初三化学教学心得体会
新一轮中考复习备考周期正式开始,贤知助手为各位初三考生...
重点语法专题 ☆专题1:一般将来时
一般将来时表示将来某个时间要发生的动作或者存在的状态。通常与表示将来的时间状语连用, 如tomorrow, the day after tomorrow, next year, next month, next week, in 100 years等。
be going to do (动词原形)结构:表示打算、准备做的事情或者肯定要发生的事情。
will do 结构表示将来的用法:
1. 表示预见 Do you think it will rain? You will feel better after a good rest.
2. 表示意图 I will borrow a book from our school library tomorrow. What will she do tomorrow?
基本构成如下: 一般疑问句构成:
(1)will+主语+do…? Will Sarah come to visit me next Sunday?
(2)there be 结构的一般疑问句:Will there + be …?
Will there be fewer trees? Yes, there will. / No, there won’t 否定句构成:will + not (won’t)+do
Sarah won’t come to visit me next Sunday.
特殊疑问句构成: 特殊疑问词+will+主语+…?
What will Sarah do next Sunday?
★ ★ 练一练 ★★ 根据例句,用will改写下列各句
例:I don’t feel well today. (be better tomorrow) .
1. Gina has six classes today. (have a lot of homework tonight)
______________________________________________________________
2. I’m tired now. (sleep later)
_____________________________________________________________
3. My parents need a new car. (buy one soon)
____________________________________________________________
4. We can’t leave right now. (leave a little later)
___________________________________________________________
5. The weather is awful today. (be better tomorrow)
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☆专题2:should的用法:should用来提出建议和忠告,后边加动词原形,否定句直接在should后边加not.
学习向别人提建议的几种句式:
(1)I think you should… (4)Why don’t you…?
(2)Well, you could… (5)What about doing sth.?
(3)Maybe you should … (6)You’d better do sth.
★★练一练★★
用should或shouldn’t填空
1. I can’t sleep the night before exams. You _________ take a warm shower before you go to bed.
2. Good friends ___________ argue each other.
3. There is little milk in the glass. We ____________ buy some.
4. They didn’t invite you? Maybe you ____________ be friendlier.
5. I am a little bit overweight. So I think I _____________ do exercises every day.
☆专题3:过去进行时
A. 概念和形式:
过去进行时表示在过去某一时刻或某一段时间内进行或发生的动作。其形式为was /were + V-ing。
常与表示过去的时间状语连用,如:last night, last Saturday等;
或者与when, while, as引导的过去时间状语连用。
例如: We were watching TV from seven to nine last night.
B. 具体用法:
1) 表示过去某一时刻或过去某段时间内正在进行的动作,一般要有表示过去时间的状语。
例如:At that time she was working in Oxford.
It was raining at 6 o'clock this morning.
2) 在含有时间状语从句的复合句中,延续性动词用过去进行时,非延续性动词用一般过去时。 例如:They were watching TV when I entered the room.
若主句和从句的动词均为延续性动词,则可以两边都可以采用过去进行时。
例如:The children were playing with their toys while I was eating my dinner.
3) 可用来表示由过去某时持续到另一时间的过去动作。
例如: He was studying in Cambridge between 1999 and 2001.
这种时间状语亦可同一般过去时连用,如:
例如: He worked from morning till night yesterday.
注意:
(一) 有一些动词一般不用过去进行时:如agree, be, believe, belong, care, forget, hate, have(拥有),
hear, know, like, love, mean, mind, notice, own, remember, seem, suppose, understand, want等
例如: 误:I was knowing the answer. 正:I knew the answer.
误:I wasn't understanding him. 正:I didn't understand him.