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发表于 2009-12-8 01:02:27
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would (had) rather sb. did sth.表示'宁愿某人做某事'
I'd rather you came tomorrow.
4) wish, wonder, think, hope 等用过去时,作试探性的询问、请求、建议等。
I thought you might have some. 我以为你想要一些。
比较:
一般过去时表示的动作或状态都已成为过去,现已不复存在。
Christine was an invalid all her life.
(含义:她已不在人间。)
Christine has been an invalid all her life.
(含义:她现在还活着)
Mrs. Darby lived in Kentucky for seven years.
(含义:达比太太已不再住在肯塔基州。)
Mrs. Darby has lived in Kentucky for seven years.
( 含义:现在还住在肯塔基州,有可能指刚离去)
一般现在时表将来
1) 下列动词:come, go, arrive, leave, start, begin, return的一般现在时表将来。这主要用来表示在时间上已确定或安排好的事情。
The train leaves at six tomorrow morning.
When does the bus star? It stars in ten minutes.
2)倒装句,表示动作正在进行,如:
Here comes the bus. = The bus is coming.
There goes the bell. = The bell is ringing.
3)在时间或条件句中。
When Bill comes (不是will come), ask him to wait for me.
I'll write to you as soon as I arrive there.
4)在动词hope, take care that, make sure that等后。
I hope they have a nice time next week.
Make sure that the windows are closed before you leave the room.
8 用现在进行时表示将来
意为:"意图"、"打算"、"安排"、常用于人。常用词为 come, go, start, arrive, leave, stay等。
I'm leaving tomorrow.
Are you staying here till next week?
16 用一般过去时代替完成时
1)两个动作如按顺序发生,又不强调先后,或用then,and,but 等连词时,多用一般过去时。
When she saw the mouse, she screamed.
My aunt gave me a hat and I lost it.
2 ) 两个动作相继发生,可用一般过去时;如第一个动作需要若干时间完成,用过去完成时。
When I heard the news, I was very excited.
3)叙述历史事实,可不用过去完成时,而只用一般过去时。
Our teacher told us that Columbus discovered America in 1492.
19 不用进行时的动词
1) 事实状态的动词
have, belong, possess, cost, owe, exist, include, contain, matter, weigh, measure, continue
I have two brothers.
This house belongs to my sister.
2) 心理状态的动词
Know, realize, think see, believe, suppose, imagine, agree, recognize, remember, want, need, forget, prefer, mean, understand, love, hate
I need your help.
He loves her very much.
3 ) 瞬间动词
accept, receive, complete, finish, give, allow, decide, refuse.
I accept your advice.
4) 系动词
seem, remain, lie, see, hear, smell, feel, taste, get, become, turn
You seem a little tired.
24 一般现在时代替完成时
1) 有些动词用一般现在时代替完成时:
hear, tell, learn, write , understand, forget, know, find , say, remember.
I hear (= have heard) he will go to London.
I forget (=have forgotten) how old he is.
2) 句型 " It is … since…"代替"It has been … since …"
3) It is (= has been) five years since we last met.
动词、动词语态
被动形式表示主动意义
be determined, be pleased, be graduated (from), be finished, be prepared (for), be occupied (in), get marries
He is graduated from a famous university.
他毕业于一所有名的大学。
注意: 表示同某人结婚,用marry sb. 或get married to sb. 都可。
He married a rich girl.
He got married to a rich girl.
7 need/want/require/worth
注意:当 need, want, require, worth(形容词)后面接doing也可以表示被动。
Your hair wants cutting.你的头发该理了。
The floor requires washing. 地板需要冲洗。
The book is worth reading.这本书值得一读。
典型例题
The library needs___, but it'll have to wait until Sunday.
