1、PAGE PAGE 7考點規(guī)范練32.閱讀理解AEach year,hikers and mountain bikers get lost or injured in the wilderness.Search and rescue efforts can involve 20 or more people.But a new “smart” drone(無人機) can follow hiking trails(小路) without a pilots assistance.This could allow rescuers to search more efficiently.Scient

2、ists outfitted a craft with a single camera.As the drones “eye”,the camera pointed forwards.But having an eye wasnt enough.The drone also needed a “brain” to understand what it was seeing.And that brain would have to recognize what constitutes a trail.Camera images,however,can be very difficult for

3、a computer to interpret,study leader Alessandro Giusti notes.So he and his team used photos of forest trails to train their drones neural network(神經(jīng)網(wǎng)絡(luò)).They attached three GoPro cameras to a single headband.One camera pointed straight forward.The other two were directed 30 degrees to the right and l

4、eft of the centre.A hiker put the package on and then hit the trails in a forested part of Switzerland.Over several weeks,the cameras recorded a total of 8 hours of video covering 7 kilometres of trails.The researchers then divided the video into individual still images to train the neural network.T

5、he network learned to identify what a trail looked like.The team then tested the program with unused images from the video.The computer did a slightly better job than the people had in correctly classifying the images.This meant the drone was ready to navigate the real world on its own.Giusti and hi

6、s team took their new “smart” device to a forest with trails that had not been used in the drones training.It flew along the path,constantly adjusting its direction based on the images coming in through its camera.The drone didnt perform as well in real-life as it did in the lab,Giusti admits.Thats

7、because the drones camera took lower-quality images than the cameras that had been used to train it.As a result,the images being taken by the drone looked different,he explains.This confused its neural network.“Its an exciting use for neural networks,” says Christopher Rasmussen,a computer-vision sc

8、ientist who was not involved with the study.“However,the problems faced in the experiments show that there are still some important issues to be worked out.”1.The “smart” drone has been created in order to help .A.find travelers who get lostB.ensure the safety of travelersC.deliver necessities to tr

9、avelersD.show travelers the way to a place2.While being tested to classify the images in the lab,the computer .A.did as well as the peopleB.did a lot better than the peopleC.did much worse than the peopleD.did a little better than the people3.Why didnt the drone perform well in the forest?A.The ligh

10、t in the forest was very poor.B.The trees or bushes covered the trails.C.The drone couldnt fly very low there.D.The pictures taken were of poor quality.4.What is Christopher Rasmussens attitude towards the results of the experiments?A.Critical.B.Doubtful.C.Objective.D.Optimistic.BShopping centres,st

11、adiums and universities may soon have a new tool to help fight crime.A California company called Knightscope says its robots can predict and prevent crime.Knightscope says the goal is to reduce crime by half in areas the robots guard.William Santana Li is the chief executive officer of Knightscope.H

12、e says,“These robot security guards will change the world.Our planet has seven billion people on it.Its going to quickly get to nine billion people.The security equipment that we have globally is just not going to develop that fast.The companys Autonomous Data Machines can become the eyes and ears o

13、f law enforcement (執(zhí)行).”“You want it to be machines plus humans.Let the machines do the heavy and sometimes dangerous work and let the humans do the strategic decision-making work,so its always working all together.”The machines are one and a half meters tall and weigh 136 kilograms.They do not carr

14、y weapons but they have day-and-night time video cameras which are able to turn 360 degrees and can also sense chemical and biological weapons.Some people may become concerned about their privacy,especially in connection with the video recordings.Some people may worry that such recordings will appea

15、r on the Internet.Eugene Volokh,a law professor at the University of California,says the machines have to be used in the right way and it will be interesting to see how state laws deal with this kind of video.William Santana Li says there is a long waiting list for the robots in the US.Workers in th

16、e company are working overtime to meet the demands of the market.At least 25 other countries are also interested in these robotic security guards.5.What can this new tool do for humans?A.Make strategic decisions.B.Keep watching day and night.C.Carry heavy weapons.D.Stop crime autonomously.6.Why are

17、people worried?A.Their privacy may be let out.B.The robots are very expensive.C.Robots will replace humans.D.They will be out of work soon.7.Which of the following can be the best title of the text?A.Robots Are Becoming More PopularB.Robots Contribute a Lot to the WorldC.Robots Are in Great Demand N

18、owD.Security Robots Could Help Cut Crime.七選五閱讀Which is much more significant to you when you are finding a job?Working experience or an advanced degree?Well,I believe diverse people have different answers.1Here are some reasons:Above all,most of jobs dont require such a high degree,which means just

19、some work,such as theoretical physics,archaeology,or literature,needs high academic qualification.2For example,when you are offering a department manager post,and there is a man who has already been a manager for three years but only has a masters degree and an inexperienced person with a doctors de

