错题（人教版）试卷说明：本试卷试题精选自浙江省各地市2020-2022近三年的四年级期末真题试卷，难易度均衡，适合浙江省各地市和使用人教版教材的四年级学生期末复习备考使用！一、解决问题1．小红的身高是1.25米，她站在0.6米高的凳子上比妈妈高0.18米．妈妈的身高是多少米？2．“爱心助农”活动开始了，王叔叔买了大枣和山核桃各25袋，大枣每袋83元，山核桃每袋75元，王叔叔这次买山核桃比大枣少花多少钱？3．某风景区推出优惠游活动如下表，现在有成人12人，儿童3人要去游玩，想一想怎样买票最省钱？最少花多少钱？4．笼子里有鸡和兔，一共有26只脚，后来又往笼子里放进若干只兔，并抓出同样多的鸡，这时笼子里有32只脚。

问：后来放进了多少只兔？5．一根绳子长23.5米，第一次剪下0.46米，第二次剪下7.18米，还剩下多少米？6．游乐场上午卖出125张门票，下午卖出92张门票，游乐场全天一共卖出多少张门票？7．用一根绳子围成一个顶角是80°的等腰三角形，它的一个底角是多少？8．小巧期末考试语文考了87分，英语考了89分，她要想三门平均成绩达到90分，数学至少要考多少分?9．某工厂原计划一年生产农具4800部，实际用了10个月就完成了任务。

实际平均每月比原计划每月多生产多少部农具？10．一桶油连桶重55.1kg，用去一半后连桶重30.1kg．这桶油重多少千克？油比桶重多少千克？11．王芳语文、数学、英语三科的平均成绩是92分，其中语文88分，数学95分。

王芳的英语成绩是多少分？12．一张纸的厚度约为0.0125厘米，10000张纸叠在一起厚多少米？13．用一辆大货车和一辆小货车运一批水果，大货车每次运5吨，小货车每次运3吨，两车同时运了125次，这批水果共有多少吨?14．学校进行广播操比赛，有12个班参加，每个班排成4组，每组有8人，一共有多少名学生参加广播操比赛？15．在学校庆祝“六一”联欢会上，参加大型团体操表演的共有16个方阵，每个方阵有24行，每行有25人，一共有多少人参加表演？16．李阿姨购买一批运动服，这批运动服上衣75元，裤子45元。

09级英语六级强化周练习答案(教师用)

Test OneNBZL--1Part I Writing范文：Ours is regarded as a very competitive society, yet a lot of undertakings call for cooperation. How should we understand the relationship between competition and cooperation?Let’s illustrate this with a football team. Everyone on the team works hard and strives to be the best player. He will make full use of his own advantages to catch up with and surpass the others. At the same time, everyone should cooperate with the others and work together to win the game. A team which is good at individual skills but poor in teamwork can never win a game.While competition helps enhance individual abilities, cooperation helps bring individual abilities to full play, make up for each other’s inadequacy and enhance the overall quality of the parties involved. Competition without cooperation may be good to only a few people but harmful to society as a whole; Cooperation without competition may bring about a peaceful life to all but destroy individual’s initiative and eventually affect social development.A sound interaction of competition and cooperation promotes each other, thus advancing the development of the whole society. As a matter of fact, it is in this way that our society has achieved today’s prosperity. Let’s compete in the spirit of cooperation and cooperate on the basis of competition.Part II Reading Comprehension ( Skimming and Scanning)答案：1. Y 2. N 3. NG 4. Y5. dubious distinction6. growing economy7. not at bad8. in isolation 9. free themselves from their sins10. rapid demisePart III Listening Comprehension答案：11. A 12. B 13. A 14. D 15. A 16. C 17. B 18. B 19. C 20. B 21. B 22. C 23. C 24. C 25. D 26. D 27. C 28. A 29. B 30. A 31. C 32. B 33. B 34. D 35. A36. convenient 37. estimate 38. survive 39. Resources 40. riches 41. mined 42. promises 43. Oriental44. Ocean currents and waves offer possible use as a source of hydroelectric power45. Technology is enabling man to explore even deeper under the sea46.The development of strong , new materials has made this possiblePart IV Reading Comprehension ( Reading in Depth )答案：47. Southern manuscripts and letters.48. As a forger49. a respectable buyer50. She was an imaginary person created by Spring.51. the originals答案：52. B 53.A 54.D 55.D 56.A答案：57.D 58.A 59.B 60.C 61.CPart V Error Correction答案：62. Of 去掉。

