题目内容：

Should parents ever hit their children?

Research suggests many of us are likely to respond “no”, and public support for spanking (打屁股) has been falling over the years. But surveys also show that 75 percent to nearly 90 percent of parents admit spanking their child at least once.

I was raised in a zero-tolerance( 零容忍) home for disrespect, and my parents often turned to physical punishment. And, no, I don’t feel I was damaged by it.

Nothing is more annoying than watching ill-mannered behavior from children.

But there is data to suggest that a return to old-school spanking isn’t the answer.

Two years ago , Newsweek reported that it had found data suggesting that teens whose parents used physical punishment were more likely to become aggressive(好斗的).

Murray Straus, professor at the University of New Hampshire in America, has studied the topic of children and spanking for decades. He said that children who were physically punished have lower IQs than their peers. It may be that children with lower IQs were more likely to get spanked, but the punishment may have been counterproductive (反作用) to their mental development, as well.

Some researchers make the argument that occasional open-handed smacks (用巴掌打) on the bottom are not only harmless but can have some benefit.

Last year, Marjorie Gunnoe, a psychologist at Calvin College, studied teens who have never been spanked. There are a greater number of children growing up without ever having been physically punished. Gunnoe’s research suggests they don’t turn out any better than those who were sometimes spanked.

There are some parents who simply cannot control their tempers. But I still believe that the best parents are the ones who are able to offer fair and firm discipline (管教) without ever turning to physical punishment.

1. What can we know from the research in the second paragraph?

A．Many of the parents made no response to the survey.

B．More and more people support spanking in public.

C．Most parents have the experience of spanking their children.

D．Many of the parents think they should hit their children.

2. According to Marjorie Gunnoe’s research, ________ .

A．the children who have never been spanked do better than those who were sometimes spanked

B．instead of harmless, spanking can have a little benefit

C．spanking has little effect on the children’s future performance

D．the teens who were often spanked are more likely to be aggressive

3. In the author’s opinion, the best parents are the ones ______.

A．who often use physical punishment	B．who never use physical punishment
C．who use physical punishment properly	D．who take physical punishment as useful tool

4.Which of the following is NOT TRUE according to the passage?

A．The author’s parents were strict with him when he was young.

B．The author thinks his parents’ spanking did no harm to him.

C．Murray Straus thinks spanking has nothing to do with children’s IQs.

D．Some parents spank their children because they can’t control their tempers.