Besides giving off gases and dusts into the air, humans produce waste that is poured on the environment. Often, this waste produced by major industries and people is harmful to both nature and human life.

One of the main causes of the large amount of dangerous waste is that people do not realize how large a problem it is. Because it can be simply removed and sent to a landfill（废渣填埋场）, the problem is often believed to end there. In addition, industries have often shown an unwillingness to find ways to deal with dangerous waste because of the related expenses. Many industries and governments build simple landfills to store waste, and often just pour waste chemicals into nearby bodies of water. Often, chemicals used for industrial production cause dangerous forms of waste. The amount of these chemicals has increased greatly in the past, but it is often difficult and expensive to get rid of these chemicals or to store them in a way safe to human life and the environment.

Every year, major health problems result from dangerous waste. Sadly, it is often only after someone has died or become seriously ill that governments will take measures to reduce levels of harmful waste.

Some governments have realized how serious the dangerous waste problem is and are now trying to settle this problem. They are also trying to limit the amount of waste industries are allowed to produce.

Not only governments but ordinary people as well must work together to solve the problem. They can choose not to buy those products which require the production of dangerous waste, and produce less harmful waste themselves. Many scientists think that waste production can be cut. The waste can be reduced by at least one third using existing technologies and methods.

72. What would be the best title for the text?

A. Measures of Reducing Dangerous Waste

B. Danger of Harmful Waste to Mankind

C. Dangerous Waste and Water Pollution

D. Environmental Protection

73. According to the text, people       .

A. do not produce harmful waste in their daily life

B. do not know where to place the dangerous waste

C. are not clear about how serious the dangerous waste problem is

D. are not sure about where harmful waste ends

74. What troubles industries most in dealing with the dangerous waste problem?

A. How to get government support.

B. How to increase their production.

C. How to store harmful waste.

D. How to cut down the related costs.

75. What can be inferred from the passage?

A. The polluting industries are not allowed to sell their products.

B. Present technologies have settled the harmful waste problem.

C. Everyone should obey the government rules for the problem.

D. To solve the problem requires the efforts of the whole society.

Besides giving off gases and dusts into the air, humans produce waste that is poured on the environment. Often, this waste produced by major industries and people is harmful to both nature and human life.

One of the main causes of the large amount of dangerous waste is that people do not realize how large a problem it is. Because it can be simply removed and sent to a landfill(废渣填埋场),the problem is often believed to end there. In addition, industries have often shown an unwillingness to find ways to deal with dangerous waste because of the related expenses. Many industries and governments build simple landfills to store waste, and often just pour waste chemicals into nearby bodies of water. Often, chemicals used for industrial production cause dangerous forms of waste.The amount of these chemicals has increased greatly in the past, but it is often difficult and expensive to get rid of these chemicals or to store them in a way safe to human life and the environment.

Every year, major health problems result from dangerous waste. Sadly, it is often only after someone has died or become seriously ill that governments will take measures to reduce levels of harmful waste.

Some governments have realized how serious the dangerous waste problem is and are now trying to settle this problem. They are also trying to limit the amount of waste industries are allowed to produce.

Not  only governments but ordinary people as well must work together to solve the problem. They can choose not to buy those products which require the production of dangerous waste, and produce less harmful waste themselves. Many scientists think that waste production can be cut. The waste can be reduced by at least one third using existing technologies and methods.

72. What would be the best title for the text?

A. Measures of Reducing Dangerous Waste

B. Danger of Harmful Waste to Mankind

C. Dangerous Waste and Water Pollution

D. Environmental Protection

73.According to the text, people       .

A. do not produce harmful waste in their daily life

B. do not know where to place the dangerous waste

C. are not clear about how serious the dangerous  waste problem is

D. are not sure about where harmful waste ends

74.What troubles industries most in dealing with the dangerous waste problem?

