| 阅读理解。 |
| Do you know you could get sick just by walking past a building? The bacteria (细菌) that cause Legionnaire's disease grow very fast in large modern buildings. They are carried by air through the buildings and outside. Legionnaire's disease is only one of the illnesses that are caused by "sick buildings". Some buildings can make you ill because their heating and air-conditioning are controlled. Air from outside cannot get in through the closed windows. This indoor air pollution is a growing problem. Legionnaire's disease, which can kill, is probably the most serious result of sick buildings, but other unpleasant illnesses can appear. People who work in some buildings suffer from tiredness, feeling sick and headaches. Their offices look bright and clean, but invisible (无形的) and dangerous bacteria are in the air around them. There is an answer to the problem. The air-conditioning and heating can be tested for bacteria. Once the tests are complete, the sick building can be cured (治愈). This is expensive to do, but the results are good. "The people in the buildings no longer get sick, and everybody is happier. |
| 1. "Sick buildings" means _________. |
| A. very old buildings B. buildings that are going to fall down C. buildings for sick people D. buildings that make people feel sick |
| 2. The indoor air pollution is caused by _________. |
| A. Legionnaire's disease B. the air from outside C. lack of flesh air D. unpleasant illnesses |
| 3. We can tell that a building might be "sick" when _________. |
| A. the windows are all closed B. bacteria can be seen in the air C. the air-conditioning and heating don't work well D. people in it have got different kinds of disease |
| 4. Which of the following is TRUE? |
| A. Legionnaire's disease is only one of the results of "sick buildings". B. There is less and less indoor air pollution. C. The bacteria are. not dangerous if the offices look bright and clean. D. If the tests for bacteria are expensive, the results are good. |
| 5. The underlined (下画线的) sentence in the last paragraph means " As soon as the tests are complete, _________". |
| A. bacteria will disappear by themselves B. Legionnaire's disease won't kill people C. people in the building will no longer get sick D. something can be done to cure the sick building |