复习精品课件：必修2 Unit3 Computers（人教新课标.ppt

Unit3Computers,词汇过关,短语习得,重点句型,目标解读,1.重点单词拼写,词汇过关,1)Wehavealotinc,soweoftenhavealottotalkabout.,【答案】common,2)Manyofthestudentstaketheircintotheclassroomtohelpthemdosomemathswork,whichisnotpreferredbytheteachers.,【答案】calculators,3)Oncehewasconsideredtobes,forhecouldntworkoutthesimplestnumbers.,【答案】simpleminded,4)Robotscanalsobecalledai.,【答案】artificial,intelligence,5)Everythinghasitsaandd.,【答案】advantages,disadvantages,6)Agoodcwhenfacingdifficultiesistostaycalm.,【答案】choice,7)P,Idwithyouonyourplan.,【答案】Personally,disagree,8)Ineedsomemtomakeadress.,【答案】materials,词汇过关,9)Oncehewasthecofourfootballteam.,【答案】coach,10)Itsdangerousforayoungladytowinthestreetlateatnight.,【答案】wander,2.重点词词形变换,词汇过关,Theisamachinewhichcanhelpusdoalotof.(calculate),【答案】calculator;calculating;calculations,2)Nowadaystheofcomputersimprovesveryfast.Manyproblemshavebeensolvedbythe.(technology),【答案】technology;technological;technologist,3)Theuseofatomicenergywillthelivesofcominggenerations.Itwillbringchangesanditisconsideredoneofthegreatestinthiscentury.(revolution),【答案】revolutionize;revolutional;revolutions,4)Weweresurprisedthatshewasinignoranceofthecomingcar.(total),【答案】totally;total,5)Althoughhewasnottobeaboyoflittle,heansweredthequestion,whichinfactshowedthathewasthanwethought.(intelligence),【答案】intelligence;intelligently;intelligent,6)Thebabyweighed15poundsatsothatsomerelativesjokedthathewasforjudo.(bear),【答案】birth;born,词汇过关,7)Ifyoucantakefullofthemistakesmadebyyourrivalsandavoidyourown,itwillbeforyourcompetition.(advantage),8)Thereseemednotmuchtobetweenthosetwo,buthestillmadeacareful.(choose),【答案】choose;choice,9),Ithinkitishismatter.Wedbetternotinterfereinit.Wearenotthatsortof.(person),【答案】Personally;personal;persons,词汇过关,10)Youhavedoneusefulandwork.Youhaveanewwaytodoit.Whata.(create),【答案】advantage;disadvantages;advantageous,【答案】creative;created;creation,短语习得,atechnologicalrevolution技术革命artificialintelligence人工智能beginas作为开始asimple-mindedman一个头脑简单的人servethehumanrace为人类服务dealwith处理inmyopinion在我看来publicopinion公众舆论sharearoomwith与共居一室connectwith与有关goby（从旁）走过afterall毕竟withthehelpof在的帮助下,1.短语积累,短语习得,makeup编造，化妆watchover看守，监视onceayear一年一度makeadecision做出决定buildingmaterials建筑材料infact事实上inaway在某种程度上bringsomethingintoeffect使某物生效,2.