课件19张PPT。Are you ready?Go and wash your hands
Be quiet, please. Keep running!Go and wash your hands.
Be quiet,please.
Keep running.
MODULE 2Traffic Jam必修4 Period 3 Grammar
Imperatives祈使句定义:表示命令、请求、建议、劝告、警告或禁止的句子叫祈使句。
特点:祈使句的主语一般为you,通常省略,谓语动词常使用原形,句末用感叹号或句号。学习目标:1. 通过自主学习,了解祈使句的三种肯定形式及其否定形式。
2. 通过合作探究,掌握祈使句的反义疑问句和常考查句式。【自主学习】
【要求】时间:7分钟。
内容:观察任务一和任务二中
的例句,总结祈使句的
肯定形式和否定形式。
方法:独立思考,自主总结。任务一: 祈使句的肯定形式
1)be型
Be careful!
Be quiet, everyone!
2) do型
Come in, please!
Open your books,please.
3) let型
Let’s have a look.
Let me help you.
总结: Be型肯定形式:
Do型肯定形式:
Let型肯定形式:以系动词be开头以行为动词原形开头Let’s/Let sb.+动词原形
任务二: 祈使句的否定形式
1) be型
Don’t be lazy!
Never be late again.
2) do型
Don’t throw the ball like that.
Don’t worry. I'll soon be all right.
Never do it like that.
Don’t anybody say a word.
3) let型有两种否定形式:
①Let him not go there.
Let’s not waste time.
②Don’t let her go there.
Don’t let the water run into the room.
总结: Be型的否定形式:
Do型的否定形式:
Let型的两种否定形式: Don’t/Never+动词原形Don’t/Never+动词原形Let’s/Let sb.+not+动词原形
Don’t+let +宾语+动词原形
思考:
祈使句都是以动词原形开头的吗?No型:No+名词 No+动词ing
【合作探究】
【要求】时间:12分钟。
内容:完成【合作探究】中所设置
的任务。
方法:小组讨论、合作交流。未解
决的部分大胆质疑。【展示讲解】
【要求】1.时间:8分钟。
2.展示方式:实物展台。
3.展示讲解同学举止要大方,语言
要规范简洁,用书面语,要有层
次,声音洪亮。
4.其他同学认真倾听,积极思考,
做好笔记,敢于质疑或补充。归纳总结1.祈使句的三种肯定形式:
否定形式:
2.祈使句的反义疑问句:
①祈使句为肯定句,其反义疑问句用_____________.
②祈使句为否定句,其反义疑问句用___________.
③Let’s开头的祈使句,其反义疑问句用____________.
④Let us开头的祈使句,其反义疑问句用__________.
3.祈使句常考查句式:
1).祈使句+ and/ or + 陈述句。
2).名词词组 + and/or + 陈述句
当堂检测单句语法填空:
1.Read this story,______ you will realize that not everything can be bought with money.
2.Every day______ (read)a proverb aloud several times until you have it memorized.
3.Take the flowers into a warm room, ______they will die quickly.
4.Our English teacher is ill.Let’s go and see him after school,______ we?
5.________(give) us ten years and just see what our country will be like.
andreadorshallGive
Draw signs according to the pictures.Those signs are to be put up in public places, in order to attract attentions.Homework问:你累吗?答:累。问:那为什么不放下?桔子答道:你当我傻啊!放下就会被人吃掉。人生就是这样,如果你感觉累了就放弃,那你就会被淘汰。Keep running and never give up!
Thank you!