高一英语教案 Module 4 unit2 Grammar and usage

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A true friend is the best possession. 真诚的朋友是最宝贵的财富。  

Learning aims: Master the usage of some common modal verbs;  

            Know how to use them correctly;  

            Develop the sense of cooperation.  

Step 1: 读一读:(下划线句中情态动词)  

1.  Now, many of us can speak English quite well, but a few years ago, we couldn’t.  

2.  My brother is able to dive under water for 10 minutes.  

3.  You should respect your parents.  

4.  I have to finish the work before 7 o’clock.  

5.  You must work hard to achieve your life goal.  

6.  Shall we carry the books for you?  

7.  You needn’t do that if you don’t want to.  

8.  The little girl dare not go out alone at night.  

9.  Will he pay for me?  

Step 2: 学一学: 体会下列各情态动词的用法  

一、              Can/ could/ be able to  

1.       He can play basketball very well.    

2.                                             Can I use your pen?                   

3.       Could you give me a piece of paper?       

4Mary can't be in Parisfor I saw her in the town only a few minutes ago            

用法总结:can表示1. 能力2. 请求许可,could语气更加委婉 3. 推测/可能性(只用于否定句和疑问句)   

比较下面两个句子,体会canbe able to用法的不同  

5.   My brother can play table tennis.  

6  My brother is able to dive under water for 10 minutes.  

表示“能够”之意时,  

Can 强调    主语本身具有的一种能力;   

be able to 强调 在特定情景中努力做成某事.  

选择:He didn’t agree with me at first, but I ___was able to___ persuade him.  

      She __could___sing when she was young.   (was able to; could)  

二、may/ might  

  1. What is the weather like in Zhuzhou?  

---It may be sunny.  

2. What is the weather going to be like in Guang Zhou?  

---It might have strong wind.  

3.       May I come in?  

4.       May you succeed!  

用法总结:may/might表示1. 推测 “也许”might语气更加委婉  2. 请求允许“可以”  3. 用于祈使句中表示祝愿(用倒装结构)  

三、must/have to  

1. You must wear your school uniform.  

2You have worked hard all day. You must be tired.   

3My brother was very ill, so I had to call the doctor in the middle of the night.  

用法总结:must 表示1. 必须  2. 推测“一定”  

         Have to 表示 必须 .  

当表示“必须”时,must have to的区别是:  

must表示说话人的主观看法,have to 强调客观需要,可译为“不得不”        

4 . 特别注意:  

1)  You don’t have to tell him about it. 
You mustn’t tell him about it.  

mustn’t 意为“决不可以”“不准” don’t have to 意为 “不必”。  

2)  ---Must I finish my homework today?  

--- Yes, you  must  . / No, you  needn’t  .  

四、shall/should  

1. What shall we do now?  

2. You shall get a gift from me if you can solve this problem.  

3. You shall not pass the examination if you don’t work hard.  

4. Passengers shall not talk with the driver while the bus is moving.  

5. You should go to class right away.  

用法总结:shall 表示1.征求对方意见(主要用于第一、三人称疑问句中) 2. 允诺3. 命令、警告、威胁 4. 法律、条约或协定中的义务和规定。  

          Should 表示 应该; 可以用ought to 替换。  

五、will/ would  

1. I will never do that again.  

2. Every day he will sit there hour after hour doing nothing.  

3. Will you help me with my work?  

4. Would you mind opening the window?  

5. When he was young, he would take a walk along the river every morning.  

用法总结:will表示1.意志、愿望或决心  2. 习惯 3. 提出请求(常用于第二人称疑问句中)  

          Would表示1.提出请求(比will更委婉) 2. 过去的一种习惯。  

六、need/dare  

1. You needn’t tell him the news now.  

2. --- Need I hand in my homework right now?  

  --- Yes, you must./ No, you needn’t. ( don’t have to )  

3.       The little girl dare not go out alone at night.  

4.       He needs to finish it this evening.  

5.       I don’t know how she dares to wear that dress.  

用法总结:  

1)need意为 “需要”; dare意为“敢”.   

2)need/dare 既可作 情态动词 , 也可作 实义动词 .作情态动词使用时,一般只用于  

  否定句或疑问句 中。  

3)注意need/dare作情态动词和实义动词时相应的否定形式的构成。  

   

巩固:  

   

   

情态动词  

实义动词  

   

肯定式  

   

He dares to escape.  

He needs to escape.  

   

否定式  

   

He  daren’t  escape.  

