人教新目标版中考英语课本回扣八下Unit3_4习题.doc

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1、2019中考（人新）英语课本回扣习及答案：八下U3--4一、阅读理解。阅读下列短文，从每小题所给的A、B、C、D四个选项中选出最佳选项。Innature,youmayseemanyinsectsandanimalsofdifferentcolours.Haveyoueverwonderedwhy?Locusts(蝗虫)aresuperdeliciousfoodforbirds,butitisnotalwaysaneasyjobforbirdstocatchthem.Itisneitherbecauselocustsaregoodjumpersorrunnersnorbecausetheyare

2、smarterthanenemies.Thereasonisthatthecoloursoflocustschangewiththecoloursofcrops.Whencropsareyoung,locustslookgreen.Butwhenautumncomes,locustschangetoyelloworbrownascropsdo.Brownbears,tigersandotheranimalsmovequietlythroughforests.Theycan’tbeseeneasilybytheirenemies.Thisisbecausetheyhavecolourssimil

3、artothetrees.Forthesamereason,polarbearsthatliveonalandofsnowandicearewhite.Butterfliesandbeeslivingamongtheflowersarecolourfullikeflowers.Soilinsectsaremostlydark–colouredandtheyliveunderthesoilinadarkandwetenvironment.However,insectswithcoloursdifferentfromplantscaneasilybefoundandeatenbyothers.So

4、inordertosurvive,theyhavetohidethemselvesinthedaytimeandappearonlyatnight.Haveyouevernoticedanyevenstrangeracts?Theinkfishintheseacansendoutsomeveryblackinkwhenfacesdanger.Astheinkspreadsover,itsenemieswillfindthemselvessuddenlyinadarkworld.Atthesametimetheinkfishimmediatelyswimsaway.Thatishowitkeep

5、sitselfsafethoughitisnotstrongatall.1.Accordingtothepassage,mostsoilinsects______.A.donothavebrightcoloursB.changetheircolourswiththesoilC.donotappearinthedaytimeD.eatcolourfulinsectslikebutterfliesandbees2.What’sthemeaningoftheunderlinedword“survive”inthepassage?A.liveB.sleepC.findfoodD.layeggs3.Wh

6、atdoestheunderlinedword“This”referto?A.Theymovequietlythroughforests.B.Theircoloursaresimilartothetrees.C.Theirenemiescan’tfindthemeasily.D.Theychangethecolourswiththecrops.4.Theinkfish______sothatitsenemieswillnotseeit.A.changesitscolourB.appearsonlyatnightC.hidesitselfinthesearocksD.makesthewatera

7、rounditblack5.Whatcanwelearnfromthepassage?A.Thepolarbearsthatliveonsnowandicearebrown.B.Someinsectsandanimalsusecolourstoprotectthemselves.C.Allinsectsandanimalscangetusedtotheenvironmenteasily.D.Loc