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 4 Amazing Science,Topic 1 When was it invented,Section D,What method did you use to find your lost cellphone?,GPS is like a man-made star.We can use it at any time,in any place and in any weather to find out our position.The early,explorers,used the stars as landmarks to know where they were and in which direction they were going.This method worked well at night as long as the weather was good.But it didnt,work so well during the rest of the time.,Lets use the GPS.,n.,探险者，,勘探者,Teaching aims.,1.Grammar,：,The radio,was invented,by Guglielmo Marconi in 1895.,When,was,the digital camera developed?,It,was developed,in the 1970s.,Where was it developed?,It was developed in Japan.,What,is,a rocket,used,for?,Its used for sending satellites or spaceships into space.,2.Functions,：,I wish I could go into space some day.,I hope you dream will come true.,Its said that he invented more than two thousand things,during his life.,Inventing is interesting and exciting and everyone can be,an inventor.,3.New words,：,explorer,mark,system,man-made.,一,.,读,p87,短文，在文中划出下面的短语 并朗读。,1.,探索我们的世界,_ 2.,在哪个方向,_,3.,只要,_ 4.,在其余时间里,_,5.,好的地标,_ 6.,全球定位系统,_,7.,地球的形状,_ 8.,在任何时候,_,9.,帮我们探索星球,_,预习导纲,二.读以下句子，翻译并探究。,1.This method worked well at night as long as the weather,was good and the stars could be seen.译：_,探究：work well意为_.well是_词。同类用法还有：,物品+sell well.意为_/衣物+wash well意为_,车+ride well 意为_,做一做：This method sounds_,and works _ in our,studies.,A.well,well B.good,good C.good,well D.well,good,2.The GPS is a great invention that helps us explore our planet and discover where we are.,译,_,探究：此句中,that,是,_,代词，引导,_,从句。,where,是,_,副词，引导,_,从句。,做一做：,a).Tony,tell me the result of the discussion,_ you had with your dad yesterday.,A.what B.that C.when D.who,b).Does anybody know_?,Its Uncle Lees.,A.where is the bike,B.who the bike is,C.whose bike it may be,D.whose bike it is,当堂训练,1.With the money_ he saved when he was young,he,could go on with his education.,A.what B.who C.this D.that,2.Would you please drive _?My train is leaving.,Id like to,but safety comes first.,A.better B.more carefully C.more slowly D.faster,3.Sorry for being late again.,_ here on time next time,or youll be punished.,A.Be B.Being C.To be D.Been,4.Although flight MH370 has been missing for months,I,do believe it _ some day in the future.,A.will find B.wont find C.will be found D.wont be found,5.She asked me_.,A.that I could help her with her English,B.if I could pick her up after school,C.where I buy the book D.when would I leave,1.How did the early,explorer,s know where they were?,They found out where they were by using stars.,2.Whats the disadvantage of using the stars as guiding marks?,Its disadvantage is that it didnt work well when the weather was bad and the stars could not be seen.,3.What is a GPS?Is it useful to use?,It is like a man-made star.We can use it at any time,in any place and in any weather to find out our position.It is very useful.,4.What do you think the GPS will be used for in the future?,Read the passage and discuss the questions on Page88.,Listen to the passage and number the following sentences.,()It can also be used to study the shape of the earth.,(,)The early explorers found that the stars in the sky were good guiding marks.,()This method worked well at night as long as the weather was good and the stars could be seen.,()We can use it at any time,in any place and in any weather to find out our position.,根据首字母提示，完成短文。,Thanks to GPS,we can exactly know w _we are now.GPS is like a man-made“star.It can be u_ in any place and any weather condition to find out our p_.In the past,the early explorers had to use stars in the s_ to tell them where they were,however,this method didnt work well when the weather was bad.So GPS is a great invention that can help humans to better e_ our planets.,here,osition,sed,ky,xplore,试一试,Grammar,Passive Voice(),The radio,was invented,by Guglielmo Marconi,in 1895.,When,was,the digital camera,developed,?,Where,was,it,developed,?,What,is,a rocket,used,for?,It,was developed,in the 1970s.,It,was developed,in Japan.,It,is used,for sending satellites or spaceships into space.,Functions,1.You are late,all the tickets _(sell)out an hour ago.,2.This type of cellphone _(make)in Shenzhen.,3.I _(not invite)to yesterdays party.,4._ those machines _(check)this morning?,5.Many trees and flowers _(plant)in our school last year,and they made our school a beautiful garden.,were sold,was made,were/was,+,v.,的过去分词,练一练,wasnt invited,Were,checked,were planted,()1.Hurry up,you _ on the phone.,A.WantedB.was wanted C.are wanted,(,)2.Some stories _the children by the teacher,everyday.,A.is told forB.are told for C.are told to,()3._that he has studied abroad for five years.,A.It is saidB.It says C.That is said,()4.The window _ five minutes ago.,A.is cleaned B.was cleaned C.can be cleaned,()5.The children _by the teachers at school.,A.take care of B.are taken care,C.are taken care of,C,C,A,B,C,Choose the best answer.,()6.I