初中英语语法课件.ppt

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动词构成: was/were+现在分词(--ing) 以work为例:was/were working
否定构成: was/were not+现在分词
一般疑问构成及简答举例: Was/Were+主语+现在分词+其它? Yes, I was No, I wasn’t
一般现在时的使用:
1.一般现在时表示总是、通常、习惯 性的动作或状态。
It snows in winter. I watch television every day.
2.用于对客观事实的普遍性的陈述。
Water consists of hydrogen and oxygen. Most animals kill only for food. The world is round.
1.一般过去时表示一个动作或情况在过去 某个的时间开始和结束. I walked to school yesterday. I bought a new car three days ago.
walked,bought now
2.表示过去经常性的动作或情况。 I often got up at 6:00 last year.
Outline
过去
1 .一般现在时 2 .一般过去时 3 .一般将来时 4 .过去将来时: 5 .过去进行时: 6. 过去完成时 7. 现在进行时: 8. 现在完成时:
现在
将来
用法: 经常性的和习惯性的动作
常用时间状语 : usually, sometimes, in spring, every day, in the morning
特殊疑问句举例:What did he do yesterday? When did he get up this morning?
注意:He has opened the door.(表示过去“开门”的动作对现在的影响是 门还开着)He opened the door.(不能确定门现在是否开着)
一般过去时的使用:
A: What was it like?
B:I thought it would be busy, but it was very quiet.
三、I thought I was going to...表示“原本打算 干某事”。
---Alice, why didn’t you come yesterday? ---I ___, but I had an unexpected visitor.
一般将来时的使用:
1、 基本结构是will / shall do。 例:We shall send her a glass hand-made craft as her birthday gift.(我们将送给她一个玻璃的手工制品,作为给她 的生日礼物。)
2、 有些动词,如:arrive, be close, come, do, done, go, have, leave, open, play, return, sleep, start, stay等,用于一般 进行时,并且通常与一个表示将来时间的时间状语连用,可以 表示将来时。 例:My mother is coming to visit me next week and is staying here until May.(我妈妈下周将来看我,并会呆到5月。)
动词构成: 1. will/shall+动原 2.am/is/are going to+动词原型 3. am/is/are(about)+动词不定式 4. am/is/are+coming等现在分词
以work为例:will/shall work
am/is/are going to work
am/is/are(about) to work am/is/are coming/leaving…
用法:从过去某时间来看将要发生的动作或状态, 常用于宾从句
常用时间状语:the next week等
动词构成: 1、would/should+动原 2、 was/were going to+动原 3、was/were(about) to+动原
以work为例:would/should work was/were going to work was/were(about) to work
A. had B. would C. was going to D. did
---Come in, Peter, I want to show you something. ---Oh, how nice of you! I ___ you ___ to bring me a
gift.
A. never think; are going B. never thought; were going C. didn’t think; were going D. hadn’t thought; were going
动词构成:动词过去时(--ed) listen—listened study---studied stop-----stopped come----came
否定构成:didn’t+动原 didn’t work used not (didn’t use) to
work
一般疑问构成及简答举例:Did+主语+动原+其它?
注意: start, leave, go, come等的一般现在时可表示按规定要发生的未 来动作,如列车将离开。客观真理在从句中也用一般现在时.
Examples:
It snows in winter. It doesn’t snow in winter. Does it snow in winter?
c) 能或不能发生的事情(接近can, may) 例:How am I to pay such a debt?(我怎么可能还得起这么大的一 笔债呢?)
d) 不可避免将要发生的事情,后来将要发生的事情。 例:I assure you that the matter _______ as quickly as possible. Have a little patience. A. will be attended B. will be attended to C. is attended D. is attended to
vacation together.
Fra Baidu bibliotek
过去将来时的使用:
一、过去将来时表示对于过去某一时间而言将要发生的动 作或存在的状态。 would或was /were going to + V
would可用于各种人称。
二、would +V还可表示过去的习惯动作,在这点上同used to同义。
When we were children, we would/used to go swimming every summer.
5、 “be to do”的5种用法:
a) 表示“按计划、安排即将发生某事或打算做某事”。 例:She is to be seen in the lab on Monday.(星期一你准会在实 验室见到她。)
b) 该做或不该做的事情(语气上接近于should, must, ought to, have to),表示一种命令、规劝性语气。 例:You are to go to bed and keep quiet, kids. Our guests are arriving in less than 5 minutes.(孩子们,你们必须 上床睡觉,不 准吵闹。我们的客人5分钟之内就要到了。)
Never thought “从未想过“, 与how nice of you所表达的喜悦之情相符
This morning Alice ___ out ___ the door opened and in came some strangers.
A. was just about to go; while B. went ; when C. was going ; while D. was just about to go; when
否定构成:will/shall not… am/is/are not…
特殊疑问句举例:What will you do tomorrow? When are we going to have a class meeting?
注意:在if条件或as soon as等时间状语从句中用一般现在时代替一般将来时。
否定构成:would/should not… was/were not…
一般疑问构成:常用if或whether引导宾从
特殊疑问句举例:He asked what they would do the next week. I thought I would make lots of newfriends. They said that they were going to spend the
比较:I used to walk to school, but now I go by bike. used to +V,指过去的习惯或状态,暗含的意思是“现在不做某事 了”。
A: Where did you go?
B: I was going to visit the park, but in the end I went to the free market.
I didn’t walk to school yesterday.
Did you walk to school yesterday ?
用法:将来会出现或发生的动作
常用时间状语:this evening, tomorrow, next month, in a few minutes, at the end of this term
一般现在时的动词形式: 动词原形 1.am;is ;are 2.have,has 3.第三人称单数形式-(e)s
肯定句:I watch television every day.
否定句:I don’t watch television every day.
疑问句:Do you watch television every day.
We were all surprised when he made it clear that he ___ office soon.
A.leaves B.would leave C.left D.had left
用法:过去某一时刻或某一段时间内正在发生 的动作
常用时间状语:at this time yesterday,at that time, at ten o’clock yesterday或when引导的从句
3.某些动词的一般现在时表示说话时正在 存在的一种情况。
I have only a dollar right now. He needs a pen right now.
注:这些动词不能用于进行时。
用法:过去时间发生的或过去经常性的动作
常用时间状语: yesterday, last night, two days ago, in 2000, at that time, before ,when 等引导的含 过去时的句子。
3、 表示“打算去……,要……”时,可用be going to do。 例:This is just what I am going to say.(这正是我想说 的。)
4、 表示“即将、正要”时,可用be about to do。强调近期 内或马上要做的事。 例:Don't worry, I am about to make a close examination on you.(别担心,我马上就给你做一次仔细的检查。)
e) 用于条件从句“如果……想,设想”(接近if ……want to,或 if ……should) 例:Greater efforts to increase agricultural production must be made if food shortage ____________ avoided. A) is to be B) can be C) will be D) has been
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