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原因、结果、目的和让步原因、结果、目的和让步状语从句状语从句原因状语从句原因状语从句由由because因为因为引导，表示原因，可放于主句前，引导，表示原因，可放于主句前，也可放于主句后。也可放于主句后。不能与不能与so连用连用。He didnt go to school _.because he was ill结果状语从句结果状语从句由由so所以所以引导，表示结果，放于主句后。引导，表示结果，放于主句后。She worked hard _.so she got good marks结果状语从句结果状语从句由由so.that.如此如此.以至于以至于.引导，引导，so后接形容词后接形容词或副词或副词，that后句子表示结果。后句子表示结果。He got up _ so late that he was late for school.结果状语从句结果状语从句由由such.that.如此如此.以至于以至于.引导，引导，that后句子表示结果后句子表示结果,such后接后接形容词形容词+名词名词。He is _ such a good boy that we all like him.目的状语从句目的状语从句由由so that以便以便引导，表示目的，放于主句后。引导，表示目的，放于主句后。that后常常有后常常有can，could，may,might。He works hard_ _.so that he can go to Beijing University让步状语从句让步状语从句由由though、although虽然，尽管虽然，尽管引导，可放于引导，可放于主句前或后。主句前或后。不能与不能与but连用。连用。He is unhappy _.though he is rich1.“so that以便以便”的句子可以改为的句子可以改为 to do sth.或者或者in order to do sth.He works hard He works hard so thatso that he can go to Beijing University.he can go to Beijing University.=He works hard=He works hard to go to go to Beijing University.to Beijing University.=He works hard=He works hard in order to go in order to go to Beijing University.to Beijing University.特别注意特别注意 2.“so/suchthat”的的否定句否定句可以改为可以改为“too.to do sth”(太太而不能做而不能做)ShShe ise is so so old old that that s she cant look after hhe cant look after hererself.self.=She is=She is such such an old woman an old woman thatthat she cant look after she cant look after herself.herself.=ShShe is e is tootoo old old toto look after h look after hererself.self.特别注意特别注意一、单项选择题一、单项选择题1.The lazy boy didnt go to school yesterday_he could play computer games at home.A.to B.so that C.such that D.in order to2.We will go to the supermarket _some food.A.so that to buy B.so C.in order to buy D.in buying3.Could you keep silent_we can do some reading quietly?A.so that B.that C.to D.so4.He is _ strong _ he can carry the big stone.A.such;that B.so;that C.such a;that D.such an;that5._he fell off his bike,_he hurt his leg.A.Because;so B./;because C.Because;/D./;6.He is_a weak old man that he cant get up by himself.A.such B.so C.too D.very7._she is ill all the time，_she never gives up her study.A.Although;but B.But;/C.Although;/D./;/8.She was_tired that she couldnt go to work.A.so B.such C.too D.very9.He plays basketball so _ that we are all proud of him.A.good B.well C.better D.best二、词型练习二、词型练习1.He ran so_(quick/quickly)that we couldnt caught him up.2.He is too young _(look/to look)after himself.3.It is such a_(fun/funny)story that everyone all laugh.4.The flowers are so_(beautiful/beautifully)that we all like them.5.Though it is_(rain/raining),the farmers still work in the fields.三、句型转换，根据上句，把下句改为同义句。三、句型转换，根据上句，把下句改为同义句。三、句型转换，根据上句，把下句改为同义句。三、句型转换，根据上句，把下句改为同义句。1.He is so fat that he cant walk.1.He is so fat that he cant walk.He is _ fat _ _.He is _ fat _ _.2.My mother gets up early so that she can make 2.My mother gets up early so that she can make breakfast for us.breakfast for us.My mother gets up early _ _ breakfast for us.My mother gets up early _ _ breakfast for us.3.He is so slow that I have to stop to wait for him.3.He is so slow that I have to stop to wait for him.He walks so _ that I have to stop to wait for him.He walks so _ that I have to stop to wait for him.4.The book is so interesting that I have read it four 4.The book is so interesting that I have read it four times.times.It is _ _ _book that I have read it four It is _ _ _book that I have read it four times.times.too to walktoo to walk to make to makeslowlyslowlysuch an interestingsuch an interesting结束结束
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