【精品】2017-2018学年高中英语北师大版必修2课件：Unit 4　Cyberspace 4.1（可编辑）.ppt

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1、2017-2018学年高中英语北师大版必修2课件：Unit 4Cyberspace 4.1单词注释导读诱思新西兰南部小岛风景如画,极富魅力,令人向往。满眼的绿色,触手可及的朵朵白云,令人陶醉其中。TheBeautifulSouthIslandofNewZealandNewZealandisanislandnationintheSouthPacificOcean.MadeupoftwomainislandsNorthIslandandSouthIsland,andagroupofsmallerones,NewZealandhasanamazingrangeofbreathtaking1scene

2、ry.单词注释导读诱思Polynesiansfirstsettledontheislandsabout800to1,000yearsago,namingtheislands“LandoftheLongWhiteCloud”.ThebeautifulandattractiveSouthIslandisoneoftheworldspremier2holidaydestinations.Asanislandofcharmingdiversity3andamazingattractions,thisidealdestinationoffersvisitorsromance,excitement,and

3、sceniccountrysideofMaoris.Theresnothingquiteliketheexperienceofswimmingwithdolphinsorwhalewatching.Youcanalsovisitmorenaturalwonderssuchasthehotspringsorjusttreatyourselftoajourneytothesnow-coveredmountains,andthebeaches.单词注释导读诱思Whereelsecanyougosurfing,skiing,snowboarding,sailing,swimmingatthebeach

4、,parachuting4,horseriding,cavingallwithinonehundredmilesandevenonthesameday?Also,dontforgettotrythebungeejumping,inventedandmadefamousrighthere.TheSouthIslandreallydoesoffersomethingforeveryone.FindyourselflookingoutfromtheheightsofthetoweringSouthernAlpsoneday,andthendriveacrossthenaturalbeautyofth

5、eflatplainsanother.YouwillbeastonishedbytheancienticeofWestCoastglaciersorgetinvolvedinnaturebytakingaboatinalakeorhikingoneofitsplentifulpathsinthewild.单词注释导读诱思2.premier/premI(r)/adj.首要的3.diversity/daIvstI/n.多样性;差异4.parachute/prut/v.跳伞5.issue/Iu/n.问题;争端6.venture/vent(r)/v.冒险行事单词注释导读诱思WhyistheSouthI

6、slandoneoftheworldsmainholidaydestinations?Andgivesomeexamples.Possibleanswer:Becauseitoffersvisitorsromance,excitement,andsceniccountrysideofMaoris.Thereyoucanswimwithdolphinsorgetawhalewatchingorgosurfing,skiing,snowboardingandsailingaswell.一二三四五一、由于科学的不断进步,我们的生活发生了日新月异的变化。明天的世界将会是什么样的呢?下面是一些关于未来的

7、预测,你认为这些预测能实现或会发生吗?1.Peoplewillbeabletobuy“housekits”containingabasichousestructure,withmoveable(可移动的)walls,doorsandwindows.2.Spaceholidayswilldevelop,buttheseholidayswontbeforeveryonebecausetheywontbecheap.Bytheendofthiscentury,therewillbeholidaycentresonthemoonwithleisurefacilities(休闲设施)forfamilie

8、s.一二三四五3.Paperwontexistinthefuture.Instead,therewillbee-paperwhichpeoplewillbeabletouseoverandoveragain.4.Ifthesunexplodes(爆炸),theearthisgoingtodisappear.Wewillhavetoexploretheuniverseandfindanotherhome.答案:略一二三四五二、根据英文释义和首字母提示写出本课生词1.oeasilysensed,seenorunderstood2.canillegal(非法的)activity3.atousevio

9、lence(暴力)totrytohurtorkillsb4.caconditionorplaceofgreatdisorder(混乱)orconfusion(混淆)5.ganincreaseinsize,number,value,orstrength6.ctohitanobject,causingdamage7.atohaveaninfluenceon8.dtobecomeimpossibletoseeobviouscrimeattackchaosgrowthcrashaffectdisappear一二三四五三、英汉互译1.findout2.inthefuture3.ontheInternet

