when,while,after之间的区别和so that 和so ...that 的区别 谢谢了
一、so that 引导目的状语从句
1.so that引导目的状语从句时，意为“为了，以便”,这时的so that可用in order that来替换。
（1）She dresses like that so that (in order that) everyone will notice her.(她那样的穿戴是为了引起人人的注意)
注：so that和in order that所引导的目的状语从句被强调时习惯置于句首，如：
（2）So that the coming generation can learn the martial arts,he has recently devoted much time to writing books on the subject.(为了下一代能够学会这些武术，他近来花了许多时间著书)。
2.so that引导的目的状语从句，也可以用in order to+V或in order not to+V改写。例如：
（1）Mike bought a camera so that he could take many pictures in summer→Mike bought a camera in order to take many pictures in summer.（迈克买了照相机，为的是夏天他能照许多的照片。）
（2）He went over what he had written again and again so that he couldn’t make any mistakes.→He went over what he had written again and again in order not to make any mistakes.（他一遍又一遍地检查他的写作，为的是不出任何错误。）
3.so that引导结果状语从句可以转换为“so……that”的句式。如：
Liu Hai ran very fast, so that he was the winner of the boy’s 1000-metre race.（刘海跑得很快，结果成了男子1000米赛跑的获胜者。）
→Liu Hai ran so fast that he was the winner of the boy’s 1000-metre race（刘海跑得如此的快，以至于成了男子1000米赛跑的获胜者。）
注：so that引导的从句是目的状语从句还是结果状语从句，可以从以下两点加以区分。
（1）that从句中含有can、may、would等，且so that前面没有逗号将其与主句隔开时，这种状语从句表示目的。如上述例句1。
（2）that从句中没有情态动词，且so前面有逗号将其与主句隔开，尤其是句中用一般过去式或过去完成时，这种从句通常表示结果。
二、so……that引导的结果状语从句so……that中的so为副词起加强语气的作用
1.如果so前面是be、become、feel等系动词，So的后面是形容词。
例如：He was so angry that he couldn’t go to school. (他年龄太小不能去上学)。He became so angry that he couldn’t speak. (他气得连话都说不出来了。）注意：这种用法通常可以分以下四种情况。
（1）so+adj+that…….例如：He was so excited that he couldn’t go to sleep.（他兴奋得睡不着觉）。
（2）so+adj+a/an+单数可数名词+that……例如：It was so busy a day that we didn’t go shopping.那天很忙，我们没有去购物。
（3）so+many/few+复数可数名词+that……例如：There were so many shoes in the shop that I couldn’t decide which pair to buy.（商店里的鞋子太多，我决定不去买那一双。）
（4）so+much/little+不可数名词+that……例如：There was so much rain last spring that the corn didn’t +grow well.（去年春天雨水太多，庄稼长得不好。)
2.如果so前面是行为动词，那么so后面常跟副词，常用在“…….so+adv+that…….”的句式中。
例如：He speaks so loudly that the people at back could hear him clearly. (他说话声音很大，以致坐在后面的人们能清楚听到。）
She worked so quietly that no one knew he was there.（他静静地工作着，以致没有人知道他在哪里。）
注：在so……hat构成的主从复合句中，如果从句为否定句时，可以用“too+adj.to+V”或“not enough to+V”结构将主从复合句转换为简单句，如果从句为肯定句，则可以用“enough to+V”结构将主从复合句转换为简单句。
例如：The basket is so heavy that we can’t carry it. (这个篮子太重，以至于我们搬不动它。）→The basket is too heavy for us to carry it.（这个篮子太重了，我们搬不动。）→The basket isn’t light enought for us to carry it.（对我们来说这个篮子不足够轻。）
Sothat与 so…that有所不同，前者用来引导目的状语从句或结果状语从句。引导目的状语从句，so that意为“为的是”或“以便”；引导状语从句时，so that意为“结果是”。
例如：We have planed many trees so that they will stop the wind from blowing the earth away. (我们种了很多树，为的是阻止风把土刮走。）
so that.和 so.that的区别主要是用法不同、可替换短语不同、释义不同。
1、释义不同：so that的意思是以致、为了、以便于；so…that…的意思是如此……以致。
2、用法不同：so that 引导目的状语从句，常放于句中；so…that…中so是副词，常常用来修饰形容词和副词，that引导结果状语从句，常和too…to…结构互换。
例句：
（1）My sister made a model plane so that she could help with her friend studying the science last night. 昨天晚上我妹妹制作了一个飞机模型以便她能帮助她的朋友学习科学。
（2）She is so beautiful that all boys want to make friends with her. 她是如此的美丽以至于所有的男孩们都想和她做朋友。
3、可替换短语不同：so that相当于in order to/so as to，常放于句中，但是in order to常放于句首或句中，so as to常放于句末；so…that…常和too…to…结构互换。
例句：
（1）In order to watch the soccer game, I stayed up late last Saturday. 为了观看足球比赛，上周六我熬夜了。
（2）My sister is too young to go to school. 我妹妹是如此的小以至于不能去上学。=My sister is so young that she can't go to school.
