1、Unit 3The Internet語法導(dǎo)學(xué)達標(biāo)檢測Period ThreeDiscovering Useful StructuresThe present perfect passive voicePART 1語法導(dǎo)學(xué)感悟規(guī)律 重點難點剖析感知以下句子，完成方框下的小題語法感知1.Much has been written about the wonders of the World Wide Web.2.Peoples lives have been changed by online communities and social networks.3.Many people have b

2、een helped by the club.4.Jans life has been greatly improved by the Internet.5.A kind of new PC has been built with more functions.1.以上句子中所使用的時態(tài)和語態(tài)是 。2.現(xiàn)在完成時的被動語態(tài)的構(gòu)成為： ?，F(xiàn)在完成時的被動語態(tài)have/hasbeen過去分詞現(xiàn)在完成時的被動語態(tài)表示到現(xiàn)在為止某事已經(jīng)被完成或被做。這種語法項目既要表示現(xiàn)在已經(jīng)完成又要表示被動的含義，因此很多同學(xué)在具體運用中容易顧此失彼，難以把握。運用現(xiàn)在完成時的被動語態(tài)時應(yīng)掌握以下幾個問題：一、現(xiàn)在

3、完成時的被動語態(tài)的常用句式語法精析肯定式主語have/has been done.否定式主語have/has not been done.一般疑問式Have/Has主語been done.？特殊疑問式疑問詞have/has主語been done.？He has been admitted to the club.他已被接納為俱樂部成員了。Toms novel has not been published.湯姆的小說還沒有被出版。Has his bike been repaired?他的自行車修好了嗎？Who has been invited?誰受到了邀請？二、現(xiàn)在完成時的被動語態(tài)的用法1.表示

4、被動的動作在說話之前已經(jīng)完成，強調(diào)過去的動作對現(xiàn)在造成的影響或產(chǎn)生的結(jié)果，通常與already，yet，never，recently等副詞及時間狀語so far，by now，up till/to now，since等連用。The room has already been cleaned.這個房間已經(jīng)被打掃干凈了。(現(xiàn)在已經(jīng)不用打掃房間了)2.表示一個被動的動作或狀態(tài)從過去開始一直持續(xù)到現(xiàn)在，并可能繼續(xù)持續(xù)下去，常與for或since等引出的時間狀語(從句)連用，或用于how long引出的句子中。The machine has been repaired for two hours.這臺機

5、器已經(jīng)被修了兩個小時了。(可能還會繼續(xù)被修)3.用在條件狀語從句中，表示將來某時已經(jīng)完成的動作。You shouldnt leave school before your homework has been finished.在你的作業(yè)沒完成之前你不應(yīng)該離開學(xué)校。三、使用現(xiàn)在完成時的被動語態(tài)要注意6點問題1.與一般過去時的被動語態(tài)的區(qū)別。一般過去時的被動語態(tài)所表示的動作或狀態(tài)與現(xiàn)在的情況沒有聯(lián)系，而現(xiàn)在完成時的被動語態(tài)則強調(diào)與現(xiàn)在的情況有聯(lián)系。The park was opened to the public last year.去年這個公園向公眾開放。(說明動作發(fā)生于過去)The park

6、has been opened to the public.這個公園已向公眾開放。(說明動作發(fā)生于過去，但對現(xiàn)在有影響，即現(xiàn)在公園已經(jīng)向公眾開放了)2.非延續(xù)性動詞，如borrow，finish，begin，start，buy，marry，open，join等構(gòu)成的現(xiàn)在完成時的被動語態(tài)不能與表示一段時間的狀語連用。若要表達相應(yīng)的意思，則要改換動詞或時態(tài)。The work was finished two weeks ago.這項工作于兩周前被完成。The work has been finished.這項工作已經(jīng)被完成。3.短語動詞是一個不可分割的整體，在被動語態(tài)中要保持完整性，其中的介詞或副

7、詞不可省略。It is said that the problem has been looked into.據(jù)說已經(jīng)調(diào)查了這個問題。4.只帶有一個賓語的動詞變?yōu)楸粍诱Z態(tài)時，將主動語態(tài)的賓語變?yōu)楸粍诱Z態(tài)的主語。We have built many houses in the past ten years.Many houses have been built in the past ten years.5.帶有雙賓語的動詞，如give，send，bring，take，teach，show，tell，make，sing，write，read，sell，buy，tell，pay，lend，pass

8、，promise等，變?yōu)楸粍诱Z態(tài)時，可將其中一個賓語變?yōu)橹髡Z，另一個保留不動。 We have given him the book.He has been given the book.The book has been given to him.6.帶有復(fù)合賓語的動詞變?yōu)楸粍诱Z態(tài)時，只能將賓語變?yōu)橹髡Z，原來的賓補改為主語補足語。原來省略to的不定式作賓補的，被動語態(tài)中要用帶to的不定式。 I have told them to help you.They have been told to help you.PART 2達標(biāo)檢測當(dāng)堂檢測 基礎(chǔ)達標(biāo)演練1.Jacks boss has alw

9、ays praised him for his devotion to work.Jack by his boss for his devotion to work.2.They have found a good place to build a temple in the village.A good place to build a temple in the village.3.We havent yet decided how to solve that difficult technological problem.How to solve that difficult techn

10、ological problem yet.4.I have asked her to help you.She to help you.用現(xiàn)在完成時的被動語態(tài)改寫句子has always been praisedhas been foundhasnt been decidedhas been asked5.He has given the child some interesting books.The child some interesting books.Some interesting books the child.has been givenhave been given toLi

11、 Ming：Hi，Lin Tao.How nice to see you on the first day of the new term!Lin Tao：Yes.Nice to see you again.Li Ming：I know that your parents 6. (work) in Yushu for years.Can you tell me something there after the earthquake?Lin Tao：Of course.Since the earthquake 7. (happen)，many soldiers 8. (send) there，

12、and many kinds of supplies(物資供應(yīng)) 9._ (carry) there from all over the country.Now，most people there 10. (live) a happy life again.Li Ming：How about the schools there?.語法填空(用所給詞的正確時態(tài)、語態(tài)填空)havebeenworkinghappenedhavebeensenthavebeencarriedlive/arelivingLin Tao：Several new schools 11. (set) up and also some schools which 12. (damage) in the earthquake 13._(rebuild).So all the students can go back to school