高中英语外研版必修四教学案MODULE2SECTION3.docx

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1、Section HIGrammar祈使句语法原句感知Don*t bring your cellphone to school.Never forget each of us is the master of the earth.Turn on the car radio.Write to me as soon as possible, will you?Lets take the underground, shall we?Let us take care of the house while you are away, will you?You, girls, clean the desks

2、; you, boys, sweep the floor.Dont stay outside at night, will you?Do tell me when to buy the tickets for the concert.自主探究1 .句为否认祈使句，句为确定祈使 句。确定祈使句以动词原形开头,否认祈使 句 以 dont或 never# 头。2 .由句可知，lets的祈使句的反意疑问 句用shall we, let us引导的祈使句的反意疑问 句 用 will youo3 .由句可知祈使句的反意疑问句通常 是 will youo4 .句中，在祈使句前可加do或you对 句子表示强调

3、，以加强句子的语气。语汰用析语法点一定义祈使句是用来提出命令、恳求、建议等的句子。一般不消失主语，谓语动词用原形，句 末用句号或感慨号。Be kind to our sisters.对姊妹要和蔼。Keep quiet, please.请宁静。Be careful!留神！Keep off the grass!勿踏草坪！语法点二表现形式1 .确定式：以动词原形开头Follow the rules of the road.遵守交通规那么。Be sure to get here before nine.肯定要九点钟以前到这里。2 .否认式：祈使句的否认式一般是在谓语动词前加do not或don匕 有时

4、也用never；假设祈使句有主语，否认词don*t或never要置于主语之前。Dont be late tomorrow.明天不要迟到。Never put off what you should do till tomorrow.今日事今日毕。Dont you believe it.决不要信任它。3.let祈使句Let me try.让我试试吧。Let Robert take charge of the marketing department.让罗伯特负责市场部。Let him try and he will expose his inability to work on his own.让

5、他试试，他就会明白一个人无法工作。4. No+名词/动名词No smoking!禁止吸烟！No photos in the room.该房间不许拍照！名师点津国的否认句有两种形式。假如宾语是第三人称用“Dont let；假如宾 语是第一人称，那么用Letnot。如：Lefs not waste time.咱们别铺张时间了。Dont let him go.别让他走。(2)祈使句的主语通常为you, 一般不消失。但假设要强调主语，或表示急躁、厌烦、不 快乐、生气等感情颜色，或表示向某人恳求或发出命令，祈使句中可带主语。You mind your own business!你不要多管闲事！John,

6、 you open the door.约翰，你来开门。(3)对祈使句的确定形式表示强调时，在句首加dooDo e earlier tomorrow.明天务必早点来。集中演练1I麓斤使句改写下面的句子Youd better not e late again.Dont e late again.You must be careful in the ing examination.Be careful in the ing examination.(3)Why dont you choose to work on foot at rush hours?Why not choose to work o

7、n foot at rush hours?Would you like to wait a moment?Please wait a moment.Will you please not play with my pencil?Dont play with my pencil, please.12 .翻译句子假如你困了就上床睡吧。If you feel sleepy, go to bed.非请莫入。Do not e in unless asked.你带她去花园。You lead he】 to the garden.下雨了，雨停前我们都不要出去了。Its raining now. Lets no

8、t go out until after the rain.肯定要来和我们一起用餐。Do e and have dinner with us.语法点三祈使句后接的附加问句1 .祈使句为确定句，其反意疑问句用will you/wont you。Turn down the TV, will/won*t you?把电视声音调小一些，好吗？2 .祈使句为否认句，其反意疑问句用will you。Dont smoke in the meeting room, will you?不要在会议室抽烟，好吗？2.1 et开头的祈使句构成反意疑问句时，除Let*开头的用shall we外，其他的均用will you

9、oLets take a walk after supper, shall we?我们晚饭后散漫步?，好吗?Let the boy go first, will you?让那个男孩先走，可以吗？语法点四“祈使句+and/or +陈述句”句型在此句型中，祈使句表示条件，陈述句表示结果。Given one more hour, and Hl get the work finished.再给我一个小时，我将能完成工作。Dont move, or Fil fire.别动，否那么我开枪了。集中演练221 .句型转换If you study hard, youll make great progress.

