人教版九年级英语Unit13-sectionAWe're rying to save the earth

1、Unit 13Were trying to save the earth.Section A学习目标 Key words & phrases: litter, bottom, fisherman, coal, ugly,costadvantage, 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 a

2、re throwing litter into the river. litterbottomfishermancoaluglyadvantagecostwoodenplastictakeawaybinlt(r)n.废弃物，垃圾btmn.底部; 臀部frmn n.渔夫kln.煤; 煤块liadj.丑陋的; 难看的;dvntd n.有利条件,优点kstv.花费 n.花费，价钱wdnadj.木制的; 木头的;plstkadj.塑料的 n.塑料外卖食物bnn.垃圾箱Words and ExpressionsBeautiful earth many years ago.The earth is pol

3、luted.air pollutionThe factories that burn coal pollute the air with a lot of black smoke. Vehicle emissionsfireworkswater pollutionFactories put waste into the river.mobile phone pollution（unusful litter）e-waste（electronic）noise pollutionpress the horn white pollutionWhat should we do?Protect our e

4、arth.1aHere 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 phonesnoise pollution _air pollution _water pollution _loud musicplanesmobile phonesfactoriescars

5、smokingshipsfactorieslitteringrubbishbuilding housesbuilding houses1bListen 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 dirtyrubbishfishWhat caused the problem?People are throw

6、ing _ into the river.Factories are putting _ （废弃物）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.litterwastegovernmentclose downclean up1cThe river was dirty.Even the bottom of the river was full of rubbish

7、(没用的东西(被扔或将要丢弃的无用的东西)”不可回收).But it used to be（过去是） so clean!Role-play the conversation. Yes, but people are throwing litter(乱扔的废物(纸屑、不要的包装纸、废瓶等)”还可回收) into（把.丢进） the river.Everyone in this town should play a part in cleaning（参与)it up!2aListen to the interview. Circle the kinds of pollution that Jaso

8、n and Susan talk about. land pollution B. air pollutionC. noise pollution D. water pollution2bListen again and complete the sentences.1. The air is badly polluted because there are _ on the road these days.2. Factories that burn coal(烧煤） also _ the air with a lot of black smoke.3. There is also too

9、much rubbish and waste. People _ things every day.4. People are also littering（乱丢杂物） in_like parks.This is turning beautiful places into ugly (丑陋的) ones. more carspolluteare throwing awaypublic placesUse the information in 2a and 2b to role-play conversations between Jason and Susan.2cThe air has be

10、come really polluted around here. Im getting very worried.Yes, I used to be able to(be able to能做.) see stars in the sky.The problem is that Help save the earth We must think of better ways to treat our planet in future.If you drink a can of cola. What do you do?I throw away cans.I recycle cans.You t

11、hrow away the cans. Thats bad for the Earth.You recycle the cans.Thats good for the Earth.There are a lot of old newspapers at your home. What do you do?I throw the old newspapers away.I recycle the old newspapers.You waste paper.Thats bad for the Earth.You save paper. Thats good for the Earth.You g

12、o shopping. What do you do?I use a lot of new plastic bags.I use my own bag.You use a lot of new plastic bags. Thats bad for the earth.You use your own bag. Thats good for the Earth.When you write on a piece of paper,what do you do?I write on one side only.I write on both sides.You use paper on both

13、 sides. Thats good for the Earth.You use paper on one side only. Thats bad for the Earth.Discussion1. _ the lights when you leave a room.2.Take public transportation,such as _ _,_.3.Stop using _ _or_ _4._books and paper.5._.6._.Turn offby busshared-bikeplastic bagsdisposable dishwareRecyclePlant mor

14、e trees.Save the water,dont waste any water.What should we do to save the earth?2dRead 2d and complete the chart.ProblemsSolving problemsair pollutionwaste pollutionrubbishtake the bus, subway or ride a bike instead of driving1.bring a bag to go shopping, 2.never take wooden chopsticks or plastic fo

15、rks throw rubbish in the bins1.解决2.减少3.代替+ing4.好处5.cost花费,主语是物6.垃圾污染7.开始做某事，事情已经开始做了.8.外卖9.记得做某事，动作未发生10.产生影响或作用11.引领sharkfincruelharmfulbe harmful toat the top ofchainthe food chainecosystemindustrylawscientific:rk n.鲨鱼; 坑蒙拐骗的人fn n.鱼鳍krul adj.残酷的，残忍的 h:rmfl adj.有害的; 对.有害的在.顶部ten n.链子，链条 食物链i:ksstmn

16、.生态系统ndstri n.工业; 行业l: n.法律法规santfkadj.科学的; 科学上的Words and Expressions2. What do you know about sharks?Discuss with your partner:鲨鱼需要保护，我们餐桌上香喷喷的鱼翅汤就是鲨鱼的鳍做的，一旦被割去了背鳍，鲨鱼就会因为失去平衡能力沉到海底饿死。（鱼翅的营养价值和一碗粉丝差不多，吃鱼翅毫无意义）Shark fin soupWhere shark fin soup is popularNumber of sharks caughtand traded every yearHo

17、w government can helpTwo environmental groups against “finning”Southern China70 milliondevelop laws to stop the sale of shark finsWildAid and the WWF3aRead the passage about sharks and complete the fact sheet below.Save the sharks!Many have heard of(听说） shark fin soup.This famous and expensive dish

