2021届上海美国学校高三英语上学期期中考试试卷及答案.pdf

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1、2021 届上海美国学校高三英语上学期期中考试试卷及答案 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 Amid the coronavirus outbreak,the U.S.Department of Homeland Security recommends having at least a two-week supply of water and food.Potatoes Shelf life：2 to 5 weeks if stored in a cool,d

2、ry,dark place Yukon Gold,red,and fingerling potatoes will last from two to three weeks.Larger white potatoes can last for three to five weeks.Sweet potatoes have about the same shelf life.Dont store them next to onions,however.The two might go together well in cooking,but raw,each gives off gases an

3、d moisture that might cause the other to spoil faster.Tea Shelf life：6 to 12 months past sell-by date Dried tea leaves,whether loose(in a sealed container)or in teabags(in an unopened box)can easily last a year or more if they re not subjected to damp or humidity.However,the tea does tend to lose fl

4、avor over time.Peanuts Shelf life：1 to 2 months Peanuts in their shell,especially when kept cool and dry,are perfectly happy in the cupboard for as long as two months.Canned fruits and vegetables Shelf life：1 to 2 years past sell-by”date Canningis an extremely efficient means of preserving food.Gene

5、rally speaking,if canned foods arent subjected to extreme heat,their contents should stay good for two years or more.Be aware,however,of dented cans or those with swollen tops,which may indicate the presence of bacteria inside.1.Which can go bad faster if stored with onions?A.Potatoes.B.Tea.C.Peanut

6、s.D.Canned fruits and vegetables.2.What is special about tea?A.The flavor of tea can always remain the same.B.Tea leaves are better to be preserved in an open jar.C.Tea leaves should be kept away from the state of being wet.D.The maximum length of time that tea can be stored is 6 months.3.What may s

7、horten the sell-by”date of canned foods?A.Shapes of cans.B.Categories of foods.C.Decline of the temperature.D.Exposure to high temperature.B Nowadays medical technology seems to be advanced enough for doctors to perform brain transplants(移植).Though this procedure(程序)has only been successfully perfor

8、med on animals so far,doctors are still hopingto perform this procedure on humans.However,in my opinion,brain transplants should not be performed at all,especially not on humans because of the large number of problems and side effects that could come along with.Hopefully these dangerous side effects

9、 will convince doctors not to perform this procedure on humans.Despite many benefits technology brings.I do not think this medical technology of brain transplants will help.We were all born with one brain and through childhood to adults our mind developed into who we are,so if with a different brain

10、 we would no longer be unique.A person with a different brain would seem to be a total stranger and in many ways they would be.No one should steal our identity from us,even if we are seriously injured,and change it to a completely new one.Also for the people who have died with healthy brains,that wa

11、s their identity and it should not be given to anyone else.Another problem with brain transplants is how doctors can choose what are“healthy”or“normal”brains.An elderly person who has died would have an aged brain that would not be as efficient as younger persons brain.Then would doctors have to fin

12、d healthy brains of the same age as the person who needs it?This could also bring up other factors such as intelligence,sex,or physical problems that a person might have had before death.Also another problem might be how long a brain can be kept“alive”after death and how it can be kept“alive”without

13、 damage.Overall.my feelings about this operation are that it should not be done on humans until doctors have overcome all the problems and challenges that stand in their way of making human brain transplants successful.4.Why does the author think brain transplants should not be performed at all?A.Th

14、e cost of the operation is extremely high.B.Doctors are not able to perform brain transplants.C.A good many problems and side effects may arise.D.This procedure has only been successful on animals 5.What is the second paragraph mainly about?A.People shouldnt give their healthy brains to others.B.Hav

15、ing a brain transplant means losing ones identity.C.Transplanting brains is changing old brains into new ones.D.Having brain transplants indicates stealing identity from others.6.What is the writers attitude towards brain transplants an humans?A.indifferent B.favorable C.disapproving D.objective 7.W

16、hat is the authors purpose in writing the passage?A.To encourage brain donation.B.To stress the importance of brain operation.C.Toargue against brain transplants on humans.D.To introduce the technology of brain transplants.C Richard Campbell is a secondary school student.He is15 years old.He lives i

17、n a small town in the north ofEngland.Every morning,he gets up at eight oclock,puts on his uniform and walks to school.One hour later,the lessons start.The students usually study maths,English,history and geography in the morning.They usually study music and drawing and they play sports after lunch.

