八年级上册>Unit 3 Computers课件

课件25张PPT。 Unit3 ComputersReadingWhat do you know about……?keyboardmousemain unitspeakermonitorAbout computers1. The _____shows words and pictures. 2. We use the _____for typing 3. The “brain”of a computer is in the _____ 4. We move the _____to control the computer. 5. We hear sound from the _____.monitorkeyboardmain unitmousespeakerBefore you readRead the following and tell whether it is true or false. 1. Computers are getting smaller and better. 2. Computers can do important jobs like flying planes 3. Computers may work as doctors 4. Computers are expensive.(√ )(√ )(√ )( X )Reading and note1. in the 1940s 在20世纪四十年代 My father was born in the 1950s. 我父亲出生在五十年代。 2. smaller and bigger 又小又好 比较级：cheaper and better 又便宜又好3.be unaware of =don’t know 不知道 He was unaware of the danger ahead. =He didn’t know the danger ahead. 他不知道前面的危险。 be aware of 知道，意识到 我意思到妈妈生气了。 I _____my mother’s anger.am aware of4. You depend on computers more than you realize. depend on computers 依赖电脑 You should depend on yourselves . 你应该依靠你自己了 more than 超过 realize =be aware of 意识到 I realize that he is angry . 我意识到他生气了。 5. What can we do with computers ? 我们可以用电脑来做什么呢？ do with 处理 What can we do with this money? 我们该如何处理这笔钱呢？ _____can we do _____the trouble?Whatwith6. We can use computers to calculate. use sth to do sth 用某物去做某事 We use pens to write .我们用笔来写字 7. They can calculate at a faster speed. 他们能用更快的速度来计算。 Plane can travel at a faster speed than train. 飞机比火车以更快的速度飞行。 8. In addition , computers can do important jobs like operating railways and flying planes and spaceships. In addition 另外 In addition , he is good at painting . 另外，他还擅长画画。 like 在这里是一个介词， “像”的意思，后面动词用动名词形式。 He likes sports very much like _____(play) basketball.playing9. Your brain can produce new ideas…… produce new ideas 想出新的主意 10. however 然而，但是 Computers can do a lot of jobs better than humans. However , they can’t produce new ideas. 电脑做很多工作都比人做得好，但是他们不能产生出新的想法。11.For example, they may be better than doctors at doing their job. be good at doing sth 擅长做某事 be better at doing sth 比。。。更加擅长做某事 Computers are better at calculating than humans . 电脑比人类计算的更好。12. What will happen to us if computers can do all our jobs? happen to 发生 What happened to him last night? 昨晚他发生什么事了？ 13. Will we have nothing to do? have nothing to do 无所事事 have something to do 有事要做 C. Vocabulary C1. Fill in the blanks with the right words. Change their forms if necessary. 1. If something is very small, it is _____(line 5) 2. Some young people always need help from their parents. They should learn to_____ themselves. (line 8) 3. We had fun and learnt something new as well. We had a good time._____, we learnt a lot (line 14)tinydepend onHowever4. When we make a machin ... ...