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1、目的状语从句 目的状语从句：从句部分是用以补充说明主句中谓语动词发生的目的。 引导目的状语从句常用的连词有： that（以便），so that（以便）， in order that（为了；以便），lest（免得；唯恐）， for fear that（生怕；以免）等词引导； 目的状语从句的谓语常含有may, might, can, could, should, would等情态动词。 1 You must speak louder so that /in order that you can be heard by all. 2.He wrote the name down for fear t
2、hat(lest) he should forget it. 3.Better take more clothes in case the weather is cold. 4.Say it louder(so)that everyone can hear you. 大声说，以便大家都能听到你。 5.I am telling you that lest you should make a mistake. 我告诉你这一点，以免你搞错。 6. Speak clearly，so that they may understand you.7. She has bought the book in o
3、rder that she could follow the TV lessons.= =She has bought the book in order to follow the TV lessons.8. He left early in case he should miss the train.9. He got up early so that he could catch the first bus.= He got up early(in order) to catch the first bus.10. I lent him $ 50 in order that he cou
4、ld go for a holiday.学习目的状语从句应注意以下两点： （1） 目的状语从句中常含有can,could, may, might, should等情态动词。 1.I got up early so that I could catch the first bus. 我起得很早，目的是为了赶上头班公共汽车。 （2）在口语中so可以引导目的状语从句。 1. Well sit nearer the front so we can hear better.= Well sit nearer the front (in order to / so as to )to hear bette
5、r. 我们坐的靠前一点，因此，我们听得清楚一点。 【注意】in order that 与 in order to的区别： in order that+从句 in order to+动词原形（ in order to后面加的那个不叫目的状语从句，叫目的状语） 目的状语从句的一个特点：由于目的都是未来的行为， 所以从句中一般用表示未来可能性时态，比如上面两句中的could。 当然还可以用will,would,can,等 用so that和sothat,suchthat 填空并翻译1.Youd better speak louder _ you can be heard by all.2.He sp
6、oke _ loud _he was heard by all.3.The weather is _ nice that all of us want to go to the park.4.Its _ nice weather that all of us want to go to the park.5.They are _beautiful pictures that I want to buy all of them.6.He is _ honest a boy that we allbelieve him.7.He is _a honest boy that we all trust
7、 him.8.Tim had _ much work to do that he decided not to see the film that night.答案：1.Youd better speak louder so that you can be heard by all.2.He spoke so loud that he was heard by all.3.The weather is so nice that all of us want to go to the park.4.Its so nice weather that all of us want to go to
8、the park.5.They are such beautiful pictures that I want to buy all of them.6.He is so honest a boy that we allbelieve him.7.He is such a honest boy that we all trust him.8.Tim had so much work to do that he decided not to see the film that night.结果状语从句和目的状语从句有何区别so.that和so that的区别 “so.that.”句型的意思是“如
9、此/这么以致于”，常引导结果状语从句，但“so.that.”是个爱“变脸”句型，你一不留意就会出错。“so.that.”句型及其转换也是中考的热点，现将其用法总结归纳如下，让我们一起来看看它是怎样变的吧。 一、 so. that.句型中的so是副词，常常用来修饰形容词或副词，常用句型为：主语+谓语+so+adj. / adv. + that从句。例如： 1. She is so young that she cant look after herself. = She is too young to look after herself.2. The boy ran so fast that
10、I couldnt catch him. = The boy ran too fast for me to catch .3. He was so angry that he couldnt say a word. =He was too angry to say a word .二、 在“such. that.”句型中，such修饰名词，意思也是“如此以致于”但当名词前有many、much、(a) few、(a) little等词修饰时，句子中要用“so.that.”而不能用“such.that.”。例如： 1. He has so much money that he can buy wh
11、at he wants. 2. Ive had so many falls that I have pains here and there. 3. There is little water in the glass that I cant drink any more. 三、 so与that也可连起来写，即变成：. so that .(以便 / 为了)，引导目的状语从句。例如： 1. I got up early so that I could catch the early bus. 2. Please open the window so that we can breathe fre
12、sh air. 3. You must go now so that you wont be late. 四、以“so.that”引导的结果状语从句可以转换成不定式的简单句，即可转换为“.enough to.”或“.too.to”句型，但这种转换必须符合下列条件： 1. 当主句和从句的主语一致，且that从句是肯定句时，可用“enough to do sth.”来转换。例如： .The man is so strong that he can lift the heavy box. =The man is strong enough to lift the heavy box. . He wa
13、s so clever that he can understand what I said. =He was clever enough to understand what I said. 2. 当主句和从句的主语不一致，且that从句是肯定句时，可以用“enough for sb. to do sth.”来替换，但须注意不定式的宾语要省略。例如： The question is so easy that I can work it out. =The question is easy enough for me to work out. The box is so light that
14、he can carry it. =The box is light enough for him to carry. 3. 当主句和从句的主语一致，且that从句是否定句时，可以用“too.to”来替换。例如： The girl is so young that she cant dress herself. =The girl is too young to dress herself. I was so tired that I couldnt go on with the work. =I was too tired to go on with the work. 4. 当主句和从句的主语不一致，且that从句是否定时，如果要用“too.to.”替换“so.that.”，则用介词for引出动词不定式的逻辑主语，可以用“too.for sb. to do sth.”来替换，注意不定式的宾语要省略。 The bag is so heavy that she cant move it. =The bag is too heavy for her to move. It is so hot that we cant sleep. =It is too hot for us to sleep.