英语人教版九年级全册Unit 10 SectionA Grammar Focus.doc

Unit 10 You are supposed to shake hands.Section A (Grammar Focus)一、教学目标：1.了解不定式在句中充当的句子成分：主语、宾语、表语、定语、状语和宾语补足语。2.通过练习，掌握不定式在句中做宾语、宾语补足语和目的状语的用法。二、教学重难点： 通过例句，体会不定式在句中所能充当的成分，重点把握不定式做宾语、宾语补足语和目的状语的用法。三、教学方法：小组讨论法1.学法：练习法2.教学准备：PPT四、教学过程1.动词不定式的形式、特征：（1）动词不定式的基本形式为：to动词原形(不定式符号to有时可以省略)。其否定形式为：not to动词原形。（2）动词不定式是一种非谓语形式，在句中不能作谓语，其形式不随主语的人称、数的变化而变化，可以有自己的宾语、状语和逻辑主语。 如：Its important for us to keep healthy.保持健康对我们来说很重要。本句中for us是不定式的逻辑主语。2.动词不定式的用法：（1）作主语。动词不定式作主语时, 谓语动词要用第三人称单数形式。动词不定式作主语时，往往用形式主语it代替, 作为句子真正主语的动词不定式则被后置。常用句型：Its+ adj. (+for/of sb.)+ to do sth.。如： Its nice of you to take pictures for us.你真是太好了为我们拍照片。（2）作表语。常置于系动词之后。如： To see is to believe. 眼见为实。/百闻不如一见。（3）作宾语。常见的后面接动词不定式作宾语的动词有：（4）作定语。动词不定式作定语时，要置于被修饰的名词之后，作后置定语。 如：I am not free now. I have lots of things to do.我现在没有空， 我有很多事要做。（5）作状语。如： Paul is too excited to say anything. 保罗激动得说不出话来。(结果状语) He opened the door to let her come in. 他打开门让她进来。(目的状语) I am sorry to hear that your mother was ill in hospital. 听说你妈妈生病住院我很难过。 (原因状语)（6）作宾语补足语。 常见的后面接动词不定式作宾语补足语的动词有：3.复习回顾：动词不定式在句中可作：主语、宾语、表语、定语、状语和宾语补足语。4.不定式的特殊用法：在一些使役动词和感官动词后 ，要把不定式结构中的to省略。常用的有： 五看：watch，see，look at，notice，observe 三使：let，make，have 二听：listen to， hear 一感觉：feel巧学妙记：吾看三室两厅一感觉。如：I saw our English teacher enter the office just now. 刚才我看到我们的英语老师走进办公室了。5.“疑问词动词不定式”的用法：（1）动词不定式与疑问词连用可用作主语或宾语。如： When to go to Beijing hasnt been decided yet. 什么时候去北京还没决定下来。(作主语) I havent decided yet when to leave. 我还没决定什么时候离开。(作宾语)（2）“疑问词动词不定式”作宾语时可以转化为宾语从句。如： Can you tell me where to buy the scarf? Can you tell me where I can buy the scarf？你能告诉我哪里能买到这条围巾吗？（3）动词不定式的特殊句型：a. too.to 太而不能。b. .enough to do sth. 足够做某事。c. prefer to do sth. rather than do sth. 宁愿做某事而不愿做某事。 d. Why dont you do.? = Why not do.? 为什么不？6.小组讨论并展示答案： 用括号中所给动词的适当形式填空（1）I cant tell you what she said. Ive promised_(keep) it a secret.（2）Everyone is born with the ability_(learn), but learning habits are more important.（3）Even though he is not the best one in learning English in his class, he learns _ (try) his best.（4）The man drew a series of pictures about WeChat _ ( show ) how to use this software.（5）Researchers say temperatures in North Africa will continue _ ( rise ) this summer.（6）I think it is easy for us _ ( recycle ) paper in our daily life.（7）I d like to visit Wolong Panda Reserve because it allows people _ ( get ) close to pandas.（8）Mrs. Zhang often encourages us _ ( take ) part in all kinds of after-class activities to make us live a relax and happy campus life.参考答案：（1）to keep （2）to learn （3）to try （4）to show（5）to rise （6）to recycle （7）to get （8）to take7. Homework: Finish the following exercise1. I wanted to see the Beijing Opera, so Lingling offered _ me to watch an opera. A. took B. takes C. to take D. taking2. You should ask Bob_ his own clothes. He is ten years old now. A. wash B. washes C. washing D. to wash3. We must do everything we can _ waste water from running into rivers. A. prevent B. prevented C. preventing D. to prevent4. These people dress themselves in bloody shark suits. They tell people _ shark fins in order to protect sharks. A. eat B. to eat C. not eat D. not to eat5. My brother is a humorous young man. He often tells jokes to make us _ A. laughing B. laugh C. to laugh D. laughs6. Our teacher often advises us _ the habit of making notes while reading. A. to develop B. develop C. to developing D. developing7. The final exam is coming. Our teachers warn us _ time. A. not waste B. not wasting C. not to waste D. to waste8. _ the sun off her head, she wore a large hat before she went out. A. Kept B. Keep C. Keeping D. To keep9. Your classes are very lively. Yes._ our ability, teachers ask us to study in groups. A