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本文(人教版九年级英语下册Unit_13_We're_trying_to_save_the_earth_Section_A_4a--4c(Grammar_Focus)课件.ppt)为本站会员(李国权)主动上传,道客多多仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知道客多多(发送邮件至docduoduo@163.com或直接QQ联系客服),我们立即给予删除!

人教版九年级英语下册Unit_13_We're_trying_to_save_the_earth_Section_A_4a--4c(Grammar_Focus)课件.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 co

2、rrect 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 _ (wai

3、t) any longer to take action!,took,think,came,trying,wait,1) 时态: 现在进行时:什么时候使用?结构是什么?标志性词语有哪些?现在分词的构成规则?现在完成时:什么时候用?结构是什么?标志性词汇有哪些?过去分词的构成规则?,现在进行时 (1)含义:表示现在正在进行的动作。表示现阶段一直进行的动作。(2)基本结构:am/ is/are + 现在分词 (3)标志词:now, right now, Look, Listen at present, this week, these days,现在完成时 (1)含义: 表示过去发生的动作,对现在

4、造成的影响。 表示过去发生的动作或存在的状态一直延续到现在,还可能继续下去。 (2)基本结构:have / has + 过去分词 (3)标志词:already, yet, ever, never, once, twice, recently, so far, for+时间段, since+时间点/从句, in the past + 时间名词, in the last +时间名词。,(4)过去分词的构成: 一般情况下在动词词尾加-ed。如:work-worked。 以e结尾的动词后只加-d。如:close-closed。 以辅音字母+y结尾的动词,应将y改为i再加ed。如:study-studi

5、ed。 以重读闭音节结尾的动词,要双写末尾的辅音字母再加-ed。如:stop-stopped。 不规则动词的过去分词:AAA型;AAB型;ABA型;ABB型;ABC型。,2) 语态: 被动语态:与主动语态区别?构成是什么? 一般现在时、一般过去时、一般将来时和情态动词的被动语态的结构分别是什么? 3) 情态动词:有无人称和数的变化?后接动词的什么形式?情态动词有哪些?各表示什么意思? 4) used to 表示什么意思?后接什么?否定句和一般疑问句的形式是什么?used to 和 be used to 的区别是什么?,被动语态 初中阶段我们学习了8种被动结构,归纳如下: (1)一般现在时的被动

6、式:am / is / are + 过去分词 (2)现在完成时的被动式:have / has + been + 过去分词 (3)现在进行时的被动式: am/ is/ are + being + 过去分词 (4)一般过去时的被动式:was / were + 过去分词 (5)过去进行时的被动式: was / were + being + 过去分词 (6)过去完成时的被动式:had + been + 过去分词 (7)一般将来时的被动式: will / be going to be+ 过去分词 (8)含有情态动词的被动式: 情态动词+be +动词的过去分词。,情态动词 情态动词表示说话人对某一动作或状

7、态的态度,如认为“可能”、“应当”、“必要”等。can/could能够; may/might可能、可以; would愿意、将要; shall将(第一人称); should应该; must必须need需要; have to 不得不;情态动词还可以表示推测:肯定推测, 不定推测, 否定推测,情态动词练习,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?- Cer

8、tainly, 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. - 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

9、Mr.Black, because he went home just now.A.musnt B.may not C.cant D.neednt,use to 练习,A 她过去常常周末和朋友闲逛。 She _ with friends on weekds. B 他习惯于每晚睡得很晚。He _ at night. C. Ken used to be afraid of dogs.(改为一般疑问句) _?,used to hang out,is used to sleeping late/ staying up,Did Ken use to be afraid of dogs,used to 结

10、构 used to意为“过去常常做某事”,指的是过去的习惯性动作,目的在于与现在形成对照。used to是个情态动词,其中的to是不定式符号,后面跟动词原形。 在美式英语中: 它的疑问式是:Did 主语use to do sth 否定式是:主语didnt use,I. 用所给词的适当形式填空。 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 h

11、ill every year. 5. He _ (live) here for 20 years.,to be,clean,is sleeping,are planted,has lived,用括号里所给动词的正确形式填空,1. The girl _(dance) in the classroom. 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 wi

12、ll 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. -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

13、 _(clean) every day. 9.- Whats this?-Its a CD. This CD _(use) for learning English. 10. Anew highway in my hometown _ (bulid) next month.,has workedhave lived is cleanedis 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 a

14、rriving D. hasnt arrived 2. Ba Jin, one of the greatest writers in China, _ as “Peoples Writer”.A. is regarded B. has regarded C. is regarding D. regards,Choose the best answer.,3. Where is Tom? He _ in his room. A. is reading B. readsC. read D. was reading 4. May I go out now, Dad? No. You _ let yo

15、ur 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. used to drinking ; drinks C. is used to drinking ; used to drink D. is used to drink ; is drinking,1. (2013江苏淮安) Its getting dark. Please _ the light. A. turn on B. turn

16、 off C. turn down D. turn around 2. (2013湖北随州)How does Jack usually go to work? He _ drive a car, but now he _ there to lose weight. 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山东枣庄) In the last ten month,

17、 September Miracle(奇迹)_on CCTV for more than five times and is popular all over the country. A. has played the piano B. has given out their song disks C .has written songs D. has performed 4. (2013广东) Not only my friends but also I _ interested in football and Messi is our favorite star. A. be B. am

18、 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 thing

19、s _ be done. However, many forget that saving the earth begins with small things. For example, you _ save electricity by turning off the lights when you leave a room. You _ also use paper or reusable bags instead of plastic bags.,4b,may,should,could,would,Homework,1.write an article to show in what way we students can protect the environment.,

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