In spring it is ________ hot ________ cold here.

[　　]

In autumn the weather is ______ hot ______ cold here.

[    ]

　　A. neither, nor   B. either, or   C. both, and   　　D. either, not

Different weather makes people feel different.It influences 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(州) 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 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 summer.At about 18℃, people become stronger.
　Low air pressure(气压) may make people forgetful(健忘).People leave more bags on buses and in shops on low-pressure days.People feel best at a temperature of about 18℃.
Are you feeling sad, tired, forgetful, or unhappy today? It may be the weather’s problem.
根据短文内容，从A、B、C、D四个选项中选择最恰当的答案。
【小题1】What can cause problems on health？

There are many wetlands (湿地) in China and some of them have become the world‘s important wetlands. The Chinese Yellow Sea Wetlands are among them. They are in Yancheng, Jiangsu Province. They are home for many different kinds of birds and animals. The world’s largest Milu Deer Nature Reserve(自然保护区) is in them. More than 700 milu deer live freely there. There are not many red-crowned cranes in the world, but every winter you can see some in the Red-crowned Cranes Nature Reserve in the Yellow Sea Wetlands.

　　The temperature in the wetlands is usually neither too high nor too low. There is a lot of rain and sunshine, too. They are really good places for wildlife. Offering food and home for some special kinds of animals and birds is not the only reason why we need to protect wetlands. Wetlands are important because they also prevent flood. But some people want to change the wetlands to make more space for farms and buildings. This means there will be less and less space for wildlife.

　　Luckily, more and more people are beginning to realize the important of wetlands and wildlife. Every year, on February 2^nd, many activities are held to tell people more about wetlands.

1.The Chinese Yellow Sea Wetlands are in the _______ of China.

2.Usually the weather in the wetlands is _______.

3.   The World Wetlands Day is on _______.

4.We must protect wetlands because _______.

5.The best title for the passage is _______.

One day, Allan and his friend Henry went swimming in a river. It was very hot. How happy they were in the river! After they got out of the water, they played games in the sun for a while.

　On their way back, Henry saw some flowers. He liked flowers very much and ran into the green field to look at them. Now Allan was walking by himself.

　Then he heard Henry calling out, "A snake（蛇）! Help!..."

　"What's wrong with you?" asked Allan.

　"A snake bit（咬）me in the leg. Come here!"

　Allan ran over and saw a small red wound（伤口）on Henry' s leg.

　"The snake was in the grass. I didn't see it."

　"Sit down quickly"! Allan told Henry.

　Allan put his mouth at the little red wound and began to suck（吸）at it. In this way he saved （挽救）Henry's life. "Oh, Allan, it's very kind of you to help me."

　　"That's all right. We are friends and we must always help each other."

1.It was________ when-Allan and Henry went out.

2.After swimming, they played in the sun________.

3.On their way home,________ got something wrong with his____

4.Henry and Allan are________.

5.Which of the following（下面的）is true?