2020届成都市第十七中学高三英语下学期期末试题及答案解析.pdf

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1、20202020 届成都市第十七中学高三英语下学期期末试题及答案解析届成都市第十七中学高三英语下学期期末试题及答案解析第一部分第一部分阅读（共两节，满分阅读（共两节，满分4 40 0 分）分）第一节（共第一节（共 1515 小题；每小题小题；每小题 2 2 分，满分分，满分 3030 分）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 AWhile Jennifer was at home taking an online exam for her business law class,a monitor（监控器）a fewhundred miles away was

2、watching her every move.Using a web camera equipped in JennifersLos Angelesapartment,the monitor inPhoenixtracked howfrequently her eyes moved from the computer screen and listened for the secret sounds of a possible helper in theroom.Her Internet access was locked remotely to prevent Internet searc

3、hes,and her typing style was analyzed tomake sure she was who she said she was:Did she enter her student number at the same speed as she had in thepast？Or was she slowing down？In the battle against cheating,this is thecutting edgeand a key to encourage honesty in the booming field ofonline education

4、.This technology gives trust to the entire system,to the institution and to online education ingeneral.Only with solid measures against cheating,experts say,can Internet universities show that their examsand diplomas are valid that students havent searched the Internet to get the right answers.Altho

5、ugh online classes have existed for more than a decade,the concern over cheating has become sharperin the last year with the growth of open online courses.Private colleges,public universities and corporations arejumping into the online education field,spending millions of dollars to attract potentia

6、l students,while also takingsteps to help guarantee honesty at a distance.Aside from the web cameras,a number of other high-tech methods are becoming increasingly popular.Among them are programs that check students identities using personal information,such as the telephonenumbers they once used.Oth

7、er programs can produce unique exams by drawing on a large list of questions and can recognize possiblecheaters by analyzing whether difficult test questions are answered at the same speed as easy ones.As in manyuniversity classes,term papers are scanned against some large Internet data banks for ch

8、eating.1.Why was Jennifer watched in an online exam?A.To correct her typing mistakes.B.To find her secrets in the room.C.To keep her from dishonest deeds.D.To prevent her from slowing down.2.What does the underlined expression cutting edge in Paragraph 3 probably mean?A.sharpening toolB.advanced tec

9、hniqueC.effective ruleD.dividing line3.How can some programs find out possiblecheaters?A.By scanning the Internet test questions.B.By checking the question answering speed.C.By producing a large number of questions.D.By giving difficult test questions.BSmart speakers have proven to be handy devices

10、in hospitals,allowing patients to control independently.And now,researchers from theUniversityofWashingtonhave developed an artificial intelligence system thatenables these devices to monitor heartbeats.Using technology to remotely monitor heart rates isnt new.These days most smartwatches and fitnes

11、strackers are capable of it.The good thing here is that researchers have figured out a way to use the microphonesin smart speakers to do it without requiring physical contact.In a study published inCommunications Biology,the researchers had the smart speakers send out signals thatcouldnt be heard wh

12、ich were then reflected off a persons body.They then analyzed these signals to identify smallchest wall motions related to heartbeats,as well as separate those signals from surrounding noise and breathing.For this particular proof of concept setup,the researchers tested this smart speaker on 26 heal

13、thyparticipants and 24 hospitalized patients with various heart conditions,including atrial fibrillation（心房颤动）andheart failure.In both cases,the smart speaker was within 28-30 milliseconds of an ECG（心电图）,the goldstandard used in hospitals to discover arrhythmia（心律不齐）.Like smartwatches with advanced

14、heart features,using smart speakers in this way opens up the possibility forpassive,remote heart monitoring.ECGs,while highly accurate,require a visit to the doctor and several electrodes（电极）to be placed on the body.They,re not capable of continuous monitoring so youre limited to what it picksup at

15、that exact moment in time one reason why heart arrhythmia can be so hard to discover.Smartwatches are capable of passive,remote,continuous monitoring,but they require you to wear thedevice at all times to be effective.Its not something thats comfortable for everyone,especially when it comes tosleep

16、and for those with highly sensitive skin.Another issue is that these advanced smartwatches are expensive,while smart speakers are much cheaper.“If you have a device like this,you can monitor a patient on an extended basis and then developcorresponding care plans that satisfy the patient s needs,“sai

17、d Dr.Arun Sridhar,co senior author on the study.And the beauty of using this kind of devices is that they are already in peoples homes.”4.What does the author focus on in Paragraph 3?A.How the smart speaker works.B.Why the smart speaker is useful.C.The advantages of smart speakers.D.The importance o

