Unit 2 Topic 2 Section C课件2023-2024学年仁爱科普版九年级英语上册

Unit 2 Saving the Earth Topic 2 Section C 学习目标 预习检测 知识梳理 课堂总结 学习 导航 重点探究 当堂检测 新课导入 Let's know something about O3… 能熟悉并正确运用本课时的重点单词和短语 1 2 能进一步学习各种污染对地球造成的危害和造成这些污染的原因 3 能根据不同的阅读的目的，运用简单的阅读策略获取信息 学习目标 1.There are many books in the bookstore______I want to buy none of them. A.when B.what C.while D.that 2.The thief_______when the police were talking. A.escaped B.expected C.excused D.encouraged 预习检测 C A 3.The teachers said that the sun ______in the east. A.rose B.rise C.rises D.risen 4.They went_______to the hospital to see the man. A.direct B.directly C.hardly D.slow 5.I have no time to eat here, so I want to______the food. A.take off B.take up C.take down D.take away C B D 知识梳理 Key points 1. Some things we have done are very good for the earth while others are bad. 我们所做的一些事情对地球有益，然而其他一些对地球却有负面影响。 ※ We have done…前省略了that,作定语从句，修饰前面的some things. ※ be good for 对……有益； be good at = do well in 擅长……; eg: Doing morning exercises is good for our health. 做早操对我们的健康有益。 He is good at swimming. 他擅长游泳。 Key points ※ ① while conj. 而，然而，相当于but. 表示对比； eg: He is a worker, while I am a teacher. 他是工人而我是教师。 ② while conj. 引导时间状语； eg: While she was listening to the radio, she fell asleep. 她听着收音机睡着了。 ③ while conj. 引导让步状语从句，意思是“虽然……但是……”、“尽管……但是……”(多放于句首)； eg: While he loves his students, he is very strict with them. 虽然他爱他的学生，可是他对他们很严格。 ④ while conj. 引导条件状语，意思是“只要”； eg: While there is life there is hope.只要生命存在，就有希望。 ⑤ while作名词用，表示“一会儿”“一段时间”； eg: She likes to lie down for a while after lunch.她喜欢午饭后躺一会儿。 Key points 2. The earth is taken away. 泥土被带走。 take away 拿走、带走 Eg: 难道你要拿走他们的铅笔吗？ Are you goingt to their pencils? take away Key points 3. As a result, many rivers and lakes are now dead. 结果，许多河流和湖泊都死了。 ※ as a result 因此，结果 Eg: 因此，他们会非常具有说服力。 As a result, they can be very persuasive. ※ be dead 死气沉沉 Key points pass through the hole 穿过洞 pa