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A．He was attracted by Mrs Jones.B．He had heard a noise.C．He had run out of gas.D．His t
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In the late 1960's, many people in North America turned their attention to environmental problems, and new steel-and-glass skyscrapers were widely criticized. Ecologists pointed out that a cluster of tall buildings in a city often overburdens public transportation and parking lot capacities.
Skyscrapers are also lavish consumers and wasters of electric power. In one recent year, the addition of 17 million square feet of skyscraper office space in New York City raised the peak daily demand for electricity by 120,000 kilowatts—enough to supply the entire city of Albany, New York, for a day.
Glass-walled skyscrapers can be especially wasteful. The heat loss(or gain) through a wall of half-inch plate glass is more than ten times that through a typical masonry wall filled with insulation board. To lessen the strain on heating and air-conditioning equipment, builders of skyscrapers have begun to use double-glazed panels of glass I and reflective glasses coated with silver or gold mirror films that reduce glare as well as heat gain. However, mirror-walled skyscrapers raise the temperature of the surrounding air and affect neighboring buildings.
Skyscrapers put a severe strain on a city's sanitation(卫生) facilities, too. If fully occupied, the two(former) World Trade Center towers in New York City would alone generate 2.25 million gallons of raw sewage(污物) each year—as much as a city the size of Stamford, Connecticut, which has a population of more than 109,000. Skyscrapers also interfere with television reception, block bird flyways, and obstruct air traffic. In Boston in the late 1960's some people even feared that shadows from skyscrapers would kill the grass.
Still, people continue to build skyscrapers for all the reasons that they always have to build them—personal ambition, civic pride, and the desire of owners to have the largest possible amount of rentable space.
The main purpose of the passage is to ______.
A．To tell children how to learn to read.B．To love animals.C．To love life.D．To develop
听力原文：M: The Energy Minister announced at a press conference yesterday. the construction of three more nuclear power stations. These will form. a vital part of the government's energy plans for the next two decades and are needed to satisfy the country's growing demands for electricity. The plans were strongly criticised by opposition MP's as well as anti-nuclear and environmentalist groups.
W: They must be absolutely mad, more nuclear power stations!
M: OK. Jane. But we've got to get the energy from somewhere, haven't we？ We can't just go on using oil and coal.
W: Look. The main point is they're just net safe. They're a real menace, everyone of these things is an accident waiting to happen. Look at Chernobyl, for goodness' sake!
M: Yes, OK, I agree there's a risk. Of course there is. But it's minimal. With modern technology, nuclear reactors are much safer:
W: Much safer! You must be joking. No. Look at all that radioactive waste they're dumping into the sea and underground. Nobody re ally knows what'll happen long-terms.
M: That is a problem. Sure. But it's also true that nuclear energy is cheap and can produce electricity very quickly. Lots of countries have no alternatives. They don't have any oil, coal or anything. What are they supposed to do？
W: Oh, come on! There're lots of possibilities. Well, quite a few. We just haven't really looked at them seriously enough. There's solar energy, and wind power and, what's called wave power. We've still got a lot of coal.
W: Alright. But they'll all take time and money to develop. We need energy now and nuclear power is the best alternative.
M: Oh, I don't believe this. I reckon it's just crazy.
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听力原文： Sometimes we say that someone we know is "a square peg in a round hole". This simply means that the person we are talking about is not suited for the job he is doing. He may be a bookkeeper who really wants to be an actor or a mechanic who likes cooking. Unfortunately, many people in the world are "square pegs", they are not doing the kind of work they should be doing, for one reason or another. As a result they probably are not doing a very good job and certainly they are not happy.
Choosing the right career is very important. Most of us spend a great part of our lives at our jobs. For that reason we should try to find out what our talents are and how we can use them. We can do this through aptitude tests, interviews with specialists, and study of books in our field of interest.
There are many careers open to each of us. Perhaps we like science, then we might prepare ourselves to be chemists, physicists, or biologists. Maybe our interests take us into the business world and such work as accounting, personnel management or public relations. Many persons find their place in government service. Teaching, newspaper work, medicine, engineering—these and many other fields offer fascinating careers to persons with talent and training.
(30)
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