必修二 3.6《 unit3 computer_period 4 grammar》.ppt
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1、新课标人教版课件系列,高中英语 必修2-3.8,Learning about Language,The Present Perfect Passive Voice,Revision,Check the homework exercises.,Ex1: 1 totally 2 revolution 3 artificial intelligence 4 birth 5 simple-minded 6 go by 7 deal with 8 network 9 truly 10 anyway,Ex2: revolution; network; went by; totally; truly; si
2、mple-minded; Anyway; deal with,Ex3: 1 totally 2 amazed 3 exciting 4 excited 5 cheaply 6 unlucky,revision,Will/shall +be + V过去分词,构成形式:,一般将来时被动语态,(Future Passive Voice),shall 用于第一人称:I /we will 用于任何人称,Be going to be +V过去分词 Be to be +V过去分词,否定句: 一般疑问句:,在will/shall后+not,把will /shall 提前,The students of cla
3、ss one will clean the playground. The playground will be cleaned by the students of class one. We are going to hold a meeting on Saturday afternoon. A meeting is going to be held (by us) on Saturday afternoon. The twins are to repair the machine tomorrow. The machine is to be repaired (by the twins)
4、 tomorrow.,The host will give the winner a computer as the prize. The winner will be given a computer as the prize (by the host). A computer will be given (by the host) to the winner as the prize.,Are you familiar with these computers? Can you call them?,palmtop,laptop/ notebook,desktop PC,WW PC wri
5、st-worn/wearable PC,A wrist-worn PC has been invented recently.,A pen-like computer has already been developed.,Can you make more sentences similar to the sentences above? “have/has been done ?”,replace,The buildings; earthquake; destroy,1.As the year have gone by, I have been made smaller and small
6、er. 2. A wrist-worn PC has been invented recently. 3. The sports meeting has already been held in our school.,Do the underlined parts have something in common?,Discovering:,Has/have been done,现在完成时,被动语态,现在完成时的被动语态,the Present Perfect Passive Voice,现在完成时的被动语态的用法 1.表示一个被动的动作发生在说话之前,强调对现在造成的影响和结果. The
7、door has been locked. 2.表示一个被动的动作或状态开始于过去,持续到现在,并可能持续下去,常与for 或since引导的时间状语连用,或用于How long.?句型中. The important problem has been discussed for nearly two weeks. How long has the machine been used?,现在完成时的标志:recently /already/yet for+一段时间 /since+时间点,句型 He has been sent to study the new technology in the
8、 company. 否定句: He has not been sent to study the new technology in the company. 一般疑问句: Has he been sent to study the new technology in the company? 特殊疑问句: Where has he been sent to study the new technology? How many shopping centers have been built in this city?,在have /has 后加not,have /has 提前,疑问词+hav
9、e (has)+主语+been+ V过去分词.+.?,1.They not have finished the homework which should be finished yesterday. 2.Does the new program have been developed for the robot? 3.How many have teachers been interviewed for the job?,Has the new program,have not,teachers have,correct mistakes,Great changes _ in the cit
10、y , and a lot of factories _. A. have been taken place ; have been set up B. have taken place; have been set up C. have taken place; have set up D. were taken place; were set up,B,只有及物动词才有被动语态,不及物动词(词组)没有被动语态, 如:happen, take place, die, appear, disappear, fail, remain, lie, last, sit , stand, break
11、out, come true, belong to等 What has happened to your brother? What was happened to your brother?,1.The child has been taken good care by Grandma all these years. 2.A notice has been put on the wall. 但许多不及物动词加介词或副词构成的短语 动词,相当于及物 动词,也可以有被动语态。但短语动词是一个不可分割的整体,变为被动语态时,不可丢掉构成短语的介词或副词。,correct mistakes,of,
12、up,二、现在完成时的被动语态应注意的几个问题 1.请注意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. 请注意与一般过去时的被动语态的区别。一般过去时的被动语态所表示的动作或状态与现在的情况没有联系,而现在完成时的被动语态则强调与现在情况的联系. The bridge was built last year. 这桥是去年建成的。 The bridge has been built. 这桥已经建好了。,3.请注意一些特殊动词,如borrow, finish, begin, buy, start, return, marry, open, join等构成的现
13、在完成时的被动语态不能与表示一段时间的状语连用。若要表达相应的意思,则需改换动词或时态。如: 误 How long has this book been bought? 正 How long ago was this book bought? 但这类动词的否定式可表示动作的持续过程,具有连续性,因而可与since或for引导的时间状语连用。如: No books have been bought since last week. 自上周以来,没有人来买过书。,三、 巩固练习 1.How many times_ not to play with fire? Im sorry. Ill never
14、 do that again. A. do you tell B. had you told C. are you told D. have you been told 2.The fire _ to the fifth floor. _ all the people _? A. has got; Have; been saved B. has been got; Have; saved C. has got; Do; save D. has got; Have; saved 3.Do you know the thief _ by the police? has caught B. has
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