10、4.anexperton.5.becauseof6.恶化7.各种各样的8.好像9.对感到悲观/乐观10.和连接发现将来在因特网上方面的专家因为getworseallsortsofasifbepessimistic/optimisticabout.beconnectedto一二三四五四、根据课文内容,选择正确答案1.FromParagraphOne,weknow.A.theInternetcameintotheworldin1980sB.moreandmorecomputerswillbeconnectedtotheInternetC.theInternetgrowsmorerapidlytha

11、nwecanimagineD.peoplewillloseinterestintheInternetsomeday2.SomeexpertsarepessimisticaboutthefutureoftheInternet.Theyareworryingthat.A.thegrowthwillslowdownB.itwillcostpeoplealotC.theworldwontbesafeD.theinformationontheInternetmaybewrongBC一二三四五3.PeterAndersonthinks.A.peoplewillbeabletoworkinavirtualw

12、orldB.televisionwilldisappearC.themailservicewilldisappearD.peoplecantbeabletoshopinavirtualshop4.WhichofthefollowingisNOTmentionedinthepassage?A.Shoppinginavirtualsupermarket.B.Studyinginavirtualschool.C.GettingentertainmentfromtheNet.D.Communicatingwithothersbychattingtools.AD一二三四五五、阅读The Future o

13、f Cyberspace,根据所读内容在表格中的空白处填入恰当的单词注意:每个空格只能填一个单词。connectedincreasing一二三四五Ideascrimeattack一二三四五Optimisticinformationentertainment/entertaineddisappearreality123467891051.In a group discussion,I am more likely to.在小组讨论中,我更可能(Learning To Learn)考点likelyadj.有可能的【高考典句】(2015课标全国卷)Newstudentsarenowawarethat

14、theyarelikelytoleaveuniversityupto15,000indebt.现在,新生都意识到他们将带着高达15,000英镑的债务离开大学。Theweatherisnotlikelytoclearupforafewdays.几天内天气不大可能会放晴。Itisnotlikelythathewouldcomeatthistimeoftheday.他不太可能这个时候来。Womenarelikelier/morelikelytoremembertheirroutesusinglandmarks.女性更倾向于使用地标来记忆她们的行程路线。12346789105Whatdoyouthin

15、kisthemostlikely/thelikeliesttimetofindhimathome?你觉得什么时候最有可能在家里找到他?归纳:likely在句中可用作表语或定语,用作表语时常接动词不定式或that引导的从句。likely的比较级和最高级有两种形式,分别为likelier,likeliest和morelikely,mostlikely。123467891051)阅读下面的句子,体会likely的词性和含义。Wewillmostlikelyseehimlater.我们很可能晚些时候会见到他。词性:副词含义:可能2)辨析:likely,possible和probableItislike

16、lythatheisintroublenow.=Heislikelytobeintroublenow.很可能他现在遇到麻烦了。Isitpossibletogetticketsforthegame?有没有可能拿到比赛的票?Itsquitepossiblethatsomeonepickedupyourbagbymistake.很有可能有人错拿了你的包。12346789105Itshighlyprobablethathewilltakeoverhisfathersbusiness.他极有可能接手他父亲的生意。Hissuccessispossible,butnotprobable.他获得成功是可能的,

17、但把握不大。归纳:这三个形容词都可表示“可能的”,其可能性的大小顺序为probable(十有八九)、likely(十有六七)、possible(十有三四)。likely可用人或物作主语,常用句式为:Itislikelythat.或Sb/Sthislikelyto.(注意:不能说Itislikelyforsbto.);probable表示主观上有根据的推测,作表语时不能用人作主语,常用句式为:Itisprobablethat.;possible指客观上潜在的可能性,常带有实际上希望很小的意味,作表语时不能用人作主语,常用句式为:Itspossibleto./that.。12346789105活学

18、活用语法填空1)Studiesshowthatpeopleare(likely)tosufferfrombackproblemsiftheyalwayssitbeforecomputerscreensforlonghours.同义句转换2)Sheislikelytoringmetonight.shewillringmetonight.3)Itispossibleforhimtofinishtheworkinonehour.Itispossibletheworkinonehour.likelier/morelikelyItslikelythatthathecan/willfinish123467

