[单项选择]Walking is Britain’s most popular outdoor（）and is the most pleasant and satisfying way of discovering the countryside.
A. pastime
B. recreation
C. entertainment
D. pursuit

[单项选择]Walking is Britain’s most popular outdoor （）and is the most pleasant and satisfying way of discovering the countryside.
A. pastime
B. recreation
C. entertainment
D. pursuit

[单项选择]As automation became popular in most factories, labor was made（　）.
A. destined
B. redundant
C. diverse
D. discontent

[单项选择]Steven, （　） very popular with most members, was asked to be the chairman of the tennis club.
A. considered
B. considering
C. having considered
D. to be considered

[单项选择]Christmas is America’s most popular holiday. Some people attend church and observe Christmas as the birthday of Christ. For others Christmas is just a day of fun and celebration, a time for family and friends to get together, exchange girls and enjoy a huge holiday dinner- During the last days of November American homes and stores begin to be decorated with Christmas trees and bright lights. Schools and churches prepare special holiday concerts. People go to parties, buy fine gifts and prepare special Christmas food.
When do Americans begin their Christmas activities
A. At the end of November.
B. In the middle of November.
C. At the beginning of December.
D. In the middle of December.

[单项选择]What’s the most popular heating system according to the engineer
A. Every room has a heater.
B. The Central room has a heater.
C. A heat chamber heats air and passes the warm air through ducts and openings into rooms.
D. The rooms are installed with blowers or convection.

[单项选择]White rice is the world’s most popular form office. But it goes through a milling process that removes many nutrients (营养成分). As a result, people who eat a poor diet based on white rice may not get enough vitamin A.
Each year about 250,000 to 500,000 children go blind from vitamin A deficiency. The World Health Organization (WHO) says haft of them die within a year of losing their sight. Vitamin A deficiency is a problem especially in Africa and Southeast Asia.
So scientists thought of an answer. They combined white rice with plant compounds that the body can change into vitamin A. These plant colorings give the rice a golden color.
The scientists also thought of a plan to give away this Golden Rice for free to poor farmers. But the rice cannot be made using traditional methods. The scientists worked for ten years, until 1990, to develop the technology to add genes to rice. Then it took nine more years to get the genes they wanted into the seed.
Professor
A. In 1980
B. In 1990
C. In 2000
D. In 2004

[单项选择]

White rice is the world’s most popular form office. But it goes through a milling process that removes many nutrients (营养成分). As a result, people who eat a poor diet based on white rice may not get enough vitamin A.
Each year about 250,000 to 500,000 children go blind from vitamin A deficiency. The World Health Organization (WHO) says haft of them die within a year of losing their sight. Vitamin A deficiency is a problem especially in Africa and Southeast Asia.
So scientists thought of an answer. They combined white rice with plant compounds that the body can change into vitamin A. These plant colorings give the rice a golden color.
The scientists also thought of a plan to give away this Golden Rice for free to poor farmers. But the rice cannot be made using traditional methods. The scientists worked for ten years, until 1990, to develop the technology to add genes to rice. Then it took nine more years to get the genes they wanted into the see
A. Because they are short of food
B. Because they feed on white rice
C. Because white rice contains no vitamin
D. Because white rice has no nutrients

[填空题]S6. The most popular music styles enjoyed by the Americans are usually ______.

[单项选择]What was today’s most popular breed of dog, the Labrador was originally bred for（　）.
A. For chasing prey.
B. For herding livestock.
C. Hauling nets and retrieving fish for the fishermen.
D. For keeping accompany.

[单项选择] Influenced by movies and popular novels, most people see sharks as people-eating monsters. This is far from the truth. Every year, a few types of sharks injure about 100 people worldwide and kill about 25. Most attacks are by great white sharks, which often feed on sea lions and other marine mammals (海洋哺乳动物). They sometimes mistake human swimmers for their normal prey, especially if they are wearing black wet suits. If you are a typical ocean-goer, your chances of being killed by an unprovoked attack by a shark are about 1 in 100 million. You are more likely to be killed by a pig than a shark and thou sands of times more likely to get killed when you drive a car. Sharks help save human lives. In addition to providing people with food, they are helping us learn how to fight cancer, bacteria (细菌), and viruses. Sharks are very healthy and have aging processes similar to ours. Their highly effective immune system allows wounds to heal quickly without becoming infected, and their blo
A. the number of people being attacked by sharks
B. the benefits of sharks to improving human health
C. the dangers sharks have brought to human beings
D. the relationship between sharks and human beings