人教版高中英语必修二第6讲：Unit3 Computers-语法篇(教师版)

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高中英语人教版必修2课件：Unit 3 Computers

Well, in general, WWW stand for “World Wide Web”. Most people confuse the Internet with the World Wide Web. However, there is a difference. The Internet is made up of thousands of computers that are connected worldwide. WWW or World Wide Web, is what your computer uses to check out the Internet. For example, your computer uses browsers, such as Internet Explorer or Netscape (网景浏览器) to let you see and hear all the cool pictures, information, music and sounds on the Internet.
1．confuse vt. 2．connect vt. 3．browser n. 4．surf vt. 5．modem n. 6．graphics n.
使混乱；使困惑连接；联合；关联 (电脑)浏览器在……上冲浪调制解调器绘画；图像
1．What difference is there between the Internet and WWW? ________________________________________________________________ 2．What do you need if you surf the World Wide Web? ________________________________________________________________ 【答案】 1.The Internet is made up of thousands of computers that are connected worldwide；WWW is what your computer uses to check out the Internet. 2．You need to have a computer with a modem and a browser.Besides，you need to have an Internet Service Provider.

人教版高中英语必修二课件Unit3Computers——grammar课件

【学以致用】My brother has
bought thisFbike for almost four years.（改错） HowT long has this book
been bought（判断正误）
（4）带有双宾的词，如__g_i_v_e,_,s_e_n_d_,b,_ri_n_g_， __ta_k_e_,_te_a_c_h,,_te_l_l_,w__r,i_te_,_b_u_y,p_a_y___等，变为被动语态时，将其中一个宾语变为主语，其他借助介词 to 或者for。【学以致用】The teacher has given twins a book. （用被动时态对句子进行改写）
Their photos have been made fun of by the netizens.
现在完成时被动态结构：
have /has +been +过去分词
时间状语现在完成时常与already ,yet recently ,so far ,by now, up till now ,since .....,before......等连用
had been done
过去将来时
would be done
一般将来时
will be done
现在完成时
have/has been done
歌诀是：被动语态be字变，过去分词跟后面。
ห้องสมุดไป่ตู้
现在完成时态
定义：现在完成时的动作或情况虽然发生在
过去，但它强调的是与现在的关系，用来说明现在的情况。现在完成时态结构：(have/has + 过去分词)
思
The programme has been broadcasted since November.

重点短语(人教版必修 2 Unit 3 Computers)(讲义)

1. 学习短语的根本含义和用法。

2. 灵敏运用所学的短语，学会用短语造句。

重点：短语as a result, in a way, deal with, watch over的用法。

难点：deal with有关的短语和as a result有关的短语。

【短语学习】1. as a result 结果；因此★★★★as a result “结果〞，作结果状语，常放在句首或句中，强调产生的结果。

As a result，I have made steady progress in my studies.结果我在学习上稳步上升。

He made one big mistake, and, as a result, lost his job.他犯了个大错误，结果丢了工作。

as a result of 由于；作为……的结果without result 毫无结果地；徒劳result from 由……引起〔搭配：结果+result from+原因〕result in 导致；结果〔搭配：原因+result in+结果〕in the result 结果〔结局〕They were late as a result of the rain. 由于下雨，他们来晚了。

His carelessness resulted in his death. 〔同义句改写〕〔1〕His death resulted from his carelessness.(用his death作主语改写句子)〔2〕He died as a result of his carelessness.(用result的名词短语改写句子)as a result中的a不可用the 代替，而as a result of中的a那么可用the交换。

as a result of作为……的结果；由于because of 由于，因为owning to 由于thanks to 由于，幸亏due to由于It rained heavily. ________，we had to stay at home for the whole weekend.A. As a resultB. As a result ofC. Result fromD. Lie in答案：A思路分析：关键是分清因果关系，本句是前因后果。

人教版高中英语必修2Unit 3Computers语言要点教案新

Unit 3 Computers 语言要点Ⅱ 词性变化（旨在提供语法填空所需材料）1. sum n. 金额; 款项; 总数; 总和[典例]1). He was fined the sum of 200. 他被处以200英镑罚金。

2). The sum of 5 and 3 is 8. 5加3的和是8。

[重点用法]in sum简言之; 总而言之sum sb/sth up形成对某人[某事物]的看法[练习] 中译英1). 总之, 计划告吹了。

_______________________________________________________________________________ ______2). 我认为她是个很能干的经理。

_______________________________________________________________________________ ______Keys: 1). In sum, the plan failed.2). I summed her up as a competent manager.2. advantage n.优点；优势；有利条件[典例]1). He has the advantage of a steady job. 他有工作稳定的有利条件。

2). They took full advantage of the hotel's facilities. 他们充分利用旅馆的设备。

[重点用法]take advantage of 对……加以利用；欺骗to sb.’s advantage 对某人有利have /get/win an advantage over （of）胜过；优于[练习] 中译英1).协议对我们有利。

_______________________________________________________________________________ ______2).她利用了我的慷慨。

人教新课标高中英语必修二Unit 3 Computers教案

Unit 3 ComputersPeriod 1 ReadingI.Teaching aims1. Knowledge aims(1)Get the students to learn the useful and expressions in this part.(2)Let students to learn about history and basic knowledge of computers.2. Ability aimDevelop students' reading abilities and let them learn different reading skills.3. Emotional aimArouse students' great interest in learning computers and let them learn to use the computers in their daily lives.II.Teaching difficult and important points1.Let the students learn more about history and basic knowledge of computers.2.Get the students to learn different reading skills.III.Teaching methods1.Task-based teaching and learning2.Cooperative learning3.DiscussionIV. Teaching proceduresStep1.Lead-in and warming upShow the students some pictures of Steve Jobs and let them guess who he is. After showing the third picture, they may get the right answer. Then let them focus on the tablet in his hands and ask them what kind of computers it is.Then show them a short video about the history of Apple’s computers and ask them how many different kinds of computers they can see.At last, show them some kinds of computers.T: Do you want to know more about computers?Step2.SkimmingRead the whole passage as fast as you can.Try to get the main idea of this passage.A. The computer wants to find “who he is”.B. The function (功能) of the computer.C. The computer becomes popular around the world.D. The history and the applications of the computer.Find out the topic sentence of each paragraph and underline them.Step3. Careful-reading Para 1ScanningLet the students read this paragraph carefully and try to finish the following char.T: How could these changes become possible?Step4. Careful-reading Para 2Let the students read paragraph 2 quickly and find the answer to this question. After check the answer, give them one minute to find the five different ways of memory for computers in different periods of time.Step5. Careful-reading Para 3Since the memory of computers has been improved greatly, will them become more powerful and can be used in more fields?Now read the last paragraph and find out the new applications of computers.Step6. Further Reading1.The passage is written by_______ order?2. What is the most used rhetoric (修辞法) in this passage?A. simile（明喻）B. personification (拟人)C. metaphor (暗喻)3. In what ways have computer been changed?Ask some students to summarize. If they have any difficulty, give them some hints. Step7. Activity: Be the next Jobs!We have learned the history of computers and seen the great development of computers. What will the computers be like in the future? Do you want to design your computers as Jobs did? Now try to design your computers.For example:This is the new computer designed by our company.It is very small and transparent(透明的). You can even put it into your pocket. (Shape/color)It has a free-internet in it. You can… (Applications/functions)It only costs you … (Price)Give the students five minutes to prepare and invite some of them to show their ideas. Step8. Homework1. Try to retell the history of computers.2. Read the passage carefully and underline the difficult sentences.。

