Are you a-teenager____ (absorb) in music? If so, I will give you a warning – the music you love could end up making you deaf. More ____(specific), the way you listen to the music you love could make you deaf.

    The problem is .headphones. In the past, we played music out into the air. Then earmuff-style（耳罩式）headphones ____ (invent) and we were able to play music much closer to our eras. Now we have earbuds（耳塞）, which many doctors think are ____ (bad) than older headphones because they play music directly into the eras. Also, earbuds are not as good as blocking outside noise, so people____ use them nay turn the volume ____ to dangerous levels.

    What's the dangerous level? Well, it ____(depend) on how long you are going to listen to the noise. Very, very loud sounds can be dangerous to your hearing. But the scary ____(true) is that even seemingly “normal” noise can be dangerous ____you listen to it all the time.

    Think for a minute about how long you spend ____ (listen) to loud noise with headphones every day. Then do some research. There are resources online telling you what volumes are safe, and for how long.

Hans Christian Andersen(安徒生)

    Hans Christian Andersen is a great writer. He wrote many popular stories for children all over the world. April 2 is his birthday and it is also Children's Book Day.

    Andersen was born(出生) in 1805. When he was a little boy, his father read him a story every day. He felt very happy at that time. But his father died when he was 11 years old. Then he had to leave school. Andersen started working as an actor and singer. He loved reading books so much that he went back to school at 17. His first book came out in 1835. From then on, he wrote about one book a year for 37 years.

    There will be a park about Andersen's sales(传说) and life in Shanghai. If you like Andersen, you can go there to learn about his life and tales, and you can play games, too.

面粉____看到颗粒，分布____均匀，____出现，用____的方法分离。