外研社小学英语一起小学四年级下语法总结及练习题

外研社英语一起四年级上语法总结及练习题

祈使句

表达说话人对对方的叮嘱、劝告、请求或命令等,往往有表示请求、命令、希望、禁止、劝告等意思.

祈使句一般没有主语,实际上是省略了主语“You”.句末用感叹号或句号,用降调朗读.肯定结构都以动词原形开头.

祈使句的肯定句式有三种形式,即

1)Do型（以行为动词原形开头）,例如：Sit down 坐下! Stand up 起立!

2)Be型（以be开头）,例如：Be quiet！安静!

3)Let型（以let开头）,例如：Let me help you.

祈使句的否定结构是以“Don’t＋动词原形”开头.例如：

Don’t go there,please．请别去那儿.

Don’t be late．不要迟到

用括号内所给动词的适当形式填空。

1. __________ (not, be) late.

2. ____________ (dust) the dressing table.

3. ____________ (not, speak) with your mouth full of food.

4. ____________ (not, talk) and ____________ (read) a book.

5. ____________ (not, drop) the nice vase, Sam.

6. ____________ (look) out! A car is coming.

7. ____________ (give) us ten years and just see what our country will be like.

8. ____________ (not, let) the baby cry.

9. ____________ (open) the window and ____________ (shut) the door.

10. Let’s ____________ (sweep) the floor.

根据要求改写句子

1. Will you please read it again more slowly? （改为祈使句）

__________ __________ again more slowly, please.

2. Please sit next to Nancy. （改为否定句）

__________ __________ next to Nancy.

3. Come to my house tomorrow. （改为否定句）

__________ come to my house tomorrow.

4. Wear the glasses! （改为否定句）

___________ wear the glasses!

5. Don’t wash your hands! (改成肯定句)

___________ your hands!

一般过去时

时间状语：

1.yesterday，morning(afternoon,evening)等

2.由“last+一时间名词”构成的短语：last night,last year(winter,month,week)等

3.由“时间段+ago”构成的短语：a moment ago,a short time ago,an hour ago等

4.其它：just now等

Was，were的一般过去时构成：

肯定句式：主语+be(was,were)+其它.

否定句式：主语+be(was,were)+not+其它.

一般疑问句：Be(was,were)+主语+其它？

肯定回答: Yes, 主语+ be(was,were)

否定回答：No, 主语+be(was,were)+not.

含有实义动词（行为动词）的一般过去时的主结构：

构成：

肯定句：主语+动词的过去时+其它。

否定句：主语+did+not+动词原形+其它。did not缩写为didn’t

一般疑问句：Did+主语+动词原形+其它？

特殊疑问句：特殊疑问词+did+主语+动词原形+其它?

动词的适当形式填空

1. I________up at half past six this morning.(get)

2. My mother____________a lot of fruit yesterday afternoon.(buy)

3. They_________________a meeting yesterday.(not have)

4. The twins_________thirteen two years ago.(be)

5. I_________(have)an exciting party last weekend.

6. They all_________(go)to the mountains yesterday morning.

7. She_________ (not visit)her aunt last weekend.She________(stay)at home.

8. He __________(work) in that bank four years ago.

9. I __________(see) him yesterday.

10. The boy __________(have) a bad cold yesterday.

11. He __________(tell) a story to his daughter yesterday.

12. I __________(buy) a coat just now..

用括号里动词的适当形式填空

Last year Mr. Smith ___________ (go ) to China and Japan. He ___________ (have) a wonderful time. He ___________ (do) a lot of different things and ___________ (talk) to a great number of different people. He ___________ (eat) Chinese and Japanese food and ___________ (visit) a lot of interesting places. When he ___________ (go) back to England, he ___________ (be) very tired.