18、f the study.5.Why is heart arrhythmia difficult to find?A.ECGs are not highly accurate.B.ECGs cant monitor continuously.C.Doctors know little about heart arrhythmia.D.An ECG test is hard to operate and expensive.6.Which statement best explains the characteristics of smartwatches?A.They are comfortab

19、le to wear.B.They are friendly to sensitive skin.C.They are effective and cheap.D.They are able to monitor remotely.7.What can we infer from the last paragraph?A.We need to invent more smart devices.B.Care plans are vital to patients with heart failure.C.Smart speakers could be contactless heart mon

20、itors.D.Different devices are needed to meet patients,demands.CSix Neanderthals who lived in what is now France were eaten by their fellow Neanderthals some 100,000years ago,according to fearful evidence of the cannibalistic(食人的)event discovered by scientists in a cave in the1990s.Now,researchersmay

21、 have figured out why the Neanderthals,including two children,became victims ofcannibalism:Global warming.While previous studies have examined Neanderthal remains to find proof of cannibalistic behavior,this is thefirst study to offer clues as to what may have led Neanderthals to become cannibals.Sc

22、ientists found that rapidchanges in local ecosystems as the planet warmed may have wiped out the animal species that Neanderthals ate,forcing them to look elsewhere to fill their stomachs.The researchers examined a layer of sediment(沉积物)in a cave known as Baume Moula-Guercy,insoutheastern France.In

23、that layer,charcoal(碳)and animal bones were so well-preserved that scientists couldreconstruct an environmental picture representing 120,000 to 130,000 years ago.They discovered that the climatein the area was likely even warmer than it is today,and that the change from a cold,dry climate to a warme

24、r onehappened quickly.“Maybe within a few generations”,study co-author Emmanuel said.As the animals that oncepopulated the landscape disappeared,some Neanderthals ate what they could find their neighbors.Cannibalism is by no means unique to Neanderthals,and has been practiced by humans and their s“f

25、rom theearly Palaeolithic to theBronze Age and beyond,”the study authors reported.The behavior adopted by thestarving Neanderthals in the Baume Moula-Guercy should therefore not be viewed as“a mark of bestiality(兽性)or sub-humanity”,but as an emergency adaptation to a period of severe environmental s

26、tress,according to thestudy.8.What does the study mainly focus on?A.The social behavior of Neanderthals.B.The reason for cannibalism among Neanderthals.C.The climate change in southeasternFrance.D.The influence of global warming on ancient animals.9.What can possibly be used to describe the climate

27、in southeasternFrance120,000 to 130,000 years ago?A.It was no warmer than it is today.B.It was first warm while later cold and dry.C.Its change was mild and went through quite a long process.D.Its change is a chief factor contributing to cannibalism.10.Which of the following might the study authors

28、agree with?A.Neanderthals cannibalism showed their bestiality.B.Cannibalism was actually a measure the Neanderthals had to adopt to survive.C.Neanderthals cannibalism guaranteed their rule over other tribes.D.Only Neanderthals were found to have cannibalism in human history.11.Where can you most pos

29、sibly find this passage?A.In a science journal.B.In a travel brochure.C.In a history book.D.In a geography book.DThe outbreak of the novel corona virus pneumonia(NCP)has disrupted the lives and work of nearly everyChinese person.However,a new trend has been on the rise:many have turned themselves in

30、to livestreamingusers orfollowers.According to Questmobile,a professional big data intelligence services provider in China,the audience forDouyin,Kuaishou and other livestreaming platforms surged to 574 million during the Spring Festival holiday,up 35percent from 2019.Confined at home,away from thei

31、r friends and loved ones,people turn to livestreaming to reach out to theworld.For them livestreaming can help them share their lives and interest with a global audience,which will givethem the sense of being“in the moment”.Even as viewers,they can also engage immediately with livestreamersby commen

32、ting and making suggestions.“When I comment on the livestreaming videos,Im not simply an audience member,but also an active part ofthe program.That gives me a sense of engagement,”an Internet user named Wang Hao told Peoples Daily.Livestreaming is not only for fun,but also a new tool for many busine

33、sses.Affected by the pandemic,manybusinesses had to stop their sales in physical stores.To meet their businessgoals and survive during these tryingtimes,many chose to livestream to revive their businesses.Joyoung,a leading maker of small kitchen appliances,is a good example.The company not only adde

34、d anumber of broadcasts each day to advertise their products,but also sharedthe menus that were beneficial tohealth.“The responses to our livestreaming shows have been well beyond expectations,”Kang Li,who overseesthe companys livestreaming unit,told China daily.“Its a natural opportunity to truly b