19、891052.focus mainly on the written text.主要注意文字。(Learning To Learn)考点focusvi.集中注意focuson集中于,关注【高考典句】(2015浙江卷)Toreadalinegraph,itsimportanttofocusonthepointsofintersectionratherthanthelinesegmentsbetweenthepoints.读线形图的时候,重要的是关注点的坐标,而不是点跟点之间的线。ImsotiredthatIcantfocus(onanything)today.今天我太累了,精神集中不起来。【高考

20、典句】(2016全国甲卷)Mostofusaremorefocusedonourtasksinthemorningthanwearelaterintheday.早上与白天其他时候相比,大多数人早上的时候会更加关注任务。123467891051)阅读下面的句子,体会focus的含义。(1)Youshouldfocusyourattentiononyourwork.你应该聚精会神地工作。含义:使集中(2)Ifyoufocusbrightsunlightondryleaveswithamagnifyingglass,theywillstartburning.假如你用放大镜将强烈的阳光聚焦于干叶子上,

21、它们便会燃烧起来。含义:使聚焦归纳:focus作及物动词时,也常与介词on连用,构成focus.on.结构,表示“将集中于”。123467891052)focus用作名词,意为“焦点,中心”。ThecoffeeshopisthefocusofsociallifeinFrance.在法国,咖啡馆是社交生活的中心。Bringtheobjectintofocusifyouwantagoodphotograph.如果你想拍一张好照片,把焦点对准物体。12346789105活学活用语法填空(1)(2016北京卷改编)Anxiousallthetime,Iwasunabletokeep(focus)for

22、morethananhouratatime.翻译句子(2)Thephotowasoutoffocus.(3)Anear-sightedpersoncannotfocusondistantobjects.(4)大家的眼睛都集中在她身上。focused这张照片焦距没有对准。近视的人无法把焦点对准远处的物体。Everyoneseyeswerefocusedonher.123467891053.What other predictions do you know from science fiction books or films that have come true?你知道还有哪些科幻小说或电影

23、中的预言实现了?考点cometrue(愿望、梦想等)实现Mylong-awaiteddreamcametruetheminuteyourfathercried,“Agirl!”在你父亲喊“是个女儿!”的那一刻,我期待已久的梦想实现了。Carryon,andyourdreamwillcometruesoonerorlater.继续,你的梦想迟早会实现的。归纳cometrue是一个不及物动词短语,它不可用于被动句中,表示“实现梦想”还可用realiseonesdream。Ihopehisdreamofbecomingapianistwillcometrue.=Ihopehewillrealiseh

24、isdreamofbecomingapianist.我希望他成为钢琴家的梦想可以成真。12346789105comeabout发生comeacross偶然遇到,不期而遇comeon(用于催促,鼓励)快点,加油;(用于不相信,不同意或生气)得了吧,算了吧;取得进步,取得进展comeout出现,显露,结果是;出版,发行(不用于被动语态)comeupwith想出,提出(想法或计划)whenitcomesto(doing)sth谈到(做)某事时12346789105活学活用用come构成的短语的适当形式或realise的适当形式填空1)Mydreamatlast.2)Shemadegreateffor

25、tstoherdream.3)Pleasetellmehowtheaccident.Iamstillinthedark.4)Letmehelpyoucrossthestreet.!Imnotthatold.单句改错5)Ihopemydreamofbecomingadoctorwillbecometrueoneday.cametrue/wasrealizedrealisecameaboutComeon去掉be123467891054.Peter Taylor finds out how computers and the Internet are going to affect our live

26、s.彼得泰勒发现计算机和互联网将如何影响我们的生活。考点一findout找出,发现,查明【高考典句】(2015重庆卷)WemustfindoutwhenKarliscoming,sowecanbookaroomforhim.我们必须弄清卡尔什么时候来,以便为他预订房间。【高考典句】(2016浙江卷)ImadeupmymindIwouldfindoutwhatwasgoodinmypresentsituation.我下定决心要弄清楚就我目前的情况而言什么是好的。12346789105【高考典句】(2016全国甲卷)Fiveyearsago,whenItaughtartataschoolinSea