18、is especially popular in southern China.But do you realize that youre killing a whole shark each time（每次） you enjoy a bowl of shark fin soup?When people catch sharks,they cut off(割掉） their fins and throw the sharks back into（丢回） the ocean.This is not only cruel,but also harmful to the environment.Wi

19、thout a fin,a shark can no longer（不再） swim and slowly dies.Sharks are at the top of the food chain in the oceans ecosystem.If their numbers drop too low,it will bring danger to（给.带来危险） all ocean life.Many believe that sharks can never be endangered（濒临灭绝）because they are the strongest in their food c

20、hain.But in fact,（事实上）around 70 million sharks are caught and traded in this industry every year.The numbersof（.的数量）some kinds of（种类） sharks have fallen by（减少） over 90 percent in the last 20 to 30 years.Environmental protection groups around the world,such as WildAid and the WWF,are teaching the pub

21、lic about“finning（猎翅）”.They have even asked governments to develop laws to stop the sale of shark fins.So far（目前为止）,no scientific studies have showen that shark fins are good for（对.有益的health,so why eat them?Help save the sharks!3bRead the passage again and fill in the blanks with the words in the bo

22、x.so although if but whenMany people do not realize they are killing a whole shark _ they enjoy a bowl of shark fin soup.2.Sharks are at the top of the food chain, _ if their numbers drop, the oceans ecosystem will be in danger.3. Many think that sharks are too strong to be endangered, _ they are wr

23、ong.4. _ there are no scientific studies to support this, a lot of people believe that shark fins are good for health.5.Sharks may disappear one day _ we do not do something to stop the sale of shark fins.whensobutAlthoughiftake part inaffordturn offreusablepay fortake actiontransportationrecyclenap

24、kin=join=join in 参加f:rdv.买得起; 承担得起;关掉ri:ju:zbladj.可再用的，可重复使用的付费，付出代价采取行动trnsp:rtenn.交通运输，运输业ri:saklv.回收利用; 使再循环;npknn.尿布; 餐巾，餐巾纸Words and ExpressionspaidGrammar Focus1.我们正在尝试拯救地球。We _ _ _save the world.2.这条河过去很干净The river _ _ _ so clean.3.空气被严重污染了。The air _ badly _.4.没有科学研究表明显示鱼鳍对健康有益No scientific s

25、tudies _ _thatshark fins_ _ _ health.Present perfect5.我们应该帮助拯救鲨鱼。We _ help _ the sharks.are trying toPresentprogressiveused to beused to is pollutedPassive voicehave shownare good forshouldsaveModal verbs现在进行时: Present Progressive结构: be (am/is/are) + v.-ing标志词：look, listen, now, right nowe.g. Look!

26、The boy _ _.定义：表示说话时(瞬间)正在进行的动作,也表示目前 现阶段正在进行的动作。 is crying1.used to do sth. 表示过去常常做某事,而现在不做了， 后接动词原形。2.be used to doing sth. 表示习惯于做某事e.g.1.我过去常常六点起床。 I _ _ _ _ at six oclock. 2.Joe 习惯于每天早上喝杯咖啡。 Joe _ _ _ _a cup of coffee every morning.used to do与be used to doingused to get upis used to drinking被动语态

27、：Passive voice定义:表示主语是动作的承受者,即行为动作的对象的一种语态。结构：be + 过去分词e.g.1. A new school _(build)last year. Our classroom _ _(clean) every day.was builtis cleaned结构: has/have + 过去分词标志词：already, yet, ever, never, since, fore.g. 1.我还没完成作业。 I _ _ my homework yet. 2. I _ (be) in Beijing for two years. 3. I _ never _

28、(hear) of that man before. 4. Tom _ (work) there since two years ago.定义：表示动作已经完成, 但对现在造成影响; 或者表示从过去某一时间开始一直延续到现在并还可能持续下去的动作。 现在完成时: Present Perfecthavent finishedhave been have heard has worked 1.情态动词本身有一定的词义, 表示说话人的情绪、态度或语气.常见的有: can (could), may (might), must, need, shall (should), will (would)等2.

29、 情态动词无人称和数的变化, 后接动词原形。否定式是在情态动词后面加not。个别情态动词有过去式形式, 可用来表达更加客气、委婉的语气。如：might/could/would.1. 我们不能在教室里吃东西。2. 他现在不可能在家。情态动词ExerciseWe cant eat in the classroom. He cant be at home now. 4aFill in the blanks with the correct forms of the verbs in brackets.Joe: _you ever_ (take) part in an environmental pr

30、oject ?Eric: Yes, I have. I _ (help) with a Clean-Up Day last year. It was _ (consider) the biggest clean-up project this city _ ever _ (have).Joe: How many people _ (take) part?Eric: I _ (think) more than 1,000 people _ (come) to help out.Joe: Thats fantastic! I guess everyone in this city is _ (tr

31、y) to improve the environment.Eric: Yes, we cant afford to _ (wait) any longer to take action!Have takenhelpedconsideredhadhad参加tookthinkcametryingwaitv. 承担得起(后果); 买得起4bFill in the blanks with the appropriate modal verbs from the box.People _ think that big things_ be done to save the earth. Many fo

32、rget 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(可重复使用的） bags instead of plastic bags. I think its a great idea that you now _ pay for plastic bags in some stores. And instead of driving

33、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 big things that _ improve the environment. Lets take action now!may/mightmustcancan would could have to should must may/ mightcouldhave to can/shouldcan/couldcouldwould/can4cMake a list of things that people can do to help the environment and discuss your list with your partner.use public transp