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1、2021 届中央民族大学附属中学高三英语上学期期中试卷及答案 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 Sahara Marathon 2021-Around the World The Sahara Marathon is organized by the Saharawi Ministry of Youth and Sports and a group of volunteers from different countries.During the last tw
2、enty years,thousands of runners from all continents have traveled to the Algerian desert to live the experience provided by this race and to bond with refugee families.In this unique edition of 2021,the experience will be different.The race will be held in a virtual way and the donations collected t
3、hrough the event will go to the most needy families in the Saharawi Camps of Tindouf.Rules of the 2021 Sahara Marathon Participation All those people over 16 years of age(16 included)may take part in this virtual competition,as long as they are correctly registered,both in time and in form.The regis
4、tered runner must download the Official Sahara Marathon APP to take the race.Distance and Travel The distance options selectable in the APP are:5k,10k,21k and 42k.As it is a virtual test,it is very important to make sure that the chosen route allows good mobile coverage for the correct functioning o
5、f the GPS.Registration Registration has a cost of 15 euros,which includes participation in the race and a donation of 5 euros to refugee families.Participants can,if they choose,purchase the official pack of the test(T-shirt,scar,and bib)for the price of 25 euros.Acceptance Registration is personal
6、and non-transferable and implies acceptance of these regulations.Runners who are not registered or run without the APP will not be admitted.1.What can we learn about the 2021 Sahara Marathon?A.It is a big family event.B.It provides a virtual tour.C.It raises money for charity.D.It will be held in th
7、e desert.2.How much should a runner pay if he wants to register for the race?A.15 euros.B.20 euros.C.25 euros.D.40 euros.3.What are runners required to do in the race?A.Choose safe routes.B.Wear casual clothes.C.Run with the official app.D.Transfer registration in time.B Recently,I read about a prom
8、otion from a home builder in San Diego where consumers(消费者)could buy a 4,000 square foot house for$1.6 million and get a smaller home bythe developer valued at$400 thousand for free.This sounds like a fantastic deal,but I am alwayswary ofany promotion labeled(给加标签)with“buy one get one free”,and here
9、 is why.Oftentimes,“buy one get one free”ends up being“buy two at the regularprice”.For example,I often see“buy one get one free”ads for orange juice at the supermarket,but the first box always costs over$5.00.At the same time,the juices not in the promotion are selling for$2.50 to$2.99 a box.Anothe
10、r problem with“buy one get one free”is that oftentimes you do not need the second item.I only consume one gallon of milk every two weeks.If I were talked into buying a second gallon in a“buy one get one free”promotion,then the second gallon would go bad before I have time to consume it.That creates
11、waste instead of savings.In the case of theSan Diegodeveloper,so far they have received one offer on their expensive houses,but the buyer does not want the cheaper house for free.Instead,he wants the value of the smaller home taken away from his purchase price.I think this guy is quite wise because
12、he saw right through the marketing of“buy one get one free”.Finally,it is up to you to see how much you need and how much you are willing to spend.Knowing the regular price of things also helps you in deciding whether a“buy one get one free”promotion is truly a great deal.4.What does the underlined
13、part“wary of”in Paragraph 1 probably mean?A.annoyed at B.careful about C.familiar with D.puzzled about 5.Why does the author mention milk in Paragraph 3?A.To show that there are many promotions of food.B.To suggest that people think twice before they shop.C.To prove that the second item isnt always
14、as good as the first one.D.To show that people often buy more than they need in the promotion.6.What does the house buyer want to do?A.Buy the smaller house only.B.Get the smaller house for free.C.Buy the larger house for$1.2 million.D.Buy both the larger and smaller houses for$2 million.7.How does
15、the author organize the text?(P:Paragraph)A.B.C.D.C Barred owls(大林鸮猫头鹰)are a large species native to eastern North America,but they began moving west at the start of the 20th century.By 1973,large numbers of barred owls had arrived in the western state ofWashington.Later they moved south intoOregona
16、ndCalifornia.In parts of thePacific Northwest,the owls are now believed to be causing a drop in the population of a smaller,less aggressive bird:the northern spotted owl.In many ways,the barred owl is the spotted owls worst enemy.The barred owl has more babies per year and eats the same animals,like
17、 squirrels and wood rats.And their numbers are now larger in many parts of the spotted owls traditional territory.David Wiens is a biologist with the U.S.Geological Survey,a federal agency that studies the Earth and its natural resources.He and other officials are doing something unusual to protect