10、-Studyhard, and youll make great progress.f Studyinghard, youll make great progress.If you dont hurry up, youll be late.-Hurryup, or youll be late.Give him some food or he will starve to death.-Ifyoudon,t give him some food, he will starve to death.2 2 .完成以下反意疑问句Dont tell anybody about it, will you?

11、Lets go out for a walk, shall we?Let us go and get some food, will you?Have a cup of tea, will/wont you?Do be careful, will you?语法巩固/做真题锁定考查方向做典题 提升语法水平铤接龙考单句语法填空1. . （2014北京高考）Observe （observe） carefully if any change occurs when doing experiments in the lab.解析：句意：在试验室里做试验时，肯定要认真观看有无变化发生。句中if引导宾语 从

12、句，设空处为主句动词，且表示祈使语气，故用动词原形，构成祈使句。2. （2014天津高考）Give me a chance, and Ill give you a wonderful surprise.解析：“祈使句+and+陈述句结构中，and为并列连词，表顺承关系，相当于Ifyou give me a chance, Fil give you a wonderful surprise. 。3. .（2014湖南高考）Make （make） what youre doing today important, because you*re trading a day of your life

13、for it.解析：依据because一词可知其前是一个句子，所填词为谓语，由选项可知没有主语， 故为祈使句，应用动词原形。4. （2014大纲卷）Call （call） me tomorrow and Ill let you know the lab result.解析：句意：明天瓦我打，我会让你知道试验结果的。分析句子结构可知，此处是“祈使句+and+简洁句这一固定句式结构，故用动词原形。5. （2013湖南高考）Every day read （read） a proverb aloud several times until you have it memorized.解析：句意：每天大

14、声朗读一那么谚语几遍直到你记住。这里在考查句型“祈使句+连 词（如and, or .）+简洁句”的用法。6. （2013四川高考）Read this story, and you will realize that not everything can be bought with money.解析：句意：（假如你）读这个故事，你将会意识到并非一切东西都能用金钱买到。分析 句子结构可知，此题为“祈使句+and/or+陈述句结构，本句中前面的祈使句表示此条件, 后面的陈述句表示条件下的结果，又由句意可知应用连词ando针对演秣I .单句语法填空1. Never speak (speak) wit

15、h your mouth full of food.2. Don*t talk and read (read) a book.3. Look (look) out! A car is ing.4. Lets sweep (sweep) the floor.5. . Follow your doctors advice, or your cough will get (get) worse.n.单句改错1. Let us try again, shall we? shall wewill you2. Dont say that again and I will hit you.and/or3.

16、To try some of the juice perhaps youll like 3 To try f Try4. Youd better pay not a visit to him soon.pay notf not pay5. Dont touch papers on my desk, can you? canf willin.句型转换1. Why shouldnt you read aloud?f Whynot read aloud?2. Study hard, or youll fail the ing exam.f Ifyoudontstudyhard, youll fail

17、 the ing exam.3. Lets try to find a solution to this problem.(变为反意疑问句)f Lets try to find a solution to this problem, shallwe?4. If you turn on the television and you will often see advertisements showing happy families.f Turnonthetelevision, and you will often see advertisements showing happy famili

18、es.5. . I wish you have enough hope to make you happy!f May you have enough hope to make you happy!W .短文改错Hello, everyone,I will tell you some informations about our schoofs opening ceremony. It was held on September 10. It was sunny. More than 6,000 teachers and students took part it. There were ve

19、ry many people that we had to walk slow. It was a two-hour ceremony. The opening ceremony was really excited to us, because they met a number of new students and teachers. With our teachers* help, we made a great progress in each subject, so we sang and dance happily. Although we were very tired, but we were excited. Im looking forward to receive your reply.答案： 第一句：informationsinformation第四句：took part后加in第五句：veryf so; slow-slowly第七句：excitedexciting; theywe第八句： 去掉 a; dance-danced第九句:第十句:去掉butreceive-* receiving