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avbeenunulliJeifer Balch,who's fre scientist,told thePost,"Climate change is definitely a part of this story,in that fire seasolonger.”28.How many towns were affected by the fires?A.2.B.3.D.5.29.What can be inferred about the fires?C.4.A.They were put out at the same time.BIt hasn't been clear how they started.C.They'e therwildfires inCoordNr killed in the fires.30.Which of the following does jennifer Balch agree with?A.The wildfire season is shorter than before.B.Boulder County is in urgent need of rain.C.People are not prepared for extreme weather.D.Climate change is to partially blame for the fires.31.Which can best describe what happened to Colorado recently?A.It never rains but it pours.B.Save for a rainy day.C.Kill two birds with one stone.D.Prevention is better than cure.DAs with other organs like the heart,lungs,or liver,human life depends on healthykidneys().One way to help a patient with kidney trouble is to replace their kidneys withhealthy kidneys,which is called a "transplant".For years,scientists have tried to figure outhow to transplant organs from other animals into humans.This is hard because the humanbody almost always rejects something that isn't its own.Scientists have tried transplanting organs from chimpanzeest(黑猩猩)or baboonst(佛狒)，but this didn't work very well.More recently,scientists have focused on transplants frompigs.In many ways,pigs'bodies are similar to humans.It's fairly easy to raise pigs,and theygrow quickly.It's now common for doctors to transplant pig heart valves()to repairdamaged human hearts.Heart valves open and close to help the heart pump blood.But human bodies normally reject other pig organs because they contain a specialchemical called "alpha-gal".This time,to prevent the body from rejecting the pig kidney,scientists changed the pig's DNA slightly so that it wouldn't produce alpha-gal.Last month,a medical team at New York University Langone Health,led by Dr.RobertMontgomery,attached this special pig kidney to a brain-dead human patient,who had wishedto donate her organs,for the first time ever.The kidney functioned normally for the hours itwas attached."There didn't seem to be any kind of sign between the pig kidney and thehuman that would make it not work,"said Montgomery."It was beyond our expectation.Itdidn't have the immediate rejection that we had worried about."Though the kidney wasn't placed inside the patient's body,it was connected to thepatient for over two days.During that time,the kidney worked as kidneysare suposedtowork.Most importantly,there were no signs that the kidney was being rejected.Howeve,there are still many questions to be answered.It'sno ko what would happen nce thiskind of kidney is actually transplanted intohuman Would it be reewhile?32.What does paragraph 2 focus on?B.The use of pigs in medical research.A.Pig heart valves'main functions.C.Pigs'advantages over other animals.D.Similarities between pigs and humans.英语试题（一）第5页（共8页）衡中同卷