人教版高中英语必修二教案：Unit 3 Computers Period 6 Using language

Unit 3 ComputersPeriod 6 Using language教学设计I. Teaching aims:1.To do the listening exercises in this unit.2.Read the passage ANDY-THE ANDROID3.To master the following expressions:signal; goal; type; in a way ; arise; with the help of; electronic; deal with; watch over4. To know about the liaison and incomplete explosion.II. Teaching methods:Readingh; Listening ,speaking and writingIII. Teaching important and difficult points:Important points :Learn the expressions in this part.Difficult points:Understand the passage better.IV. Teaching procedures:Step 1 RevisionCheck the answers to the homeworkStep 2 Lead-in1.Talking about ITTeacher with the students together to have wo talk about IT:What is I T？(Information Technology)Can you tell some ITs？( students share their answers)Step 3 Listening1)Listen to the whole text and try to write down the main idea in onesentence.Two students are talking about information technology.2). Listen for the second time and fill in the chart on exercise 3 with your partner( Teacher had better play the listening materials one more times to make sure all the students can listen clearly)3). Discussion:What are the advantages and disadvantages of each form of IT?In small groups discuss this question and put your ideas on to the chart. Then decide when each kind of IT is most useful.Use the reasoning expressions on PPT 11—12 in your discussion. Step 4. Reading1.Ask the students to read the text and find out what is Andy and it’scharacters.Andy is part of an android football team.Andy is as big as a human. In fact, Andy looks like one too.Andy is a striker on the football team.Andy can run very fast.Andy’s computer chips help him to move and think like a human.2. Read the passage carefully and fill in the file for Andy in exercise 1on page 23.3. Create your own android. Fill in the file in exercise 2 and comparewith your partner.Step 5. Deal with the language points in this part.1. signal vi. & vt. 发信号n. 信号2. goal n.球门；（进球）得分；目标; 目的3. type 1) n. 类型; 2) vt. & vi. 打字4. in a way 在某种程度上in the way of 挡……的道；妨碍on the/one’s way (to) 在(去……)的路上by the way 顺便提一下in no way 决不all the way 自始自终;完全地in this way 用这种方法5. arise (arose, arisen) vi.出现；发生6. with the help of 在……的帮助下7. electronic adj.电子的8. deal with 处理；安排；对付9. watch over 看守; 监视Step 6 WritingWrite a description of your android and what it can do. You may drawa picture of it if you wish. Use your notes and the sample passage on page24 to help you.Step 7 Homework1.Finish writing the composition.2.Review the whole unit3. Complete exercise 1 on page 57Step 8 Blackboard DesignUnit 3 ComputersUsing language1 Two students are talking about information technology.2. in the way of 挡……的道；妨碍on the/one’s way (to) 在(去……)的路上by the way 顺便提一下in no way 决不all the way 自始自终;完全地in this way 用这种方法。

人教版高中英语必修2U3 Computers 知识要点归纳总结

Book II Unit Three Computers1.as a result 结果, 因此,表示原因和结果。

As a result he was given an excellent job.as a result of sth “由于…的原因”，其后跟名词后名词性短语，但不跟句子。

He was late asa result of the snow.2.so…that…如此……以至于……引导结果状语从句有以下结构: so + adj / adv thatso + many / few /much /little +名词thatThe house is so expensive that I can’t afford it.There are so many people that I can’t get in the bus.3. anyhow adv anyway 无论如何，不管怎样He told me not to buy it, but I bought it anyhow.It may be risky but we'll chance it anyhow.11.in a way 在某种程度上in some ways 在某些方面by the way顺便说说；顺便提一下all the way 自始至终；完全地I don’t like the house in a way.A bad thing can be changed into a good thing inaway.4.arise vi. 呈现; 出现; 发生During the night a great snow has arisen.A new difficulty has arisen.5.with the help of / with one’s help借助于，在…的帮助下The old walk with the help of walking sticks.With the teacher’s help, he made a rapid progress.6..deal with应付, 处理; 对待He have a great deal of problems to deal with.Be careful. She is very difficult to deal with.7.watch over 看守,监视watch out 注意；当心He used to be made to watch over sheep.Watch out ! A big dog is coming at you.8. from …on 从……时开始；从……时以后From then on he refused to talk about it.We must study even hard from now on.9. consist of =be made up of…由。

人教版必修二第6讲：Unit3Computers-语法篇(教师版)

Unit3 Computers-语法篇__________________________________________________________________________________ __________________________________________________________________________________ 通本的学掌握在达成的被的用法。

在达成的被一．在达成的被的各样句式1. 一定式：主＋have/has been done. 如：The first subway to cross the Yangtze River has been started.第一条横穿江的地已动工。

2. 否认式：主＋have/has not been done. 如：When and where to have our holiday hasn't been decided yet.我没决定何去何地度假。

3. 一般疑式： Have/Has＋主＋ been done ⋯?如：Has the construction of the underwater tunnel been finished?水下地道的建筑已竣工了？4.特别疑式：疑＋ have/has(＋主 )＋ been done ⋯?如：What parts of Gansu Province have been hit by strong winds and heavy snowfall in the past two days? 在去的两天里，甘省的什么地方遇到大和大雪侵？温馨提示：(1)since then/since ＋从句， in/during the past/last ＋一段， so far, by now, up to now, recently, lately, already, yet 等常用于在达成中。

2020年人教版新课标高一必修2UNIT3COMPUTER—教案7(语法)

