2个英语阅读题【一】Therearemanykindsofanimalsthatliveintheforest,suchasmice,rabbitssquirrelsowlsandhawks,AnimalsintheforestdependononeanotherforfoodManysmallforestanimals,suchasmice,atgreenplantsforfood,and
2个英语阅读题
【一】
Therearemanykindsofanimalsthatliveintheforest,suchasmice,rabbitssquirrelsowlsandhawks,Animalsintheforestdependononeanotherforfood
Manysmallforestanimals,suchasmice,atgreenplantsforfood,andthentheythemselvesareeatenbylargeranimals.Thisiscalledafoodchain.
Afoodchainbeginswiththesun.Thergreenplantsintheforestusethesun'senergytomakefoodforthemselves.Thisprocess,oraction,iscalledphotosynthesis.
Forestplantsproduceflowersandseedsthatareeatenbymiceandlargeranimal,suchasthehuntinghawk.So,theenergyfromthesunpassesfromtheplantstothemicetothehawk,Abreakinanylinkofthisfoodchainmeansthatsomeanimalsmaynothaveenoughfoodtolive.
1.Photosynthesistakesplacewhengreenplantsusethesun'senergyto_____.
2.Thefirstlinkinafoodchainis_____.
3.Animalssometimescannotfindenoughfoodbecausethereisabreakinthe___chain.
4.Thefoodchainshowaboutlivingthingsdependon____.
【二】
Whentheworldwasveryyoung,peoplelivedonlyinhotplaces,Theydidn'tliveincoldplacesbecausetheycouldnotkeepwarmthere,Atfirstmendidin'tknowhowtomakeafire.Sometimestreeswerehitbylightening.Thenafirewasstarted.Peopletooksomeofthefireneartheirhomes.Afirewasveryimportantforthreereasons.Itkeptthemwarm.Wildanimalswerefrightenedwhentheysawit.andwhenfoodwascooked,ittastedmuchbetter.
Butmendidn'tknowhowtomakeafire.Whentheyhadafire,theykeptitburning.Ifitwentout,theycouldn'tstartitagain.Theyhadtowaitforlighteningtostartanotherfire.Sometimestheyhadtowaitforyears.
1.Wheredidipeoplelivewhentheworldwasveryyoung?
2.Whycouldn'ttheyliveincoldplaces?
3.Werewildanimalsfrightenedwhentheysawthefire?