该句是无人称句: Se buscan actores para la película.（）

A．自复被动句

B．无人称句

Before the conference began, a Japanese businessman was introduced to an American businessman at the lounge. The Japanese businessman, arms extending downwards from his shoulders, bowed from his waist toward the American businessman to whom he was just introduced. His eyes were directed ahead, his face showed no particular expression.

The American businessman stood straight. His eyes focused on the Japanese man's eyes. He smiled and put out his right hand.

Both men smiled briefly in embarrassment. The Japanese man straightened up and put out his right hand. The American withdrew his hand and bowed his head. A broader smile of embarrassment, and some noise from each man—not really words, just some sounds from their throats—indicating discomfort. They were in the course of a conflict of customs; they had different habits for greeting people they were being introduced to.

When people are planning to go to another country, they expect to encounter certain kinds of differences. They usually expect the weather and the food to be different. They expect to find differences in some of the material aspects of life, such as the availability of cars, electricity, and home heating systems. And, without knowing the details, they expect differences in customs. Customs are the behaviors that are generally expected in specific situations. American men, for example, shake hands with each other when first introduced while Japanese men bow.

When introduced to the Japanese businessman, the American businessman put out his right hand because ______.

A．he felt a little bit nervous

B．he wanted to express his discomfort

C．he felt a little offended by the Japanese man

D．he wanted to shake hands with the Japanese man

Before the conference began, a Japanese businessman was introduced to an American businessman at the lounge. The Japanese businessman, arms extending downwards from his shoulders, bowed from his waist toward the American businessman to whom he was just introduced. His eyes were directed ahead, his face showed no particular expression.

The American businessman stood straight. His eyes focused on the Japanese man's eyes. He smiled and put out his right hand.

Both men smiled briefly in embarrassment. The Japanese man straightened up and put out his right hand. The American withdrew his hand and bowed his head. A broader smile of embarrassment, and some noise from each man—not really words, just some sounds from their throats—indicating discomfort. They were in the course of a conflict of customs; they had different habits for greeting people they were being introduced to.

When people are planning to go to another country, they expect to encounter certain kinds of differences. They usually expect the weather and the food to be different. They expect to find differences in some of the material aspects of life, such as the availability of cars, electricity, and home heating systems. And, without knowing the details, they expect differences in customs. Customs are the behaviors that are generally expected in specific situations. American men, for example, shake hands with each other when first introduced while Japanese men bow.

When introduced to the Japanese businessman, the American businessman put out his right hand because ______.

A．he felt a little bit nervous

B．he wanted to express his discomfort

C．he felt a little offended by the Japanese man

D．he wanted to shake hands with the Japanese man

Which of your two hands do you use much better? Very few of us can use both of our hands equally well. Most of us are right - handed. Only about five people out of a hundred are left - handed. Newborn ha bies can grasp objects with either of their hands, but in about two years they usually prefer to use their right hands.

Scientists don't know why this happens. They used to think that we inherited (继承) this tendency from our animal ancestors (祖先), but this may not be true. Monkeys are our closest relatives in the animal world. Scientists have found that monkeys prefer to use one of their hands more than the other, but it can be either hand. There are as many right - handed monkeys as there are left - handed ones. Next time you visit the zoo, watch the monkeys carefully. You' 11 see that some of them will prefer to swing from their right hands, and others will use their left hands. But most human beings use their right hands better, and this makes life difficult for those who prefer to use their left hands.

Most of us use our right hands ______ the left ones.

A．as well as

B．not so well as

C．much better than

D．more better than

Which of your two hands do you use more? Very few of us can use both hands equally well. Most of us are right-handed. Only about five people out of a hundred are left-handed. New-born babies can take hold of things with either of their hands, but. in about two years they usually use their right hands. Scientists have found that monkeys like to use one of their hands more than the other, but it can be either hand. There are as many right-handed monkeys as there are left-handed ones. Next time when you visit a zoo, you'll see that some of them will use their right hands and others will use their left hands. But most of the people use their right hands better and this makes life difficult for those left-handed people. We live in a right-handed world.

Most people ______.

A．are left-handed

B．are right-handed

C．can use both hands equally well

D．never use left hands

Every day 25 million US children ride school buses. The safety record for these buses is much better than for passenger cars; but nevertheless, about 10 children are killed each year riding on large school buses, and nearly four times that number are killed outside buses in the loading zones. By and large, however, the nations school children are transported to and from school safely. Even though the number of school bus casualties(伤亡事故)is not large, the safety of children is always of intense public concern. While everyone wants to see children transported safely, people are divided about what needs to be done — particularly whether seat belts should be mandatory(强制性的). Proponents of seat belts on school buses — many of them are parents and medical organisations — argue that seat belts are necessary not only to reduce fatality and injury, but also to teach children lessons about the importance of using them routinely in any moving vehicle. A side benefit, proponents point out, is that seat belts help keep children in their seats, away from the bus driver. Opponents of seat belt installation suggest that children are already well protected by the school buses that adhere to the National Highway Traffic Safety Administrations(NHTSA)safety requirements set in 1977. They also believe that many children wont wear seat belts anyway, and that they may damage the belts or use them as weapons to hurt other children. A new Research Council report on school bus safety suggests that there are alternate safety devices and procedures that may be more effective and less expensive. For example, the study committee suggested that raising seat backs four inches may have the same safety effectiveness as seat belts. The report sponsored by the Department of Transportation at the request of Congress, reviews seat belts extensively while taking a broader look at safety in and around school buses.

What information can we get from the first paragraph?

A．School buses killed the smallest number of children in America.

B．School buses are much safer than passenger cars in America.

C．Outside buses in loading zones killed the most children in America.

D．Children in America mainly take school buses to and from school.