18、They have a ten-minute break between classes.They also spend a long time in the school library,reading books and doing their homework.Richard likes his school very much.His favourite subjects are English and geography,but he doesnt like maths because he is not good at it.Richard and all his friends

19、spend the whole day at school.Lunch is at one oclock.He doesnt like the food that the school serves.This is why he often brings a packed lunch from home.He always has his lunch in the dining hall,but some of his friends sometimes eat in the courtyard or outside the school gate.At weekends,he always

20、goes out with his friends because he doesnt go to school.On Saturday,he always goes to the cinema or to the sports centre.On Sunday,he just goes for a walk with his dog.8.What time do Richards lessons begin in the morning?A.At 8:00.B.At 8:30.C.At 9:00.D.At 9:10.9.What does Richard like best?A.Maths

21、and English.B.English and geography.C.History and maths.D.Geography and history.10.Where does Richard have lunch on weekdays?A.In the dining hall.B.At home.C.In the courtyard.D.Outside his school gate.11.What does Richard always do on Saturday?A.He reads and does homework.B.He goes to see films or d

22、oes sports.C.He walks his dog or does exercise.D.He spends a long time in the library.D Over the years,NASA has successfully sent several rovers(飞行器)to Mars.While the science laboratories continue to provide important information on the Red Planet,they keep the space exploration rovers staying close

23、to the original landing place.To get a more comprehensive(详尽的)view of Mars,the US Space Agency plans to make a small test helicopter with the Mars 2020 Rover,which will be sent off in July 2020.The football-sized“marscopter”weighs about four pounds.It can fly at about ten times the speed of helicopt

24、ers on Earth.The light weight and fast speed are important for the helicopter to be able to fly in the thin Mars atmosphere,which is about just one percent of that of Earth.“To make it fly in that thin Mars atmosphere,we had to make everything ready,and make it as light as possible while being as st

25、rong and powerful as it can possibly be.“Mimi Aung,Mars helicopter project manager,said in a meeting.Upon landing on the Red Planet,the Mars 2020 Rover will find a proper location to send of the helicopter.The helicopter will start with a short climb,no higher than 10 feet,and hover(盘旋)for just 30 s

26、econds before landing back on the Mars surface.If all goes well,five more flights of longer distances,for 90 seconds each,will be conducted over the next 30 days.The short journeys will be recorded by a small camera and sent back to the scientists on Earth.If the plan goes on well,the first helicopt

27、er to fly in another world,will open up a whole new way to explore Mars.The Mars helicopters first flight will be a great invention.For those of us whose research is about flight,that would be a wonderful,historic moment.12.To fly in thin Mars atmosphere，we should make the helicopter_.A.strong and h

28、eavy B.heavy and fast C.light and fast D.strong and slow 13.How many times will the helicopter fly?A.Three times B.Four times C.Five times D.Six times 14.What can we learn from the last paragraph?A.Its interesting to fly in another world.B.I s important to fly in another world.C.The plan to fly the

29、helicopter goes on well.D.The helicopters first flight is successful.15.What may be the best title for the passage?A.To send a helicopter to Mars in 2020 B.To send a rover to Mars in 2020 C.To live in the thin Mars atmosphere D.To send back records to scientists 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

30、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 We spend so much time waiting to be loved,hoping love will find us,and looking for that speciallove.Unfortunately,thats not usually how life works.To be loved,you should love and respect yourself as much as you do others.In order to love someone,you should love yourse

31、lf.Stop comparing（比较）yourself to others._16_We all have different gifts.When you compare yourself to others for what they have,whether it is a car,a house,or a job,it makes you feel bad about yourself.Really be grateful about everything you have.Gratitude keeps your heart open to love.Practice recei

32、ving love.To truly love is to be able to receive it.When someone loves you,does some kind deeds to you,or says kind words,accept it._17_Know that you are worthy of love.It is important to accept a gift of love by others.You give yourself a chance to learn more about yourself that you are lovable._18

33、_ _19_Write about your experiences,good and bad.When you write down good experiences,allow yourself to feel those feelings.When you remember bad experiences,allow yourself to feel self-compassion.Compassion is not self-pity,but rather willingness to accept ones own pain and regret.Stop trying to be

34、perfect.Stop blaming（责备）yourself for being less than perfect._20_Just follow all the steps above and dont let anyones expectations of you put any pressure on you.A.Do not feel sorry about it.B.Everyone on the earth is unique（独一无二的）.C.Allow yourself to feel the love that has come your way.D.Appreciat

