Students Begin to Smoke at a Younger Age
SHANGHAI---- Almost one in four students aged between 12 and 14 have tried smoking, according to the results of a survey from the CATC(中国抗癌协会).
“ Quite a number of boy students in my class smoke outside the school yard during lunch break,” said Li Xiaolan, an English teacher from a high school in Shanghai.
The survey also found that 39 percent of students took their first cigarette from their classmates.
“ It was quite common to smoke with my classmates at school,”said Zhou Guangrong,a 22- year–old university student from Guiyang, Guizhou province,who started smoking at the age of 12.
Most of the student smokers buy cigarettes themselves.” My middle and high schools were surrounded by cigarette shops when I was a student,” said Liu Minghui who used to smoke two cigarettes per day in primary school and two packs per week in middle and high school.
“ We’re keen to show that more teenagers are starting smoking much younger than before,and that we need to minimize(降低) the number of young smokers,” said Duan Jiali, an officer in CATC. He added that teachers and parents should set a good example for teenagers by not smoking in front of them at school or at home, which is the best way of stopping teenagers from smoking.
【小题1】According to the survey,in a middle school if a class has 40 students, about _____ smoke.

American doctors say that mothers who smoke cigarettes before their babies are born may slow the growth of their babies’ lungs. They say that reduced lung growth could cause the babies to suffer breathing problems and lung disease later in life. Doctors in Boston, Massachusetts studied 1,000 children. The mothers of some of the children smoked, the other mothers did not. Doctors found that the lungs of the children whose mothers smoked were 8% less developed than the lungs of the children whose mothers did not smoke, and that the children whose mothers smoked developed 20% more cold and breathing diseases than other children later in life.

    Another recent study found that children had a greater chance of developing lung cancer if their mothers smoked. The study also showed that the danger of lung cancer increased only for sons and not for daughters, and that the father’s smoking did not affect(影响) a child’s chance of developing lung cancer.

1. Who will most probably suffer from lung cancer?

     A. A girl whose mother smoked before she was born. 

 B. A boy whose mother smoked before he was born.

   C. A girl whose father smokes.

 D. A boy whose father smokes.

2. Which of the following is true?
   A. The children whose mother smokes get more chances to catch a cold than others.

   B. All the children’s lungs are developed equally.

     C. When the mother who smokes gave birth to her baby, it already had a certain kind of breathing disease.

   D. Girls will probably suffer more than boys.

3. The main idea of the test is that ____________.

     A. mothers’ smoking affects their children most

     B. in order to keep children healthy, mothers had better not smoke

     C. fathers’ smoking affects their children most

     D. if mothers smoke, the danger of lung cancer increased only for sons and not for daughters

4. From this passage we can see that _______________.

     A. a mother may have strong influences on her baby  

     B. smoking will do harm to not only the adults but also the children

     C. girls won’t suffer from cold problems

     D. both A and B

　　Thus, if we want to be honest, we can not say,“the stars are shining tonight.”We have to say,“The stars look pretty. They were shining four years ago but their light has only just reached the earth.”

　　阅读短文，选择最佳答案．

(1) The speed of light is ________ than the speed of sound.

A．a million times slower

B．about millions of times faster

C．about a million times faster

A．you can hear the gun before you see the smoke

B．sound doesn't travel as fast as light

C．the sound of gun will reach you before the man fires his gun

A．has to travel a greater distance

B．moves less quickly

C．is less powerful

(4) The scientific way of saying“the star are shining tonight”should be ________.

A．the stars have been shining all the time

B．the stars seen tonight will be shining four years later

C．the stars were shining long ago but are seen tonight