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Section A (1a-2d) Unit 13  We're trying  to save the earth! 学习目标  Key words & phrases: litter, bottom, fisherman, coal, ugly, advantage, cost, wooden, plastic, make a difference  Key sentences: 1. The river was dirty. Even the bottom of the river was full of rubbish. 2. But it used to be so clean! 3. Yes, but people are throwing litter into the river. Read and learn Words and expressions Lead in The earth is polluted. air pollution The factories that burn  coal pollute the air with  a lot of black smoke.  water pollution Factories put waste  into the river. litter  v. 乱扔   n. 垃圾 rubbish   waste  垃圾    废弃物 mobile phone pollution noise pollution There are  more  cars on  the road. Presentation 1a Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.loud music    cars      rubbish     planes       littering         ships    factories        smoking                  building houses          mobile phones noise pollution  ____________ ____________ ____________ ____________ air pollution  ___________ ___________ ___________ ___________ water pollution  ____________ ____________ ____________ ____________ loud music planes mobile phones factories cars smoking ships factories littering rubbish building houses building houses 1b Listen and complete the sentences. What was the problem? The river was _____________. Even the  bottom (底部) of the river was full of   _________. There were no more ______  for fishermen (渔民) to catch. really dirty rubbish fish 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 factories.  Everyone should help to __________ the  river. litter waste government close down clean up 1c The river was dirty. Even  the bottom of the river  was full of rubbish. But it used to  be so clean! Role-play the conversation. Yes, but people are  throwing litter into  the river. Everyone in this town  should play a part in  cleaning it up! Make conversations using the pollution in 1a. ... ... Language points 1. We’re  trying to save the earth!     我们正在竭尽全力拯救地球!     try to do sth.=try one’s best to do sth.     努力去做某事。     e.g. Every student should try to study             hard in order to study in a good              university.           为了进入一所好大学学习,每个学生           都应该努力学习。 2.  Here are some words related to  different kinds of pollution.     be related to  与……有关     e.g. I am not related to him in any way.            我和他无任何关系。 3. Everyone in this town should play a part in  cleaning it up!     play a part in   在……方面起作用     e.g. A good diet plays a large part in            helping people live longer.          健康的饮食在帮助人们长寿方面起着          非常大的作用。     play a part 在……中扮演角色 e.g. He was invited to play a part in this TV play. 他被邀请参加这个电视剧的演出。 4. Even the bottom of the river was full of  rubbish.     Yes, but people are throwing litter into the  river. litter和rubbish都可指“垃圾”,用作不可 数名词。 rubbish指“没用的东西(被扔或将要丢弃的 无用的东西)”不可回收。 litter指“(室内或公共场所)乱扔的废物(纸屑、 不要的包装纸、废瓶等)”还可回收。 e.g.  Throw the rubbish out.          把垃圾扔出去。   The room is full of rubbish.          房间里堆满了垃圾。   Pick up your litter after a picnic.                  野餐后将废弃物收拾好。 2a Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about. A. land pollution            B. air pollution C. noise pollution           D. water pollution 2b Listen again and complete the sentences. 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. more cars pollute 3. There is also too much rubbish and  waste. People _________________  things every day. 4. People are also littering in  ______________ like parks. This is  turning beautiful places into     ugly (丑陋的) ones.  are throwing away public places Use the information in 2a and 2b to role-play conversations between Jason and Susan. 2c The air has become  really polluted  around here. I’m  getting very worried. Yes, I used to be  able to see stars  in the sky. The problem  is that… What should we do to save the earth?1. Turn off the lights when you leave a room. 关掉 2. stop riding in cars 3. stop using paper towels or napkins(餐巾, 餐巾纸) 4. recycle books and paper 回收利用 5. ... 2d Read 2d and complete the chart. Problems Solving problems air pollution waste pollution rubbish take the bus, subway or ride a  bike instead of driving bring a bag to go shopping, never  take wooden chopsticks or plastic  forks but use the ones at home  while buying takeway food throw rubbish in the bins Jason and Susan, what are your ideas for solving these problems? Language points 1. This is turning beautiful places into ugly ones.     turn… into…  把……变成…… e.g. The icy rain seemed like to turn into snow.        冻雨似乎又变成雪花的模样。 2. It’s good for health and it doesn’t cost  anything!     cost  v. 花费;使付出     指花费金钱,主语通常是物。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? take, spend, pay & cost take,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 usually takes me 40 minutes to            cook the dinner. 2) 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. 3) 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. 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. cost   spent  takes 4. You should __________  some time  practicing your pronunciation. 5. My brother _______ 6, 000 yuan for the  new computer yesterday. spend paid 3. So together, our actions can make a difference and  lead to a better future!     make a difference (to…)     (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?          The 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。 用动词的适当形式填空。 1. We’re trying _______ (save) the earth. 2. There are too many ____ for __________     to catch (fish). 3. It’s bad for the environment to use      _________ (wood) chopsticks. to save fish wooden fishermen 口头作业 (Oral work) 熟读课文Unit 13 Section A (2d) 书面作业 (Writing work) 学练优 Unit 13 Section A 第一课时 查看更多

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