18、spotted owls:killing barred owls.It is a controversial,experimental program.More than 2,400 barred owls have already been shot.Wiens is the son of a well-known bird expert and grew up with the fascination for birds.He has mixed feelings about the program.Its a little distasteful,I think,to go out ki
19、lling barred owls to save another owl species,he says.But he adds,“We knew that barred owls were out competing spotted owls and their numbers were growing too fast.To catch barred owls,officials put digital bird callers on the ground.Then they step back and wait as several sounds from the devices fi
20、ll the air.All of this happens in the dark of night.Barred owls dislike other birds in their territory,so they will fly down and chase other owls out.That is when Wiens and his team try to shoot them.8.Whats the main problem with spotted owls?A.They are being starved to death.B.They have more babies
21、 each year.C.They are invaded by another bird.D.They are hunted by man.9.Why are barred owls being killed?A.They are eating the spotted owls.B.They are killing each other to survive.C.They are putting the spotted owls in danger.D.They are destroying large areas of forests.10.Why did the officials re
22、lease the bird sounds?A.To kill barred owls.B.To puzzle barred owls.C.To protect barred owls.D.To frighten barred owls.11.What can be the best title for the text?A.Killing One Animal to Save Another.B.Keeping the Balance of Nature.C.Protecting Birds in Danger.D.Preventing Birds from Playing Fair.D T
23、he cumulative rainfall in Henan province during the four days was the highest since the province has records,the provincial meteorological service said.The rain was heaviest in the provincial capital,Zhengzhou,for a short period on Monday and Tuesday.Northern,western and central parts of Henan also
24、experienced downpours,the service said.Zhengzhous biggest one-hour precipitation(降水量)201.9 mmbetween 4 and 5 pm on Tuesdaywas also the highest on the Chinese mainland.The previous record was 198.5 mmin the village of Linzhuang in Zhumadian in August 1975,the National Meteorological Center said.The c
25、itys precipitation duringthe four days exceeded that of its average annual precipitation,the center said.Chen Tao,chief forecaster at the National Meteorological Center,said abundant water vapor(水蒸气)brought by Typhoon In-Fa and the provinces special geographical features led to Henans rain.“Partly a
26、ffected by the typhoon,large amounts of water vapor have been transported to Chinas inland areas,including Henan,”he said.From Thursday to Monday,rain was forecast to continue in Henan.However,rainfall will gradually subside in Zhengzhou and the provinces northern and central regions,though the stor
27、ms will increase the risk of mountain torrents and other geological disasters.By Monday,lighter rain is forecast for parts of Henan,the provincial weather service said.However,local authorities are still urged to bevigilantand prepare to prevent or cope with flooding and other possible disasters.Pre
28、dicting such weather events remains a challenge worldwide because it involves many meteorological phenomena,the center said.“The formation of this kind of extreme weather,including rainstorms and high temperatures,is complex,”Chen said.“We still lack effective solutions and methods for such forecast
29、ing”,he said.“We are now putting a lot of effort into tackling the difficulty.We believe that as the technology improves,we can better forecast the events.”12.What message does the author mainly want to convey in the first paragraph?A.heavy rain fell in Zhengzhou.B.The rain in Henan lasted four days
30、.C.Zhumadian also suffered the similar heavy rain.D.Henan experienced the biggest rainfall of all time.13.What can be indicated from Chen Taos words?A.It is not easy to forecast the extreme weather.B The rain of Henan is mainly caused by Typhoon In-Fa.C.The center hasnt put a lot of effort into solv
31、ing the problem.D.Rainstorms and high temperatures can account for the heavy rain.14.What does the underlined word“vigilant”probably mean?A.Relaxed.B.Alert.C.Reluctant.D.Communicative.15.Where might the text be most probably taken from?A.history book.B.A novel.C.A news report.D.A science magazine.第二
32、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 Trees are one of the oldest living things on earth.Trees are important for life as they provide food and oxygen.The importance of trees continues to increase and more benefits of trees are being discovered as their role expands to sa
33、tisfy the needs created from us human beings.The forests and trees are planted to make the world look better and more beautiful._16_Some of them are as follows.Trees can clean soil and control soil erosion(侵蚀).Poisonous chemicals and pollutants from various factories enter into the soil,thus causing
