冀教八下英语Unit 5《Lesson 2》课件

Lesson2Unit5Greatinventions1Watchthevideoandanswerthequestions.AHowmanyinventionsarementionedinthevideo?BWhichinventiondoyouthinkisthemostimportantforyouandwhy?2Readthepassageandmatcheachpartwithitsmainidea.Longago,peopledidnottravelfarfromhome.Infact,intheearlydays,apersonmightlivetheirwholelifeinonevillageandnevertravelfar.Thefirstimportantinventionintravelwasthewheel.Andthencamethewagons.Humansbegantohavethepowertomoveandcarrythingsacrosslongdistances.介词短语作后置定语Thenextwasthetrain.Afterthetraincametheinventionofcars,buses,trucks,andothermeansoftransportation.Humansandgoodswereabletotravelfartherthaneverbefore.Boatsandshipsprovidedanotherimportantwayoftravelling.Theinventionofthecompasshelpedpeopleexploremoreplaces.Andcanalsystemsmadefastwaterwaytransportationpossible.beabletodosth.能够做某事Modernmeansoftransportation,suchashigh-speedtrainsandairplanes,helppeopletravelfasterandfarther.Eco-friendlyelectriccarsarecommonandself-drivingcarsareindevelopment.Peoplecaneventraveltospaceinspaceships.Whoknowswhatthefutureholds?长难句分析：这是一个简单句。主语是Modernmeansoftransportation，suchashigh-speedtrainsandairplanes是一个插入语，用来列举具体的现代交通方式。谓语是help，宾语是people，travelfasterandfarther是宾补，表示“出行得更快、更远”。beindevelopment正在开发中Thedevelopmentoftransportationhasmadepeople‘stravelmucheasierandfaster.Everyinventionisasymbolofhumancreativity.Let’senjoythesedevelopmentsandworkformoregreatthingsinthefuture.象征着Whatisthemainideaofthispassage?_______A.Tointroducethehistoryoftransportationinventions.B.Tocomparedifferenttypesoftransportation.C.Toexplainhowtransportationmakespeople’slifeeasier.D.Todiscussthefutureoftransportation.A3Readandcompletethepassage.A.Thetrainallowedmorepeopletotravelfartherthaneverbefore.B.Peopledidn’ttravelfarfromhome.C.High-speedtrainshelppeopletravelfasterandfarther.D.Peoplecouldmoveacrosslongdistances.WhenIwasyoung,mostofthepeopleusedbicyclestotravel.______IfIwantedtogosomewherefarther,Istillhadtowalkorcycle.Thencamebuses._______IwasexcitedthefirsttimeItookabus.Itwasfastandcouldtakemeoutofthevillage.ThenItravelledtoourcapitalcitybytrain!_______Intheearly1990s,ittookmehalfadaytogotoBeijingbytrainfromShijiazhuang.Butnowthehigh-speedtrainsonlytakeaboutonehour._______Ifyouaskmewhathaschangedmylife,that’sagoodexample.BDAC思考：Howhastransportationchangedpeople’slivestoday?High-speedtrainsallowpeopletotravelbetweencitiesinashorttime.Forexample,travellingfromBeijingtoShanghaibyhigh-speedtrainonlytakesabout4.5hours,whichwasimpossibleinthepast.(答案不唯一)4Whattransportationdoyouthinkwillappearinthefuture?Shareyourideaswithyourpartner.1power/'paʊə(r)/n.能力；权力；电力v.驱动；推动(教材P60)·Shehasthepowertosolvecomplexproblems.她有解决复杂问题的能力。·Windpowerisbecomingmoreandmorepopular.风能正变得越来越受欢迎。·Thenewplaneispoweredbyelectricengines.这架新飞机由电动引擎驱动。探究一核心单词power的一词多义：(1)作不可数名词，意为“能力；权力”，指人、组织或国家的支配力、影响力。(2)作不可数名词，意为“能；电力”，指物理能量(如电力、动力)或机器运转的能量。常用搭配：electricpower电力；powersupply电力供应；solarpower太阳能。(3)作动词，意为“驱动；推动”，指机器、能源等为某物提供动力使其运转。常见搭配：bepoweredby由……驱动相关词汇：powerfuladj.强大的；力量大的2speed/spiːd/n.速度；速率v.加速；促进(教材P60)·Thespeedoflightisabout300,000kilometerspersecond.光速约为每秒30万千米。·Thetrainreachedatopspeedof350km/h.这列火车达到了每小时350公里的最高速度。·Weneedtospeedupifwewanttocatchthebus.如果想赶上公交车，我们得加快速度。speed

的一词多义：(1)作名词，意为“速度；速率”，指物体运动、行进或发生的快慢程度。常见搭配：athigh/lowspeed以高/低速speedlimit限速atthespeedof以……的速度(2)作动词，意为“加速；促进”，表示移动速度加快。speedup(使)加速。相关词汇：(1)speedyadj.迅速的；快速的(2)speedilyadv.迅速地3common/'kɒmən/adj.普通的；共同的(教材P60)·Wehavecommontopicstotalkabout.我们有共同的话题可谈。·Incommonwithmanypeople,heprefersclassicalmusictopop.和许多人一样，他喜欢古典音乐胜过流行音乐。·Hehasnothingincommonwithhisfather.他和他父亲无共同之处。common

作形容词，意为“普通的；常见的；共同的；共有的”。还可作可数名词，表示“公共用地；公地”。常见用法：(1)incommon共有(2)incommonwith...和……一样(3)have...incommonwith...和……在……方面有共同之处infact实际上(教材P60)·Infact,itisveryhot.事实上，天很热。·Heisnothappy,andinfact,heisverysad.他不高兴，确切地说，他很伤心。·Idon’tlikecoffee.Asamatteroffact,I’venevertriedit.我不喜欢咖啡。事实上，我从来没喝过它。·ShespeaksFrench,andinaddition,sheknowsSpanish.她说法语，此外她还懂西班牙语。探究二核心短语infact的一词多义：(1)意为“事实上；实际上”，为副词短语，在句中作状语。一般放在句首，也可放在句中作插入语，但前面要用逗号隔开。其中fact作名词，意为“事实”。同义短语：asamatteroffact事实上；其实(2)意为“确切地说”。Whoknowswhatthefutureholds?谁知道未来会怎样？(教材P60)分析结构:这是一个含宾语从句的特殊疑问句。Whoknows是主句，疑问代词Who作主语，knows是谓语动词。宾语从句whatthefutureholds由what引导，作knows的宾语。what在从句中作宾语，指代“发生的事”。thefuture是从句中的主语，holds是从句中的谓语。探究三核心句式·Nobodyknowswhatwillhappeninthefuture.没有人知道未来会发生什么。·Thepoliceofficersto