试题习题、尽在百度仔细审题、认真作答选修八Unit5[基础回顾]Ⅰ.单句语法填空(导学号02516357)1．Itisassumedthatstressismainlycausedbytoomuchwork.2．Ifyoudon'tliketheschoollunch,youhavethealternativeofbringingyourown.3．Shehaskeptupphysicaltrainingforseveralyearswithoutinterruption(interrupt)．4．Themoreweareawareofthesignificance(significant)ofthisfamoussaying,themorebenefitswewillgetinourdailystudyandjob.5．Ifyoustudyinasystematic(system)way,youwon'tleaveanythingout.6．Theplantsneedtherightamountofsunlightandraintogrowandripen(ripe)．7．Themechanicwhowishestodohisworkwell,mustfirstsharpen(sharp)histools.8．Theescapedprisonergotarrested(arrest)immediatelyheturnedupattherailwaystationandwassenttoprisonagain.9．Scientistshaveidentified(identify)morethanfortychemicalsintobaccosmokethatcausecancerinhumansandanimals.10．Incontrasttoourignoranceofsavingfood,manypeopleespeciallythoseinpoverty-strickenareasaresufferingfromstarvation(starve)．Ⅱ.单句改错(每句一错)(导学号02516358)1．Ihadnoalternativebutreporthimtotheheadteacher.report前加to2．Assumedthattheweatherisfavorable,farmerswillhaveagoodharvest.Assumed→Assuming/Assume3．Hecouldhavefinisheditonschedule,butanyhowhefellbehind.anyhow→somehow4．I'mverysorrytointerruptwithyou,butIhavesomethingveryimportanttotellyou.去掉with5．Thesignificanceattachingtoanationaldayisverydifferentfromcountrytocountry.attaching→attachedⅢ.佳句写作(导学号02516359)1．他们急匆匆地到达公司，结果了解到他们被开除了.(onlyto作结果状语)答案：Theyhurriedtothecompany，onlytolearnthattheywerefired.2．看看我们现在所处的困境.要是我们接受了他的建议就好了.(ifonly)答案：Lookatthetroubleweareinnow.Ifonlywehadtakenhisadvice.3．看，我的妈妈正在切碎包饺子的肉.(cutup)试题习题、尽在百度仔细审题、认真作答答案：Look，mymotheriscuttingupthemeatformakingdumplings.4．假设他在七点回来的话，我们就开会.(assume)答案：Assume/Assumingthathecomesbackatseven，wewillhaveameeting.5．尽管下大雨，医护人员还是迅速地赶到事故现场.(inspiteof)答案：Inspiteoftheheavyrain，thedoctorsandnursesrushedtothesceneoftheaccident.[技能提升]Ⅰ.阅读理解(导学号02516360)TheancientMayancivilizationcollapsedduetoacentury-longdrought,newresearchsuggests.MineralstakenfromBelize'sfamousunderwatercave，knownastheBlueHole，aswellaslagoons(环礁湖)nearby,showthatanextremedroughtoccurredbetweenA.D.800andA.D.1,000,rightwhentheMayancivilizationended.Aftertherainsreturned,theMayansmovednorth－buttheydisappearedagainafewcenturieslater,andthatdisappearanceoccurredatthesametimeasanotherdryperiod,thesediments(沉积物)reveal.Althoughthefindingsaren'tthefirsttotieadroughttotheendoftheMayanculture,thenewresultsstrengthenthecasethatdryperiodswereindeedthecause.That'sbecausethedatacomefromseveralspotsinaregioncentraltotheMayanheartland,saidstudyco-authorAndreDroxler,anEarthscientistatRiceUniversity.FromA.D.300toA.D．700,theMayancivilizationflourishedintheYucatanpeninsula.TheseancientMesoamericansbuiltgreatpyramids,masteredastronomy,anddevelopedbothawritingsystemandacalendarsystem,whichisfamousforpredictingthattheworldwouldendin2012.ButinthecenturiesafterA.D.700,thecivilization'sbuildingactivitiesslowedandtheculturefellintowarandunrest.Theevidenceforadroughthasbeengrowinginrecentyears.A2012studyinthejournalScienceanalyzeda2,000-year-oldstalagmite(石笋)fromacaveinsouthernBelizeandfoundthatsharpdecreasesinrainfallcoincidedwithperiods...
