Social distancing is not a new concept in the natural world，where infectious diseases are commonplace.Through specialized senses animals can detect certain diseases and change their behavior to avoid getting ill.
In 1966，while studying chimps（猩猩）in a Tanzanian national park，zoologist Jane Goodall observed a chimp named McGregor who had caught a highly infectious virus.His fellow chimps attacked him and threw him out of the troop.In one instance，McGregor approached chimps in a tree.He reached out a hand in greeting，but the others moved away without a backward glance.
"For a full two minutes，old McGregor sat motionless，staring after them，" Goodall notes in her 1971 book In the Shadow of Man. "It's really not that different to how some societies react today to such a tragedy."
Not all animals are so aggressive toward their ailing neighbors.Sometimes it's as simple as avoiding those who may infect you.
When Kiesecker，a lead scientist in America，studied American bullfrog in the late 1990s，he found that bullfrogs could not only detect a deadly smell of infection in other bullfrogs，but healthy members actively avoided those that were sick.Bullfrogs rely on chemicals signals to determine who is sick or not.
Caribbean lobsters also shun diseased members of their community，well before they become infectious.It takes about eight weeks for lobsters infected with the deadly virus Panulirus argus mininuceovirus to become dangerous to others.Normally social animals，lobsters begin keeping away from the diseased as early as four weeks after infection - once the lobsters can smell certain chemicals released by sick individuals.
"Overall，it's important to note that，unlike us，animals don't realize if they stay home，they might actually reduce the infection rate，" Kiesecker explains. "As humans，we have that abiljye.aiy.It's a big difference."
（1）What can we learn about the chimps from Goodall's observation？ DD
A．They kept a distance from one another.
B．They became aggressive when infected.
C．The infected avoided contact with others.
D．The infected were forced to leave the group.
（2）What does the underlined word "shun" in Paragraph 6 probably mean？ AA
A．Avoid.
B．Cure.
C．Get rid of.
D．Get along with.
（3）How are humans different from animals according to Kiesecker？ CC
A．Humans are more sensitive to virus.
B．Humans are less likely to get infected.
C．Humans treat infectious diseases in a wiser way.
D．Humans can detect chemical signals more quickly.
（4）Which might be the best title for the text？ CC
A．Help Me Out
B．Leave Me Alone
C．Stay Away From Us
D．Stay Home Stay Healthy
【答案】D；A；C；C
【解答】
【點(diǎn)評】
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發(fā)布：2024/7/5 8:0:9組卷：1引用：6難度：0.5
相似題
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1．Hi Judy!
You often complain to me that you always buy goods unreasonably on sale promotion（促銷）and feel it shameful after going back to your school dormitory with new things not needed，considering all the money you spend is your parents' income．
In fact，this is a common phenomenon，called impulsive buying，a buying unplanned and hard to control．It usually happens when a store offers discounts（打折）or sales promotion-a special way used by stores to get more customers，which means you may fall into its traps even without notice．
Stores，with a good knowledge of customers' psychology（心理），make use of it to drive business．Avoiding all the impulsive buying is a hard thing．However，knowing our psychology behind it and reducing the times when influenced by sales promotion may be useful．So you should keep calm when facing the sales promotion by keeping in mind what you really need．
Find out the conditions where you are likely to buy things blindly．When seeing a dress advertised at 20% off，do not concentrate on the discount，but warn yourself against falling into the trap of "saving money''．
Besides，do not forget the long-term effects of your choice when meeting a sales promotion．Short-term benefits，like excited feeling just after buying items encourage impulsive buying．But the long-term costs such as waste of money and the sense of shame really annoy you．When seeing the advertisements，remember what you really want to buy originally and warn yourself of that terrible feeling．Only in this way can you save money for really needed things．
Yours，
Rachel
（1）Judy felt it a shame to．
A．complain to others about the poverty of her family
B．waste her parents' money on unneeded things
C．buy cheap things at lower prices or with less money
D．rely on her parents for further education
（2）Which of the following is true of impulsive buying according to Rachel？
A．It is designed by shops to draw customers' attention．
B．It can be brought under control with the help of stores．
C．It is planned by buyers with the purpose of saving money．
D．It is done by customers without considering its bad effects．
（3）In face of sales promotion Judy is advised to．
A．have belief in her own immediate decision
B．check the quality of the goods at low prices
C．stay calm by thinking about what she really needs
D．take the chance to learn more about stores tricks
（4）How do buyers usually feel in the long run after buying discounted things？
A．Regretful．
B．Thrilled．
C．Relaxed．
D．Sceptical．發(fā)布：2025/1/10 8:0:1組卷：4引用：2難度：0.6 -
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The New School of English is located in the beautiful city of Cambridge.The school is open all year and provides a range of English language courses for adults from all over the world（minimum age 16）.These courses cover General English as well as courses for professionals looking to focus on specific topic areas.They have a range of accommodation choices for students.
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（1）What can we know about Burlington School？
A．It is open all year.
B．It is located in London.
C．It provides no accommodation.
D．It offers no social practice classes.
（2）Which school offers the biggest discounts？
A．Burlington School.
B．New School of English.
C．University of Liverpool.
D．Interactive English School.
（3）How is New School of English different from the others？
A．It sets a strict age limit.
B．Its accommodation is optional.
C．Its teachers are qualified and experienced.
D．It offers General and Specialist English courses.發(fā)布：2025/1/6 16:30:6組卷：0引用：1難度：0.6 -
3．Ever since I graduated from high school I've worked in the factories surrounding my hometown every summer.However，making the transformation between school and full-time blue-collar work during the break never gets any easier.For a student like me who considers any class before noon to be unacceptable，getting to a factory by 6 o'clock each morning is suffering.My friends never seem to understand why I'm so relieved to be back at school or that my summer vacation has been anything but a vacation.
There are few people as self-confident as a college student who has never been out in the real world.People of my age always seem to overestimate the value of their time and knowledge.In fact，all the classes did not prepare me for my battles with the machine I ran in the plant，which would jam whenever I absent-mindedly put in a part backward or upside down.
The most stressful thing about blue-collar life is knowing your job could disappear over night.Issues like being laid off and overseas relocation had always seemed distant to me until my co-workers told me that the unit I was working in would shut down within six months and move to Mexico，where people would work for 60 cents an hour.
After working 12-hour shifts（輪班）in a factory，the other options have become only too clear. "This job pays well，but it's hell on the body，" said one co-worker. "Study hard and keep reading." she added.When I'm back at the university，skipping classes and turning in lazy re-writes seems too irresponsible after seeing what I would be doing without school.All the advice and public-service announcements about the value of an education that used to sound stale（陳腐的）now ring true.
My experiences in the factories have inspired me to make the most of my college years before I enter the real world for good.
（1）What does the author think of his summer holiday？
A．It was no holiday for him at all.
B．It brought him nothing but suffering.
C．It was a relief from his hard work at school.
D．It offered him a chance to make more friends.
（2）What can we infer about most college students？
A．They do better in the real world.
B．They are confident when they work.
C．They think too highly of themselves.
D．They are expert at handling machines.
（3）What is the biggest pressure for blue-collar workers？
A．A low income.
B．The lack of security.
C．An unstable location.
D．Less break.
（4）How did the working experiences change the author？
A．He became responsible for his work.
B．He learned to be more practical at work.
C．He began to respect blue-collar workers.
D．He came to appreciate his college education.發(fā)布：2025/1/6 16:30:6組卷：0引用：1難度：0.5
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