必修4Module6课时作业(二十四)UnexplainedMysteriesoftheNaturalWorld自然界未解之谜Ⅰ.单项填空1．Therearestillquiteanumberofchildrenwhocannotaffordtogotoschool________poverty.A．insteadofB．butforC．duetoD．apartfrom2．________nopointinbeatingaroundthe’s________.A．It’s；comestraighttothepointB．There’s；cometothepointC．Thisis；gettothepointD．Thatis；reachthepoint3．Thebusinessmanclaimed________fromHarvard，whileinfact，heneverwenttocollege.A．tohavegraduatedB．tograduateC．havinggraduatedD．graduating4．SomeclassmateswereinfavourofMissLi’sopinionwhileotherswere________it.A．forB．toC．againstD．through5．Thepatientwas________oflosinghislifeandhadtobeoperatedonatonce.A．indangerB．inthedangerC．outofdangerD．outofthedanger6．ItwassnowingMaryfeltcold，soshestood________tohermother.A．closeB．closelyC．closedD．closing7．Itishopedthatthesediscoveriescan________theoriginsoftheuniverse.A．cometolightB．throwlightonC．cometolifeD．bringtolight8．They________allthedetailsoftheplantimeandagaintomakesurethattheprojectwouldgosmoothly.A．gotthroughB．wentthroughC．gotoverD．dippedinto9．Itistoolatetotreathis________meabouthisillnessearlier.A．musttellB．shouldtellC．mayhavetoldD．shouldhavetold10．Ifnoone________thelostbag，thepersonwhofounditcangiveittotheLostandFoundDepartment.A．claimsB．demandsC．requiresD．deserves11．Duringanearthquake，thegreatpartofdamageandlossoflifehavebeen________collapseofbuildingsandothereffectsratherthanfromthequakesthemselves.A．owingtoB．byreasonofC．onaccountofD．dueto12．Studieshaveshownthat45percentofreptilespeciesand24percentofbutterfliesinthesecountriesareindangerof________.A．dyingdownB．dyingawayC．dyingbackD．dyingout13．Maryactuallysawlungcancerkillherfather，whohadsmoked________sincehewasateenager.A．badlyB．seriouslyC．heavilyD．fiercely14．Hetriedhardtokeep________infaceofthepolicemen，butthesweatonhisforeheadgavehimaway.A．silentB．stillC．calmD．quiet15．—What’shappenedtoTom？Ican’tgetintocontactwithhim.—Idon’tknow.He________lost.A．musthavegotB．couldgetC．mightgetD．mayhavegotⅡ.阅读理解FormanypeopleintheUnitedStates，ArabAmericansareaninvisiblepartoftheArab-AmericansasacommunityhavemadesignificantcontributionstoAmericansocietyinfieldsrangingfromliteraturetopoliticstomedicine，manyAmericansknowverylittleaboutAmericansofArabdescent.ArabhistoryintheUnitedStatesgoesbacktothelate1800swhenlargenumbersofArabimmigrantsfirstbeganmakingtheirjourneytoalandknownsimplyas“Amreeka”．HistoriansgenerallydescribeArabimmigrationtoAmericaintwofirstwavetookplacebetween1860andfirstwaveconsistedofLebaneseandSyrian，andsomeEgyptiannewimmigrants，whowerepredominantlyChristian，cametoAmericainpursuitofbetterthedoomedTitanic，whichsetsailforAmericain1912，hadaboutahundredArabpassengersmajorityofArabAmericanstodayaredescendentsofthefirstwaveofimmigrants；theyarethethirdormoregenerationnowinAmerica.ThesecondwaveofimmigrantsfollowedaftertheSecondWorldWar，sparkedbypoliticalunrest(政治动乱)intheMiddlesecondwaveofimmigrantsconsistsofmainlyArabMuslimsandcontinuestothisday.ArabAmericansmakeup3millionofthepopulationintheUnitedStates，accordingtodemographers(人口统计学家)．Andcontrarytopopularbelief,64percentofthemarepercentofArabAmericansareUScitizens.ArabAmericanssurpassthenationalaverageinbotheducationandisimportantamongArab-Americans；82percenthavehighs...