A. How to get government support.

B. How to increase their production.

C. How to store harmful waste.

D. How to cut down the related costs.

75. What can be inferred from the passage?

A. The polluting industries are not allowed to sell their products.

B. Present technologies have settled the harmful waste problem.

C. Everyone should obey the government rules for the problem.

D. To solve the problem requires the efforts of the whole society.

Besides calling 911, here is what to do in some life-threatening emergencies when no one is around to help.
Lost in the wilderness
First, you’ve got to acknowledge you're in trouble. Stay where you can be seen, clearly and remember to rest. Keeping a sense of humor helps too -- it reduces strum and helps creative thinking. In a wide open area, make a colorful cress out of rocks to show your present position.
Choking
Aim to hit the top of the chair against your stomach, in the soft part below the bony upside-down V of the ribs (肋骨). Make a sudden push against the chair. If you still can’t breathe after six tries, call 911, even if you can’t talk. Write the word “choking” somewhere nearby, and leave the line open until help arrives.
Severe bleeding
Use your hand or clean cotton, or paper towels, or a scarf, or any cloth you can find, and push down on the wound until the bleeding stops. But if you put a band around your leg tightly, you’re going to close the vessels (血管) to the entire leg. In this way, you could loose foot.
Bear attack
If yon surprise a bear, don't run away. That invites an attack. Instead, stand up and back away slowly, without looking the bear in the eyes. If it does charge (猛冲) at you, stick out your chest, raise your arms, and spread your legs. Shout at the bear, to frighten it. If it's going to attack, lie facedown, with your hands held firmly behind your neck. Play dead until you're sure the bear is gone.
1. When you see a colorful cross made of rocks in the wilderness, you know ______.
A. someone is bleeding                  B. someone is choking
C. someone is lost                      D. someone is attacked by a bear
2. If you are still choking after six tries, you should ______.
A. keep a sense of humor                 B. call 911 and leave the line open
C. use your hand our clean cotton         D. lie down with your hands behind your neck
3. Don't tie around your bleeding leg tightly, or you could ______.
A. stop bleeding  B. reduce stress   C. loose your foot      D. cause breathlessness
4. The passage is mainly teaching us how to ______.
A. survive the emergencies                      B. avoid a bear attack.  
C. deal with a choke                         D. find our way

Besides giving off gases and dusts into the air, humans produce waste that is poured on the environment. Often, this waste produced by major industries and people is harmful to both nature and human life.
One of the main causes of the large amount of dangerous waste is that people do not realize how large a problem it is. Because it can be simply removed and sent to a landfill(废渣填埋场),the problem is often believed to end there. In addition, industries have often shown an unwillingness to find ways to deal with dangerous waste because of the related expenses. Many industries and governments build simple landfills to store waste, and often just pour waste chemicals into nearby bodies of water. Often, chemicals used for industrial production cause dangerous forms of waste.The amount of these chemicals has increased greatly in the past, but it is often difficult and expensive to get rid of these chemicals or to store them in a way safe to human life and the environment.
Every year, major health problems result from dangerous waste. Sadly, it is often only after someone has died or become seriously ill that governments will take measures to reduce levels of harmful waste.
Some governments have realized how serious the dangerous waste problem is and are now trying to settle this problem. They are also trying to limit the amount of waste industries are allowed to produce.
Not only governments but ordinary people as well must work together to solve the problem. They can choose not to buy those products which require the production of dangerous waste, and produce less harmful waste themselves. Many scientists think that waste production can be cut. The waste can be reduced by at least one third using existing technologies and methods.
【小题1】What would be the best title for the text?

Besides giving off gases and dusts into the air, humans produce waste that is poured on the environment. Often, this waste produced by major industries and people is harmful to both nature and human life.
One of the main causes of the large amount of dangerous waste is that people do not realize how large a problem it is. Because it can be simply removed and sent to a landfill(废渣填埋场),the problem is often believed to end there. In addition, industries have often shown an unwillingness to find ways to deal with dangerous waste because of the related expenses. Many industries and governments build simple landfills to store waste, and often just pour waste chemicals into nearby bodies of water. Often, chemicals used for industrial production cause dangerous forms of waste. The amount of these chemicals has increased greatly in the past, but it is often difficult and expensive to get rid of these chemicals or to store them in a way safe to human life and the environment.
Every year, major health problems result from dangerous waste. Sadly, it is often only after someone has died or become seriously ill that governments will take measures to reduce levels of harmful waste.
Some governments have realized how serious the dangerous waste problem is and are now trying to settle this problem. They are also trying to limit the amount of waste industries are allowed to produce.
Not only governments but ordinary people as well must work together to solve the problem. They can choose not to buy those products which require the production of dangerous waste, and produce less harmful waste themselves. Many scientists think that waste production can be cut. The waste can be reduced by at least one third using existing technologies and methods.
【小题1】 What would be the best title for the text?