34、 soil pollution._17_Trees and plant roots bind(捆绑)the soil and thus reduce soil erosion.Also they store rainwater and reduce sediment(沉积)deposits.Trees play an important role in reducing the greenhouse gases.They consume carbon dioxide and produce oxygen._18_For example,a fully grown tree produces o
35、xygen which is sufficient for10 people for a complete year.Also,they act as filters of the air that we breathe.Trees are of commercial importance.Trees satisfy the need of fuel for cooking in many areas around the world.Trees also provide wood for furniture and hundreds of household items._19_Also,t
36、rees produce a number of fruits and nuts which are sold at market.Some trees are even used to make medicines._20_They provide shelter and food for a number of animal species across the globe.Trees are especially important as they form green corridors connecting habitats with each other and with the
37、countryside beyond.A.Without trees our planet cannot be considered a place for living.B.In fact,trees play different roles in our environment.C.This lowers global warming.D.Wood pulp(浆)is used for making paper in industries.E.Trees have the ability to store them or change them into less harmful form
38、s.F.Trees have beautified our planet.G.Trees act as the habitat for wild animals.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 Since childhood Id been accustomedto a life where I would be afraid of everything.I saw myself as an insecure and_21_individu
39、al.But then,all too suddenly,something_22_,and over a period of 6 months I firmly managed to_23_one of my diets,and lost 30 pounds.This_24_me from overweight straight down to underweight.The_25_taught me that I could change myself.I heard about a public speaking_26_going on at my university,and for
40、the first time,I actually managed to_27_the courage to go there.It was_28_.For the first time I shared my story in front of dozens of people_29_judging me,and suddenly all the_30_fears about speaking publicly started_31_.This taught me I could get rid of my_32_.My road to change,from that point on,w
41、ent from a（n）_33_to a neat and orderly highway,and I started changing rapidly.Using the fact that I could get rid of my fears,I started working on them one by one.My fear of_34_strangers,my fear of asking simple_35_I should“make_36_of bymyself”,my fear of hanging out with people.All of them were gon
42、e.And I still continue to_37_to this day without_38_.At the end,my weakness of being socially incompetent for so long became my_39_as it taught me how to change,as I now fight to become far better than the_40_,and the best I can be.21.A.unconfident B.dissatisfied C.surprised D.thoughtful 22.A.missed
43、 B.jumped C.polished D.struck 23.A.account for B.apply for C.stick to D.see to 24.A.produced B.brought C.exposed D.introduced 25.A.failure B.adventure C.experience D.connection 26.A.organization B.instruction C.idea D.event 27.A.gather B.observe C.attract D.balance 28.A.offering B.liberating C.blind
44、ing D.confusing 29.A.impatiently B.hopefully C.potentially D.cheerfully 30.A.temporary B.comfortable C.limited D.random 31.A.accelerating B.disappearing C.removing D.convincing 32.A.fears B.urges C.appointment D.anger 33.A.chance B.order C.moment D.mess 34.A.treating B.witnessing C.greeting D.rememb
45、ering 35.A.occasions B.questions C.purposes D.promises 36.A.sense B.notes C.fun D.knowledge 37.A.progress B.promote C.complain D.research 38.A.example B.discovery C.stop D.information 39.A.feeling B.height C.contribution D.strength 40.A.typical B.average C.extra D.precious 第二节（共 10 小题；每小题 1.5 分，满分 1
46、5 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 The first UN Chinese Language Day at the United Nations_41._(observe)on Friday at UN Headquarters in New York in 2010.As the words most widely spoken language,it seems appropriate that Mandarin(普通话)has one day annually dedicated to it This _42._(official)marked
47、day of Mandarin language celebration was set by the United Nations as a way of celebrating the languages history and_43._(contribution)to the world.It is hoped that having one day annually to celebrate Mandarin will encourage more people around the world _44._(take)it up.With China likely to become
48、the largest economy in the world,it is important that the wider world becomes more interested_45._this wonderful language.Every year UN Chinese Language Day_46._(fall)on April 20.A great way to get_47._(involve)in the celebration is to join a Mandarin class.Attending one of the many Confucius Instit
49、utes_48._are set up by China in countries around the world is another good_49._(choose).The number of people learning Chinese is on_50._increase in Chinas neighboring countries,such as Korea,Japan and Vietnam.第四部分 写作（共两节，满分 40 分）第一节短文改错（满分 10 分）51.假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有 10 处语言错误，每 句
50、中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。增加:在缺词处加一个漏字符号()，并在其下面写出该加的词。删除:把多余的词用斜线（）划掉。修改:在错的词下划一横线,并在该词下面写出修改后的词。注意:1.每处错误及其修改均仅限一词；只允许修改 10 处，多者（从第 11 处起）不计分。We students often feel stressed because we have too many homework to do every day,We are such busy studying all day that we dont have any free time to do