Cancer researchers urged people on Wednesday to take more vitamin D to lower risk of cancer, saying studies showed a clear link. “Our suggestion is for people to increase their intake (吸入，摄入), through diet or a vitamin supplement,” Dr. Cedric Garland said in a telephone interview.

Garland's research team reviewed 63 studies, including several large long-term ones, on the relationship between vitamin D and certain types of cancer worldwide between 1966 and 2004. “There's nothing that has this ability to prevent cancer,” he said, urging governments and public health officials to do more to fortify (增强) foods with vitamin D. Garland is part of a University of California at San Diego Moores Cancer Center team that published its findings this week online in the American Journal of Public Health. Vitamin D is found in milk, as well as in some fortified orange juice, yogurt and cheeses, usually at around 100 international units（IU）a serving. “People might want to consider a vitamin supplement to raise their intake to 1000 IUs per day” Garland said， adding that it was well within the safety guidelines established by the National Academy of Sciences.

The authors said that taking more vitamin D could be especially important for people living in northern areas, which receive less vitamin D from sunshine.

“African Americans, who don't produce as much of the vitamin because of their skin colour, could also benefit significantly from a higher intake,” the authors said.

61. According to the passage, people are advised to take more Vitamin D, because__.

A. it is nutritious             B. it can‘t harm people’s health

C. it can lower cancer risk      D. it is not taken enough every day

62. Which of the following can not help people get more Vitamin D?

A. Have some sunshine        B. Have more meat

C. Have more fortified cheese   D. Have a vitamin supplement

63.Who can Garland probably be?

A. A health researcher        B. A doctor   

C. A scientist               D. A public health official

64.Which of the following food can lower people‘s chance of getting cancer?

A. Milk                    B. Fortified orange juice

C. Fortified yogurt           D. All of the above

65.People from which area should take more Vitamin D according to the passage?

A. Asian people               B. African people 

C. American people            D. European people

出国游有许多需要注意的事项。而付小费是很多国家的普遍现象。由于文化习俗的差异，不同的国家、不同的地区做法不尽相同。以下A、B、C、D、E和F是对亚洲一些城市给付小费的介绍，选出符合编号描述的选项。选项中有一项是多余选项。

1. Most expensive restaurants will add a 10% service charge to the bill.

2.Though tipping is not allowed, people who have served you accept tips in a certain way.

3.Culturally, tipping is unnecessary, but customers sometimes pay service charge when checking out.

4. If you want to get loyal service, you should give a tip more than 10%.

5.You ae not expected to pay tips at a low class hotel.

A

Bangkok （曼谷） There are no established rules of tipping in Bangkok, capital of Thailand. Some places expect it; others don’t. In general, the more westernized the place is, the more likely you’ll be expected to leave a tip.

   Restaurants: Some expensive restaurants will add a 10% service charge to the bill. If not, waiters will appr eciate your increasing by 10% yourself. However, if you’re eating at a cheap eatery, a ti is not necessary.

   Porters: At Bangkok’s many five-star hotels, you’re expected to tip the porter 20 to 50 baht(铢), depending on how many bags you have.

   Taxis: Taxis are now metered in Bangkok, so there’s no bargaining over your fare. The local custom is to round the fare up to the nearest five baht.

 B

Jakarta （雅加达）  Tipping is not part of the Indonesian culture, but international influences have turned some westernized palms upward in search of a few extra rupiah (卢比).

   Restaurants: A 10% service charge is added at most high-end restaurants. At moderately priced restaurants, 5,000 rupiah should do it---if the service is superb, add an extra 1,000 rupiah or so.

   Porters: Pay a few hundred rupiah for each bag.

   Taxis: Most drivers will automatically round up to the next 500 rupiah. Some will claim they have no change and will bleed you for more. Don’t accept anything more than a 1,000-rupiah increase.

C

Kuala Lumpur （吉隆坡）  Like Indonesia, tipping in Malaysia is only common in the expensive westernized joints, which often add a 10% service charge to your meal or hotel bill.

   Restaurants: If you are at a hotel restaurant, expect a 10% service charge or add the same amount yourself. But at local stalls, there’s no need to add a tip.

   Porters: At five-star hotels, one or two ringgit(林吉特) will be enough. At low-end establishments, you are not forced to tip.

   Taxis: Many taxis are now metered, so you can just round up to the nearest ringgit. In unmetered taxis, expect a session of hard bargaining for the ride.

