牛津译林版英语8BUnit4Grammar课件(共41张PPT)

1、I didnt know where .I didnt know what before going.I wondered who .I wondered when .I couldt decide which first.I couldt decide how .to goto prepareto come with meto set offto take withto choose the routeV+疑问词疑问词+to doHave a try:Millie has decided_. (该读什么该读什么) Daniel did not say _about this book.（该和

2、谁交谈）（该和谁交谈）Simon forgot _his friends. （该什么时候见（该什么时候见）Kitty cannot decide _ first.（该选哪一个）（该选哪一个）Sandy is wondering _for help.（该去哪求助）（该去哪求助）Amy does not know _the report. （该如何写）（该如何写）what to readwho to talk towhen to meetwhich to choosewhere to askhow to writeLets pay attention to who takes action.疑问词

3、疑问词+to do 构成简单句，这个构成简单句，这个简单句的主语简单句的主语(subject)与与主句的主语主句的主语一致一致 I read a book Gullivers Travels during my trip. I want to introduce it. The book is about Gullivers trips in some strange countries. A lot of amazing things happened to him. And he also had a lot of difficulty. Its exciting and interest

4、ing.He didnt know where he could find other people. where to find other peopleHe didnt know how he could break the ropes. how to break the ropesHe wondered who he could ask for help. who to ask for helpAt last, he found out what he could do with the tiny men. what to do with the tiny menAnd he decid

5、ed when he should leave Lilliput. when to leave Lilliput All question words can be used in this way, except “why” Suzy will explain why to recommend this book. Suzy will explain why she recommends this book.foodie guider Foodie guider is a useful book. Its all about what to eat. There is also a map

6、at the end of the book. It tells you where to find nice food . It also shows you which bus to take. V V+ + 宾语宾语+ + 疑问词疑问词+ + to do to do V + 宾语宾语+ 疑问词疑问词+ to doadvise, ask, decide, discuss find out, forget, know, learn remember, say, show, teach think, understand, wonder1.Mr Wu _as after-school acti

7、vities. （建议我们该选哪个）（建议我们该选哪个）2.The students _ their work.（问他们的老师何时上交）（问他们的老师何时上交）3.Millie _.（向我们展示下（向我们展示下一步如何做）一步如何做）4.Daniel _a computer to draw.（教他自己如何使用）（教他自己如何使用）5.Dont forget to _you.（告诉你妈妈该在哪见）（告诉你妈妈该在哪见）advised us which to chooseasked their teacher when to hand inshowed us what to do nexttaug

8、ht himself how to use tell your mum where to meetHave a try:Foodie guider is a useful book. Its all about what to eat. There is also a map at the end of the book. It tells you where to find nice food . It also shows you which bus to take. V+疑问词疑问词+n+ to dowhatwhichwhosehow many/how muchEg:我们还没决定住哪个房

9、间。我们还没决定住哪个房间。We havent decided which room to live in.他们在讨论暑假去多少个地方游玩。他们在讨论暑假去多少个地方游玩。They are discussing how many places to visit in the summer holiday.PS: During the trip,Im not sure how much money to take. But I think the more, the better.adjadj+ + 疑问词疑问词+ + to doto do在在“疑问词疑问词 + 动词不定式动词不定式”结构前，结

10、构前，有时也可以是如有时也可以是如sure, clear等的形容词。等的形容词。Eg:1.我不确定怎样照顾电子狗。我不确定怎样照顾电子狗。 2. 你清楚下一步该做什么吗？你清楚下一步该做什么吗？ Im not sure how to look after an e-dog.Are you clear what to do next?Lets work out the rules1. 动词动词+疑问词疑问词+to do2. 动词动词+宾语宾语+疑问词疑问词+to do3. 动词动词+疑问词疑问词+名词名词+ to do4. 形容词形容词+ 疑问词疑问词+ to do Andy doesnt kn

11、ow _.(穿什么穿什么)what to wear看图完成句子。看图完成句子。Millie cant decide _.(买哪本书买哪本书)which book to buyThey dont know _ to the station.(如何去如何去)how to goI dont know how _ from a library.(借书借书)to borrow books Amy: Mr Wu has recommended so many interesting books. Have you decided_ first, Daniel?Daniel: Yes. I want to

12、read Black Beauty first. But I dont know _the book first.Amy: You can try our school library or Sunshine Library. Oh, did you know Peter is reading Around the World in Eighty Days? He wants to find out _ around the world in such a short time. which to readwhere to findtravelhow tohowwhatwhenwhere wh

