Computers are useful machines．They can help people a lot in their daily life ． For example，they can help people to save much time to do much work，and they can help people to work out many problems easily．Our country asks everyone to learn to use computers before the twenty-first century，except the old people．

    Today more and more families own computers ． Parents buy computers for their children．They hope computers can help them improve their studies in school．Yet，many of their children use computers to play games，to watch videos or to chat．Computers can not help children to study but make them fall behind．So computers are locked in boxes by parents．

    In some other countries，even some scientists also hate computers．They say computers let millions of people lose their jobs or bring them a lot of trouble．Will computers really bring trouble to people or can they bring people happiness? It will be decided by today's students themselves!

      Information Card

    We sometimes call the lion “the king of the jungle” Because it is stronger and more dangerous than other animals.{#blank#}1{#/blank#}It is the highest animal in the land food chain.

    In the sea, the shark is one of the animals at the top of the food chain. It can swim faster than most other sea animals{#blank#}2{#/blank#}

    {#blank#}3{#/blank#}People are! We are not the biggest or fastest, but we are the cleverest. We could not run faster than cheetahs, so we invented cars and now we can move the fastest. We could not fight better than lions, so we invented guns. Now we can hunt the best. People's inventions are clever, but they can be dangerous, too. For example, people invented factories, and now they make the air and rivers dirty.{#blank#}4{#/blank#}Dirty rivers kill fish. Then bears cannot eat the fish and die. If we kill one part of the food chain. Other parts also die. Remember that we are a part of the food chain, so we are in danger, too!{#blank#}5{#/blank#}We should and we could do something for the world!

    Memory(记忆) is very important. It helps you remember who you are, where you live, what you have learnt and what you plan to do in the future.{#blank#}1{#/blank#} 

    Memory has close relationship with the brain(大脑).{#blank#}2{#/blank#} For example, you can do new things. If you walk a different way to school or take a different bus. You will keep your brain active. You can try to remember something new. You can try to learn new skills.{#blank#}3{#/blank#} Your brain gets lost of regular exercise if you do any of these things.

    If you live a healthy life, your memory will work better. You must have a balanced diet(均衡饮食)not just fast food.{#blank#}4{#/blank#} Unless(如果不)you get enough sleep every night, you will not remember things well.

    {#blank#}5{#/blank#} If you get too worried, your brain will slow down, and your memory will become less sharp. So, to improve your memory, you should exercise your brain, live a healthy life and stay relaxed.

阅读下面方框中的五个选项（ABCDE），从中选出可以填入空白处的最佳选项，并将其标号填在相应的横线上。

    On Sept 4 and 5 this year, the 11^th G20 Leaders Summit (峰会) was held in Hangzhou, capital of Zhejiang Province in east China. It was a big success.

    G20 is made up of the world's most important 20 economies (经济体)—the European Union and 19 countries. Both developed countries like the US and Germany, and developing countries like Brazil and China are members of it. Every year, the G20 members get together and talk about the world economic events. For example, after the financial crisis (金融危机) in 2008, they agreed that the International Monetary Fund (IMF, 国际货币基金组织) could give money to countries in need. Other events also included making sure poorer areas have enough food and good development.

    It was the first ever G20 summit to be hosted in China. The logo of the summit looks like a bridge. "I got the idea from the old bridges at the West Lake," said the designer Yuan Youmin. "Bridges bring people and places together in many different ways, just as the G20 makes east and west get together."

    Chinese food also pleased many foreign guests with its culture. At the welcome dinner to the member leaders there was one famous dish—Dongpo Rou. Song Dynasty poet Su Dongpo made the dish first. Su once lived in Hangzhou.

    One main topic of the summit this year is to develop goals and plans of creative growth for G20 members. China itself is developing its creative ability in recent years. It is not easy to host such a summit, butChina has made a great contribution (贡献) to the G20 by bringing out a new future.

    Road accidents keep happening in every city, on every road and at any time. Traffic rules are made to keep order on the road. They can also help to keep the pedestrians(行人)safe.

    The pedestrian has as many rules to follow as the driver of a car. You should walk on the sidewalk or at the edge of the road. Always look carefully before you walk across the street. If you ride a bike, don't ride in the middle of the road or look around to talk. If you drive, you should slow down at the traffic lights. You must always wear a seat belt(安全带). Without the belts, both the driver and the passengers may be badly hurt in a sudden accident.

    Traffic rules are also called Road Safety rules. The maxim(格言)for all road users is "Thinking about others."