D

Manila （马尼拉）  Tipping is common in Manila, the Philippines, and anything above 10% will gain you long-lasting loyalty.

   Restaurants: Even if a service charge is included, it is a custom to add another 5%-10% to the bill.

   Porters: Service in top hotels is good and should be rewarded with 20% pesos(比索) per bag.

   Taxis: Most taxis are metered, and rounding up to the next five pesos is a good rule of taking taxis.

E

Seoul   Tipping is not part of the Korean culture, although it has become a rule in international hotels where a 10% service charge is often added.

   Restaurants: If you are at a Korean barbecue (烧烤店), there’s no need to add anything extra. But a luxury Italian restaurant may require a 10% service charge.

   Porters: If you are at a top-end hotel, international standards apply, so expect to tip 500-1,000 won per bag.

   Taxis: Drivers don’t expect a tip, so unless you’re feeling remarkably generous, keep the change for yourself.

F

Singapore City   According to government rules in the Lion City, tipping is a no-no. It’s basically outlawed at Changi Airport and officials encourage tourists to neglect the 10% service charge that many high-end hotels add to the bill.

   Restaurants: Singaporeans tend not to leave tips, especially at the outdoor eateries. Nicer restaurants do sometimes charge a 10% service fee, but there’s no need to supplement that.

   Porters: Hotel staff are the one exception to the no-tipping rule. As a general guide, S$1 would be enough for baggage-lugging service.

   Taxis: Drivers don’t expect tips, but they won’t refuse if you want to round up the fare to the next Singaporean dollar.

Six Ways to Improve Reading Comprehension

Help your child keep what he reads—a crucial skill, especially as he gets older and needs to gain important information from textbooks.

Have him read aloud. This forces him to go slower, which gives him more time to process what he reads.  71 

Provide the right kinds of books. Make sure your child gets lots of practice reading books that aren’t too hard.  72  Stopping any more often than that to figure out a word makes it tough for him to focus on the overall meaning of the story.

  73  To gain meaning from text, your child needs to read quickly and smoothly—a skill known as fluency. Rereading familiar, simple books gives your child practice at decoding words quickly so he'll become more fluent.

Talk to the teacher. If your child is struggling hard with comprehension, he may need more help with his reading—for example, building his vocabulary or practicing phonics skills.

Supplement class reading. If his class is studying a particular theme, look for easy-to-read books or magazines on the topic. Some prior knowledge will make his way through tougher classroom texts.

Talk about what he's reading. This “verbal processing” helps him remember and think through the themes of the book.  74 For example:

●Before: “What interests you in this book? What doesn't?”

●During: “  75 Is it turning out the way you thought it would? ”

●After: “Can you summarize the book? What did you like about it?”

E. Ask questions before, during, and after a reading session.

F. Plus, he's not only seeing the words, he's hearing them, too.

G. He should recognize at least 90 percent of the words without any help.

Sixteen-year-old Karlos Dearmans’s future is looking much brighter than be might have imagined. “I’ve always been into bikes, but never thought I’d end up working with them,” he says. “This scheme has changed my life.”

Karlos is learning to refurbish(翻新) old bicycles in the workshop of ReCycle Bikes, a local community(社区) charity in Sheffied, which has a contract with the city council to provide training opportunities for young people aged 14 to 16, particularly those dropping out of school.

“It’s about engaging youngsters with education and you thtraining by teaching them work and life skills,” explains Des Pearce, workshop training manager. “These young people have so much potential, but often don’t realize it.”

Established in 2001, ReCycle Bikes repairs bicycles donated by the public, which, once restored, are sold for ￡20. Abandoned bikes supplied by the council ensure a steady flow of bikes, but a recently formed partnership with Sheffield University should improve further the prospects of the young mechanics.

　　“The student population presents a large and ready market,” says Pearce. “So we approached the university last year and offered to host bike sales on the campus. They thought it was a great idea, and agreed to supplement our council funding. This means we can train youngsters to repair extra 500 bikes over three years.”

　　Having set up ReCycle Bikes on his own, Pearce now has the staff and resources to track the career development of those who have passed through his workshop. “However, in the past we depended on the evidence of personal accounts from the schools because of lack of human and material resources,” he says.

