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1、2021 年衡阳县第一中学高三英语上学期期中试题及答案解析 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 As the MOOC craze continues to explode,anyone interested in taking an online course faces a tricky question:Which course to take?Here are five aspects that you should consider before you
2、 start.(1)What is your learning style?Many MOOCs are video-based.Other courses use presentation formats.Some also require participation in group work.If you want to stay motivated during your course,think about how you enjoy learning.Are you a visual learner,preferring to use images to understand a
3、topic?If so,a video-based course will work well for you.If you are a verbal learner who gains new information by speaking and writing,try a text-based course with lots of note-taking.Social learners,meanwhile,will thrive in forum discussions and project-based assessment.(2)Are you ready to become a
4、full-time student?Be realistic about the time that you can commit to your online studies.Participating in an online course can take as much time and commitment as a class-based program.Check the course requirements and make a plan around your current schedule.(3)Does the course really meet your need
5、s?Whether you are interested in a professional qualification or want to take a personal development course like yoga,there is a MOOC for you.Its easy to get caught up in the excitement of taking lots of free courses in everything that you ever wanted to learn.Before you start a course,think about th
6、e end goal.Is the course aimed at beginners or advanced learners?Why do you need this qualification?(4)Do you need a support group?Some people learn best from seeing how others approach the problem.If you are such as learner,you will need to supplement your online lessons with an in-person support g
7、roup.(5)What kind of certification will you get?Take time to find out what kind of certification is available upon completion of the course,and how you can prove your learning to others-for example,certificates,transcripts or digital badges.1.What kind of MOOCs does the author recommend to verbal le
8、arners?A.A video-based course.B.A text-based course.C.A forum-based discussion.D.A project-based assessment.2.What kind of learners need an in-person support group?A.Learners who prefer individual work.B.Learners who are in great need of a certificate.C.Learners who are too busy to become a full-tim
9、e student.D.Learners who learn best from observing how others address the problem.3.What is the passage mainly about?A.Picking the right MOOCs for you.B.Deciding your learning style.C.Taking the right course you need.D.Choosing a suitable support group.B A team of engineers atHarvardUniversity in tr
10、ying to create the first robotic fly.Designed to do what a fly does naturally,the tiny is the size of a fat housefly.Its mini wings allow it to stay in the air and perform controlled flight tasks.The added difficulty with a project like this is that actually none of its components is off the shelf a
11、nd so we have to develop them all on our own said Robert Wood,a Harvard engineering professor.They engineered a series of systems to start and drive the robotic fly.“The seemingly simple system which just moves the wings hasa number of interdependencies(相互依赖）on the individual components,each of whic
12、h individually has to perform well,but then has to be matched well to everything it d connected to,”said Wood.While this first robotic flyer is linked to a small,off-board power source,the goal is eventually to equip it with a built-in power source,so that it might someday perform data-gathering wor
13、k at rescue sites，in farmers fields or on the battlefield.Basically it should be able to take off,land and fly around，”he said.Wood says the design offers a new way to study flight mechanics and control at insect-scale.Yet,the power,sensing and computation technologies on board could have much broad
14、er applications.“You can start thinking about using them to answer open scientific questions,you know,to study biology in ways that would be difficult with the animal，but using these robots instead”he said.So there are a lot of technologies and open interesting scientific questions that are really w
15、hat drives us on a day-to-day basis.”4.What is the typical characteristic of the robotic fly?A.Its automatic.B.Its very small.C.Its controllable.D.Its quite powerful.5.We can infer from the passage that the robotic flyer can_.A.act as a spy plane B.help do farm work C.fly at a very high speed D.answ
16、er many scientific questions 6.What is Woods idea about the robotic fly according to the last paragraph?A.It is highly questionable.B.It has wide practical applications.C.It gives scientists interest in flying machines.D.It points to a new direction in studying biology.7.What can be the best title f
17、or the passage?A.Harvands Study in the Field of Insects.B.A Breakthrough in Engineering Science C.An Interesting Invention 一 Robotic Fly D.Robotic Fly 一 a Copy of Real Life Insect C Pigeons inLondonhave a bad reputation.Some people call them flying rats.And many blame them for causing pollution with
