Questions 18—20 are based on the following talk.
Are organically grown foods the best food choices The advantages claimed for such foods over conventionally grown and marketed food products are now being debated. Advocators of organic foods (a term whose meaning varies greatly) frequently proclaim that such products are safer and more nutritious than others.
The growing interest of consumers in the safety and nutritional quality of the typical North American diet is a welcome development. However, much of this interest has been sparked by sweeping claims that the food supply is unsafe or inadequate in meeting nutritional needs. Although most of these claims are not supported by scientific evidence, the preponderance of written material advancing such claims makes it difficult for the general public to separate fact from fiction. As a result, claims that eating a diet consisting entirely of organically grown foods prevents or cures disease or provides other b
A. It is a variation of organically grown foods.
B. It has been welcomed by more and more people.
C. It is greatly welcomed by women in North America.
D. It is not safe and nutritious.
Questions 11—13 are based on the following talk.
Many residential burglaries occur because of widespread misconceptions. For example, while people typically worry about nighttime thefts, almost half of residential break-ins happen during the day, when homes are vacant because owners are working. Moreover, robbing a house probably takes less time than many people think. "Most burglars get in and out in less than ten minutes," says Jean O’ Nell, director of research and policy at the National Crime Prevention Council in Washington, D.C. And thieves are well aware that, even for properties with sophisticated security systems, time is on their side. Police can take five to 45 minutes to respond to an alarm or call, especially in rural or suburban areas where they may have considerable distance to cover.
To protect your home, you have to lock doors and windows when you go out, even if you’re just going out to walk the dog or have a quick cha
A. People do not lock their doors when they pop out even for 5 minutes.
B. The security systems in their house are not sophisticated enough.
C. People have formed a wrong opinion of burglars’ robbing habits.
D. People are somewhat careless about the security systems in their home.
Questions 14—17 are based on the following talk.
What do we think with Only the brain Hardly. The brain is like a telephone exchange. It is the switchboard, but not the whole system. Its function is to receive incoming signals, make proper connections, and send the messages through to their destination. For efficient service, the body must function as a whole.
But where is the "mind" Is it in the brain Or perhaps in the nervous system After all, can we say that the mind is in any particular place It is not like the leg or even the brain. It is a function, an activity Aristotle, twenty-three hundred years ago, observed that the mind was to the body what cutting was to the ax. When the ax is not in use, there is no cutting.
If this activity is necessary for thinking, it is also necessary for carrying thought from one person to another. Observe how people go about the business of ordinary conversation. If you have never done this painstakingly
A. An automobile engine.
B. A telephone exchange.
C. Pump.
D. Mind.
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