It is December 25th, 2050. The people in the city are all celebrating Christmas. I'm the mayor of our city. My citizens and I are holding a big party under the sea, though you wouldn't believe it. But please do not feel excited, you should feel sad because we have to live under the sea. Because of the pollution, the earth has been completely destroyed, from top to bottom. The atmosphere has no oxygen and moisture. As a result, the plants are burned by the strong sunlight with a great number of harmful rays. Of course, none of them are still alive. Not only no green, but also the temperature reaches about 121℃ all day even in winter because there is too much CO2 circling the earth.
On the land, there is no life. Luckily, the sea is not destroyed by human. So, we have to move into the sea. At the bottom of the water, people have built many new cities. There is a lot of advanced* equipment in each city. Computers are used to control all the machines, even the people's life. We can also make the seawater into fresh water. There are two machines making oxygen. If they stop working for only one minute, more than 10 million people will die.
The population of our city is over 30 million and, of course, it is quite crowded. We have lots of high buildings and bridges. The roads are wide, too. Our cars are miniature UFOs, don't be surprised, it is true. At the bottom of the sea you can't see anything, because there is no light all day. However, we have advanced lighting equipment so that we can see the "sun"under the sea. Of course, the advanced lighting equipment is very expensive. And if it doesn't work, we can see nothing under the sea. What should we do then?

    China is a great country with the largest population in the world．In order to solve the population problem，our government carried out one﹣child policy （政策）before．When it is carried out for some time，many people not only see its advantages but also disadvantages．

    From 2016，two﹣child policy is put into effect．In my opinion，two﹣child policy is good．First of all，two﹣child policy is the gift for some only child．For some families，maybe the parents are only child and they also can have only child．Besides the loneliness of their child，when their child grows up and they grow older，their child marry an only child girl，the burden（负担）on their child and his wife is too heavy．Their child and his wife have to take care of two couples．Usually，a young couple looking after an old couple is a little difficult．But if their parents have two children，they can share the burden of taking care of their parents．It would be much better．Secondly，two﹣child policy can guarantee （保证） the number of Chinese population．

    All in all，one﹣child policy has been out of date．And two﹣child policy is needed and necessary．It can solve the problems of nowadays （现在）and the future．

    Beijing Opera is the most representative of all Chinese traditional dramatic forms, mostly from the local drama "Huiban", which was popular in South China during the 18th century. It is. scenic (戏剧的) art integrating music, performance, literature, aria (咏叹调) , and face painting.

    Theatrical art forms in many other countries do not present singing, dancing and spoken parts in one single drama. An opera singer, for example, neither dances nor speaks on stage; there are no singing or dancing parts in a modern play; in a dance drama, the dancer has no speaking role and does not sing either. Traditional Chinese drama, including Beijing Opera, is a kind of entertainment which includes spoken parts, singing, dancing and acrobatics.

    In addition to its presence in China, Beijing Opera has spread to many other places. Mei Lanfang, one of the most famous performers of all time, was the first to introduce Beijing Opera to foreigners and made highly successful tours to foreign countries.

    "You will be puzzled all the way through and a little bored from time to time; but you will be charmed and interested. You will be strongly attracted to Beijing Opera even if you know nothing of the dramatic background." This is how one American traveler described his first experience in watching Being Opera.

    Beijing Opera is China's national opera and it is full of Chinese cultural traditions. Welcome to China and enjoy Being Opera!

Hello, I am Mary. I live in Chengdu. It's sunny and cool in my city now. I'm studying at home. My parents are shopping. What's the weather like in your city? And what are you doing?