单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit 3,Computers,Module 2,Science and technology,Unit 3 ComputersModule 2 Sci,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,.)_,monitor,speaker,type,popular,control,depend,tiny,expensive,compare,operate,total,order,自主预习一、根据汉语写出英文单词monitorspeaker,二、根据汉语写出下列词组,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 on,grand total,look forward to,in addition,what.do with,play computer games,(be)unaware of,work as,二、根据汉语写出下列词组depend ongrand tot,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,),更胜任医生这种工作。,_,_,Now computers are becoming smaller and better.,You depend on computers more than you realize.,They can calculate at a faster speed than we can and almost never give wrong answers.,In addition,computers can do important jobs like operating railways and flying planes and spaceships.,For example,they may be better than doctors at doing their job.,三、翻译下列句子Now computers are beco,词汇精析,【,1】order,n,.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。,词汇精析【1】ordern.a request for g,【,拓展,】,(1)keep sth.in order,使某物有次序,Its not easy for the teachers to keep 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.inB.out ofC.with,to put,A,【拓展】to putA,【,2】compare,v,.find out the similarities or differences between things 比较；对比,You should compare the prices before you buy something.你应该在买东西前比较一下价格。,【同根词】,（1）comparative,adj,.比较的,Why dont we do some comparative advertising？我们为什么不能做一些对比广告呢？,（2）comparison,n,.比较；对比,He wrote a paper on the comparison between Chinese culture and American culture.他写了一篇关于中国文化和美国文化的比较的论文。,【2】comparev.find out the sim,【拓展】,(1)compare.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)compare.to.,把,比喻成,People often compare young people to the rising Sun.,人们常把年轻人比喻成正在升起的太阳。,【拓展】,【,应用,】,(1)There is no _(compare)between the two.,(2)(,)Compare this car _ that one,and you will find the differences between them.,A.toB.withC.for,(3)(,)This song compares our country a big family.,A.toB.withC.for,comparison,B,A,【应用】comparisonBA,【3】speaker,n,.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 comes out 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。,【3】speakern.someone who talk,【,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,speak,。,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,?,【拓展】,（,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“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。”,（2）tell可意为“讲述；告诉”。tell sb.,【,应用,】,（,1,）,The first _,（,speak,）,began to talk,very fast and rather loudly.,（,2,）,When she was young,she _,（,speak,）,English in the USA.,speaker,spoke,【应用】speakerspoke,【4】,control,v,.to use power to manage or command 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。,【4】control v.to use power,【,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 control.,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.onB.outC.under,C,【拓展】C,【5】depend,v,.to need the help of someone,or to trust that someone will do something 依靠；依赖,All living things depend on the 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。,【5】dependv.to need the help,(3)independent,adj,.,独立的,We should learn to be independent.,我们应该学会独立。,(4)i