英语祈使句PPT课件

不要洗你的手 请不要开门。
不要左转 不要安静 不要坐下
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否定祈使句的结构如下： Don't do sth.
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祈使句
定义
表示请求、给予命令或指示的句子 叫祈使句。祈使句通常省略主语 “you”，动词一律用动词原形。
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●肯定结构:
• 1. Do型(即:动词原形(+宾语)+其它成 分)。如:Please have a seat here. 请这边坐。
Wash your hands. Open the door, please. Let’s go to school. Turn left. Be quiet, please. (Please be quiet.） Sit down please.
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去洗你的手 请开门。
我们去电影院吧
左转
him not go. 别让他走。
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3. 有些可用no开头,用来表示禁止性的祈使句。
如:No smoking! 禁止吸烟!No fishing! 禁止钓鱼!
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• 祈使句，无主语，只要动词就可以； • 表示请求或命令，加上please表客气； • 如果变成否定句，Don’t开头是旋律； • NO talking ！是警示，祈使用法要
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第二关Let’s Say
➢ You can’t sleep on the desk.
Don’t _s_l_e_e_p__ on the _d_e_s_k____.
➢ You can’t climb trees in the park.
Don’t _c_li_m__b__tr_e_e_s__i_n_t_h_e__p_a_r_k_.
构成。如:Don't forget me! 不要忘记我!
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Don't be late for school! 上学不要迟到!
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2. Let型的否定式有两种:“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”。如:Don't let him go. / Let
• 2. Be型(即:Be + 表语(名词或形容词)+ 其它成分)。如:Be a good boy! 要做一个好 孩子!
• 3. Let型(即:Let + 宾语 + 动词原形 + 其 它成分)。如:Let me help you. 让我来帮你。
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• ●否定结构:
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1. Do型和Be型的否定式都是在句首加don't
请安静
请坐下
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肯定祈使句的结构如下： Do (动词原形) sth,please.
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Don't wash your hands. Don't open the door,
please. Don't turn left. Don't be quiet, please. (Please be quiet.） Don't sit down please.
➢ You can’t sit on the grass.
_D__o_n_’_t _s_i_t _o_n__t_h_e__g_r_a_s_s_______.
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第三关 Let’s Write
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第四关 Play a game: Look and guess
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No smoking
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Don't touch
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Guessing Game
Turn right!
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Guessing Game
Don’t smoke!
No smoking!
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Guessing Game
Don’t play football!
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Guessing Game
Don’t park your car!
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Guessing Game
Don’t eat!
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Guessing Game
Don’t pick the flowers!
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Guessing Game
Go upstairs!
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Guessing Game
Go downstairs!
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第一关：Let’s Read
➢ Don’t throw things at the monkeys. ➢ Don’t feed the animals. ➢ Don’t walk on the grass. ➢ Don’t take photographs here. ➢ Don’t leave litter.
A. Am B. / C. Be D. Was
3. Let's ____ our time.
A. not waste B. no wasting C. not to waste D. no waste
4. —____ higher, and you will see the house.
—OK.
A. If you stand
牢记！
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轻松小练习
1.咱们一起玩吧
1. Let's play together!
2.
2.请不要迟到.
3. 2.Don't be late.
3.回答这个问题.
4. 3.Answer this question.
4.打开窗户
5. 4. Open the window
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源自文库uessing Game
Turn left!
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Don't eat./Don't drink.
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No parking
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Be quiet
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Let’s do exercise.
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1. Jim, _____ me a hand.
A. gives B. is giving C. will give D. give
2. ____ careful, Jenny! There is a tree in front of you.
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Let’s do more exercises.
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1. __B___ forget to write to me. A. Don't B. Please
B. To stand
C. When you stand D. Stand
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5. Please ___ do it. A. he B. let him C. let he
6. _____ let anyone open the door. A. Don't B. Will C. Not
D. him D. No