题目内容
11.Vitamin B could help reduce the effects of the dangerous type of air pollution,according to a new study published on Monday.In the first study of its kind,a team of international researchers looked into the damage caused by one of the pollutants that have the severest impact on health-PM2.5.They found that Vitamin B supplement could effectively reduce the impact of the tiny particles (颗粒)on the human body,although they stressed that the research was in its early stages.According to the WHO,92% of the world's people are living in places where the PM2.5 level goes beyond the recommended level.So it's urgent to find a solution to the problem.
According to this study,published in the PNAS,10 volunteers were initially exposed to clean air and given a placebo (安慰剂)to check their baseline responses.The group then kept on taking placebos tor tour weeks before being exposed to heavily polluted air from downtown Toronto,where an estimated 1,000cars passed every hour.The bad air was delivered to the volunteers through an"oxygen type"face mask.The experiment was then repeated,with each volunteer taking a Vitamin B supplement daily,made up of 2.5mg of folic acid,50mg of Vitamin B6,and l mg of Vitamin B12.
Vitamin B6can be found in liver,chicken,nuts and other things,and Vitamin B12 in fish,meat,eggs,milk and some cereals.The researchers found that four weeks of Vitamin B supplements-the damage of PM2.5effects by 28-76%.The results emphasized how prevention at an individual level could be used to fight against the damage of PM2.5,the researchers said.
29.What's the newly discovered effect of Vitamin B in Paragraph 1?C
A.It can be used to replace other vitamins in our daily life.
B.It can help lower the air pollution level in the open air.
C.It can reduce the impact of PM2.5on human bodies.
D.It can get rid of the pollutants remaining in our body.
30.What can be learned from the second paragraph?A
A.Further study about the effect of Vitamin B needs to be done.
B.Vitamin B is the most important to human's health.
C.The tiny particles in the air are made up of PM2.5.
D.92% of the world's people are affected by PM2.5.
31.How did researchers draw the new conclusion about Vitamin B?B
A.By referring to a journal.
B.By performing experiments.
C.By interviewing scientists.
D.By comparing vitamins.
32.You may read the passage on a website aboutD.
A.environment
B.medicine
C.education
D.health.
分析 本文属于说明文阅读,作者通过这篇文章主要向我们描述了新的研究发现维生素B的效果是它可以减少PM2.5对人体的影响,但还要进一步证明.
解答 29.C.细节理解题.根据第二段They found that Vitamin B supplement could effectively reduce the impact of the tiny particles (颗粒)on the human body,although they stressed that the research was in its early stages可知新发现1款维生素B的效果是它可以减少PM2.5对人体的影响;故选C.
30.A.推理判断题.根据第二段92% of the world's people are living in places where the PM2.5 level goes beyond the recommended level.So it's urgent to find a solution to the problem可知要进一步研究维生素B的效果;故选A.
31.B.细节理解题.根据文章The experiment was then repeated,with each volunteer taking a Vitamin B supplement daily,made up of 2.5mg of folic acid,50mg of Vitamin B6,and l mg of Vitamin B12可知作者通过实验借鉴Vitamin B的新结论;故选B.
32.D.推理判断题.根据最后一段The results emphasized how prevention at an individual level could be used to fight against the damage of PM2.5,the researchers said可知文章最可能在关于健康的网站上看到;故选D.
点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
A. | lots of | B. | A large amount of | ||
C. | A great deal of | D. | Many a |
Multitasking(多任务),as many studies have shown,is a myth(谬论).A more accurate(37)Bof what happens when we tell ourselves we are multitasking is that we're rapidly (38)A between activities,sucking our mental energy.And the(39)Ccan be surprisingly serious.An experiment found that we lose as many as 10IQ points when we allow our work to be(40)D by distractions like emails and text messages.
The(41)Cis that multitasking is enjoyable.It's fun to satisfy your curiosity.Who knows what that next email or text message holds(42)B?Finding out provides immediate satisfaction.(43)D,resisting distractions and staying on task requires (44)Band mental effort.
So,what are we to do?
Our strategy is to change the(45)Cto move temptation further away:shut down your email program or(46)Byour phone.It's a lot easier to stay on task when you're not(47)Afighting off mental desires.
The alternative,which most of us consider common,is(48)Ato dieting in a bakery.We all need the willpower to resist the temptations,but doing so comes with(49)Ccosts to our limited supply of willpower.
