Unit 2 Section A Grammar focus 课件 2022-2023学年人教版英语八年级下册

Unit 2 I’ll help to clean up the city parks. Section A Grammar focus At the end of the class, we are expected: 1. to learn the infinitives. 2. to know the verb phrases Grammar 动词不定式用法小结 1. He would like to help the homeless people. 2. She wanted to become a teacher. 常接to do做宾语的 动词还有哪些? 3. The boy could help to clean up the city parks. (would like. want. help. 4.He is volunteering to teach the kids. Summary: 1. 动词不定式的肯定结构:to do, 2. 动词不定式在句史做:宾语 3. 动词不定式做善语的结构 主语+ 谓语动词 + to do。 volunteer, decide, expect...) to do 否定结构not to do 2. to do作宾语补足语。 1. What did they ask you to help out with? 2. His father taught him to ride a bike. 3.It can help him to get his future dream job. Summary: 动词不定式在句中做宾语的补足语:即对宾语补充说明 动词不底或做宾在的结构 主语+谓语动词 + sb. +to do 常见动词有(ask, want, tell, invite, like, hate) sb. to do 2. to do作宾语补足语的special time. • Did you notice her leave the house?你注意到她离开屋子了吗? • I saw her get into the car.我看见她上了车。 • His parents make him sweep the floor.他父母让他扫地。 • The teachers often help us (to) solve problems. 老师们经常帮助我们解决难题。 有些动词后作宾语补足语的不定式通常不带to, 这样的动词主要有 三看(see,watch,notice) 三让(let,make,have ) 二听(hearjisten to) —感觉(feel) 动不定做help的宾补时,可带“to”也可不带“to” 2. to do作目的状语。 1.Jack turned his head around to look at people. 2.The girl could visit the sick kids in the hospital to cheer them up. 3. She still works there once a week to help kids learn to read. 主语+谓语动词 + (宾语)+ (状语)+to do。 Challenge yourself: Level I to do做后置定语 1. Claire missed a great chance to make a lot of money. 2. It's our duty to take good care of the old. 结构 It is +名词 + to do sth. It takes us two hours to finish this the work. 结构 It takes sb+ some time+ to do sth. It is not easy to catch fish with your hands only. 结构 It is + 形容词(easy, important, difficult, good...) (+for/of sb.)+ to do sth Challenge yourself: LevelII 1. I'm very glad to see you again. to do做原因状语 2. My job is to look after the animals. to do做表语 3. They boy is too young to go to school, to do做结果状语常用于:too adj. to do Challenge yourself:I特殊疑问词(除了why)+ to do