八年级英语chapter 4new课件深圳牛津版.ppt

chapter4computertechnology cd romdvd rom speakers monitor keyboard drives flashdisk mouse type打字 print打印 train火车 railway铁路 ballpointpen圆珠笔 judge法官 whatkindofmachinesusescomputers howmanyelectricmachinesarethereinyourhome doyouhaveacomputerathome isituseful questions whatdoyoudowiththecomputer outline language listening reading speaking writing morepractice step1 reading readpartaandbandcirclethenewwords thentrytofindoutthemeaningsofthem cd romdvd rom speakers monitor keyboard drives flashdisk mouse vocabulary the showswordsandpictures 2 weusethe fortypingininformation 3 the storesinformation 4 the helpsuscontrolthecomputer monitor keyboard flashdisk mouse vocabulary 5 wecanhearthesoundfromthe 6 weputthe or intothe speakers cd rom drives dvd rom bfindthefacts computers 1 maybeinsidesomemachinesinourhomes 2 candoimportantjobslikeflyingplanes 3 arealreadyclevererthanpeople notcleverer reading therearethreeshorttextstypicalofinformationleafletsornewspaperormagazinearticlesinthispart listentothetapeandtrytotellthemainideaofeachparagraph newwordsandexpressions 2 hidev hidden 1 tinyadj small 3 beunawareof notknowingaboute g thestudentwasunawareofhismistakes 4 probably adv maybe perhaps 5 calculator n smallelectronicdevice newwordsandexpressions 6 dependent adj needingsomeoneorsomething depend v 依赖 依靠 on e g youshouldnotbedependentonyourparentsallthetime 7 realize v notice knowaboute g ididnotrealizeyouwereright 8 rarely adv notoften seldom 9 diagram n alinedrawingthatshowshowsth works newwordsandexpressions 10 graph lineorlinesshowingthevariation 11 importantly adv adj important 12 operate v control keeprunning operationn 手术 14 essential adj necessary mostimportant 13 otherwise conj ifnot ifconditionsweredifferent newwordsandexpressions 15 forthetimebeing adv phr 16 create v produce make 17 judge n aseniorlawofficer 18 raise v mentionsth forpeople 19 inone sopinion按照某人的意见 20 hardlynever几乎不 难得 answerthefollowingquestions 1 whatdowecallcomputerssometimes electronicbrains 2 docomputersoperaterailways yes theycan answerthefollowingquestions 3 isacomputerclevererthaniam theanswertothisquestionis forthetimebeing no createnewideas thandoctors judgesandteachers thisraises 常见计算机术语 findthemeanings page46 hardlyevera sometimesb seldomc often2 tinya veryimportantb verybigc verysmall3 realizea allowb understandc decide c1 4 operatea makesth workb makesth workc makesth work5 forthetimebeinga inthepastb atpresentc inthefuture6 raisea liftupb putdownc bringtoourattention c1 abhiddena atruckwithrailsonit 2 beunwareofb seniorlawofficer3 railwayc writesth withacomputer typewriter 4 typed difficulttoseeorfind5 judgese donotknowabout c2 readandthink page47 s1theremaybetinycomputersinyourhome s2where forexample s1insideyour or d 2 s1computerscandomanythings s2canyougivemesomeexamples s1computerscan and tvset telephone washing machine calculate type print draw 3 s1computerscandosomeimportantjobs s2forexample s1theycan and d 4 s1ahumanbraincandosomethingsbetterthanacomputer s2forexample s1itcan operate railways fly planes creat new spaceships ideas 5 s1infuture computersmaychangeourlivesalot s2forexample s1wemayhave nothing to do notes 比较suchas和forexample用法 listentotherecording andcompletethedetailsofmabel sorderonpage22 usefulwordsinthispart ballpointpen圆珠笔screenfilter显示屏officechair办公椅 step2 listening topofficesupplies companyname customername customerno hi locompany mabelwang ky 73620 p 1961 white 10boxes 30 300 c 4091 keyboard 1 190 c 4083 officechair black 1 1800 1800 2404 p49 language thecomparative superlativeofadjectives step3 er 动词 be as 形容词 副词原级 b as 动词 be 形容词 副词比较级 b than be 形容词最高级 范围 in of the 直接加 er est 如small smallersmallest去词尾不发音的e 加 er est 如wide widerwidest重读闭音节词结尾 且词尾只有一个辅音字母的 双写该辅音字母 加 er est 如 big biggerbiggest以辅音字母 y结尾的 变y为i 加 er est 如easy easiereasiest early earlierearliest一般双音节和多音节的形容词或副词直接在该单词前加单词moremost构成其比较级和最高级 如polite morepolitemostpolite politely morepolitelymostpolitely 形容词或副词比较级和最高级的变化规则 不规则变化的形容词或副词 1 包含形容词比较级的句子多带有一个由than引起的状从句 表示和什么相比 从句中有些词会省略掉 sheistallerthanhereldersister 她比她姐姐高 thisbookisinsimplerenglishthantheotherone 这本书的英文比另一本容易 lifewasmuchharderthanitistoday 那时的生活比现在苦得多 2 有时状语从句可以省略 theweatheriswarmertoday 今天天气要暖和得多 areyoufeelingbetternow 现在你感觉好一点了吗 i llbemorecarefulinfuture 以后我要细心点 3 在表示 和 一样 时 可用 as as 结构 前面的as后要用原形 heisasbusyasbefore 他还是和以前一样忙 形容词比较级和最高级的用法 4 比较级前可以用表示程度的数量词 倍数 百分数等 用作状语 i maheadtallerthanyou 我比你高一头 thisdeskistwofeetlongerthanthatone 