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最近kiki都没上坛子~~~不过作业可没有落下呢~~
Grammar~~
11 用于现在完成时的句型
1)It is the first / second time…. that…结构中的从句部分,用现在完成时。
It is the first time that I have visited the city.
It was the third time that the boy had been late.
2)This is the… that…结构,that 从句要用现在完成时.
This is the best film that I've (ever) seen.
这是我看过的最好的电影。
This is the first time (that) I've heard him sing.这是我第一次听他唱歌。
(2) ---Have you ____ been to our town before?
---No, it's the first time I ___ here.
A. even, comeB. even, have comeC. ever, comeD. ever, have come
答案D. ever意为曾经或无论何时,反意词为never,此两词常用于完成时。 This is the largest fish I have ever seen. It is / was the first time +that-clause 的句型中,从句要用完成时。
注意:非延续性动词的否定形式可以与表示延续时间的状语连用。即动作不发生的状态是可以持续的。
(错)I have received his letter for a month.
(对)I haven't received his letter for almost a month.
15 过去完成时
2) 用法
a.在told, said, knew, heard, thought等动词后的宾语从句。
She said (that) she had never been to Paris.
b. 状语从句
在过去不同时间发生的两个动作中,发生在先,用过去完成时;发生在后,用一般过去时。
When the police arrived, the thieves had run away.
c. 表示意向的动词,如hope, wish, expect, think, intend, mean, suppose等,用过去完成时表示"原本…,未能…"
We had hoped that you would come, but you didn't.
3)过去完成时的时间状语before, by, until , when, after, once, as soon as。
He said that he had learned some English before.
By the time he was twelve, Edison had began to make a living by himself.
Tom was disappointed that most of the guests had left when he arrived at the party.
典型例题
The students ___ busily when Miss Brown went to get a book she ___ in the office.
A. had written, leftB,were writing, has leftC. had written, had leftD. were writing, had left
答案D. "把书忘在办公室"发生在"去取书"这一过去的动作之前,因此"忘了书"这一动作发生在过去的过去,用过去完成时。句中 when表示的是时间的一点,表示在"同学们正忙于……"这一背景下,when所引导的动作发生。因此
前一句应用过去进行时。
注意:had no … when还没等…… 就……
had no sooner… than刚…… 就……
He had no sooner bought the car than he sold it.
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.
22 一般现在时代替将来时
时间状语从句,条件句中,从句用一般现在时代替将来时
When, while, before, after, till, once, as soon as, so long as, by the time, if, in case (that), unless, even if, whether, the moment, the minute, the day, the year, immediately
(2) 表示现在已安排好的未来事项,行程等活动。
The museum opens at ten tomorrow.博物馆明天10点开门。(实际上每天如此。)
23 一般现在时代替过去时
1 )"书上说","报纸上说"等。
The newspaper says that it's going to be cold tomorrow.
报纸上说明天会很冷的。
2) 叙述往事,使其生动。
Napoleon's army now advances and the great battle begins.
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.
25 一般现在时代替进行时
1) 句型:Here comes… ; There goes…
Look, here comes Mr. Li.
26 现在进行时代替将来时
1) 表示即将发生的或预定中计划好的活动。
Are you staying with us this weekend? 这周和我们一起度周末吗?
We are leaving soon.我们马上就走。
2) 渐变动词,如:get, run, grow, become, begin及die。
He is dying.
连词
连词主要可分为两类:并列连词和从属连词。并列连词用来连接平行的词、词组和分句。如:and, but, or, nor, so, therefore, yet, however, for, hence(因此,所以), as well as, both…and, not only…but also, either…or, neither…nor, (and)then等等。
Make up your mind, and you'll get the chance.
= If you make up your mind, you'll get the chance.
注意: not only… but also 关联两个分句时,一个分句因有否定词not 而必须倒装。
Not only does he like reading stories, but also he can even write some.
2 比较and和or
1) 并列结构中,or通常用于否定句,and用于肯定句。
2) 但有时and 也可用于否定句。请注意其不同特点:
There is no air or water in the moon.
There is no air and no water on the moon.
在否定中并列结构用or 连接,但含有两个否定词的句子实际被看作是肯定结构,因此要用and。
典型例题
---I don't like chicken ___ fish.
---I don't like chicken, ___ I like fish very much.
A. and; and B. and; but C. or; but D. or;and
答案C。否定句中表并列用or, but 表转折。
判断改错:
(错) We will die without air and water.
(错) We can't live without air or water.
(对) We will die without air or water.
(对) We can't live without air and water.
5 表原因关系
注意:
a. 两个并列连词不能连用,但therefore, then, yet.可以和并列连词连用。
You can watch TV, and or you can go to bed.
He hurt his leg, and so / and therefore he couldn't play in the game.
b. although… yet…,但although不与 but连用。
(错)Although he was weak, but he tried his best to do the work..
(对)Although he was weak, yet he tried his best to do the work.
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