2020-2021學(xué)年新教材英語外研版必修第三冊教案：Unit 3 The world of science 突破·語法大沖關(guān) Word版含解析

1、好好學(xué)習(xí)，天天向上現(xiàn)在完成時的被動語態(tài)觀察例句1i guess you have been asked about the title of your book before.2new inventions like 3d printers have been used to make replacement hearts and bone parts。3i guess someone has asked you about the title of your book before.4people have used new inventions like 3d printers to ma

2、ke replacement hearts and bone parts.5something bad has happened to him.6the door has opened of itself.7the orphan has been well looked after.歸納用法一、現(xiàn)在完成時被動語態(tài)的構(gòu)成現(xiàn)在完成時被動語態(tài)的結(jié)構(gòu)為has/have been done,使用has been done時主語為單數(shù)，使用have been done時主語為復(fù)數(shù)。二、現(xiàn)在完成時被動語態(tài)的概念現(xiàn)在完成時被動語態(tài)強調(diào)一個發(fā)生在過去的被動性動作，它有兩層意思:(1)動作已經(jīng)完成,強調(diào)對現(xiàn)在造成

3、的影響或結(jié)果：（2）主語與謂語動詞之間為被動關(guān)系。如:our classroom has been cleaned，you neednt clean it now。我們的教室已經(jīng)被打掃過，你現(xiàn)在沒必要再打掃了。these flowers have been watered，you can go home。這些花已經(jīng)被澆水了，你可以回家了。三、現(xiàn)在完成時被動語態(tài)的用法1用于不知道動作執(zhí)行者是誰時his bike has been stolen.他的自行車被人偷了。(不清楚是被誰偷的)2用于動作執(zhí)行者是泛指或不言自明時not a book in the library has been taken

4、 away.圖書館里的書沒有一本被人拿走。(沒人拿書，泛指）3用于可以說出動作執(zhí)行者但動作承受者是談話中心或特別需要強調(diào)時my watch has been repaired.我的表修好了.(表修好了是談話的主旨，是誰修好無關(guān)緊要.不必提及)4用于出于委婉、禮貌而避免提及自己或?qū)Ψ綍renough has been said here on this question。關(guān)于這個問題，這里已經(jīng)談得不少了。（意思是說：大家不要再說了）5用于文章標(biāo)題、廣告、新聞等中(常用省略助動詞be的被動語態(tài))road blocked.道路已被堵塞(新聞報道，省略了助動詞has been)6用于動作的執(zhí)行者不是人時

5、 the house has been washed away by the storm.那棟房子已被暴風(fēng)雨沖走了。7用于商務(wù)書信中書信起草人是以公司名義時your letter has been received.來信已收到。四、現(xiàn)在完成時被動語態(tài)的各種句型變換從現(xiàn)在完成時被動語態(tài)結(jié)構(gòu)has/have been done可以看出has/have為助動詞，因此現(xiàn)在完成時被動語態(tài)的各種句型變換均應(yīng)借助于has/have來完成。構(gòu)成否定句時直接在has/have后面加not，構(gòu)成一般疑問句時將has/have提前，如：has this bridge been finished? 這座橋竣工了嗎？h

6、is bad habits havent been done away with。他的壞習(xí)慣還沒有改掉。the blackboard has been cleaned，hasnt it？ 黑板已經(jīng)擦過了,是嗎？即時訓(xùn)練把下列句子改成被動句。1we have cleaned our classroom.our classroom has been cleaned.2he has sold out all his bikes in the shop。all his bikes in the shop have been sold out.3he hasnt finished his homewor

7、k。his homework hasnt been finished.4grandma has taken care of the child all these years.the child has been taken care of by grandma all these years.5he has repaired the machine for two hours。the machine has been repaired for two hours。單句語法填空1paper money has been used (use） for over a thousand years。

8、 2great changes have taken （take) place in my hometown and a lot of factories have been set(set） up. 3this book has been translated(translate) into many languages up to now。4the fire has got （get） to the fifth floor.i wonder whether all the people have been saved（save)5-we want to sit at the table n

9、ear the window. im sorry，but it has been taken(take）already. 6some of the chapters（章)have been read （read） by many students。 7why dont you go to the bookstore to buy some books？many new books have been brought （bring） there。 8this month till now，three films have been shown（show） in that small villag

10、e。 9do you know the thief has been caught （catch） by the police？10my sister is working in the power plant that has been used （use) for just one year. 。短文語法填空good morning，everybody!this has been my second trip 1.to tokyo。and i would like to thank this school because i 2.have been invited (invite) to

11、you this talk.i would like to focus 3.mainly(main) on how to improve your english for 4。practical (practice） purposes.it is my belief to improve a language.it is important for one to continuously use that language.in english，as in most languages，there are 4 main aspects of speaking,listening，reading

12、 and writing.i believe two 5。activities (activity） can help all four of these。firstly reading in the newspaper 6.has been noted （note) to be able to help improve ones english。however,i 7.personally(personal) feel that reading books is more useful.while my english 8.has been improved (improve） by new

13、spaper reading，i feel that it may be too boring and not interesting to secondary school students。books，on the other hand,of the past time,have many levels。the second activity that 9。has been thought （think) to be useful is watching the news。i know i just said that the news is boring，but watching the news can be interesting to students。another advantage of watching the news as a post reading is that you can learn how to use body language while 10.sp