大气污染（air pollution）
第1题：
Ventilation ().
A、is a system for moving fresh air
B、can cut indoor pollution to a safe level
C、can cause some diseases
D、is better done through air-conditioning
第2题：
A. calls off
B. calls for
C. calls up
D. calls on
第3题：
A. rate
B. proportion
C. extent
D. amount
第4题：
The purpose of inert gas systems aboard tank vessels is to ______.
A.allow sufficient oxygen in the tank to sustain life
B.prevent outside air from entering the tank
C.provide increase in cargo discharge pressure
D.comply with double hull pollution prevention regulations
第5题：
According to the article, which of the following statements is not true?
A．Tightly sealed house may be harmful in another aspect.
B．The house is unsealed to prevent the air from leaking.
C．The air always leaks from cracks.
D．New house is worse than old one in the aspect of indoor pollution.
第6题：
Air pollution
People and air pollution are often in the same places. This means that cities with large populations have the biggest problem of dirty air. Air pollution is caused by many different things. A major kind of air pollution is the gas from cars. Statistics(统计资料) show that 93 percent of all auto trips are within cities.
Another major kind of dirty air is the burning of coal and oil for energy. This energy is needed to make electricity. Of course, much more electricity is used in the city than in the county.
On the average, we throw away more rubbish than the year before. The burning of rubbish makes air pollution even worse. Many major industries are also responsible for the dirty air in the around cities. The fumes(烟)from iron, steel, chemical, and petrol production add particles(微粒)to the air.
The effects of air pollution range from mild headaches to death. The levels of pollution found in heavy traffic may cause headaches for loss of clear vision. Wherever coal and oil are used for fuel, fumes may kill trees and plants and cause metal to corrode(腐蚀). In some of the larger cities, these fumes endanger the lives of human beings by contributing to lung diseases and causing early death.
26. The key point of the passage is that().
A. the cause of air pollution is people
B. the causes and the effects of air pollution are both found in cities
C. the effects of air pollution range from headaches to death
27. What is the purpose of this passage?
A. to persuade people to stop polluting the air().
B. to tell the causes of air pollution
C. to tell why cities are bad places to live
28. Why is air pollution more grave in the city than in the country?().
A. Because there are larger populations in cities.
B. Because the air in the city is dirty.
C. Because there are much more gas fumes from cars and burning of coal and oil for energy in the city than in the country.
29. The fumes from coal and oil may cause metal().
A. to corrode
B. to twist
C. to turn black
30. In larger cities, the fumes from coal and oil may contribute to().
A. heart disease
B. loss of clear vision
C. lung diseases
参考答案：26、A 27、B 28、A 29、A 30、C
第7题：
Motor vehicles powered by the internal combustion engines are responsible for over 80 percent of the deadly carbon monoxide as well as the cancer-causing substances in the air. Eighty-nine percent of the vehicles on the road in Massachusetts are privately owned and are often operated with only one person in the car. If people would use public transportation instead of their cars, air pollution levels could be significantly lowered. Thirty percent of the land in downtown Boston is devoted to cars. Where there are garages, there could be gardens. Where there are highways, there should be homes and places to work and play. Studies show that people today show a greater hearing loss with age than ever before. Much of this is due to car-horns, loud engines and general traffic noise.
The cost of a personal car is high to the individual. The average person pays about $2,000 per car per year in gasoline, insurance, taxes, and maintenance. But for society as a whole, personal cars are a luxury we cannot afford. We pay in death from auto accidents, in poor health from air pollution, in loss of hearing from noise pollution, and in the destruction of our cities by the ever-increasing number of highways.
1、It is ____ that are the main cause of the air pollution in Boston.
A、vehicles in general
B、the public transportation systems
C、carbon monoxides
D、personal motor vehicles
2、The writer’s purpose in writing this article is to _____.
A、remind people of the danger of air pollution
B、warn people of the danger of accidents
C、urge people to use private cars as less as possible
D、ask the Boston government to build more homes and gardens
3、According to the last paragraph, ______.
A、the cost of personal cars is high to the individuals but not to the society
B、an average car costs about $2,000 inBoston
C、personal cars are so expensive that most people cannot afford
D、society as a whole suffers much from the ever-increasing number of cars
4、It is implied but not stated that ______.
A、garages, highways and parking areas occupy nearly one third of the total Boston downtown area.
B、because of highways, people in Boston have no more homes and places to live, work and play.
C、C garages have replaced most of the gardens in Boston
D、Boston is the most seriously polluted city in the U.S.
5、The best title for this passage is “ ______.”
A、Air Pollution in Boston
B、More Homes, More Plays for People
C、Cars Are Too Expensive
D、Public Transportation, A Solution to Air Pollution
第8题：
The air pollution exceeds most ________ levels by 10 times or more.
A acceptable
B accessible
C available
D applicable
第9题：
An energy tax would curb ordinary air pollution, limit oil imports and cut the budget _____.
[A] disposition
[B] deficit
[C] defect
[D] discrepancy
第10题：