人教版（2019）必修2《Unit 3 The Internet》2020年單元測試卷（二）

一、閱讀理解（每小題8分，共16分）

• 1．All networks like 3 G and 4 G will be things of the past，because 5 G will be reachable in the near future．So，what's so special about a 5 G future？First of all，its download speed can be as fast as 20 GB/s，which is 100 to 200 times that of 4 G．But what's more impressive is 5 G's low delay rate．Now，4 G takes an average of 200 milliseconds（毫秒） to send and receive information．But 5 G will get it down to 1 millisecond．
     5 G is a great breakthrough．It's going to change the way equipment connects to the Internet，and more importantly，to each other．And self-driving cars may be one of the biggest breakthroughs to come out of 5 G．Human reaction time is 200 milliseconds，yet we still have accidents every day．The self-driving car under a 5 G network could react and communicate its reaction to hundreds of cars around it，all within 1 millisecond．It'll play a great role in preventing car accidents and ending traffic jams completely．
     5 G can benefit us in many other ways．Operations could be performed by robots controlled by experts from the other side of the world．Therefore，more lives will be saved in time．Factories can be staffed by robots that can communicate their tasks to each other，and they can do more work efficiently over a 5 G network．Imagine a group of drones（無人機） flying over a field of crops，using sensors（傳感器） on the ground to sort，pick，feed，and water plants all on their own．Then farmers won't have to work so hard anymore．
     However，5 G is not perfect．One major disadvantage has to do with why it's so fast．5 G uses the millimeter waves，while 4 G uses the 15 to 40 centimeter-long waves．And shorter waves go fast but not very far．On 4 G networks，the signal can go 10 kilometers．But the 5 G signal can go at most 300 meters，and it can't even go through walls or rain．So，what does that mean？Having such a short signal distance means we need to build a lot of transmitters（信號發(fā)射塔） in the future．
  
  （1）How does the author show us 5 G's advantages in Paragraph 1？

  
  A．By giving examples of the uses of 5 G．
  B．By making comparisons between 4 G and 5 G．
  C．By explaining the scientific principles of 5 G．
  D．By analyzing 5 G's development from 4 G．
  （2）According to the author，the self-driving cars will

  ．
  A．cause more car accidents
  B．slow down 5 G's development
  C．run without being connected to the Internet
  D．have a much faster reaction speed than humans
  （3）What does the underlined part "be staffed by robots" in Paragraph 3 mean？

  
  A．Be built by robots．
  B．Have robots as workers．
  C．Offer employees home robots．
  D．Produce more medical robots．
  （4）What does the last paragraph mainly talk about？

  
  A．The main weakness of 5 G networks．
  B．How to make 4 G networks more perfect．
  C．The types of long waves and short waves．
  D．How to improve the signal of mobile phones．
  組卷：8引用：1難度：0.5

  解析

• 2．The Consumer Technology Association，formerly called The International Consumer Electronics Show，or CES，believes about 170，000 people will attend the show．About one-third of them are reported to come from countries besides the United States．
     More than 4，000 businesses will show products used through the Internet such as gaming，self-driving cars，artificial intelligence（人工智能） and robotics．One of the biggest stars at CES this year is the voice-controlled digital（數(shù)字的） assistant．While the technology is not new，many companies will show off the latest digital assistants．
     Equipment controlled by digital assistants，especially those turned on by voice，were already big sellers in 2017．This year，Google，Amazon and Apple are expected to release even more products to keep up with the rising demand．
     Digital assistants are powered by artificial intelligence and machine learning technology．They are designed to learn users' preferences over time and then "think" and act on their own．Some of the biggest developments in technology have come in the area of home automation（自動化）．Amazon Echo，Google Home，Apple's Home Pod and Microsoft's Cortana are a few examples of voice-controlled equipment．All include smart speakers that "talk" to users inside the house and can perform operations．
     Experts with the Consumer Technology Association say sales of smart speakers are expected to nearly double in 2019．
     The Internet-linked products can play music or find information when asked questions．They can also control equipment such as lighting，cameras，televisions and temperature controllers．Among new "smart" home products to be released at the CES are voice-controlled washing machines，refrigerators，showers and toilets．There is also much new physical fitness and health-related equipment on show．Some are designed to help people create the best personal fitness plans to reach their goals．Wearable health equipment is used to study and measure body conditions，while others help recognize signs of disease．
  
  （1）What will be shown at CES？

  
  A．Books about robots．
  B．International fashion．
  C．Schools' teaching art．
  D．Equipment related with the Internet．
  （2）Why are Google，Amazon and Apple expected to develop more intelligent products？

  
  A．To create music．
  B．To treat all kinds of diseases．
  C．To meet the increasing needs．
  D．To make experiments in space．
  （3）How do users communicate with the equipment of home automation？

  
  A．By fax．
  B．By voice．
  C．By email．
  D．By body language．
  （4）In which part of a newspaper may this text appear？

  
  A．Art．
  B．Health．
  C．Education．
  D．Technology．
  組卷：5引用：1難度：0.5

  解析

二、七選五（每小題10分，共10分）

• 3．The Internet has opened up a whole new online world for us to meet，chat and go where we've never been before．
     But just as in face to face communication，there are some rules of behavior that should be followed when online．（1）

