2021届中山市三角镇高级中学高三英语二模试卷及参考答案.pdf
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1、2021 届中山市三角镇高级中学高三英语二模试卷及参考答案 第一部分 阅读(共两节,满分 40 分)第一节(共 15 小题;每小题 2 分,满分 30 分)阅读下列短文,从每题所给的 A、B、C、D 四个选项中选出最佳选项 A Four Online Events The handshake:an anthropologists guide What is its biological purpose?What are the best and worst handshakes?In this talk,scientist Ella Al-Shamahi examines the power
2、of touch and argues the handshake is at least 7 million years oldThis event will start at 18:00 pm on 25 March and will last one hour Standard ticket price:15(A 20discount for those who buy the ticket before March 20.)A rescue plan for nature What do we need to do to restore the planet s biodiversit
3、y and preventthe next pandemic(疫情)?Join scientist Cristian Samper as he talks about how our ignoring nature caused the pandemic-and how we can seize a unique opportunity to build back betterThis free event will start at 18:00 pm on 15 April Origins of life Why is the planet the way it is?How did we
4、get here?Does everything happen for a reason or are some things left to chance?Research shows we live in a world driven by chance In this talk,biologist Sean B Carroll will tell the stories of the mother of all accidents,and the surprising power of chance in our lives and the worldThis event will st
5、art at 19:30 pm on 22 April and will last two hoursStandard ticket price:18(A 10discount for those who buy the ticket before April 17.)The truth about exercise Should we all be hitting the gym three times a week?Should we worry about sitting to omuch?If you are strong and fit,can you get away with b
6、eing inactive?In this talk,specialist Jason Gill introduces what science can really tell us about how much we need to move to live a healthy lifeThis event will start at 19:00 pm on May 13 and will last one hour,Standard ticket price:12(A 15discount for those who buy the ticket before May 8.)1.How m
7、uch should you at least spend on the event about the handshake?A.10.2 B.12 C.13 D.16.2 2.From whom can you learn about the origins of life?A.Ella Al-Shamahi B.Cristian Samper C.Sean B Carroll D.Jason Gill 3.What does the four online talks have in common?A.They are science-based B.They are about cult
8、ures C.They are related to nature D.They are intended for the young B Guangzhououtbreak linked to strains inIndia The gene sequencing of the COVID-19 outbreak inGuangzhou.Guangdongprovince,indicates it is very similar in structure to the mutatedstrains detected inIndia,a senior health official from
9、the city said on Sunday.“And it has the characteristic of quick spread.”Chen Bin,deputy director of the citys health commission,said at a news conference inGuangzhouon Sunday.She urged relevant departments and medical staff to act quickly to block the chain of infection and control the spread of the
10、 coronavirus in the southern metropolis.Zhang Zhoubin,deputy director of theGuangzhoucenter for disease control and prevention,said the strain of coronavirus spreads easily.“The virus can be spread through a meal or through a short period of indirect contact,”he said.The city reported five confirmed
11、 eases and 21 asymptomatic carriers as of 2 pm Sunday after the first con finned case was detected in the citys Liwan district on May 21,Chen said.To prevent the virus from spreading,the city government tightened its disease control and prevention measures over the weekend.Six communities and housin
12、g estates previously designated as low-risk areas were raised to medium-risk ones,Chen said.In addition to asking local residents to get vaccinated,the city has organized nucleic acid testing in Haizhu and Yuexiu districts starting from Sunday.Residents in specific areas of Tianhe,Baiyun and Panyu d
13、istricts have also been required to take nucleic acid tests to expand the screening of suspected patients and asymptomatic carriers.Liwan previously required all its residents to take nucleic acid tests.As of Saturday,more than 2-25 million residents of the city have had samples collected for nuclei
14、c acid tests,Chen said.More than 10,000 medical workers from the entire city have been sent to Liwan to help vaccinate locals against COVID-19 and collect samples for nucleic acid testing.Deng Wenjun,director of circulation section with Guangzhou Supply and Marketing Cooperative,said there are suffi
15、cient supplies of food and daily necessities in the medium-risk areas.4.What is the characteristic of the COVID-19 which broke out inGuangzhou?A.It disappears quickly.B.It spreads fast.C.It has a lot to do with temperature.D.It has the same nature as the seasonal flu.5.Which district have residents
16、who have not been required to take nucleic acid tests?A.Tianhe.B.Haizhu.C.Panyu.D.Zengcheng.6.Which of the following statements is TRUE?A.The virus can hardly be spread through a short period of indirect contact.B.There are 21 symptomatic carriers in the Liwan district as of 2 pm Sunday.C.All the pe
17、ople living in Liwan district arc previously asked to take nucleic acid tests.D.Supplies of food and daily necessities in the medium-risk areas arc still not enough.7.Where can you probably find this article?A.On a news website.B.In a fashion magazine.C.In a history book.D.In a travel journal.C It i
18、s a question people have been asking for ages.Is there a way to turn back the aging process?For centuries,people have been looking for a“fountain of youth”.The idea is that if you find a magical fountain,and drink from its waters,you will not age.Researchers in New York did not find an actual founta
19、in of youth,but they may have found a way to turn back the aging process.It appears the answer may be hidden right between your eyes,in an area called the hypothalamus(下丘脑).The hypothalamus is part of your brain.It controls important activities within the body.Researchers at New Yorks Albert Einstei
20、n College of Medicine found that hypothalamus neural(神经的)stem cells also influence how fast aging takes place in the body.What are stem cells(干细胞)?They are simple cells that can develop into specialized cells,like blood or skin cells.Stem cells can also repair damaged tissues and organs.Dongsheng Ca
21、i is a professor at the Albert Einstein College of Medicine.He was the lead researcher in a study on aging in mice.He and his team reported their findings in the journal Nature,Cai explained when hypothalamus function is in decline,particularly the loss of hypothalamus stem cells,and this protection
22、 against the aging development is lost.it eventually leads to aging.Using this information,the researchers began trying to activate,or energize,the hypothalamus laboratory mice.They did this by injecting the animals with stem cells,Later,the researchers examined tissues and tested for changes in beh
23、avior.They looked for changes in the strength and coordination(协调)of the animals muscles.They also studied the social behavior and cognitive ability of the mice.The researchers say the results show that the treatment slowed aging in the animals,Cai says injecting middle-aged mice with stem cells fro
24、m younger mice helped the older animals live longer.But these results were just from studying mice in a laboratory.If the mice can live longer,does that mean people could have longer lives?The next step is to see if the anti-aging effects also work in.8.In Paragraph 2 a“fountain of youth”is mentione
25、d to _.A.introduce the main topic B.show a hidden secret.C.describe scientists research D.recommend a way to stay young 9.Aging takes place in the body when _.A.stem cells develop into specialized cells B.there are important activities within the body C.hypothalamus neural stem cells fail to protect
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