Lesson 20 No Stoppingbecause引导的原因状语从句.ppt
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1、BecauseBecause引导的原因状语从句引导的原因状语从句引导原因状语从句的从属连词主要的有引导原因状语从句的从属连词主要的有because,as,because,as,since,for,seeing(that),now(that),considering(that)since,for,seeing(that),now(that),considering(that),in thatin that等:等:The woolly shrank because it was washed badly.The woolly shrank because it was washed badly.毛
2、衣因洗得不得法而缩水。毛衣因洗得不得法而缩水。I cant get to sleep because of the noise outside.I cant get to sleep because of the noise outside.由于外面声音嘈杂我睡不着。由于外面声音嘈杂我睡不着。Since As weve no money,we cant buy it.Since As weve no money,we cant buy it.由于我们没钱,我们无法购买它。由于我们没钱,我们无法购买它。Seeing that its raining,wed better stay indoors
3、.Seeing that its raining,wed better stay indoors.既然外边在下雨,我们最好待在室内。既然外边在下雨,我们最好待在室内。Now that you are here,youd better stay.Now that you are here,youd better stay.你既然来了,最好还是留下吧你既然来了,最好还是留下吧(既来之,则安之既来之,则安之)。(1)(1)because because 语势最强,表示不知道的原因用语势最强,表示不知道的原因用becausebecause,即说话人认为听话人不知道。因此,即说话人认为听话人不知道。因此
4、becausebecause从从句是全句最重要的部分,通常被放置于主语之后;句是全句最重要的部分,通常被放置于主语之后;有时也放在主句之前。有时也放在主句之前。You want to know why I am leaving?You want to know why I am leaving?I am leaving because I am fed up.I am leaving because I am fed up.(2)(2)回答回答whywhy提出的问题,只能用提出的问题,只能用becausebecause。(1)(1)A A:Why cant I go?Why cant I go
5、?(2)(2)B B:Because you are too young.Because you are too young.(3)(3)在强调句中强调原因,只能用在强调句中强调原因,只能用becausebecause引导。引导。Its because he is kind that we like him.Its because he is kind that we like him.(4)because(4)because从句可用作表语。这是主语一般都从句可用作表语。这是主语一般都是是it it,thisthis,thatthat。This is because the earth is
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