必修二Unit6課文挖空學(xué)生版

必修二Unit6課文挖空練習(xí)1.UnderstandingideasSharks:dangerousorendangered?Weseeawoman________(swim)atnightinadarksea.Suddenly,she________(pull)underwater.Shesurfaces,cries________________（害怕地）,thendisappearsforever.Thisistheopeningsceneformthe1975filmJaws,________(show)asharkattack.Ittellsthestoryofagreatwhitesharkthatattacksandkillsswimmers.Jawswasagreatsuccess,_____________(attract)hugeaudiencesandwinningmanyawards.It________(strength)people’slong-heldideaofthegreatwhitesharkasadangerousanimal.Peoplehavealways___________________（害怕）sharks,butJawsmadethings________(bad).Itmadepeople________(fright)ofsharks,especiallyofthegreatwhiteshark.Manypeoplewhosawthefilmstartedtobelievethatsharkswerebadanimals_________atehumans.Somepeoplestoppedswimminginthesea,afraidofthehorriblecreaturefromthefilm.Otherpeoplestartedfishingforsharks,________(kill)anmanyastheycould.Atthattime,nobodycared________sharkswerekilled,orhowmanywerekilled.Peoplejustwantedthem__________(kill).After1975,thenumberoflargesharksaroundAmericafellquickly,andsoonfellaroundtheworld.Thiswasnotonly______________（由于）fearofsharks,butalsofinning.Finningisatypeoffishingwheresharksarecaughtandtheirfins___________（切掉）.Thesharksarethrownbackintothesea________theydieslowlyandpainfully.Thefinsareusedinsharkfinsoup.Finningkillsmillionsofsharksayear.Finningwouldhaveanunexpectedeffect________PeterBenchley,themanwhowrotethebookthefilmJawswasbased________.In1980,Benchleywasdivingwhenhe______________（遇到）awfulsight.Itwasanareawherefishermenwerefinning,andtheseafloor____________________（被......覆蓋）deadsharks.Benchleysawsharks_____________(kill)andthiscausedadeepchangeinhim.Hecametoseepeople________adangertosharks,ratherthan_______________________（與之相反）.Fromthatdayon,hefoughttoprotectsharks.Headmittedthathisbookwaswrongaboutsharks’behaviour.“Sharksdon’ttargethuman,”hesaid.Expertshaveprovedthatsharksdonotseepeopleasfood,andtheyattackus________________（無意中）.Onlyaroundsixpeoplearekilledbysharkseveryyear.________(fortunate),noteveryonewhowatchedthefilmJawsbecameafraidofsharks----somebecameinterestedinunderstandingthem.Today,aswelearnmoreaboutsharks,morepeoplethaneverwanttoprotectthemfrom______________(extinct).DevelopingideasWhat’sreallygreen?Mostofusareawarethatwemusttakecare________theenvironment,andthe________(major)ofustakesteps____________(save)energyandreducewasteandpollution.Butrecently,some“greentruths”____________________(show)tobeonlyhalftrue,orevencompletelyfalse.Herearesomecommonones.Whicharereallygreen?Papershoppingbagsarebetterthanplasticones.Plasticbagscauselitterandareadangertowildanimals,________mistakethemforfood.Ittakeshundredsofyearsforplasticto_______________（分解）,butmuchlesstimeforpaper.Becauseofthis,peoplethinkpaperbagsarethebetter________________(environment)choice.However,________(make)apaperbagusesfourtimesasmuchenergyasmakingaplasticbaganduptothreetimestheamountofwater.Theprocessalsoproducesmoregreenhousegases.Infact,bothkindsofbagsarebad________theenvironment.So,takeareusablebagwithyouwhenyougoshopping.Whenyouturnoffadevice,itshopsusingpower.Whenweturn________adevice,suchastelevision,itgoesinto___________________（待機模式）.Devicesinthismodestillusepower,andolderdevicesinstand-bymodecanuseeven________(much).Thishappensbecauseelectricitycontinuestoleakfromthedevice,evenwhenitisturned“off”.Tomakesureyour__________________(apply)isinfactoff,removetheplugfromitspowersupply.Eatinglocalfoodisgoodfortheenvironment.Itseemslikecommonsense:eatinglocalfoodshouldbebetterfortheenvironment.Becauseitdoesnotneed__________________(transport)longdistancesandkeptcoldduringtransport.________(fortunate),itisnotthatsimple.Itistheproductionoffood,notitstransport,_________usesmostoftheenergyandproducesmostofthegreenhousegases.Insomecases,localproducemighthaveusedmoreenergyandproducedmoregreenhousegasesthanproducegrownalongwayaway-eventaking________accountitstransport.It’sbettertotakeashowerthanabathIt________________（取決于）howlongyouspendintheshower________howlargeyourbathis.Ifyouspendmorethaneightminutesinashower,you’lluseasmuchwateras