Unit_13_Were_trying_to_save_the_earth_Section_A_4a--4c(Grammar_Focus).ppt

1、Unit 13 We are trying to save the earth.,Section A Grammar Focus,Grammar Focus,Joe: _ you ever _ (take) part in an environmental project? Ken: Yes, I have. I _ (help) with a Clean- Up Day last year. It was_(consider) the biggest clean-up project this city _ever _(have).,Fill in the blanks with the c

2、orrect forms of the verbs in brackets.,4a,Have taken,helped,considered,had,had,Joe: How many people _ (take) part? Ken: I _ (think) more than 1,000 people _(come) to help out. Joe: Thats fantastic! I guess everyone in this city is _ (try) to improve the environment. Ken: Yes, we cant affort to _ (wa

3、it) any longer to take action!,took,think,came,trying,wait,1) 時(shí)態(tài)： 現(xiàn)在進(jìn)行時(shí)：什么時(shí)候使用？ 結(jié)構(gòu)是什么？ 標(biāo)志性詞語有哪些？ 現(xiàn)在分詞的構(gòu)成規(guī)則？ 現(xiàn)在完成時(shí)：什么時(shí)候用？ 結(jié)構(gòu)是什么？ 標(biāo)志性詞匯有哪些？ 過去分詞的構(gòu)成規(guī)則？,現(xiàn)在進(jìn)行時(shí) （1）含義：表示現(xiàn)在正在進(jìn)行的動(dòng)作。 表示現(xiàn)階段一直進(jìn)行的動(dòng)作。 （2）基本結(jié)構(gòu)： am/ is/are + 現(xiàn)在分詞 （3）標(biāo)志詞：now, right now, Look, Listen at present, this week, these days,（4）現(xiàn)在分詞的構(gòu)成： 一般情

4、況下在動(dòng)詞詞尾加-ing。如：go-going。 以不發(fā)音的字母e結(jié)尾的動(dòng)詞，去掉e加-ing。如： have-having。 以一個(gè)輔音字母結(jié)尾的重讀閉音節(jié)，雙寫最后一個(gè)字 母，再加-ing。如：stop-stopping。,現(xiàn)在完成時(shí) （1）含義： 表示過去發(fā)生的動(dòng)作，對(duì)現(xiàn)在造成的影響。 表示過去發(fā)生的動(dòng)作或存在的狀態(tài)一直延續(xù)到現(xiàn)在，還可能繼續(xù)下去。 （2）基本結(jié)構(gòu)：have / has + 過去分詞 （3）標(biāo)志詞：already, yet, ever, never, once, twice, recently, so far, for+時(shí)間段, since+時(shí)間點(diǎn)/從句， in the

5、past + 時(shí)間名詞， in the last +時(shí)間名詞。,（4）過去分詞的構(gòu)成： 一般情況下在動(dòng)詞詞尾加-ed。如：work-worked。 以e結(jié)尾的動(dòng)詞后只加-d。如：close-closed。 以輔音字母+y結(jié)尾的動(dòng)詞，應(yīng)將y改為i再加ed。如：study-studied。 以重讀閉音節(jié)結(jié)尾的動(dòng)詞，要雙寫末尾的輔音字母再加-ed。如：stop-stopped。 不規(guī)則動(dòng)詞的過去分詞：AAA型；AAB型；ABA型；ABB型；ABC型。,2) 語態(tài)： 被動(dòng)語態(tài)：與主動(dòng)語態(tài)區(qū)別？ 構(gòu)成是什么？ 一般現(xiàn)在時(shí)、一般過去時(shí)、一般將來時(shí)和情態(tài)動(dòng)詞的被動(dòng)語態(tài)的結(jié)構(gòu)分別是什么？ 3) 情態(tài)動(dòng)詞：有無

6、人稱和數(shù)的變化？ 后接動(dòng)詞的什么形式？ 情態(tài)動(dòng)詞有哪些？各表示什么意思？ 4) used to 表示什么意思？后接什么？否定句和一般疑問句的形式是什么？ used to 和 be used to 的區(qū)別是什么？,被動(dòng)語態(tài) 初中階段我們學(xué)習(xí)了8種被動(dòng)結(jié)構(gòu)，歸納如下： （1）一般現(xiàn)在時(shí)的被動(dòng)式：am / is / are + 過去分詞 （2）現(xiàn)在完成時(shí)的被動(dòng)式： have / has + been + 過去分詞 （3）現(xiàn)在進(jìn)行時(shí)的被動(dòng)式： am/ is/ are + being + 過去分詞 （4）一般過去時(shí)的被動(dòng)式：was / were + 過去分詞 （5）過去進(jìn)行時(shí)的被動(dòng)式： was / we

