Question

【题目】Each year more than 2,500 people die and 12,600 are injured in home fires just in the United States, with direct property（财产）loss because of home fires at about $7.3 billion every year. Every day Americans experience the horror of fires, but most people don’t understand fires.

To protect yourself, it is important to learn something about home fires.

In less than 30 seconds a small flame can get completely out of control and turn into a major fire. It only takes minutes for thick black smoke to fill a house or for it to be in flames. Most deadly fires occur in the home when people are asleep. If you realize a fire, you won’t have time to take valuables because the fire spreads too quickly and the smoke is too thick. The fire uses up the oxygen you need and produces smoke and poisonous gases that kill. Breathing even small amounts of smoke and toxic gases can make you tired and sleepy, and short of breath. The smoke can cause you to be a deep sleeper before the flames reach your door. You may not wake up in time to escape.

Room temperatures in a fire can be 100 degrees at floor level and rise to 600 degrees at eye level. Breathing in this super-hot air will burn your lungs. It can melt clothes to your skin. In five minutes, a room can get so hot that everything in it starts to burn at once.

Fires are bright at first, but quickly produce black smoke and complete darkness. If you wake up to a fire you may be blinded, confused about where you are or which direction you should go and unable to find your way around the home you’ve lived in for years.

Only when we know the true nature of fires can we prepare our families and ourselves.

【1】How does the first paragraph develop?

A. By raising questions. B. By giving examples.

C. By expressing opinions. D. By listing reasons.

【2】What can we infer from the third paragraph?

A. It is necessary to escape in time.

B. It is important to find poisonous gases.

C. It is impossible to keep away from smoke.

D. It is dangerous to sleep away from the door.

【3】How does black smoke trouble us?

A. Getting us lose our ways.

B. Making our faces turn black.

C. Causing us to feel hopeless.

D. Forcing us to walk around the home.

【4】What is the passage mainly telling us?

A. Different processes of home fires.

B. Some basic knowledge of home fires.

C. Great damage of them fires in the USA.

D. Some good ways to prevent home fires.

Answer 1

【答案】

【1】B

【2】A

【3】A

【4】B

【解析】本文告诉我们，为了保护你自己，重要的是要学习一些有关家庭火灾的知识。

【1】B

推理判断题。根据第一段内容Each year more than 2,500 people die and 12,600 are injured in home fires just in the United States, with direct property（财产）loss because of home fires at about $7.3 billion every year.可知，第一段是通过例证来说明问题的。故选B。

【2】A

推理判断题。根据第四段中Breathing in this super-hot air will burn your lungs. It can melt clothes to your skin. In five minutes, a room can get so hot that everything in it starts to burn at once.可知，及时逃脱是必要的。故选A。

【3】A

推理判断题。根据倒数第二段中If you wake up to a fire you may be blinded, confused about where you are or which direction you should go and unable to find your way around the home you’ve lived in for years.可知，浓浓的黑烟是我们迷路。故选A。

【4】B

主旨大意题。根据第二段To protect yourself, it is important to learn something about home fires.可知，为了保护你自己，重要的是要学习一些有关家庭火灾的知识。故选B。