動詞不定式做狀語時表示目的和結(jié)果的用法

1、動詞不定式做狀語時表示目的和結(jié)果用法總結(jié)1. 作目的狀語:I came here to see you.To stop the train, pull the lever downwards.目的狀語還可以用如下表達法：肯定：toin order to + 動詞原形 so as toI come to see her. = I come in order to see her. = I come so as to see her.thatso that + 主語 + may/might + 動詞原形in order that I come that I may see her. = I com

2、e in order that I may see her. = I come so that I may see her.否定：not toin order not to + 動詞原形 so as not tothatso that + 主語 + may/might + not + 動詞原形in order that He went away not to see me.= He went away in order not to see me.= He went away so as not to see me.= He went away in order that he might n

3、ot see me.= He went away that he might not see me.= He went away so that he might not see me.in order to, in order that和so as to, so that的區(qū)別in order to可以用在句首或句末，但so as to只能用在句末。如：He got up very early in order to/so as to catch the first bus.In order to catch the first bus, he got up very early.（此時不能

4、用so as to）so as to 和in order to的漢語意思應(yīng)該是一樣的“為的是，為了”。它們的英語功能也是一樣的，都可以用來引導(dǎo)目的狀語。它們的不同之處就在于so as to 不能用于句子的開頭，在句子開頭只能用in order to.另外，1.in order to 一般用in order that加從句來替換；而so as to 一般用so that加從句來替換。in order that 可以在句首，so that和so as to 一樣不能在句首。2.當(dāng)這兩個短語后的不定式動詞的邏輯主語和句子的主語一致時，“in order to , so as to +不定式”可以簡化

5、為“不定式”In order to get to school on time, he got up earlier.這個句子可以表達為下列幾種方式：In order that he could get to school on time, he got up earlier.He got up earlier in order to get to school on time.He got up earlier in order that he could get to school on time.He got up earlier so as to get to school on ti

6、me.He got up earlier so that he could get to school on time.To get to school on time, he got up earlier. （這種不定式有時可以表示目的以外的狀語）注意：不定式本身有自己的主語時，可用“forto”來表示。如：My father bought a new book for me to read.2. 作結(jié)果狀語:He hurried to the school to find nobody there.What have I done to offend you?結(jié)果狀語還可以用如下表達法：

7、adj as to + 動詞原形so + + (表示正面的結(jié)果，解釋為“如此.以至于”) adv that + 主語 + can/could + 動詞原形 adj= + enough to + 動詞原形 (表示正面的結(jié)果，解釋為“如此.以至于”) advHe studied so hard as to pass the examination.= He studied so hard that he could pass the examination.= He studied hard enough to pass the examination注意：enough與形容詞或副詞連用時，要置于

8、形容詞或副詞之后。The water is warm enough for us to swim.I wish youd write clearly enough for us to read it.enough可置于名詞前做修飾語， 在正式語體中有時可以放在名詞后。Have you got enough room/room enough to seat all of us? adj adjtoo + + to = so + + that + 主語 +cannot + 動詞原形 adv adv adj= not + + enough to + 動詞原形 (表示反面的結(jié)果，解釋為“太.以至不能”

9、) advYou are too young to learn to drive.= You are so young that you cant learn to drive.= You are not old enough to learn to drive.such as to . 和such.as to及such that和suchthat的區(qū)別1. such 有兩種詞性：名詞性的不定代詞和形容詞。正是由于詞性不同，所以在表示“如此.以致于” 這種意思時就出現(xiàn)了兩種不同的結(jié)構(gòu)。such as to . 中的 such 屬于不定代詞，指代上文提到過的人或事物，意思是“這樣的人/如此的事物

10、”，如：The case has been such as to prove true. 情況已經(jīng)如此，以致于證明是真實的。Their anxiety was such as for them not to be able to sleep. 他們?nèi)绱私箲]，以致于難以入睡。2. such . as to . 中的 such 屬于形容詞，需要放在名詞前作定語，意思是“這樣的/如此的.”，如：We are not such fools as to believe him. 我們不是那樣的蠢人, 以致于能夠相信他。She had such a fright as to faint. 她如此吃驚以致于

11、嚇得昏了過去。Such as to 和 such.as to 中，如果把不定式加上主語改為結(jié)果狀語從句，就變成了 such that . 和 such . that .。以下就是上面句子改寫成的從句：The case has been such that it can prove true. 情況已經(jīng)如此，以致于（情況）證明是真實的。Their anxiety was such that they could not sleep. 他們?nèi)绱私箲]，以致于(他們)難以入睡。We are not such fools that we can believe him. 我們不是那樣的蠢人, 以致于(我們)能夠相信他。She had such a fright that she fainted. 她如此吃驚以致于（她）嚇得昏了過去。表示令人意外的結(jié)果用only + to find / discover / real