九年级英语全册Unit13We’retryingtosavetheearthSectionA（GrammarFocus_4c）课件（新版）人教新目标版

1、Unit 13We are trying to save the earth!SectionA(Grammar Focus-4c)take part inaffordturn offreusablepay fortake actiontransportation参加参加v. 买的起；承担的起后果买的起；承担的起后果关掉关掉adj. 可重复使用的可重复使用的付费；付出代价付费；付出代价采取行动采取行动n. 运输业；交通运输运输业；交通运输Words and expressions ReviewWere trying to save the earth. Present progressiveTh

2、e river used to be so clean.used to The air is badly polluted.Passive voiceNo scientific studies have shown that shark fins are good for health.Present perferctWe should help save the sharks.Model verbsGrammar FocusJoe: _you ever _ (take) part in an environmental project?Ken: Yes, I have. I _ (help)

3、 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.Have taken helpedconsideredhad had4a4aJoe: How many people _ (take) part?Ken: I _ (think) more than 1,000 people _(come) to help o

4、ut.Joe: Thats fantastic! I guess everyone in this city is _ (try) to improve the environment.Ken: Yes, we cant afford to _ (wait) any longer to take action!tookthinkcametryingwait Fill in the blanks with the appropriate modal verbs from the box. People _ think that big things _ be done to save the e

5、arth. 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 reusable bags instead of plastic bags. 4b4bcan would could have to should must may/mightmaymustcouldcouldI think its a great idea that

6、 you now _ pay for plastic bags in some stores. And instead of driving to school or work, you _ ride your bike or walk. If its far, you take the bus. All these small things _ add up and become good things that _ improve the environment. Lets take action now! have tocancouldcan Make a list of things

7、that people can do to help the environment and discuss your list with your partner.4 4c cA: I think that everyone should use public transportation.B: I disagree. Its difficult for parents with young children to use public transportation.use public transportation. Discussing.use public transportation

8、take 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 take your own shopping bags when go shopping.B: I agree. Its good for the environment. A: I think that everyone should r

9、educe the use of air conditioners in summer.B: I disagree. The summer is so hot, especially in south China. Without air conditioners, people may not have the patience to work.A: I think that everyone should turn off the lights when you leave the room.B: I agree. Its good to save energy resources.A:

10、I think that everyone should use public transportation.B: I disagree. Its difficult for parents with young children to use public transportation.A: I think that everyone should grow more plants.B: I agree. Growing more plants will provide us more fresh air and make our planet more beautiful. 现在进展时现在

11、进展时1含义：表示正在发生或进展的动作。含义：表示正在发生或进展的动作。2根本构造：根本构造：主语主语 + be + 现在分词现在分词be 的形式随主语的变化而变化的形式随主语的变化而变化3根本用法：根本用法：表示现在正在进展的动作。特征：常常与表示现在正在进展的动作。特征：常常与now或具体的时或具体的时间连用，有时句中会有感官动词来提示，或通过上下文来暗示。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。表示现阶段一直进展的动作。这类动词常常是延续性动词。表示现阶段一直进展的动作。这类动词常常是延续性动词。常与常与at present, this week, these days等

12、连用。等连用。表示主语的特征、性格、能力等表示主语的特征、性格、能力等本单元复习现在进展时、本单元复习现在进展时、used to句型、被动语态、句型、被动语态、现在完成时和情态动词。现在完成时和情态动词。现在完成时现在完成时1含义：表示过去发生的动作对现在还有影响。含义：表示过去发生的动作对现在还有影响。2根本构造：主语根本构造：主语 + have / has + 过去分词过去分词3根本用法：根本用法：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。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

13、到现在，还可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。常常与能继续下去。常常与since, for, in the past + 时间名词，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。动词。表示一种表示一种“经历或体验，即可以表示经历过也可以是从经历或体验，即可以表示经历过也可以是从来都没有经历过。来都没有经历过。被动语态被动语态初中阶段我们学习了七种被动构造，归纳如下：初中阶段我们学习了七种被动构造，归纳如下：1一般现在时的被动语态：一般现在时的被动语态：am / is / ar

14、e + 过去分词过去分词2现在完成时的被动式：现在完成时的被动式： have / has + been + 过去分词过去分词3现在进展时的被动式：现在进展时的被动式：am/ is/ are + being + 过去分词过去分词4一般过去时的被动式：一般过去时的被动式：was / were + 过去分词过去分词5过去进展时的被动式：过去进展时的被动式：was / were + being + 过去分词过去分词6过去完成时的被动式：过去完成时的被动式：had + been + 过去分词过去分词7一般将来时的被动式：一般将来时的被动式：will / be going to be+ 过去分词过去分词8

