北京人大附中小升初分班考试真题：英语

北京人大附中小升初分班考试真题英语北京人大附中小升初分班考试真题英语With onlyabout1,000pandasleft in the world,China isdesperately trying（克隆）（物种）.to clonethe animaland savethe endangeredspecies Thatsamovesimilar towhat aTexas A M Universityresearchers havebeenundertaking forthepast fiveyears in a projectcalled“Noahs Ark”.（月丕月台），Noahs Arkis aimedatcollecting eggs,embryos semenand DNAofendangered animals andstoring themin liquidnitrogen.If certainspeciesshouldbecome extinct,Dr.Duane Kraemer,a professorin Texas A MsCollegeof VeterinaryMedicine,says therewou1d beenough ofthe basicbuildingblocks toreintroducethe speciesinthefuture.It isestimated thatasmany as2,000species ofmammals,birds reptileswillbecome extinctin overlOOyears.The panda,native onlyto China,is indangerof becomingextinct inthenext25years.Thisweek,Chinese scientistssaid theygrew anembryo byintroducing cellsfromadead femalepanda intothe eggcells ofa Japanesewhite rabbit.They arenowtrying to implantthe embryointo ahost animal.The entireprocedurecould takefrom threeto fiveyears tocomplete.（核子移植）“The nucleartransfer ofone speciesto anotheris not easy,（）and thelack ofavailable capableofbeing usedpanda eggscould bea majorproblem,“Kraemer believes.They willprobablyhave to do severalhundred（）transfers toresult inone pregnancyhaving ababy.It takesa longtime anditsdifficult,but thiscould begroundbreakingscience ifit works.They arecertainlynot puttingany livepandasat risk,so itis worththe effort,“addsKraemer,who isone oftheleaders ofthe Projectat TexasAM,the first-everattempt atcloning adog.“They aretryingtodosomething thatsnever beendone,and thisis verysimilarto ourwork inNoahsArk.Were bothtryinng tosave animalsthat faceextinction.I certainlyappreciatetheir effortand theres alot wecan learnfrom whatthey areattemptingtodo.Its aresearchthat isvery muchneeded.”u

1.The aimof NoahsArk“project isto.A.make effortsto clonetheendangered pandasB.save endangeredanimalsfrom dyingoutC.collect DNAofendangeredanimalsto studyD.transfer thenuclearof oneanimal toanother

2.According toProfessor Kraemer,the majorproblem incloning pandaswou1d bethelack of.A.available pandaeggsB.host animalsC.qualifiedresearchers D.enough money

3.The besttitle forthe passagemay be.A.Chinas SuccessinPandas CloningB.The FirstClonedPanda inthe WorldC.Exploring thePossibilityto ClonePandasD.China—the NativePlaceof PandasForever

4.From thepassage weknow that.A.Kraemer andhis teamhavesucceeded incloning adogB.scientists trytoimplant apandas egginto arabbitC.Kraemer willworkwith Chinesescientists inclone researchesD.about twothousand ofspecieswill probablydie outinacentury【解析】*讲述中国正在竭力克隆濒临绝种的熊猫，这和的TexasAMUniversity NoahsArk（诺亚方舟）工程极为相似，都是想拯救濒临灭绝的动物语义理解题从第段内容可知，“诺亚方舟”工程的目标是把濒临灭

1.Bo2绝的动物的蛋（卵）、胚胎、精液和储存在液体氮中，如果某一种动物濒临灭DNA绝时，将来可以重现这一动物细节题从第段第句话（核子移植）

2.Ao61The nucleartransfer ofone species（）toanother isnoteasy,andthelack ofavailable capableof beingused pandaeggs可以做出正确判断could bea majorproblem主旨题从*内容来看，无论是中国还是世界克隆熊猫还没有成功，所以

3.Co排除、项;项内容明显与*内容不符，故排除所以“探索克隆熊猫的可能性”A BD应该是这篇*的标题判断题此题项的干扰性较强，但由于它没有说明是

4.Do BChinesescientists,所以应排除、项明显与原文不符根据*第段第句可知答案非莫属A C31D。