Now we’re always hearing about road accident, and when we’re in a car we try to drive carefully, but how many of us take the same degree of care in our homes? Any large hospital will tell you the number of the accidents that happen in the home is almost the same as those on the road.

One of the commonest and most dangerous causes of home accidents is wrong and careless use of electrical equipment. People will continue to use a loose plug or pull out a plug without first turning off the power. In spite of warnings, one will carry an electric heater into the bathroom when he is going to have a bath. Sometimes one forgets to cut off the power before mending a lamp or something else. All this will cause accidents. So the rule about anything that work by electricity is：Switch off before you touch anything and don’t pretend you know when you actually don’t.

If you’ve got children in the house, it's always best to keep medicines of any kind out of their reach. Otherwise, they may be taken for candies or a new kind of drink. When there are older people living with you, you have to take particular care in a number of ways in order to make them safe and happy.

Fire, of course, is always a risk. So, remember not to dry clothes in front of fires, or leave stoves in the middle of rooms where they can easily be knocked over. And don’t forget to keep the children away from fire. Smoking, too, may cause fire. So you’d better give it up. Safety first may mean a little more time and care, but it may save you a lot of trouble.

1.According to the writer, we try to drive carefully in a car while __________.

2.We can learn from the text that __________.

3.It can be inferred in the text that our life at home will be much safer if __________.

4.The main purpose of writing the text is __________.

Passage Eighteen (Strictly Ban smoking)
If you smoke and you still don’t believe that there’s a definite link between smoking and bronchial troubles, heart disease and lung cancer, then you are certainly deceiving yourself. No one will accuse you of hypocrisy. Let us just say that you are suffering from a bad case of wishful thinking. This needn’t make you too uncomfortable because you are in good company. Whenever the subject of smoking and health is raised, the governments of most countries hear no evil, see no evil and smell no evil. Admittedly, a few governments have taken timid measures. In Britain for instance, cigarette advertising has been banned on television. The conscience of the nation is appeased, while the population continues to puff its way to smoky, cancerous death.
You don’t have to look very far to find out why the official reactions to medical findings have been so lukewarm. The answer is simply money. Tobacco is a wonderful commodity to tax. It’s almost like a tax on our daily bread. In tax revenue alone, the government of Britain collects enough from smokers to pay for its entire educational facilities. So while the authorities point out ever so discreetly that smoking may, conceivable, be harmful, it doesn’t do to shout too loudly about it.
This is surely the most short-sighted policy you could imagine. While money is eagerly collected in vast sums with one hand, it is paid out in increasingly vaster sums with the other. Enormous amounts are spent on cancer research and on efforts to cure people suffering from the disease. Countless valuable lives are lost. In the long run, there is no doubt that everybody would be much better-off if smoking were banned altogether.
Of course, we are not ready for such a drastic action. But if the governments of the world were honestly concerned about the welfare of their peoples, you’d think they’d conduct aggressive anti-smoking campaigns. Far from it! The tobacco industry is allowed to spend staggering sums on advertising. Its advertising is as insidious as it is dishonest. We are never shown pictures of real smokers coughing up their lungs early in the morning. That would never do. The advertisement always depict virile, clean-shaven young men. They suggest it is manly to smoke, even positively healthy! Smoking is associated with the great open-air life, with beautiful girls, true love and togetherness. What utter nonsense!
For a start, governments could begin by banning all cigarette and tobacco advertising and should then conduct anti-smoking advertising campaigns of their own. Smoking should be banned in all public places like theatres, cinemas and restaurants. Great efforts should be made to inform young people especially of the dire consequences of taking up the habit. A horrific warning – say, a picture of a death’s head – should be included in every packet of cigarettes that is sold. As individuals, we are certainly weak, but if governments acted honestly and courageously, they could protect us from ourselves.
1.Why do a few governments take timid measures toward smoking?
A.because they are afraid of people.
B.Because diseases cost a lot.
C.Because they are afraid of the cutting down of their revenue.
D.Because they are afraid of manufacturers.
2.The tone of this passage is
A.critical.
B.ironical.
C.distaste.
D.amusing.
3.What does the sentence “because you are in good company” mean?
A.you are backed by the government.
B.You are not alone.
C.You have good colleagues.
D.Governments are blind to evils of smoking too.
4.What is the best title of this passage?
A.World Governments should conduct serious campaigns against smoking.
B.World governments take timid measures against smoking.
C.smoking is the most important source of income to many countries.
D.tobacco industry spends a large sum of money on medical research.

Strictly Ban smoking

       If you smoke and you still don’t believe that there’s a definite（一定的）link between smoking and bronchial（支气管的）troubles, heart disease and lung cancer, then you are certainly deceiving yourself. No one will accuse you of hypocrisy. Let us just say that you are suffering from a bad case of wishful thinking. This needn’t make you too uncomfortable because you are in good company. Whenever the subject of smoking and health is raised, the governments of most countries hear no evil, see no evil and smell no evil. Admittedly, a few governments have taken timid measures. In Britain for instance, cigarette advertising has been banned on television. The conscience of the nation is appeased, while the population continues to puff its way to smoky, cancerous death.

