2021高考英语一轮统考复习第一编Book7Unit20NewFrontiers课时作业（含解析）北师大版 练习

Unit 20 New Frontiers课时作业Ⅰ.阅读理解A(2020·湖北省孝感市第一中学高三月考)Last week, two companies, Kitty Hawk and Uber, announced their plans to bring flying cars to reality very soon.Kitty Hawk president, Sebastian Thrun, announced Kitty Hawk's flying car plans last Monday. According to its website, the car is electric­powered and will be able to travel at a speed up to 40 kilometers an hour. It says such a machine “does not require registration or a pilot's license and may be flown in uncrowded areas for recreational purposes.” As of now, the car can only be flown over fresh water.Kitty Hawk is making a list of people interested in buying the flying car. They must pay a deposit of $100.Those who get their names on the list early will receive $2,000 off the final cost of the car. However, Kitty Hawk has not yet announced the price. Its first flying cars are expected to go on sale by the end of this year.Unlike the Kitty Hawk company, Uber does not plan to build its flying cars. Uber expects to launch flying taxis in Dallas­Ft. Worth, Texas, US by 2020.Like the Kitty Hawk car, Uber flying taxis will use electric power. Uber says its flying taxis could travel up to 241 kilometers an hour. The company says that could reduce the travel time between San Francisco and San Jose, California from 2 hours on the road to 15 minutes in the air.Riders could use the Uber app to book a flying taxi to take them to their destinations. The company has not yet said how costly air taxi travel would be compared to road taxi travel. Sooner than you think, flying cars may appear in the sky. Much convenience as they will bring, just imagine having to avoid other flying cars. Also, what if your battery dies when you are in the air? And, how will you know where to land？篇章导读：本文是一篇说明文。上周，Kitty Hawk和 Uber两家公司宣布他们很快就会使飞行汽车成为现实。文章具体介绍了两家公司研制的飞行汽车的一些特点。1.What may Kitty Hawk's flying car be used for at present？A.Accelerating the speed.   B.Having fun.C.Advertising the company.  D.Fetching water.答案：B　细节理解题。由第二段第三句“It says such a machine ‘... may be flown in uncrowded areas for recreational purposes.’”可知，目前该飞行汽车主要用于消遣娱乐。故B项正确。2.What do we know about Kitty Hawk's flying car from the third paragraph？A.It costs two thousand dollars each.B.It can travel over water.C.It offers $100 to its potential buyers.D.It hasn't gone to market.答案：D　推理判断题。由第三段中的最后两句“However, Kitty Hawk has not yet announced the price. Its first flying cars are expected to go on sale by the end of this year.”可知，Kitty Hawk的飞行汽车还没有定价，预计到今年年底进行销售。由此可以推知，该飞行汽车还没有上市。故D项正确。3.In what way is Uber's flying taxi similar to Kitty Hawk's flying car？A.They travel at the same speed.B.They are electric­powered.C.They are supported by the Uber app.D.They require a flying license.答案：B　细节理解题。由第二段中的“... the car is electric­powered”和第四段中的“Like the Kitty Hawk car, Uber flying taxis will use electric power.”可知，它们都是电动的。故B项正确。4.What is the purpose of the last paragraph of the text？A.To call for public donations.B.To introduce some advantages.C.To promote interest in science.D.To talk about possible problems.答案：D　推理判断题。由最后一段最后三句话，尤其是最后的两个问句可知，该段提出了飞行汽车可能出现的问题。故D项正确。B(2019·新疆维吾尔自治区普通高考第二次适应性检测)Technology is forever changing the way we get our news. Most people now get a lot of their news on electronic devices, instead of traditional media, such as newspapers, television or radio. An increasing number of people also report turning to social media for information.Now, there is a new technology that could greatly change the way we get the news: computer­created news readers. China has launched what it called the world's first artificial intelligence, or AI news presenters.The news readers, supported by machine learning technology, are based on two real­life Chinese newsmen. One is able to present news broadcast in English; the other，in Mandarin Chinese. A report said machine learning was used