全科学习资料，尽掌在手科普环保类专项练习学校:___________姓名：___________班级：___________考号：___________题号一总分得分评卷人得分一、阅读理解WhenyouwatchTVprogramsaboutwildanimals,itissurprisingtoseehowanantelope(羚羊)canrunawayfromastronglion.Inthewilderness,everyonehashisownwaytoprotecthimself.Evenplantshavetheirownwaystofightoffenemies.Overmillionsofyears,plantshavedevelopedtheirowndefensesystem(防卫系统).Chemicalsarefantasticallyusedbyplantstosurvive(幸存).Bymakingtheirleaves,flowers,rootsandfruitspoisonous(有毒的)toenemies,plantscanfightback.OnesuchplantistheGoldenWattletree.TheBritishscientistDavidCameronhasfoundwhenananimaleatsthetree’sleaves,theamount(数量)ofpoisonincreasesintheotherleaves.“It’sliketheinjuredleavestelephoningtheotherstofighttogetheragainsttheenemy,”hesaid.Thetreealsosendsdefensemessagestoneighboringplantsbygivingoutaspecialsmell.GoldenWattletreesinthenearby45meterswillgetthemessageandproducemorepoisonwithin10minutes.Now,ifanenemyeatstoomanyofthetrees’leaves,hewilldie.Everykindofplantortreeisgoodatproducingaspecialsetofchemicals.Herbivores,likerabbits,cansafelyeattheleavesofonetree,buttheymaybepoisonedbyitsneighbor.Inthisway,plantshavenotonlydevelopedtheirowndefensesystem,butalsoshareditwithothers.Thismakesitimpossibleforasingleanimaltodestroyevenasmallareaofforest.1．Fromthefirst2paragraphs,wecanlearnthat_________.A.plantscandonothingagainsttheirenemiesB.chemicalsarequiteusefulforplantstosurviveC.anantelopecanalwaysrunawayfromastronglionD.leaves,roots,flowersandfruitsofplantsarepoisonous2．IfanimalseatoneGoldenWattletree’sleaves,thetreecan________.A.killtheanimalswithaspecialsmellB.tellothertreestocometoprotectit版权所有@阳光学习网(www.pallasa.com)全科学习资料，尽掌在手C.warnothertreesagainsttheanimalsonthephoneD.senddefensemessagestotheneighboringplants3．Theunderlinedword“herbivores”inthe5thparagraphprobablymeansanimalswhich_____.A．producepoisonB．liveonsmallanimalsC．liketoeatrabbitsD．feedonplantsorgrass4．Thelastparagraphofthepassagesuggeststhatthiskindofdefensesystemis________.A．badforanimalsB．goodforforestsC．helpfultosomeanimalsD．harmfultoforests5．Thepassageismainlyabout__________.A．theexamplesofprotectingforestsB．thebalancebetweenanimalsandplantsC．thewaysofplantsfightingagainstenemiesD．therelationshipbetweenlionsandantelopesQiHaoran,aJunior1student,wasquitebusyoverthepastwintervacation–andnotjustwithhomework.Qi,togetherwith10otherclassmatesmadeavolunteergrouptocallonpeopletojointheCleanYourPlateCampaign(“光盘行动”).The11studentswenttomanyrestaurantsandtoldpeopletheimportanceofsavingfood.“Excuseme,doyouknowthat950millionpeoplearoundtheworldstillhaven’tgotenoughtoeat?Pleasedon’twastefood.”Theywouldsaythiskindofthinghundredsoftimeseveryday.TheCleanYourPlateCampaignbeganontheInternetinJanuary.Itcallsonpeopletoreducefoodwaste.Chinaintheseyearshadseriousproblemswithwastedfood.CCTVreportedinJanuarythatthefoodChinesepeoplewasteeveryyearisenoughtofeed200millionpeopleforayear.Chinesepeoplearewellknownforbeinghospitable(好客的)andgenerous（大方的）.Manyevenfeelthattheylosefaceiftheirguestshaveeatenallthefood.Luckily,thecampaignhasgotthesupportofmany.InarestaurantinXinjiang,theownergivetheguestswhohaveeatenallthattheyorderedasticker(贴花).Peoplecanenjoyafreemealwhentheyhave10stickers.Morethan750restaurantsinBeijinghavebegu...
