人教版九年级英语下册第13单元课件

1、Unit13 Unit13 Unit13 Were trying to save the earth!Section A 1a -2d（第1课时） Unit13 Were trying to saveSe1. We should put up notice to stop from _ （乱扔）.2. The teacher asked us to find a way to pick up the coins at the _（底部）of the bottle.3. There are no more fish for _ （渔夫）to catch in the river.4. We sh

2、ould take the paper bags to go shopping instead of the _（塑料）ones.5. Could you please tell us another _（优点） of riding bike to work?【检查预习】litterbottomfishermanplasticadvantage1. We should put up notice to noise pollutionair pollutionwater pollution1a. Write the words related to different kinds of poll

3、ution in the box below.(Pairwork or groupwork)loud music cars rubbish planeslittering ships factories smokingbuilding houses mobile phones_loud musiccars rubbishplaneslitteringshipsfactoriessmokingbuilding housesmobile phonesnoise pollutionair pollutionwa1b. Listen and complete the sentences What wa

4、s the problem? The river was _.Even the bottom of the river was full of _. There were no more _ for fishermen to catch.What caused the problem?People are throwing _into the river.Factories are putting _ into the river.How should the problem be solved?We should write to the _ and ask them to _ the fa

5、ctories. Everyone should helpto _ the river.really dirtyrubbishfishlitterwastegovernmentclose downclean up1b. Listen and complete the se人教版九年级英语下册第13单元课件PPT 1. The air is badly polluted because there are _ on the road these days. 2. Factories that burn coal also _ the air with a lot of black smoke.

6、3. There is also too much rubbish and waste. People _ things every day. 4. People are also litter in _ like parks. This is turning beautiful places into ugly places.2a Listen to the interview. the kinds of pollution that Jason and Susan talk about.A. waste pollution B. air pollution C. noise polluti

7、on D. water pollutionCircle2b. Listen again and complete the sentences.litteringmore carspolluteare throwing away2a Listen to the interview. 人教版九年级英语下册第13单元课件PPT Read the conversation quickly, find out the answer to the question.What kinds of pollutionare mentioned in this conversation?2d. Air pollu

8、tion and waste pollution. 2.Read the conversation again and complete the blanks. Pollution Ways to solve the problem Air pollution Waste pollution Take the bus or subway instead of driving;ride a bike.bring a bag to go shopping; only use wooden chopsticks or plastic forks at home;Throw rubbish in th

9、e bins What kinds of pollutionare 人教版九年级英语下册第13单元课件PPTThis is turning beautiful places into ugly ones. turn into 把变成e.g. The icy rain seemed like to turn into snow. 渐渐地冻雨又变成雪花的模样。 Language pointsThis is turning beautiful plac2. Its good for health and it doesnt cost anything! cost v. 花费；使付出 指花费金钱，主语

10、通常是物。cost的过去式和过去分词均为cost。 e.g. The new shirt cost Mr Wang 200 yuan. 王先生花了200元买了新衬衫。 How much does the new computer cost? 新电脑花了多少钱？2. Its good for health and ittake, spend, pay & costtake，spend，pay和cost都可以表示“花费”，但它们的用法各有不同。1) take多表示花费时间，常用于It takes sb. some time to do sth.这一句型中，其中it作形式主语。 e.g. It us

11、ually takes me 40 minutes to cook the dinner.take, spend, pay & cost2) spend多表示花费时间和金钱，主语通常是人，常用于sb. spend(s) some time / money on sth.和sb. spend(s) some time / money (in) doing sth.两种句型。 e.g. David spent 2,000 yuan on the new machine. My father spends an hour (in) watching the news on TV every day.