He needn’t escape.  

   

He doesn’t dare (to) escape.  

He doesn’t need to  escape.  

   

疑问式  

   

Dare he escape?  

Need  he escape?  

   

Does he dare to  escape?   

Does he need to escape?  

   

   

Step 3: 随堂检测  

¬¬¬1. Give some suggestions to Zhuzhou about how to build a new Zhuzhou using some modal verbs (at least 3 sentences)  

         1)__________________________________________________________;  

         2)__________________________________________________________;  

         3)__________________________________________________________.  

      2.翻译:  

1I don’t think he can solve the problem without any help.  

我认为他不能在没有别人帮助的前提下解决这个问题.  

          2 你应该尊敬你的父母.  

             You should respect your parents.  

3)我们必须要打扫教室吗?  

---不是,不需要.  

---Must we clean the classroom?  

---No, you needn’t.  

   

¬¬  选择正确答案:  

1.____ I water the trees on  Tuesday?  
        ---No, you needn’t. 
        A. Can 
  B. Must  C. May   D. Shall  

2. Everyone _____ do his best to make the world safe and clean.  
A. can       B. may     C. should 
  D. had to  

3. ---I don’t mind telling you what I know.  

  ---You _________. I’m not asking you for it.  

A.      mustn’t   B. may not     C. can’t     D. needn’t  

4.You _______ be tired------ you’ve only been working for an hour.  

A.      must not   B. won’t   C. can’t     D. may not  

      5. Look out! The knife is very sharp. You ______ cut your finger.  

        A. need           B. must           C. should         D. may  

   

¬选择正确答案:  

1.     Mary ____(mustn't, can't )be in Parisfor I saw her in the town only a few minutes ago  

2.     —May I pick a flower in the garden?  

          —No, you____( needn’t, mustn’t)  

3.     You ____(shouldn’t, can’t) spend much time surfing the Internet.   

4.     Everything has two sides. Beautiful songs, sometimes, _____(may, should) be just noisy to others .  

5.     The little kid _____ (dare, dares) not touch the dog.  

Step 4: 检测与反馈  

     1. Mr Wang ______ be in Nanjing now, he went to Beijing only this morning.  

        A. mustn’t be       B. may not       C. can’t           D. needn’t  

2. –The room is so dirty. _______ we clean it?      -- Of course.  

        A. Will            B. Would           C. Do            D. Shall  

     3. –Can you go swimming with us this afternoon?  

       --Sorry, I can’t. I __ take care of my little sister at home because my mother is ill.  

       A. can             B. may             C. would           D. have to  

     4. –Where is Jack, please ?    --He _____ be in the reading room.  

A. can             B. need            C. would            D. must  

     5. John ______ go there with us tonight, but he isn’t very sure about it.   

        A. must          B. can             C. will              D. may  

     6. It’s still early. You ______.  

A. mustn’t hurry    B. wouldn’t hurry   C. may not hurry   D. don’t have to hurry  

     7. ______ you be happy!  

        A. Might          B. Must           C. Wish          D. May  

8.  I want to go to the hospital, but you _____ with me.  
      A. need to not to go 
  B. do not need go    

     C. need not go       D. need go not    

9. When he was old, Mr Smith _____ sit for hours without saying anything.  
    A. would   B. should   C. must   D. will    

 10. The bus had left, so we _____ walk home.  
A. have to 
 B. ought C. had to  D. must   

11. As physics is hard enough, I _____ study it.  
   A. am not able   B. couldn’t   C. am not able to   D. cannot    

12. He is so strong that I _____ fight against him.  
A. dare not B. did dare not C. didn’t dare to D. dare not to
  

13. Since the road is wet this morning,  it _____ last night.  
  A. must rain        B. must have rained  
  C. must be rained     D. must have been rained    

     14. I often see lights in that empty house. Do you think I __ report it to the police?  

A. should       B. may         C. will         D. can  

     15. Sometimes he _____ wander around the hill all the afternoon. It’s his habit.  

A. should  B. will   C. must   D . can  

     16. I _____ such a mistake again.  
A. will never make  B. may never make  C. can never do  D. need   

     17. Even if he has time, he _____ shopping in town on Sunday.  
  A. won’t go   B. will go   C. won’t go to   D. doesn’t go  

    18.   —Excuse me, but I want to use your computer to type a report.

         —You ______ have my computer if you don’t take care of it.  

A.     shan’t     B. needn’t    C. mustn’t       D. shouldn’t  

   

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