With alarming regularity, we read about oil tankers having accidents near land and the terrible consequences of the oil spills(泄露) on people, nature, and the environment．

Millions of dollars have been used in developing special chemicals to help dismiss the spills and to clean up the animals, beaches, and land spoiled by the oil．Unfortunately, when many of these chemicals are used, more damage is caused to the environment, especially to lives in the sea．

Of all today's environmental disasters, an oil spill may actually be one of the least serious．Although oil is poisonous, it is a natural material．In the end, it breaks down naturally．There are, of course, long-term effects, but it is usually more serious in the short term．

Nature by itself works better than chemical materials, but when there is a spill, we demand that governments act immediately with as much hi-tech knowledge as possible．In 1967 the tanker Torrey Canyon sank off the Scilly Isles n ear the coast of England and spilled 120,000 tons of oil into the ocean．If you go there today, you will find it hard to see any sign that it ever happened．

Governments seem to accept the risk of transporting millions of tons of oil by ship every day so that we can fill up our cars and drive around and cause even more environmental damage．Interestingly, the biggest companies in the world produce cars, and the next biggest supply the gasoline to make them run.

We should be thinking more about reducing our dependency on oil．Governments should be encouraging research into new technologies, such as cars run by solar power, electricity, hydrogen, and so on．Much of this research has, in the past, been held back by the oil, gas, and coal．

If the world's millions of cars were 10% more efficient —and the industry could easily produce cars at least twice as efficient, we would need many fewer tankers crossing the oceans each year．If this happened, the risks of oil spills would be reduced, and the air we breathe would be cleaner and fresher, too．

What is the passage mainly talking about?

A. Oil spills pollution．                        B. What oil pollution is．

C. Oil tanker accidents.                   D. How to reduce oil pollution.

How does the author support the idea that oil spills are not as serious as people

believe?

A. By giving a description．                 B. By making an argument．

C. By giving an example．                 D. By drawing a diagram．

What does the underlined word "risk" in Paragraph 5 refer to?

A. Transportation depending more on oil．

B. Poisonous oil breaking down naturally．

C. Millions of tons of oil spilling into the sea．

D. More environmental damage being caused．

Which suggestion is made for reducing oil tank accidents according to the passage?

A. We should build safer tankers in the near future．

B. We should develop new technologies to cut oil use．

C. Tankers should not be allowed to sail near the coastlines．

D. Countries should build more oil pipelines under the sea．

One of the world's richest men has taken a close interest in one of man’s most basic functions: visiting the toilet．Bill Gates’s charitable organization, the Bill and Melinda Gates Foundation, is looking for inventors to design the loo of the future, which, they hope, would improve sanitation for millions of people around the world．
So, what's wrong with the traditional flush toilet? Firstly, it wastes a huge amount of potential drinking water．Secondly, they are more likely to cause pollution．This is a real problem in many areas of the developing world, where, according to United Nations estimates, unsafe sanitation causes half of all hospitalizations．Younger people are particularly at risk．Illnesses which cause diarrhea are responsible for the deaths of about 1.5 million children a year．Finally, standard lavatories simply aren’t practical in remote areas．
The challenge set by Bill Gates was to come up with a latrine which works without running water, electricity or aseptic tank(化粪池)．It also needed to operate for less than 5 cents．28 designs were displayed at the recent Reinvent the Toilet Fair in Seattle, USA．Among them was one which turned human waste into electricity using microwaves, another which converted human waste into charcoal, and yet another which used urine for flushing．
But the winner was a solar-powered design which generated hydrogen gas and electricity.The team from the California Institute of Technology（CIT）picked up a prize of $ 100,000.
But clearly Bill Gates doesn’t feel he’s flushing money down the toilet．After the Seattle event he said, “We, couldn’t be happier with the response we’ve gotten,” Gates has even pledged $370m more to the future toilet project．They hope to field test more prototypes over the next three years．
【小题1】Why is Bill Gates paying people to invent new toilets?

One of the world's richest men has taken a close interest in one of man’s most basic functions: visiting the toilet．Bill Gates’s charitable organization, the Bill and Melinda Gates Foundation, is looking for inventors to design the loo of the future, which, they hope, would improve sanitation for millions of people around the world．

So, what's wrong with the traditional flush toilet? Firstly, it wastes a huge amount of potential drinking water．Secondly, they are more likely to cause pollution．This is a real problem in many areas of the developing world, where, according to United Nations estimates, unsafe sanitation causes half of all hospitalizations．Younger people are particularly at risk．Illnesses which cause diarrhea are responsible for the deaths of about 1.5 million children a year．Finally, standard lavatories simply aren’t practical in remote areas．

The challenge set by Bill Gates was to come up with a latrine which works without running water, electricity or aseptic tank(化粪池)．It also needed to operate for less than 5 cents．28 designs were displayed at the recent Reinvent the Toilet Fair in Seattle, USA．Among them was one which turned human waste into electricity using microwaves, another which converted human waste into charcoal, and yet another which used urine for flushing．

But the winner was a solar-powered design which generated hydrogen gas and electricity.The team from the California Institute of Technology（CIT）picked up a prize of $ 100,000.

But clearly Bill Gates doesn’t feel he’s flushing money down the toilet．After the Seattle event he said, “We, couldn’t be happier with the response we’ve gotten,” Gates has even pledged $370m more to the future toilet project．They hope to field test more prototypes over the next three years．

1.Why is Bill Gates paying people to invent new toilets?

A．Because he wants to test people’s sense of creativity．

B．Because he wants to improve sanitation for many people．

C．Because he thinks the traditional ones are out of fashion．

D．Because he can’t design this kind of things himself．

2.Which of the following is NOT a problem with the traditional flush toilet?

A．They waste too much water．

B．They might cause diseases．

C．They are not always practical．

D．They are too complicated to use.

3.The underlined word “latrine” in the third paragraph might have similar meanings to the word “__ ”n the text．

A．Loo              B．sanitation          C．diarrhea          D．prototype

4.The team from CIT won the prize because their design        .

A．can change human waste into electricity

B．can turn human waste into charcoal

C．can produce power with solar energy

D．can use urine for flushing

5.If someone “flush money down the toilet”, they are       .

A．showing off their wealth

B．being angry with their work onditions

C．wasting money for nothing

D．expressing their great determination