The weather can influence(影响)intelligence(智力). For example, in a 1983 report by scientists, IQ of a group of students was very high when a very strong wind came, but after the strong wind, their IQ was 10% lower. The wind can help people have more intelligence. Very hot weather, on the other hand, can make it lower. Students in many schools of the United States often get worse on exams in the hot months of the year(July and August).
Weather also has a strong influence on people’s feelings. Winter may be a bad time for thin people. They usually feel cold during these months. They might feel unhappy during cold weather. But fat people may have a hard time in hot weather. At about 18 °C, people become stronger.
Lower air pressure may make people forgetful. People leave more bags on buses and in shops on low-pressure days. People feel best at a temperature of about 18 °C.
Are you feeling sad, tired, forgetful or unhappy today? It may be the weather’s problem.
【小题1】What can influence people’s intelligence according to the first paragraph?

The weather is getting hotter. You are thirsty playing
basketball or riding home from school. A cold drink may
be just the thing. But be careful what you are drinking.
Something that looks cool may not be good for your health.
There are plenty of "energy drinks" on the market. Most of
them have beautiful colors and cool names. The lists on
them tell you they are helpful to your health. Sounds great!
  
But after a careful check you may find that most energy drinks have lots of caffeine (咖啡因) in them. These drinks are especially aimed at young people, students, busy people and sports players. Makers sometimes say their drinks make you better at sports and can keep you awake. But be careful not to drink too much.
Caffeine makes your heart beat fast. Because of this, the International Olympic Committee has limited( 限制) its use. Caffeine in most energy drinks is at least as strong as that in a cup of coffee or tea. Possible health dangers have something to do with energy drinks. Just one box of energy drink can make you nervous, have difficulty sleeping and can even cause heart problems. Scientists say that teenagers should be discouraged from taking drinks with a lot of caffeine in them.
【小题1】Many people like drinking energy drinks because of the following EXCEPT that ________.