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1、课时分层作业(九) [语言知识练习固基础]Ⅰ.单句语法填空1．Onecangainalotofexperiencewhiledoing(do)aparttimejob.2．Wedidn'tdaretomakeasoundforfearofwakingthesleepingbaby.3．ThePresidentrefusedtoanswer(answer)furtherquestionsonthesubject.4．Hisagewasevidentinhisgrayhairandwrinkled(wrinkle)face.5．Hearingthestrangesound,thechil
2、dwasshakingwithfear.6．Canceriscausedbychemicalsintheairwebreathe(breath),thewaterwedrink,andthefoodweeat.7．Thesceneofthetrafficaccidentiscoveredwithbloodandbrains,whichisextremelydisgusting(disgust)．8．Hewasputintoprisonbecausehemurdered(murder)anoldlady.9．Itisexpectedthatthebridgewillhavebeenco
3、mpletedbynextApril.10．Seeingterrifiedpeopletryingtogetoutofaburningbuilding,hestoodthere,terrified．(terrify)Ⅱ.选词填空forthefirsttime,burnout,contrastwith,throwoneselfon,againandagain1．It'snormalforyoutofeelnervouswhenyouwentontheplatformforthefirsttime．2．Hisactionscontrastsharplywithhispromises.3．
4、Thehotelwascompletelyburntout;onlythewallsremained.4．Ihaveexplainedagainandagain,butevennowtheydonotunderstand.5．Ifeltabittiredafteralongtrip.SoIthrewmyselfonthecouchandfellasleepsoon.[高考题型练习提能力]Ⅰ.阅读理解WhenEuropeansettlersarrivedinNorthAmerica,theybroughtEuropeandiseaseswiththem.Then,hugenumbers
5、ofNativeAmericansbegandyingfromsmallpox(天花)infection.Fivehundredyearolddocumentsrecordthistale,butnowscientistssaythey'vefoundotherevidenceburieddeepinsidehumancells.Inanewstudy，BrendanO'FallonandLarsFehrenSchmitzreportevidencefoundingenesthattheNativeAmericanpopulationdroppedbyhalfafterthearri
6、valofEuropeans.O'FallonstudiesgenesatARUPLaboratoriesinSaltLakeCity,whileFehrenSchmitzisascientistwhostudieshumankind,attheUniversityofGottingeninGermany.Cellsmakeupeverypartofthebody.Deepinsidealmosteverycellisalong，coiledmolecule(盘绕颗粒)calledDNA.GenesarepartsofDNAthatplayimportantrolesindeterm
7、iningone'slife.Geneshelpdetermineaperson'sappearance,suchasskincolorandheight,andalsoplayaroleinmanythingsyoucan'tsee,likethechanceofgettingadisease.Geneschangeovertime,andbyfollowingthesechangesscientistscanlearnaboutaperson'sanc
