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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,Unit 3 The earth,new words,1,）,need,做情态动词，跟,can,用法一致。,need,表示“需要”或,“必须”。,E.g.:a),He,_worry,about it,这件事他无需担心。,b)._,he do this homework first,？,Yes,he _.,No,he _.,其一般疑问句的答语，肯定用,must,，,否定用,neednt,n,eednt,Need,must,n,eednt,need,2)need,做实义动词用。,主,+need+to,do,（主语是人等有生命体的东西。）,主,+need+doing,(,主语是物体，往往表被动。）,他需要打扫房间。,He need _ the room.,房间需要打扫了。,The room _.,to clean,n,eeds cleaning.,The room needs to be cleaned.,pollute,v.,污染,p,ollution,n.,污染,There is a lot of _.,Cars _ the air in the city.,Air _ is becoming more and more serious.,pollution,pollute,p,ollution,p,rovide,v.,提供，后面直接加名词或代词。,provide sb.with sth.,provide sth,.,for sb.,向某人提供某物,My school _ the school bus.,We _ the market _ fresh food.,We _ the fresh food _ the market.,p,rovides,provide,with,p,rovide,for,few adj.,几乎没有（具有否定意思,.),a few adj.,一些,l,ittle adj.,几乎没有（具有否定意思,.),a little adj.,一些,There is _ meat.Lets go and buy it.,There is still _ meat.You can eat it.,That is not an easy work.It takes them _ days to finish it.,When the winter comes,there is _ fish in the river.,冬天到了，河里几乎没有鱼。,a few,a little,l,ittle,few,这两,个形容词后面接可数名词。,这两个形容词后面接不可数名词,。,problem,客观上存在的问题或难题,(,也可以指习题）,一般与,solve,do,work out,连用。,question,（人们主观上产生的需要解答的问题,或 疑问）一般与,ask,answer,连用。,Heavy traffic is a _ in many old towns.,Who can answer this _.,Mandy is working out a Math _.,problem,question,problem,must,情态动词,+V,原型,必须（做某事）,否定形式：,must not,或者,mustnt.,我们必须保护环境。,We _ _ the environment.,这里不允许拍照。,You _ _ _ here.,must protect,mustnt take photos,s,top doing sth.,停止做,（现在正在做的事情）,stop to do,停止手头上的事情，去做另外一件事。,Stop _(talk)and,b,e quiet.,Stop _ (open)the door.The door bell is ringing.,talking,to open,stop,Some place are very hot,and some are very cold.,somesome,，表示,“,有些,/,有的,其中,some,可以单独使用，也可以在后面跟名词。如：,Some,films,are interesting.Some are boring.,b,)some,后面的谓语动词形式取决于前面的名词是否可数或者单复数。,Some money _(be)stolen.,Some teachers _(be)coming.,There are different animals on Earth too.Some _(live)on the land.Some _(fly)in the sky.,此处有名词。,此处没有,It is easy for sb to do sth.,对某人来说做某事很容易,Is is necessary for sb to do sth.,对某人,来说做某事有必要。,It is not easy to learn,E,nglish well.(,英译汉）,学好英语不容易。,记住，真正的主语是不定式（,to),，翻译时记得把他们放在前面。,It is for sb.to do sth.,word competition,Earth,quiz,pattern,protect,report,part,land,field,large,provide,pollution,burn,energy,pollute,地球,知识竞赛,模式,保护,报告,部分,陆地,田野,大的,提供,污染,燃烧,能量,污染,into,ground,kill,must,important,fact,kilometer,own,catch,few,away,problem,进入,地面,杀死,必须,重要的,事实,公里,自己的,捕捉,很少,离开,问题,
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