Schoolchildren in the UK are learning computer coding(编码). What do you think of 2014 was the 25^th birthday of the Internet ? It was also the Year of Code. From 2014, UK schools started     1    schoolchildren aged 5-16 to learn code, or the languages that give orders to computers.

Amy Mathers first learned to code at a science festival when she     2     11 years old. Now she teaches older kids how to code. Mathers says that she isn’t surprised that code     3     more and more (越来越）popular.

School isn’t the only place where you can learn coding. You can     4     it in many different places.There are clubs and groups helping young people learn coding. Lots of girls     5     the clubs and groups ,although most are still boys.

The World Wide Web has become     1     very important part in our daily life. In 1989, a British engineer named Tim Berners-Lee     2     up with the idea of the Web. It is a group of pages of information that are connected to each other around the world. That is the very beginning of the Web. Since then, the Web has     3     the way people live. With a click (点击) of a mouse , we can read news, buy things, make     4     and learn anything we’re interested in.

Now many years after its birth,     5     will the Web influence (影响) life in the future? We can share plenty of     6     to make our life more convenient. So one day in the future, your front door can send you a message. “Dear sir, everyone has     7     the house, But I’m still open!” But scientists warn us that if we share personal information     8     the Internet, it can get into the wrong hands. It’s not wise to spend a whole day     9     something on the computer. People need to get close to nature and     10     the sun.

Do you often go on the Internet? Nowadays "If you agree with me, please 'Dian Zan'." is one of the     1     sentences on the Internet. When you think someone's ideas are right, when you think someone's articles are wonderful, or when you     2     by what someone writes, you can click（点击）the praise sign. In a word, clicking the praise sign means that you agree with someone or praise     3    

"Dian Zan" is a kind of Internet language, so people     4     use it when they surf the Internet. In fact, the function（功能）of "Dian Zan" first appeared in the Qzone. The Qzone has had the function since 2009. However, it didn't become very popular     5     Sina blog（博客）started the function of "Dian Zan".And it       6     more and more popular in the past few years. When the 2015 New Year's Day came, Chinese leader Xi Jinping used the words "Dian Zan"     7     his thanks to the great Chinese people.

Websites can know how many people support some ideas     8     counting how many people click the praise sign. Experts can know     9     teenagers are caring about through what they click the sign for. That can help them solve teenagers'     10    

Locks help protect our homes and the things inside them from thieves. Keys that open those locks are really important to home     1    !

Some of the     2     keys, dating back to 700BC were large and made of wood. They opened palace gates and looked like giant toothbrushes.

Hundreds of years later, the Romans made     3     metal keys. In fact, rich Romans wore some of them as     4    . They locked boxes that contained valuables with these keys.

Key styles became more artistic in the 14^th century. Some European locksmiths became famous for making beautiful keys. Kings invited them to         5     their castle keys.

As European cities grew in the 18^th century, so did the number of thieves. The locks and keys became better at preventing thieves from breaking in.

Today, office workers and hotel guests open doors using     6    keycards, cards that are used as keys. There are even smartphone apps for gaining entry to one’s home without a key. Though       7    metal keys may one day disappear, the need for security will     8    .

Do you take keys with you every day?

When we talk about flying taxis, we usually think of some pictures from science-fiction movies. Well, here’s a real one. Last year, a company in Moscow     1     a flying taxi. It is a drone. It flies in the sky by     2    !

The taxi can carry two people. I can fly at 200 km per hour. That’s much     3     than a car. The taxi weighs 300 kg and can fly as high as 100 km above the ground, according to Sputnik News. It can take     4     like a plane. The company plans to put its flying taxis into use in 2025. Passengers will order a flying taxi through an app on their phone.     5     the taxi comes, they can choose where they want to go on a touchscreen. There is no pilot in the drone. But some people on the ground will be watching it. They will make sure the trip is safe.