Unit 2 Topic 3 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 3 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 Use but, and, while to answer the following questions. What activities should we do to protect the environment? What activities shouldn’t we do to protect the environment? 能熟悉并正确运用本课时的重点单词和短语 1 2 能通过阅读文章，了解现代科学技术在环境保护方面的作用 学习目标 1.______the problem, we are looking for new ways to produce power. A.Solve B.Solving C.To solve D.Solves 2.In the near future, many robots________to help us do housework. A.will be used B.will use C.are used D.will be use 预习检测 C A 3.The train can ______a speed of 300 km per hour. A.arrive B.drive C.develop D.reach 4.Not only the parents, but also the child____to have a trip. A.decide B.decides C.deciding D.to decide 5.The price of houses are increasing_______. A.rapid B.rapidly C.difficult D.quick D B B 知识梳理 Key points 1. Some countries use nuclear energy to produce power. use sth. to do sth./ use sth. for doing. 使用某物来做某事 eg: People used bamboo to write with in the past. 在过去人们使用竹子写字。 People use wind for producing electricity. 人们用风发电。 Key points 2. Its key disadvantage is that the process requires a long time (up to 30 days ) and the cost is high. 它最大的缺陷是生产过程需要很长时间（长达30天）和成本高。 process n. 步骤，过程 v.加工，处理 require v.需要，需求 require 有两种用法： *require (doing) sth. 表示主语“该……了”。 eg: The floor requires washing. 地板该洗了。 *be required to do sth.表示主语必须（被要求）…… eg: Students are required to attend classes. 学生必须按规定上课。 Key points 3. It’s too small to hold many people,but the larger models will be developed in the near future.它太小，不能承载太多的人，但在不久的将来，更大的车型将会被研制出来。 ①　hold v. 容纳，包含； eg: The plane holds about 300 passengers. 这架飞机可容纳大约300名乘客。 ②　hold v. 拿着，抓住，抱住； eg: He was holding the baby in his arms. 他抱着婴儿。 ③　hold v. 召开，举行，进行（比赛，会议等）； eg: The Olympic Games are held every four years. 奥运会每四年举行一次。 ④　hold v. (打电话时）等待，不挂断； eg: Hold on, please! 请稍等。 Key points 4.