to examine video images and sounds of the two newsmen. Similar technology has been used to create video products known as “deepfake videos”. A deepfake video is a video that looks real, but was electronically changed. Such videos can make people appear to say things they never said. It's said that the AI presenters will be a great improvement to the news team because they “can work 24 hours a day” on its website and on social media. One of the presenters even promised to “work tirelessly” to keep people informed. Some machine learning experts said the system showed off China's latest progress in voice recognition,  text­to­speech technology and data analysis. Others wondered about the effects robots might have on employment and workers. Some people argued that only low­level jobs requiring heavy labor will be easily replaced by robots. Others praised the technology as a way for companies to make money from low­cost labor machines. Anyway, for its great potential, some businesses have experimented with similar technology for possible use in news  operations.篇章导读：本文是一篇说明文。文章主要介绍了人工智能新闻主播的相关内容。5.People now get information mainly from ________.A.electronic devices B．traditional mediaC.social media D．AI news presenters答案：A　细节理解题。根据第一段第二句中的“Most people now get a lot of their news on electronic devices”可知，人们现在主要从电子设备上获取信息。6.The author mentioned “deepfake” in Paragraph 3 because ________.A.it was also artificialB.it was also developed by ChinaC.it also used machine learning technologyD.it also gained popularity and recognition答案：C　推理判断题。根据第三段第三、四句“A report said machine learning was used ... known as ‘deepfake videos’．”可推知，作者提到deepfake是因为它也用了机器学习技术。7.What can we know about AI news presenters？A.AI news presenters can only “speak” one language.B.Not all the people are in favor of AI news presenters.C.AI news presenters will soon replace human news readers.D.AI news presenters can reflect the improvement in robot making.答案：B　细节理解题。根据倒数第二段的内容，尤其是“Others wondered about the effects robots might have on employment and workers.”可知，并不是所有人都支持人工智能新闻主播。8.What will probably be discussed in the following paragraph？A.Further research on the technology.B.Other advantages of the technology.C.Principles the technology is based on.D.Examples the technology is applied to.答案：D　推理判断题。根据最后一段中的“some businesses have experimented with similar technology for possible use in news  operations”可知，接下来的一段很可能讨论应用到这种技术的例子。Ⅱ.七选五(2019·湖北名校冲刺二模)Imagine that you are in a remote village somewhere with no medical clinic. __1__ Once the doctors get to you, they examine you and take blood samples, but they won't be able to help you until they take the samples back to the hospital to find out what is wrong. __2__ Thanks to engineer Andy Ozcan, many people may never be in this situation. He has invented an app that turns your mobile phone into a diagnostic (诊断的) tool.Ozcan's invention is important because it is very accurate and easy to use. In many remote places, even if doctors have microscopes and other instruments to help them make diagnoses, there may still be other problems. Many doctors, for example, don't have enough training to correctly interpret what they see. __3__ With Ozcan's mobile phone app, health workers can take a special photo of a blood sample and send it to a central computer at a hospital. The computer will then automatically interpret the photo and send a diagnosis back in a few minutes.__4__ His technology only requires a mobile phone and an Internet connection. As more than four billion people already have cell phones, the cost of establishing the diagnostic system is fairly low.By inventing a medical tool that uses existing technology—mobile phones—Ozcan has developed a medical tool that is both practical and economical. Therefore, it can be used effectively almost anywhere. __5__A.Another reason that Ozcan's invention is important is that it is inexpensive.B.Even though you may only have a simple infection (感染), you might die because of the delay.C.People are trying to reduce the cost of this new medical tool.D.Ozcan's simple, cost­effective tool might just save millions of lives around the world.E.This tool has become much more popular all around the world.F.You become very sick and must wait days until a mobile medical unit arrives to help.G.As a result, they may diagnose illnesses incorrectly.