Going to the zoo is very popular. Every year over 134 million visitors go to zoos to enjoy watching and learning about the animals. Zoos are the only places that most people will ever meet an elephant, a tiger or other animals that are in danger. ___【小题1】___. They help us to enjoy different kinds of animals as well as make us think more about nature(自然).

Zoos are also important to animals. In order to make more space(空间), food, and other things for ourselves, we leave less and less room for animals. ___【小题2】__. If there were no zoos, more animals in the world would have gone extinct(濒临灭绝). ____【小题3】__. Some people think that animals should not be kept by people for any reason(原因). If they become extinct, then that’s the way it should be. ___【小题4】_. We should do everything we can to protect them(保护它们).
【小题5】What’s the best title of this passage?

Going to the zoo is very popular. Every year over 134 million visitors go to zoos to enjoy watching and learning about the animals. Zoos are the only places that most people will ever meet an elephant, a tiger or other animals that are in danger. ___1.___. They help us to enjoy different kinds of animals as well as make us think more about nature(自然).

Everyone wants to be healthy. Then do you know how to keep in good health? You may say, “Having a balanced diet and doing exercise can help us.” I agree with you.  ①  In fact, good sleep is also very important.
Lots of people in the world have sleep problems. They can’t sleep well at night. The next day they are too tired to work well. They are unhappy and stressed out. Then they may have some other health problems.  ②  
How can people sleep well at night? Here are some good ideas.   ③ 
● Sleep in a quiet room.
● Do some exercise before going to bed. It’ll make you sleepy(瞌睡的).
● Wash your feet in warm water before you go to bed.
● Have a glass of milk. It’s pretty good for sleeping.
● Don’t think about boring things.  ④  Try to be relaxed.
【小题1】The writer(作者) thinks people should ______ to stay healthy.