【公开课课件】九年级Unit 4 Topic 3 Section C

1、Unit 4 Amazing ScienceTopic 3 China is the third nation that sent a person into space. Section C 重要性 娱乐正常地正确地杂志宫殿significanceentertainmentnormallyproperlymagazinepalace基础过关单词记忆 sgnfk()nsenttenmntnm()l prp()lmgzin pls 妻子 油漆塔警告太空漫步传说wifepainttowerwarnspacewalklegend基础过关单词记忆 wafpentta wnspeswk led()ndT

2、ranslation1.我建议你发现新方法来让电脑更好地服务我们我建议你发现新方法来让电脑更好地服务我们I advise you to discover new ways to make computers serve us better.2.我认为如果我努力工作，一切皆有可能我认为如果我努力工作，一切皆有可能I think that if I work hard then nothing is impossible.3.掌握电脑技术是重要的掌握电脑技术是重要的It is important to master computer technology.4.现在主要由电控制的宇宙飞船过去由宇航员

3、控制现在主要由电控制的宇宙飞船过去由宇航员控制Spaceships which now mainly use electric controls used to be controlled by astronauts.5.他他是第一个绕地球的国家英雄是第一个绕地球的国家英雄He is our national hero who traveled around the earth.What are the computers used for?do businessplay gameswatch moviesdo shopping send e-mailschat onlineDoctors c

4、an find diseases easily with the help of computers. Can you give an example of the use of the computer in one of the fields above? In space, computers have been used to control the speed and direction of a spaceship. What is the passage about ?The Importance of Computers. Find the key sentences and

5、key words of the three paragraghs. Paragraph 2: Since the Internet came into being, peoples lives at home have changed, too. Paragraph 3: Computers have improved our lives, but they have brought problems,too. Paragraph 1: Since computers were invented in the USA in the 1950s, they have become very i

6、mportant in many areas of work and leisure.1b 2. Complete the following diagram. computers usageproblemwork daily life1. _ of a spaceship. 2. help doctors _. 3. _ in factories. 4. help businessmen _.1. play games and _. 2. _ and _ at home. 3. _ by sending e-mails and _. 1. get headaches or _. 2. don

7、t have enough time _. 3. something on Internet is not _.control the speed and direction find diseases easilycontrol the robotsplace and cancel orders watch movies do shopping do businesscommunicate chatting online sore eyesto study or exercise true or goodThere is no doubt that we will be successful

8、. I dont doubt that they will be able to solve the problems. doubt n. & v. 怀疑，不信；拿不准怀疑，不信；拿不准2.doubt (vt.)+ 从句从句3.doubt (vi.) about / of +n. Doubt is the key to knowledge.There is no reason to doubt of his honesty.I doubt whether/if hell change his mind. 1.doubt (n.) 1.there is no doubt that compute

9、rs are very useful in Technology and business.Key Points2.Tiny computers which are inside patients bodies can keep their hearts beating normally.3.Robots are controlled by computers that are like human brains.4.They can do work that is dangerous to humans.5.More and more people have personal compute

10、rs that are used to play games and watch movies.6. The whole world is connected.7.For instanceLanguage points connect v. 连接连接 connection n. 关系，联系关系，联系1.connect A with B2.connect sth. (to sth.) besides与与except用于肯定句时，用于肯定句时，except意为意为“除除之外（不之外（不 再有）再有）”；besides意为意为“除除之外（还有）之外（还有）”。 如：如： I have another

11、 blue pen besides this one.除了这支外，我还有另一支蓝色钢笔。（除了这支外，我还有另一支蓝色钢笔。（1+1，共，共2支）支）We all passed the exam except Tom.我们都通过了考试，汤姆除外。（整体中我们都通过了考试，汤姆除外。（整体中汤姆一人不及格）汤姆一人不及格）8.Besides, not everything we read on the Internet is true or good for perly, besides, brought, get, enough Computers have improved ou

12、r lives, but they have _problems, too. For instance, if we work on computers too long, we may _ headaches or sore eyes. If we play computer games too much, we wont have _ time to study or exercise. _ , not everything we read on the Internet is true or good for us. Computers help us at work and at ho

13、me, but they must be used _. broughtgetenoughBesidesproperlyWrite a short passage with the title with One Day Without Computers. The following information may help you. Suppose you were on a special day in 2030. During the day, there were no computers in the world. What trouble would you have? You m

14、ay begin like this: One Day Without Computers Today, when I got up, I just turned on the computer as usual, but it didnt work. Then I tried my brothers PC, my parents, even my dogs, but none of them worked. Later, it was reported on TV that all of the computers in the world broke down today One Day

15、Without Computers Today, when I got up, I just turned on the computer as usual, but it didnt work. Then I tried my brothers PC, my parents, even my dogs, but none of them worked. Later, it was reported on TV that all of the computers in the world broke down today. So the world is quite different. Fo

16、r instance, we cant play games, watch movies or do shopping at home. Besides, we cant communicate by sending e-mails or chatting online. Without the help of computers, businessmen cant place or cancel orders online. Teachers cant give lessons to their students. Whats worse, robots controlled by comp

17、uters cant do dangerous work for humans. Even the doctors cant find the diseases easily. In short, we almost have trouble with everything withoutcomputers today. You can write it like this:Thank you SummaryWe learn: 1. Some words: doubt, tiny, inside, brain, cancel, connect 2. Some phrases: no doubt

18、, for instance 3. Some sentences: (1) There is no doubt that computers are very useful in technology and business. (2) Computers help us at work and at home, but they must be used properly.We can: 1. Talk about the importance of computers. 2. Write a composition by using our imagination. Read 1a. Me

19、morize the useful expressions and key sentences which we learned today. Finish Section C in your workbook. Review Sections A-C.在科学博物馆在科学博物馆民族英雄民族英雄把把. 送入送入为为.感到自豪感到自豪在过去的几年中在过去的几年中向向.证实证实取得很大的进步取得很大的进步又发射了四艘宇宙飞船又发射了四艘宇宙飞船实现你的梦想实现你的梦想in the Science Museumthe national hero sendintobe proud of in the p

20、ast few yearsprove to make great progresslaunch another four spaceshipsrealize your dream = make your dream come true 步入太空时代步入太空时代中国太空业的里程碑中国太空业的里程碑在月球上留下足迹在月球上留下足迹参加了太空飞行参加了太空飞行和某人一起和某人一起进行一次太空漫步进行一次太空漫步登陆在月球表面登陆在月球表面step into the Space Agea landmark of Chinas space industry set foot on the moon ta

21、ke part in the space flight along with sb. have a spacewalk land on the lunar surface1. 一些最近的进展一些最近的进展2. 使用电子操纵系统使用电子操纵系统3. 对某事几乎不了解对某事几乎不了解4. 掌握电脑技术掌握电脑技术5. 建议某人做某事建议某人做某事6. 谢谢你的介绍谢谢你的介绍some recent developmentsuse electronic controls know little about sth. master computer technology advise sb. to do sth. thanks for your introduction (1)besides与与except用于肯定句时，用