so that 用法.doc

Speech was _ make everyone in the auditorium ,dtrm 礼堂，会堂；观众席 burst out laughing.A. so that B. such that C. so as to D. such as tosuch as to到如此程度以致；像这个样子因而be动词后应是表语 such 代词这里做表语 as to 加上后面的部分是修饰 such的so that作为从属短语连词，既可以引导目的状语从句，也可引导结果状语从句一、引导目的状语从句so that以便，为了，引导一个表示目的的状语从句，此时可与in order that换用；从句谓语中常用情态动词may / might, can /could, should, would等；主从句间连接紧凑，没有逗号相隔。例：My old father began to study computer at the age of sixty so that(in order that) he might keep up with times.父亲六十岁时才开始学习电脑，以便跟上时代。二、引导结果状语从句so that因此，所以，引导一个表示结果的状语从句，此时不能与in order that换用；从句中谓语根据需要使用相应的时态，主从句间可有逗号相隔。She had not planned her time well, so that she did not finish her homework on time.她没把时间计划好，所以没按时完成家庭作业。三、辨别两种不同状语从句1)根据句子结构辨别从句谓语中含有情态动词may / might, can /could, should, would等，这时so that引导的是一个目的状语从句；从句前面有逗号和主句相隔，此时so that引导的是一个结果状语从句。试对比以下两个例句：Yesterday morning Yang Cheng got up early so that she could catch the first bus.昨天早上杨成为了赶上早班车起床很早。Yesterday morning Yang Cheng got up early, so that she caught the first bus.昨天早上杨成起床很早，因此，她赶上了早班车。2)根据主从句逻辑关系辨别so that引导目的状语从句，一般表示尚未完成的目的或意图，主句和从句之间是结果与目的关系；而so that引导的结果状语从句则是表示主句所导致的结果，主句和从句之间是原因与结果的关系。试比较：四、同其它结构转换so that引导目的状语从句时，可以与表目的的动词不定式(not)to do/so as (not) to do/in order (not) to do互换。但主从句主语须一致(句)，否则不能转换(句)。We went to the airport so that we might meet Professor Yang there.We went to the airport to meet Professor Yang there.We went to the airport in order to meet Professor Yang there.We went to the airport so as to meet Professor Yang there.so as to: 为的是,以便so as to 引导目的状语，但不放句首in other to 和它意思一样，当可以放句首例句与用法: 1. He ran quickly so as to catch the last bus. 他跑得很快以便赶上那末班车。 2. The two lovers dropped back so as to be alone. 那对情人落在后面，为的是两人好单独在一起。 such 有两种词性：名词性的不定代词和形容词。正是由于词性不同，所以在表示“如此.以致于” 这种意思时就出现了两种不同的结构。 1. such as to . 中的 such 属于不定代词，指代上文提到过的人或事物，意思是“这样的人/如此的事物”，如： * The case has been such as to prove true. 情况已经如此，以致于证明是真实的。 * Their anxiety was such as for them not to be able to sleep. 他们如此焦虑，以致于难以入睡。 2. such . as to . 中的 such 属于形容词，需要放在名词前作定语，意思是“这样的/如此的.”，如： * We are not such fools as to believe him. 我们不是那样的蠢人, 以致于能够相信他。 * She had such a fright as to faint. 她如此吃惊以致于吓得昏了过去。二、Such as to 和 such.as to 中，如果把不定式加上主语改为结果状语从句，就变成了 such that . 和 such . that .。以下就是上面句子改写成的从句： * The case has been such that it can prove true. 情况已经如此，以致于（情况）证明是真实的。 * Their anxiety was such that they could not sleep. 他们如此焦虑，以致于(他们)难以入睡。 * We are not such fools that we can believe him. 我们不是那样的蠢人, 以致于(我们)能够相信他。 * She had such a fright that she fainted. 她如此吃惊以致于（她）吓得昏了过去。such that如此以致such that后面是加一个句子，比如：His kindness was such that we will never forget him.他待人那么厚道，我们永远不会忘记他。su