  Imagine how you'd feel if you were in the other person's shoes．
     For anything you're about to send：ask yourself， "Would I say this to the person's face？" if the answer is no，rewrite and reread．（2）

  
     If someone in the chat room is rude to you，your instinct（本能） is to fire back in the same manner．But try not to do so． （3）

  If it was caused by a disagreement with another member，try to fix the situation by politely discussing it．Remember to respect the beliefs and opinions of others in the chat room．
     （4）

  Offer advice when asked by newcomers，as they may not be sure what to do or how to communicate．When someone makes a mistake，whether it's a stupid question or an unnecessarily long answer，be kind about it．If it's a small mistake，you may not need to say anything．Even if you feel strongly about it，think twice before saying anything．Having good manners yourself doesn't give you license to correct everyone else． （5）

  At the same time，if you find you are wrong，be sure to correct yourself and apologize to those that you have offended．
     It is not polite to ask others personal questions such as their age，sex and marital status．Unless you know the person very well，and you are both comfortable with sharing personal information，don't ask such questions．
  
  A．It's natural that there are some people who speak rudely or make mistakes online．
  B．Repeat the process till you feel sure that you'd feel comfortable saying the words to the person's face．
  C．Everyone was new to the network once．
  D．The basic rule is simple：treat others in the same way you would want to be treated．
  E．When you send short messages to a person online，you must say something beautiful to hear．
  F．You should either ignore the person，or use your chat software to block their messages．
  G．If you do decide to tell someone about a mistake，point it out politely．
  組卷：12引用：2難度：0.5

  解析

三、完形填空（每小題1.5分，共30分）

• 4．Many people tend to bring electronic products when travelling，including me．Last year I just ruined my summer vacation by bringing along a modern convenience：the iPad．
     Instead of looking at nature，I（1）

  my e-mail．Instead of reading great novels，I stuck to reading（2）

  newspapers each morning．And that was the problem：I was acting（3）

  I were still in the office．My body was on vacation but my（4）

  wasn't．
     So this year I made up my mind to try something（5）

  getting away from the Internet．I knew it wouldn't be easy，（6）

  I'm not good at self-control．But I was（7）

  ．I started by（8）

  the iPad to my wife．Then，a stroke of luck：The mobile phone（9）

  at our cabin was worse than in the past．I was trapped in a small circle and（10）

  to carry out my plan．Largely（11）

  from e-mail and my favorite newspaper websites，I had little way to（12）

  the world．I had no（13）

  but to do what I had planned to do all along：read books．
     With determination and the strong support of my wife，I succeeded in my vacation struggle（14）

  the Internet．I finally（15）

  that it was me，of course，not the iPad，that was the（16）

  ．
     I knew I had（17）

  when we passed a Starbucks and my wife asked if I wanted to stop to use the Wi-Fi． "Don't need it，" I said．（18）

  ，as we return to work，a test begins：Can I（19）

  when I'm back at work？I had no intention of（20）

  my iPad completely．But I hope to resist the temptation（抵抗誘惑） to use it every five minutes．
  
  

  （1）	A．received	B．selected	C．checked	D．removed
  （2）	A．online	B．informal	C．local	D．traditional
  （3）	A．so that	B．a(chǎn)s if	C．now that	D．even though
  （4）	A．opinion	B．identity	C．mind	D．curiosity
  （5）	A．a(chǎn)ttractive	B．logical	C．magical	D．different
  （6）	A．since	B．unless	C．though	D．so
  （7）	A．excited	B．shocked	C．determined	D．frightened
  （8）	A．showing	B．handing	C．sending	D．introducing
  （9）	A．quality	B．design	C．signal	D．technology
  （10）	A．concerned	B．continued	C．inspired	D．forced
  （11）	A．taken out	B．pulled down	C．cut off	D．carried away
  （12）	A．rely on	B．connect to	C．help with	D．look at
  （13）	A．method	B．goal	C．trick	D．choice
  （14）	A．a(chǎn)gainst	B．for	C．on	D．to
  （15）	A．expected	B．realized	C．permitted	D．suggested
  （16）	A．puzzle	B．sign	C．evidence	D．problem
  （17）	A．won	B．forgotten	C．suffered	D．recovered
  （18）	A．Somehow	B．Anyway	C．However	D．Therefore
  （19）	A．survive	B．change	C．escape	D．continue
  （20）	A．taking apart	B．giving up	C．turning to	D．caring about
  組卷：30引用：2難度：0.7

  解析

五、根據(jù)提示翻譯句子（每小題3分，共24分）

• 12．老師講得很慢，為了讓學(xué)生聽清楚。（so that）
  The teacher spoke slowly

  ．
  組卷：9引用：5難度：0.4

  解析

• 13．在我一生中，我有很多老師，但沒有一個比我的英語老師給我留下的印象更深。（more than）
  During my life， I have many teachers， but there is no other teacher

  ．
  組卷：8引用：5難度：0.4

  解析