【正文】 ing facts: The more the men run, the more body fat they lost. The more they ran, the greater amount of food they ate. Thus, those who run the most ate the most, yet lost the greatest amount of body fat.1. The physical problem that many adult Americans have is that ________.A. they are too slim B. they work too hardC. they are too fat D. they lose too much body fat2. According to the article, given 500 adult Americans, ________ will have a weight problem.A. 30 B. 50 C. 100 D. 1503. Is there any scientific evidence to support that eating too much is the cause of a weight problem?A. Yes, there is plenty of evidence.B. Of course, there is some evidence to show this is true.C. There is hardly any scientific evidence to support that.D. We don’t know because the information is not given.4. In parison with the adult American population today, the Americans of the 1910s _______.A. ate more food and had more physical activities.B. ate less food but had more activitiesC. ate less food and had less physical exerciseD. had more weight problems5. Modern scientific researchers have reported to us that ________.A. fat people eat less food and are less activeB. fat people eat more food than slim people and are more activeC. fat people eat more food than slim people but are less activeD. thin people run less, but have greater increase in food intakePassage 9Mass media, the tools of munication, can be divided into two groups: print media and electronic media. By print media, we mean books, newspapers and magazines. Electronic media include television, puter, radio and movie. Mass media allow us to record and pass information rapidly to a large, scattered audience. They extend our ability to talk to each other by helping us overe barriers cause by time and space.Mass media make daily life easier for us in various ways. Firstly, they help us keep a watch on our world. They gather and pass on information we would be unlikely or unable to obtain on our own.Secondly, mass media help us arrange our time and life. What we talk about and what we think about are greatly influenced by the media. When people get together, they tend to talk about certain happenings in newspapers or on TV. Because we are exposed to different points of view through different kinds of media every day, we are able to evaluate all sides of a certain issue.Thirdly, the media are used to persuade people. Newspapers, magazines and TV are filled with all kinds of colorful, persuasive advertisements. Though many advertisements may not say openly that they want you to buy a certain product, they describe their products in such a way that you may want to buy them.Fourthly, the media also entertain. All media make efforts to entertain their audience. For instance, even though the newspaper is a prime medium of information, it also contains entertainment features. Television, motion picture, some radio stations and magazines are devoted mainly to entertainment. It is estimated that in the future, the entertainment function of mass media will bee even more important than it is now.1. What makes it possible for people living in different places to municate with each other?A. Printed media. B. Mass media.C. Electronic media. D. Computers.2. Which of the following functions of mass media is NOT mentioned?A. To make people well informed about the world.B. To amuse and entertain people.C. To help people arrange their time and life.D. To give people a sense of honor.3. Certain matters in newspapers or on TV tend to be talked about when people get together because ________.A. people are curious about themB. people are influenced by those mass mediaC. it is fashionable for people to do soD. it is easy for people to municate in this way4. How does advertisement make people purchase certain goods according to the passage?A. By giving an attractive account of the goods.B. By asking people to buy them.C. By forcing people to buy them.D. By giving people something extra.5. Which of the following media is mainly devoted to information according to the passage?A. TV. B. Magazine.C. Motion pictures. D. Newspapers.Passage 10 Man has always wanted to fly. Some of the greatest men in history had thought about the problem. One of them, for example, was the great Italian artist, Leonardo Da Vinci. In the 16th century he made designs for machines that would fly, but they were never built.Throughout history, other less famous men had wanted to fly. An example was a man in England 800 years ago. He made a pair of wings from chicken feathers. Then he fixed them to his body and jumped into air from a tall building. He did not fly very far. Instead, he fell to the ground and broke every bone of his body and rested in peace.The first real step took place in France, in 1783. Two brothers, the Montgolfiers, made a very large “hot air balloon”. They knew that hot air rises. Why not fill a balloon with it? The balloon was made of cloth and paper. In September of that year, the King and Queen of France came to see the balloon. They watched it carry the very first air passengers into the sky. The passengers were a sheep and a chicken. We do not know how they felt about the trip. But we do know that the trip lasted eight minutes and that the animals landed safely. Two months later, two men did the same thing. They rose above Paris in a balloon of the same kind. Their trip lasted twentyfive minutes and they traveled about.1. Leonardo Da Vinci _______.A. said that man would fly in the sky one dayB. built a kind of machine which never flewC. made designs for flying machinesD. drew many beautiful pictures of birds2. Eight hundred years ago an Englishman _______.A. made a kind of flying machineB. tried to fly with wings made of