A
COMMON TYPES OF DRUGS
Cocaine
A white powdery drug obtained from the leaves of coca plant.In general, abusers may experience sleeplessness, loss of appetite,aggressive behavior,depression,illusion(幻觉） as well as high blood pressure and racing heartbeat.Repeated intakes will severely damage the immune system and result in death.
Morphine
As an extract(提取物）of opium, Morphine is widely used as a painkiller by doctors. However, it is highly addictive and abusers may experience paranoia,illusion and mental disorders.Excessive doses may cause death of breath failure.
Heroin
A highly addictive drug made from morphine. It rapidly causes addiction, damages the immune system, and causes itchy skin, reduced appetite,irregular heartbeat and blood pressure. Repeated injection at the same site causes veins to collapse.Death can occur from overdoses and diseases such as AIDS can be acquired from sharing needles.
Marijuana
Coming from the cannabis sativa plant, Marijuana goes by a variety of nicknames such as: dope, grass,pot, weed and Mary Jane. Abusers will experience hunger, increased talkativeness, mild illusion and slow reactions after consumption. Long-term abusers commonly suffer from hormonal disorder and smoking-related diseases.
Cough medicine
Commercially produced cough medicines contain varying amounts of Codeine. Small doses of codeine effectively relieve cough symptoms but abuse of Codeine can lead to addiction.Cough Medicine abusers may suffer from sleepiness, dry mouth, difficulty to urinate(排尿），light-headedness, loss of appetite and itchiness of the skin. Depression and confusion are also common side effects.
Drugs destroy lives and families and cost society dearly. Cherish your life and stay away from drugs!
1. How many drugs mentioned above can kill people?
A. 2. B. 3. C. 4. D. 5.
2. What does Morphine and Cough medicine have in common?
A. They are both deadly.
B. They may cause great depression.
C. They can be used to treat diseases.
D. They will damage our immune system.
3. What does the author intend to do with this passage?
A. To introduce to us different kinds of drugs.
B. To call on us to keep away from drugs.
C. To warn us of the great harm of drugs.
D. To tell us some stories about drugs.
【答案】1. B 2. C 3. B
【解析】
【分析】
这是一篇应用文。主要介绍了常见的毒品及其危害。
【1题详解】
细节理解题。在 Cocaine段落中提到“ damage the immune system and result in death损害免疫系统并导致死亡”；在Morphine段落中提到“ may cause death of breath failure可能导致呼吸衰竭死亡”；在Heroin段落在提到“Death can occur from overdoses and diseases死亡可能是由于过量使用而引起”，由此可知，这三种毒品均会导致死亡。故选B项。
【2题详解】
细节理解题。在Morphine段落中提到“Morphine is widely used as a painkiller by doctors吗啡被医生广泛用作止痛药”；在Cough medicine段落中提到“Small doses of codeine effectively relieve cough symptoms小剂量可待因能有效缓解咳嗽症状”，由此可知，这两种毒品均对某些疾病有效果。选项C“They can be used to treat diseases. 它们可以用来治疗疾病。”符合题意。故选C项。
【3题详解】
推理判断题。文章主要介绍了几种毒品，在文章的最后作者提到“Cherish your life and stay away from drugs! 珍惜生命，远离毒品！”就可以推断出作者的写作目的。选项B” To call on us to keep away from drugs. 呼吁我们远离毒品。符合题意故选B项。
【点睛】