27、ttle,IusedTinkertoysasatestatthebeginningofatermtofindoutsomethingaboutmystudents.五年前,当我在西雅图的一所学校教授艺术时,我用Tinkertoys作为学期之初的测验,以了解我的学生。12346789105辨析:find与findoutIvefoundthebookyouwant.我已找到了你想要的那本书。Pleasefindoutthetruthassoonaspossible.请尽快把真相搞清楚。归纳:find意为“找到,发现”,通常表示无意找而发现,可接复合宾语,通常指找到某个具体的东西或人;findout

28、通常指经过努力去“找出,发现,查清”,不能接复合宾语,通常指查明某个真相,发现某种规律等抽象的东西。12346789105考点二affectvt.影响【高考典句】(2016北京卷)Thisaffectstheirnervoussystemsandabilitytoproducebabybirds,andcanleadtokidney(肾)failureanddeath.这会影响它们的神经系统和生育能力,并可能导致肾衰竭甚至死亡。12346789105辨析:affect和influenceThechangeinclimatemayaffectyourhealth.气候的变化可能会影响你的健康。W

29、ebecamethebestfriendsandheinfluencedmedeeply.我们成了最好的朋友,而他深深地影响了我。归纳:affect和influence同义,但affect着重指一时的“影响”,通常指有形的力量造成的物质或生理上的影响;influence则往往指较长时间的、潜移默化的影响。12346789105活学活用语法填空(1)(2016浙江卷改编)Whatkindofeducationcanbe“meaningful”toyoungpeople(affect)byconflict?单句改错(2)Pleaselookupthewordinthedictionaryandfi

30、ndwhatitmeans.(3)Thisproblemhasalsoaffectedontheautomobileindustry.affectedfind后加out去掉on123467891055.In the last thirty years,the Internet has grown rapidly.近三十年来,互联网发展迅速。考点rapidlyadv.快,迅速地Itcanrunacrosswaterforadistanceofseveralmeters,avoidinggettingwetbyrapidlyhittingthewaterssurfacewithitsfeet.它可

31、以掠过几米远的水面,通过用脚掌快速拍击水面来避免弄湿身体。Selectingamobilephoneuseisnteasybecausethetechnologyisdevelopingsorapidly.挑选一部手机并不容易,因为技术发展得太快了。12346789105辨析:rapidly,fast和quicklyHewasmovingrapidlyaroundthehouse.他快速地在房屋周围走动。Thiscompanyisfastbecomingamajorexporterofcomputersoftware.这家公司正很快成为计算机软件的重要出口商。Thesummervacation

32、alwaysseemstogosoquickly.暑假好像总是过得飞快。归纳:rapidly指运动本身,侧重速度,所指动作可能是短暂的,也可能是持续的;fast常指人或物持续地高速运动,强调运动的方式;quickly指瞬时动作,强调动作敏捷迅速,也指匆忙的行为,而不指速度。12346789105活学活用语法填空1)ThepopulationinsomeAfricancountriesisincreasingso(rapid)thatthewholeworldisconcernedaboutit.翻译句子2)Heheardrapidstepsonthestairs.3)Sheenteredthe

33、roomandchangedherclothesrapidly.rapidly他听见楼梯上急促的脚步声。她进了屋子,迅速地更换了衣服。123467891056.Already,users can buy books,find out about holiday offers,book tickets,and get all sorts of information from the Internet.(互联网)使用者已经可以在网上购书,查找节日特惠,订票,并从网上获取各种各样的信息。考点offern.特价Thespecialofferisvaliduntiltheendofthemonth.这

34、个特价优惠月底前有效。Iboughtthesecupsatthesupermarkettheyreonofferthisweek.我在超市买的这些杯子它们本周特价出售。123467891051阅读下面的句子,体会offer的含义。(1)Dontalwaysrefusehisoffer;youshouldacceptitbravely.不要总是拒绝他的好意,你应该勇敢地接受它。含义提议(2)Wevedecidedtoaccepttheiroffer.我们决定接受他们的报价。含义出价2offer还可用作动词,表示“主动提出,自愿给予;提供,供应”。Lucyhadofferedherservices