人教版新课标高一必修2Unit3Computer—教案7（语法）人教版新课标高一必修2 Unit 3 Computer—教案7 Unit 3 Computer鈥斀贪7（语法） TITLE=人教版新课标高一必修2 Unit 3 Grammar------The Present Perfect Passive Voice Teaching Introduction This is the fourth teaching period of this unit. To test whether students have grasped the important and difficult language points they learned in the last period, the teacher should first offer some revision exercises. The Pattern “And my memory bee so large that I couldn’t believe it.” is a bit important, so special exercise should be designed. This teaching period mainly deals with the grammar: the present perfect passive voice. Firstly, the teacher can ask students to read the reading passage again, tick out the sentences in the present perfect passive voice from the reading passage and translate them into Chinese. Secondly, pare and discover the structure and usages of the present perfect passive voice by giving a lot of example sentences. Thirdly, do the exercises in Discovering useful structures on page 21 and more exercises for students to master the present perfect passive voice. Finally, summarize the present perfect passive voice. Teaching goals: ⅰ Knowledge goals 1.Get students to know the structure of the present perfect passive voice. 2.Let students learn theusages of the present perfect passive voice. ⅱ Ability goals Enable students to use the present perfect passive voice correctly and properly. ⅲ Emotion goals 1.Get students to bee interested in grammar learning. 2.Develop students’ sense of group cooperation. Teaching important points Get students to master the structures and usages of the present perfect passive voice. Teaching difficult points Enable students to learn how to use the present perfect passive voice correctly. Teaching methods 1.Task-based teaching and learning 2.Cooperative learning and practice Teaching procedures Step 1 Revision ( 5 minutes) 1.Check the homework exercises. 2.Dictate some new words and expressions. 3.Translate the sentences into English: 1)他太聪明了，大家都喜欢他。

高中英语人教版必修2unit3ComputersGrammar教案(系列二)

Unit 3 ComputersPeriod 3 Grammar 教学设计AimsTo learn to useThe Present Perfect Passive V oiceTo discover useful words and expression4To discover useful structuresProceduresI. Warming up by reading to the tapeTo begin with, turn to page 18, listening to and reading to the recording of the text WHO AM I? Attention goes to the pauses and intonation, as well as the pronunciation of the reader.II. Discovering useful words and expressionsIn pairs do the exercises 1, 2 and 3 on pages 19 and 20. You must finish them in 10 minutes.III. Learning about grammar1. Passive Voice—Overview2. The Present Perfect Passive VoiceThe structure of The Present Perfect Passive Voice is: have/ has ＋been＋~edIV. Reading aloud and discoveringNow go back to page 18 to read aloud and discover in the text examples of The Present Perfect Passive V oice.V. Discovering useful structureWe shall do grammar exercises 1, 2 and 3 on page 20.VI. Closing down by doing a quizCorrect the mistakes in these passive voice sentencesExample: The house was build in 1880. (correct = The house was built in 1880.)1. 3000 employees were laying off.2. A story will made up.3. An idea was putted forward for discussion.4. Has the book been give back to you yet?5. My bank loan will be payed off in five years time.6. Nothing can be hold against me.7. Our allies will be lend support.8. She has never heard of.9. She was being knocked down by a bus.10. She was letted off with a fine.11. The candle was blow out by the draught.12. The criminal were locked up.13. The flood water was be kept back by barriers.14. The inconvenience will made up for by this money.15. The keys must have been being left behind.16. The old cinema is being pull down.17. The protesters being held back by the police.18. The road was blocking off.19. Thirty more people were laid off last week.20. Your jacket can be hanged up over there.。

人教版必修二第6讲：Unit3 Computers-语法篇(学生版)-word

Unit3 Computers-语法篇____________________________________________________________________________________________________________________________________________________________________通过本节课的学习掌握现在完成时的被动语态的用法。

现在完成时的被动语态一．现在完成时的被动语态的各种句式1. 肯定式：主语＋have/has been done. 如：The first subway to cross the Yangtze River has been started.第一条横穿长江的地铁已经开工。

2. 否定式：主语＋have/has not been done. 如：When and where to have our holiday hasn't been decided yet.我们还没决定何时去何地度假。

3. 一般疑问式：Have/Has＋主语＋been done…?如：Has the construction of the underwater tunnel been finished?水下隧道的建造已完工了吗？4. 特殊疑问式：疑问词＋have/has(＋主语)＋been done…?如：What parts of Gansu Province have been hit by strong winds and heavy snowfall in the past two days?在刚过去的两天里，甘肃省的什么地方受到大风和大雪侵袭？温馨提示：(1)since then/since＋从句，in/during the past/last＋一段时间，so far, by now, up to now, recently, lately, already, yet等常用于现在完成时中。

人教版高一英语必修二 Unit 3 Computers Grammar 课件

1．现在完成时的被动语态的两个助动词，即have/has 和 been，两者缺一不可。
2. 副词的位置 often, usually, always, never, hardly,
seldom等副词置于have/has和been中间。如: [误] Such a man has been hardly
现在完成时的被动语态的用法
1．表示被动的动作在说话之前已经完成，强调过去的动作对现在造成的影响或产生的结果，通常与already，yet，never，recently 等副词及时间状语so far，by now，up till now，since...，before...等连用。
The doctor hasn't been sent for yet. 还没有派人去请医生。(现在应派人去请医生)
A. had changed B. will change C. was changed D. has been changed
连词成句
All men, rescue, firefighters
All men have been rescued by the firefighters.
vaccine(疫苗)， already, take
2．表示一个被动的动作或状态开始于过去，持续到现在，并有可能持续下去，常与for或 since引导的时间状语连用，或用于How long...？句型中。
The machine has been repaired for two hours.
这台机器已经修了两个小时了。(可能还会继续被修)
注意
Unit 3 Computers
一般将来时的被动语态
肯定式：主语+will/shall+ be +过去分词否定式：主语+will/shall+not+be+过去分词疑问式：will/shall ＋主语＋ be+过去分词 ?

人教版高中英语必修2教案Unit 3 Computers

人教版高中英语必修2教案Unit 3 ComputersThe topic of this unit are information technology，history and basic knowledge of computers and robots。