这张桌子比你的那张长两尺 ourroomistwiceaslargeyours 我们的房间比你们的大两倍 5 形容词比较级前加much even still far alittle lot等 加强语气 thisisbetterbyfar 这好得多 6 比较级 and 比较级 表示 越来越 the 比较级 the 比较级 表示 越 就越 ourcountryisgettingstrongerandstronger 我们国家变得越来越强大了 thefartherathingis thesmalleritlooks 一件物体越远 看起来就越小 practice 在空格中填入所给形容词的适当形式 1 sheistwoyear thanme she sthe girlinourclass young 2 billis thantom he sthe ofthethreechildren old 3 johnisthe boyintheclass clever 4 cairoisthe cityinegypt big 5 herbicycleis thanmine good 6 mycoldis todaythanitwasyesterday bad 7 tokyois frombeijingthanfromshanghai far 8 thisquestionis thantheotherone simple 9 thisstreetis thanbeijingroad it sactuallythe streetinthewholecity narrow 10 itis inhongkongthaninkunming hot younger youngest older oldest cleverest biggest better worse farther simpler narrower narrowest hotter 把下面句子译为汉语 thetownhasmorethan7 000people theyspendmoreandmoremoneyonfood shelookednomorethansixteen isawatinyman lessthansixincheshigh ifoundmyselflessandlessinterestedinchemistry thesmallerthehouseis thelessitwillcosttoheat 房间越小 所花费的取暖费越少 他们花费在食物上的钱越来越多 这个城镇的人数有7 000多人 我看见一个小个子男人 他的身高不到六英尺 我发现我对化学越来越没有兴趣了 这个城镇的人数有7 000多人 1 theairinbeijingisgettingmuch nowthanafewyearsago a cleanb cleanerc cleanestd thecleanest 2 amymakesfewermistakesthanfrank shedoesherhomework a morecarefullyb morecarelesslyc morecarefuld morecareless 4 whichdoyoulike ipreferthisone a wellb bestc goodd better 3 whogetsup yourfatheroryourmother mymother a earlyb earlierc earliest 5 thebusierheis the hefeels a happilyb happyc happierd morehappy 7 sorry itookyourmp3bymistake i llbe carefulnexttime a mostb morec much 6 thepopulationintheworldislargerandlarger idon tthinkfoodwillbe a lessexpensiveb muchexpensivec moreexpensived alittlebitexpensive 8 ivanwouldliketohave car hehatesrepairinghiscarsooften a goodb betterc abetterd best 10 allenspent timeandmade sentencesthantony a fewer moreb less morec much manyd more many 9 howareyoutoday francis much butmydoctorsaysi llstillhavetorestforanotherfewdays a wellb goodc betterd best 11 ofalltheballgames ilikebaseball it sreallymyfavourite a wellb goodc betterd best morepractice davidisgoingabroadforthefirsttimeandneedstobuyasuitcase heistalkingtoasalesmaninashop completetheconversation a1 expensivelightcheapheavybigsmall salesman canihelpyou sir david yes ineedasuitcase canyoutellmeaboutthesetwo theredonecosts 2500 whyisit 1 thantheblackone salesman becauseit smadeofleather sir theblackoneismadeofplastic sotheblackoneis 2 thantheredone leatheralwayscostsmore david isee moreexpensive cheaper salesman butonaplane youmustthinkabouttheweight theredsuitcaseis 3 thantheblackone youtrythem sir david oh you reright theblackoneismuch 4 thantheredone butisitverystrong salesman yes it squitestrong itwilllastforyears andlookatthesizetoo sir theblackoneis 5 thantheredone david yes theredoneis 6 thantheblackone that strue heavier lighter bigger smaller expensivelightcheapheavybigsmall thisisthesmallestmodel 2 thisisthe4mostexpensivemodel 3 thisistheoldestmodel 4 thisisthelightestmodel b a c c b1 b1 the costs the wasmadein the weighs 1580madein20070 23kg114 62 5 43mm 1330madein20060 21kg110 60 41mm 880madein20060 23kg117 64 4 53 8mm 880madein20060 23kg117 63 47mm 368madein20050 16kg110 67 42mm oldestmodel mostexpensivemodel 2006 0 16kg 3 580 lightestmodel b2 example big earth themoonorthesun s1 whichisthebiggest earth themoonorthesun s2 thesunisthebiggest b3 1 small abee abutterflyoramosquito 2 large theatlantic thepacificortheindianocean 3 valuable iron silverorgold 4 hot thenorthpole thesouthpoleorthegobidesert 5 heavy abear awhaleoranelephant 6 senior apoliceman aninspectororachiefinspector 7 fast arocket aplaneoratrain recordclass c c thecomparativeandsuperlativeofgood badandfar s1who inart good s2 2 s1who inart belindaordaisy good s2 s1who inart bad s2 4 s1who inscience daisyoreric bad s2 s1who inscience ericoralice good s2 hastheworstmarks hasbettermarks hasworstmarks eric daisy daisy belinda hasthebestmarks alice hasbettermarks 6 s1who incscience bad s2 7 s1whoselongjumprecordis belinda sormartin s far s2 8 s1whoselongjumprecordis far s2 c thecomparativeandsuperlativeofgood badandfar hasworstmarks farther thefarthest eric s eric s delinda s p52 speaking givingopinions agreeinganddisagreeing step4 additionalexpressionsofagreement yes indeed yes that s exactlywhatithink iagreetotally 100 completely that sjustwhatiwasgoingtosay ithinksotoo yes that sright howtrue p53 54 w