高中英语《Unit 1 Grammar and usage》教案 新人教版必修5

1、江苏省新沂市第二中学高中英语Unit 1 Grammar and usage(2)教案 新人教版必修5教学目标Enlarge students to learn something about To-infinitive and Bare infinitiveLet them know the functions of To-infinitive and Bare infinitive重点Try to use To-infinitive and Bare infinitive难点How to make them to use To-infinitive and Bare infinitive

2、correctly教法及教具Talking , Practicing 教学过程教 学 内 容 个案调整教师主导活动学生主体活动 Step 1 Introduction动词不定式的形式：1.一般式：表示的动作通常与主要的谓语动作同时或几乎同时发生，或是在它之后发生.（not）to do（主动） to be done（被动）e.g.: I am glad to see you. The house needs to be cleaned.2.进行式：表示谓语的动作或情况发生时，不定式表示的动作正在进行. to be doing（主动）e.g.: He pretended to be reading

3、 when I came in.3.完成式：表示不定式的动作发生在谓语动作之前或表动作发生在过去并且已完成。to have done （主动） to have been done（被动）e.g.: Im sorry to have lost your key. It has been an honor for me to have been invited to your country.4.完成进行式：表示不定式的动作在谓语动作之前发生并一直进行着.to have been doing（主动）e.g.: He was said to have been living in London fo

4、r 20 years.主动式被动式一般式to do to be done进行式to be doing 无完成式to have done to have been done完成进行式to have been doing无不定式的常见结构:1.用作独立成分. 有一些不定式短语可以用作状语修饰整个句子，也可被称为插入语.e.g.: To be honest, we are not sure to work out the problem. To be frank, I dont agree with you.to tell you truth说老实话 to begin with首先 to say n

5、othing of姑且不说 to be sure诚然，固然 to make a long story short长话短说 to be brief简言之 to conclude总而言之2.疑问词+不定式结构疑问词who, what, which, when, where, how, why 后加动词不定式构成不定式短语，它在句中作主语、宾语和表语.e.g.: How to solve the problem is very important.He didnt know what to say. My question is when to start.3.不定式的复合结构，即It is+形容词

6、+for/of sb.+不定式在“It is+形容词+of sb.+不定式”的结构中，形容词往往表示人物的性格和特征，如：kind, silly, good, clever, wrong, right, foolish, careless, impolite, honest, bad等.e.g.: It is kind of you to think so much of me. It is foolish of you to say that.在“It is+形容词+for sb.+不定式”的结构中，形容词往往表示事物的性质,如:important, possible, impossible

7、, necessary, difficult, hard, reasonable等.e.g.: It is necessary for you to complete the program on time. It is hard for him to get rid of his bad habits.Bare infinitive不定式的特殊用法:1.在had better, had best, would rather, would ratherthan, would sooner, cannot but, cannot help but, why not等结构后直接跟动词原形或“not

8、+动词原形”.e.g.: Youd better listen to your teachers opinion. He cannot but move to another street. We cannot help but admire his courage. He always prefers to ride a bicycle rather than ride on a crowded bus.2.两个不定式由and, or, except, but, whether等并列使用时, 为了避免重复，后面的不定式符号to可省略.e.g.: The little girl hardly

9、knew whether to laugh or cry. Can you help me to call him and ask him to attend the meeting ?3.不定式符号的单独使用。为了避免重复上文中出现过的动词，可以用不定式符号to来代替上文中出现过的不定式结构.(1)在助动词或情态动词之后，如be going to, used to, have to, ought to, be able to, be about to等。e.g.: She has to go, but you dont have to (go).(2)在want, decide, like, love, hope, wish, mean, refuse, try等动词之后.e.g.: You may go with them if you hope to (go).(3)在作宾语补足语的ask, tell, order, advise, persuade, warn, wish, permit, allow等动词之后.e.g.: Dont do anything unless your father tells you