The main theme is computers which is connected with teaching students a little more of the history and development of computers and applications computers will be vital to the modernization of China.It is important for students to understand that the development of computers has been a very recent thing which has only been 100 years since Charles Babbage began to make his first machine that was the predecessor of the personal computers we use today. Understanding the history of computers will help the students to see that there will be many changes ahead in the development of computers and arouse students` interest in learning computers.New words and collocations: calculate, universal, simplify, sum, operator, logical, technology, technological, revolution, artificial, intelligence, intelligent, solve, reality, personal, tube, total, net work, web, application, finance, mobile, rocket, explore, anyhow, goal, happiness, download, virus, signal, type, coach, arise, electronic, appearance, character, mop, niece, from….on…, as a result, so …that…, human race, in a way, with the help of, deal with, watch overAbility aims: arouse the students` great interest in learning computers and let them learn to use them in their daily life.Difficult points: how to develop students` reading skills, express their opinions and use personification and chronology when writing.Important points: let them learn more about the history and basic knowledge of computers and different reading skills.Step 1 Leading in the topic1. Show them some pictures of an abacus, a calculator, a huge computer, a laptop anda PC. In some groups, discuss what they have in common, and then rank them according to the time of their appearance.2. Ask students to give their opinions and remind them of using the following expressions：I think that ……In my opinion, ……I believe that……What`s your reason?Why do you think so ?3. Ask some students to talk about what they know about computers.Step 2. Predicting by talking free1. Ask students to look at the heading and picture to guess what the passage might be about.2. Ask some students to give their opinions by answering the question: How have computers changed our life? Do you know in what ways computers are used today?Step 3. Reading1. Look at the picture and title to predict what the passage might be about？3. Read the text carefully for the information to complete the table below, describing4.根据课文内容填空5. Read the text again to underline the expressions and write down into their notebook after class as homework: begin as, a calculating machine, be built as, as that time, a technological revolution, artificial, intelligence, write a book, make…work as, solve problems, from then on, in size, both…and…, by the 1940s, go by, as a result, change one`s shape, so ….that…, be lonely, stand there by oneself, be connected by, share one`s knowledge with…, become important in…, put…into…., as well as, provide….with…, be filled with…, a devoted friend, the human race5. Listen to the text and skim the text once more and identify the difficult sentences. Let them try analyzing the structures of them.Step 4 Interview gamesAsk students to work in pairs. Suppose one is a journalist and the other is a computer, the journalist is interviewing the computer.Step 5 Learning personification and chronologyPersonification means to treat something as if it were human or had human qualities. It is of the most effective ways of using words figuratively.Chronology means to describe things in order of time which is often used in recounting an event or describing the life of someone. It is an effective way to make a mass of things clear.An version:I, the computer, was a calculating machine in 1642 in France. Then I was built as an Analytical Machine, which was a technological revolution. I became a “universal machine” in 1936 to solve any mathematical problem. I was not very big at first then I became huge, the size of a large room before I was made smaller and smaller.I became clever and quicker and was connected with other computers and turned out to be part of a network in the early 1960s. I was brought into people`s, and many new applications have been found for me.Step 5 Closing down by spoken practiceTalk about the development of computers by answering the questions:1). Do you have your own computer at home?2). How familiar with computers do you think you are?3). How many times do you access the Internet newspaper in a week?4). How many times do you access the World Wide Web in a week?5). How many times do you send the e-mails in a week?6). How many hours do you spend in internet “chat” group in a week?7). Do you think the commercial services on the net are reliable?8). In general, how positive or negative an experience is it for you to work with computers?9). In general, what effects do you think the computer technology has had on your study?10). In general, what effects do you think the computer technology has on human societies and cultures?Step 6 Homework1. Go over the text, and try to learn all the useful words and expressions by heart2. Finish the exercises in comprehending on page 19.Artificial intelligence means man-made intelligence while “real intelligence”is the intelligence that human that human beings are born with. The term “artificial” includes all the calculations that a computer can do. It is different from human intelligence because itonly works with electricity and can be turned off when the machine is unplugged fro the wall.Transistors are a way of sending and storing information that only take up a small space. They meant that computer could be made smaller and they led to computers becoming small and personal.A network is a number of computers that are joined together so that they all show the same program. So a number of students can work in the same room on the same program but at different computers.The Internet (WWW) is a worldwide information resource where people can do research, go shopping or sending messages to friends. When they send messages they do it by “e-mail” or “electronic mail”. The messages are sent by satellite to special place on the ground that can receive them. Them they are sent to the address where the person can open them and read them like a letter.The 1970s was when computers became small enough to come into people`s homes. These computers are called “personal computers”.The second period: Learning about important language pointsKnowledge aims:1. Get students to learn and grasp the important useful new words and expressions: calculating, calculator, PC, laptop, common, simplify, simple-minded, artificial intelligence, anyhow, totally, network, truly, race, birth, go by, deal with, human race2. Important useful sentence patterns:1) I began as a calculating machine in France in 1642.2) As time went by, I was made smaller and smaller.3)And my memory became so large that even I couldn`t believe it.3. Ability aims:Get students to use some useful new words and expressions correctly.4. Emotion aims:Stimulate students` interest in learning English and the spirit of cooperation.5. Important points:Enable them to grasp the usages of such important new words and expressions as common, any how, in common, in one`s opinion, deal with, etc.Get them to master the pattern “And my memory became so large that even I couldn`t believe it.”6. Difficult points:How to get the students to master the usages of the important expressionsGet students to understand some difficult and long sentences.Step 1 RevisionCheck the homework exercises.Ask some students to retell the development of computers.Step 2 V ocabulary study2. Review the new words and expressions in all the parts and have a dictation.Step 3 Practice for useful words and expressions1. Let students do exercise 1 in Learning about Language on page 20 and then check the answers.2. Question students on the meanings of those new words which will be used in Exercise 2 in Learning about Language on page 20.3. Explanation of some important words and expressions.1). common：usual or familiar; happening or found often in many places; shared by, belong to, done by or affecting most of the same group.Snow is common in cold countries.We shared a common purpose.He and I have a common interest; we both collect stamps.The common man in every country is anxious for the world peace.His ordinary supper consists of only bread and milk.This book is intended for the general reader, nor for the specialist.in common withhave nothing / something / little / a lot in common2). calculate: work out by using numbers or one`s judgment; estimateCalculate the cost of a journeyScientists have calculated that the world`s population will double by the end of the century.I calculate that we will reach Beijing at about 3 pm.Be calculated for / toIt is calculated that ….Calculate on / upon3) simplifyThis dictionary tries to simplify the meanings of words.4). so…that…He is such a kind man that everyone likes him.He started so early in the morning that he caught the first train.Those were such expensive books that we couldn`t afford to buy them.I made so many mistakes that I failed the exam.There is so little time that we couldn`t finish the task on time.5). in a wayYou`re quite right in a way.on the waybe in the waymake one`s wayfeel one`s way6). arise: become evident; appear; originateA new difficult has arisen.Use this money when the need arises.Arise from / out of sth. : follow as a result of sth.4. Sentence focus1). I began as a calculating machine in France in 1642.A walking stick, a swimming poo, a washing machine, a sleeping boy, exciting news 动名词作定语表示所修饰的名词的用途2). In 1936 my real father, Alan Turing, wrote a book about how I could be made to work as a “universal machine” to solve any difficult mathematical problem.how I could be made to work as a “universal machine”to solve any difficult mathematical problem.