A. cleaning B. be cleaned C. clean D. being cleaned
答案A. need (实意) +n /to do,need (情态)+ do,当为被动语态时,还可need + doing. 本题考最后一种用法,选 A。如有to be clean 则也为正确答案。
典:done,"不可能已经"。must not do 不可以(用于一般现在时)。
看了这么多语法了 自己还是没有感觉 感觉还没有吃透 对于我自己来说 我感觉看语法让我感觉很飘渺 不如背英语文章 来的那种语感强烈得多 有的时候知道怎么说 但是用语法的感觉说出来 还是要反应好半天 。。 但是这样有个缺点就是不系统。。
当不定式作主语的句子中又有一个不定式作表语时,不能用It is… to…的句型
(对)To see is to believe.百闻不如一见。
(错)It is to believe to see.
4 It's for sb.和 It's of sb.
1)for sb. 常用于表示事物的特征特点,表示客观形式的形容词,如easy, hard, difficult, interesting, impossible等:
It's very hard for him to study two languages. 对他来说学两门外语是很难的。
2)of sb的句型一般用表示人物的性格,品德,表示主观感情或态度的形容词,如good, kind, nice, clever, foolish, right。
It's very nice of you to help me. 你来帮助我,你真是太好了。
for 与of 的辨别方法:
用介词后面的代词作主语,用介词前边的形容词作表语,造个句子。如果道理上通顺用of,不通则用for。如:
You are nice.(通顺,所以应用of)。
He is hard.(人是困难的,不通,因此应用for。)
用作介词的to
to 有两种用法: 一为不定式+动词原形; 一为介词+名词/动名词, to 在下面的用法中是第二种,即to+ 名词/动名词:
admit to承认,confess to承认,
be accustomed to 习惯于, be used to 习惯于, stick to 坚持, turn to开始,着手于, devote oneself to 献身于,be devoted to 致力于, look forward to 盼望,pay attention to 注意
3)当too 前面有only, all, but时,意思是:非常… 等于very。
I'm only too pleased to be able to help you. 我非常高兴能帮助你。
He was but too eager to get home. 他非常想回家。
12 不定式的特殊句型so as to
1) 表示目的;它的否定式是so as not to do。
Tom kept quiet about the accident so as not to lose his job.
汤姆对事故保持沉默是为了不丢掉他的工作。
Go in quietly so as not to wake the baby.
轻点进去,别惊醒了婴儿。
2)so kind as to ---劳驾
Would you be so kind as to tell me the time?
2) _______, liquids can be changed into gases.
A. Heating B. To be heated C. Heated D. Heat
答案C. 本题要选一分词作为状语。现在分词表主动,正在进行的;过去分词表被动的,已经完成的。对于液体来说是加热的受动者,是被动的,因而选C。它相当于一个状语从句 When it is heated,…
注意: 选择现在分词还是过去分词,关键看主句的主语。如分词的动作是主句的主语发出,分词就选用现在分词,反之就用过去分词。
(Being ) used for a long time, the book looks old.
由于用了很长时间,这本书看上去很旧。
Using the book, I find it useful.
在使用的过程中,我发现这本书很有用。
不及物动词的过去分词表示动作已经发生
gone, fallen, retired, grown-up, escaped, faded, returned
例: a well-read person.一个读过许多书的人
a much-travelled may一个去过许多地方的人
a burnt-out match 烧完了的火柴
worth 的用法
worth,worthy,worth-while都为adj. 意为"值得"。
1. worth: be worth + n. 当名词为金钱时,表示"…… 值得……"
be worth doing sth. "……某事值得被做"
The question is not worth discussing again and again.
2. worthy: be worthy of +n. 当名词为抽象名词时表示"……值得……"
be worthy to be done "某事值得被做"
The question is not worthy to be discussed again and again.
3. worth-while: be worth-while to do sth "值得做某事"
worth while: It is worth while doing sth
It is worth while sb to do sth.
典型例题
It is not ____ to discuss the question again and again.
A.worth B.worthy C.worth-while D.worth while
答案C. 由worth的用法可知,此句只适合词组be worth-while to do sth.。因此选C |
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