Do some colours makes you feel calm while others give you energy? Scientists have studied the connection between colour and mood(心情) for a long time. Many believe that colour can influence our moods.

    Warm, bright colours such as yellow and red are positive colours. They can give people a pleasant feeling. Cool colours such as blue, purple, and green are relaxing colours. They help people experience calm feelings.

    Many public places are decorated(装饰) with certain colours in order to create certain moods. Orange makes people feel hungry, and many restaurants are painted in this colour.

    People use colour in their homes to create moods as well. Blue is a peaceful colour. It helps you rest, so it is a very good colour for a bedroom.

    Colours can also create bad moods. Some types of blue make people feel sad. Red can make people feel angry.

    What is your mood right now? Now look at the colour of the walls round you. Does it match your mood?

    California is one of the richest states in America．It has a large amount of land．And it also has more people than any other states．It has plenty of natural resources （资源），too．

    But everything （A）_______ not perfect there．California has two major problems：earthquakes and forest fires．

    The San Andreas Fault runs through California．（B）As a result of it，the state gets many earthquakes．（C） 其中一些地震非常强烈 For example，there was a strong earthquake in San Francisco in 1906．It destroyed many buildings．And it started a large number of fires．（D）More than 3，000 people died after it ． There have also been many other strong earthquakes．Some people fear that the"big （E）one"will hit someday．They think an earthquake will cause a huge amount of damage （破坏）．

    During summer and autumn，much of California is dry．So forest fires，or wildfires，often start．Those fires can spread （F）rapidly ． They burn many forest．But they can also burn people's homes and buildings．They often kill people．（G）_______ firefighters can put them out．

    We eat food with the help of hands every day. It is possible for some germs(细菌) to get into our bodies. So it is important to know how to wash hands in the right way.

    A piece of news from CCTV says that students from Guangzhou have a good way of learning how to wash hands. They learn it through doing hands-washing exercises during the ①break. The teachers there say most students wouldn't like to listen but they like to act. So now the students are interested in the interesting exercises. They are learning carefully. ②They want to be teachers for their parents and friends after they learn them well.

    Here are a few ways to motivate(激发)children to do chores.

    {#blank#}1{#/blank#}.Children always watch their parents and learn how to act from them, so the parents must set a good example and take chores seriously. This motivates children to do chores，too.

    Decide what kinds of chores children do. For younger children，give them easy work，like putting away their toys.{#blank#}2{#/blank#}.

    Tell children about the importance of doing chores.{#blank#}3{#/blank#}.Knowing the importance of the chores helps to motivate children to do them.

    {#blank#}4{#/blank#}.When children finish the chores on the list，parents can reward(奖励）them by giving them a prize. A chore list also gives children a sense of pride(自豪感）when they finish all their chores.

    Give children some money to do more chores.{#blank#}5{#/blank#}.But it is not the best way. It's best to make children feel that doing chores is the work that they should do.

    The Internet is shaping our lives. We already have online shopping services and mobile payment. However, this is just a start. The world's leading tech companies are planning to build smarter online communities. {#blank#}1{#/blank#} It was held in Wuzhen, Zhejiang last year. The development of artificial intelligence(AI,人工智能) was a hot topic at the conference(会议). If a machine can learn and solve problems as humans do, it can be called AI.

    The company Alibaba uses AI technology in its unmanned supermarket in Wuzhen. There is no salesperson in the supermarket, just a tablet on a desk that says "please smile". {#blank#}2{#/blank#} The bigger your smile is, the more discounts(折扣) you will get. Payment is done automatically(自动地) through your Alipay(支付宝)account. When you first enter the supermarket, the supermarket's AI recognizes your face and your account.

    There is also AI that can read lips. {#blank#}3{#/blank#} It recognizes your mouth, s movements and turns them into voices or text messages. This could be very useful when you are trying to talk to someone on your phone in a noisy place. Police could also use the technology to help them find criminal suspects by lip﹣reading recordings from video cameras.

    {#blank#}4{#/blank#} Microsoft's chatbot Xiaolce can not only provide useful information, but also chat with people like a real friend. Xiaolce has a WeChat account. After following the account, users can start talking with her. {#blank#}5{#/blank#} She keeps improving herself by talking with users.

    These technologies are being put into wider use. We may see a smarter world and better lives in the near future.

A. She knows when to comfort you or tell jokes.

B. They discussed this at the World Internet Conference.

C. Sougou brought its lip﹣reading system to the conference.

D. If you smile, it will give you a special discount for your goods.

E. Another type of AI focuses on understanding human emotions.

    Who's building the new China? It's not the factory owners or the business men and women of China. It's someone else. We see them every day. They work day and night in the terrible working conditions and weather. They build the roads, the theatres, the cinemas and the supermarkets, They even clean up our rubbish. They are China's migrant workers(民工).

    More than 140 million workers have left their homes in the countryside to look for jobs in big cities all over China. They hope to be rich, but they realize they have many difficulties in making enough money. And one of the difficulties that these workers have is the discrimination(歧视)from the people in cities. Migrant workers are living far away from those who they love. Yes, they dress differently, they speak differently, and they have different habits, but they work hard. The people in cities treat them as outsiders, and most governments don't want to give them medical care and public schooling for their children. If China hopes to move into the future, many things need to change. The first is discrimination！We need to stop our discrimination！They may not make as much money as some people do in cities, but they are good honest people just trying to survive this game of life. These workers are very important and necessary to China's economic(经济)development and have become an important force for the change of Chinese society. They are building the new China, so we should help them.