12、2) spend多表示花费时间和金钱，主语通常是人，常用于s3) pay多表示花费金钱，主语通常是人，常用于sb. pay(s) some money for sth.句型。 e.g. Tommy paid 20 yuan for his breakfast yesterday.4) cost多表示花费金钱，主语通常是物，常用于sth. cost(s) (sb.) some money.句型。 e.g. The new dress cost Linda 88 yuan.3) pay多表示花费金钱，主语通常是人，常用于sb. pa根据句意用take, spend, pay或cost的适当形式填空

13、。1. That new car _them lots of money.2. Mona _ 50 yuan on the books just now.3. It usually _ me an hour to do my homework.cost?spent?takes根据句意用take, spend, pay或cost的适当c4. You should _? some time practising your pronunciation.5. My brother _?6, 000 yuan for the new computer yesterday.spendpaid4. You

14、should _? some3. So together, our actions can make a difference and lead to a better future! make a difference (to) 表示(对)产生影响或作用 e.g. Do you think his words would make any difference to the final decision? 你认为他的话会对最后的决定产生影 响吗？ 3. So together, our actions caThe new teacher always encourages little To

15、m. This has made a big difference to him.新来的老师总是鼓励小汤姆，这对他影响很大。The new teacher always encoura用动词的适当形式填空。1. Were trying _ (save) the earth.2. There used to _ (be) clean and beautiful.3. There are too many _ for _ to catch (fish).4. Its bad for environment to use _ (wood) chopsticks.to savebefishwooden

16、fishermen用动词的适当形式填空。to savebefishwooden用方框中所给词的适当形式填空。1. Dont throw _(垃圾) everywhere.2. In winter, many people burn _(煤) to keep warm.3. The police found a body at the _(底部) of the lake.4. The _(花费) of living in big cities is very high.5. He keeps a rabbit in a big _(木制的) box.cost wooden, coal , bot

17、tom, littercost woodencoalbottomlitter用方框中所给词的适当形式填空。cost wooden, 根据句意用take, spend, pay或cost的适当形式填空。1. That new car _them lots of money.2. Mona _ 50 yuan on the books just now.3. It usually _ me an hour to do my homework.costspenttakes根据句意用take, spend, pay或cost的适当c4. You should _ some time practisin

18、g your pronunciation.5. My brother _6, 000 yuan for the new computer yesterday.spendpaid4. You should _ some3. So together, our actions can make a difference and lead to a better future! make a difference (to) 表示(对)产生影响或作用 e.g. Do you think his words would make any difference to the final decision?

19、你认为他的话会对最后的决定产生影 响吗？ 3. So together, our actions caThe new teacher always encourages little Tom. This has made a big difference to him.新来的老师总是鼓励小汤姆，这对他影响很大。The new teacher always encouraPoints on P97try to do =try ones best to do 努力去做某事be related to 与有关mobile phones 手机rubbish, litter ,waste 垃圾,废物the

20、 bottom of the river 河底be full of 充满fisherman-fishermen 渔民government 政府throw litter into the river 把垃圾扔到河里ask sb. to do 要求某人干某事close down the factories 关闭工厂clean up 打扫used to be过去是play a part in参与，在中扮演角色 Points on P97Memory努力去做某事与有关手机垃圾,废物河底充满渔民政府把垃圾扔到河里要求某人干某事关闭工厂打扫过去是在中起作用，在中扮演角色 MemoryPoints on P

21、98be badly polluted 受到严重污染public places 公共场所turninto 把变成cut down 减少take the bus or subway instead of driving 乘坐公交或地铁代替开车ride a bike 骑自行车advantages of bike riding 骑自行车的好处 Points on P98Points on P58be good for our health 对我们的健康有好处cost，spend，take, pay 花费wood-woodentakeaway food 外卖食物throw rubbish in the

22、 bins 把垃圾扔进垃圾箱keep public places clean and beautiful 保持公共场所干净漂亮make a difference (to) (对)产生影响或作用lead to 导致，通向 Points on P58被污染烧煤太多扔掉把变成附近能够解决问题减少空气污染乘公共汽车或地铁代替、而不是be pollutedburn coaltoo muchthrow awayo.around herebe able tosolve a/the problemcut down air pollutiontake the bus or subwayinstead of被污染

23、be polluted骑自行车骑自行车有别的好处。对有益垃圾污染去购物开始做某事记得要把垃圾扔进垃圾桶保持公共场所的整洁和美丽对有影响、有作用通向美好未来ride the bikeThere are other advantages of bike riding.be good forwaste pollutiongo shoppingstart doingremember to throw rubbish in the binskeep public places clean and beatifulmake a difference to sb.lead to a better futur

