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1、 英语教学课件系列Goforit!九年级Unit 13We are trying to save the earth. Section A Grammar FocusWe are try to save the earth.Present progressiveThe river used to be so clean.used to The air is badly polluted.Passive voiceNo scientific studies have shown that sharks fins are good for health.Present perferctWe sho
2、uld save the sharks.Model verbsGrammar FocusJoe: _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 correct forms of the verbs in brackets.4
3、aHave taken helpedconsideredhad hadJoe: 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 _ (wait) any longer to take action!tookthinkcametryi
4、ngwait 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 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 reusabl
5、e bags instead of plastic bags. 4bcan could would have to should must may/mightmayshouldcouldwould Make a list fo thingsthat people can do to help the environment and discuss your list with your partner.4cA: I think that everyone should use public transportation.B: I disagree. its diffcult for paren
6、ts with young children to use public transportation.use public transportation. Discussing.4cuse public transportationtake your own shopping bags when go shoppingreduce the use of air conditioners in summerturn off the lights when you leave the roomgrow more plants.A: I think that everyone should tak
7、e your own shopping bags when go shopping.B: I agree. its good for the environment. A: I think that everyone should reduce the use of air conditioners in summer.B: I disagree. the summer is so hot, especially in sourth China. Without air-conditioners, people may not have the patience to work.A: I th
8、ink that everyone should turn off the lights when you leave the room.B: I agree. its good to save energy resources.A: I think that everyone should use public transportation.B: I disagree. its diffcult for parents with young children to use public transportation.A: I think that everyone should grow m
9、ore plants.B: I agree. growing more plants will provide us more fresh air and make our plant more beautiful. 现在进行时(1)含义:表示正在发生或进行的动作。(2)基本结构:主语 + be + 现在分词(be 的形式随主语的变化而变化)(3)基本用法:表示现在正在进行的动作。特征:常常与now或具体的时间连用,有时句中会有感官动词来提示,或通过上下文来暗示。表示现阶段一直进行的动作。这类动词常常是延续性动词。常于at present, this week, these days等连用。表
10、示主语的特征、性格、能力等本单元复习现在进行时、used to句型、被动语态、现在完成时和情态动词。现在完成时(1)含义:表示过去发生的动作对现在还有影响。(2)基本结构:主语 + have / has + 过去分词(3)基本用法:表示过去发生的动作,但强调对现在产生影响。特征:不能与表示具体的时间状语连用。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。常常与since, for, in the past + 时间名词,in the last +时间名词等时间状语连用,而且谓语动词要求是延续性动词。表示一种“经历或体验”,即可以表示经历过也可以是从来都没有经历过。被动语态初中阶
11、段我们学习了七种被动结构,归纳如下:(1)一般现在时是被动语态: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
12、动词情态动词表示说话人对某一动作或状态的态度,如认为“可能”、“应当”、“必要”等。情态动词本身有一定的意义,但不能单独作谓语,也没有人称和数的变化。后面一般跟动词原形。used to 结构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。在英式英语中,它的疑问式应当是:Used 主语to sth?否定式应当是used not to或use(d)nt to。He used to stay u
13、p late. 他过去常熬到很晚。used to 结构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在英式英语中: 它的疑问式应当是:Used 主语to sth否定式应当是used not to.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.
14、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, twi
15、ce.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).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 c
16、lassroom _(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 worked have lived is cleaned is used will be built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.Ne
17、ed C.Might D.Must2. - May I go to the cinema, Mum? - Certainly, but you _ be back by 11 oclock. A.can B.may C.must D. need3. you _ worry about me. Its nothing serious. A.cant B.mustnt C. neednt D. wont4. - Excause me. Is this the right way to the Summer Palace? - Sorry, Im not sure. but it _ be. A.m
18、ught B.mustnt C.cant D.must5. The man in the office _ be Mr.Black, because he went home just now. A.musnt B.may not C.cant D.needntuse 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)_?is used to hang outis used to sleeping late/
19、 staying upDid Ken used to be afraid od dogs1. He promised to pick me up at the school gate. However, he _ yet. A. didnt arrive B. doesnt arrive C. isnt arriving D. hasnt arrived2. Ba Jin, one of the greatest writers in China, _ as “Peoples Writer”. A. is regarded B. has regarded C. is regarding D.
20、regardsChoose the best answer.3. Where is Tom? He _ in his room. A. is readingB. readsC. readD. was reading 4. May I go out now, Dad? No. You _ let your mother know first. A. can B. may C. need D. must5. Her son _ Coke, but now he _ milk.A. used to drink ; is used to drinking B. used to drinking ; d
21、rinksC. is used to drinking ; used to drink D. is used to drink ; is drinking1. (2013江苏淮安) Its getting dark. Please _ the light. A. turn on B. turn off C. turn down D. turn around2. (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
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