當前位置：人教版（2019）必修第二冊《Unit 1 Cultural Heritage》2021年單元測試卷> 試題詳情

New Virus Details Show Challenges for Outbreak Control At first，scientists were relieved that the new virus，COVID-19，wasn't as dangerous as those that caused SARS，Ebola or some other recent infectious diseases.（1）
G
G
.Here are some of the challenges.
   Multiplying infections
   According to the existing data，the infection rate for SARS is 3 while the ordinary flu's infection rate is about 1.1.Now，based on the first 425 confirmed COVID-19 cases，each infection led to 2.2 more infections on average.（2）
D
D
.Yet we don't know whether the new virus is weakening or is still learning what it can do.
   Varying incubation periods （潛伏期）
   Scientists estimated（估計）the average incubation period was roughly five days，but said it could last up to two weeks.（3）
C
C
.People can move away from where they got it and not even remember places where they may have been exposed.
   Spreading in stealth
   Another big worry is that one person with no symptoms can also infect others.On Thursday，scientists reported that a woman who was not ill at the time spread the virus to a man in Germany during a business trip there.（4）
F
F
.
   Testing gaps
  （5）
B
B
.At present，a few types of test kits（工具包）have been developed.But they are not accurate enough.Scientists are not sure how many false alarms or missed cases each might give at any point in time.That leaves a key gap.
   Although scientists are still faced with so many challenges，they are confident that the new virus will be put under control soon.

A.More testing equipment should be provided at once.
B.It's still a struggle to determine who is or is not infected.
C.Such a long potential incubation period can be a problem.
D.The rate is a bit lower than SARS but much higher than ordinary flu.
E.That is a very low infection rate compared with that of SARS and Ebola.
F.Then he infected several other coworkers before showing any symptoms.
G.However，new details show how challenging it could be to control this outbreak.

【考點】人與自我．

【答案】G；D；C；F；B

【解答】

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發(fā)布：2024/11/1 5:0:2組卷：13引用：1難度：0.5

相似題

1．Everyone can benefit from better communication．（1）

Of course，we know that isn't true，but this shouldn't stop you improving your communication skills．Here are a few tips to help you become a better communicator．
?（2）

Verbal（口頭的） language is only one part of the communication-body language is another．If you ever wanted to know how to tell if someone is lying，body language is the answer．Your body language tells other people what you aren't verbally saying，such as if you are anxious，confident，confused，angry or any other type of emotion or state of mind．If you become great at reading body language，it will help you become a better communicator．
?Listen to others
Before you ever begin to speak，take a minute to see if anyone else has something to say．（3）

Listening to others has many benefits，such as allowing you to learn new things or get information that you may later need．
?Think before you speak
Your parents probably told you this as a child，but many people still do not take a moment to think about the words they are about to say．（4）

There is a time and place for all words and tones of voice．
（5）

You will have to practice your communication skills before you can ever become an excellent communicator．

A．This is not an overnight thing．
B．Singing a song for them is good．
C．Become fluent in body language．
D．Don't try to make the conversation go your way．
E．You should decide what you want to get in a conversation before you choose your words．
F．If you are too anxious，you can't look for the right body language to use in communication．
G．In fact，if everybody were excellent communicators，the world would be a much better place．
發(fā)布：2024/10/31 6:0:2組卷：34引用：3難度：0.7
解析
2．The Han people have its own spoken and written language --- Chinese．Chinese belongs to the Han-Tibetan language family．It is the （1）

（common） used language in China and among the largest languages in the world．
    Written Chinese came out in （2）

（it） earliest form approximately 1，000 years ago．The Chinese characters （3）

（use） today，also called Hanzi ，developed from those used in bones and tortoise shells more than 34，000 years ago．There are about 5 ，000 characters，of which only about 3，000 are in common use．
    Mandarin is a category （種類） of Chinese （4）

（dialect） spoken across most of northern and （5）

（southwest） China．The term Mandarin can also refer to Standard Mandarin，which （6）

（base） on the Mandarin dialect spoken in Beijíng．It is officially considered to be the standard for the People's Republic of China．
    Why do most non-Chinese speakers choose ta learn Standard Mandarin Chinese？Mandarin is understood by most Chinese people．As mentioned above，it is China's national language．（7）

you are interested in basic communication，scholarly research，or （8）

（pursue） a career in China，Standard Mandarin，is （9）

necessary tool for communication．And it often serves （10）

a bridge for communication．
發(fā)布：2024/11/1 8:0:2組卷：11引用：1難度：0.5
解析
3．You may have heard of the Red Cross． It is an （1）

（organize） that helps people who are in need no matter （2）

bad the situation is ! But if not for the passion of a young woman named Clara Barton， the American Red Cross may have never been formed!
    One day when she was 11 years old， her elder brother was （3）

（terrible） injured． He was ill for two years． Clara cared for him（4）

whole time． Through this experience she found out that she came alive when she cared for others．
    Soon， Clara began taking care of injured animals． Neighbors began bringing their pets to her． And， almost always， she made them better．
   When she was older， she became a nurse in the American Civil War and she helped save hundreds of （5）

（soldier）．
    After the Civil War， Clara traveled to Europe to rest．（6）

that did not last long． Soon she was caring for （7）

（wound） people in battle once again! But this time， she learned about the Red Cross who worked alongside her on the battlefield． Their mission was to help those who needed it most．
    She decided that the Red Cross （8）

（need） in America． Over several years， she asked 4 different presidents （9）

（bring） the Red Cross to America． They all said no． But then， thanks（10）

her persistence（堅持）， one of the presidents changed his mind! And the American Red Cross was born．
發(fā)布：2024/10/30 18:30:2組卷：29引用：3難度：0.6
解析

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