24、e骑自行车ride the bike用动词的适当形式填空。1. Were trying _ (save) the earth.2. There used to _ (be) clean and beautiful.3. There are too many _ for _ to catch (fish).4. Its bad for environment to use _ (wood) chopsticks.to savebefishwoodenfishermen用动词的适当形式填空。to savebefishwooden用方框中所给词的适当形式填空。1. Dont throw _(垃圾)

25、everywhere.2. In winter, many people burn _(煤) to keep warm.3. The police found a body at the _(底部) of the lake.4. The _(花费) of living in big cities is very high.5. He keeps a rabbit in a big _(木制的) box.cost wooden, coal , bottom, littercost woodencoalbottomlitter用方框中所给词的适当形式填空。cost wooden, 1.We are

26、 trying to save the earth.我们正在努力拯救地球。 【解析】try doing sth 尝试做某事（不一定付出很大努力） try to do sth 尽力做某事（强调付出一定的努力设 法完成） 想一想? 尽某人最大的努力做某事 try_ 2. But it used to be so clean. 但它过去是如此干净。 【解析】used to 的意思是 _, 其中to是不定式符号，不是 介词，所以其后要接_。 be used to 的意思是_，其中to是介词，其后要接 _ 【合作探究】ones best to do sth.习惯干某事过去常常做某事动词原形doing2.

27、 He _ go out with his parents, but now he _ staying at home alone. A. used to; is used to B. is used to; used to C. use to; is used to D. is used to; is used to 1.We are trying to save the How much is the ticket to Central Park? A one-way ticket _ $40, and you can _ another $20 for a round-trip. A.

28、costs, pay B. cost, spend C. pay, spend D. spends, pay【合作探究】3. Its good for health and it doesnt cost anything! 它对身体有好处并且不会花费任何东西。 cost vt.1. 花费；价格为； 【拓展】take/ spend /cost /pay的用法都可以表示“花费”，但用法却不尽相同。spend的主语必须是_， 常用于 _ cost的主语是物或某种活动， 还可以表示“值”，用于 _ （注意：cost的过去式及过去分词都是cost,并且不能用于被动句。） take后面常跟双宾语， 常见于

29、_ pay的基本用法是：_人Sb. spend time/money on sth.Sb. spend time/money doing sth.cost sb. money. It takes sb. sometime to do sth.pay money for sth. How much is the ticket4.To cut down air pollution, we should take the bus or subway instead of driving. 为了减少空气污染，我们应当乘坐公汽或地铁而不是开车。 本句中To cut down air pollution是

30、动词不定式作目的状语。cut down 意为_减少 We must do something useful to _ pollution. A. cut off B. cut up C . cut down D. cut in 4.To cut down air pollution, wI. 单项选择。1. Eating too much sugar can _ healthy problems. A. get to B. lead to C. point to D. able to2. What are the _ of bike riding? Its good for our healt

31、h. A. advantages B. reasons C. results D. ideasII. 用所给词的适当形式填空。 1. There are many kinds of_（pollute）in our daily life. 2. All of the students should take part in_ (keep) our school clean and tidy. 3. Can you tell us your ideas for _ (improve) your spoken English. 4. We should stop using the_ (wood)

32、chopsticks to protect the forest. 5. Their grandparents were _ (fisherman) near the sea before they moved to the town.当堂检测B.A.pollutionkeepingimprovingwoodenfishermanersI. 单项选择。当堂检测B.A.pollutionkeepiIII. 根据汉语意思完成下列句子。 1. 咱们玩纸牌吧，别看电视了。 Lets play cards _ _ watching TV. 2. 我们的行动会起作用，并且通向更好的未来。 Our acti

33、ons can _ a difference and lead to a _ future. 3. 这个木箱时装满了书。 The _box_ _ _books. is full ofinstead ofmakebetterwoodenIII. 根据汉语意思完成下列句子。is Homework We have only one earth,find out as many ways to solve pollution problems as possible. _.Homework We have only one Bye ByeBye ByeUnit 13Were trying to sav

34、e the earth!Section APeriod ThreeUnit 13Were trying to save thtake part inaffordturn offreusablepay fortake actiontransportation参加v. 买的起；承担的起（后果）关掉adj. 可重复使用的付费；付出代价采取行动n. 运输业；交通运输Words Reviewtake part in参加Words Review用括号内所给动词的适当形式填空。Listen! The phone _(ring). Please go to answer it. Alan, its late.

