[单项选择]In recent years people have become interested in purchasing gemstones for investment.
A. works of arts
B. rural land
C. houses
D. jewels

[单项选择]

For years and years people have been saying that the railways are dead. "We can do without railways," people say, as if motorcars and planes have made the railways unnecessary. We all keep heating that trains are slow, that they lose money, and that they are dying. But this is far from the troth. In those days of expensive oil, the railways have become highly competitive with motorcars and planes. If you want to carry people or goods from place to place, they are cheaper than planes. And they have much in common with planes. A plane goes in a straight line and so does a railway. ,What is more, it takes from the heart of a city into the heart of another. It doesn’t leave you as a plane does, miles and miles from the city center. It doesn’t hold you up as a car . does, in endless traffic jams. And a single train can carry goods which a plane or motorcar could never do.
Far from being dead, the railways are very much alive. Modem railway lines give you
A. we can do without railways
B. trains have much in common with motorcars and planes
C. motorcars and planes are not as good as trains
D. trains are as good as motorcars and planes

[单项选择]Why do some people become vegetarians


A. They feel that eating animals is unethical.
B. There are fewer livestock available due to the environmental pollution.
C. The consumption of meat will lead to financial problem.
D. Being a vegetarian is beneficial to the protection of water.

[单项选择]

In only twenty years Asian Americans have become the fastest- growing US minority. As their children began moving up through the nation’s schools, it became clear that a new class of academic achievers was appearing. Their achievements are reflected in the nation’s best universities, where mathematics, science and engineering departments have taken on a decidedly Asian character. This special liking for mathematics And science is partly explained by the fact that Asian-American students who began their educations abroad arrived in the US with a solid grounding in mathematics but little or no knowledge of English. They are also influenced by the promise of a good job after college. Asians feel they will be judged more objectively. And the return on the investment in education is more immediate in something like engineering than with an arts degree.
Most Asian-American students owe their success to the influence of parents who are determined that their c
A. mathematics and English
B. mathematics and science
C. science and arts
D. arts and engineering