小学祈使句结构

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5. ___B__ careful! A. Be do B. Do be C. Not D. Not do
6. ___A__ let anyone open the door. A. Don't B. Will C. Not D. No
7. ___D__ get off the lorry until it stops. A. Do B. Can’t C. / D. Don’t
Guessing Game
Turn right
Turn left
Don't fish. No fishing.
Don't swim. No swimming.
Choose the correct answer.
1. Jim, __C___ me a hand. A. gives B. is giving C. give D. will give
祈使句结构
否定 结 构
1. Do型和Be型: 句首加don‘t构成。 2. Let型 :“Don‘t + let + 宾语 + 动词原形 + 其它成分”
和“Let + 宾语 + not + 动词原形 + 其它成分”。
Don't be late. 别迟到。 Please don't be noisy. 请不要大声喧哗。 Don't swim in the river. Don't let them play with fire. Let's not say anything about it
2. Let me __C__ on duty today. A. am B. / C. be D. do
3. Let's __A__ our time. A. not waste B. no wasting C. not to waste D. no waste
4. Please __C_ do it. A. he B. he let C. let him D. him
其他结构
表示禁止时，尤其是标语等也可用“No+名词/动名词”来表示。 No smoking!禁止吸烟！ No parking！禁止停车！ No entry！不准入内！ No litter！不准乱扔杂物！
In the classroom
In the library
In the cinema
In the park
Lesson 4
Rules and signs
祈使句定义
祈使句（Imperative Sentence）是用于表达命令、请求、
劝告、警告、禁止等的句子。祈使句最常用于表达命令， 因此在学校文法中也常称为命令句。
ቤተ መጻሕፍቲ ባይዱ
祈使句结构
肯定 结 构 1. Do型: 动词原形(+宾语)+其它成分。 2. Be型 :Be + 表语(名词或形容词)+其它成分。 3. Let型:Let + 宾语 + 动词原形 + 其它成分)。 Please have a seat here. This way, please. = Go this way, please. Be a good boy! Let me help you.