2020届成都龙泉二中高三英语模拟试卷及参考答案.pdf
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1、20202020 届成都龙泉二中高三英语模拟试卷及参考答案届成都龙泉二中高三英语模拟试卷及参考答案第一部分第一部分阅读(共两节,满分阅读(共两节,满分4 40 0 分)分)第一节(共第一节(共 1515 小题;每小题小题;每小题 2 2 分,满分分,满分 3030 分)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 AOlder adults who sleep six hours or fewer a night may have elevated risk for dementia(痴呆症)and othercognitive(认知的)issues,a new st
2、udy finds.Researchers at Stanford University measured seniors(ages 65 to 85)dementia risk and cognitive abilities,finding higher risk in those patients who regularly slept six or fewer hours compared to those who slept seven oreight hours.Those seniors who slept nine or more hours also had lower cog
3、nitive functions and other healthissues,but the researchers didnt find the same high dementia risk in this group.The findings demonstrate how important it is for adults to maintain a healthy sleep cycle,especially as theyget older.As adults age,its common for their sleep patterns to change or become
4、disrupted leading to longer,shorter,or more irregular sleep.This disruption may be linked to Alzheimers and other forms of dementia,impactingseniors ability to remember information,problem-solve,and go through everyday behaviors.Sleep disruption canalso be caused by or heighten depression,cardiovasc
5、ular disease(冠心病),and other conditions.A recommended sleep time for seniors is seven to eight hours,the researchers said.Six or fewer hourscorresponded to short sleep,while nine or more hours corresponded to long sleep.The Stanford researchers measured levels of beta amyloid,a protein in the brain t
6、hat is typically found in highlevels when a patient develops Alzheimers.In addition,the researchers used several tests for memory,attention,spatial skills,and executive function to identify patients cognitive abilities.Those patients sleeping for six hours orfewer a night were more likely to develop
7、 dementia,the researchers found.The low-sleep patientshad higherlevels of beta amyloid.The Stanford researchers found that patients with lower sleep also performed worse on memory tests,whilethose with higher sleep(more hours)performed worse on executive function tests,which measure the brainsabilit
8、y to switch between different tasks.The main takeaway is that it is important to maintain healthy sleep late in life,Winer told CNN.1.What does the underlined word“disrupted”in paragraph 4 mean?A.difficultB.disorderedC.dissolvedD.different2.According to the findings,which of the following is NOT rel
9、ated to the disrupted sleep?A.It is more likely to cause old people to have bad memories over issues.B.It may contribute to dementia,cardiovascular disease and other illnesses.C.Some daily behaviors perhaps differ from those whose sleeping is normal.D It tends to bring all the old people to undergo
10、brain scans and cognitive tests.3.What can we infer from the study?A.A proper sleep time for seniors is seven to eight hours.B.Low and high sleep patients were both poor at memory tests.C.Executive function test is applied to measure the capacity of brain.D.Keeping a healthy sleep for older adults l
11、ate in life is crucial.BMany teens may feel anxious sometimes.Its the kind of nervousness that makes you bite your nails before abig test.We spend more time online than we should.We feel good about ourselves or bad based on how manyLikes and Followers we get on social media.Young people are developi
12、ng a false view of life.On the screen,we see what people want to show us.People usually only post photos where they are lookingtheir best.They are surrounded by friends and seem that they are having a great time.No one seems sad or lonely.In short,life isfabulous.But sooner or later,our young people
13、 compare their real life to it.They find that theirsdoesnt seem as fun or exciting and grow worried that they may be missing out.No wonder teachers are reporting more anxious students.Its reported that a lot more college studentsfeel overwhelming anxiety.The percentage jumped from 50%in 2011 to 62%i
14、n 2016.Anxiety is now the mostcommon mental-health problem in my country.It affects nearly one-third of teens and adults.Certainly,we cant blame it on social media alone.We expect toomuch from our children and a lot of theseexpectations arent reasonable.Their schedules are packed with sports,clubs a
15、nd homework.They dont haveenough free time.We want our children to succeed,and we dont care how much it costs.As parents,we must have more balance.On one hand,we push too hard,and on the other hand,we makelife too easy for children.We shouldnt and cant promise our children that they will always be h
16、appy.Weshouldnt try to protect them from the problems of everyday life.Let them solve the problems in person.4.What is the text mainly about?A.What causes teens nervousness.B.How to deal with teens anxiety.C.What a view of life means to people.D.How to treat social media appropriately.5.What does th
17、e underlined word“fabulous”in paragraph 2 mean?A.Wonderful.B.Encouraging.C.Anxious.D.Doubtful.6.Why does the author mention the numbers in paragraph 3?A.To draw teachers attention.B.To show teachers mental problems.C.To present the seriousness of teens anxiety.D.To show adults have more problems tha
18、n teens.7.What should parents do to help their children out?A.Try to meet their expectations.B.Help them with their homework.C.Give them more free time to play sports.D.Allow them to solve their own problems in life.CEach year,the women of Olney and Liberal compete in an unusual footrace.Dressed in
19、aprons(围裙)andheadscarves,they wait at both townsstarting lines.Each woman holds a frying pan with one pancake inside.Atthe signal,the women flip(轻抛)pancakes and theyre off!This“pancake racing”tradition is said to have started on Shrove Tuesday,1445,in Olney.Shrove Tuesday isthe day beforethe Christi
20、an season of Lent(大斋戒)begins.During Lent,many people decide to give up sugary orfatty foods.Legend says that in 1445,an Olney woman was making pancakes to use up some of her sugar and cookingfats before Lent.She lost track of time and suddenly heard the church bells ring,signaling the beginning of t
21、heShrove Tuesday service.Realizing that she was going to be late for church,she raced out the door still wearing herapron and headscarf and holding her frying pan with a pancake in it.In the following years,the womans neighborsimitated her dash to church,and pancake racing was born.The rules are sim
22、ple.Racers must wear the traditional headscarf and apron.They must flip their pancakestwice-once before starting and once after crossing the finish line.After the race,there are Shrove Tuesday churchservices.Then Liberal and Olney connect through a video call to compare race times and declare a winn
23、er.In both towns,the races have grown into larger festivals.Olneys festival is an all-day event starting with a bigpancake breakfast.Liberals festival lasts four days and includes a parade,a talent show,and contests that featureeating and flipping pancakes.Although the womens race is still the main
24、event,both towns now hold additionalraces for boys and girls of all ages.8.How did pancake racing start?A.A woman in Olney created it.B.Women made pancakes before Lent.C.A woman dashed to church with a pancake.D.People followed the suit of an interesting incident.9.What should racers obey during the
25、 race?A.They can wear fashionable headscarves and aprons.B.They must flip their pancakes once in the race.C.They must flip their pancakes at the beginning of the race.D.They can flip their pancakes in the middle of the race.10.What can we learn about the race from the last paragraph?A.People can sho
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