It is important that the plan（work)__________0ut today．

tel. I had a terrible stay in room 2532 of Orange Hotel from the 16th to the 19th in March 2009 when I came to Beijing on business. Firstly, the air conditioner in my room could not operate properly. I asked your front house manager for help and she told me she would send someone to my room to check it immediately. No one came. As a result,I was very cold every time I was in the room. Secondly, I found the bathroom was dirty and the hot water was always warm.Thirdly, the noise at night was extremely loud and I found it difficult to sleep. I hope you will give immediate attention to the service in your hotel. Yours faithfully, John Smith Why does the man write the letter? To __________ about the service in the hotel.

nce to usethe language B．look for a chance to usethe language C．only use the language inclass D．try to avoid using thelanguage

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as (11) a wealth of (12) on humankind's increasing longevity (寿命) over the past two centuries. And this week in Science(美国《科学》杂志), he has some good news: The maximum (13) age we can reach too is on the rise. This finding contradicts the common scientific belief that life span has a biological upper (14) of 120 years or so. "Whether 115 or 120 years, it is a legend created by (15) who are quoting each other," Wilmoth says.

mation all the time. But our brains decide what is (11) to us. For example, if you (12) a crowded street, you will see many faces. But you will probably not really notice them. But if you see someone you know, you will (13) him immediately. From this example we can see that your brain chooses the visual information which is (14) to you, and rejects the information which it does not need. The way your brain explains that information depends on the knowledge you have about the world. And all this happens in (15) a second.

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