1、Unit 20 单元主题语篇训练 （课时作业三）.阅读理解AA tablewaiting robot cat built by a Chinese technology firm can carry plates of food, navigate a restaurant, miaow (喵喵叫) at diners and even react to having its ears stroked.Making its debut at the 2020 Consumer Electronics Show in Las Vegas, the socalled BellaBot was bu
2、ilt for Chinese restaurants lacking enough waiters.It is the brainchild (智慧结晶) of the Chinese robotics and artificial intelligence firm PuduTech.It features four shelves in the center of its towerlike body to carry plates.Having been loaded up with meals by its human colleagues, the catthemed roboti
3、c waiter miaows when it delivers food to diners to encourage them to take their plates.If customers thank BellaBot by stroking its ears, it will initially respond with a look of pleasure on its onboard screen, which displays animations of a cats face.“The owners hand is so warm，” BellaBot has been p
4、rogrammed to respond.However much like a real cat the robots reaction soon changes if it is petted for too long.“It gets mad to remind you not to interrupt its job，” the designers introduced.The BellaBot waiter robot is a more personalityrich update to PuduTechs previous model, which featured a more
5、 utilitarian (实用主义的) design and user interface.Both BellaBot and its predecessor were designed with a particular mind to Chinese restaurateurs which are often short of waiting staff.In a realworld foodservice setting, however, BellaBot may find it difficult to operate at peak times.Nevertheless, res
6、taurants are expected to increase their trust on automation whether in the form of robotic waiting staff or otherwise.Furthermore, the technology improvements of robotic waiters designs will be grown steadily, especially better at communicating with humans and tackling new activities.语篇解读：本文是一篇说明文。文
7、章介绍了深圳科技公司推出的拥有猫咪外形的餐饮机器人。1Why did the technology firm create the BellaBot?AThe restaurant can react to it.BIt is the brainchild of the Chinese robotics and AI firm.CThe Chinese scientists want to show their talent to the world.DIt is can be used when Chinese restaurants are short of enough waiters.
8、解析：选D细节理解题。根据第二段第一句和第五段第二句可知，创造出BellaBot是为了弥补饭店服务员的短缺。2When do the robotic waiters deliver the food to diners?AThe customers touch the robotic waiters ears.BThe customers are encouraged to take their plates.CThe human colleagues have loaded up the meals on robotic waiters.DThe robotic waiters displa
9、y animations of a cats face on their onboard screen.解析：选C细节理解题。根据第三段第二句可知，人类同事把饭菜放在机器人服务员的架子上后，它会把食物送到顾客那里。3What can we infer from the robots reaction changes?AIt wants to remind you to get mad.BIt wants to remind you to pet it again.CIt wants to remind you not to help its work.DIt wants to remind y
10、ou not to stop its work.解析：选D推理判断题。根据第四段“It gets mad to remind you not to interrupt its job”可知，机器人的反应变化是想提醒人们不要阻断它的工作。4What is the authors attitude to the robotic waiters?ADoubtful.BPositive.CNegative. DAmbiguous.解析：选B观点态度题。根据最后一段可知，机器人服务员的技术改进会稳步提高，尤其在跟人类交流和开展新活动方面会更好。由此推断出作者对机器人服务员持积极态度。BChina rec
11、ently completed an inflight confirmation for satellite dragfree control technology, marking a step forward in the countrys spacebased gravitational wave (引力波) detection program.Stateowned China Aerospace Science and Technology Corporation (CASC) confirmed the success with the Tianqin1, the countrys
12、first satellite for spacebased gravitational wave detection, on Saturday. Dragfree control technology blocks forces that affect a satellite, excluding gravity, so it can remain stable, the report said, noting that forces need to be canceled including sunlight pressure and atmospheric drag.Based on f
13、light data, the new technology reduced external (外部的) forces on the Tianqin1s acceleration by less than 1400 millionth of the gravitational acceleration, marking a better result than the European Space Agencys GOCE satellites 1300 millionth. The results suggest that external forces have an accelerat
