高中英語(yǔ)必修二 3.3 Discovering Useful Structure 教學(xué)設(shè)計(jì)新

1、Unit 3 the Internet Period 3 Discovering Useful StructureThe Present Perfect Passive Voice 導(dǎo)學(xué)案This teaching period mainly deals with grammar “The Present Perfect Passive Voice.” To begin with, teachers should lead students to revise what they have learned about the Present Perfect Passive Voice. And

2、 then, teachers move on to stress more special cases concerning this grammar。 This period carries considerable significance to the cultivation of students writing competence and lays a solid foundation for the basic appreciation of language beauty. The teacher is expected to enable students to maste

3、r this period thoroughly and consolidate the knowledge by doing some exercises. 1. Guide students to review the basic usages of the Present Perfect Passive Voice2. Lead students to learn to use some special cases concerning the Present Perfect Passive Voice flexibly.2. Enable students to use the bas

4、ic phrases structures flexibly.3. Strengthen students great interest in grammar learning.1. Help students to appreciate the function of the Present Perfect Passive Voice in a sentence2. Instruct students to write essays using the proper the Present Perfect Passive Voice.觀察下列句子特點(diǎn)，總結(jié)共同點(diǎn)。1(教材P28)Much h

5、as been written about the wonders of the World Wide Web2(教材P28)But the Internet has done much more for people than simply make life more convenient3(教材P28)Many people have been helped by the club4(教材P28)She no longer feels lonely, and her company has become quite successful5(教材P32)Today I thought Id

6、 blog about a question that has been asked many timeshow do you stay safe online and avoid bad experiences on the Internet?共同點(diǎn)：has/have done Has/have been done一：常與現(xiàn)在完成時(shí)連用的時(shí)間狀語(yǔ)有：already已經(jīng)yet已經(jīng)recently/lately最近since then從那時(shí)起ever since自那以來ever曾經(jīng)so far迄今為止by now到現(xiàn)在為止for a long time 很長(zhǎng)一段時(shí)間in recent years

7、在最近幾年里in/during/over the past/last years在過去的幾年里二：現(xiàn)在完成時(shí)態(tài)的意義。1現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)強(qiáng)調(diào)一個(gè)發(fā)生在過去的被動(dòng)性的動(dòng)作，動(dòng)作已完成并強(qiáng)調(diào)對(duì)現(xiàn)在造成的影響或結(jié)果，主語(yǔ)和謂語(yǔ)之間為被動(dòng)關(guān)系。The door has already been locked.門早已經(jīng)被鎖上了。I have been employed at the job since 2015.自從2015年，我就做這份工作。2基本構(gòu)成現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)的結(jié)構(gòu)為has/have been done。A lot of money has been spent to protect

8、the old temple by now.到目前為止已投入了大筆錢來保護(hù)這座古廟。These trees have been watered lately.那些樹最近已澆水。2)帶有雙賓語(yǔ)的動(dòng)詞，如give, send, bring, take, teach, show, tell, make, sing, write, read, sell, buy, pay, lend, pass, promise等，變?yōu)楸粍?dòng)語(yǔ)態(tài)時(shí)，一般將間接賓語(yǔ)變?yōu)楸粍?dòng)語(yǔ)態(tài)的主語(yǔ)，若將直接賓語(yǔ)變?yōu)楸粍?dòng)語(yǔ)態(tài)的主語(yǔ)時(shí)，間接賓語(yǔ)前面要用相應(yīng)的介詞。We have given him the book.He has been

9、 given the book.The book has been given to him.現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)的用法1現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)同它的主動(dòng)語(yǔ)態(tài)一樣，強(qiáng)調(diào)過去的動(dòng)作對(duì)現(xiàn)在造成的影響或結(jié)果，通常與already, yet, just, never, recently等副詞連用。The machine has already been repaired機(jī)器已經(jīng)修好了。2表示一個(gè)被動(dòng)的動(dòng)作或狀態(tài)開始于過去，持續(xù)到現(xiàn)在，并可能持續(xù)下去，常與for或since引導(dǎo)的時(shí)間狀語(yǔ)連用，或用于“How long ？”句型中。Financial problems of the company have

10、 been discussed for nearly two hours公司的財(cái)務(wù)問題已被討論了近兩個(gè)小時(shí)了。3用在時(shí)間或條件狀語(yǔ)從句中，表示將來某時(shí)已完成的動(dòng)作，即用現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)代替將來完成時(shí)的被動(dòng)語(yǔ)態(tài)。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。使用現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)要注意的問題1現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)、現(xiàn)在進(jìn)行時(shí)的被動(dòng)語(yǔ)態(tài)及一般過去時(shí)的被動(dòng)語(yǔ)態(tài)的區(qū)別The machine has been repaired.(說明動(dòng)作發(fā)生在過去，對(duì)現(xiàn)在有影響，“現(xiàn)在修好了”)

11、 The machine is being repaired now.(說明動(dòng)作正在進(jìn)行)The machine was repaired yesterday.(只說明動(dòng)作發(fā)生在 過去)2非延續(xù)性動(dòng)詞，如borrow, finish, begin, start, buy, marry, open, join等構(gòu)成的現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)不能與表示一段時(shí)間的狀語(yǔ)連用。若要表達(dá)相應(yīng)的意思，則要改換動(dòng)詞或時(shí)態(tài)，例如：工程已開始三個(gè)月了。The project has been started for three months.(F)The project has been on for three m

12、onths. (T)3.帶有復(fù)合賓語(yǔ)的動(dòng)詞變?yōu)楸粍?dòng)語(yǔ)態(tài)時(shí)，若賓語(yǔ)補(bǔ)足語(yǔ)為省略to的不定式充當(dāng)時(shí)，在被動(dòng)語(yǔ)態(tài)中需將省掉的to加上。The boss has made his company offer more chances for people to work.His company has been made to offer more chances for people to work.(4)動(dòng)詞短語(yǔ)是一個(gè)不可分割的整體，在被動(dòng)語(yǔ)態(tài)中要保持其完整性，其中的介詞或副詞不可省略。Its said that the problem has been looked into.據(jù)說已經(jīng)調(diào)查了這個(gè)

13、問題?？偨Y(jié)：現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)的結(jié)構(gòu)肯定式主語(yǔ)have/has been done否定式主語(yǔ)have/has not been done一般疑問式Have/Has主語(yǔ)been done？特殊疑問式疑問詞have/has主語(yǔ)been done？1時(shí)態(tài)填空。1.He _(select)to take part in the sports meeting【答案】has been selected他已被挑選出來參加運(yùn)動(dòng)會(huì)。2.The ink_(remove) from his overcoat【答案】has not been removed墨跡還沒有從他外套上去掉。3.Has the date for the next meeting_(decide)?【答案】been decided下次會(huì)議的日期已確定了嗎？4.How long has the battery_(change)?【答案】not been changed電池多久沒有更換了？2.句型轉(zhuǎn)換：The children have already been told