为了丰富校园生活，你校学生会将举办歌唱比赛，请根据以下信息用英语写一篇广播稿。

1). 参加对象：全体高一学生

2). 比赛要求：表演限时3分钟，自带伴奏录音（Karaoke）或乐器

3). 比赛时间：5月22日 下午2点

4). 比赛地点：学校礼堂（auditorium）

注意：1). 词数80左右（开头和结尾已给出，但不计入总词数）

2). 可以适当增加细节， 以使行文连贯。

Boys and girls,

Attention please!

    In order to enrich our school life, the students' union……

    Wish you success!

注意：1. 词数100左右；  2. 可根据内容要点适当增加细节，使行文连贯；3. 参考词汇：颗粒病毒：virus particles

    Hello， everybody！It's true that many people are infected with flu virus when the weather changes frequently.

Thank you.

1）尊重并信任朋友；

2）常与朋友聊天；

3）换位思考问题。

注意：1）词数80词左右。

2）可以适当增加细节，以使行文连贯。

1)春节在中国的地位；

2)春节的时间、春节来临前及期间人们的活动；

3)你对春节的感受。

注意：1)可适当发挥使行文连贯，词数100左右；

2)开头和结尾已给出，不计入总词数。

参考词汇：春节联欢晚会the Spring Festival Gala

    Over the past few years, there has been a big increase in the number of people sharing information online. In this article we will learn about some positive factors for people to share information online.

    We often share information with our friends in the office or at home to educate, entertain or pleasantly surprise them. In this way we can connect with others. This is also true while sharing information online. If you look at the Facebook wall posts of your friends, you will realize that most of their updates are usually famous quotes, entertaining videos, inspirational images, funny jokes, etc. 94% of those who responded to a survey by the New York Times said they put a lot of thought into how the content they are sharing will be beneficial to others.

    A lot of people share information online to represent their true self to the outside world. Some people, especially those who are shy and not comfortable talking about their areas of interest in the presence of others, find it extremely convenient to share that information online with like-minded individuals.

    78% of the respondents in the study of The New York Times said they shared information online because it helps them develop better relationships. Today, a lot of people do not have the time to meet each other in person and the Internet has become a great substitute. A lot of people now "meet" each other online, rather than in conventional places like restaurants and pubs.

    Lastly, when we share our thoughts online, we are actively engaging with the vast community of people who are a part of the World Wide Web. Sharing information will make a difference to the viewpoint of others, or add to their understanding about the world.

    It is natural for species of animals to become extinct over millions of years. But over the past 200 years, humans have caused the process to speed up. In recent years, the total number of threatened animal species has increased from 5205 to 5345. In most cases this is a result of human activity. How are people speeding up the process of animal extinction?

    First of all, people threaten the survival of animal species by destroying their habitats. As the human population grows, people keep building houses and factories in fields and woods. As they spread over the land, they destroy animals' homes. If the animals can't find a place to live, they die out. Sixteen kinds of Hawaiian birds have become extinct for this reason.

    Overhunting is another way that humans are causing some animals to become extinct. In some parts of the world, the parts of rare animals are worth a lot of money. For example, some people will pay more than $3,000 for a single rhino horn. This encourages hunters to kill rhinos even though the animal faces extinction.

    Humans are also polluting the air, water and soil. The effect of pollution on animal species can be complicated. For example, when waste from factories is dumped into rivers, the rivers become polluted. The fish that live in the rivers are poisoned, and the birds cannot lay strong eggs. And some, such as brown pelicans, have become rare and may die out.

    Finally, when humans introduce new species into certain environments, the animals that already live there become threatened and face extinction. For example, when European settlers brought rabbits and foxes to Australia, they killed off many native Australian animals, including the bandicoots. Eventually, the rabbits took over the bandicoot habitats. Now bandicoots are threatened with extinction in their own land.