35、e yourself.E.Keep a diary.F.Always do your best,but not reaching perfection is NOT failure.G.You give someone a joy of giving by loving you.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 I was in deep thought.The year drew to a_21_.What would I accompli

36、sh in the next?I looked up at the_22_in the distance.They were white now.Not long ago,they were brown.In the time Ive lived inIdaho,Ive had the opportunity to watch the_23_of seasons make their changes on those mountains I am never_24_of seeing.My first_25_of them came in September.The sides of the

37、mountains were painted green with the leaves.Near the top were pines.The days moved on.The weather_26_.The leaves browned.The mountain changed.Fall_27_to winter.I stood and watched the top of the mountains turn a blinding white.Im not a skier,but I imagined the excitement of_28_down the side of thos

38、e mountainsfree,fast,and_29_.Winter turned to_30_.The snow in the valley_31_.The weeks passed,the green in the valley flowed_32_up the slopes like a reversed waterfall.The mountains were as I first saw them,green and leafy.On this New Years Eve,the mountains are white again.I saw so many changes,but

39、 were they changes?The mountains are never changing.Like people,they only changed_33_to fit the weather.They didnt allow outside influences to_34_what lie beneath their coats of changing color1 s.They were always the same.Im in my third season of life.A little snow has_35_at my peak.My clothing chan

40、ged to_36_my seasons.Next year and all my years to follow,I want to be as constant as a mountain.Although my looks change,I want to be_37_.My body will change coats many times,but when my day is done,I want people to say,“No matter what the seasons of life_38_,he never changed inside.He never_39_the

41、 pressures of the seasons or the weathers of life to change what he was underneath.He was a_40_mountain you could rely on.”21.A.close B.change C.practice D.agreement 22.A.ruins B.remains C.trees D.mountains 23.A.variety B.order C.stress D.cycle 24.A.tired B.informed C.accused D.convinced 25.A.sight

42、B.intention C.scenery D.desire 26.A.wanned B.cooled C.improved D.continued 27.A.contributed B.gave way C.subscribed D.gave in 28.A.throwing B.slipping C.climbing D.battling 29.A.frustrated B.motivated C.panicked D.thrilled 30.A.spring B.summer C.fall D.winter 31.A.multiplied B.disappeared C.stayed D

43、.thickened 32.A.steadily B.immediately C.gradually D.casually 33.A.rules B.color1 s C.coats D.measures 34.A.uncover B.change C.expose D.remove 35.A.melted B.slimmed C.gathered D.frozen 36.A.instruct B.confirm C.fit D.fight 37.A.inspiring B.reliable C.challenging D.brave 38.A.fetched B.took C.present

44、ed D.rewarded 39.A.requested B.expected C.meant D.allowed 40.A.naturally B.consequently C.definitely D.instantly 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 Directions:After reading the passage below,fill in the blanks to make the passage coherent and grammatically correct.For th

45、e blanks with a given word,fill in each blank with the proper form of the given word;for the other blanks,use one word that best fits each blank.Geography Makes a Silent Return In many ways geography is the forgotten science.Even the word“geography”tends to make people think of students_41._(label)m

46、aps in social studies class.But that hasnt always been true.Before the internet,the world was a mysterious place.In many cases,people didnt really know_42._existed a few miles from home.Studying geography offered people a way to learn about the world.Geography,_43._(define)as the study of Earth,has

47、always had a focus on maps.But mapping hasnt always been easy.In the days before satellites,mapmaking required years of dangerous and difficult work.But mapping also meant a chance at adventure and fame.Geography became the subject of explorers.People were eager to hear about the new things and plac

48、es_44._geographers had studied.National Geographicis a great example of this interest.For more than a hundred years,the magazines stories and pictures_45._(tell)people about our exciting world.Technology has changed the way people think about geography.Travel is now easy.The internet makes informati

49、on simple_46._(find).We trust our phones to take us_47._we want to go.EvenNational Geographichas expanded beyond traditional geography,but that doesnt mean geography has become_48._(important).While some apps are obvious examples of modern geography in action,geography remains important in moresubtl

50、e(不易察觉的)ways,too.Geography,which helps house hunters,solves public health issues,and determines good locations for new businesses,_49._(use)to plan communities as well.Like traditional geographers,modern geographers study many different topics.That makes them well-suited for many different jobs and