祈使句微课PPT.ppt

祈使句,Imperative sentence,Turn left!,Guessing Game,Turn right!,Guessing Game,Please park here！,Guessing Game,Guessing Game,Dont smoke! No smoking!,Guessing Game,Dont play football here!,Guessing Game,Dont park your car here!,Guessing Game,Please dont eat here!,Guessing Game,Dont pick the flowers!,Go upstairs!,Guessing Game,Guessing Game,Go downstairs!,Read and observe(观察),Turn left!,Turn right!,Go upstairs!,Go downstairs!,Please park here!,Dont smoke!,Dont play football here!,Dont park your car!,Please dont eat here!,Dont pick the flowers!,Draw the conclusion (得出结论),祈使句的结构如下： (Please) + do sth. (Please) + dont do sth.,肯定：,否定：,祈使句 : 是表示请求、命令、建议等句子，只用一般现在时。通常说话的对象是第二人称you, you常被省略。,祈使句的句型：,Be quiet. Please have a seat. David, pay attention.,Dont be afraid. Please do not make a noise. Alan, dont be late.,1.动原 2. Please+动原 3. 人名，+动原,肯定,否定,在动词原型前面加dont否定,Lets do exercise.,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. A. Am B. / C. Be D. Was,Exercises:,3. _ let anyone open the door. A. Dont B. Will C. Not D. No 4. Dont be late again. Sorry, _. A. I may B. I must C. I will D. I wont 5. Call me when you get home. OK, _. A. I must B. I can C. I will D. I may,Exercises:,祈使句,祈使句,无主语, 只用动词就可以. 表示请求或命令, 加上please表客气。 如果变成否定句， Dont开头是规律。 肯定回答I will, 否定回答 I wont.,in class,Can you talk about the rules with Imperative sentences?,in class,1. Be quiet. 2. Plea