2021届东格致中学高三英语下学期期末考试试题及参考答案.pdf
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1、2021 届东格致中学高三英语下学期期末考试试题及参考答案 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 Stepping Out Into Nature The classic road trip is more popular than ever.Here are several places to hit the open road.Colo-road Trips The Colorado Tourism Office has made it easy for roa
2、d-trippers to explore the states 24 Scenic&Historic Byways.A new microsite includes-an interactive map that enables travelers to explore options by region,interest or season.Travelers seeking inspiration can also access insider tips and side-trip suggestions for historic attractions,active adventure
3、s and highlight cultural opportunities.TheBeartooth Highway.Visitors of this extraordinary byway experience the grand sights ofMontana,WyomingandYellowstonePark.The windy 68-mile stretch introduces road explorers to one of the most diverse ecosystems accessible by auto.Breathtakingly beautiful,this
4、All-American Road showcases wide,high alpine plateaus(高原),painted with ice blue lakes,forested valleys,waterfalls and wildlife.SewardHighway,Alaska The road that connectsAnchorageto Seward is 127-mile treasure of natural beauty,wildlife and stories of adventure.The drive begins at the base of theChu
5、gach Mountains,hugs the scenic shores of Turnagain Arm and winds through gold mining towns,national forests and fishing villages.Expect waterfalls,glaciers,eagles and some good bear stories.The Lighthouse Trail,Maine Travel the 375 miles betweenKitteryandCalais,Maine,visiting lighthouses along the w
6、ay.Hear tales of shipwrecks(海难)and of the difficult and lonely life led by those who kept the lights burning brightly.If possible,visit theMaineLighthouseMuseum.where artifacts and hands-on exhibits for children provide an appealing break.1.What makes Colo-road Tips special?A.Good bear stories.B.A s
7、cenic beach.C.Hands-on exhibits.D.An interactive map.2.Where can you explore state of gold miners?A.Colorado.B.Montana.C.Alaska.D.Maine 3.Which place is suitable for a family with children?A.Colo-road Trips.B.TheBeartooth Highway.C.Seward Highway.D.The Lighthouse Trail.B A growing body of research i
8、s revealing associations between birth defects(缺陷)and a fathers age,alcohol use and environmental factors,say researchers atGeorgetown University Medical Center.They say these defects result from epigenetic changes that can potentially affect multiple generations.The study,published in theAmerican J
9、ournal of Stem Cells,suggest both parents contribute to the health status of their offspring a common sense conclusion which science is only now beginning to demonstrate,says the studys senior investigator,Joanna Kitlinska,PhD,an associate professor in biochemistry,and molecular and cellular biology
10、.“We know the nutritional,hormonal and psychological environment provided by the mother permanently influences organ structure,cellular response and gene expression in her offspring,”she says.“But our study shows the same thing to be true with fathers his lifestyle,and how old he is,can be reflected
11、 in molecules that control gene function,”she says.“In this way,a father can affect not only his immediate offspring,but future generations as well.”For example,a newborn can be diagnosed with fetal(胎儿的)alcohol spectrum disorder(FASD),even though the mother has never consumed alcohol,Kitlinska says.
12、“Up to 75 percent of children with FASD have biological fathers who are alcoholics,suggesting that preconceptual paternal alcohol consumption negatively impacts their offspring.”Advanced age of a father is correlated with elevated rates of certain diseases,and birth defects in his children.A limited
13、 diet during a fathers preadolescence has been linked to reduced risk of cardiovascular death in his children and grandchildren.Paternal obesity is linked to enlarged fat cells,changes in metabolic regulation,diabetes,obesity and development of brain cancer.Psychosocial stress on the father is linke
14、d to defective behavioral traits in his offspring.And paternal alcohol use leads to decreased newborn birth weight,marked reduction in overall brain size and impaired cognitive function.“This new field of inherited paternal epigenetics needs to be organized into clinically applicable recommendations
15、 and lifestyle alternations,”Kitlinska says.“And to really understand the epigenetic influences of a child,we need to study the interplay between maternal and paternal effects,as opposed to considering each in isolation.”4.Whats the message the writer conveys in the passage?A.Both parents contribute
16、 to the health status of their offspring.B.Fathers age and lifestyle are tied to birth defects.C.Father plays a more critical role in birth defects.D.Birth defects can potentially affect multiple generations.5.What can we infer from the example in Paragraph 5?A.FASD can only be diagnosed in a newbor
17、n whose father is addicted to alcohol.B.A newborn will not contract FASD if his mother has never consumed alcohol.C.A fathers lifestyle can negatively impact his offspring.D.Most children have biological fathers who are alcoholics.6.Which of the following situations is less likely to lead to childre
18、ns birth defects?A.Having a father with a limited diet.B.Having a father who is an alcoholic.C.Having an overweight father.D.Having a father with psychosocial stress.7.What will the research probably continue to focus on in the part that follows?A.The maternal epigenetic influences of a child.B.The
19、ways to avoid negative paternal influence on children.C.The clinical application of the research findings.D.The interaction between maternal and paternal effects.C Your best friend that follows you around when the sun comes out-your shadow-doesnt serve an important function like your heart or brain,
20、but what if you could use shadows to create electricity?When using solar panels(电池板)that are powered by light,shadows can be boring because it means electricity cant be created.However,researchers from the National University of Singapore have engineered a way to create power from the shadows presen
21、t everywhere.A team of the university created a machine that can collect energy from shadows.It is created by placing a thin coating of gold onto silicon(硅).Like in a normal solar panel,when put in light,the silicon electrons(电子)become energized and the energized electrons then jump from the silicon
22、 to the gold.The voltage(电压)of the part of the machine that is placed in the light increases to the dark part and the electrons in the machine flow from high to low voltage.They are sent through an external circuit(外电路)creating a current that can be used to power another machine.The greater the cont
23、rast between light and dark,more energy is provided by the machine.The team isworking on improving the performance of the machine,borrowing approaches from solar panels to gather light.Increasing the amount of light the machines can receive allows them to better make use of shadows,as well as develo
24、ping shadow energy collecting panels that can successfully gather from indoor lighting.The team is also researching the use of other materials other than gold to drop the price of the machine,meaning they would be more cost effective and easier to apply in society.Shadows are present everywhere and
25、perhaps one day in the future we will be able to collect energy from them by placing the shadow-effect energy machine around the world in places that have been considered unfit for solar panels to work,or indoors.“A lot of people think that shadows are useless,”Tan says,but“anything can be useful,ev
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