By far,the most common reason people cited for being willing to go out of their way to help

　　others was their upbringing. “It’ S the way I was raised， ” said one young woman who held a door

　　open despite struggling with her umbrella on a rainy day in Brooklyn.

　　We realize this isn’t a rigorous scientific study,but we believe it is a reasonable real-world test

　　of good manners around the globe. And it's comforting to know that in a place where millions of

　　people push one another each day tO get ahead，they’re able to do it with a smile.Hey,if they

　　Can make nice here，they can make nice anywhere.

　　41.Which of the following is the best wold to describe the experiments?

　　A.Scientific. B.Biased. C.Revolutionary. D.Realistic.

　　答案：D

　　42 . The examples of the pregnant woman and Liz are used to show that some

　　people___________________.

　　A.may take the trouble to help others

　　B. Won’t take the trouble to help others

　　C.mayhelp others save time

　　D.won’t help others save time

　　答案：A

　　43.According to the experiments，________________.

　　A.women are more careful.

　　B.women are more likely tO need help

　　C.men are more ready to.help

　　D. men are more democratic in helping others

　　答案：C

　　44.Helping others is a behavior that is largely influenced by_______________.

　　A.social norm

　　B.family education

　　C. pecifie situation

　　D.personal character

　　答案：B

　　45.The results of the experiments have shown that common courtesies_______________.

　　A.are still with us

　　B.are disappearing

　　C. vary with professions

　　D. need rigorous study

　　答案：A

　　Passage Four

　　Within a large concrete room，Cut out of a mountain on a freezing-cold island just 1,000

　　kilometres from the North Pole，could lie the future of humanity.

　　The room is a vault(地下库)designed to hold around 2 million seeds,representing all known

　　varieties of the world’S crops.It is being built to safeguard the world’S food supply against

　　nuclear War,climate change，terrorism，rising sea levels，earthquakes and the collapse of

　　electricity supplies。 “If the worst came to the worst，this would allow the world to reconstruct

　　agriculture on this planet， ”says Cary Fowler,director of the Global Crop Diversity Trust，an

　　independent international organisation promoting the project.

　　The Norwegian(挪威的)government is planning tO create the seed bank next year at the request

　　of crop scientists.The $3 million vault will be built deep inside a sandstone mountain on the

　　Norwegian Arctic island of Spitsbergen.The vault will have metre-thick walls of reinforced

　　concrete and will be protected behind two airlocks and high-security doors.

　　The vault’S seed collection will represent the products of some 10，000 years of plant

　　breeding by the world’S farmers.Though most are no longer widely planted，.the varieties