问题补充：
Do you always understand the instructions on a bottle of medicine? Here’s one for John. John is twelve years old. He had a bad cold and coughed(咳嗽) day and night. He went to see a doctor and was given some cough medicine. Please read the following instructions and if you can understand them.
Cough Medicine:
The medicine is for a person with a cough. Shake it well before use.
Take it three times each day before meals or before sleep.
Dose (药量):
Age: over 14 2 teaspoonfuls
8~13 1 teaspoonful
4~7 1/2 teaspoonful
Dot fit for children below the age of three or old persons with heart trouble. Put it in a cold place. Use it before December 1st, .
【小题1】John should take a day.A．2 teaspoonfulsB．3 teaspoonfulsC．4 teaspoonfulsD．1 teaspoonful【小题2】John should before he takes it.A．shake the medicine wellB．eat nothingC．do some exercisesD．drink a cup of tea【小题3】When people are years old, they cannot take this medicine.A．eightyB．thirtyC．twoD．twelveB
答案：
(答案→)B
解析：
【小题1】细节理解题，有文中语句“take it three times each day before meals or before sleep.和8~131 teaspoonful”可知。
【小题2】细节理解题，有文中语句“The medicine is for a person with a cough. Shake it well before use.”可知。
【小题3】细节理解题，有文中语句“Dot fit for children below the age of three or old persons with heart trouble.”可知。
