Unit 2 Grammar Focus-2020-2021学年八年级下册初二英语同步教学课件（人教版）

Unit 2 Grammar Focus 授课人：XXXX * 一、新课引入 What can we do as a volunteer? visit the old people help to give out food to children in poor area 二、新课讲解 二、新课讲解 “to+动词原形”被称为动词不定式，常写作to do(有时to可以省略)，否定形式为not to do。 该形式又被称为动词的非谓语形式，在句中除了不能作谓语外，可作其他成分，没有人称和数的变化。 二、新课讲解 1. 做动词宾语。常见动词有would like, want, help, learn, hope, decide, volunteer。 动词不定式用法小结 e.g. We don’t _____________ too much money. 我们不想花费太多钱。 want to spend 二、新课讲解 2. 作宾语补足语。常见动词有ask, want, tell, invite, like, hate。 e.g. Mr. Li ________________________ the text. 李老师让学生们抄写课文。 asked the students to copy 3. 作目的状语。 e.g. Jack turned his head around to look at people. 杰克转过头看向人群。 e.g. Claire missed a great chance to make his dream come true. 克莱尔错过了实现梦想的机会。 4. 作后置定语。 5. 动词help及一些役使动词后面常省略to。 e.g. My mother wouldn’t _______________ _____________. 妈妈不会让我去看电影的。 let me go to the movie 二、新课讲解 6. It做形式主语，真正的主语为后面的不定式。 e.g. 保护环境对我们来说很重要。 It is important for us to protect the environment. 二、新课讲解 三、归纳小结 动词不定式：to do 定义 作用 用法 四、强化训练 Ⅰ.  根据句意及括号内所给单词的提示填空。 1. Mr. Miller gave up his job ________ (look) after his sick daughter. 2. Kate would like ________ (be) a teacher when she grows up. 3. Mrs. Hand didn’t let me ________ (give) out the newspapers. to look to be give 四、强化训练 1. Who will _______________ (自愿读) these words for us? 2. The girl often _____ her mother ____ the dishes (帮妈妈洗餐具) on weekends. Ⅱ. 完成句子 helps do volunteer to read 3. We ______ her ________ (邀请来) to our party. 4. The old man had _______________ (无事可做) every day. nothing to do asked to come 五、布置作业 Write down sentences with at least infinitives. Preview the new words. $