一、单项选择。
() 1.You do your homework first.
A. have to
B. have
C. have not to

A

根据句意“你得先做你的家庭作业”，可知这里表示客观上的必须，用have to“不得不；必须”，其否定形式为don't have to，C选项形式错误，B选项意思不符合。

() 2. run in the living room.

A.Don't eat
B.Please not
C.Don't

C

题意为“____在客厅里跑。”根据句意可知，本题表示“不要在客厅里跑”，应使用祈使句的否定形式“Don't + 动词原形”，B选项“Please not”后通常要加“run”的原型才构成正确表达“Please don't run”，A选项“Don't eat”意为“不要吃”，不符合题意。因此选择C选项，构成“Don't run”（不要跑）的否定祈使句结构。

() 3.Lucy, careful! The floor is wet.

A.he
B.be
C.by

B

本题考查祈使句。祈使句以动词原形开头，"be careful"是固定搭配，意为“小心”。A选项“he”是人称代词主格，C选项“by”是介词，均不符合祈使句结构。故答案为B。

二、将下列规则归类。
| A. Don't run in the living room. | B. Don't eat in class! |
| --- | --- |
| C. Keep your classroom clean. | D. Tidy your room. |
| E. Don't be late. | F. Do your homework first. |
1. Family rules:
2. Class rules:

1. A, D, F
2. B, C, E

三、选择合适的句子补全对话。
Mum: Ann, it's time to go to school.
Ann: OK. 1.
Mum: On your desk. 2. It's not safe.
Ann: OK. Where is my bag?
Mum: On your bed. Hurry up. 3.
Ann: I'm ready. Can I take an apple?
Mum: 4.
Ann: 5.
| A. Yes, but don't eat it in class. |
| --- |
| B. OK. |
| C. Don't run in the living room. |
| D. Where is my pencil, Mum? |
| E. Don't be late for class. |

1. D
2. C
3. E
4. A
5. B