35、 Why not go to bed? Jenny hasnt come back yet. I _(wait) for her. 3. Whats your father doing now? He _ (write) a letter in the study.is ringingam waitingis writing用括号内所给动词的适当形式填空。is ringingam w 肯定句: 主语 + am/is/are + -ing 否定句: 主语 + am/is/are + not + -ing 疑问句: Am/Is/Are + 主语 + -ing 现在进行时现在进行时表示现在或现阶段正

36、在进行或发生的动作。现在进行时-基本结构 肯定句: 主语 + am/is/are + -ing 现表示说话时正在进行的，目前正在发生的动作。常带有表示目前时刻的时间副词, 如：now, at the (very) moment, for the time being, at present, 及Look! Listen! . Look! The big bird is flying away. 看，那只大鸟正在飞走。 He is watching a movie now. 他现在正在看电影。 现在进行时-用法表示说话时正在进行的，目前正在发生的动作。常带有表示目前时刻2) 表示目前一段时间内正

37、在进行，但 说话时可能没有进行的动作。 Right now I am studying Chinese by distance learning. 我现在正通过远程教育学习汉语。现在进行时-用法2) 表示目前一段时间内正在进行，但Right now I 3) 与always, constantly, forever, all the time等副词连用，表示动作反复或习 惯。此时句子常含有说话者的强烈 情感在内。表达较强的“责备”或“表 扬”之意。 You are always changing your mind. 你总是主意不定。(太烦人了。) He is always helping o

38、thers. 他总是帮助别人。(他真是个好人。) 现在进行时-用法3) 与always, constantly, foreve4) 对于come, go, leave, arrive, start等 表示位置移动的动词常可用进行时 态表将来。 He is leaving on Wednesday. 他将于周三离开。 Mary isnt here at the moment. She is coming later. 玛丽现在不在这儿，她一会儿来。现在进行时-用法4) 对于come, go, leave, arrive, I called you at 4:00 yesterday aftern

39、oon, but no one answered. Sorry, I _ with my friends at that time. (2011河南) A. swim B. swam C. will swim D. was swimming考点例析 I called you at 4:00 yesterd【考点点拨】 过去进行时表示过去某一时刻或某阶 段正在进行的动作，其谓语由“was / were + 现在分词”构成。 常与过去进行时连用的时间状语有： then, at that time, this time yesterday, at ten yesterday等。【考点点拨】用括号内所

40、给动词的适当形式填空。1. Id like to introduce my best friend to you, Peter. Thank you, Lucy. But we _ (meet) already.2. Look at these stamps. I _ (keep) them for five years. Wow, they are wonderful.have methave kept用括号内所给动词的适当形式填空。have methave k肯定句：主语 + have / has + 过去分词 + 其他否定句：主语 + havent / hasnt + 过去分 词 + 其

41、他一般 Have / Has + 主语 + 过去分词 + 疑问句：？肯定答语：Yes, 主格代词 + have / has.否定答语：No, 主格代词 + havent / hasnt.现在完成时-构成肯定句：主语 + have / has + 过去分词 + 现1. 表示动作到现在为止已经完成或刚刚完成。2. 动作发生在过去，强调对现在的结果、 影响等。3. 表示动作发生在过去，并且一直持续到现在，甚至还可能继续下去，句中使用持续性动词，且常有表示一段时间的时间状语。4. 现在完成时可以用在条件或时间状语从句中，表示将来某个时刻之前已经完成的动作。现在完成时-用法1. 表示动作到现在为止已经完

42、成或刚刚完成。现在完成时-用1) 现在完成时 + since + 点时间状语(名词、短语、从句，其中从句用一般过去时)2) 现在完成时 + for + 段时间状语 3) It / This is the first / 其他序数词 / last time + that 从句中，从句使用现在完成时。1) Mary has been ill since three days ago. 2) Mary has been ill for three days. 3) It is the first time that I have visited the city.This is the best f

43、ilm that Ive (ever) seen. 现在完成时-句型1) Mary has been ill since thr六种时态一览表时态一般现在时一般过去时现在进行时过去进行时一般将来时现在完成时用法表示经常性发生的动作、习惯性动作或客观真理、科学事实等。表示过去某个时间发生的动作或存在的状态。表示现在或现阶段正在进行或发生的动作。表示过去某时正在进行的动作或存在的状态。表示将来某个时间要发生的动作或存在的状态。表示过去发生或者未发生的事对现在造成的影响或结果。 构成方式1. 动词be(am/is/are) + 表语2. 动词原形 + (主语是第三人称单数，动词也用第三人称单数)1.