35、asaguide.露西曾表示愿意当向导。12346789105【高考典句】(2016四川卷)Theselocalcitizensnowhavetobalancetheirtraditionalself-supportinghuntinglifestylewiththelifestyleofferedbythemodernFrenchRepublic,whichbringswithitnotonlynecessarystatewelfare,butalsoalcoholism,betrayalandevensuicide.现代法兰西共和国的生活方式给这些土著居民带来的不只是基本的国家福利,还有酗

36、酒、背叛、甚至自杀的不良风气,这些土著居民现在不得不把这种现代生活方式和传统的自给自足的狩猎生活方式进行平衡。12346789105活学活用语法填空(1)Peopleliketoshopinthesupermarketbecausetheyareinterestedinavarietyofgoodsofferandcanbuywhatevertheywant.(2)(2016全国甲卷改编)WhatdoesBill(offer)todoforDorothy?(3)(2016浙江卷改编)Viewingchildhooddevelopmentasascientificinvestigationthr

37、owslightonhowchildrenlearn,butitalso(offer)aninspiringlookatscienceandscientists.完成句子(4)他在公交车上把位子让给了一位老太太。Heonthebustoanoldlady.onofferofferedhisseatoffers12346789105(5)在北京有人要给我一份工作。IinBeijing.willbeofferedajob123467891057.She also believes that,in the future,we will get entertainment from the Net a

38、nd that television will probably disappear.她还相信,将来我们可以在网上进行娱乐活动,而且那时电视很可能不复存在。剖析believe后接由and连接的两个由that引导的宾语从句;第一个that后的inthefuture作时间状语。考点disappearvi.消失12346789105【高考典句】(2015湖北卷)Withinacoupleofdaystrulyterribledaysforsomeastronautsbrainslearntoignorethepanickysignalsfromtheinnerear,andspacesickness

39、disappears.几天之内,对一些人来说应该是很糟糕的几天,宇航员的大脑会学会忽视来自内耳的痛苦信号,太空症也会就此消失。Hisangersoondisappeared.他的怒气一会儿就消了。Theproblemwontjustdisappear.问题不会就这样不了了之的。12346789105阅读下面的句子,体会disappearance的含义。Atfirstnobodynoticedthechildsdisappearance.起初谁都没有注意到小孩不见了。含义:消失;失踪12346789105活学活用语法填空1)Mydictionary(appear)frommydesk.Havey

40、ouseenit?2)Onedaytheseproblems(disappear),sodontworry.3)Suddenly,thepaininmyback(appear)andIcouldjumpagain.4)His(disappear)couldmeanonlyonething:someterribleharmhadcometohim.hasdisappearedwilldisappeardisappeareddisappearance123467891058.Some experts see our future in virtual realitythe use of compu

41、ters with sounds and pictures that make you feel as if you are in a real situation.有些专家看到了虚拟现实中我们的未来(虚拟现实)是计算机通过声音和图像模拟现实,以使人感到仿佛置身于一个真实的空间。剖析破折号后的内容theuse.situation是对ourfutureinvirtualreality的解释说明和补充。其中that引导定语从句,修饰soundsandpictures;feel.是省略to的不定式短语,作make的宾语补足语。12346789105考点asif好像,仿佛OnceIwasoutofhe

42、rlife,itwasasifIhadneverbeenborn.一旦我走出她的生活,就好像我从没出生过。Whenapencilispartlyinaglassofwater,itlooksasifitwerebroken.当把一支铅笔的一部分放置于一杯水中时,它看上去就像是断了一样。Thelittlewhitewoodenhousesmellsasifithasntbeenlivedinformanyyears.那间白色的小木屋散发出来的气味让人觉得好像好多年没人住了似的。123467891051asif从句用虚拟语气的情况是当说话人认为句子所述的是不真实的或极少有可能发生或存在的情况时。从

