高中英语Unit3Inve练习 人教版选修8 7页

Section Ⅱ　Warming Up & Reading—Language Points 课时作业 Ⅰ. 单句语法填空 ‎1．We should get rid of bad habits and keep up good habits. ‎ ‎2．We have decided on going to Qingdao this summer vacation. ‎ ‎3．He picked (pick) up his cap from the floor and stuck it back on his head. ‎ ‎4．It's only a matter of time to solve the problem. ‎ ‎5．Forgive me so early to call you up please. ‎ ‎6．We need to set about carrying (carry) out the new plan. ‎ ‎7．It is very convenient (convenience) to pay by credit card now. ‎ ‎8．This young man is distinguished (distinguish) for his inventions. ‎ ‎9．Only when he is seriously ill，does he ever stay in bed. ‎ ‎10．But there seemed (seem) to be an impenetrable barrier around her as if she was sealed away by Tom. ‎ Ⅱ. 单句改错 ‎1．The game was called up because of the bad weather.up→off ‎2．It is the superior intelligence and the use of language that distinguish man between the other animals.between→from ‎3．The kind lady usually is mercifully to those homeless people.‎ mercifully→merciful ‎4．The government has set about to make many needed reforms.about→out ‎5．Will it be convenient of you to come in the morning？of→for ‎6．Another part of the body that needed special cautions is the eyes.‎ cautions→caution ‎7．The policeman seized the thief by his arm.his→the ‎8．On the National Day, people sang and danced merry in the street.‎ merry→merrily Ⅲ. 阅读理解 ‎(2019·全国卷Ⅰ)‎ As data and identity theft becomes more and more common, the market is growing for biometric (生物测量) technologies—like fingerprint scans—to keep others out of private espaces. At present, these technologies are still expensive, though. ‎ Researchers from Georgia Tech say that they have come up with a lowcost device (装置) that gets around this problem: a smart keyboard. This smart keyboard precisely ‎ 7‎ measures the cadence (节奏) with which one types and the pressure fingers apply to each key. The keyboard could offer a strong layer of security by analyzing things like the force of a user's typing and the time between key presses. These patterns are unique to each person. Thus, the keyboard can determine people's identities, and by extension, whether they should be given access to the computer it's connected to—regardless of whether someone gets the password right. ‎ It also doesn't require a new type of technology that people aren't already familiar with. Everybody uses a keyboard and everybody types differently. ‎ In a study describing the technology, the researchers had 100 volunteers type the word “touch” four times using the smart keyboard. Data collected from the device could be used to recognize different participants based on how they typed, with very low error rates. The researchers say that the keyboard should be pretty straightforward to commercialize and is mostly made of inexpensive, plasticlike parts. The team hopes to make it to market in the near future. ‎ ‎【解题导语】　本文是一篇说明文，主要向我们介绍了一种防止个人身份和数据在电子空间被盗的高科技智能键盘。‎ ‎1．Why do the researchers develop the smart keyboard?‎ A．To reduce pressure on keys. ‎ B．To improve accuracy in typing. ‎ C．To replace the password system. ‎ D．To cut the cost of espace protection. ‎ 解析：选D　细节理解题。根据第一段最后一句“At present, these technologies are still expensive, though. ”和第二段第一句“...they have come up with a lowcost device that gets around this problem”可知，研发智能键盘的目的是为了降低保护电子空间的成本。‎ ‎2．What makes the invention of the smart keyboard possible? ‎ A．Computers are much easier to operate. ‎ B．Fingerprint scanning techniques develop fast. ‎ C．Typing patterns vary from person to person. ‎ D．Data security measures are guaranteed. ‎ 解析：选C　细节理解题。根据第三段中的“Everybody uses a keyboard and everybody types differently. ”可知，人与人打字的模式不同，使得这一发明能够实现其功能。‎ ‎3．What do the researchers expect of the smart keyboard?‎ A．It'll be environmentfriendly. ‎ 7‎ B．It'll reach consumers soon. ‎ C．It'll be made of plastics. ‎ D．It'll help speed up typing. ‎ 解析：选B　细节理解题。根据最后一段中的“...the keyboard should be pretty straightforward to commercialize and is mostly made of inexpensive, plasticlike parts. The team hopes to make it to market in the near future. ”可知，实现智能键盘商业化很容易，并且其造价并不昂贵，因此研发团队希望在不久的将来能将其投放市场。‎ ‎4．Where is this text most likely from?‎ A．A diary. B．A guidebook. ‎ C．A novel. D．A magazine. ‎ 解析：选D　推理判断题。本文是一篇说明文，主要介绍了一种防止个人身份和数据在电子空间被盗的高科技智能键盘，由此可推断本文最有可能刊登在 (科学) 杂志上。‎ Ⅳ. 