15、含有情态动词的被动式：含有情态动词的被动式：情态动词情态动词+be +动词的过去分词。动词的过去分词。情态动词情态动词情态动词表示说话人对某一动作或状态的态度，如认为情态动词表示说话人对某一动作或状态的态度，如认为“可可能、能、“应当、应当、“必要等。情态动词本身有一定的意义，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。原形。used to 构造构造used to意为意为“过去常常做某事，指的是过去的习惯性动作，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。目的在于与现在形

16、成对照。used to是个情态动词，其中的是个情态动词，其中的to是是不定式符号，后面跟动词原形。在美式英语中，它的疑问式是：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 主语主语use to do sth？否认式是：主语？否认式是：主语didnt use。在英式英语中，它的疑问式应当是：在英式英语中，它的疑问式应当是：Used 主语主语to sth？否认式应当是否认式应当是used not toHe used to stay up late. 他过去常熬夜到很晚。他过去常熬夜到很晚。辨析：辨析：join, join in 和和take part in join加入组织，团体

17、，党派等，有作为其加入组织，团体，党派等，有作为其中的一个成员的含义中的一个成员的含义;后面也可以加表示人的名词，表示和后面也可以加表示人的名词，表示和某人一起参加某活动某人一起参加某活动join in 加入一种具体活动。加入一种具体活动。take part in指参加会议或群众性活动等，着重说指参加会议或群众性活动等，着重说明句子主语参加该项活动并在活动中明句子主语参加该项活动并在活动中发挥作用。发挥作用。Will you join us in the discussion? 你参加我们的讨论吗？你参加我们的讨论吗？ She joined the Young Pioneers. 她参加了少先

18、队。她参加了少先队。 Why didnt you join in the talk last night? 昨晚你为什么没参加座谈？昨晚你为什么没参加座谈？Did you take part in the sports meet? 你参加运动会了吗？你参加运动会了吗？1. Have you _ a club? Yes, Im in a swimming club and I often _ the swimming training. A. joined; take part in B. joined; join C. taken part in; join D. taken part in;

19、 join in 2. Were going for a picnic. Would you like to_ us? Why not? Lets go! A. attendB. join C. join inD. take part in afford是动词，意为是动词，意为“买得起买得起,担负得起，通常与担负得起，通常与can, could, be able to连用连用,多用于否认句中。多用于否认句中。They couldnt afford $50 for a ticket. 他们拿不出他们拿不出50美元买美元买一张票。一张票。 afford后面常跟带后面常跟带to的动词不定式。的动词不

20、定式。We cant afford to go abroad this summer. 今年夏天我们没今年夏天我们没有足够的钱出国。有足够的钱出国。例句：例句：Miss Taylor never wastes money on anything too expensive, even though she can _to. She has donated much of the money she saved to charities. A. afford B. allow C. remind D. payafford知识链接知识链接I. 用所给词的适当形式填空用所给词的适当形式填空。1. T

21、he 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 livedII.用括号里所给动词的正确形式填空用括号里所给动词的正确形式填空。1. The girl _(dance) in

22、 the classroom now.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 dancingis havingHave beenhas gonewas not invited6.

23、-Do you know Mr. White well? - Yes. He _(work) for the WWF for two years.7. I _ (live) here since 1990.8. - 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. A new highway in my hometown _ (bulid) next month.

24、has worked have lived is cleanedis used will be built情态动词练习情态动词练习1.- _ you pass me a pen? Id like to write down the phone number. - Sure. Here it is.2. - 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.

25、A.cant B.mustnt C. neednt D. wont4. - Excuse me. Is this the right way to the Summer Palace? - Sorry, Im not sure. But it _ be. A. might B. mustnt 5. The man in the office _ be Mr.Black, because he went home just now. A.musnt B.may not C.cant D.needntuse to 练习练习A 她过去常常周末和朋友闲逛。她过去常常周末和朋友闲逛。She _ with

26、 friends on weekends.B 他习惯于每晚睡得很晚。他习惯于每晚睡得很晚。 He _ at night.C. Ken used to be afraid of dogs.(改为一般疑问句改为一般疑问句)_?used to hang outis used to sleeping late/ staying upDid Ken use to be afraid of dogs1. He promised to pick me up at the school gate. However, he _ yet. A. didnt arrive B. doesnt arrive C. i

27、snt 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. 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 ; drinksC. is used to drinking ; used to drink D. is used to drink ; is drinking1. (江苏淮安江苏淮安) Its getting dark. Please _ the light. A. t