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Jim was often ill．He wanted to be healthy very much．But he didn't know what to do．Mr Hu, a doctor, told him how to stay healthy．“First, you must look after yourself．For example, taking a walk after supper, doing eye exercises, eating much more vegetables and so on．All of them are good for your health．Remember! Don't do anything bad for your health．For example, watching TV too much, reading in bed, eating too much, going to bed late and so on．Any of them is bad for your health．” After that he always did as Mr Hu told him．He is very healthy now．

根据短文内容回答下列问题。

1．Why did Jim want to be healthy?

2．What are good for his health?

3．What things shouldn't Jim do?

4．Did he do as Mr Hu told him?

5．He is very healthy now, isn't he?