13、ichwhoask for find hand in readtravel write aboutP55Daniel: Wow, thats amazing! By the way, can you tell me _our book report?Amy: Before next Friday. Im still not sure _ in the report.Daniel: You can write anything about your bookwhat the book is about, what you think of it and so on. You should rea

14、d some reviews about the book before writing.Amy: Thank you. Anyway, I know _Help with writing. Mr Wu is always there to help. whowhat whenask for hand in write aboutwhen to hand inwhat towrite aboutwho to ask forWinter holiday is cold and snowy. So I have to drive slowly and carefully during my tri

15、p. Althouhg the traffic is busy,I must obey traffic rules during my trip.have to situation the situation makes something necessary.must feelingthe speaker feels that something is necessary.Winter holiday is cold and snowy. So I have to drive slowly and carefully during my trip. the speaker feels tha

16、t something is necessary.the situation makes something necessaryABAlthouhg the traffic is busy,I must obey traffic rules during my trip.I did not have to hurry to drive the car.And if I run the red light, the policeman may sayYou mustnt do it.something is not allowed(允许允许) it is not necessary to do

17、somethingAB不必不必禁止禁止我必须努力学习功课。我必须努力学习功课。I must work hard at my lessons. 我得在家照看妈妈，因为她病了。我得在家照看妈妈，因为她病了。I have to look after mother at home. Because she is ill. 我们不必等他我们不必等他。他已经走了。他已经走了。We dont have to wait for him. He has left.这里禁止游泳。这里禁止游泳。You mustnt swim here. More examplesmust 表示表示“有义务有义务”，“必须必须”做某

18、事，做某事，强调说话人的主观看法，强调说话人的主观看法，主要用于肯定句主要用于肯定句和疑问句，和疑问句，“必须，得，要必须，得，要”。e.g. 你今天必须完成家庭作业。你今天必须完成家庭作业。 You must finish your homework today. must 的否定形式的否定形式mustnt, 表示禁止表示禁止: “不准不准”。e.g. 课堂上你们不许发出噪音。课堂上你们不许发出噪音。 You mustnt make any noise in class.Must 引导的一般疑问句的回答引导的一般疑问句的回答：eg. Must I go now?肯定回答：Yes, you m

19、ust.否定回答：No, you neednt No, you dont need to No, you dont have to (不必)have to 表示一种客观的需要，表示一种客观的需要，“不得不不得不”。有人称和数的变化有人称和数的变化。e.g. 天快黑了，他现在得回家了。天快黑了，他现在得回家了。 It is getting dark. He has to go home now. have to 的否定形式的否定形式do not have to, 相当于相当于need not/ do not need to.e.g. 他们目前没有必要买电脑。他们目前没有必要买电脑。 They d

20、o not have to buy a computer at the moment.Can you follow the library rules(准则准则) ?Complete the rules of Reading Week with Complete the rules of Reading Week with mustmust, , must notmust not, , have tohave to or or dont have todont have to. You (1) _ keep quiet when reading.You (2) _ keep the books

21、 clean and tidy.You (3) _ draw or write on the books .mustmustmustntP56You (4) _ eat or drink when reading. It will make books dirty.You (5) _ return the books on time. If you want to keep them longer, you (6) _ renew them.You (7) _ bring your student card every time you go to the library, but remem

22、ber to bring your library card. mustntmusthave todo not have to注意注意: must 还可以表示肯定猜测，意思是还可以表示肯定猜测，意思是 “一定一定” 。否定的猜测是。否定的猜测是cant.e.g. 走了那么远的路，你一定饿了吧。走了那么远的路，你一定饿了吧。 You must be hungry after walking such a long way. eg. 那肯定不是那肯定不是Lucy，她已经去了美国。，她已经去了美国。 That cant be Lucy. She has gone to the USA.1. -Mus

23、t we finish all the exercises today? -Yes, you _. / No, you _.2. You _ throw rubbish on the ground.3. Its going to rain. You _ water flowers.4. Simons name is on the cover of the book. It _ be his. It _ be yours.mustneedntmustntdont have tomustcant1. Someone has put away(收拾，整理收拾，整理) the books. You_d

24、o it. A. mustnt B. neednt C. shouldnt D. cant2. Its the library. So you _ know shouting is not allowed here. A. can B. must C. need D. may3. Can we discuss here? No, you _. You will disturb other people. A. mustnt B. wont C. dont D. neednt4. -Must I return the book today?-No, you _. A. dont B. cant C. mustnt D. neednt1. When I go into the clothes shop, I always cant decide _ one to buy.2. My grandfather doesnt know _ to