是宾语从句3). however, this reality also worried my designers.However.adv.可是, 然而; conj. 不论, 不管;We haven`t yet won, however, we shall try again.He hasn`t arrived,. He may, however, come later.He can answer the question however(=no matter how) hard it is.However sly(狡猾) a fox may be, it is no match for a good hunter.You will be lucky if he lets you go without a ticket. However, this does not always happen.Sally was amused, but I was very embarrassed.4). As time went by, I was made smaller.as time went by是时间状语从句,主句的谓语形式是一般过去时的被动语态.5). Over time my memory has developed so much that, like an elephant, I never forget anything I have been told. 比喻句子An elephant never forget. 大象永远不会遗忘.6). And my memory became so large that even I couldn`t believe it.用so….that….引导结果状语从句So bright was the moon that the flowers were bright by day. so连同它所修饰的形容词或者副词放在句首,表示强调.Step 4 Using words, expressions and patterns1. Do exercises 1 and 2 on page 56 in Using words and expressions2. Translate the sentences into English, using the words and expressions given in brackets.1). 在老师的帮助下, 你会发现处理和分享信息是不难的. (with the help of)2). 你很容易通过因特网与世界各地的人们进行交流. (communicate)3). 为每位教师购置一台电脑要花费很多钱,但这很值得. (After all)4). 她电脑用得好,现在很少用纸和笔写字了. (so…..that….)5). 如果出现新的情况, 他们会补充新的程序. (make up)Step 5 HomeworkFinish off the Workbook exercisesLearn the new words and expressions by heartThe third period: Learning about grammarStep 1 Revision1. Check the homework exercises.2. Dictate some new words and expressions.3. Translate the sentences into English1). 这消息太好了,简直不能相信.2). 他走得太匆忙了,以至于忘了带伞.Step 2 Grammar revision1. Revise the passive voice:the present passive voice: be + p.p;the present future passive voice: shall / will be + p. p2. Fill in the blanks with the right form of the verb given.1). Sailing races are held (hold) on the lake at 11 Tuesday.2). Food is served (serve) between 12:00 and 14:00 every day.3). Nobody will be allowed (allow) to enter the stadium without a ticket.4). Whoever breaks the law, he will be punished (punish).Step 3 Grammar learning1. Reading aloud and discovering by asking students to go back to page 18 to read the passage Who am I ? to pick out the present perfect passive voice and translate them into Chinese.Over time I have been changed quite a lot.I have been used in offices and home since the 1970s.I never forget anything I have been told.Since the 1970s many new applications have been found for me.I have also been put into space rockets…I have even been robots and used to make mobilphones.2. Look and think to sum up the structure of the present perfect passive voice: Have / has + been + p.pStep 4 Grammar practicehave / has done--------have / has been done现在完成时以及被动语态1.Change the following into the present perfect passive voice.We have made a plan.He has fixed the computer.We have bought a new personal computer.We have found many problems with our new computer.They have built a PC the way we wanted.We have used the computer every day since we bought it.We have written a lot of emails on the computer in the past years.2.Check errors in these sentences.3000 employees were laying off / laid off.A story will / be made up.An idea was putted / put forward for discussion.Has the book been give / given back to you yet?My bank loan will be payed / paid off in five years time.Nothing can be hold / held against me.She has never / been heard of.She was being /x knocked down by a bus.She was letted / let off with a fine.The candle was blow /blown out by the draught.The criminal were / was locked up.The flood water was be / x kept back by barriers.The inconvenience will / be made up for by this money.The keys must have been being / x left behind.The old cinema is being pull / pulled down.The protesters / are being held back by the police.Your jacket can be hanged / hang up over there.Step 5 consolidationAsk the students to do the exercises in Using structures on page 57.Step 6 HomeworkFinish off the workbook exercises.Preview the passage Andy-The Android on page 23. find the sentences in which the present perfect voice has been used, and see if you can put it into the active voice.Computer jargon (计算机行话)Bit : the smallest data unit, can either be a “0” or a “1”Byte: unit of data. See also Kilobyte, Megabyte, Gigabyte and Nibble.CPU: Central Processing Unit, another name for processorData: information stored on a computerDisk: A place to store dataLoad: Get data from a diskSave: Put data on a diskUSB: Universal Serial BusWWW: World Wide Web, part of the InternetThe Fourth period: Using Language: Listening and TalkingKnowledge aims:(1). Get the students to learn some useful new words and expressions;(2). Let the students learn the expressions of giving opinions, reasoning and making a decision: I think that….., in my opinion, ……., I think this is because ……., I don`t likethis ……, the advantage is….., let`s make our decision to do ……, I have decided …..Ability aims: enable them to catch and understand the listening materials to develop their listening ability.Important points: develop the students` listening and speaking ability to master different listening skills. Let them learn how to give opinions, reasons and make a decision.Difficult points: how to get them to listen and understand the materials correctly and how to develop their speaking ability.Step 1 RevisionCheck the homework exercises.Ask some students to translate some sentences using the present perfect passive voice.Step 2 Warming up by talking about ITWhat is information technology/ Information technology (IT) or information and communication technology (ICT) is the technology required for information processing. In particular the use of electronic computers and computer software to convert, store, protect, process, transmit and retrieve information from anywhere, anytime.Step 3 Listening and speaking on page 22Listen to the conversation about different kinds of information technology. Discuss the topic and add some advantages and disadvantages, write down the advantages and disadvantages in the chart on page 22.Step 4 Listening on page 551. Ask students to look at the 4 pictures and listen to the tape to find the three mentioned in the listening text and number them.2. Let them look at the boxes and then listen to the tape part by part to fill in the boxes.Step 5 Talking on page 551. Ask the students to read the directions and the expressions of giving opinions, reasoning and making a decision given below.2. Let the students list the advantages and disadvantages of each robot.3. Ask them have a discussion and make a decision which one is the best and give some reasons.Step 6 listening task on page 581. Ask students to discuss the following questions:What can the androids do for our everyday life?What else can they do for human beings?What can the androids do all these useful things for human beings?What are the similarities between robots and human beings?What are the differences between robots and human beings?Can androids become human beings in the future?2. Ask students to read the directions and listen to the tape to fill in the blank.3. Let students have a discussion on the rights that androids should have so that they will be treated better.Step 7 HomeworkFinish off the Workbook exercisesPreview the passage Andy—the android.The fifth period: Using language: Reading and SpeakingThis unit , the teaching emphasis will be put on developing students` reading abilities by reading extensively and speaking abilities by using the expressions of giving opinions, reasoning and making a decision to discuss in groups the advantages and disadvantages of having sporting robots take the place of human players.Ability aims: train students` speaking ability and enable them to learn how to give opinions, reasoning and make a decision.Important points:(1). Develop the students` reading skills by extensive reading.