人教版必修二Unit3Grammar現(xiàn)在完成時的被動語態(tài)(共24張)課件

1、人教課標(biāo) 高一 必修 2 Unit 3溫馨提示 請拿出你的導(dǎo)學(xué)案，典型題本，雙色筆和練習(xí)本，還有你的激情。全力投入會使你與眾不同你是最優(yōu)秀的，你一定能做的更好！GrammarPassive Voice經(jīng)典題型：1. They clean the classroom every day.2.They cleaned the classroom yesterday.3. They will clean the classroom tomorrow.4. They must clean the classroom after class.The classroom is cleaned by the

2、m every day. The classroom was cleaned by them yesterday.The classroom will be cleaned by them tomorrow.The classroom must be cleaned by them after class.Summary:被動語態(tài)的構(gòu)成：be + done（過去分詞） 、一般過去時：was done were1.一般現(xiàn)在時： am is done are3.一般將來時：will be done shall4. 含有情態(tài)動詞: can may must be done should have t

3、o現(xiàn)在完成時的被動: has /have been+done1.表示過去開始的被動動作一直持續(xù)到現(xiàn)在，常與之連用的時間狀語有：for +一段時間，since +時間狀語（從句），these days, so far, up to now, in the last / past few years等。 e.g Up to now, half of the boos have been read by the students.2. 表示某被動動作對現(xiàn)在造成的影響或結(jié)果，常與already, yet, just, ever, never, recently等連用。 e.g.I have alrea

4、dy been introduced to Mr. Smith. 一般過去時則是表示過去某時發(fā)生的動作或情況, 與現(xiàn)在沒有關(guān)系。一般過去時常與表示確定的過去時間的狀語連用, 如: yesterday, two weeks ago, in 1978, 等, e.g.The machine has been repaired 機(jī)器已經(jīng)修好了。 (說明動作發(fā)生在過去，對現(xiàn)在有影響，修好了。) The machine was repaired yesterday 機(jī)器昨天修了。(只說明動作發(fā)生在昨天。)1. 現(xiàn)在完成時被動語態(tài)肯定句主語+has/ have been +動詞的過去分詞Her motor

5、bike has been stolen.她的摩托車被盜了。All the offices have been linked by computer.所有的售票處由計算機(jī)聯(lián)網(wǎng)工作。句型2.They havent been told about it yet.否定式：_+及物動詞的過去分詞。3.Have his books been sold out? Yes. So you cant buy one now. 一般疑問句形式：_+及物動詞的過去分詞。have / has + not + beenHave / Has +主語+ beenHow many experiments have been

6、 done by the students this month?特殊疑問句形式：疑問詞 + have / has + been +及物動詞的過去分詞。 并不是所有動詞都有被動語態(tài) happen, take place, break out, belong to, cost, last等不及物動詞或詞組無被動語態(tài)。 誤 Great changes have been taken place in China since 1978. 正 Great changes have taken place in China since 1978.一、單項(xiàng)選擇1.Both my brothers work

7、 at the power station that _ in my hometown. A. has set up B. has been set up C. was set up D. is set up2.-_ the sports meet will be put off. A. Ive been told B. Ive told C. Im told D. I toldB A 3. All the preparation for the task _, and were ready to start. A. completed B. complete C. had been comp

8、leted D. have been doneD 4. - How long _ at this job? - Since 1990. A. were you employed B. have you been employed C. had you been employed D. will you be employedB 5.When and where to go for the on-salary holiday _ yet. A. are not decided B. have not been decided C. is not being decided D. has not

9、been decidedD 6. -Did you move into the new house? - No. The rooms _ yet. A. were being painted B. are painting C. have not painted D. have not been painted D 二、改錯1. A personal computer has bought by us.A personal computer has been bought by us.2. Many problems has been found with our new computer.M

10、any problems have been found with our new computer.5. The computer was used every day since we bought it.The computer has been used every day since we bought it.6. A lot of e-mails had written on the computer in the past 5 years.A lot of e-mails have been written on the computer in the past 5 years.

11、三、用動詞正確形式填空。1. First as a PC and then as a laptop, I _ (use) in offices and homes since the 1970s. 2. Over time my memory _ (develop) so much that, like an elephant, I never forget anything I _(told).3. Since the 1970s many new applications _ (find) for me. have been used has developedhave been told

12、 have been found4. I have also _(put) into robots and used to make mobile phones as well as _(help) with medical operations. 5. I _(put) into space rockets and sent to explore the Moon and Mars. been put helphave even been put The buildings, destroy, earthquake The buildings have been destroyed in the earthquake; 四. Making up sentences using present perfect passive voice:machin