Another worthwhile (50)Dis to collect similar activities together,keeping transition (转换) time to a(51)A point.Instead of spreading phone calls,meetings and emails throughout your day,try(52)B related tasks so that there are fewer transitions.
In some jobs,multitasking is(53)C.Some of us truly do need to stay(54)Dto our clients,colleagues and managers.So it's worth noting that limiting disruptions is the only solution.
Remember the more you do to minimize task-switching over the course of the day,the more ability you'll have for activities that actually(55)A.Even small changes can make a big difference.
36.A.initial | B.personal | C.inner | D.ambitious |
37.A.plan | B.account | C.prediction | D.insight |
38.A.switching | B.swinging | C.swapping | D.shuttling |
39.A.benefits | B.reasons | C.consequences | D.challenges |
40.A.guided | B.changed | C.adapted | D.interrupted |
41.A.advantage | B.emphasis | C.trouble | D.practice |
42.A.in stock | B.in store | C.in check | D.in possession |
43.A.As a rule | B.As a result | C.In short | D.In contrast |
44.A.patience | B.discipline | C.courage | D.attention |
45.A.expectation | B.task | C.environment | D vision |
46.A.replace | B.silence | C.answer | D.pick |
47.A.continuously | B.finally | C.passionately | D.directly |
48.A.similar | B.relevant | C.superior | D.opposite |
49.A.affordable | B.basic | C.considerable | D.modest |
50.A.research | B.aspect | C.reaction | D.approach |
51.A.minimum | B.maximum | C.turning | D.fixed |
52.A.analyzing | B.grouping | C.assigning | D.undertaking |
53.A.disturbing | B.annoying | C.unavoidable | D.unnecessary |
54.A.sympathetic | B.loyal | C.accustomed | D.connected |
55.A.matter | B.function | C.work | D.interfere |
I was growing up in Kuala Lumpur in the early 1960s,(43)Dchildren from different races and religions played and studied (44)Ain harmony.At that time my family lived a stone's (45)Bfrom Ismail's.And no one was bothered that Ismail was a Malay Muslim and I was an Indian Hindu-we just (46)Dour differences.Perhaps,our elders had not filled our heads with unnecessary advice,well (47)B or otherwise.
We were nine when we became friends.During the school holidays,we'd (48)Athe countryside on our bicycles,hoping to (49)Cthe unexpected.At times Ismail would accompany my family as we made a rare shopping trip to town.We would be glad of his (50)D.
When I was twelve,my family moved to Johor.Ismail's family later returned to their village,and I(51)A touch with him.
One spring afternoon in 1983,I stopped a taxi in Kuala Lumpur.I (52)A my destination.The driver acknowledged my (53)B but did not move off.Instead,he looked (54)Dat me."Raddar?"he said,using my childhood nickname(绰号).I was astonished at being so (55)Aaddressed (称呼).Unexpectedly!It was Ismail!Even after two (56)Dwe still recognized each other.Grasping his shoulder,I felt a true affection,something (57)C to describe.
If we can allow our children to be (58)B without prejudice,they'll build friendships with people,regardless of race or religion,who will be (59)Btheir side through thick and thin.On such friendships are societies built and (60)Cwe can truly be,as William Shakespeare once wrote,"we happy few,we band of brothers".
41.A.interested | B. pleased | C. puzzled | D.excited |
42.A.parties | B. cities | C. villages | D.races |
43.A.why | B. which | C. how | D.when |
44.A.together | B. around | C. alone | D.apart |
45.A.drop | B. throw | C. move | D.roll |
46.A.refused | B. made | C. sought | D.accepted |
47.A.paid | B. meant | C. preserved | D.treated |
48.A.explore | B. search | C. Discover | D.desert |
49.A.get through | B. deal with | C. come across | D.take away |
50.A.arrival | B. choice | C. effort | D.company |
51.A.lost | B. gained | C. developed | D.missed |
52.A.stated | B. ordered | C. decided | D.chose |
53.A.attempts | B. instructions | C. opinions | D.arrangements |
54.A.anxiously | B. carelessly | C.disappointedly | D.fixedly |
55.A.familiarly | B. strangely | C. fully | D.coldly |
56.A.departures | B. months | C. years | D.decades |
57.A.possible | B. funny | C. hard | D.clear |
58.A.them | B. themselves | C. us | D.ourselves |
59.A.from | B. by | C.with | D.against |
60.A.still | B. otherwise | C. then | D.instead |