20、gree,which one would you choose?Definitely the first one for the manager who doesnt acquire a doctors degree but has rich working experience.3 For instance,Bill Gates,who was the richest man in the world and one of the most successful merchants.What a wise choice when he decided to abandon studying

21、so that he could gain more working experience instead of a doctors degree!Or Steve Paul Jobs,who discontinued his study at the age of nineteen in order to become a member of a computer company just like Bill Gates.45Maybe you shouldnt have to gain an advanced or high degree,but that doesnt mean noth

22、ing.Probably a bachelors degree is still necessary in this fiercely competitive society.All in all,I think rich working experience is much more important than an advanced degree.A.However,a degree is still required for most people.B.Meanwhile,rich working experience will draw more attention.C.Second

23、ly,plenty of experience will bring you success much earlier.D.In my view,either working experience or an advanced degree counts.E.As for me,I will say working experience without hesitation.F.As a matter of fact,more people with rich working experience become successful.G.From all of these,we can see

24、 that an advanced degree isnt so necessary as working experience.書面表達假設(shè)你校學(xué)生會定于4月10日組織一次高三學(xué)生的登山活動,請根據(jù)下面表格內(nèi)容,以學(xué)生會的名義用英語寫一則通知,歡迎同學(xué)們積極參加。目的鍛煉身體,放松心情地點邙山內(nèi)容與要求1.早上7:20在校門口乘公交車出發(fā),晚上7:00返回;2.上午登山,中午在山頂野餐,下午分組自由活動;3.拍照、記錄,之后參加校攝影展或征文比賽。溫馨提示1.自帶午餐和飲用水;2.4月5日前到學(xué)生會報名。注意:1.詞數(shù)100左右;2.可以適當(dāng)增加細節(jié),以使行文連貫;3.通知的格式已給出,不計

25、入總詞數(shù)。參考詞匯:邙山Mangshan Mountain;報名sign up;征文比賽essay contestNotice_Students UnionMarch 30考點規(guī)范練32(選修7Unit2).【解題導(dǎo)語】本文是說明文。瑞士科學(xué)家嘗試研究一款無人機來幫助營救迷路的旅行者。1.A細節(jié)理解題。由第一段中的“.followhikingtrailswithoutapilotsassistance.Thiscouldallowrescuerstosearchmoreefficiently.”可知,科學(xué)家研制這款無人機是為了使其幫助救援人員找到迷路的旅行者。2.D細節(jié)理解題。由第四段中的“T

26、hecomputerdidaslightlybetterjobthanthepeoplehad.”可知,在實驗室測試時,電腦比人在照片分類方面做得稍好一些。3.D細節(jié)理解題。由倒數(shù)第二段中的“Thatsbecausethedronescameratooklower-qualityimagesthanthecamerasthathadbeenusedtotrainit.”可知,無人機之所以在森林中測試效果不好是因為其在森林中拍的照片質(zhì)量差,不容易識別。4.C推理判斷題。由最后一段中的“Itsanexcitinguseforneuralnetworks.”及“However,theproblems

27、facedintheexperimentsshowthattherearestillsomeimportantissuestobeworkedout.”可推斷,克里斯托弗拉斯馬森對該研究成果持客觀態(tài)度?！窘忸}導(dǎo)語】本文是一篇說明文,主要介紹了一款新型的預(yù)防犯罪的機器人。5.B細節(jié)理解題。根據(jù)第五段的第二句“Theydonotcarryweaponsbuttheyhaveday-and-nighttimevideocameraswhichareabletoturn360degreesandcanalsosensechemicalandbiologicalweapons.”可知,這種機器人的功能就

28、是能夠日夜不停地執(zhí)勤站崗。6.A細節(jié)理解題。根據(jù)倒數(shù)第二段的第一句“Somepeoplemaybecomeconcernedabouttheirprivacy,especiallyinconnectionwiththevideorecordings.”可知,一些人擔(dān)憂這種機器人所攜帶的攝像機會記錄其隱私,其隱私有可能會被泄露。7.D主旨大意題。根據(jù)文章第一段并結(jié)合全文的整體內(nèi)容可推知,本文主要介紹了一種新型的預(yù)防犯罪的機器人。.【解題導(dǎo)語】本文是一篇議論文,論述了工作經(jīng)驗是工作成功的最重要的因素這一論點。1.E根據(jù)空處位置可知,空處承上啟下,根據(jù)該段第二句“Workingexperienceoranadvanceddegree?”可知,空處提出自己的觀點并引出下文,故E項與此處匹配。2.B根據(jù)本段最后一句“Definitelythefirstoneforthemanagerwhodoesntacquireadoctorsdegreebuthasrichworkingexperience.”并結(jié)合空后所列舉的例子可知,該例旨在證明豐富的工作經(jīng)驗在應(yīng)聘時更受歡迎,故B項與此處匹配。3.C根據(jù)空處所在的位置可知,空處為本段的主題句;根