Module5AlessoninalabHowmuchdoyouknowaboutgeneralscience?Listenandchoose1.(a)Waterexistsasasolid,aliquidandagas.(b)Waterexistsasasolidandaliquidonly.2.(a)Whenyouheatametal,itexpands.(b)Whenyouheatametal,itcontracts.3.(a)Steelisamixtureofironandothersubstances.(b)Steelisamixtureofironandoxygen.4.(a)Two-thirdsoftheearth’ssurfaceiswater.(b)50%oftheearth’ssurfaceiswater.5.(a)Thedistanceofthesunfromtheearthis25,500kilometers.(b)Thedistanceofthesunfromtheearthis150,500,500kilometers.6.(a)Theearthis4.6millionyearsold.(b)Theearthis4.6billionyearsold.7.(a)Theearthistwiceaslargeasthemoon.(b)Theearthisforty-ninetimeslargerthanthemoon.Putthewordsinpairsorgroups.Putthewordsinpairsorgroups.contractairearthgasliquidoxygenmoonsolidexpandsuncontractairearthgasliquidoxygenmoonsolidexpandsun1234air-oxygencontract-expandearth–sun-moongas–liquid-solidPutwordsintherightplace.Putwordsintherightplace.electricityironmetalsteelairglasselectricityironmetalsteelairglassnaturalman-madebothelectricityironairsomemetalssteelglasssomemetalselectricitysomemetalsReadthepassagewiththequestion.WhyhasMarkbecomemoreinterestedinscience?Becausehehasmovedtoanewschoolwithgoodfacilitiesandteachers.Doyouenjoystudyingscience?Whyorwhynot?DissuasionWorkinpairstoretellthepassage.•AisMarkKendon.•BisaChinesestudentwhostudiesabroad.Forexample:B:What’syourfeelingaboutscience?A:Myfeelingsaboutsciencehavechanged.Ineverusedtoenjoyscience,butlastyearIchangedschools,andthescienceteachersatmynewschoolareexcellent.usedto(过去)常常……Iusedtogotoworkonfoot,butnowIdrivethere.Youusedtoseealotofher,didn’tyou/usedn’tyou?Languagepointsusedto/would二者均含有过去做某事的意义。(1)usedto暗含和现在的情况对比，强调现在不再那样了。(2)would指过去的习惯，常常做某事，不和现在进行比较。如：Heusedtobeadoctor,butnowalawyer.他过去是一名医生，现在是一名律师。Iwouldsitunderabigtreeinfrontofmyhouseasachild.孩提时我经常坐在我家房前的大树下。归纳拓展:(1)usedto表示过去经常发生的动作或存在的状态，暗含现在不再这样。(2)usedto的否定式有两种，即：usednottodo和didnotusetodo。疑问式也有两种，即：Used+主语+todo...?和Did+主语+usetodo...?(3)be/getusedtodoingsth.习惯于做某事beusedtodosth.被用来做某事beusedas...被用作……用use的适当短语填空Ibeamiddleschoolteacher,butIresignedintheyear1999.Nowmyofficeinthatschoolisusedastheschoolclinic,andIhavemynewjobalready.usedtogotusedto•TheNobelPrizeisthehighestscientificprizethereis,soweshouldbeveryproudofthat.beproudof以...自豪Iconfesstobeingproudofmyson'ssuccess.Hewasproudofwhathehaddone.priden.骄傲,自豪•I’mgoingtotrytogotoeitherMontrealorOttawaUniversity,asbotharesupposedtohavegoodPhysicsDepartments.besupposedto应该，认为必须，被期望Theyweresupposedtobehereanhourago.You'renotsupposedtosmokehere.Hewassupposedtogiveusadvice,butallhecameupwithwereairy-fairyideas.归纳拓展(1)suppose作及物动词，意为“认为，想”。后可接从句，可用作插入语，还可接不定式的复合结构。作及物动词时，意为“假定，设想”，有时还可用来提出建议，表示“……怎么样”，多用于祈使句，后面的从句多用虚拟语气形式shoulddo,有时should可以省略。(2)besupposedtodo表示“应该，应当”。不定式有时可用完成时或进行时。(3)suppose/supposing引起条件状语从句，相当于if的作用，意为“如果，假设”。活学活用(1)Everyonewearaseatbeltinthecar.A.issupposedtoB.supposestoC.issupposedD.supposedto解析：besupposedtodo...理应做……。句意为：“所有的人都应系上安全带。”A(2)_____everywordofhisweretrue,whatactionwouldtheteachertake?A.AsifB.WhileC.WhenD.Suppose解析suppose起到连词的作用，相当于if，引导状语从句。句意:“如果他说的话都是真的，老师会采取什么措施？”DMyparentsareastonished.•astonishedadj.惊讶的Iwasastonishedatthenewsofhisescape.astonishvt.使惊讶；使吃惊astonishingadj.惊人的astonishmentn.惊讶；令人惊讶的事物活学活用(1)Itisbelievedthatifareportis______,itwillcertainly______thereadersofthepaper.A.astonished;astonishedB.astonished;astonishC.astonishing;astonishD.astonish;astonish解析：考查astonished和astonishing的区别。根据语境：报告应该是“令人震惊的”，所以选C。C活学活用(2)Toour_____,hewasn’t_____atthe______newsatall.A.astonishment;astonish;astonishedB.astonishment;astonished;astonishingC.astonish;astonished;astonishingD.astonishment;astonishing;astonished解析：toone’s＋名词，所以排除C。其后考查其形容词用法，由于第二个空不能加“令人……”，第三个空则可以，所以答案是B。B