18、 their droppings.But now the birds are being used to fight another kind of pollution in this city of 8.5 million.“The problem for air pollution is that its been largely ignored as an issue for a long time,”says Andrea Lee,who works for the London-based environmental organization Client Earth.“People
19、 dont realize how bad it is,and how it actually affects their health.”Londons poor air quality is linked to nearly 10,000 early deaths a year.Lee says,citing(引用)a report released by the city manager last year.If people were better informed about the pollution they re breathing,she says,they could pr
20、essure the government to do something about it.Nearby,on a windy hill inLondons Regents Park,an experiment is underway that could helpthe first week of flights by the Pigeon Air Patrol.It all began when Pierre Duquesnoy,the director for DigitasLBi,a marketing firm,won a London Design Festival contes
21、t last year to show how a world problem could be solved using Twitter.Duquesnoy,fromFrance,chose the problem of air pollution.“Basically,I realized how important the problem was,”he says.“But also I realized that most of the people around me didnt know anything about it.”Duquesnoy says he wants to b
22、etter measure pollution,while at the same time making the results accessible to the public through Twitter.“So”,he wondered,“how could we go across the city quickly collecting as much data as possible?”Drones were his first thought.But its illegal to fly them overLondon.“But pigeons can fly aboveLon
23、don,right?”he says.“They liveactually,they are Londoners as well.So,yeah,I thought about using pigeons equipped with mobile apps.And we can use not just street pigeons,but racing pigeons,because they fly pretty quickly and pretty low.”So it might be time for Londoners to have more respect for their
24、pigeons.The birds may just be helping to improve the quality of the citys air.8.What can we infer aboutLondons air quality from Paragraph 2?A.Londoners are very satisfied with it.B.The government is trying to improve it.C Londoners should pay more attention to it.D.The government has done a lot to i
25、mprove it.9.Duquesnoy attended the London Design Festival to _.A.entertain Londoners.B.solve a world problem.C.design a product for sale.D.protect animals like pigeons.10.Why did Duquesnoy give up using drones to fly acrossLondon?A.Because they are too expensive.B.Because they fly too quickly.C.Beca
26、use they are forbidden.D.Because they fly too high.11.Which can be the best title for the text?A.Clean air inLondon.B.Londons dirty secret.C.Londons new pollution fighter.D.Causes of air pollution inLondon.D Japan is known to have higher than average rates of stomach cancer.Recently,the town of Kane
27、yama in Yamagata Prefecture decided to get its 6,000 residents(居民)tested.However,the frozen urine samples(尿样)are not tested in conventional ways.Instead,Professor Masao Miyashita and his team are using them in a trial to determine if specially trained cancer-sniffing dogs can accurately detect the d
28、isease.Though the study is still in its early stages,Miyashita is thrilled with the results.He said,“In our research so far,cancer detection dogs have been able to find signs of cancer with an accuracy of nearly 100 percent.”Researchers have known about the animals superior sensory skills for decade
29、s.However,their ability to detect cancer in humans came to light in 1989,after a dog sniffed out early-stage malignant melanoma(恶性黑色素瘤)on a patients leg in London.Since then,scientists from many countries have conducted studies to test dogs great skill at identifying cancer chemicals.While most dogs
30、 can be trained for the task researchers say the best candidates are dogs that are precise,quiet,and perhaps even a little shy.The training process is similar to how dogs are taught to learn any trick by rewarding them with treats!However,it takes much longer because the dogs have to learn to separa
31、te the“cancer scent(气味)”from the thousands of organic compounds(有机化合物)in the human body.Researchers begin by exposing the dogs to urine samples from people with cancer,people with other diseases,and patients with no health issues,Once the dogs are able to accurately identify cancer,they are further
32、trained to detect particular kinds of cancer.Successful as they may be,experts think dogs are unlikely to replace conventional tests.For one,it takes about seven years and costs as much as$45,000 to train a single dog.Klaus Hackner,a researcher and physician who studies dogs detecting cancer in brea
33、th samples at Krems University Hospital in Austria,is also not convinced dogs can be relied upon alone.Patients,therefore,have to receive further tests to confirm if they have the disease.12.What do we know about the cancer-sniffing dogs mentioned in Paragraph 2?A.They have done a great job.B.They a