09年英语真题答案及解析

09年英语真题答案及解析近年来，英语学习已经成为了许多人不可忽视的需求。

无论是为了出国留学、职场提升还是个人兴趣，掌握英语已经成为了必备技能之一。

为了更好地备考英语，了解历年真题的答案及解析是非常重要的。

本文将针对2009年的英语真题进行答案分析和解析，帮助读者更好地理解和掌握英语考试技巧。

Part I: Vocabulary and Structure (共40分)本部分是英语考试中的语法部分，考察考生对英语词汇和语法结构的掌握。

下面是2009年英语真题Part I的答案及解析。

Section A: Vocabulary (共10分)1. C，2. A，3. D，4. B，5. C答案解析：这部分主要考察对词汇的理解和应用能力。

可以通过对选项的分析以及句意的理解来进行答题。

在备考过程中，积累和记忆常用的词汇是非常重要的。

Section B: Structure (共10分)1. D，2. B，3. C，4. A，5. D答案解析：这部分考察对英语语法结构的理解和应用能力。

在备考过程中，要重点掌握常用的语法规则，并多做练习题来提高自己的应对能力。

Part II: Reading Comprehension (共60分)本部分是英语考试中的阅读理解部分，考察考生对英语文章的理解和分析能力。

下面是2009年英语真题Part II的答案及解析。

Section A: Multiple Choice (共20分)1. B，2. C，3. A，4. D5. B，6. C，7. D，8. A9. B，10. D答案解析：这部分主要考察对文章整体内容和细节的理解能力。

在备考阅读理解时，要注意抓住文章的关键信息和上下文的逻辑关系。

Section B: True or False (共10分)1. F，2. T，3. T，4. F，5. T答案解析：这部分主要考察对文章细节的理解和判断能力。

在答题时，要仔细阅读文章，并注意正确理解每个句子的含义。

09-解决问题100题(提高)2023年四年级下册数学期末高频易错题(人教版)(含答案).doc

（期末真题精选）09-解决问题100题（提高）2023年四年级下册数学期末高频易错题（人教版）试卷说明：本试卷试题精选自广东省广州市各区县2020-2022近三年的四年级期末真题试卷，难易度均衡，适合广东省广州市各区县和使用人教版教材的四年级学生期末复习备考使用！一、解答题．名少先队辅导员带领42名少先队员去划一个小时的船，怎样租船最便宜？共花多少钱？．下面是光明小学四年级某次单元测验成绩统计表．成绩优秀良好及格不及格8．在一个等腰三角形中，底角的度数是顶角的2倍，求顶角和底角的度数。

9．王阿姨的花店上月卖出杜鹃花13盆，共计234元。

照这样计算，26盆杜鹃花可以卖多少钱？10．一个工程队要修一段路，已经修了12天，平均每天修360米，剩下的只要每天修240米，18天就可以修完。

工程队要修的这条路一共有多少米？11．为增强学生的语文阅读素养，学校订购《语文主题阅读》丛书平均分发给全校54个班，如果每班分46本，还差4本，学校一共订购了多少本丛书？12．小红从家到公园有540米，步行要用12分钟，她用同样的速度从家步行945米到少儿图书馆，需要多少分钟？13．甲、乙两筐苹果一共重24.6千克，如果从甲筐中拿出2.3千克放到乙筐中，两筐苹果一样重。