35、ond with our followers.”Like it or not,livestreaming is likely to go mainstream in China for both entertainment and business.12.What is the purpose of writing the second paragraph?A.To introduce some popular livestreaming platforms in China.B.To report data on the development of livestreaming in 201

36、9.C.To show that Chinese people spend too much time on livestreaming apps.D.To prove that livestreaming are becoming increasingly popular in China.13.What does Wang Hao think of commenting on livestreaming?A.It is boring to make comments.B.It is the only way to share viewers lives.C.It makes people

37、feel involved in the stream.D.It helps livestreamers improve themselves.14.What do paragraphs 5&6 mainly talk about?A.Livestreaming replaced physical stores in many areas.B.Many businesses turned to livestreaming platform for marketing.C.Livestreaming platforms faced challenges during the pandemic.D

38、.Livestreaming platforms made changes to their services.15.How does the author feel about thefuture of livestreaming？A.Positive.B.Uncertain.C.Disappointed.D.Confused.第二节（共第二节（共 5 5 小题；每小题小题；每小题 2 2 分，满分分，满分 1 10 0 分）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Some individuals are born with a gift for

39、 public speaking._16_Do you want to be a good public speaker?Here are some principles you must master.People want to listen to someone who is interesting,relaxed and comfortable.Too often when you stand upto give a speech,you focus on the“public”at the expense of the“speaking.”_17_Focus on the speak

40、ing.Talkdirectly to your audience,be yourself and make a connection.Even the most successful public speaker will make mistakes.Yet,the only one who cares about any mistake isthe one who is speaking.Peoples attention wanders constantly.In fact,most people only absorb about 20 percentof a speakers mes

41、sage.So,dont stop speaking when you make a mistake unless its a truly serious one._18_Your goal is not to be a perfect public speaker._19_And like everything else in life,that takes practice.Remember,even world champion athletes practice their skills on a consistent basis._20_Its rare to hear someon

42、e say,“I wish that speaker had spoken longer.“On the other hand,youprobably cant count the times that youve thought,“Im glad that talk is over.It seemed to go on forever!“Sosurprise your audience.Always make your presentation just a bit shorter than anticipated.Its better to leave yourlisteners wish

43、ing for more than shifting restlessly in their seats waiting for your speech finally to end.A.Do the opposite.B.You want to be an effective public speaker.C.You don t need to apologize for a minor slip.D.When it comes to public speaking,less is usually more.E.The objective of most speeches is to ben

44、efit the audienceF.Take the fear out of public speaking by focusing on your listenersG.However,the majority of people are effective speakers because they train to be.第二部分第二部分语言运用（共两节，满分语言运用（共两节，满分4545 分）分）第一节（共第一节（共 2020 小题；每小题小题；每小题 1.51.5 分，满分分，满分 3030 分）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T

45、his is a simple story but shows the power of our language.My daughter began to_21_a job when shewas in Senior 4 and shortly after that,she got an important_22_.On account of the financial crisis,thecompetition was_23_,but she said,“_24_I try,there will always be hope!”Luckily,she_25_the firsttwo rou

46、nds and entered the final interview.There were only three people left.The interview was very_26_,during which the interviewer only_27_with them for a while.The interviewer said to them,“All of you arevery excellent.Please go home and wait for our_28_!”A week later,my daughter received a message from

47、 the company,saying that she had not been_29_ajob.My daughter felt deeply_30_.But later in the evening,she excitedly informed me that she had receivedanother message,reading that she had been_31_by the company._32_,the first message sent to herwas also part of the_33_in the interview.The three appli

48、cants received the same message,but only mydaughters reply_34_the company,so she was given the job.I asked her,“How did all of you reply?”Mydaughter said,“One did not reply,the other said goodbye,and I said thank you.”Only then did I know that my daughters_35_came in that way.That is when you feel d

49、isappointed,donot_36_to say“thank you”to the one who disappoints you.Actually,it is a piece of cake to say“thank you”.But it is whether you are_37_to say it in a peaceful and grateful manner that does_38_.Saying“thankyou”shows_39_for others work and shows your grand generosity.Thus,while under the s

50、ame condition,you may get more_40_compared to others!21.A.carry outB.hunt forC.focus onD.dream about22.A.lessonB.messageC.noticeD.interview23.A.fierceB.freeC.openD.fair24.A.Now thatB.Even thoughC.As long asD.As though25.A.triedB.passedC.consideredD.observed26.A.interestingB.difficultC.successfulD.si