[填空题]Thirty percent of deaths in the United States are caused by smoking-related diseases.

[填空题]Thirty per cent of deaths in the United States are caused by smoking-related diseases.

[单项选择]

Passage 1
In the United States, 30 percent of the adult population has a "weight problem." To many people, the cause is obvious: they eat too much. But scientific evidence does little to support this idea. Going back to the America of the 1910s, we find that people were thinner than today, yet they ate more food. In those days people worked harder physically, walked more, used machines much less and didn’t watch television.
Several modern studies, moreover, have shown that fatter people do not eat more on average than thinner people. In fact, some investigations, such as the 1979 study of 3 545 London office workers, report that, on balance, fat people eat less than slimmer people.
Studies show that slim people are more active than fat people. A study by a research group at Stanford University School of Medicine found the following interesting facts:
The more the men ran, the more body fat they lost.
The more they ran, the g
A. they are too slim
B. they work too hard
C. they are too fat
D. they lose too much body fat

[单项选择] In the United States, 30 percent of the adult population has a "weight problem". To many people, the cause is obvious: they eat too much. But scientific evidence does little to support this idea. Going back to the America of the 1910s, we find that people were thinner than today, yet they ate more food. In those days people worked harder physically, walked more, used machines much less and didn’t watch television. Several modern studies, moreover, have shown that fatter people do not eat more on the average than thinner people. In fact, some investigations, such as the 1979 study of 3,545 London office workers, report that, on balance, fat people eat less than slimmer people. Studies show that slim people are more active than fat people. A study by a research group at Stanford University School of Medicine found the following interesting facts: The more the men ran, the more body fat they lost. The more they ran, the greater amount of food they ate. Thus, t
A. they are too slim
B. they work too hard
C. they are too fat
D. they lose too much body fat

[单项选择]In the United States, 36 states currently allow capital punishment for serious crimes such as murder. Americans have always argued about the death penalty. Today, there is a serious question about this issue: Should there be a minimum age limit for executing criminals In other words, is it right for convicted murderers who kill when they are minors--i, e. , under the age of 18--to receive the death penalty
In most other countries of the world, there is no capital punishment for minors. In the United States, though, each state makes its own decision. Of the 36 states that allow the death penalty, 30 permit the execution of minors.
In the state of South Carolina, a convicted murderer was given the death penalty for a crime he committed while he was a minor. In 1977, when he was 17 years old, James Terry Roach and two friends brutally murdered three people. Roach’s lawyer fought the decision to execute him. The young murderer remained on Death Row (a separate part of prison for
A. the boy died in an electric chair
B. Roach was not the first minor criminal executed in South Carolina
C. the boy committed a crime
D. the boy was 14 years old when he died