Many musicians meet and form(组成)a band because they like to write and play their own music. They may start as a group of high school students and practice their music in someone's house. Sometimes they may play to passers—by in the street or subway so that they can get some money for themselves or pay for their instruments (乐器).

    However, there was one band that started in a different way. It was called the Monkees and was formed in 1965. It began as a TV show. The TV show had planned to find four rock musicians who could act as well as sing. But they could only find one who was good enough. They had to use actors for the other three members of the band.

    Since some of these actors could not sing well enough，they had to ask for help from other musicians. So at first，the band just pretended (假装)to sing. Anyway，their performances were excellent and they got lots of fans. Each week on TV，the Monkees would pretended to play and sing songs written by other musicians. After a year or so，they became more serious about their work. They started to play and sing their own songs like a real band. Then they produced(制作)their own records and started touring and playing their own music. In the USA they became even more influential and popular than the Beatles and sold even more records.

    However, the band broke up around 1970，but happily they reunited(重聚)in the 1980s. They produced a new record in 1996 to celebrate their time as a band. It was very successful. Today the Monkees are still making music for their millions of fans.

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    Have you ever run into a careless cell phone user on the street? Perhaps they were busy talking, texting or checking updates on WeChat without looking at what was going on around them. As the number of this new “species” of human has kept rising, they have been given a new name — phubbers（低头族）.

    Recently, a cartoon created by students from China Central Academy of Fine Arts put this group of people under the spotlight. In the short film, phubbers with various social identities bury themselves in their phones. A doctor plays with his cell phone while letting his patient die, a pretty woman takes selfie in front of a car accident site, and a father loses his child without knowing about it while using his mobile phone. A chain of similar events eventually leads to the destruction of the world.

    Although the ending sounds overstated the damage phubbing can bring is real.

    Your health is the first to bear the effect and result of it. “Constantly bending your head to check your cell phone could damage your neck,” Guangming Daily quoted doctors as saying. “the neck is like a rope that breaks after long-term stretching.” Also, staring at cell phones for long periods of time will damage your eyesight gradually, according to the report.

    But that's not all. Being a phubber could also damage your social skills and drive you away from your friends and family. At reunions with family or friends, many people tend to stick to their cell phones while others are chatting happily with each other and this creates a strange atmosphere, Qilu Evening News reported.

    It can also cost you your life. There have been lots of reports on phubbers who fell to their death, suffered accidents, and were robbed of their cell phones in broad daylight.

人体的肌肉主要是由蛋白质构成的，但骨骼肌、心肌、平滑肌的功能各不相同，是因为