内容正文:
WELCOME UNIT
Unit 3 The world of science
Period 2 Understanding ideas
课时作业( 二)
目录
CONTENTS
1
小精读
2
课时作业(二)
Ⅰ 阅读
It's a late night in the Metro area of Phoenix, Arizona. Under the streetlights, a car can be seen slowly approaching and parking. A green and blue “W” glows (发光) from the windscreen, giving off just enough light to see inside—showing a completely empty driver seat. When the person waiting for it opens the door to climb inside, a voice greets him. “Good evening, this car is yours,” it says. This is a Waymo One robotaxi, ordered just 10 minutes ago using an app.
课时作业(二)
The promise of driverless technology has long been inviting. It has the potential to improve our experience of commuting (通勤) and long journeys and take people out of highrisk working environments. It's key to helping us build the cities of the future, lowering carbon emissions. And it could make traveling safer. “We want safer roads and less accidents. Automation (自动化) could provide that,” says Camilla Fowler, head of automated transport for the UK's Transport Research Laboratory (TRL).
But in order for driverless technology to become mainstream, much still needs to change.
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“Driverless vehicles should be a very calm way of getting from A to B. But not every human driver around it will be driving in that way,” says David Hynd, from TRL. “It's got to be able to deal with human drivers speeding, for instance, or breaking the rules of the road.”
And that's not the only challenge. There's regulation, rethinking the highway code, public perception, improving the infrastructure (基础设施) of our streets, towns, cities, and the big question of ultimate responsibility for road accidents. “The whole insurance industry is looking into how they're going to deal with that change from a person being responsible and in charge to the vehicle doing that,” says Richard Jinks, vice president of commercial at Oxfordshirebased driverless vehicle software company Oxbotica, which has been testing its technology in cars and delivery vehicles at several locations across the UK and Europe.
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The ultimate vision (终极愿景) experts are working towards is of completely driverless vehicles, not only for personal use but also for industry and wider transport networks, that can be used anywhere and everywhere around the world.
But with all these challenges in place, what exactly does the next 10 years have in store for autonomous vehicles?
篇章导读:本文是一篇说明文。文章主要介绍自动驾驶技术的潜力和挑战。
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1.What is special about the car mentioned in Paragraph 1?
A.It drives very slowly.
B.It is automatic and drives itself.
C.It can sense its driver's feelings.
D.There is enough light to see inside.
解析:细节理解题。根据第一段中的“A green and blue ... empty driver seat.(一个绿色和蓝色的‘W’字从挡风玻璃上发出光,发出的光刚好能看到车内,显示出一个完全空的驾驶座。)”可知,第一段中提到的汽车是可以自动驾驶的。故选B。
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2.What does Paragraph 2 mainly tell us about driverless vehicles?
A.Their main dangers.
B.Their special design.
C.Their wide popularity.
D.Their potential advantages.
解析:段落大意题。根据第二段中的“It has the potential ... lowering carbon emissions.(它有可能改善我们的通勤和长途旅行体验,让人们远离高风险的工作环境。这是帮助我们建设未来城市、降低碳排放的关键。)”可知,这一段主要介绍无人驾驶汽车潜在的优势。故选D。
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3.With what might Hynd and Jinks both agree about driverless technology?
A.It isn't ready for wide application.
B.It will make driving a safe experience.
C.It isn't developing as smoothly as planned.
D.It will increase profits in the insurance industry.
解析:推理判断题。根据第四段中的“It's got to be ... the rules of the road. (例如,它必须能够处理人类驾驶员超速行驶或违反交通规则的情况。)”和第五段中的“The whole insurance industry ... to the vehicle doing that (整个保险业都在研究如何应对这种变化,从负责人到车辆)”可推知,Hynd (海因德)和Jinks (金克斯)都认为,无人驾驶技术还没有做好广泛应用的准备。故选A。
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4.How does the author feel about the future of driverless vehicles?
A.Hopeful.
B.Surprised.
C.Uncertain.
D.Disappointed.
