20.Why do people smoke?One reason is that people become addicted(成癮) to cigarettes.The addictive substance(物質(zhì))in cigarettes is nicotine(尼古。甒hen people smoke,the nicotine goes right into the blood stream and makes people feel comfortable.A smoker's body gets used to the nicotine,and if he stops smoking,he feels nervous. some people smoking becomes part of certain social rituals (禮儀),for example,sending the cigarette after dinner.Many people enjoy smoking because it gives them something to do with their hands.Reaching for a cigarette,lighting it and flicking (彈掉) the ashes are special comfort in a situation where they feel nervous.
Many people also like the taste of tar (焦油) in cigarettes.However,it is the tar that causes cancer.While governments and health experts have tried to get people to give up smoking completely,cigarette manufacturers (生產(chǎn)商) have tried to keep selling them by producing cigarettes with less tar.Many people in western countries have welcomed these cigarettes since they found it hard to stop smoking and wanted to reduce the danger to their health.

62.According to the passage,what gets people into the habit of smoking?B
A.The cigarette.B.Nicotine.C.Tar.D.Blood.
63.What do the underlined words"to do so"mean?A
A.They means"to stop smoking".
B.They means"to make people feel comfortable".
C.They means"to get used to the nicotine".
D.They means"to become addicted to cigarettes".
64.Why do people welcome low-tar cigarettes?C
A.Because they taste better.B.Because they are cheaper.
C.Because they are less harmful.D.Because they are easy to be made.
65.Which of the following sentences is TRUE,according to the passage?B
A.Smokers continue smoking because smoking is very interesting.
B.Tar in cigarettes causes cancer.
C.In order to look cool,many people enjoy smoking.
D.Many people in western countries welcome the cigarettes with more tar.

分析 人們?yōu)槭裁匆鼰熌兀恳粋原因是人們對香煙里的尼古丁上癮.另一個原因是,人們只是喜歡吸煙.吸煙對許多人而言意味著休息.對一些人來說,吸煙已經(jīng)成為某些社會禮儀的一部分.但是,有些人還沒有意識到吸煙的危害.西方國家的人開始吸低焦油的香煙.

解答 62.答案:B.細(xì)節(jié)理解題,根據(jù)The addictive substance(物質(zhì))in cigarettes is nicotine(尼古。甒hen people smoke,the nicotine goes right into the blood stream and makes people feel comfortable.A smoker's body gets used to the nicotine,and if he stops smoking,he feels nervous.可知:尼古丁讓人們養(yǎng)成吸煙的習(xí)慣.故選:B.
63.答案:A.語義理解題,根據(jù)Many smokers try to stop smoking but because of the addiction to nicotine they feel so uncomfortable that they often find it too difficult to do so.可知:許多吸煙者嘗試戒煙但由于對尼古丁上癮,他們覺得非常不舒服,他們往往會發(fā)現(xiàn)它太難做.由此可以推斷出:to do so指代"to stop smoking",故選:A.
64.答案:C.細(xì)節(jié)理解題,根據(jù)Many people in western countries have welcomed these cigarettes since they found it hard to stop smoking and wanted to reduce the danger to their health.可知:西方國家很多人都?xì)g迎這些香煙,因為他們發(fā)現(xiàn)很難戒煙,想要減少危害健康.由此推斷出:他們只能抽低焦油的煙.故選:C.
65.答案:B.推理判斷題,根據(jù)it is the tar that causes cancer.可知:焦油會引起癌癥.故選:B.

點評 首先通讀全文,了解文章大意,然后弄清題干意思,對照短文信息確定正確答案.

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