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1、Grammar,Unit 4 A good read,hand hand in and so on review return on time renew,vi. 交；递，给 上交，递交 等等 n. 评论 vt. 归还 准时 vt. 续借；更新；重新开始,Words and phrases review,To learn to use question words + to-infinitives To learn to use must and have to,Objectives,Look at the following sentences.,1. Some dogs just dont
2、 know how to have fun. (七年级上册 U4) 2. Im thinking about what to wear. (七年级上册 U8) 3. I was just wondering how to spend the morning (新概念2 L68) 4. I must go to the greengrocers. (新概念1 L79),5. He has a bad cold, Mr. Williams, so he must stay in bed for a week. (新概念1 L61) 6. Eddie, I think we have to go u
3、p again. (七年级下册 U4) 7. We dont have to feed her much. (七年级下册 U8) 8. Do you have to water it now? (新概念1 L125),9. Have you decided what to do with these books, Hobo? (P48) 10. I have to use them to reach the box on the fridge. (P48) 11. I did not know what to say either. (P51) 12. “I must run away fro
4、m them,” I thought, but I did not know how to get away. (P51),I dont know what _ next. A. will do B. doing C. do D. to do Do we have to finish our homework this afternoon? Yes, you _. A. must B. can C. may D. need,疑问词包括疑问代词who, what, which及疑问副词when, how, where等。常和“疑问词 + 动词不定式”结构连用的动词和动词短语有：tell, sho
5、w, think, learn, know, wonder, decide, remember, forget, understand, see, hear, ask, advise, explain, find out等。,Using question words + to-infinitives,1. V + “疑问词 + to do ” 结构作动词的宾语。 2. V +n.+ “疑问词 + to do ” 3. Be adj.(sure/clear) +“疑问词 + to do ” 4.V+ “疑问词+n. + to do ” 5. V + “疑问词 + to do +n./prep.”
6、 注 :why to do,那位年轻女子不知道怎么办。 The young woman doesnt know what to do. 我不知道说什么。 I dont know what to say. 我们必须弄懂如何使用这机器。 We must know how to use the machine. 我们想要学习如何写剧本。 We want to learn how to write plays.,1. V + “疑问词 + to do ” 结构作动词的宾语,The teacher told the students how to do the experiment. 老师告诉学生如何做
7、实验。 Can you show me how to make a paper boat? 你能给我演示怎样做一只纸船吗？,有些动词，如advise, ask, show, teach, tell等，其后可以接双宾语。,2. V +n.+ “疑问词 + to do ”,3. Be adj.(sure/clear) +“疑问词 + to do ”,在“疑问词 + 动词不定式”结构前，有时也可以是如sure, clear等的形容词。 I am not sure which way to take. 我不确定走哪条路。,4.V+ “疑问词+n. + to do ”,有些疑问词，如what, whic
8、h, whose, how many, how much等，其后可以先接一个名词，再接动词不定式。 I dont know which topic to choose. 我不知道选哪个题目。,“疑问词 + 动词不定式”结构在句中还 可以作主语和表语。 How to use the machine is a question. （作主语） The question is when to go there. （作表语）,5. V + “疑问词 + to do +n./prep.”,“疑问词 + 动词不定式”作宾语时，相当于一个由该疑问词引导的宾语从句。 Excuse me. Can you tel
9、l me how to get to the bookshop? = Excuse me. Can you tell me how I can get to the bookshop?,注意： 所有疑问词中，只有why不可以与动词不定式连用。,Time for reflection,不定式可以和疑问代词who, what, which及疑问副词when, how, where等连用，构成不定式短语，在句子中作主语、宾语、表语等。 must表示主观的义务和必要，意思是“必须，得，要”，否定形式是must not; must还可以表示肯定推测，意思是“一定”。 have to表示一种客观的需要，意
10、思是“不得不”，否定形式是do not have to。,1. Im going on a field trip but I havent decided _. (2007河南) A. what to do B. to do what C. where to go D. to go where 2. Excuse me. Would you please tell me _ buy a digital camera? (2007安徽) A. what to B. where to C. what I can D. where can I,I. 单项选择。,3. This physics pro
11、blem is too difficult. Can you show me _, Wang Lin? Sure. (2008陕西) A. what to work it out B. what to work out it C. how to work it out D. how to work out it,4. We need a new leader for our Helping Hands Club, but I dont know _. Why not Mary? She is always willing to help others. (2011江苏南通) A. what t
12、o choose B. how to choose C. when to choose D. who to choose,5. The math problem is so hard. I really dont know _. (2012甘肃鸡西) A. how to do it B. how to do C. what to do it 6. Excuse me. Could you tell me _ get to the nearest post office? Sorry, I am new here. (2013山东威海) A. how can I B. how I could C
13、. how to D. what I can,7. Excuse me. Could you please tell me _ my car? Sure. Park it right here. Ill help you. (2013山东青岛) A. how to stop B. where to park C. where to stop D. when to park 8. _ I swim here? Im sorry. Children _ swim alone here. (2012广东) A. Must; cant B. May; must C. Can; mustnt D. Ca
14、nt; can,When I go into the clothes shop, I always cant decide _ one to buy. 2. My grandfather doesnt know _ to use a computer. 3. - Will you please show me _ to drive a car? - Yes, of course. Now let me tell you _ to do first. 4. I will tell Lucy _ and _ to meet.,which,how,how,what,when,where,II. 选用
15、how, which, what, when, where填空。,Andy doesnt know _.,what to wear,III. 看图完成句子。,同意句转换: 1.Gulliver didnt know where he could find other people. 2.Gulliver wondered who he could ask for help. 3.Gulliver didnt know how he could break the ropes. 4.Gulliver found out what he could do with the tiny people. 5.Gulliver decided when he should leave Liliput.,Millie cant decide _.,which book to buy,They dont know _ to the station.,how to go,I dont know how _ from a library.,to borrow books,IV. 翻译下列句子。,1. Have you decided