44、 动词was/were + 表语2. 实义动词的过去式 + be(am/is/are) + 动词的现在分词was / were + 动词的现在分词1. will/shall + 动词原形(shall 用于第一人称)2. be going to + 动词原形主语 + have / has + 过去分词 + 句型变化疑问式1. Be + 主语 + ?2. Do/Does + 主语 +动词原形+ ?1. Was/Were + 主语 + ?2. Did + 主语 + 动词原形 + ?Be + 主语 + 动词的现在分词 + ?Was / Were + 主语 + 动词的现在分词 + ？1. Will/Sh

45、all + 主语 + 动词原形+ ?2. Be + 主语+ going to + 动词原形 + ?Have / Has + 主语 + 过去分词 + ？否定式1. 主语 + be + not + 2. 主语+dont/doesnt + 动词原形 + 1. 主语 + was/were + not +2. 主语 + didnt + 动词原形 + 主语 + be + not + 动词的现在分词 + 主语 + wasnt (was not) / werent (were not) + 动词的现在分词 + 1. 主语 + will/shall not + 动词原形 + 2. 主语 + be + not +

46、 going to + 动词原形 + 主语 + havent / hasnt + 过去分词 + 六种时态一览表时态一般现在时一般过去时现在进行时过去进行时一用括号内所给动词的适当形式填空。1. The Secondary School Entrance Exams _ (hold) in June.2. A strange noise _ (hear) by his mother last night.3. A wide road _ (build) between the two villages by those people next year. is heldwas heardwill

47、 be built用括号内所给动词的适当形式填空。1. The Seconda被动语态表示主语是谓语动作的承受者，被动语态由“be + 过去分词”构成。be随着主语人称和数以及时态的不同而变化。含有情态动词的被动语态由“can / must / may / should + be + 过去分词”构成。被动语态被动语态表示主语是谓语动作的承受被动语态The first section of New College English is designed for speaking practiceand is based on pictures and topics.These computers

48、 were made in our own country last year.Shall we be asked to attend the opening ceremony?一般现在时的被动语态：am/is/are + 过去分词 一般过去时的被动语态：was/were+过去分词 一般将来时的被动语态：will/shall+be+过去分词 一般现在时的被动语态：am/is/are + 过去分词 1. 有些动词可以有两个宾语，在用于被动结构时，可以把主动结构中的一个宾语变为主语，另一宾语仍然保留在谓语后面。通常变为主语的是间接宾语(指人的宾语）。一些特殊的被动语态They didnt offe

49、r Ann the job. Ann wasnt offered the job. 1. 有些动词可以有两个宾语，在用于被动结构时，可以把主动结2. 在使役动词have, make, get以及感官动词see, watch, notice, hear, feel, observe等后面不定式作宾语补语时，在主动结构中不定式to要省略，但变为被动结构时，要加 to。They make her clean the floor. She is made to clean the floor by them.2. 在使役动词have, make, get以及感官动词s3. It + be + 过去分词

50、 + that从句 (=主语+ be + 过去分词 + to do sth.)表示：据说/据报道/据悉/据信等据说这个男孩已经通过了这次全国性的测试。It is said that the boy has passed thenational exam. The boy is said to have passed thenational exam.3. It + be + 过去分词 + that从句 (=主1. 某些感官动词加形容词及少数其他的动词本身可以表示被动意义。smell, taste, prove, sell, etc.1) The dish tastes delicious. 2

51、) The theory proved right at last.3) The book is so interesting that it sells well. 不可以变成被动语态的情况1. 某些感官动词加形容词及少数其他的动词本身可以表示被动意need + V- ing 表示“主语承受动词发出的动作”，表示被动意义。我的车需要修理。My car needs repairing. (= to be repaired). 战争爆发了。The war broke out.但不能说：The war was broke out.3. 通常只有及物动词（组）才有被动语态，不及物动词没有。need