篇章导读：本文是一篇说明文。文章主要介绍Andy Ozcan发明的一款手机，这款手机可以转变为病情诊断的工具。这种经济又实惠的医疗工具可以在世界任何地方使用，能拯救无数人的生命。1.F　根据上文“Imagine that you are in a remote village somewhere with no medical clinic.”想象一下，你在一个没有医疗诊所的偏远村庄，可知此处应填“你病得很重，必须等待几天，直到一个流动医疗队来帮你”。故选F。2.B　根据下文“Thanks to engineer Andy Ozcan, many people may never be in this situation.”多亏了工程师 Andy Ozcan，许多人可能永远不会处于这种境地，可知此处应填“即使你可能只有一个简单的感染，你可能会因为延误而死亡”。故选B。3.G　根据上文“In many remote places ... there may still be other problems. Many doctors, for example, don't have enough training to correctly interpret what they see.”可知，这里说明的是由于知识、设备等原因，偏远地区的诊断会出现很多问题，那么诊断肯定会出现不准确的情况，G项符合这一逻辑。4.A　根据下文“the cost of establishing the diagnostic system is fairly low”可知此处应填“Ozcan的发明重要的另一个原因是它不贵”。故选A。5.D　根据上文“Therefore, it can be used effectively almost anywhere.”因此，它几乎在任何地方都有效，可知此处应填“Ozcan的简单、经济高效的工具可能会拯救世界各地数百万人的生命”。故选D。Ⅲ.语法填空(2020·黑龙江省牡丹江一中高三学年上学期检测)Not all memories are sweet. Some people spend all __1__ lives trying to forget bad experiences. Now American researchers are developing a pill, __2__ will help people forget bad memories. The pill is planned to be taken immediately after a __3__ (frighten) experience. They hope it might reduce, or possibly erase, the effect of painful memories.However, the new research has caused a lot of argument. Supporters say bad memories may ruin people's lives. They come back __4__ us when we don't want to have them in a daydream or nightmare (噩梦). They usually come with very painful feelings. The pill can help to reduce many __5__ (suffer). But those __6__ are against the research say that changing memories __7__ (be) very dangerous because memories show who we are.__8__ the drug could first be used in only very serious cases, some people even fear that it would become more commonly used. Don't forget people always have the ability __9__ (use) science for the wrong purpose. What we should do is help people to have __10__ (good) control of memories.1.________　2.________　3.________　4.________5.________　6.________　7.________　8.________9.________　10.________篇章导读：本文是一篇议论文。文章介绍了美国研究人员正在研究一种新的消除记忆的药片，引起了人们的广泛讨论。1.their　考查代词。空后是名词lives，且句子主语是some people，故用形容词性物主代词their，表示“他们的一生”。2.which　考查定语从句。设空处引导非限制性定语从句，在从句中作主语，修饰表示物的先行词“pill”，故用which。3.frightening　考查词性转换。a frightening experience “一次令人害怕的经历”，形容词修饰物。4.to　考查介词。come back to “返回到”，固定用法。5.sufferings　考查名词。设空前是many，空格处应填名词复数sufferings。6.who　考查定语从句。先行词是those，指那些人，定语从句缺少主语，故用who。7.is　考查主谓一致。动名词作主语，谓语动词用第三人称单数。8.Although/Though　考查连词。设空处引导让步状语从句，表示“虽然，尽管”。句意：虽然在严重的情况下药物才能运用，但许多人害怕这会变得普遍。9.to use　考查非谓语动词。have the ability to do “有能力做某事”，固定用法。10.better　考查形容词比较级。句意：我们所能做的是帮助人们更好地控制记忆。此处用good的比较级形式better。Ⅳ.书面表达(2020·南昌市重点中学高三年级段考试题)假设你叫李华，你听说即将来你校任职的外籍教师David需要一名学生助手，你想自荐做他的助手。请你用英文写一封自荐信，要点包括：1.写信目的；2.你作为助手的优势；3.表达期待。注意：1.词数100左右；2.可以适当增加细节，以使行文连贯。Dear David，     Yours，Li Hua[精彩范文]Dear_David，I'm Li Hua, a student from Xinhua Senior Middle School.  It's great to hear that you are coming to teach in our school next semester. You said you want an assistant to help you with your work, and I think I am qualified for the job.Firstly,  being one of the top ten students in our school,  I am able to speak fluent English. Secondly,  I can use the computer skillfully.  What's more, I have a gift for communicating with others and I am always ready to help people in need.  So I'm sure to be helpful in your work and life in China.I'll appreciate it if I have the chance to be your assistant. Looking forward to your coming.Yours，Li_Hua