中考英语不定式讲解

发布 2021-04-11 20:58:28 阅读 2954

初三英语名师金牌讲堂讲座系列(二)

接上讲)want

need to be done/doing

require

口诀:主语为物,后接to be done或者主动doing。

例①:the classroom needs cleaning/to be cleaned.(这间教室需要打扫一下。)

例②:the watch needs fixing/to be fixed.(这块手表需要修理一下。)

5)不定式作宾语补足语:

hope:hope to do/ hope that …从句。

1> 表示“希望”的三种形式: wish:虚拟语气结构。

expect:跟that从句,expect to do,expect sb. to do

口诀:看到hope绝不选。(没有hope sb. to do的结构)

2> v.+ sb.+ to do的结构:

telllet

ask + sb. +to do sth. 但是: make +sb. +do sth.

orderh**e

3> 感官动词(“七窍动词”)see, watch, notice, observe, smell, hear, feel+ sb. +do sth.

例①:i often hear a mad guy sing upstairs every midnight.

我经常听到一个疯子在楼上每天半夜唱歌。)

例②:i often see tom’s father drive tom to school every morning.

(我经常看到汤姆的爸爸每天早上开车子送汤姆去学校。)

6)不定式作主语补足语:

被动的概念:“反宾为主”。

结构:“七窍动词”被动+ to do:sb. be seen/ heard/ noticed/ observed+ to do sth.

例①:the mad man is often heard to sing upstairs every midnight.

每天晚上那个疯子在楼上唱歌的歌声经常会被听到。)

例②:robert is noticed to do the homework for mary.

(罗伯特被查出来替玛丽做作业。)

练习:1. 汤姆被告知要及时订正他的错误。

tom was told to correct the mistakes in time.

2. 所有的士兵被命令全体立正。

all the soldiers were ordered to stand attention.

3. 有人经常看到三班的学生经常照顾老年人。

the students in class three are often noticed/ seen to look after/ take care of the old.

7)不定式作状语:

1> 目的状语:in order to/ so as to,so as to 不能放在句首。

否定形式:so as not to/ in order not to

口诀:not位置最前方:not to do, not to be done…

2> 结果状语:too… to… ,enough to, only to do

)too…to…结构找介词,往往后方的动词是不及物动词。

例①:the chair is too dirty to sit on.(这个椅子太脏了,不能坐上去。)

例②:the room is too dirty to live in.(这间房间太脏了,人不能住进去。)

听力考点:too…to…结构除了表示否定,还表示“肯定的概念”。

例①:the fans are too anxious to know the result of the game.(球迷们急于知道比赛的结果。)

例②:they are too excited to jump.(他们激动地跳了起来。)

)enough to结构:放在形容词或副词后方。

例①:the children are too young to ride in the street.(改写成enough to结构)

the children are not old enough to ride in the street.

)only to do 表示“出乎意料做某事”

only doing 表示“某事在意料之中”

例①:tom hurried to the railway station, only to find the train had already gone.

(汤姆急匆匆的感到火车站,最终发现火车已经发走了。)【意料之外】

例②:yesterday i went to visit my middle school teacher, only to be told he had gone to america.

(昨天我去拜访我的中学老师,最终被告知他已经去美国了。)【意料之外】

例③:the police telephoned tom that his home had been broken into. tom hurried back home, only finding everything flying.

(**给汤姆打**说他家里已经被盗,汤姆急忙回家,发现所有的东西都不见了。)【意料之中(有“**告知家中被盗”的背景)】

例④:tom rushed into the nearest supermarket, just to find a shelter from the rain.

汤姆冲进最近的超市,只是要找一个避雨的地方。)

总结:only to do:不曾意料,出乎意外地…

only doing:意料之中,不出所料…

just to do:就是为了做(目的状语)

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