Travelling is a very good activity. When you get tired of your work or study ,and when you have free time ,you can go to a beautiful place to enjoy the beauty of  nature or other cities . You can take in fresh air, meet different people and make friends with them .It’s good for your health to do so .
But at times ,travelling is not an enjoyable thing . For example , the weather can be changeable .There may be rain when you travel .You may catch a cold or be ill while travelling .The worst thing is that the thieves may steal your money .All these may happen to a tourist .
When you go on a trip , you must get everything ready .Firstly , you must have clear information about the weather .Secondly ,ask a friend to go with you so that you can help each other .Thirdly , you must be careful everywhere and not to cause accidents . If you do this , you will surely enjoy your travel

Weather has a strong effect(影响) on people. 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 easily have heart trouble and other kinds of health problems during this month. In the Northeast and the Middle West, it is hot at some times and very cold at other times. People in those states will have heart trouble after the weather changes in February or March.
The weather can also influence intelligence. For example, in a 1983 study by scientists, the IQ scores of some college students were very high during storm, but after the storm, their scores were low. Storms can increase intelligence. Very hot weather, on the other hand, can decrease(减少) it. Students in many schools of the United States often do badly in exams in the hot months of the year(July and August).
Weather also has a strong effect on people’s feeling. Winter may be a bad time for thin people. They usually feel cold during these months. They might feel depressed during cold weather. In hot summer weather, on the other hand, fat people may feel unhappy. At about 65F, people become stronger.
Low air pressure(气压) makes people feel free, but it also increases forgetful- ness. People leave more bags and umbrellas on buses and in stores on low pressure days. There is a“perfect weather”for work and health. People feel best at a tempera- ture of about 64F with 65 percent humidity(湿度).
Are you feeling sick, sad, tired, forgetful, or very intelligent today? The weather may be the reason.
【小题1】Intelligence may be lower______.

任务型阅读Travelling is a very good activity. When you get tired of your work or study, and when you have free time, you can go to a beautiful place to enjoy the beauty of nature or other cities. You can breathe fresh air, meet different people and make friends with them. It’s good for your health to do so.

But sometimes, travelling is not an enjoyable thing. For example, the weather can be changeable. There may rain when you travel. You may catch a cold or be ill while travelling. The worst thing is that the thieves may steal(偷) your money. All these may happen to a tourist.

When you go on a trip, you must get everything ready. Firstly, you must have clear information about the weather. Secondly, ask a friend to go with you so that you can help each other. Thirdly, you must be careful everywhere and try not to cause accidents. If you do this, you will surely enjoy your travel.

The air pollution was so bad in Harbin, in China, on October 21,2013 that the city had to close roads and schools, and cancel* hundreds of flights from its airport.

News reports said the smog (a mixture of smoke and fog) was so thick that people couldn’t see more than 10 or 20 metres in front of them.

It is also said that people could not even see the person standing next to them. The city’s website said: “You can’t see your own fingers in front of you.”

The local people said there was a “burning” smell in the air. Many people covered their noses and mouths with scarves or masks*.

The pollution was caused on several factors* including: farmers burning off old corn stalks* and crop stubble*; coal*-fired heating systems; and low winds that allowed the smoke to remain over the city.

The smog had been building up for several days. It became worse when the city turned on the public heating system, which uses coal to heat millions of homes and offices in the city.

Harbin has a population of more than 10 million people. It lies in northeastern China, where cold winter weather can last up to six months. The main fuel* there is coal, because it is cheaper than other types of fuel.

Air pollution from burning coal can cause health problems like heart disease. During the smog crisis* in Harbin, the number of people taken to the hospital with breathing problems was 30% higher than usual.

The city government is trying to reduce its use of coal by adding more insulation* and better roofs and windows to buildings to reduce heating needs. It has also used cleaner fuel for cars and factories.

1.The roads and schools in Harbin had to be closed on October 21, 2013 because of  ____

A. the heavy rain   B. the strong wind  C. the serious smog  D.  the terrible snow        

2.There are many reasons for the air pollution EXCEPT____________.

A. farmers burn off old corn stalks and crop stubble                   

B. people use coal to heat millions of homes and offices

C. The smoke remains over the city   because of low winds

D. Many buses and cars use cleaner fuel and so do factories.

3. What is the government trying to do when the air pollution get worse?

A. To offer cars new fuel.                          

B. To give people more masks.

C. To reduce its use of coal.               

D. To ask people to stay at home.

4.What does the passage mainly tell us?

A. The serious air pollution in China   

B. Coal-fired heating systems

C. The population crisis in Harbin      

D. The reasons for heart disease

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。

1.What can cause problems on health？

A.Hot and wet weather   B.A strong wind

C.Warm weather   D.Low air pressure

2.A report shows that people may have more intelligence when ______ comes.

A.rain      B.a strong wind       C.very hot weather      D.low air pressure

3.According to(根据) the writer, fat people may feel bad in ______ weather.

A.cold      B.cool        C.warm         D.hot

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 behaviour

C.IQ changes when weather changes

D.people feel good on low pressure days

5.Which is the best title(标题) for this passage？

A.Hot Weather Causes Health Problems

B.Different Weather Makes People Feel Bad

C.Weather Influences Feelings

D.Weather Influences Health, Intelligence and Feelings