课时作业(八)CulturalCorner&WritingⅠ.单词拼写1．Therewasn'tenough________(证据)toprovehimguilty.2．Wehavean________(紧急的)needforhelp.Wearerunningoutoffood.3．Sheisalways________(抱怨)aboutsomething.4．Theshadytreesprovide________(保护)againsttheburningraysofthesun.5．Shehasn'tbeenseenfordaysandweare________(担心)forhersafety.6．The________(气氛)changedassoonasshewalkedin.7．Anunhappyhome________(环境)canaffectachild'sbehavior.8．Measureshavebeentakentocleantherivers________(被污染的)withchemicalwastefromfactories.9．Yourideais________(绝对地)impossible.10．Thereisa________(主要的)problemwithparkinginBeijing.Ⅱ.单项填空1．Scientistsareconvinced________thepositiveeffectoflaughter________physicalandmentalhealth.A．of；atB．by；inC．of；onD．on；at2．Shewas________andwantedtoget________details，becauseherhusbanddidn'tcomebackallthenight.A．curious；fartherB．eager；moreC．urgent；furtherD．hasty；less3．(2013·绵竹高一调研)Thoughtworkingoutside，heisalways________abouthisagingmotherathome.A．satisfiedB．concernedC．pleasedD．excited4．—YouareMr.Zhang，aren'tyou?—________.A．AbsolutelyB．NaturallyC．NormallyD．Completely5．Wegivedogstime，spaceandlovewecanspare，and________，dogsgiveustheirall.A．inallB．infactC．inanutshellD．inreturn6．(2013·广安高一质检)Unlessmyroomiswarmertonight，I'mgoingto________tothehotelmanager.A．argueB．regretC．complainD．pretend7.Whatshallweuseforpowerwhenalltheoilintheworldhas________？A．givenoutB．putoutC．heldupD．usedup8．While________somemagazineslastweekend，IfoundthisphototakenwhenIwasachild.A．lookingthroughB．lookingupC．lookingafterD．lookingout9．SomeofyoumayhavefinishedUNITONE.______，youcangoontoUNITTWO.A．IfyoumayB．IfyoudoC．IfnotD．Ifso10.—Areyousatisfiedwithhisanswer?—Notatall.Itcouldn'thavebeen________.A．worseB．sobadC．betterD．theworstⅢ.阅读理解AEveryspringBeijingischokedbyhugesandstorms.TheskyturnsastrangeandfrighteningyellowcolourascloudsofsandsweepdownfromthedesertsofMongoliaandnorthwesternChina.Strongwindsblowupthedustandcovereverythinginsight－in2006，astormdumped330,000tonsofdustonBeijinginonenight.Thenumberofsandstormshasgrownalarminglyovertheyearsasthedesertshaveexpanded.Thisispartlymanmadeandpartlybecauseofclimate(气候)．Manygrasslandshavebeenovergrazed(过度放牧)bysheepandgoats，orploughedup，leavingthesoildangerouslyexposed.Toomuchwaterhasbeentakenoutofrivers，andthesituationismadeworsebyincreasinglylonglastingdroughtsthathaveaffectedthenorthernhalfofChinaastheclimategrowswarmeranddrier.Theresultisprobablytheworstlossofrichlandtodesertsintheworldandadustbowlofextremelylargeproportions.ThenearestsanddunestoBeijingarenowonly70kmawayanddriftingclosereachyear.Atthisrate，thedesertwillreachthecityby2040，andBeijingcouldbecometheworld'sfirstmoderncitytodisappearundersand.Toholdbackthedeserts，ahugeprogrammeofforestplantingcalledtheGreatGreenWallhasbeenunderwayforover30years.Thebarrier(隔离带)isplannedtobe4,500kmlongwhencompletedinseveraldecades(十年)，butthedroughtishavingaverybadeffectonthetreesandthedesertscarryongrowing.1.AllthefollowingarethereasonsfortheexpansionofthedesertsEXCEPT________.A．thesoilofthegrasslandsisexposedB．toomuchwaterinrivershasbeenusedC．itdoesn'trainforalongtimeD．theclimateinnorthernChinaiscolderanddrier2．AtwhatspeeddothenearestsanddunesmovetowardsBeijingaccordingtothepassage?A．More...