原来乙筐中有多少千克苹果？14．鑫鑫超市出售酸奶，每盒13元。

为庆祝元旦，现推出买“4盒送1盒”的优惠活动，妈妈带182元最多能买多少盒酸奶？15．爸爸早上以120米/分的速度步行上班，15分钟到达单位。

同样的路线，下班时他乘公交车回家只需要6分钟。

这辆公交车的平均速度是多少？16．说一说，同一平面内，不重合的两条直线的位置关系有几种？并用你喜欢的方式表达出来。

17．用一批纸装订练习本，每本30页，可以装订120本．如果每本25页，可以装订多少本？18．小红家位于学校的东侧，小丽家位于学校的西侧，两人7：30从家出发，7：50在校门口相遇，小红每分钟大约走65米，小丽每分钟大约走60米，两家相距大约多少米？19．为了学生的卫生安全，学校给每个学生配一个水杯，每个水杯3元。

高中化学专题09 有机化合物-2021年高考化学一轮复习高频考点集训(解析版)

专题09 有机化合物一、单选题1．下列说法不正确．．．的是A．淀粉水解液加过量氢氧化钠溶液后，加新制氢氧化铜悬浊液可检验是否水解完全B．用重铬酸钾的酸性溶液不能鉴别乙醇、乙醛C．饱和(NH4)2SO4 溶液或硫酸铜溶液均可使蛋白质溶液产生沉淀，但原理不同D．在苯与液溴制备溴苯的实验中，溴苯提纯步骤：水洗、用10%的氢氧化钠溶液洗涤、水洗、用干燥剂干燥、蒸馏【答案】A【解析】A. 新制氢氧化铜悬浊液用于检验葡萄糖，只能检验淀粉是否水解了，不能检验是否水解完全，故A错误；B. 乙醇、乙醛均能被重铬酸钾氧化，而使重铬酸钾的酸性溶液褪色，故不能鉴别，故B正确；C. 饱和(NH4)2SO4 溶液使蛋白质溶液产生沉淀的原理是盐析，而硫酸铜溶液使蛋白质溶液产生沉淀的原理是变性，原理不同，故C正确；D. 在苯与液溴制备溴苯的实验中，反应混合物中含有溴苯、苯、溴化铁、溴化氢、溴单质，溴苯提纯步骤：水洗、用10%的氢氧化钠溶液洗涤、水洗，是用于除去溴化铁、溴化氢、溴单质，分液后得到溴苯、苯的有机层，用干燥剂干燥除去有机物中残留的水分，再蒸馏获得溴苯，故D正确；故选A。

2．下列事实可以用同一原理解释的是A．乙烯使溴水、高锰酸钾溶液褪色B．SO2和Cl2使品红溶液褪色C．碘片、氯化铵晶体受热消失D．ClO2和漂白粉现在都常用于自来水的处理【答案】D【解析】A．乙烯使溴水褪色发生的是加成反应，使高锰酸钾溶液褪色发生的是氧化反应，原理不同，A不符合题意；B．SO2使品红溶液褪色是因为SO2与品红发生反应生成无色的物质，Cl2使品红溶液褪色是因为Cl2与H2O 反应生成的HClO具有强氧化性，原理不同，B不符合题意；C．碘片受热消失是碘升华，氯化铵晶体受热消失是发生分解反应生成氨气和氯化氢，原理不同，C不符合题意；D．ClO2和漂白粉处理自来水都是应用其强氧化性，可以消毒杀菌，原理相同，D符合题意；故选D 。

3．海水晒盐后精制得NaCl ，氯碱工业电解饱和NaCl （aq ）得到Cl 2和NaOH ，以NaCl 、NH 3、CO 2等为原料可得到 NaHCO 3；向海水晒盐得到的卤水中通Cl 2可制溴；从海水中还能提取镁。

