七年级英语非谓语动词.ppt

* 非谓语动词 授课教师： 麒麟区第三中学 晏聪珍 非谓语动词 非谓语动词：也就是不能用作 谓语的动词。 动词不定式 V_ing 过去分词 动词原形 包括 一.动词不定式 肯定式： to +动词原形 1、构成 否定式： not to +动词原形 2、动词不定式的常见用法 A、不定式作 主语 当不定式作主语时，习惯上用作it形式主语，而将动词不定式后置，构成固定句型。 It’s +adj +to do sth. （1）To learn English well is not easy. （2）To protect our environment is very important （1）It’s not easy to learn English well. （2）It’s important to protect our environment. B、不定式作宾语 常见的只能跟to不定式的动词及短语。 想要want wish 希望 hope希望 决定decide 学会learn 想要would like 迫不及待can’t wait 准备get ready （1）I hope to be a doctor. （2）She can’t afford to buy a camera. 计划plan 负担不起can’t afford Wang Tao hopes to be a scientist in the future and wishes to visit the moon by himself. He would like to collect pictures about the moon very much, so he learns to search the Internet and wants to get more Information . Then he plans to buy a computer, but he can’t afford to buy one. Now he can’t wait to look for a job and decides to work hard at it. At the same time he get ready to make his dream come true. C、不定式作宾语补足语 常见动词： 请、叫ask 告诉tell 想要want 邀请invite 允许allow 喜欢like 警告warn 鼓励encourage 教teach 想要would like （1）My mother always likes me to get up early. （2）Lucy often teaches me to learn English. One day my mother allowed me to go to the park, but she warned me not to come back late.My father liked me to go with Lucy,because he wanted me to learn English from Lucy. I invited her to go with me . Lucy taught me to study English and encouraged me to speak more English . Sometimes she asked me to teach her Chinese.I would like her to stay with me very much, so I told her to wait for me outside the school gate every Saturday. D、不定式作定语 熟记下列短语 something to eat something to drink anything else to say much work to do something nice to eat 1.I have a lot of homework to do. 2.Do you have anything to say? lots of housework to do 3. My father has something important to tell me. 4. Would you like something to dr