The tobacco, which is used to make cigarettes, was first grown in is now part of the United——青夏教育精英家教网—

The tobacco, which is used to make cigarettes, was first grown in _______ is now part of the United States.

A. what 　　

B. that　　　

C. all 　

D. which

阅读理解

　　People have smoked cigarettes for a long time now．The tobacco which is used to make cigarettes was first grown in what is now part of the United States．Christopher Columbus, who discovered America, saw the Indians smoking．Soon the dried leaves were transported to Europe．In the late 1800s, the Turks made cigarettes popular．

　　Cigarette smoke contains at least two harmful substances, tar and nicotine．Tar, which forms as the tobacco burns, damages the lungs and therefore affects breathing．Nicotine, which is found in the leaves, causes the heart to beat faster and increases the breathing rate．Nicotine in large can kill a person by stopping a person’s breathing muscles．Smokers usually take in small amounts that the body can quickly break down．

　　Nicotine can make new smokers feel dizzy(头晕)or sick to their stomachs．The heart rate for young smokers increases 2 to 3 beats per minute．Nicotine also lowers skin temperature and reduces blood flow in the legs and feet．It plays an important role in increasing smokers’ risk of heart disease and stroke．

　　Smoking cigarettes is dangerous．Cigarette smoking was the cause of lung cancer and several other deadly diseases．

(1)

Tobacco first appeared in _________．
[　　]
A．	Asia
B．	Africa
C．	Europe
D．	America

(2)

_________ doesn’t make one’s heart beat as usual．
[　　]
A．	Tar
B．	Nicotine
C．	Lung disease
D．	Leave

(3)

What’s the main idea of this passage?
[　　]
A．	Where did cigarettes come from?
B．	The affect of smoking on your body．
C．	How to smoke is healthy?
D．	Who is the first smoker?

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阅读理解

　　People have smoked cigarettes for a long time now．The tobacco which is used to make cigarettes was first grown in what is now part of the United States．Christopher Columbus, who discovered America, saw the Indians smoking．Soon the dried leaves were transported to Europe．In the late 1800s, the Turks made cigarettes popular．

　　Cigarette smoke contains at least two harmful substances, tar and nicotine．Tar, which forms as the tobacco burns, damages the lungs and therefore affects breathing．Nicotine, which is found in the leaves, causes the heart to beat faster and increases the breathing rate．Nicotine in large can kill a person by stopping a person’s breathing muscles．Smokers usually take in small amounts that the body can quickly break down．

　　Nicotine can make new smokers feel dizzy(头晕)or sick to their stomachs．The heart rate for young smokers increases 2 to 3 beats per minute．Nicotine also lowers skin temperature and reduces blood flow in the legs and feet．It plays an important role in increasing smokers’ risk of heart disease and stroke．

　　Smoking cigarettes is dangerous．Cigarette smoking was the cause of lung cancer and several other deadly diseases．

(1)

Tobacco first appeared in ________．
[　　]
A．	Asia
B．	Africa
C．	Europe
D．	America

(2)

________ doesn’t make one’s heart beat as usual．
[　　]
A．	Tar
B．	Nicotine
C．	Lung disease
D．	Leave

(3)

Smoking is dangerous because ________．
[　　]
A．	it makes us live longer
B．	it can waste money
C．	it can make us warm
D．	it causes lung cancer

(4)

What’s the main idea of this passage?
[　　]
A．	Where did cigarettes come from．
B．	The affect of smoking on your body．
C．	How to smoke is healthy．
D．	Who is the first smoker．

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阅读理解

　　People have smoked cigarettes for a long time now．The tobacco which is used to make cigarettes was first grown in what is now part of the United States．Christopher Columbus, who discovered America, saw the Indians smoking．Soon the dried leaves were transported to Europe．In the late 1800s, the Turks made cigarettes popular．

　　Cigarette smoke contains at least two harmful substances, tar and nicotine．Tar, which forms as the tobacco burns, damages the lungs and therefore affects breathing．Nicotine, which is found in the leaves, causes the heart to beat faster and increases the breathing rate．Nicotine in large can kill a person by stopping a person's breathing muscles．Smokers usually take in small amounts that the body can quickly break down．

　　Nicotine can make new smokers feel dizzy(头晕)or sick to their stomachs．The heart rate for young smokers increases 2 to 3 beats per minute．Nicotine also lowers skin temperature and reduces blood flow in the legs and feet．It plays an important role in increasing smokers' risk of heart disease and stroke．

　　Smoking cigarettes is dangerous．Cigarette smoking was the cause of lung cancer and several other deadly diseases．

(1)

What is the main purpose of the first paragraph?
[　　]
A．	To tell us the bad effects caused by smoking cigarettes．
B．	To introduce the history of smoking．
C．	To let us know what the cigarettes are made from．
D．	To tell the readers that Columbus found the Indians smoking．

(2)

________ doesn't make one's heart beat as usual．
[　　]
A．	Tar
B．	Nicotine
C．	Lung disease
D．	Leaves

(3)

The following effects are caused by Nicotine EXCEPT that ________．
[　　]
A．	It can make new smokers feel dizzy or sick to their stomachs
B．	It lowers skin temperature
C．	It causes the heart to beat less fast
D．	Nicotine will probably kill a person if a smoker takes in too much of it．

(4)

What's the main idea of this passage?
[　　]
A．	Where did cigarettes come from?
B．	The effect of smoking on your body．
C．	How to smoke is healthy?
D．	Who is the first smoker?

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阅读理解: 阅读下列短文, 从所给的四个选项中, 选出最佳答案。

　　 People have smoked cigarettes(香烟) for a long time now. The tobacco which is used to make cigarettes was first grown in what is now part of the United States. Christopher Columbus, who discovered America, saw the Indians smoking. Soon the dried leaves were transported (输送) to Europe where smoking began to catch on, In the late 1800s, the Turks made cigarettes popular.

　　 Cigarette smoke contains at least two harmful substances (物质), tar and nicotine. Tar, which forms as the tobacco burns, damages the lungs and therefore affects breathing. Nicotine, which is found in the leaves, causes the heart to beat faster and increases the breathing rate (速度).

　　 Smoking cigarettes is dangerous. The U. S. Public Health Service stated that cigarette smoking is the cause of lung cancer (癌) and several other deadly diseases (疾病). The U. S. government now requires that each package of cigarettes bear a special warning about the dangers of smoking.

1. A good title for this selection is _________.

[ ] 　　

A. Cigarettes in the U. S.

B. Smoking Cigarettes　　

C. How to Smoke Cigarettes　　　　　　

D. The Effect of Smoking on Your Health

2. The expression "catch on" means _______.

[ ] 　　

A. cost a lot　　 B. slow down　　

C. become popular D. understand and make use of something

3. Before Columbus discovered America, ______.

[ ]

A. Americans did not smoke cigarettes　　

B. Europeans did not smoke cigarettes　　

C. nicotine was not in tobacco　　

D. Both B and D

4. In the nineteenth century, smoking became popular because of the people in ________.

　　[ ] 　　

A. India　　 B. America　　

C. Turkey　　 D. Europe

5. Breathing is affected by ________.

[ ]

A. tar　　　　　　 B. nicotine　　

C. Both A and B D. Neither A nor B 查看习题详情和答案>>

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