09级遗传学练习题（2）

09级遗传学练习题（2）遗传学练习题⼀、名词解释：⼈类基因组计划（HGP）由美国科学家于1985年率先提出，于1990年正式启动的⼀项国际合作项⽬。

该计划旨在对构成⼈类基因组的30亿个碱基对进⾏精确测序，发现所有⼈类基因并搞清其在染⾊体上的位置，最终破译⼈类的全部遗传信息。

同源染⾊体染⾊体组型隐性致死基因共显性复等位基因基因互作 Lyon假说 TDF基因从性遗传不完全连锁基因定位启动⼦(Promoter) 回⽂序列 SD序列互补测验（顺反测验）染⾊体畸变平衡致死品系基因突变⽆义突变⼆、填空题：1、离基因编码的起始区最近的元件是（启动⼦）。

对启动⼦识别起作⽤的是RNA聚合酶的（6）亚基。

2、某⼀植物⼆倍体细胞有10条同源染⾊体，在减数分裂前期Ⅰ可观察到（5）个⼆价体，此时共有（20）条染⾊单体，到中期Ⅱ每⼀细胞可观察到（10）条染⾊单体。

3、⼈类的性别决定属于（XY）型，鸡的性别决定属于(ZW)型，蝗⾍的性别决定属于(XO)型。

4、有⼀杂交：CCDD × ccdd，假设两位点是连锁的，⽽且相距20个图距单位。

F2中基因型(ccdd)所占⽐率为(16%)。

5、中，把两个突变点分别位于两条染⾊体上称为（反）式，若有互补，表明两个突变点位于（不同）顺反⼦中；若没有互补，表明它们位于（同⼀）顺反⼦中。

检验两个突变点是否属于⼀个基因即顺反⼦的实验叫（互补实验）。

6、细胞减数分裂过程中，（前期Ⅰ的偶线期）发⽣同源染⾊体联会，（前期Ⅰ的粗线期）染⾊体间发⽣遗传物质交换；（前期Ⅰ的双线期）发⽣交叉端化现象，这⼀过程⼀直进⾏到（中期Ⅰ），后期Ⅰ（同源）染⾊体分开，⽽染⾊单体分离在（后期Ⅱ）。

7、杂种植株AaBbCc⾃交，如果所有的座位都在常染⾊体上，⽆连锁关系，与⾃交亲本表现型相同的后代⽐例是（27/64）。

8、在AaBbCcDd×AaBbCcDd的杂交中，①每⼀亲本能产⽣（16）种配⼦；②后代的基因型种类有（81）种；③后代的表型种类有（16）种(假定4对基因均为完全显性)；④后代中表现A_B_C_D_表型的占（81/256）；⑤后代中表现aabbccdd表型的占（1/256）。

09级高频练习题答案

2009年9月国家公共英语(三级)真题试卷(精选)(题后含答案及解析)

09专四真题答案及解析

09英语1真题答案及解析

2009年英语真题+答案解析

09英语二调参考答案

09年专四真题及答案

09-图形计算100题(提高)2023年六年级下册数学高频易错题(人教版)(含答案).doc

专题09 列车过桥问题(一)-2022-2023学年小升初数学行程问题高频常考易错真题专项汇编

必刷9 光合作用和细胞呼吸的测定和分析及实验探究-2023年高考生物总复习高频考点+必刷题(解析版)

09级高频练习题答案

09级-听力答案-1-9-何中清.docx

09-图形计算100题(提高)2023年六年级下册数学高频易错题(人教版)(含答案).doc

【中考英语 高频考点精选】09 冠词(解析版)

09-解决问题100题(提高)2023年四年级下册数学期末高频易错题(人教版)(含答案).doc

09级英语六级强化周练习答案(教师用)

09年英语真题答案及解析

09-解决问题100题(提高)2023年四年级下册数学期末高频易错题(人教版)(含答案).doc

高中化学专题09 有机化合物-2021年高考化学一轮复习高频考点集训(解析版)

09级遗传学练习题（2）

【中考英语高频考点精选】09 冠词(解析版)