[单项选择]

Thousands of gypsies have been trying to emigrate to Canada and Britain. They say they are fleeing persecution(迫害), but most have found they are not welcome in these countries either. Gypsies have never had a home.
Europe has experienced enormous upheavals this century. Wars, revolutions, separations and elections have changed the political map of the continent countless times. And with each change, power has shifted, creating new winners and new losers.
But for one group -- the gypsies -- change has always meant losing. With each upheaval, the gypsies have been left worse off than they were before. Yet they have survived to become Europe’s largest minority. Moreover, they have succeeded in preserving their culture and their way of life in the face of genocide (种族灭绝), political persecution and poverty.
In other cases where minorities have survived similar persecutions -- like Jews during World War Ⅱ, or blacks in South Africa -- their cause has recei
A. more pleasant than before
B. more favorable than before
C. more difficult than before
D. more diverse than before

[单项选择]

Thousands of gypsies have been trying to emigrate to Canada and Britain. They say they are fleeing persecution(迫害), but most have found they are not welcome in these countries either. Gypsies have never had a home.
Europe has experienced enormous upheavals this century. Wars, revolutions, separations and elections have changed the political map of the continent countless times. And with each change, power has shifted, creating new winners and new losers.
But for one group -- the gypsies -- change has always meant losing. With each upheaval, the gypsies have been left worse off than they were before. Yet they have survived to become Europe’s largest minority. Moreover, they have succeeded in preserving their culture and their way of life in the face of genocide (种族灭绝), political persecution and poverty.
In other cases where minorities have survived similar persecutions -- like Jews during World War Ⅱ, or blacks in South Africa -- their cause has recei
A. has received much help from the world
B. has received little help from the world
C. has been valued as an accomplishment
D. has contributed to improving their social status

[单项选择]Over the centuries, scientists have been trying hard to find satisfactory substitutes for precious stones but failed many times.
Many years ago, a chemist surprised the world by saying: It should be possible to make a precious stone that not only looks like the real thing, but that is the real thing. The only difference should be that one crystal would be made by man, the other by nature.
At first this did not seem like a particularly hard task. Scientists began to try making synthetic diamonds towards the end of the eighteenth century and discovered a key scientific fact: diamonds are a form of carbon, which is a very common element.
Then, why not change a cheap and plentiful substance, carbon, into a rare and expensive one, diamond This change takes place in nature, so it should be possible to make it happen in the laboratory.
It should be possible, but for 150 years every effort failed though several people believed that they had solved the diamond riddle
A. it is a real thing that man was able to make a precious stone as nature can do.
B. man should be able to make a precious stone that is exactly the same as a natural one.
C. there is only a little difference between a man-made crystal and a nature-made one.
D. scientists expect a small difference between a man-made crystal and a nature-made one.

[单项选择]I have been trying to quit smoking.
A. give up
B. pick up
C. build up
D. take up

[填空题]Up till now the police have been trying to find out what the chairman of the. board of(direct) （）died of.

[单项选择]Passage Three