8BUnit4GrammarPPT教学课件

1、 学习目标 1.掌握生词和短语。 2.学会正确使用“特殊疑问词+动词不定式”的结构。 3.学会正确使用must和have to。第1页/共19页 自学指导一 1 复习reading部分课文。 （熟读背诵课文） 2 你能翻译下面的句子吗。 （1）I did not know what to say either。 （2）I did not know how to get away。我也不知道说什么。我不知道如何逃离。第2页/共19页 分组讨论下列各句划线部分的结构和用法。 1.Millie has decided what to read. 2.Daniel did not say who to

2、 talk to about this book. 3.Simon forget when to meet his friends. 4.kitty cannot decide which to choose first. Sandy is wondering where to ask for help. Amy does not know how to write the report. 第3页/共19页结论归纳以上划线部分的结构是：“特殊疑问词+动词不定式” 构成不定式短语。 (why 除外)Suzy will explain why to recommend this book.()Su

3、zy will explain why she recommends this book.()第4页/共19页这些不定式常与下列动词连用作宾语。(know say decide forget learn rememeber show teach think ask understand wonder advise discuss find out )1.Millie showed us what to do next.2.Mr Wu advised us which to choose as after-school activities.3.The students asked their

4、teacher when to hand in their work.第5页/共19页4.Danil taught himself how to use a computer to draw.5.Dont forget to tell your mum where to meet you.6.I want to know who to meet tomorrow. 此外这些不定式短语还可以与像sure和clear这样的形容词连用，做它们的宾语。如， Suzy was not sure who to ask for help. Are you clear when to meet at the

5、gate tomorrow.第6页/共19页检测选出正确的不定式组成合适的句子。1.I dont know what ( f ) a.to use the computer.2.Suzy asked where ( ) b.to make the tea.3.Andy has forgotten when ( ) c.to plant the tree.4.Can you tell me how ( ) d.to come to this school.5.He want to know who( ) e.to talk about his story.6.She taught us how

6、( ) f.to do next. c d a e b第7页/共19页 自学指导二 读下列句子，讨论划线部分的不定式短语与上面所学的不定式有何不同。 1.They are discussing which coulour to paint the walls. 2.You can ask your parents how much money to take with you. 第8页/共19页 结论 以上句子中不定式的结构为 “特殊疑问词+名词+不定式”构成的不定式短语。 后跟名词的疑问词有what,which,whose,how many 和 how much。如， Suzy was no

7、t sure who to ask for help. Are you clear when to meet at the gate tomorrow?第9页/共19页检测 同义句转换 1.Gulliver did not know where he could find other people. Gulliver did not know _ _ _other people. 2 Gulliver wondered who he could ask for help. Gulliver wondered _ _ _ _help. 3 Gulliver did not know how he

8、 could break the ropes. Gulliver did not know_ _ _ the ropes.where to findwho to ask for how to break第10页/共19页 4 Gulliver found out what he could do with the tiny man Gulliver found out_ _ _ with the tiny man. 5 Gulliver decided when he should leave Lillput. Gulliver decided _ _ _Lillput. what to do

9、 when to leave第11页/共19页合并句子 1 what should we write for the report ? Daniel asked the teacher. Daniel asked the teacher what to write for the report. 2 How do I get to the bus stop? The policeman explained this to me _ 3Where can we see the new film? Paul asked us. _ 4when should we see the football

10、match? We need to decide. _ The policeman explained to me how to get to the bus stop.Paul asked us where to see the new film. We need to decide when to see the football match.第12页/共19页 5 Who should we ask to get tickets for the show? Sally found out . _ 6 Which shirt should I wear to the party? I do

11、nt know _ Sally found out who to ask to get tickets for the show. I dont know which shirt to wear to the party.第13页/共19页 自学指导三 朗读翻译下列句子，讨论划线部分的情态动词的用法。 1. I must run away from them Gilliver thought. 2.You must not smoke in the library. 3.I have to use them to reach the box on the fridge. 4.She has t

12、o take her daughter from school in the afternoon. 5.We do not have to say that it is not necessary to do something. 第14页/共19页 结论 1.当说话者感到某事是必要时，要用must。 2.当某事不被允许时，要用must not。 3.当情况使某事成为必要时，要用have to。 4.当做某事是不必要时，要用do not have to。 注意：must没有其它形式，而have to有不同形式（has to， had to，will have to, have/has got

13、to ) must not = mustnt do not have to = dont have to第15页/共19页 选择合适词填空(must,mustnt,have to,dont have to)。 1.You_keep quiet in the library. 2.You_keep the books clean and tidy. 3.You_draw and write in the books. 4.You_eat and drink in the library. 5.You _return the books on the time. If you want to keep them longer,you_renew them. 6.You_bring your student card every time you