江苏省沭阳县潼阳中学高中英语必修五教案：UNIT1 8 .doc

1、 教学案科目: 英语 主备人： 备课日期： 课 题Unit 1 to-infinitive and doing第 8 课时计划上课日期：教学目标1. Recognize the basic forms of the to infinitive and bare infinitive;2. Learn how to use them in different situations教学重难点How to grasp the to infinitive and bare infinitive deeply.教学流程内容板书关键点拨加工润色Step1: Greetings.Step2: 看下列划线部分

2、在句中所作的成分。1. Its a good habit to have breakfast every day.2. Mr. Black said he had an important meeting to attend.3. Taotao decided to go abroad for education.4. What I can do now is to cook for my mother because she is ill.5. He returned home to find his friend waiting for him.6. The old man sat dow

3、n to have a rest.7. Who taught you to play the guitar.8. The room is not big enough to live in.Step3: To-infinitive1. 动词不定式的时态和语态 主动语态 被动语态 一般式 to do to be done 完成式 to have done to have been done 进行式 to be doing 无 完成进行式 to have been doing 无 (1) 一般式：动词不定式的一般式表示的动作有时与谓语动词表示的动作同时发生，有时发生在谓语动词表示的动作之后。 He

4、 seems to know this. 他看起来知道这件事情。（动作同时发生） I hope to see you again. ( I hope that Ill see you again.) 我希望再见到你。（发生在谓语动词表示的动作之后。）(2) 进行式：表示动作正在进行，与谓语动词表示的动作同时发生。 He seems to be eating something. 他看起来正在吃东西。(3) 完成式：表示动作发生在谓语动词表示的动作之前。 I am sorry to have given you so much trouble. 对不起给你添了那么多麻烦。(4) 完成进行式：表示

5、在谓语动词的动作之前一直在进行的动作。She is known to have been dealing with the problem for many years. 大家知道她处理这个难题已经有很多年了。2. 分析下列6个句子中动词划线的不定式所在句子中充当的成分。 (1) To find a best friend is difficult. (2) I need to sleep for eight hours every night. (3) I asked him to come over. (4) I have a very important meeting to atten

6、d. (5) His aim was to cheer me up. (6) You need to apologize quickly to avoid losing a good friend.3. 从上面可以分析不定式在句中可充当主语，宾语，表语，定语，状语和宾补。 （1）作主语 To play basketball with you is an unforgettable experience. To say is one thing; to do is another. 不定式作主语往往用it作形式主语，真正的主语不定式放至句子的后面。 a) It is + adj. (easy,

7、important, difficult) + 不定式 b) It is + n. (a pity, a pleasure, ones duty, a shame) + 不定式 eg. Its my duty to teach you how to be a student of No.3 Middle School. c) It takes/needs/requires + some time (hours, months, days, patience) + 不定式 eg. It requires patience to be a good teacher.（2）作表语：当句子的主语是ai

8、m, idea, policy, question, suggestion, wish, task, duty, job, purpose等或者主语是what引导的名词性从句时，后面可以用不定式做表语，用以说明主语所包含内容。 eg. Our most important task now is to make a plan.注：作表语的不定式都带to，但当主语部分有实义动词do时，to可以省略。 eg. The only thing we can do now is wait and see. （3）作宾语 （在一些及物动词后，常跟不定式作宾语） I wanted to visit the

9、Great Wall. a) 可以直接用不定式作宾语的动词很多，常见的有：agree, afford, tend, ask, decide, determine, expect, fail, hope, learn, intend, manage, offer, plan, promise, refuse, want, wish等2005年天津卷12题：I dont want _ like Im speaking ill of anybody, but the managers plan is unfair.A. to sound B. to be sounded C. sounding D.

10、 to have sounded当不定式短语比宾补长时，往往将不定式放到宾补后，而用先行代词it作形式宾语，常用动词有feel, think, find, believe, consider, make等 I felt it easy to learn English . b) 不定式一般不作介词的宾语，只有少数介词如but, except等后面可以跟不定式作宾语。一般情况下作介词宾语的不定式都带to，如果but或except所在句子里的谓语动词都是实义动词do, does, did时，通常省略to。 Eg. We have no choice but to wait. We can do nothing but wait. He can do everything except work.Step 4:Homework教学心得