完形填空 ‎(2019·全国卷Ⅲ)‎ The small town of Rjukan in Norway is situated between several mountains and does not get direct sunlight from late September to midMarch 1 six months out of the year. ‎ ‎“Of course, we 2 it when the sun is shining，” says Karin Ro, who works for the town's tourism office. “We see the sky is 3 , but down in the valley it's darker—it's like on a 4 day. ”‎ But that 5 when a system of hightech 6 was introduced to reflect sunlight from neighboring peaks (山峰) into the valley below. Wednesday, residents (居民) of Rjukan 7 their very first ray of winter sunshine: A row of reflective boards on a nearby mountainside were put to 8 . The mirrors are controlled by a computer that 9 them to turn along with the sun throughout the 10 and to close during windy weather. They reflect a concentrated beam (束) of light onto the town's central 11 , creating an area of sunlight roughly 600 square meters. When the light 12 , Rjukan residents gathered together. ‎ ‎“People have been 13 there and standing there and taking 14 of each other，” Ro says. “The town square was totally 15 . I think almost all the people in the town were there. ” The 3,500 residents cannot all 16 the sunshine at the same time. 17 , the new light feels like more than enough for the town's 18 residents. ‎ ‎“It's not very 19 ，” she says, “but it is enough when we are ‎ 7‎ ‎20 . ”‎ ‎【解题导语】　本文是一篇记叙文。挪威山谷小镇Rjukan受地形影响，一年有近六个月无阳光照射。当地政府在山顶架设巨镜，利用反光原理将光线反射到小镇中心广场，让民众能够享受到自然阳光。‎ ‎1．A. only B．obviously C．nearly D．precisely 解析：选C　根据上文“late September to midMarch”可知，Rjukan小镇一年中有将近六个月的时间没有阳光，nearly符合语境。‎ ‎2．A. fear B．believe C．hear D．notice 解析：选D　根据下文“We see the sky is...but down in the valley it's darker...”可知，他们注意到了这一现象，D项符合语境。‎ ‎3．A. empty B．blue C．high D．wide 解析：选B　根据下文“but down in the valley it's darker”可知，即使是蓝天，阳光照耀，山谷下面却很暗，blue符合语境。‎ ‎4．A. cloudy B．normal C．different D．warm 解析：选A　根据上文“but down in the valley it's darker”可知，山谷下面光线很暗，就像阴天一样，cloudy符合语境。‎ ‎5．A. helped B．changed C．happened D．mattered 解析：选B　根据下文可知情况有所改变，changed符合语境。‎ ‎6．A. computers B．telescopes C．mirrors D．cameras 解析：选C　根据下文“to reflect sunlight from...”和“reflective boards...”及“The mirrors are controlled by a computer...”可知，引入了高科技的反射镜，mirrors符合语境。‎ ‎7．A. remembered B．forecasted C．received D．imagined 解析：选C　根据下文“creating an area of...When the light...residents gathered together”可知，Rjukan居民迎来了他们冬日的第一束阳光，received符合语境。‎ ‎8．A. repair B．risk C．rest D．use 7‎ 解析：选D　根据全文可知利用镜面反射原理，用反射镜将山顶的阳光反射到山谷下面，put...to use意为“应用……”，符合语境。‎ ‎9．A. forbids B．directs C．predicts D．follows 解析：选B　根据下文“to turn along with the sun”可知，反射镜由电脑控制，引导镜子随着太阳光线转动而转动，B项directs符合语境。‎ ‎10．A. day B．night C．month D．year 解析：选A　因为只有9月底到3月中旬这段时间没有阳光，故排除C和D项，太阳在白天才有，因此A项day符合语境。‎ ‎11．A. library B．hall C．square D．street 解析：选C　根据下文“The town square was totally...”可知，反射镜将阳光反射到小镇的中心广场上。‎ ‎12．A. appeared B．returned ‎ C．faded D．stopped 解析：选A　根据下文“Rjukan residents gathered together”可知，应是阳光出现的时候，因此appeared符合语境。‎ ‎13．A. driving B．hiding C．camping D．sitting 解析：选D　根据上文“Rjukan residents gathered together”和下文“standing there”可知，小镇居民都聚集在广场上，或坐着或站着，因此sitting符合语境。‎ ‎14．A. pictures B．notes C．care D．hold 解析：选A　根据上文“Rjukan residents gathered together”和下文“I think almost all the people in the town were there. ”可知，整个小镇居民都来广场享受他们第一束冬日阳光，这是第一次，一次大事件，大家都互相拍照留念，pictures符合语境。‎ ‎15．A. new B．full C．flat D．silent 解析：选B　根据下文“I think almost all the people in the town were there. ”可知，几乎小镇上的所有人都聚集在广场，要把广场挤满了，full符合语境。‎ ‎16．A. block B．avoid C．enjoy D．store 解析：选C　根据下文“the new light feels like more than enough”可知，约 7‎ ‎600平方米的阳光照不全小镇，因此所有居民不能同时享受阳光。‎ ‎17．A. Instead B．However C．Gradually D．Similarly 解析：选B　根据上文“cannot all”和下文“more than enough”可知，此处表示转折，however符合语境。‎ ‎18．A. natureloving B．energysaving C．weatherbeaten D．sunstarved 解析：选D　根据上文可知小镇一年中有大半年没有阳光，由此可知sunstarved “缺乏阳光的，急需阳光的” 符合语境。‎ ‎19．A. big B．clear C．cold D．easy 解析：选A　由上文“the new light feels like more than enough”和下文“but it is enough when...”可知，反射的阳光面积不够大，big符合语境。‎ ‎20．A. trying B．waiting C．watching D．sharing 解析：选D　阳光面积不是很大，但是足够大家共享，sharing符合语境。‎ Ⅴ. 短文改错 As students, all of us will be faced a problem after passed the college entrance examination. Should we choose a good major and a good university first? Here are some different ideas. Some more prefer to choose a major first so they can learn that they are interested in. In this way they can put their hearts into study and got their favorite jobs in the future. Other believe that the environment is important to one's develop and that graduates from key universities are more likely to find good jobs. As long as I'm concerned, the best choice is a good university if we can't obtain all. ‎ 答案：‎ As students, all of us will be faced a problem after the college entrance examination. Should we choose a good major a good university first? Here are some different ideas. Some prefer to choose a major first so they can learn they are interested in. In this way they can put their hearts into study and their favorite jobs in the future. believe that the environment is ‎ 7‎ important to one's and that graduates from key universities are more likely to find good jobs. As as I'm concerned, the best choice is a good university if we can't obtain . ‎ 7‎