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第17讲 Unit 12 The Earth.pdf
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第17讲 Unit 12 The Earth 17
101一、掌握关于地球环境的词汇二、掌握情态动词 can,should,must的用法三、复习发音选择正确的答案()1.We can use stones(石头)bridges(桥).A.make B.making C.to make()2.We can get wood trees.A.from B.on C.of()3.Lets the work.A.finishing B.finish C.to finish()4.Trees can keep the air .A.clean B.cleans C.cleanly()5.Did you your book yesterday?A.find B.look for C.look比Pretest第 17 讲 Unit 12 The EarthWarm up学ReadingPart OnePart Two We live on the Earth.The Earth is a beautiful place.There are rivers,oceans,land and forests.There are many different plants and animals too.People,plants and animals need clean water and air.Sometimes people throw rubbish into rivers and oceans.Sometimes people cut down too many trees.Smoke from cars and factories make the air dirty.The Earth gets sick.生活中常见的环保标志Ms Guo:Look at this picture.What is it?Kitty:Its the Earth.Ms Guo:The green and brown parts are forests and land.What are the blue parts?Joe:I think theyre oceans.Ms Guo:Yes,they are.The Earthwas very clean andbeautiful in the past,but now some parts aredirty.Can we do anything to help the Earth?Alice:Yes.We should stop throwing rubbish into rivers.Peter:We should stop cutting down so many trees.Kitty:We should stop using plastic bags.102 Now people work together to keep the Earth clean and healthy.They pick up rubbish.They plant trees every year.They recycle glass and paper.They bring their own shopping bags and stop using plastic bags.Vocabulary词汇词性音标词义常见搭配Earth 名词 n.地球part名词 n.pt地区;区域复数:partsforest名词 n.frst森林in the forestland名词 n.lnd陆地ocean名词 n.()n海洋Pacific Oceanrubbish名词 n.rb垃圾throw rubbishsick形容词 adj.sk生病的get sickrecycle动词 v.risak()l回收利用;再利用glass名词 n.gls玻璃;玻璃杯a glass of waterown形容词 adj.n自己的my own roomso many这么多区别:too muchpick up捡起;拾起shopping bag购物袋复数:shopping bagsplastic bag塑料袋复数:plastic bagsKey words and phrases1.There are kinds of fish in the o .2.Mingming gets s .1033.We may get lost in the .6.Elephants live on the ,not in the sea.5.People make lots of every day.4.We should do our best to protest the .7.We should r the waste paper.Grammar 知识点:情态动词3.常见的情态动词的用法1.定义:情态动词是一类用于表示说话人的情绪、态度或语气的动词,常表示命令、请求、拒绝等。情态动词不能单独作谓语,只能和其他动词原形构成谓语。(1)情态动词无人称和数的变化;(2)情态动词后面接动词原形。如:I can swim.He can swim.。should(否定式:shouldnt)should表示建议、要求,意为“应该,应当”。如:He should work hard.must(否定式:mustnt)must 表示命令,意为“必须”,如:You must go tobed before 11:00.mustnt 表示强烈禁止做某事,意为“一定不能”,如:You mustnt play with fire.在回答疑问句中,肯定回答:Yes,sb.+must.否定回答:No,sb.+neednt.(不必)can(否定式:cant)表示能力,如:Can you skate?表示请求和允许,如:Can I go now?Yes,you can./No,you cant.could(否定式:couldnt):can 的过去式,有两种用法表示过去,如:I couldnt find her last week.用来表达更加客气、委婉的语气,如:Could I come in?Yes,you can.1.定义2.特点shouldmustcanExercise赶题型 1:选出不同类的单词()1.A.mountains B.oceans C.animals()2.A.alive B.sick C.picture()3.A.glass B.wood C.money()4.A.must B.earth C.moon()5.A.plant trees B.throw rubbish C.save water题型 2:选择填空()1.We live the Earth with animals and plants.A.in B.on C.at()2.Tom,it is too noisy.Stop in your bedroom.A.dance B.dancing C.to dance104()3.We must down too many trees.A.stop cutting B.stop to cut C.to stop cutting()4.We should glass and paper to help savethe Earth.A.use B.recycle C.stop()5.My uncle went to the airport to .A.pick me B.pick up me C.pick me up题型 3:连词成句1.gets the Earth sick (.)2.into people rivers throw some rubbish (.)3.can recycle paper we and glass (.)4.clean the Earth was beautiful and (.)5.do what we to should the Earth save (?)Mind Map1.生病的:2.垃圾:3.地球:4.陆地:5.剥离:6.再利用:7.海洋:8.森林:9.地区:10.自己的:一般过去时:1.should 表示 、,意为“应该,应当”。2.can 表示 、3.must 表示 语法词汇1.捡起:2.塑料袋:3.这么多:4.购物袋:短语题型 1:听录音,选出听到的句子()1.A.There were forests,land and oceans on the Earth.B.There are forests,land and oceans on the Earth.C.There are a few forests,land and oceans on the Earth.()2.A.We should stop throwing rubbish on the groundB.We should stop throwing rubbish into rivers.C.We must stop throwing rubbish on the groundor into rivers.()3.A.Can we do anything to protect forests?B.Shall we do something to help forests?C.Can we do anything to protect animals?()4.A.We have to work together to help make our Earth clean.B.Wed better work together to help make our Earthclean.C.Wed better work together to help keep our Earth clean.()5.A.We should recycle glass and paper.B.We should recycle all kinds of glassC.We must recycle paper.题型 2:听录音,给下列应答编号()Of course.()I will clean it every day.()It comes from the cars and factories.()They are blue.()He ran in the rain and had a cold.()Its air.题型 3:听录音,选出正确的答案()1.A.At half past eight.B.On the last Saturday in March.C.For one hour()2.A.They will tell people not to throw rubbish into theriver.B.They will pick up the rubbish in the river.C.They will make a poster.听力训练超Listening105()3.A.West city zoo.B.Wild Animal Zoo.C.Wild Animal Museum.()4.A.Yes,he will.B.No,he wont.C.Yes,he did.()5.A.No.He bought a plastic bag before.B.Yes,he bought a plastic bag.C.No.He brought her own shopping bag.题型 4:听录音,填空完成句子1.In the past,our was very clean and beautiful.2.Jill was .Her mum took her to the hospital.3.The green and brown parts on Earth are and land.4.What can

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