34、re trained in a special way.C.They can easily learn to distinguish cancer.D.They can be seen in many Japanese hospitals.13.What does the author intend to do in Paragraph 3?A.Offer readers some advice.B.Add some background information.C.Summarize the previous paragraphs.D.Introduce a new topic for di
35、scussion.14.What kind of dog is suitable for the cancer-sniffing job?A.Smart and brave.B.Active and faithful.C.Strong and patient.D.Careful and peaceful.15.What is Klaus Hackners opinion on cancer-sniffing dogs?A.They should work as a team.B.They need to receive more training.C.They can replace doct
36、ors in detecting cancer.D.They should be used together with traditional tests.第二节（共 5 小题；每小题 2 分，满分 10 分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项 Fishing is a great family sport，and a fun summertime activity._16_.If you have never fished before it can seem very complicated.Expert fishers know when
37、and where to find certain fish and the best technique to catch each fish.Expert knowledge comes from years of experience._17_.As a beginner you will want to use a technique called“Bait(鱼饵)Fishing”.This type of fishing is probably the easiest technique for catching fish.You will need some basic fishi
38、ng equipment，which you can get at almost any outdoor gear store.You will have to have a rod and fishing line，hooks，some bait and if you are planning on keeping the fish，you will need something to store the fish.The best way to learn how to fish is to learn fromsomeone who already knows，so when plann
39、ing your fishing trip，be sure to bring along someone who has fished before._18_，you will need to decide where to go fishing.Probably for the first time you will want to go to a local lake，where the water is calm and there are plenty of fish.You should also try to research the different types of fish
40、 that live in the place you decide to fish，so you know what types of bait they like to eat and what you want to do with the fish once you have caught it._19_，you probably want to clean the fish，then store it before continuing fishing.If you want to release the fish，be extra careful when removing the
41、 hook，so it doesnt get hurt too badly，then gently hold the fish in the water and allow it to swim away out of your hands._20_Take some time to learn from an expert and you will be able to catch all types of fish using a wide variety of methods.A.If you want to keep the fish B.After you have decided
42、to go fishing C.Once your hook and bait is in the water D.Now you have a very basic understanding of fishing E.There are many different species of fish and types of fishing F.Here are a few simple and basic fishing tips to get you started G.At this point you will need to determine if you want to kee
43、p the fish 第二部分 语言运用（共两节，满分 45 分）第一节（共 20 小题；每小题 1.5 分，满分 30 分）阅读下面短文，从每题所给的 A、B、C、D 四个选项中选出可以填入空白处的最佳选项 Last year I decided to do some volunteer work.I began to_21_on the Internet and discovered Volunteer USA.Three months later I_22_myself on a plane toPhoenix,Arizona.I was_23_at the thought of liv
44、ing with loads of new people for three months.However,within fifteen minutes of_24_,my worries had gone.Everyone was so_25_and like-minded that it was very_26_to feel at home.I was sent to theCoronadoNational Forestfor my first 8-day_27_.We had to_28_everything we needed and walk three miles to wher
45、e we worked.It may not seem like a_29_way but in 35heat and with a heavy pack,my legs were on fire.My job was to_30_a stairway out of rock.This_31_climbing up and down the side of a mountain inhabited(栖息)by mountain lions,although I should say they were only heard,never_32_.Three days later,a beauti
46、ful stairway came into being.The_33_of knowing that my_34_will be on that mountainside for years to come is massive.But on the last night we were_35_in a thunderstorm.I woke up at midnight to find a swimming pool in my tent.The temperature was close to_36_.I had to spend the rest of the night trembl
47、ing in the only_37_part of my tent._38_,I suffered a lot.But I know whatever I have to face in my life I was there and I_39_.I think I am much_40_for having taken part in the project.21.A.calculate B.negotiate C.advertise D.research 22.A.imagined B.introduced C.enjoyed D.found 23.A.annoyed B.surpris
48、ed C.scared D.excited 24.A.arriving B.sleeping C.thinking D.walking 25.A.confident B.friendly C.energetic D.curious 26.A.funny B.good C.lucky D.easy 27.A.tour B.project C.campaign D.course 28.A.drop B.make C.carry D.buy 29.A.nice B.safe C.long D.quick 30.A.build B.test C.clean D.guard 31.A.helped B.
49、ended C.allowed D.meant 32.A.hunted B.trained C.seen D.fed 33.A.satisfaction B.ambition C.expectation D.intention 34.A.work B.memory C.record D.story 35.A.left B.caught C.attacked D.separated 36.A.boiling B.average C.normal D.freezing 37.A.tidy B.dry C.new D.soft 38.A.By the way B.Regardless of that
50、 C.Needless to say D.In either case 39.A.survived B.resisted C.escaped D.recovered 40.A.smarter B.stronger C.happier D.busier 第二节（共 10 小题；每小题 1.5 分，满分 15 分）阅读下面短文，在空白处填入 1 个适当的单词或括号内单词的正确形式 People like to be considered humorous,but few of us_41._(actual)have the sense of humor we hope we have.Some p