解析:推理判断题。根据最后一段“But with all these ... for autonomous vehicles?(但是,面对所有这些挑战,未来10年自动驾驶汽车究竟会发生什么?)”可推知,作者对无人驾驶汽车的未来感到不确定。故选C。
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Ⅱ 完形填空
In many ways, Gitanjali Rao is an ordinary 11yearold, lively and chatty, yet her scientific spirit makes a huge difference. She __1__ the top prize at the Discovery Education 3M Young Scientist Challenge for her invention.
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What __2__ Gitanjali's work was that her city faced a water emergency with too much lead in its water. “The idea didn't occur to me __3__ I saw my parents try to do water tests. The test strips may show inaccurate results, which weren't very __4__,” she recalls. She then searched for suitable materials with continued efforts and __5__ found that carbon nanotube (纳米管) sensors can be used to sense chemicals. Gitanjali __6__ to build a small blue hose using the 3D printer at her school with computer chips and a battery inside. A free app, which Gitanjali designed under __7__ from her computer science teacher, gives instant results and sends the data to a linked phone through an attached device.
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The process of designing her project wasn't always __8__, though. Kathleen Shafer, a scientist paired with Gitanjali __9__ her teacher in summer, __10__ along the way. In the award ceremony, Gitanjali also expressed __11__ to her parents for constant support and __12__ to try “crazy ideas”. Gitanjali received $25,000 to further develop her program along with the great __13__ of winning the contest. According to Shafer, who __14__ Gitanjali, “she shows a lot of motivation to solve __15__ issues through science”.
篇章导读:本文是一篇新闻报道。文章报道了11岁的普通女孩Gitanjali (吉檀迦利)不平凡的故事,她发明出检测水中铅含量的设备,获得探索教育3M青年科学家挑战赛的最高奖。
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1.A.offered B.earned
C.designed D.presented
解析:根据下文“Gitanjali received $25,000 to further develop her program along with the great __13__ of winning the contest.”可知,她的发明获得了比赛的最高奖。故选B。
2.A.exposed B.improved
C.inspired D.defined
解析:根据下文“her city faced a water emergency with too much lead in its water”可知,她所在的城市面临着水中铅含量超标的紧急情况,因此这种情况启发了Gitanjali的创作灵感。故选C。
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3.A.when B.until
C.after D.although
解析:根据上文“didn't”和下文“I saw my parents try to do water tests”可知,until 和not搭配构成not ... until ...固定结构,意为“直到……才……”,此处表示Gitanjali直到看到父母试着做水测试才有了这个想法。故选B。
4.A.reliable B.disappointing
C.predictable D.unbelievable
解析:根据上文“The test strips may show inaccurate results”可知,试纸可能显示不准确的结果,因此不是很可靠。故选A。
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5.A.initially B.immediately
C.temporarily D.eventually
解析:根据上文“She then searched for suitable materials with continued efforts”可知,她不断努力寻找合适的材料,最终才发现了碳纳米管传感器这种合适的材料。故选D。
6.A.pretended B.promised
C.managed D.happened
解析:根据上文Gitanjali的发明获得了比赛的最高奖可推知,她成功制作出了产品。manage to do sth意为“成功做成某事”。故选C。
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7.A.pressure B.command
C.instruction D.control
解析:根据下文“her computer science teacher”和常识可推知,Gitanjali在计算机科学老师的指导下设计程序。故选C。
8.A.rough B.smooth
C.complex D.challenging
解析:根据下文“though”可知,此处语义有转折,因此过程并不总是一帆风顺的。故选B。
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9.A.as B.to
C.from D.after
解析:根据上文“a scientist”和下文“her teacher in summer”可推知,科学家Kathleen Shafer (凯思琳·谢夫)是作为Gitanjali暑期的搭档老师。故选A。
10.A.applauded B.assisted
C.criticised D.followed
解析:根据上文“a scientist paired with Gitanjali __9__ her teacher in summer”可推知,科学家Kathleen是Gitanjali的搭档老师,一直在帮助Gitanjali。故选B。
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11.A.gratitude B.praise
C.concern D.apology
解析:根据下文“for constant support and __12__ to try ‘crazy ideas’”可知,Gitanjali的父母一直支持她做发明,因此是感激她的父母。故选A。
12.A.threat B.request
C.struggle D.encouragement
解析:根据上文“constant support”和下文“to try ‘crazy ideas’”可知,encouragement “鼓励”符合语境,表示父母支持Gitanjali,还鼓励她尝试“疯狂的想法”。故选D。
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13.A.honor B.intention
C.potential D.announcement
解析:根据下文“of winning the contest”可推知,除了获得奖金还有赢得了比赛的巨大荣誉。故选A。
14.A.keeps up with B.gets along with
C.speaks ill of D.thinks much of
解析:keep up with “跟上”;get along with “与……相处”;speak ill of “说……的坏话”;think much of “高度评价”。根据下文“she shows a lot of motivation to solve __15__ issues through science”可推知,Shafer对Gitanjali的评价很高。故选D。
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15.A.commercial
B.academic
C.practical
D.systematic
解析:根据上文“her city faced a water emergency with too much lead in its water”可知,Gitanjali的发明针对的是水中铅含量超标的问题,因此是解决实际的问题。故选C。
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小精读
Phil was a successful businessman. One day, he went for a lunch at a new restaurant. While waiting for his meal, Phil looked at the people in the park. Suddenly,a young boy's face caught his attention.
