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Unit 2 Saving the EarthTopic 3 What can we do at home to protect the environment?Section B Lets play a game. Say a sentence with and, or, but & while like this one by one.A : I like English and Im good at it.B: I am good at English while my good friend is good at history.C: My good friend is good at history but reusereducerecycleothers How do you sort the garbage youve collected on your own Clean-up Day.plastic bottles. paper bags and cups. lunch boxessoft drink cans, plastic bottles, waste paper, glass, paper bags and cups . batteries .What should you do if you would like to be a greener person?You should sort the garbage. =You ought to sort the garbage.=You are supposed to sort the garbage. ought to 应该应该 情态动词情态动词 ought to +动词原形动词原形ought not to + 动词原形动词原形=oughtnt to +V.You should /ought to shut off the electricityn.电，电能电，电能关闭关闭e.g. You should / ought to shut off the electricity when you leave a room. You should/ought to ride a bike to your school. You should/ought to take a bus to school instead of taking a taxi.You should/ought to take a cloth bag when you go shopping. 一一.读读1a,划出下列短语并朗读。划出下列短语并朗读。1.环保使者环保使者_ 2.应该应该_3.关掉电关掉电_ 4.最好骑车最好骑车_5.代替代替_ 6.短程旅游短程旅游_7.塑料袋塑料袋_ 8.行动胜于言辞行动胜于言辞_9.节省能源和减少空气污染节省能源和减少空气污染_10.说起来容易做起最难说起来容易做起最难_11.毕竟，归根结底毕竟，归根结底_ 12.带个布袋带个布袋_预习导纲预习导纲二二.读下列句子，翻译并探究。读下列句子，翻译并探究。1.You ought to shut off the electricity when you leave a room. 译：译：_探究：探究：ought to 是是_，_人称和时态、数的变化，人称和时态、数的变化，后接动词后接动词_；ought to 的否定式的否定式_=_；表示表示“不应该做某事不应该做某事”的结构是：的结构是：_； ought to 的疑问句形式是将的疑问句形式是将_提前即可。提前即可。练一练：练一练：1）You _(该帮父母该帮父母)do some homework.2)You ought to tell her the bad news.（否定句）（否定句）2.Youd better walk or ride a bike instead of taking a bus or a taxi.译：译：_探究：探究：instead of 是是_短语，意为短语，意为_, 其后接其后接_ 、 _、_。而。而instead 是是_词，意为词，意为_.常放在句末常放在句末或句首，后不接其他词。另外，或句首，后不接其他词。另外，take the place of意为意为_,_词，可作谓语。词，可作谓语。做一做做一做1）Mr. Li was ill,so Mr Zhang took his lesson _ him. A.instead B.instead of C.but D.either 2)Weve got no coffee.Lets have tea_. A.either B.however C.yet D.instead1. Everyone ought _ a greener person.A. is B. be C. to be D. become 2. He stayed home instead of _ because of the heavy rain.A. go out B. went out C. going out D. goes out 3. Youd better _ on your coat. It is cold outside.A. put B. putting C. to put D. puts 4.The cleaners often collect all kinds of garbage in the park, then _ them, so that they can be recycled.A. sort B. sorts C. recycle D. kind5. Please remember to _ the tap after you using the waterA. turn off B. turn on C. close D. shut off单项选择单项选择1b Listen to 1a and choose the correct answers. 1.Jane and Michael are mainly talking about _. why we should shut off the electricity when we leavewhat we should use when we go shoppinghow to be a greener person2. Actions speak louder than words means _. words are not as loud as actions to do well is better than to say well A. actions can speak, but words cant do it Actions speak louder than words.Remember some English idioms and try to use them often. Easier said than done. 说起来容易做起来难。说起来容易做起来难。行动胜于言辞。行动胜于言辞。1a Look, listen and say. 1c Read 1a and complete the table.To be a greener person 1._when you leave the room. 2. If you travel a short _, you shouldnt _ , but _. So this helps to _ and _. 3. When you go shopping, youd better _ instead of using _. You ought to shut off the electricitydistancetake a bus or a taxiwalk or ride a bikesave energyreduce air pollutiontake a cloth bagplastic bagsRetell it Retell 1a like this: I would like to be a greener person. First I ought to shut off the electricity when I leave a room. Second, Id better walk or ride a bike instead of taking a bus or a taxi if I travel a short distance. I will save energy and reduce air pollution. Third, I will take a cloth bag when I go shopping. I wont use plastic bags. Its easy to be a greener person. How can we become a greener person?2 Choose the correct verbs or phrases to complete the statements. Then match them with the right pictures. shut off reduce grow recycle ride cover use _ waste. Dont buy cups or boxes which can be used only once. Save electricity. _ the electricity when you are not using it. _ boxes and plastic bottles. _ fruit and vegetables yourself. Try to _ a bike when you travel. _ both sides of the paper. _ pans when you are cooking. ReduceShut off RecycleGrowrideUseCover2 Match them with the right pictures. Reduce waste. Dont buy cups or boxes which can be used only once.Save electricity. Shut off the lights when you are not using them.Recycle boxes and plastic bottles.Grow fruit and vegetables yourself.Try to ride a bike when you travel. Use both sides of the paper.Cover pans when you are cooking.3 Read the passage and fill in the blanks with the correct words. Then listen and check. The first letter of each word is given. The earth is our home. Some things we have done are good for the earth w_ some are bad. We have polluted the earth, a_ it is sick now. We c_ down too many trees, so lots of rich land has c_ into desert. Factories p_ waste water into rivers. Pollution has caused many s_ problems. The earth is crying for help. What shall we do to save it? We should plant more trees, r_ the waste we produce, r_ the waste paper and soft drink cans, and ride bikes to reduce air pollution. I think we should try to be g_ people to protect our earth. After all, we have only one earth. We should do e_ to protect it, or well be punished and lose our home. hilenduthangedoureriouseduceecyclereenerverything毕竟，归根结底毕竟，归根结底4 Work in groups and survey your group members about what they do to be greener people. Then report it to your class. Pay attention to the stress, liaison, incomplete plosion and intonation. Example:A: Wha(t) do you often do to be a greener person ? B: Well. I always shut off the electricity when I am not using it . A: Good. What about you , John?C:You _ _(应该) throw the rubbish into the garbage. You should _ _(关闭)the electricity when you leave a room. Youd better walk or ride a bike _ _ (代替) taking a bus or a taxi if you travel a short distance. Its so _(容易) to be a greener person. _ _ _ _ _. (行动胜于言辞) ought to shut off instead of easyActions speak louder than words 1. You ought to get up early in the morning. You _ _ get up early in the morning. （改为否定句）（改为否定句）2. We should reuse clothes. (同义句转换同义句转换)We shouldnt use clothes _ _.3. I want to stay at home. I dont want to go shopping. （合为一个简单句）（合为一个简单句）I want to stay at home _ _ going shopping.7. Being a greener person is very easy. (改为同义句改为同义句) _ is very easy _ _ a greener person.8. Youd better play the computer games. (改为否定句改为否定句) Youd better _ _ the computer games.句型转换句型转换We learn: 1. Some words: action, distance, electricity 2. Some phrases: ought to, shut off, after all 3. Some useful sentences:(1)Would you like to be a greener person?(2)First, you ought to turn off the lights when you leave a room.(3)Easier said than done.(4)Well, actions speak louder than words.We Can: 1. Use the proper ways to protect the environment in our life. 2. Talk about the greener life style. Read 1a.Memorize the useful expressions and key sentences that we learn today.Finish Section B in your workbook.Preview Section C.
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