阅读理解。
Zhang Li lies in bed sadly. The 24-year-old young man lost his right leg because of a blood disease.
The doctor said that his 10 years of smoking had caused the disease."I began to smoke when I was in
Junior 3. It made me feel like a man and I thought it looked cool. Now I know I was really wrong."
said Zhang.
It is a mistake many teenagers make. It is said that about 40 million of the country's young people
between 13 and 18 have tried smoking. Nearly 68 percent of teenager smokers smoked their first one
before the age of 13. Those who live in big cities started even earlier. Many teenagers see people smoking
in the movies. But in real life, stars like Jackie Chan think smoking is a bad thing. In fact, smoking is one
of the top killers in China. Each year one million people die from smoking-related (与吸烟有关的) diseases.
Smoking causes illnesses like lung cancer and heart disease.
Doctors say that the younger a person starts smoking, the worse it will be. If a person starts smoking
as a teenager, he or she may live twenty-two years less than non-smokers.
1. What kind of disease did smoking cause for Zhang Li?
A. Lung cancer.
B. Blood disease.
C. Heart disease.
2. From the passage, we know Zhang Li started to smoke when he was ________ years old.
A. 13
B. 14
C. 18
3. The city's young people ________.
A. knew that smoking was a bad thing
B. tried smoking when they were in Junior 3
C. started smoking earlier than those in the country
4. Which of the following is NOT TRUE according to the passage?
A. Zhang Li had a disease and lost his left leg.
B. Smoking may cause many kinds of diseases.
C. Smoking may make you have a shorter life.
5. What does the underlined word "non-smokers" mean in English?
A. People who like smoking.
B. People who smoke.
C. People who don't smoke.
▲ 。
－氨基酸，能与FeCl3发生显色反应，其分子中共有6种化学环境不同的H原子。X的结构简式为 ▲ 。