扩展资料：
so…that的用法：
常用于以下四个句型：
1、so+形容词/副词+that…
This teacher is so kind that we all like him.
这个老师非常和谒，我们都喜欢他。
He ran so quickly that we all couldn’t catch up with him.
他跑得很快，我们都追不上他。
2、so+形容词+a/an+单数可数名词+that…
This is so interesting a book that we all enjoy reading it.
这本书非常有趣，我们都喜欢看。
3、so+ many(多) / few(少) +复数可数名词+that…
He has so many books that I can’t count them.
他有很多书，我数也数不清。
4、so+ much(多) /little(少) +不可数名词+that…
There was so much food that we couldn’t eat it all.
食物太多了，我们吃不完。
参考资料：百度百科-状语从句
①when是at or during the time that, 既指时间点，也可指一段时间； while是during the time that，只指一段时间，因此when引导的时间状语从句中的动词可以是终止性动词，也可以是延续性动词，而while从句中的动词必须是延续性动词。②when 说明从句的动作和主句的动作可以是同时，也可以是先后发生；while 则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生。③由when引导的时间状语从句，主句用过去进行时，从句应用一般过去时；如果从句和主句的动作同时发生，两句都用过去进行时的时候，多用while引导，如： a. When the teacher came in, we were talking.当此句改变主从句的位置时，则为：While we were talking, the teacher came in. b. They were singing while we were dancing.④when和while 还可作并列连词。when表示“在那时”；while表示“而，却”，表对照关系。如：a. The children were running to move the bag of rice when they heard the sound of a motor bike.孩子们正要跑过去搬开那袋米，这时他们听到了摩托车的声音。b. He is strong while his brother is weak.他长得很结实，而他弟弟却很瘦弱。after是说某时间点以后，和when,while意思上有较大的不同祝学业进步！
Jim is six.Henlen is eight.合并句子。
Jim is six and Henlen is eight.Jim is six but Henlen is eight.
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长治市13428058709： when,while,as soon as,before,after的区别 - ？
湛馨追风： when主句是进行时态,从句用一般,while从句是进行时态,主句用一般,如果前后都是进行,那么只能用while,as soon as前后不太要求,它的意思是易一,,,就,,,before,after的不分主句和从句,只讲究时态,before是在,,之前,前面用完成多一点,after用过去式,不懂了再问
长治市13428058709： when和while的用法和区别 - ？
湛馨追风： ①when意为＂在……时;当……时＂,可表示＂点时间＂或＂段时间＂,从句谓语可以是终止性动词,也可以是延续性动词.例如: When I got home, he was having supper. ③while只可表示＂段时间＂,从句谓语只限于延续性动词.例如: While I was sleeping, my father came in. 注:从句谓语是持续性动词时,when、while和as可以互换?主?从句谓语都是终止性动词时,when与as可互换?从句谓语表示状态时,通常用while
长治市13428058709： when和while的区别 - ？
湛馨追风： as和when、while的区别
长治市13428058709： when 和 while - ？
湛馨追风： 过去进行时或一般过去式when一般过去式 过去进行时或一般过去式while过去进行时 参考一下
长治市13428058709： When和While 具体要怎么区分？
湛馨追风： 通常二者的区分就在于:when后句子通常接过去时,while接进行时~~.不过这些情况不包括在从句中.二者都翻译成中文:当.但是while也有表示转折的意思,译:然而.