43、句虚拟语气动词时态的形式如下:(1)如果从句表示与现在事实相反,谓语动词用过去式。Youlookasifyoudidntcare.你看上去好像并不在乎。(2)从句表示与过去事实相反,谓语动词用“had+过去分词”。HetalksaboutRomeasifhehadbeentherebefore.他说起罗马来好像他以前去过似的。12346789105(3)从句表示与将来事实相反,谓语动词用“would/could/might+动词原形”。Heopenedhismouthasifhewouldsaysomething.他张开嘴好像要说什么。2同义短语:asthough活学活用语法填空1)Hekep

44、tcalmasifnothing(happen).英汉互译2)IfeltasifIhadbeenbornagain.3)他说起话来好像他是国王。hadhappened我有一种再生之感。Hetalksasifhewereaking.123467891059.It is obvious that this destruction will become more dangerous in the future.很明显,这种破坏在将来会变得更加危险。剖析it为形式主语,真正的主语是that引导的主语从句。考点obviousadj.明显的,显而易见的Therescuedwoodcottages,fit

45、tedbyhandinthelateeighteen-hundreds,areanobviousexample.那些被救出的于18世纪后期手工建成的木别墅是一个明显的例子。12346789105【高考典句】(2016天津卷)Thesolutionisobviousthoughperhapsnoteasytoapply:alwayshandlethemostdifficultjobfirst.虽然可能不容易应用,但解决方案显而易见:总是先处理最困难的工作。Itisobvioustomethatyoureunhappyinyourjob.我很清楚你的工作不如意。Hismannermadeitobv

46、iousthathedidntlikeher.他的行为明确地表明他不喜欢她。归纳obvious在句中可用作定语、表语和宾语补足语,常用于句型Itsobviousthat.。12346789105阅读下面的句子,体会obviously的词性和含义。(1)Heisobviouslyamanofveryhighintelligence.他很明显是个非常聪明的人。词性副词含义明显地(2)Obviously,sheneedshelp.她显然需要帮助。词性副词含义显然;明显12346789105活学活用完成句子1)请你为我看一遍论文,看里面是否有明显的错误,好吗?Wouldyoupleaselookthr

47、oughthepaperformeandseeifthereare?语法填空2)Itisobvioustothestudentstheyshouldgetwellpreparedfortheirfuture.翻译句子3)Obviously,thetelevisionhasbothadvantagesanddisadvantages.anyobviousmistakesthat显然,电视有优点也有缺点。1234678910510.语法:will和be going to考点一will用于表示预测表示说话人认为、相信、希望、假定、害怕要发生的事情。Iexpectitwillbecold.我想天气会冷

48、的。Imsuretomatoeswillbeexpensive.我敢肯定西红柿会很贵。考点二begoingto用于表示预测begoingto结构可以表示说话人确信如此。虽然通常不指出时间,但是说话人所预期的动作多在不久后或马上就要发生。Lookatthosedarkclouds!Itsgoingtorain.瞧那些乌云!快要下雨了。Listentothewind.Weregoingtohavearoughcrossing.听这风声。我们横渡时一定很难。12346789105考点三begoingto和will的区别begoingto意指有迹象表明某件事将要发生,will则意指说话人认为或相信某件

49、事将要发生。begoingto通常用来表示马上就要发生或相当快就要发生的事情;而will不指明任何具体时间,可以指遥远的将来。如:Theliftisgoingtobreakdown.电梯就要出故障了。Theliftwillbreakdown.电梯将会发生故障。第一句意指电梯正在发出奇怪的声音或运行失常,第二句指将来某一时刻电梯要出故障(也许因为我们老是让它超载,或因为电梯本身不耐用)。12346789105活学活用语法填空1)DoyouthinkMumandDad(be)late?No,SwissAirisusuallyontime.2)“Whatdoyouwanttobe?”askedMrs

50、Crawford.“Oh,I(be)thepresident,”saidtheboy,withasmile.3)Weareconfidentthattheenvironment(improve)byourfurthereffortstoreducepollution.4)Whattimeisit?Ihavenoidea.Butjustaminute,I(check)itforyou.willbewillbewillbeimprovedwillcheck12346789105翻译句子5)看天空乌云密布,要有暴风雨。6)没人能判定我们队是否会获得金牌。Lookatthedarkcloudsinth