萬題庫：英語四級仔細(xì)閱讀真題及答案(卷一).doc

1、萬題庫：2018年6月英語四級仔細(xì)閱讀真題及答案（卷一）Partffi Readi ng Section CPassage OneLosing your ability to think and remember is pretty scary. We know the risk of dementia（癡呆）increases with age. But if you have memory slips, you probably needn' Worry. There are pretty clear differe nces betwee n sig ns of deme nti

2、a and age-related memory loss.After age 50, it ' s quite com mon to have trouble rememberi ng the n ames of people, places and thing quickly, says Dr. Kirk Daffner of Brigham and Woma ns Hospital in Bost on.The brain ages just like the rest of the body. Certa in parts shri nk, especially areas i

3、n the brain that are importa nt to lear ning, memory and pla nning. Chan ges in brain cells can affect com muni cati on betwee n differe nt regi ons of the brain. And blood flow can be reduce as vessels n arrow.Forgett ing the n ame of an actor in a favorite movie, for example, is nothing to worry a

4、bout. But if you forget the plot of the movie or dont remember even seeing it, that 'far more concerning, Daffner says.Whe n you forget en tire experie nces, he says, thats a red flag that someth ing more serious may be in volved. Forgett ing how to operate a familiar object like a microwave ove

5、 n, or forgett ing how to drive to the house of a frie nd youve visited many times before can also be sig ns of someth ing going wrong.But eve n the n, Daffner says, people should nt panic. There are many things that can cause con fusi on and memory loss, i nclud ing health problems like temporary s

6、toppage of breath ing duri ng sleep, high blood pressure, or depression, as well as medications like an tidepressa nts.You dont have to figure this out on your own. Daffner suggests going to your doctor to check on medicati ons, health problems and other issues that could be affecting memory. And th

7、e best defense aga inst memory loss is to try to preve nt it by buildi ng up your brains cognitive（認(rèn)知的）reserve, Daffner says.Read books, go to movies, take on new hobbies or activities that force one to think in no vel ways, he says. In other words, keep your brain busy and working. And also get phy

8、sically active, because exercise is a known brain booster.46. Why does the author say that one n eed nt be concerned about memory slips?A. Not all of them are symptoms of deme ntia.B. They occur only among certa in groups of people.C. Not all of them are related to ones age.D. They are quite com mon

9、 among fifty-year-olds.A47. What happe ns as we become aged accord ing to the passage?A. Our in teracti on skills deteriorate.B. Some parts of our brain stop fun cti oning.C. Com mun icatio n within our brain weake ns.D. Our whole brain starts shri nking.C48. Whichmemory-related symptom should peopl

10、e takeseriously?A. Totally forgett ing how to do ones daily rout in es.B. ln ability to recall details of ones life experie nces.C. Failure to remember the n ames of movies or actors.D. Occasi on ally confusing the addresses of ones frien ds.49. What should people do whe n sig ns of serious memory l

11、oss show up?A. Check the brains cog nitive reserve.B. Tur n to a professi onal for assista nee.C. Stop medicati ons affect ing memory.D. Exercise to improve their well-be ing.B50. What is Dr. Daffners advice for combat ing memory loss?A. Hav ing regular physical and men tal checkups.B. Taki ng medic

12、 ine that helps boost ones brain.C. En gag ing in known memory repair activities.D. Stayi ng active both physically and men tally.DPassage TwoYou probably know about the Tita nic, but it was actually just one of three state-of-the art（最先進(jìn)的）ocean ships back in the day. The Olympic class ships were bu

13、ilt by the Harla nd Wolff ship makers in Norther n Irela nd for the White Star Li ne compa ny. The Olympic class in cluded the Olympic, the Brita nnic and the Tita nic. What you may not know is that the Tita nic was nt eve n the flagship of this class. All in all, the Olympic class ships were marvel

14、s of sea engin eeri ng, but they seemed cursed to suffer disastrous fates.The Olympic laun ched first in 1910, followed by the Tita nic in 1911, and lastly the Brita nnic in 1914. The ships had nine decks, and White Star Li ne decided to focus on maki ng them the most luxurious ships on the water.St

15、retchi ng 269.13 meters, the Olympic class ships were won ders of n aval tech no logy, and every one thought that they would continue to be so for quite some time. However, all suffered terrible accide nts on the ope n seas. The Olympic got wreaked before the Tita nic did, but it was the only one to

16、 survive and maintain a successful career of 24 years. The Titanic was the first to sink after famously hitting a huge iceberg in 1912. Following this disaster, the Britannic hit a n aval mine in 1916 and subseque ntly sank as well.Each ship was coal-powered by several boilers con sta ntly kept runn

17、ing by exhausted crews below deck. Most recognizable of the ship desig ns are the ships smoke stacks, but the fourth stack was actually just artistic in nature and served no functional purpose. While two of these ships sank, they were all desig ned with doucle hulls（船體）believed to make them unsin ka

18、ble, perhaps a mistake n idea that led to the Tita nics and the Brita nnics tragic end.The Olympic suffered two crashes with other ships and went on to serve as a hospital ship and troop transport in World War I. Eve ntually, she was take n out of service od 1935, ending the era of the luxurious Oly

19、mpic class ocea n lin ers.51. What does the passage say about the three Olympic class ships?A. They performed marvellously on the sea.B. They could all break the ice in their way.C. They all experie need terrible misfort un es.D. They were models of moder n engin eeri ng.C52. What did White Star Line have in mi nd whe n it purchased the three ships?A. Their capacity of sail ing across all waters.B. The utmost comfort passe ngers could enjoy.C. Their ability to survive disasters of any kind.D. The long voyages they were able to un dertake.B53. What is said about the fourth s