“Wait, do I know him?” he wondered. He walked out of the restaurant. When he approached the little boy, he saw the boy begging for money. When Phil saw the boy turn towards him, “Yes, I know him!” Phil thought. Phil knew the boy and his mother very well.
Phil was in his senior year when Melissa, the boy's mother, joined the university as a teaching assistant. She met Phil when his teachers wanted to make him leave the university because of his poor performance. Melissa stood up for him and asked his teachers to give him one last chance.
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Phil agreed to study under Melissa's guidance and was amazed to see how she taught him the knowledge he couldn't follow earlier. He considered her as his mentor (导师) and respected her a lot.
After graduating, Phil set up his company and applied the knowledge that Melissa had taught him. He quickly made huge profits and was always grateful to Melissa.
“Hey! What happened to your mom?” Phil asked the boy.
“She hasn't been feeling well for the past year,” the boy replied while he tried to recognize Phil. “The doctors says she needs immediate surgery (外科手术), but we can't afford it.”
“I'm so sorry to hear that,” Phil said.
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“We sold everything we owned,” the boy said. “We paid for her first operation, but now we have nothing. She needs another surgery as soon as possible.”
“I can't believe this,” Phil said while holding back his tears. “Can you take me to the hospital? I want to meet your mother.”
The boy agreed and jumped into Phil's car. Phil tried his best not to cry on the way to the hospital, but he couldn't help it. He was shocked to learn about Melissa's illness. After parking the car, Phil followed the boy to the hospital room and talked to the doctors about the woman's condition. “Ms Melissa needs immediate surgery,” the doctor said. “We will begin the surgery as soon as we are ready.” Phil nodded and told the doctors he would pay for the surgery.
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Phil sat in the waiting room beside the boy while the doctors performed Melissa's surgery. Hours later, a team of doctors and nurses came out of the operation room and told Phil everything was fine. When Melissa gained awareness, her son hugged her, “Mom, do you know who paid for your surgery?” Melissa turned her eyes to Phil. “Phil? Is that you?” she smiled.“Yes, Ms Melissa,” Phil smiled back. “Your favorite student is here!” With hands holding together, they talked about their past good days happily.
小精读
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靠近;接近;建议;要求
方式,方法;通路
申请;应用;涂,敷
认出;认识;承认;意识到
开办;开创事业;设立;成立
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Phil agreed to study under Melissa's guidance and was amazed to see how she taught him the knowledge he couldn't follow earlier.
and连接两个____________,how引导_______从句,he couldn't follow earlier是省略了______________的_______从句。
并列谓语
宾语
that/which
定语
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第一步:
______________________________________________________________________________________________________________________________________________________
第二步:
________________________________________________________________________
第三步:
________________________________________________________________________
______________________________________________________________________________________________________________________________________________________
Phil(菲尔)遇到曾经帮助过自己的老师的儿子在乞讨,得知老师生病了,但他们负担不起手术费用。
他让男孩带他去老师所在的医院,决定为老师支付手术治疗费用。
老师手术成功,对Phil表示感谢,两人回忆了过去的时光。
滴水之恩,当涌泉相报。知恩图报是做人的起码道德和良知,是一种自立、自尊和追求阳光人生的精神境界。
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R
$$