倒装句祈使句一般过去时

初中英语倒装句、祈使句、一般过去时精讲精练

倒装句

英语句子的自然语序是主语在前,谓语在后。把谓语放在主语之前,就叫做倒装。全部谓语放在主语之前,叫做全部倒装;只把部分谓语即be动词、助动词或情态动词放在主语之前,叫做部分倒装。

1. 存在句(there be/ live/ stand/ lie/ seem等)需要全部倒装。如:

There once lived an old hunter in the house.

这所房子里曾住过一位老猎人。

There seems to be many listeners.

似乎有很多听众。

2. 副词here, there, now, then等置于句首(经常与go, come等动词连用),全句需要全部倒装。如:

Here comes the bus. 公共汽车来了。

Now comes your turn. 现在轮到你了。

注意:如果主语是人称代词则不用倒装。如:

Here they are. 他们在这儿。

3. 介词短语作为地点状语置于句首,后面如果有lie, live, sit, stand, come, go等动词,全句需要全部倒装。如:

Into the hall came three women.

大厅里走进来三位妇女。

In the east of the school lies a big bookshop.

学校的东边有一个大的书店。

4. 当上文所表达的含义也适用于另一个人或物时,要用so/ neither/ nor+be/ 助词/ 情态动词+主语;此时谓语的时态、语态应与前句谓语的时态、语态相一致。如:

—I have finished my homework.

我已经做完作业了。

—So has he. 他也做完了。

—I h aven’t seen that film. 我没看过那部电影。

—Neither (Nor) have I. 我也没有。

5. not only... but also...连接两个并列句,且not only置于句首时,前句需要部分倒装。如:

Not only did he dislike the way we spoke, but he disliked the way we dressed.

他不但不喜欢我们说话的方式,而且也不喜欢我们着装的方式。

一般过去时的用法:

一、表示过去的动作或状态:

I bought the hat yesterday.这顶帽子是我昨天买的。

He was at school last Monday.

上星期一他在上学。

二、表示过去的习惯动作:

When he was at school, he wrote a diary every day.他上学时,每天写一篇日记。

I used to get up early. 我以前习惯早起。

注:“used to+动词原形”表示过去某一段时间内有规律的习惯。

用于一般过去时的时间状语有:yesterday, the day before yesterday(前天), ago(以前), just now(刚才), last night (week, Sunday, month, year), at that time(moment), then(那时), a few days (weeks, months, years) ago等。

祈使句

一、表示请求或命令的句子叫祈使句。祈使句的主语一般是you(听话人),通常省略,其谓语动词一律用动词原形。句末用感叹号或句号,语调读降调。

二、祈使句的结构形式:

1. 肯定的祈使句。

(1)句中只有不及物动词。如: Come here! 过来! Look! 看! Come in! 进来!

(2)及物动词+宾语。如: Close the door! 关门! Open your books!翻开课本!

(3)系动词+表语。如: Be quiet, please! 请安静! Be careful! 小心!

2. 否定的祈使句。

祈使句否定式的构成是直接在动词原形前加don’t。为了表示礼貌,也可以加上please。如:

Don’t talk in class. 不要在课堂上讲话。

Don’t close the window, please. 请不要关窗户。

3. Let 引导的句子也是一种祈使句,表示建议。

Let me help you. 让我帮你吧。

Let’s go. 咱们走吧!

这种祈使句的否定结构是在let’s后加not。如:

Let’s not go now. 咱们现在先别走。

4. 以no开头的表示禁止性的祈使句。如:

No smoking! 禁止吸烟! No fishing!禁止钓鱼! 一般过去时专练

I. 用所给动词的适当形式填空

1. The children ______(go) to the park every Sunday last year.

2. I ______(do) my homework last night.

3. The teacher ______(ask) us to do the exercises on page 38 just now.

4. Mary ______(be) out when I called her.

5. My brother ______(go) to study in America two years ago.

II. 按要求完成句子。

1. They went shopping last Sunday. (对划线部分提问)

______ ______ they ______ last Sunday?

2. What day is it today? (用yesterday改写句子)

What day ______ ______ yesterday?

3. I left for Paris yesterday morning. (对划线部分提问)

______ ______ ______ ______ for Paris?

4. They were in London last week. (改为一般疑问句,并作肯定回答)

—______ ______ in London last week?

—______, ______ ______.

5. I went out for a walk after supper. (改为一般疑问句,并作否定回答)

—______ ______ ______ out for a walk after supper?

—______, ______ ______.

祈使句专练

III. 把下列句子改为祈使句。

1. You must look after your things!

______ ______ your things, please.

2. Can I have a look at your photo?

______ ______ have a look at your photo.

3. You can’t throw things on the floor.

______ ______ things on the floor.

4. Could you help me take these baskets to my car?

______ ______ take these baskets to my car, please.

5. We go to school together.

______ ______ to school together.

Key: I. 1.went 2. did 3. asked 4. was 5. went II. 1. What did, do 2. was it 3. When did you leave 4. Were they; Yes, they were 5. Did you go; No, I didn’t III. 1. Look after 2. Let me 3. Don’t throw 4. Help me 5. Let’s go