The Changjiang River is the ________ river in Chine.

1. A.
   longer
2. B.
   longest
3. C.
   longgest
4. D.
   longger

[　　]

Different weather makes people feel different. It influences (影响) health, intelligence (智力) and feelings.

In August, it is very hot and wet in the southern part of the United States. People there have heart trouble and other kinds of health problems during this month. In the Northeast and the Middle West, it is very hot at some times and very cold at other times. People in these states have more heart trouble after the weather changes in February or March.

The weather can also influence intelligence. For example, in a 1983 report by scientists, IQ (智商) of a group students were very high when a very strong wind came, but after the strong wind, their IQ was 10% below. The wind can help people have more intelligence. Very hot weather, on the other hand (另一方面), 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 summer. At about 18C, people become stronger.

Low air pressure (气压) may make people forgetful. People leave more bags on buses and in shops on low-pressure days. There is a “good weather” for work and health. People feel best at a temperature of about 18 centigrade (摄氏度).

Are you feeling sad, tired, forgetful, or unhappy today? It may be the weather’s problem.

1.People may have more intelligence when _____ comes.

　 A. a rain   B. very hot weather

C. a strong wind  D. low air pressure

2.Low air pressure may make people _______.

　 A. forgetful   B. sad  C. angry  D. tired

3.In “good weather” of 18 centigrade, _______.

A. people are very forgetful

B. people can’t do their work well

C. thin people feel cold

D. people are in better health

4.The writer wants to tell us that _______.

A. hot and cold weather influences all people in the same way

B. weather influences people’s lives

C. IQ never changes during weather changes

D. There is a good kind of weather for people’s work and health

Do you play a musical instrument? If so, you may be getting smarter. A recent study shows that taking music lessons can raise a person’s IQ.
Scientists studied 132 children in Canadian schools. At the beginning of the school year, these children took an IQ test. Then they were divided into four groups. One group took singing lessons. Another group took weekly piano lessons. The third group took classes in drams(戏剧). And the last group did no special activities at all.
At the end of the school year, the 132 children took an IQ test again. In all four groups, the average score went up. However, the piano players’IQs went up 7.0 points on average. The average increase for the other three groups was only 4.3 points.
The researchers say that the difference is small and it may not result in better grades for the piano players. However, they still consider the results important. Learning an instrument helps kids becomes better at concentrating and at memorizing things. Therefore, the researchers say, it may be good for brain development in young people.
If you have a chance to learn to play a musical instrument, never miss it. Remember it can make you smarter.
【小题1】 Which of the following is NOT true of the study?