Module 5 Safety Unit 9 Be careful 语法讲解（无答案）

Grammar
祈使句
知识点讲解 1：祈使句的定义
例句：
① Close the door, please .② Stand up, please. ③ Come on, baby.
★★★我是小小总结家： (1) 定义：祈使句用来表示命令、请求或指示。 (2) 主语省略，用行为动词__________开头。
例 1.
判断下列句子是否为祈使句，是的写“T”，否则写“F”。
(1) Sit down, please. ( T )
(2) Swimming is my hobby. ( F )
(3) Open the window, please. ( T )
(4) Amy likes playing the piano. ( F )
我爱展示
1. Please __________, class begin.
A. sitting down B. to sit down C. sit down
2. [单选题]
Please __________ me some money.
A. lend B. lending C. to lend
知识点讲解 2： 祈使句的肯定和否定结构
例句
① Close the door, please. ② Stand up, please. ③ Do keep the school building clean.
④ Do be careful. ⑤ Don’t cut the vegetables so quickly. ⑥ Don’t walk there.
★★★我是小小总结家： (1) 肯定祈使句用_______________开头。 (2) 肯定祈使句中，在动词前面加__________表示强调，加重语气，可理解为“一定要…” (3) 否定祈使句句型结构为：Don’t+_______________。
例 1.
看图及提示词写句子。（要求包含祈使句）
例 2. __________ a rest if you are tired.
A. Have B. Having C. To have
例 3. __________ the classroom clean.
A. Keep B. To keep C. Keeping
我爱展示
一、 根据句式，选择Do或Don’t填空。
(1) __________ keep the classroom clean.
(2) __________ drink clean water.
(3) __________ touch the hot water.
(4) __________ touch the fan. It’s dangerous.
(5) __________ play in the street.
(6) __________ walk slowly on the road.
(7) __________ be late for school.
(8) __________ eat in the classroom.
(9) __________ listen to the teacher carefully.
(10) __________ finish your homework on time.
二、单项选择。
( ) 1.Billy often helps his mother the ducks.
A. feeds B. feeding C. feed D. fed
( ) 2.The floor is wet. there.
A. Don’t walks B. Don’t walk C. Walk D. walks
( ) 3.You must be when you use a sharp knife.
A. excited B. beautiful C. careful D. dangerous
( ) 4.You may get if you drink dirty water.
A. hurt B. tired C. sick D. hungry
( ) 5.Let me you.
A. helps B. help C. helping D、to help
( ) 6.Don’t the tall tree. You may fall down.
A. climb B. plant C. hurt D. cut
三、翻译题。
1、当你用锐利的刀时，你必须要小心。
______________________________________________
2、请小心，要不你会可能会跌到。
______________________________________________
3、现在该做作业了。
______________________________________________
4、玛丽经常帮助她妈妈做家务。
______________________________________________
5、如果喝不干净的水，你会生病的。
______________________________________________
More practice
1. It’s time __________(to have,have,to having) dinner.
2. It’s six o’clock now, It’s time __________(to,for,of) get up.
3. Can you __________(to play,play,to playing) a game with me now
4. Let me help her _______________ (dry) the floor.
5. Mary, the knife is sharp. You should ______________ (be) careful.
6. ______________ (not, let) the baby cry.
7. Let’s _______________ (not, say) anything about it.
8. It’s an important meeting. _______________ (not, be) late.
9. It’s time to go to school.(改为同义句) It’s time __________ _________.
Let him go.(改为否定句)
Let him _________ __________.
_________ _________ him go.
11. You must not look out of the window. （改为祈使句）
__________ look out of the window.
12. Listen to music, please.（改为否定句）
__________ listen to music, please.
13. 选词填空。
should shouldn’t sick Don’t dangerous good touch well safety knife
As a pupil, you should remember that __________ first. So, there are some things you should do and some things you shouldn’t do. For example,you __________ drink dirty water,because it can make you very __________. You __________ keep the school buildings clean,it is __________ for you. Don’t go near the machine. It’s __________. Don’t use the sharp __________, you may get hurt. __________ let people enter your house when your parents are not at home. Don’t __________ the very hot water. Make sure everything on your bike is working __________. Don’t forget, Safety First!