(2).Train students` speaking abilities by using the expressions giving opinions, reasoning and making a decision.Difficult points: how to get them learn to use reading strategies such as skimming and scanning. How to give opinions, reasons and make a decision.Step 1. Revision1. Check the homework exercises.2. Ask the students to go over Using words and expressions on page 56 to know more about the computers.Step 2. Warming up by a group discussion1. Ask students to talk about Andy—the android.2. Divide the students into several groups to discuss the advantages and disadvantages of having sporting robots to take the place of human players.Step 3 Reading the Sporting Robot on page 58-591. Look at the title and pictures and then guess what the passage is about.2. Skim for the answer to the following questions.What is Hua Fei?What is Hua Fei good at?What can it do?Did Hua Fei win any medal in the 79th Olympics?What problem does Hua Fei have now?3. Scan the text to get the detailed information and then do the exercise 1 on page 59.4. Practice reading aloud the second paragraph while listening to the tape.Step 4 Speaking task on page 59-60Have a discussion to work out the questions to be used to interview Hua Fei. After several minutes, ask some students to play it out.Step 5 Summing upAsk the students to think over the following questions and then sum up the expressions and the passage.1). What expressions do you use when giving opinions, reasons and making a decision.2). How do you feel after reading the passage The Sporting Robot? Do you think what will happen?Step 6 HomeworkFinish off the Workbook exercises.Find out information about robots and share with your classmates.The sixth period: Using language: Speaking, Reading and WritingThe emphasis of this unit is laid on developing students` writing ability which is the best way to test if students have mastered what they have learned.Ability aims: Get the students to learn to think creatively.Important points: Develop students` writing ability by using the expressions to give opinions, reasons and make a decision.Difficult points: How to get them to think creatively to understand others` feelings.Step 1. Revision1. Check the homework.Step 2 Warming upImagine computers can be put into different kinds of android. Show students some pictures of different kinds of android.Talk about football androids or other sporting androids.Step 3 ReadingRead the passage Andy—the android and underline all the useful expressions and new words.Read it again to get the main idea.Step 4 Discussing how to design an androidDiscuss how to design their own android, the following questions may help:What would you like it to be?What would you like it to do?Step 5 Selling computersFirst, have a discussion in pairs intending to sell computer to someone. Then get them write a report to persuade the other to buy the robot by giving 3 or more reasons.Step 6 WritingSuppose you are a famous reporter. You have interviewed Hua Fei, a sporting robot. Now you write a news article for the school newspaper.1. Show them English newspapers and let them discuss how to make a heading for news article.2. Ask students in groups to discuss and decide what the heading will be and what the best things are to be written.3. Students finish their articles.Step 7 HomeworkFinish writing on page 23 and write it down on your exercise book.补充练习1) The teacher told his students to bring out their notebooks to put down what he said.2) The army offices led a / an revolution against the king.3) Many advanced technologies have been introduced to this factory from abroad.4) Use your intelligence, and you are sure to achieve something.5) Mrs. White gave birth to a fine healthy baby in her late thirties.6) Some of the best brains in the province are here tonight.7) One careless move loses the whole game.8) She had to make a / an choice between the two dresses.9) White races are more respected than the black in Africa.10) It is said that he is collecting materials for his book.11) Sara got injured in a train accident half a year ago and suffered from back pain from then on.12) Have these pills three times a day and if they don’t work out, just go back to me.13) All the volunteers were divided into four groups according to their abilities and strengths.14) Bob told us a funny joke. As a result, the whole room was filled with laughter.15) Miss Lin often shares her students’ interesting ideas with their parents by email.16) With the help of the computer and the Internet, I have made several e-friends from America and Canada.17) Making a plan before you do something can help you deal with some unexpected situations.18) In a way, the Internet may have negative influence on teenagers by the bad information on it.19) An expert swimmer was trained and employed to watch over other swimmers at the swimming pool.20) The whole sum was so big that the boss had to have another person calculate it again.1). Though they are twins, they have nothing in common.2). In my opinion, you are wrong.3). Two years went by before we knew it.4). I don`t know how to deal with the bad children.5). The teacher asked the children to make up a story about a trip to the moon.6). It has turned out to be a nice day after all.7). The man is being watched over by the police.8). With the help of the teacher, I succeeded in doing the experiments.9). In a way, the strange animal looks like a bear.10). Computers are used to connect people who are not close enough to speak each other.3.Choose the best answers.1). Millions of pound`s worth of damage _____ by a storm which swept across the north of England last night.A. has been causedB. had been causedC. will be causedD. will have been caused2). A new cinema _____ here. They hope to finish it next month.A. will be builtB. is builtC. has been builtD. is being built3). The police found that the house _____ and a lot of things _____.A. has broken into; has been stolenB. had broken into; had been stolenC. has been broken into; stolenD. had been broken into; stolen4). ____ the sports meet might be put off.-----Yes, it all depends on the weather.A. I have been toldB. I have toldC. I am toldD. I told5). All the preparations for the task _____, and we are ready to start.A. completedB. completeC. had been completedD. have been completed6). Both my brothers work at the power station that _____ at my home town.A. has set upB. has been set upC. was set upD. is set up7). ------ The window is dirty.------ I know. It _____ for weeks.A. hasn`t cleanedB. didn`t cleanC. wasn`t cleanedD. hasn`t been cleaned8). Months ago we sailed ten thousand miles across the open sea, which _____ the Pacific, and we met no storms.A. was calledB. is calledC. had been calledD. has been called9). There have been six Chinese Americans who _____ the Nobel Prize for their outstanding contributions to science so far.A. have been awardedB. had been awardedC. were awardedD. awarded10). Jim asked whether my father was one of those sailors who ____ to Somalia.A. has been sentB. have been sentC. have sentD. has sent11). More and more websites _____ on the Internet in recent years to help children solve psychological problems.A. has set upB. was set upC. have been set upD. had been set up12). When and how to start the new plan at school ____ yet.A. are not decidedB. have not been decidedC. had not been decidedD. has not been decided13). ----Did you see the bottle of cola I drank last night?----I suppose it _____ by now.A. was thrownB. had been thrownC. has been thrownD. is thrown14). Do pay attention to what _____ on my notebook.A. has markedB. has been markedC. had markedD. had been marked15). Although medical science develop rapidly, the useful methods to treat AIDS _____.A. didn’t discoverB. haven’t discoveredC. Hadn’t been discoveredD. Haven’t been discovered16). -----The flight to New York _____ until tomorrow morning-----No wonder I hear so many complains from the passengers.A. has been delayedB. delaysC. delayedD. is being delayed17). So far, five of the twelve bronze animals heads in Yuanmingyuan _____.A. have been returnedB. have returnedC. has been returnedD. returned18). More homeless people _____ by the government this year than last year.A. savedB. have been savedC. had been savedD. have saved4.Turn the following sentences into passive voice.1). They asked me to come a little late.→I ____ _____ to come a little late.2). Women often talk about food and clothes.→Food and clothes _____ often _____ _____ by women.3). Do they make this kind of truck in Nanjing?→_____ this kind of truck _____ in Nanjing?。

