题目内容：

Flowers have habits or ways of doing things, just as people have. Would you like to hear about some of these?

There is one habit that almost all flowers have. They turn to the light. If plants are kept in a room, the flowers turn to the window.

Some flowers shut up at night. It seems that they go to sleep. They open again in the morning. Tulips（郁金香）do this.

One morning Lingling was looking at some tulips. When one of them opened, a bee flew out. He stayed too late last night, and so was shut up in the flower.

He might be hard at work all day getting honey.

He stopped to rest in the tulip, and was shut in when it closed. He had a fine bed that night. Lingling wondered if he slept any better than he would have slept in the hive（蜂巢）!

Answer the questions according to the passage. （必须使用完整语句作答）

1.If plants are kept in a room, what happens?

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2.Some flowers shut up at night, don’t they?

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3.When did a bee fly out?

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4.Why did the bee sleep in the tulip?

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5.What did Lingling wonder?

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