从上面列举的短语中选择适当的，填入下面的空格中,1)Youshouldnttreathiminsuchacruelway.heisyourbrother.,【答案】Afterall,2)Dontanyexcuse.Iwontlistentoit.,【答案】makeup,3)Imsureourteacherwecansolvethisdifficultproblem.,【答案】withthehelpof,4)Givehimanotherchance,please.Heisstilltooyoungtothesituation.,【答案】dealwith,5)Onceyou,youshouldntchangeitagain.,【答案】havemadeadecision,6)Bruckcouldntsendanymessageoutoftheyard,becauseaguardhimallthetime.,【答案】waswatchingover,短语习得,7),youshouldapologizetohimforthat.Ofcourseitisonyoutodecide.,【答案】Inmyopinion,8)Itisnotrighttosayhecheatedintheexam.heonlypickedupabookfallenontheground.,【答案】Infact,9)Youareresponsiblefortheaccident.Ifyoudidntlendhimthemotorbike,hewouldntbeabletogoout.,【答案】inaway,10)Withtime,hecameoutfromthesadness.,【答案】goingby,短语习得,重点句型,1.AndmymemorybecamesolargethatIcouldntbelieveit!(P18)so.that.和sothat引导的结果状语从句Heissocleverthathecananswerallthequestionsbyhimself.他很聪明，结果他能独自回答完这些问题。Hegotupverylatesothathemissedtheearlybus.,即时强化练习：翻译下列句子：1)他工作很努力，能按时完成这项工作。2)我们起得这么早，结果赶上了第一班火车。3)街上人这么多，我们不得不等一会。,重点句型,【答案】1)Heworkssohardthathecanfinishtheworkontime.2)Wegotupsoearlyastocatchthefirsttrain.=Wegotupsoearlythatwecaughtthefirsttrain.=Wegotupearlysothatwecaughtthefirsttrain.3)Therearesomanypeopleinthestreetthatwehavetowait.2.Thereweretimeswhenmysizewastotallychanged.(P18)Thereweretimeswhen从句。有时候ThereweretimeswhenIfeltalittlerebelliousandjustwantedtorunawayfromit.有时候我感到有些反叛只想逃避。,即时强化练习：翻译下列句子：1)有时候Brian会去拜访他爷爷。,重点句型,2)有时候我当时只有10岁的姐姐不得不照顾我们。,【答案】1)ThereweretimeswhenBriancalledonhisgrandpa.2)Thereweretimeswhenmysisterwhowas10atthetime,hadtolookafterus.,1.Discusswhattheyhaveincommon.(P17)(have)incommon(with)1)与有共同处,和一样Theyarebrothers,buttheyhavenothingincommon.Theirviewshavemuchincommonwithmine.2)incommon公用,共有Realfriendsshouldhaveeverythingincommon.Mr.andMrs.Smithownthestoreincommon.【词汇网络】“in+名词”表示“处于某种状态”的短语：inprogress在进行中inaction在行动中inastonishment吃惊的,目标解读,inbadmood心情不好inbadtemper心情不好，生气inbed在睡觉inblossom/bloom在开花inchains在囚禁中incharge看管inchurch做祈祷inclass在上课ingoodcondition健康情况良好inconfusion在混乱中inanxiety焦虑的incontrolof控制inneedof需要,目标解读,indanger有危险indebt负债indemand有需求indespair绝望的indispute在争论indoubt怀疑infearandtrembling提心吊胆infullblossom开着花ingoodhealth身体好inhorror恐惧inhospital住院inoperation在运转inorder状态良好,目标解读,inpeace和平地inpower掌权inpractice在实践中inprocess在进行中inquestion正被讨论inretirement退休insecret秘密insilence沉默insorrow悲伤instock有库存instore储藏着insurprise吃惊inadilemma处于进退两难的境地,目标解读,inahurry急急忙忙inanemergency处于紧急情况中inhighspirits情绪高涨intears流着泪inruins成为废墟2.Whydoyouthinkso?(P17)1)so可用在think，believe，expect，hope，beafraid，say，tell，imagine，suppose等表示看法、意见的词语之后，用来替代句中充当宾语的that分句。如：“Doyouthinkitwillrain？”“Yes，Ithinkso”“你认为会下雨吗？”“是的，我想是这样。”否定用法时，有两种表示方法：,目标解读,“主语donot动词so”与“主语动词not”“Isitgoingtorain？”