Question

【题目】First it was worry about second-hand smoke, now there’s major concern over third-hand smoke which gets into hair, clothes, furniture or a car rather than directly. from a cigarette or someone breathing it out.

To be honest, I’ve always been worried about the health dangers of this even though I didn’t know it had a name. My worry made me reluctant to let smokers hold my babies even though they didn’t smoke in my house.

Tests for its effects have been only carried out on mice, but I don’t think they can be ignored. Researchers at California University last month suggested third-hand smoke (THS) could cause type2 diabetes, liver and lung damage.

They analyzed how people are affected by taking in smoke from another person’s clothing, hair, home, or car. They say they can see an impact on the brain and liver. Lead author Manucla Martins-Green said: “Our goal was to decide the smallest amount of time required to cause physiological changes in mice when they are expose(暴露) to THS.” This was done using an exposure system that is the same as human exposure.

“We found THS exposure as early as one month caused liver damage. Exposure for two months lead to further molecular(分子的)damage, and at four to six months caused even more such damage. We also found the mice showed insulin resistance (抗胰岛素) after long-term exposure.”

“THS is a hidden danger a silent killer. Pollutants can be absorbed through the skin, and through breathing.”

“Although our research was not done on humans. people should be aware that hotel rooms, cars and homes that were used by smokers are very likely to be polluted with THS.” Martins-Green believes most people don’t know they’re being exposed to THS, or don’t believe in the damage it can do.

THS toxins(不经意素) remain on surfaces for many years, and resist even strong cleaning agents.

【1】When do you suffer third-hand smoke?

A. You smoke a cigarette yourself.

B. You stay with a smoker who is smoking.

C. You sit on a sofa where a smoker smoked.

D. You smoke with another two smokers.

【2】What does the underlined word mean?

A. Unwilling.

B. Happy.

C. Thankful.

D. Angry

【3】Why should we be careful about third-hand smoke?

A. It is the most dangerous.

B. It can cause health problems.

C. It can be easily ignored.

D. It can never be cleaned.

【4】What is the best title of the passage?

A. ’Third-hand smoke is everywhere.

B. The ways to avoid third-hand smoke.

C. How to get rid of third-hand smoke.

D. Hidden health risks of third-hand smoke.

Answer 1

【答案】

【1】C

【2】A

【3】B

【4】D

【解析】本文叙述的是三手烟所隐藏的健康风险。

【1】C

推理判断题。根据第一段First it was worry about second-hand smoke, now there’s major concern over third-hand smoke which gets into hair, clothes, furniture or a car rather than directly from a cigarette or someone breathing it out.可知，你坐在吸烟者曾经吸烟的沙发上时，说明你在遭受三手烟。故选C。

【2】A

词义猜测题。根据第二段第二句My worry made me reluctant to let smokers hold my babies even though they didn’t smoke in my house. 由于这一担忧，我不愿意让吸烟者抱我的孩子，即使他们在我家不吸烟也不行。可知划线词的意思是“不情愿”，故选A。

【3】B

细节理解题。根据第三段第二句Researchers at California University last month suggested third-hand smoke (THS) could cause type 2 diabetes, liver and lung damage.可知，三手烟会引起健康问题。故选B。

【4】D

主旨大意题。根据倒数第三段 “THS is a hidden danger, a silent killer. Pollutants can be absorbed through the skin and through breathing.” 和倒数第一段THS toxins(毒素) remain on surfaces for many years, and resist even strong cleaning agents.可知，本文叙述的是三手烟所隐藏的健康风险。故选D。