7、re + being + 過去分詞 （6）過去完成時(shí)的被動(dòng)式：had + been + 過去分詞 （7）一般將來時(shí)的被動(dòng)式： will / be going to be+ 過去分詞 （8）含有情態(tài)動(dòng)詞的被動(dòng)式： 情態(tài)動(dòng)詞+be +動(dòng)詞的過去分詞。,情態(tài)動(dòng)詞 情態(tài)動(dòng)詞表示說話人對(duì)某一動(dòng)作或狀態(tài)的態(tài)度，如認(rèn)為“可能”、“應(yīng)當(dāng)”、“必要”等。 can/could能夠； may/might可能、可以； would愿意、將要； shall將（第一人稱）； should應(yīng)該； must必須 need需要； have to 不得不； 情態(tài)動(dòng)詞還可以表示推測(cè)： 肯定推測(cè)， 不定推測(cè)， 否定推測(cè),情態(tài)動(dòng)詞練習(xí),

8、1.- _ you pass me a pen? Id like to write down the phone number. - Sure. Here it is. A.Can B.Need C.Might D.Must 2. - May I go to the cinema, Mum? - Certainly, but you _ be back by 11 oclock. A.can B.may C.must D. need 3. you _ worry about me. Its nothing serious. A.cant B.mustnt C. neednt D. wont,4

9、. - Excause me. Is this the right way to the Summer Palace? - Sorry, Im not sure. but it _ be. A.might B.mustnt C.cant D.must 5. The man in the office _ be Mr.Black, because he went home just now. A.musnt B.may not C.cant D.neednt,use to 練習(xí),A 她過去常常周末和朋友閑逛。 She _ with friends on weekds. B 他習(xí)慣于每晚睡得很晚。

10、 He _ at night. C. Ken used to be afraid of dogs.(改為一般疑問句) _?,used to hang out,is used to sleeping late/ staying up,Did Ken use to be afraid of dogs,used to 結(jié)構(gòu) used to意為“過去常常做某事”，指的是過去的習(xí)慣性動(dòng)作，目的在于與現(xiàn)在形成對(duì)照。used to是個(gè)情態(tài)動(dòng)詞，其中的to是不定式符號(hào)，后面跟動(dòng)詞原形。 在美式英語中： 它的疑問式是：Did 主語use to do sth 否定式是：主語didnt use,I. 用所給詞的適當(dāng)

11、形式填空。 1. The old man used _ (be) a teacher. 2. We should _ (clean) the room every day. 3. Look! Tom _ (sleep) in his room. 4. Lots of trees _ (plant) on the hill every year. 5. He _ (live) here for 20 years.,to be,clean,is sleeping,are planted,has lived,用括號(hào)里所給動(dòng)詞的正確形式填空,1. The girl _(dance) in the cl

12、assroom. 2. Its 5 oclock now. Mike _ (have)dinner. 3. -_ you ever _ (be) to the US? - Yes, twice. 4. - May I speak to John? - Sorry, he _(go) to New York. he will be back in two days. 5. -Did you go to Jacks birthday? - No,I _(not invite).,is dancing,is having,Have been,has gone,was not invited,5. -

13、Do you know Mr.White well? - Yes. He _(work) for the WWF for two years. 6. I _ (live) here since 1990. 7. - Do you often clean your classroom? - Yes. Our classroom _(clean) every day. 9.- Whats this? -Its a CD. This CD _(use) for learning English. 10. Anew highway in my hometown _ (bulid) next month

14、.,has worked have lived is cleaned is used will be built,1. He promised to pick me up at the school gate. However, he _ yet. A. didnt arrive B. doesnt arrive C. isnt arriving D. hasnt arrived 2. Ba Jin, one of the greatest writers in China, _ as “Peoples Writer”. A. is regarded B. has regarded C. is

15、 regarding D. regards,Choose the best answer.,3. Where is Tom? He _ in his room. A. is readingB. reads C. readD. was reading 4. May I go out now, Dad? No. You _ let your mother know first. A. can B. may C. need D. must,5. Her son _ Coke, but now he _ milk. A. used to drink ; is used to drinking B. u

16、sed to drinking ; drinks C. is used to drinking ; used to drink D. is used to drink ; is drinking,1. (2013江蘇淮安) Its getting dark. Please _ the light. A. turn on B. turn off C. turn down D. turn around 2. (2013湖北隨州)How does Jack usually go to work? He _ drive a car, but now he _ there to lose weight.

17、 A. used to; is used to walk B. was used to; is used to walking C. was used to; is used to walk D. used to; is used to walking,感悟中考,3. (2013山東棗莊) In the last ten month, September Miracle(奇跡)_on CCTV for more than five times and is popular all over the country. A. has played the piano B. has given ou

18、t their song disks C .has written songs D. has performed 4. (2013廣東) Not only my friends but also I_ interested in football and Messi is our favorite star. A. be B. am C. is D. are,5. (2013湖北宜昌)At present, one of the best ways to study is working in groups. More chances _ to students to learn from each other. A. offer B. are offered C. have offered D. are offering,感悟中考,Fill in the blanks with the appropriate modal verbs from the box.,People _ think that big things _ be done. However, many forget that saving the