(人教新课标)高一英语必修2Unit 3Computers Period 3 Grammar 课件

2) 现在完成进行时 (have/has + been + 现在分词） 2. 七种被动语态形式 1) 一般现在时的被动语态 (am/is/are+ 过去分词）如: The work is done during two days. 2) 一般过去时的被动语态 (was/were+ 过去分词）
The Present Perfect Passive Voice
1. 两种时态 1) 现在完成时(have/has + 过去分词)
现在完成时的动作或情况虽然发生在过去，
但它强调的是与现在的关系，用来说明现在的情况。现在完成时不能与表示确定的过去
时间的状语连用, 如: yesterday, two weeks
ago, in 1978, when I got there 等, 现在完成时常与 already, always, often, ever, never, yet, not...yet, just等不表示明确
的时间副词连用, 还可以和表示时间一直延续到目前的带since, for 的状语及包括现在在内的词连用。如: now, today, this month, this year, recently, these few days 等。不能用在现在完成进行时态的动词，如：be, have, like, love, know, believe, hate等。一般过去时则是表示过去某时发生的动作或情况, 与现在毫无关系。
4. 用在时间和条件状语从句中, 表示将来某时已完成的动作。如： We’ll start as soon as the work has been finished. 工作一完成我们就立即动身。
注意: 1. 副词的位置 often, usually, always, never, hardly, seldom等副词置于have/has和been中间。如: [误] Such a man has been hardly believed. [正] Such a man has hardly been believed.

人教版高中英语必修2Unit 3ComputersPeriod6 Assessment教案13

Unit3 ComputersPeriod 6 AssessmentThe General Idea of This Period：This period is to help the Ss to elevate their acquisition aboutcomputers androids and IT and their ability of employing the words，expressions，grammar learned in this unit.Teaching Aims：1.Elevate efficiently the students’ knowledge about computers，androids and IT.2.Elevate the Ss ability of using the words and expressions and grammar learned in this unit.Teaching Important and Difficult Point：Help the Ss learn to assess whether their knowledge about this topic has increased.Teaching Methods：1.Question-and-answer activity.2.Pair work and group work to make the students work in class.Teaching Aids：1.A multimedia.2.A blackboard.Teaching Procedures：Step 1 GreetingsT：Good morning，boys and girls.Ss：Good morning，Miss.Step 2 RevisionT：So far we have finished this unit which is about...?Ss：It’s about the history and development of computers.S1：I have learned tremendous about the computers，androids and I’ve made up my mind to learn computer science in the future if possible.T：Terrific.Step 3 AssessmentT：Today we are going to see how hard you worked and how much more you know about computers.Now work with your partners and finish these questions first.非测试性评价1.To what extent are computer and Internet becoming part of your life?I use the computer and/or Internet to：—type my homework—draw pictures—play games—communicate with my friends—gather related information for my lessons.—buy the things I like，eg：books and clothes.—listen to music—watch movies.2.What else do you think the computer and Internet will help you to do?_______________________________________________3.Which part（s）of the computer do you think need（s）more improvement?Why?You can use Exercise 1 in the workbook（P56）as reference for the parts of the computer._______________________________________________4.Look at the flow chart explaining how the computer technology has been developing and complete it with your partners.Then give a brief oral presentation on the development of computer technology with the help of the chart.When you’re preparing it，you can refer to the reading passage on Page 18 of the Student’s Book.Your oral presentation will be less than three minutes.测试性评价Ⅰ.单词拼写1.In c with most educated people，he prefers classical music to jazz.2.The invention of computer was a ______（技术的）revolution.3.He is quite clever a boy though he looks s -minded.4.In the past 20 years，my hometown has t changed.puters are often used to deal with information and communicate with each other around the world by the I .6.There are many ways of ______（通讯）in the modern world，such as telephone，fax，and so on.7.In the early 1960s，computers were connected by a n ，so that people could share information and talk to each other.8.He is so clever that he is considered to have high ______（智力）.9.She was ______（徘徊）up and down the road，not knowing what to and where to go.10.Could you tell me the advantages and d of being famous?Possible answers：mon 2.technological 3.simple 4.totally 5.Internet munication work 8.intell-igence 9.wandering 10.disadvantagesⅡ.句型转换/完成句子1.Personally，I think the team who won first place cheated.______ ______ ______，I think the team who won first place cheated.2.I’m afraid something urgent has risen；I won’t be able to see you tonight.I’m afraid something urgent has ______ ______；I won’t be able to see you tonight.3.As time ______ ______（流逝），my memory seems to get worse.4.They’ve bought many books which are ______ ______（适合）teenagers.5.The new type of mobile phone is expensive.______，it’s worth buying it.6.He was foolish enough to accept her invitation.He was ______ foolish ______ he accepted her invitation.7.How are you going to ______ ______（处理）the water pollution of the area?8.You have to ______ ______ ______（做出决定）whether to accept the job or not.Possible answers：1.In my opinion e up 3.goes by 4.suitable for 5.Anyway/Anyhow 6.so，that 7.deal with 8.make a choiceStep 4 The Design of the Writing on the BlackboardUnit 3 ComputersPeriod 6In my opinion so...thatcome up deal+withgoes by make a choicesuitable...forStep 5 Record after TeachingActivities and Research：Whether or not should the computer be used in teaching?Suppose your classroom has been equipped with a computer.Your teachers have used a lot the computer in their teaching.Some of your classmates are for using the computer in teaching，but the others are against using the computer in teaching，and you try to work in two sides：1.Bring this topic to your classmates，and divide the class into two sides，each of which has several small groups.2.Make a list of the advantages/disadvantages about using the computer in teaching based on the opinions or ideas of those who are for/against using the computer in teaching.3.Share your list with other groups，put your lists together to make one comprehensive list out of what each groups has come up.4.You may also want to read and surf the Internet about different views on using the computer in teaching to find more reasons to support your ideas.5.Then，come to a reasonable decision about whether or not the computer should be used in teaching.6.Create a debate in class on whether or not the computer should be used in teaching.7.While debating，you will try to use the following expressions.I think that... Yes，I think so. I don’t think so. I agree that... I don’t agree. I’m afraid not. In my opinion，In addition，Besides，First...，second...，In a word/In brief。

