2021年荆门市海慧中学高三英语下学期期中考试试题及答案解析.pdf
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1、2021 年荆门市海慧中学高三英语下学期期中考试试题及答案解析 第一部分 阅读(共两节,满分 40 分)第一节(共 15 小题;每小题 2 分,满分 30 分)阅读下列短文,从每题所给的 A、B、C、D 四个选项中选出最佳选项 A You might not expect it,but cows are a large source of the greenhouse gases that are driving climate change.Cows produce lots of methane by breaking down the grass,Now scientists have
2、shown that the pollution from cows canbe reduced by adding a little seaweed to their food.Scientists first discovered that seaweed could help control methane from cows several years ago.But this work was done in a laboratory,there were many questions about whether the idea could work in real life.In
3、 the lab studies,the cows were given quite a bit of seaweed,and they would cause losing weight.That wasnt helpful,since cows are often sold by weight.It also wasnt clear if the seaweed would stop working if it was used for a longer period of time.Now,scientists from the University of California,Davi
4、s have answered several of these questions.The researchers studied 21 cows on a farm for about five months.They taught the cows to get their food from inside a special hood,which allowed the scientists to measure the methane that the cows were giving off.This time,they used a much smaller amount of
5、seaweed,which they mixed with the cows food.The results were surprisingly good.In some cases,the cows produced 82%less methane.The improvement depended on the kind of food the cows were given,but even the worst-polluting cows produced 33%less methane.Over the five months,the scientists didnt see any
6、 signs that the cows stomachs were getting used to the seaweed and starting to produce more methane again.Another surprise came when they looked at the weight of the cows.The cows that were fed seaweed gained just as much weight as the other cows,but they didnt need as much food.But there are still
7、some big problems with the idea of feeding cows seaweed.For one thing,theres notadequateseaweed to feed all of the cows in the world.So farmers would have to figure out a way to grow lots of seaweed.A bigger problem is that for most of their lives,cows live in fields,where they eat the grass.That me
8、ans theres no chance to feed them seaweed every day.These problems need to be taken seriously if the world is going to avoid the worst effects of the climate crisis.Still,its true that something as simple as feeding cows seaweed can help reduce some of the pollution causing the climate crisis.1.Why
9、did the scientists do the experiment on the farm?A.To control the amount of seaweed.B.To record the weight cows gained.C.To confirm the effect of seaweed in real life.D.To measure the amount of seaweed cows ale.2.The underlined word“adequate”means _.A.common B.special C.lacking D.enough 3.The passag
10、e is written to _.A.appeal to people not to raise the cows B.encourage people to plant the seaweed C.remind people of controlling cows weight D.call on people to take actions to reduce the pollution B Doctors are known to be terrible pilots.They dont listen because they already know it all,I was luc
11、ky:I became a pilot in 1970,almost ten years before I graduated from medical school.I didnt realize then,but becoming a pilot makes me a better surgeon.I loved flying.As 1 flew bigger,faster planes,and in worse weather,I learned about crew resource management(机组资源管理),or CRM,a new idea to make flying
12、 safer.It means that crew members should listen and speak up for a good result,regardless of positions.I first read about CRM in 1980.Not long after that,an attending doctor and I were flying in bad weather.The controller had us turn too late to get our landing ready.The attending doctor was flying;
13、I was safety pilot.He was so busy because of the bad turn,he had forgotten to put the landing gear(起落架)down.He was a better pilotand my bossso it felt unusual to speak up.But I had to:Our lives were in danger.I put aside my uneasiness sand said,we need to put the landing gear down now!That was my fi
14、rst real lesson in the power of CRM,and Ive used it in the operating room ever since.CRM requires that the pilot/surgeon encourage others to speak up.It further requires that when opinions are from the opposite,the doctor doesnt overreact,which might prevent fellow doctors from voicing opinions agai
15、n.So when Im in the operating room,I ask for ideas and help from others.Sometimes theyre not willing to speak up.But I hope that if I continue to encourage them,someday someone will keep me from landing gear up.4.What does the author say about doctors in general?A.They like flying by themselves.B.Th
16、ey are quick learners of CRM.C.They pretend to be good pilots.D.They are unwilling to take advice.5.The author deepened his understanding of the power of CRM when .A.his boss landed the plane too late B.he was in charge of a flying task C.he saved the plane by speaking up D.his boss operated on a pa
17、tient 6.In the last paragraph landing gear up probably means .A.following flying requirements B.making a mistake that may cost lives C.listening to what fellow doctors say D.overreacting to different opinions 7.Which of the following can be the best title for the text?A.CRM:A New Way to Make Flying
18、Safe B.A Pilot-Turned Doctor C.The Making of a Good Pilot D.Flying Makes Me a Better Doctor C“My P.E.teacher taught me maths.”It has been a common joke for years but when a P.E.teacher applied for the head-teacher job,many parents worried that“the joke could come true”.Some parents asked,“Does the P
19、.E.teacher know maths and English?If not,how is he supposed to tutor the students?”But there were still parents who believed P.E.teachers had more time to discipline the students since they didnt have many classes.This concern is actually a“subject bias”,that is,choosing a P.E.teacher as the head-te
20、acher is not good for the students grades since he doesnt know Chinese,maths,or English.It is acceptable for Chinese teachers,maths teachers and English teachers to be head-teachers because these subjects are important to entrance exams and scores.Such a concern reflects parents anxiety in the curre
21、nt educational environment,which tends to link the head-teachers responsible subject with the facts whether the school cares about the class and the childrens performances in the subject.Many people care about their kids academic performances only.They dont care about their kids P.E.performance at a
22、ll.Even if kids have P.E.classes,parents care little.P.E.teachers are in humble position and their classes are often occupied by other teachers.Of course,if students,P.E.performance is related to grades and entrance exams,parents wont mind“a P.E.teacher being the head-teacher”.At the moment,P.E.is g
23、radually included in entrance exams.In terms of high school entrance examination,Guangzhouwill launch a new high school entrance exam which includes P.E.performance and Health examination in 2021,raising the score to 70 points.In terms of the college entrance examination,universities having the righ
24、t of independent enrollments added P.E.tests to their entrance exams in 2019.This practice is seen as an important signal that the assessment of physical fitness and athletic ability,which are important aspects of a students overall quality,may be included in the college entrance examination in the
25、future.We hope that its a trend for P.E.teachers,music teachers and art teachers to become head-teachers.8.By saying“My P.E.teacher taught me maths”,what does the author intend to show us?A.It is just a joke that seldom happened in reality.B.P.E.teachers hardly assist students in maths.C.P.E.teacher
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