1、考点规范练32.阅读理解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(无人机) can follow hiking trails(小路) without a pilots assistance.This could allow rescuers to search more efficiently.Scientists outfit
2、ted 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 a computer
3、to interpret,study leader Alessandro Giusti notes.So he and his team used photos of forest trails to train their drones neural network(神经网络).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 left of the
4、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.The network
5、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 his team took
6、 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 because the
7、 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 scientist who
8、 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 travelersD.sh
9、ow 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 light in the fo
10、rest 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,stadiums and
11、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.He says,“The
12、se 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 of law enfor
13、cement (执行).”“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 carry weapons b
14、ut 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 appear on the In
15、ternet.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 the company a
16、re 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 people worr
17、ied?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 NowD.Securit
18、y Robots Could Help Cut Crime.七选五阅读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 some work,s
19、uch 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 degree,which
20、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 so that he
21、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 nothing.Probabl
22、y 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.Secondly,plenty o
23、f 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 that an ad
24、vanced degree isnt so necessary as working experience.书面表达假设你校学生会定于4月10日组织一次高三学生的登山活动,请根据下面表格内容,以学生会的名义用英语写一则通知,欢迎同学们积极参加。目的锻炼身体,放松心情地点邙山内容与要求1.早上7:20在校门口乘公交车出发,晚上7:00返回;2.上午登山,中午在山顶野餐,下午分组自由活动;3.拍照、记录,之后参加校摄影展或征文比赛。温馨提示1.自带午餐和饮用水;2.4月5日前到学生会报名。注意:1.词数100左右;2.可以适当增加细节,以使行文连贯;3.通知的格式已给出,不计入总词数。参考词汇:邙
25、山Mangshan Mountain;报名sign up;征文比赛essay contestNotice_Students UnionMarch 30考点规范练32(选修7Unit2).【解题导语】本文是说明文。瑞士科学家尝试研究一款无人机来帮助营救迷路的旅行者。1.A细节理解题。由第一段中的“.followhikingtrailswithoutapilotsassistance.Thiscouldallowrescuerstosearchmoreefficiently.”可知,科学家研制这款无人机是为了使其帮助救援人员找到迷路的旅行者。2.D细节理解题。由第四段中的“Thecomputerd
26、idaslightlybetterjobthanthepeoplehad.”可知,在实验室测试时,电脑比人在照片分类方面做得稍好一些。3.D细节理解题。由倒数第二段中的“Thatsbecausethedronescameratooklower-qualityimagesthanthecamerasthathadbeenusedtotrainit.”可知,无人机之所以在森林中测试效果不好是因为其在森林中拍的照片质量差,不容易识别。4.C推理判断题。由最后一段中的“Itsanexcitinguseforneuralnetworks.”及“However,theproblemsfacedinthee
27、xperimentsshowthattherearestillsomeimportantissuestobeworkedout.”可推断,克里斯托弗拉斯马森对该研究成果持客观态度。【解题导语】本文是一篇说明文,主要介绍了一款新型的预防犯罪的机器人。5.B细节理解题。根据第五段的第二句“Theydonotcarryweaponsbuttheyhaveday-and-nighttimevideocameraswhichareabletoturn360degreesandcanalsosensechemicalandbiologicalweapons.”可知,这种机器人的功能就是能够日夜不停地执勤站
28、岗。6.A细节理解题。根据倒数第二段的第一句“Somepeoplemaybecomeconcernedabouttheirprivacy,especiallyinconnectionwiththevideorecordings.”可知,一些人担忧这种机器人所携带的摄像机会记录其隐私,其隐私有可能会被泄露。7.D主旨大意题。根据文章第一段并结合全文的整体内容可推知,本文主要介绍了一种新型的预防犯罪的机器人。.【解题导语】本文是一篇议论文,论述了工作经验是工作成功的最重要的因素这一论点。1.E根据空处位置可知,空处承上启下,根据该段第二句“Workingexperienceoranadvanced
29、degree?”可知,空处提出自己的观点并引出下文,故E项与此处匹配。2.B根据本段最后一句“Definitelythefirstoneforthemanagerwhodoesntacquireadoctorsdegreebuthasrichworkingexperience.”并结合空后所列举的例子可知,该例旨在证明丰富的工作经验在应聘时更受欢迎,故B项与此处匹配。3.C根据空处所在的位置可知,空处为本段的主题句;根据本段列举的比尔盖茨放弃学业创业成功和乔布斯在十九岁时辍学这两个例子可以判断,本段旨在说明丰富的工作经验能促使人早日成功,故C项正确。4.G根据该空所在的位置可知,该空总结本段大
30、意;由空前列举的比尔盖茨和乔布斯这两个例子可以判断,高学历不如工作经验重要,故G项正确。5.A根据空处所在的位置可知,空处为本段的主题句;由本段最后一句“Probablyabachelorsdegreeisstillnecessaryinthisfiercelycompetitivesociety.”可知,在这个竞争激烈的社会中,学历仍然是有必要的。据此可以判断,本段主要陈述学历对于大部分人来说还是需要的,故A项正确。.NoticeIn order to encourage Senior Three students to take exercise and relax themselves,
31、were going to organize a mountain-climbing activity on April 10.Were to gather at the school gate and start at 7:20 am by bus and get back at 7 pm.Well climb Mangshan Mountain in the morning,on the top of which well have a picnic at noon.In the afternoon well be divided into groups and have a free time.Remember to take photos and make notes for the photo exhibition or the essay contest to be held later at our school.Besides,take lunch and drinking water with you.If you want to join in,please come to Students Union and sign up before April 5.Students UnionMarch 30