14、ion effect of less than a human yawn, the report said. Moreover, the Chinese technology was successful in reducing the displacement from external forces to 30 nanometers, or 14,000th of the diameter of an adult human hair strand. It is also better than the internationally wellknown LISA satellites 4
15、0 nanometers, according to Science and Technology Daily.The two results have significant theoretical and practical value in detecting Earths gravitational field, according to the report. With this latest achievement, the Tianqin1 has proven the level of its technology.The research institute under CA
16、SC started conducting related research in 2010, according to Science and Technology Daily, which also noted that China still needs time to practically apply the technology to gravitational wave detection. Launched on December 20, 2019, the Tianqin1 is Chinas first technology demonstration satellite
17、in the Tianqin gravitational wave detection program. Started by the Sun Yatsen University in 2015, the program will eventually consist of three satellites that will form a triangle around Earth.语篇解读：本文是一篇说明文，介绍了“天琴一号”卫星上应用的无拖拽控制技术，该技术体现了中国科技的进步。5What does the underlined word “it” in Paragraph 2 refe
18、r to?AGravitational wave detection.BDragfree control technology.CA certain space satellite.DSunlight pressure.解析：选C代词指代题。根据第二段中的“Dragfree control technology blocks forces that affect a satellite, excluding gravity, so it can remain stable”可知，无拖拽控制技术可以阻止除引力外影响卫星的力，因此卫星可以保持稳定，故画线词it指的是“卫星”，故C项正确。6What
19、 does the author intend to tell us in Paragraph 3?AOur technology is highly advanced.BThe Tianqin1 is widely known worldwide.CThe LISA satellite is a total success.DThe Tianqin1s acceleration is increased.解析：选A推理判断题。第三段前半部分说中国的新技术比欧洲的先进，无拖拽控制技术使得外力对加速度的影响比打哈欠给人带来的加速度的影响还要小，后半部分强调这一技术优于国际著名的LISA卫星应用的
20、技术，故本段的主要目的是向读者展示中国先进的科技，故A项正确。7What is TRUE about the Tianqin1?AIt was sent into space in 2015.BIt guarantees greater accuracy when working.CIt still needs time to remain stable.DIt can create gravitational waves.解析：选B推理判断题。根据第三段最后两句可知，中国这一技术(无拖拽控制技术)将外力引起的卫星移位控制在了30纳米，优于国际著名的LISA卫星的40纳米。由此可推知“天琴一号
21、”在工作时可以保证较高的准确性。故B项正确。8Where is this passage probably taken from?AAn art magazine.BA travel brochure.CA mathematic essay. DA science journal.解析：选D文章出处题。根据全文内容可知，本文主要介绍了中国航天事业上的科技进步，故本文很有可能选自科学杂志，故D项正确。.短文改错Dear Peter，I am writing to tell you a absolutely wonderful news. Our school photography club i
22、s to hold an International Student Photography Exhibition, its theme is environmental protection. The exhibition will last three weeks. Those who is interested can sign up at the Student Union.As far as I am concerned, particularly keen in taking photos, you are always having the desire do something
23、 for the environment. Which impresses me most are the photos you took while you visit the park. Why not show it to everyone at the exhibition? You can definitely make the different, calling on people to devote themselves to protect the environment. I would be more than delighted if you could join us
24、.Yours，Li Hua答案：第一句：去掉a第二句：its前加and或itswhose第四句：isare第五句：inon; desire后加to第六句：WhichWhat; visitvisited第七句：itthem第八句：differentdifference; protectprotecting.书面表达假定你是李华，你的英国笔友Peter在给你的邮件中提到他对中国的筷子文化很感兴趣，请根据以下要点给他回一封邮件，简要介绍中国的筷子文化。1历史：3 000多年；2起源于中国，流传至韩国及日本；3常用材质：竹子、木头；4推动中国厨艺发展；5餐桌礼仪。注意：1.词数100左右；2短文须包括
25、所有提示内容；3可以适当增加细节，以使行文连贯。参考词汇：烹饪(术)cuisine参考范文：Dear Peter，Im very glad that you are very interested in Chinese culture, especially Chinese Chopstick Culture. Now Id like to tell you something about it. With a history of more than 3,000 years, chopsticks, usually made of bamboo or wood, originated in
26、China and spread to South Korea and Japan, which greatly promote Chinese cuisine development. At the same time, there appeared many table manners about chopsticks.For example, dont hit the chopsticks or point at others when eating with chopsticks.In addition, it is convenient to eat with chopsticks. Im sure youll enjoy it.Yours truly，Li Hua