“Idontexpectso/Iexpectnot.”“天要下雨吗？”“我希望不下。”【特别提示】think的否定式常用：Idontthinksohope或beafraid应该用：IhopenotImafraidnot“Areweontime？”“Imafraidnot”“我们准时到了吗？”“恐怕没有。”2）so和not还可用在say及“tell宾语”之后，如：Tomsaidso汤姆这样说的。Miketoldmeso迈克这样告诉我的。3）so（not）可用来代替if后面的从句。如：Hasthelettercome？Ifso，readit，please来信了吗？如果来了，请读一读。,目标解读,4）分句替代词not，还可以和perhaps，possibly，probably，certainly，surely等情态副词搭配，构成带有情态意义的简略答语。如：“Willhecome？”“Perhapsnot.（Perhapshewillnotcome.）”“他要来吗？”“也许不会来。”5)在be，appear，become，get，keep，seem，prove，turn等系动词之后，替代前面已经提到过的用作表语的形容词或名词。例如：Iwasnotsatisfied,butItriedtoappearsotopleasehim.我并不满意，但是为了让他高兴，我尽量显得很满意。3.Taketurnstomaketheideasasinterestingorlivelyasyoulike.(P21)turn既可用作及物动词、不及物动词，又可用作连系动词。1）turn作及物动词时，意为“使转动；翻转”，后接名词或代词。如：,目标解读,Tomturnshishead.汤姆把头转过去。Itseasytoturnthistap.这水龙头好拧。2）turn作不及物动词时，意为“转弯；转身”。Sheturnedandwalkedbacktoherhouse.她转身走回家。Thewheelsofthecarbegintoturn.汽车的轮子开始转动。3)turn作连系动词时，意为“变得；成为”，一般通过改变状态或形式（如：变颜色、变质、变味等），而成为完全不同的事物。后面一般接形容词作表语。如：Themilkturnedsourintheheat.牛奶在高温下变酸了。Theweatherturnedcold.天气变冷了。4）turn还可用作名词，意为“转动；机会；旋转”。Hegavethehandleafewturns.他把那个把手转了几下。Itismyturntoplay.该轮到我玩了。,目标解读,【一句巧记】Itsyourturntoturntheappleturningredattheturnbyturns.【词汇网络】turnsthon意为“打开（电灯、电视、收音机、自来水等）”；turnsbon使兴奋，使刺激turnsthoff意为“关上；关掉（电灯、电视、收音机、自来水等）”；turnsboff使不喜欢，讨厌或厌恶turnsthdown意为“关小；调低”。turnsbdown拒绝：拒绝某人turnup表示“出现”turnout表示“结果”turntosbforhelp向某人求助taketurnstodo/atdoing或dosthbyturns都表示“轮流做某事”的意思。Itsonesturntodo.表示“轮到某人做某事。”,目标解读,4.Infact,Ilooklikeonetoo.(P22)one在这里应该看作是“a+名词”结构中省略了与前面相同的名词，但因为a不能单独使用，因此把a变成one。Acakemadeofwheatcostslessthanonemadeofrice.（oneacake）句子中出现相同的名词时的一些替代用法：one：替代前面出现的单数可数名词，但前面一定有限定词；MychilddoesntlikethisbookShowheramoreinterestingoneones：替代前面出现的复数可数名词，但前面一定有限定词；Thenewdesignsaremuchbetterthantheoldones.新的图案比旧的好多了。that：替代前面出现的单数可数名词，但后面一定有修饰语；Illtaketheseatnexttothat(=theone)bythewindow.我坐在窗口的那个座位旁边。,目标解读,those：替代前面出现的复数可数名词，但后面一定有修饰语；Todayscomputersareofmuchgreaterdifferencefromthose(=theones)usedinthepast.今天的计算机和以前的大不相同。it：替代前面出现的单个事物；Myfatherboughtabikeandgaveittome.我父亲买了一辆自行车，把它给我了。them：替代前面出现的复数事物。Whenyouhavegotsomeapples,youshouldsharethemwithothers.【特别提示】1）当替代词one或ones在形容词比较级、最高级以及某些限定词如this，that,which和序数词等之后，可以省略。Thisbookismuchbetterthanthat（one）,目标解读,2）“a+名词”=one“a+修饰词+名词”=a.oneIdontlikethisbook.Pleasegivemearedbook.=aredoneIdontlikethisbook.Pleasegivemeabookwiththickcover.=one3）除了that/it外，其它几个词都不能替代不可数名词。5.Inaway,myprogrammerislikemycoach.(P23)inaway：用一种方法；从某种程度/某种角度来说Weshouldsolvetheprobleminawaywearemostfa