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.

    How to build good relationships with people from other cultures? Actually, it is important to learn some communication skill. {#blank#}1{#/blank#}.

    Learn about the culture in advance. A little knowledge can go a long way. So if you have time before going abroad or meeting with someone from another culture, try to take time to learn the basic "do's and don'ts" of that culture. {#blank#}2{#/blank#} It's very convenient.

    Be respectful and tolerant. {#blank#}3{#/blank#} Signs of these may appear when you communicate with people from other cultures. However, it is not the time to judge people based on these differences during basic communication. Instead, respect them for what they are, and tolerate them.

    Speak clearly and slowly. But do not shout at others even if they don't understand you. {#blank#}4{#/blank#} Instead, it can be seen as a rude behavior. What's more, even if there are difficulties in communicating with people from other cultures, do not treat other people as though they are stupid.

    {#blank#}5{#/blank#} In some cultures, looking another person in the eye when you speak is seen as a sign of honesty and interest. However, in other cultures, it may be disrespectful.

Do you know Machu Picchu in Peru? Maybe you never hear about it and think there is nothing great with it. But it is famous all over the world, just like the Great Wall in our country.

Machu Picchu is over 600 years old, but people found it very late, in 

1911. That's why people also call it"The Lost City of the Incas". Machu Piechu lies on the highland of a mountain, at over 2,400 metres above sea level. It is about 5 km² and has about 200 different old but great buildings. There are three areas(地区) in Machu Picchu and every one of them has different uses. The slopes(斜坡)of the mountain work as the farming areas. The lower (更低的) areas are the buildings for people to live in. The top of the mountain is for religious activities(宗教活动). From there, you can enjoy all of Machu Picchu.

▲Why did people build the city on the mountain? How did they build these fantastic buildings? Who lived there before? It may take a long time to find them out.

Welcome to Pingshan Culture Square

Have you ever thought how lonely your pet dog will be when you leave home for school or work? Don't worry! A teenager has created a helpful robot for you. 

Cassidy Matwiyoff, a student in San Diego, California, created Bowwow. It is a robot and it helps to pet(抚摸) dogs when their owners are not at home. " The robot starts to work by dropping the food. The dog walks over to eat the food. During this process, Bowwow is petting the dog. " Natwiyoff says. 

The girl got the idea after watching ABC's Shark Tank. She spent four years creating a prototype (雏形) of Bowwow with the help of her mother. After that, she went to an Engineering and Computing Capstone Design program in Chico State. She was allowed to introduce her invention to a group of engineers and teachers in the hope of getting it produced. 

One of them disapproved of the idea. " My dog would rip(撕) this to pieces, " he said. This lit(点燃) a fire within Matwiyoff. She spent the next four months doing research and testing Bowwow for dogs of different sizes and ages. 

Matwiyoff hopes to catch an investor's(投资者的) eye soon and bring her invention to the market. " One day, investors will be interested in my product and want to invest it. " she said.