       You don’t have to look very far to find out why the official reactions to medical findings have been so lukewarm. The answer is simply money. Tobacco is a wonderful commodity to tax. It’s almost like a tax on our daily bread. In tax revenue alone, the government of Britain collects enough from smokers to pay for its entire educational facilities. So while the authorities point out ever so discreetly that smoking may, conceivable, be harmful, it doesn’t do to shout too loudly about it.

       This is surely the most short-sighted policy you could imagine. While money is eagerly collected in vast sums with one hand, it is paid out in increasingly vaster sums with the other. Enormous amounts are spent on cancer research and on efforts to cure people suffering from the disease. Countless valuable lives are lost. In the long run, there is no doubt that everybody would be much better-off if smoking were banned altogether.

       Of course, we are not ready for such a drastic action. But if the governments of the world were honestly concerned about the welfare of their peoples, you’d think they’d conduct aggressive anti-smoking campaigns. Far from it! The tobacco industry is allowed to spend staggering sums on advertising. Its advertising is as insidious as it is dishonest. We are never shown pictures of real smokers coughing up their lungs early in the morning. That would never do. The advertisement always depict virile, clean-shaven young men. They suggest it is manly to smoke, even positively healthy! Smoking is associated with the great open-air life, with beautiful girls, true love and togetherness. What utter nonsense!

       For a start, governments could begin by banning all cigarette and tobacco advertising and should then conduct anti-smoking advertising campaigns of their own. Smoking should be banned in all public places like theatres, cinemas and restaurants. Great efforts should be made to inform young people especially of the dire consequences of taking up the habit. A horrific warning – say, a picture of a death’s head – should be included in every packet of cigarettes that is sold. As individuals, we are certainly weak, but if governments acted honestly and courageously, they could protect us from ourselves.

Why do a few governments take timid measures toward smoking?

A because they are afraid of people.  B Because diseases cost a lot.

C Because they are afraid of the cutting down of their revenue.

D Because they are afraid of manufacturers.

The tone of this passage is________________.

A critical.  B ironical（讽刺的用反语的）.  C distaste（不喜欢）.    D amusing.

What does the sentence “because you are in good company” mean?

A you are backed by the government. B You are not alone.

C You have good colleagues.       D Governments are blind to evils of smoking too.

What is the best title of this passage?

A World Governments should conduct serious campaigns against smoking.

B World governments take timid measures against smoking.

C smoking is the most important source of income to many countries.

D tobacco industry spends a large sum of money on medical research.

One genetic mutation(基因突变)occurs on average for every 15 cigarettes that a typical lung-cancer patient smokes, according to a study that has found for the first time all of the mutations happen during the lifetime of a cancer patient.
Scientists have completed a full genetic examinations of the genomes（基因组） of cancer patients, and hope the information will lead to a basic understanding of the causes of cancer—and possibly drugs and treatments—by making out the mutations that turn a healthy cell into a cancerous tumor cell.
They studied a lung-cancer patient who had about 23,000 DNA mutations in his lung cells that were connected with exposure(暴露) to the toxins found in cigarette smoke and had built up over his lifetime.
They also looked at a patient with malignant melanoma(恶性黑色肿瘤), the most dangerous form of skin cancer, who had got 30,000 special mutations known to be connected with exposure to sunlight.
Scientists believe this new finding into the genetics of cancer will finally lead to new drugs and perfect treatments that aim at the specific changes to the gene that cause the disease, as well as new techniques for discovering following cancers that have escaped from treatment in other parts of the body.
“For the first time, we have a complete map of all mutations in a cancer cell,” said Dr. Peter Campbell, who led the Cancer Genome project to work out the whole DNA system of tumor cells in order find the mutations.
A similar method was performed on the cells of a patient with skin cancer, which is how the researchers were able to show that the malignant skin cells contained changes that resulted from exposure to light.
“These are the two main cancers in the developed world for which we know the chief exposure. For lung cancer it is cigarette smoke, and for malignant melanoma it is exposure to sunlight,” Professor Campbell said.
【小题1】What can the genetic examination of the genomes of cancer patients be used for?

Now we’re always hearing about road accident, and when we’re in a car we try to drive carefully, but how many of us take the same degree of care in our homes? Any large hospital will tell you the number of the accidents that happen in the home is almost the same as those on the road.
One of the commonest and most dangerous causes of home accidents is wrong and careless use of electrical equipment. People will continue to use a loose plug or pull out a plug without first turning off the power. In spite of warnings, one will carry an electric heater into the bathroom when he is going to have a bath. Sometimes one forgets to cut off the power before mending a lamp or something else. All this will cause accidents. So the rule about anything that work by electricity is：Switch off before you touch anything and don’t pretend you know when you actually don’t.
If you’ve got children in the house, it's always best to keep medicines of any kind out of their reach. Otherwise, they may be taken for candies or a new kind of drink. When there are older people living with you, you have to take particular care in a number of ways in order to make them safe and happy.
Fire, of course, is always a risk. So, remember not to dry clothes in front of fires, or leave stoves in the middle of rooms where they can easily be knocked over. And don’t forget to keep the children away from fire. Smoking, too, may cause fire. So you’d better give it up. Safety first may mean a little more time and care, but it may save you a lot of trouble.
【小题1】According to the writer, we try to drive carefully in a car while __________.