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Unit3 puters-语法篇____________________________________________________________________________________________________________________________________________________________________通过本节课的学习掌握现在完成时的被动语态的用法。

2. 否定式：主语＋have/has not been done. 如：When and where to have our holiday hasn't been decided yet.我们还没决定何时去何地度假。

(2)ever, never, already, yet等副词用于现在完成时的被动语态中常放在has或have之后。

二．现在完成时的被动语态的主要用法和注意事项1．表示过去发生的动作对现在造成的影响与结果。

当动词为短暂动词时，可与already或yet连用，但不能与for或since引导的表示一段时间的状语连用。

如：I'm sorry，but the letters haven't been typed yet.很抱歉，这些信件还没有被打印出来。

(结果是现在还拿不到这些信件)The work has already been finished.工作已完成了。

(结果是现在不用做这项工作了)4.非延续性动词在现在完成时的被动语态中的运用。

非延续性动词，如borrow, finish, begin, start, buy, marry, open, join等构成的现在完成时的被动语态不能与for或since引导的表示一段时间的状语连用，但可与already或yet连用。

如：No books have been bought since last week.自上周以来，没有人来买过书。

误：How long has this book been bought?正：How long ago was this book bought?这本书买了多久了？温馨提示：这类动词的否定式可表示动作的持续过程，具有持续性，因而可与since或for构成的时间状语连用。

如：The book has not been borrowed since last month.自上个月以来这本书就没有被借过。

5.动词短语是一个不可分割的整体，在被动结构中要保持完整，不可省略动词短语中的介词或副词。

如：No news has been heard about him since he left his hometown.自从他离开家乡，就没有关于他的任何消息传来。

例1.(2014甘肃天水期中)In the last few years, thousands of films _________all over the world.A. have producedB. have been producedC. are producingD. are being produced解析：in the last few years 用于现在完成时,因为它是指时间从过去延续到现在.又因为谓语的动作不是主语发出的,故要用被动语态,have been made是对的.直译过来是：在过去的几年里数千部电影在全世界被制作.即：全世界在过去几年里制作了数千部电影。

综合可知本题答案。

答案：B例2. (2014湖南长沙月考) The boys followed the marks that they__________, until finally they found their way back to the campsite.A. leftB. have leftC. had leftD. have been left解析：由语境可知本句所表达句意：这些男孩沿着他们留下的记，直到最后找到了返回营地的路。

留下的记的动作发生在follow之前应该用过去完成时。

由此可知本题答案。

答案：C例3. (2015·天津)Despite the previous rounds of talks, no agreement______ so far by the two sides.A. has been reachedB. was reachedC. will reachD. will have reached解析：句意：尽管之前多轮谈判，但到目前为止双方没有达成任何协议。

根据句中的时间状语so far “到目前为止”可知用现在完成时。

主语agreement与reach为被动关系，根据句意可知本题答案。

答案：A例4. (2014天津高考) We won’t start the work until all the preparations __________.A. are being madeB. will be madeC. have been madeD. had been made解析：通常说来。

在时间状语从句中使用一般现在时代替将来时，前面的主句中使用将来时。

在高中英语中也使用现在完成时代替将来时，表示到将来某个时间已经完成的事情。

句义：直到所有的准备工作都做好以后，我们才开始工作。

由语境可知preparations与动词make之间是动宾关系，所以综合可知要用现在完成时的被动。

答案：C例5.( 2014年甘肃庆阳期末) If nothing _______, the ocean will turn into fish deserts.A. doesB. is doneC. had been doneD. will do解析：句意：如果不做点什么的话，海洋会变成鱼的沙漠。

本题考查被动语态。

nothing不能发生do 的动作，所以要用被动语态，根据条件句的主将从现，主句用一般将来时，从句用一般现在时。

综合可知要用一般现在时的被动语态。

答案：B基础演练一．把下列句子变为被动语态(每空一词)1. We have pleted all the preparations for the task, and we're ready to start.→All the preparations for the task_____ ________ ________by us and we're ready to start.2. This pany has produced a new type of puter recently.→A new type of puter______ ______ _________by this pany recently.3. They have interviewed several teachers for the job.→Several teachers for the job _____ ______ __________by them.4. George has sent some text and pictures to his friend's cellphone.→Some text and pictures________ ________ ________to his friend's cellphone by George.5. They have developed some programmes for the human resource department of their pany.→Some programmes______ _____ ________by them for the human resource department of their pany. Keys:1.have been pleted 2. has been produced3. have been interviewed4.have been developed5. have been sent巩固提高一．单项选择。

( )1. Do you know the thief ______ by the police?A. has caughtB. has been catchingC. will catchD. has been caught( )2.－How many times______ not to play with fire?－I’m sorry. I’ll never do that again.A. do you tellB. had you toldC. are you toldD. have you been told ( )3. --What’s happening in the new area?--New houses_______ recently over there.A. are builtB. builtC. have builtD. have been built( )4. There is a police car in front of our neighbor’s house. What do you suppose _______?A. did happenB. has happenedC. is happenD. has been happened ( )5. All the preparations for the project _______, and we’re ready to start.A. pletedB. had been pletedC. pleteD. have been pletedKeys:1-5DDDBD二．用所给词的适当形式填空1. More than 5,000 used bikes__________________(collect)since the two brothers set up the organization.2. Since the cause of this disease________________________(discover),now we need to develop the medicine to treat it.3. Over the past ten years，this town________________(hit)twice by earthquakes.4.—Will the lecture be held at 4 o'clock this afternoon?—No. It________________(put) off till tomorrow afternoon.5. Her novel is very popular among people of all ages; so far it___________________(translate) into 25 languages.Keys:1.have been collected 2.has been discovered3.has been hit4.has been put5.has been translated一．用所给词的适当形式填空1. The plan________(study)by the experts for three times now.2. I like these English songs and they________ (teach) many times on the radio.3. Though we don't know what was discussed, yet we all feel the topic________(change)．4. —How much do you know about the Youth Olympic Games to be held in Nanjing?—Well, the media ________(cover) it in a variety of forms.5. —Your English is very good.—I'm still nervous. After all, it is only the second time that I ________(meet) foreign guests.6. If the paper ________(finish), please hand it in.7. I don't believe you've already finished reading the book—I ________(lend) it to you this morning!8. You've failed to do what you________(expect) to and I'm afraid the teacher will blame you.9. Every year a flood of farmers arrive in Shenzhen for the moneymaking jobs they ________(promise)before leaving their hometowns.10. With the help of high technology, more and more new substances________(discover) in the past years. Keys:1.has been studied2.have been taught3.has been changed4.have covered5.have met6.has been finished7.lent8.were expected 9．have been promised 10.have been discovered二．单项选择。