八年级英语上册-Unit-3-Computersppt课件 -(新版)牛津深圳版.ppt

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1、Unit 3 ComputersModule 2 Science and technology自主预习一、根据汉语写出英文单词1.(计算机)显示器(n.)_2.扬声器(n.)_ 3.打字(v.)_4.受喜爱的；受欢迎的(adj.)_5.操纵；控制(v.)_6.依靠；依赖(v.)_7.极小的；微小的(adj.)_8.昂贵的；价格高的(adj.)_9.比较；对比(v.)_10.操作；控制(v.)_11.总额；合计(n.)_12.订货；订购(n.)_monitorspeakertypepopularcontroldependtinyexpensivepareoperatetotalorder二、根据

2、汉语写出下列词组1.依靠 _2.总计；共计 _3.盼望；期待 _4.除之外（还）_5.怎样处理 _6.玩电脑游戏 _7.没意识到；未察觉 _8.从事工作 _depend ongrand totallook forward toin additionwhat.do withplay puter games(be)unaware ofwork as三、翻译下列句子1.现在电脑正变得更小、更好。_2.你对电脑的依赖程度比你意识到的要深得多。_3.它们能比我们计算得更快,而且几乎从不出错。_4.此外,电脑还能做一些重要的工作,例如操控铁路系统,驾驶飞机和宇宙飞船。_5.例如,它们可能比人类(医生)更胜

3、任医生这种工作。_Now puters are being smaller and better.You depend on puters more than you realize.They can calculate at a faster speed than we can and almost never give wrong answers.In addition,puters can do important jobs like operating railways and flying planes and spaceships.For example,they may be b

4、etter than doctors at doing their job.词汇精析【1】ordern.a request for goods 订货，订购;a condition of regular or proper arrangement 顺序；秩序Weve received an order for three tons of coal.我们已经收到了两吨煤的订单。Please arrange in alphabetical order.请按字母顺序排列。【拓展】(1)keep sth.in order 使某物有次序Its not easy for the teachers to ke

5、ep their classes in order.教师要把课堂秩序维持好是不容易的。（2）order还可以作动词，意为“命令；订购；点餐”，order sb.to do sth.命令某人做某事He ordered them to start the work at once.他命令他们马上开始工作。【应用】(1)He ordered the enemy soldiers _(put)down their guns.(2)()Please keep all the items order.A.in B.out of C.with to putA【2】parev.find out the sim

6、ilarities or differences between things 比较；对比You should pare the prices before you buy something.你应该在买东西前比较一下价格。【同根词】（1）parative adj.比较的Why dont we do some parative advertising？我们为什么不能做一些对比广告呢？（2）parison n.比较；对比He wrote a paper on the parison between Chinese culture and American culture.他写了一篇关于中国文化和

7、美国文化的比较的论文。【拓展】(1)pare.with.把与作比较Compare your lifestyle with his,his is healthier.用你的生活方式与他的比较，他的更健康。(2)pare.to.把比喻成People often pare young people to the rising Sun.人们常把年轻人比喻成正在升起的太阳。【应用】(1)There is no _(pare)between the two.(2)()Compare this car _ that one,and you will find the differences between

8、them.A.to B.with C.for(3)()This song pares our country a big family.A.to B.with C.forparisonBA【3】speakern.someone who talks（especially someone who has a public speech）演讲者;a piece of electrical equipment,for example part of a radio or set of equipment for playing CDs or tapes,through which sound es o

9、ut 扬声器The sounds of the guitar are sent through the speaker.吉他的声音通过扬声器传送出去。【同根词】（1）speak v.“说；讲”，其过去式为spoke，过去分词为spoken。I rang the hotel and spoke to Louie.我打电话给宾馆，跟路易通了话。（2）speech n.演讲；讲话His speech inspired the soldiers with courage.他的讲话激发了战士们的勇气。【拓展】speak，tell与say的用法区别（1）习惯用法：表示“演说；演讲；发言”等，一般用 spe

10、ak。Who is going to speak at the meeting?谁将在会上发言？表示“讲故事；说谎”等，一般用 tell。He often tells us interesting stories.他经常给我们讲有趣的故事。tell a story讲故事tell the truth说实话表示“说某种语言”，一般用 speak。Do you speak French?你会说法语吗?（2）tell可意为“讲述；告诉”。tell sb.sth.意为“告诉某人某事”；tell sb.（not）to do sth.意为“告诉某人（不要）去做某事”。（3）talk 一般为不及物动词，意思是

11、“交谈；谈话”，着重强调两者之间的相互说话。talk常用短语为talk about。（4）say一般用作及物动词，着重强调说话的内容，它的宾语可以是名词、代词或宾语从句。He can say his name.他会说他的名字。Please say it in English.请用英语说。Shes saying，“Dont draw on the wall.”她在说：“别在墙上画。”【应用】（1）The first _（speak）began to talk,very fast and rather loudly.（2）When she was young,she _（speak）English

12、 in the USA.speakerspoke【4】control v.to use power to manage or mand 操纵，控制（机器或系统等）You must learn to control your temper.你必须学会控制你的脾气。【拓展】(1)lose control 失去控制You shouldnt lose control.你不应该失控。(2)out of control 失去控制The plane is out of control.飞机失控了。(3)under control 处于控制之下The fire has been brought under c

13、ontrol.火势已受到控制。(4)under ones control 在某人的控制下During the World War II,the area was under the control of the US Navy.二战期间，这一地区被美国海军所控制。【应用】()Everything is _ control.A.on B.out C.underC【5】dependv.to need the help of someone,or to trust that someone will do something 依靠；依赖All living things depend on the

14、Sun for their growth.万物依靠太阳生长。【同根词】（1）dependent adj.依赖的Children are totally dependent on their parents for food and shelter.小孩子完全依赖父母提供食宿。(2)dependence n.依靠He lived in a state of dependence on his friends help.他依靠朋友的帮助而生活。(3)independent adj.独立的We should learn to be independent.我们应该学会独立。(4)independen

15、ce n.独立He was afraid of losing his independence.他担心丧失自己的独立。【拓展】depend on 依靠；依赖；取决于。当意为“依靠”时，相当于rely on；意为“取决于”时，相当于be decided by。You can depend on her，because she always keeps her promises.你可以信赖她,因为她一向都是信守诺言的。How much it costs depends on how much you buy.价钱取决于你买多少。【应用】(1)()The little boy always depe

16、nds on his mother.(选出可以替换画线部分的最佳选项)A.relies on B.is decided by C.believes in(2)India gained _(depend)from Britain in 1947.(3)All is _(depend)on your decision.Aindependencedependent【6】operate v.to control the working of something,make something work 操作，控制；cut open a patients body in order to remove,replace,or repair a diseased or damaged part 做手术Could you tell me how to operate this machine?你可以告诉我怎样操作这部机器吗？The doctor operated on his arm last week.医生上周给他的手臂做了手术。【同根词】operation n.操作；手术The operation of this machine is simple.这台机器的操作很简单。