52、+ V- ing 表示“主语承受动词发战争爆发 “be + 过去分词”这个结构并不都是被动语态，也可能是系表结构。被动语态与系表结构主要区别是：被动结构表示一个动作，而系表结构表示主语的特点或所处的状态，试比较下面的句子：被动结构与系表结构的区别 “be + 过去分词”这个结构并不都是被动语态，也可能是系The enemy was soon surrounded by us.The house is surrounded by trees.She was bitten by the dog in the darkness. I was excited by the news that my h

53、usbandgot promoted.被动结构系表结构被动结构 系表结构The enemy was soon surrounded 时态主动语态被动语态一般现在时do / doesam / is / are + done一般过去时didwas / were + done一般将来时will / be going to + dowill / be going to + be + done一般现在时、一般过去时和一般将来时的主动结构和被动结构 (以动词do为例)：时态主动语态被动语态一般现在时do / doesam / iWe can do it by ourselves.It must be To

54、ms. Look at his name on the cover. 3.Im sorry. Children mustnt swim here. 4.May see you ID card, sir?5.Will you pass me the book?指出下列划线动词的种类。情态动词 情态动词 情态动词 情态动词 We can do it by ourselves.指出下列情态动词情态动词具有一定的意义，但不能单独作谓语，其后需接动词原形一起构成句子的谓语。情态动词(除have to以外)没有人称和数的变化。另外，情态动词可用来构成否定句、疑问句并进行简略回答。初中常见的情态动词有：ca

55、n, may, must, need, have to, could, should, ought to 等。情态动词情态动词具有一定的意义，但不能单独作谓语，其后需接动考点一：考查表示“能力”的情态动词 1. _ your Australian friend eat with chopsticks? Yes, but she cant use them well. A. Should B. Need C. Can D. Must2. The work is too hard for us. We _ finish it on time. A. cant B. mustnt C. should

56、nt D. neednt 情态动词考点考点一：考查表示“能力”的情态动词 1. _3. Could your father play golf when he was young? No, he _. But he _ play table tennis. A. couldnt; could B. neednt; might C. mustnt; should D. shouldnt; need 【考点点拨】 情态动词can表示“能力”时，与be able to同义，其否定形式为cant。can表示现在的能力，其过去式could表示过去的能力。3. Could your father play

57、 go考点二：考查表示“应该”的情态动词 1. _ weto finish our homework before noon? Yes, you _. A. Need; can B. Have; do C. Ought; ought to D. Should; must2. You _ study hard if you want to be a scientist in the future. A. may B. should C. would D. could 考点二：考查表示“应该”的情态动词 1. _【考点点拨】 情态动词should和ought to都可表示“应该”，但should侧

58、重说话者主观的看法，而ought to更侧重客观情况。 should的否定形式为shouldnt，ought to的否定形式为oughtnt to或ought not to。【考点点拨】考点三：考查表示“请求；许可”的情态动词及其回答 1. _ I borrow your maths book? Sure. Here you are. A. Need B. Will C. May D. Must 考点三：考查表示“请求；许可”的情态动词及其回答2. _ I take some photos in the hall? No, you _. Look at the sign “No photos”

59、! A. Can; neednt B. Must; mustnt C. Should; neednt D. May; mustnt 3. Could I use your dictionary for a while? Yes, of course you _. A. could B. can C. will D. should 2. _ I take some phot【考点点拨】 情态动词may和can都可表示“请求；许可”。may比can正式，could在表示“请求；许可” 时，既可表示过去，也可表示语气的委婉。 当“May / Can / Could I ”表示“请求；许可”时，肯定回

60、答常用“Yes, please.” / “Certainly.”等，否定回答常用“No, you cant / mustnt.”等。【考点点拨】考点四：考查表示“推测”的情态动词1. I saw Lily in the supermarket this morning. Oh, it _ her. She moved to Australia the day before yesterday. A. can be B. must be C. cant be D. mustnt be考点四：考查表示“推测”的情态动词1. I saw Li2. After a long walk, the chi