　　That most of the teenagers enjoy the work is, according to Pearce, easily explained. “Most kids have ridden a bike and know how to oil a chain or mend a puncture. As low-cost transport, cycling gives the young and old a sense of freedom and independence, and the impact on their well-being is immense. Add to that a growing concern for the environment, and it’s no surprise that bike sales are on the increase.”

72．What do we know about ReCycle Bikes?

A．It is a popular brand of bikes which are sold in Sheffield．

B．It is a local community charity that provides training opportunities for reenagers．

C．It is a contract signed between a local community charity and the city council．

D．It is a training program offered by the city council to those excluded from school．

73．How did ReCycle Bikes run at the beginning?

A．By repairing bicycles donated by the public and selling them．

B．By donations from the public and Sheffield University．

C．By selling bicycles supplied by the city council．

D．By tuition fees from kids aged between 14 and 16．

74．ReCycle Bikes has formed a partnership with Sheffield University because ____________．

A．students at Sheffield University assure a large and ready market

B．Sheffield University offers many mechanical teachers to ReCycle Bikes

C．Sheffield University donates a lot of money to ReCycle Bikes

D．teenagers at ReCycle Bikes can study at Sheffield University

75．ReCycle Bikes depended on information from the schools in the past because     .

A．the schools could give accurate information to improve its service

B．students disliked telling the truth when asked about their personal ideas

C．ReCycle Bikes didn’t have the ability to track students’ career development．

D．most of the training organizations did it this way at that moment

Passage four(preface)
Science is a dominant theme in our culture. Since it touches almost every facet of our life, educated people need at least some acquaintance with its structure and operation. They should also have an understanding of the subculture in which scientists live and the kinds of people they are. An understanding of general characteristics of science as well as specific scientific concepts is easier to attain if one knows something about the things that excite and frustrate the scientist.
This book is written for the intelligent student or lay person whose acquaintance with science is superficial; for the person who has been presented with science as a musty storehouse of dried facts; for the person who sees the chief objective of science as the production of gadgets; and for the person who views the scientists as some sort of magician. The book can be used to supplement a course in any science, to accompany any course that attempts to give an understanding of the modern world, or – independently of any course – simply to provide a better understanding of science. We hope this book will lead readers to a broader perspective on scientific attitudes and a more realistic view of what science is, who scientists are, and what they do. It will give them an awareness and understanding of the relationship between science and our culture and an appreciation of the roles science may play in our culture. In addition, readers may learn to appreciate the relationship between scientific views and some of the values and philosophies that are pervasive in our culture.
We have tried to present in this book an accurate and up-to-date picture of the scientific community and the people who populate it. That population has in recent years come to comprise more and more women. This increasing role of women in the scientific subculture is not an unique incident but, rather, part of the trend evident in all segments of society as more women enter traditionally male-dominated fields and make significant contributions. In discussing these changes and contribution, however, we are faced with a language that is implicitly sexist, one that uses male nouns or pronouns in referring to unspecified individuals. To offset this built-in bias, we have adopted the policy of using plural nouns and pronouns whenever possible and, when absolutely necessary, alternating he and she. This policy is far form being ideal, but it is at least an acknowledgment of the inadequacy of our language in treating half of the human race equally.
We have also tried to make the book entertaining as well as informative. Our approach is usually informal. We feel, as do many other scientists, that we shouldn’t take ourselves too seriously. As the reader may observe, we see science as a delightful pastime rather than as a grim and dreary way to earn a living.
1.According to the passage, ‘scientific subculture’ means
A.cultural groups that are formed by scientists.
B.people whose knowledge of science is very limited.
C.the scientific community.
D.people who make good contribution to science.
2.We need to know something about the structure and operation of science because
A.it is not easy to understand the things that excite and frustrate scientists.
B.Science affects almost every aspect of our life.
C.Scientists live in a specific subculture.
D.It is easier to understand general characteristics of science.
3.The book mentioned in this passage is written for readers who
A.are intelligent college students and lay person who do not know much about science.
B.are good at producing various gadgets.
C.work in a storehouse of dried facts.
D.want to have a superficial understanding of science.
4.According to this passage,
A.English is a sexist language.
B.only in the scientific world is the role of women increasing rapidly.
C.women are making significant contributions to eliminating the inadequacy of our language.
D.male nouns or pronouns should not be used to refer to scientists.
5.This passage most probably is
A.a book review.
B.the preface of a book.
C.the postscript of a book.
D.the concluding part of a book.