Ifyouwanttokeephealthy，youshouldhavegoodhabits．Thenwhatisahabit？Itissomethingwedoveryoften．Wedon'teventhinkwhenwedoit．Ithasbecomeapartofourlives．"Earlytobed，earlytorisemakesamanhealthy，wea
If you want to keep healthy，you should have good habits．Then what is a habit？It is something we do very often．We don't even think when we do it．It has become a part of our lives．"Early to bed，early to rise makes a man healthy，wealthy and wise．"This is an old English saying．Do you know what it means？It means that we must go to bed early and get up early in the morning．
If we do，we shall be healthy，rich and clever．
Is this true？Perhaps it is．We know the body must have enough sleep．Boys and girls need eight or nine hours'sleep every day．If you don't go to bed early，you will not have enough sleep．Then you will not think properly or do your work well．Of course，you can't be healthy，or wise or wealthy．
Some people go to bed late at night and get up late in the morning．This is a very bad habit．When we get up early in the morning，we can go out and do morning exercises．Exercise means doing things with the body．Walking，running，jumping，swimming and playing ball games are all exercises．If the body is not exercised，it becomes weak．
Exercises help the blood to move around inside our body．Blood takes food to all parts of our body．
Our body also needs air to breath．Without air，we will die．We must have a lot of clean fresh air if we want to be healthy．That is why many people like to go out to do morning exercises．
任务一：根据短文内容回答下列问题．
36．What is the meaning of the word"habit"？___
37．How long do young boys and girls need to sleep a day？___
38．Can it help us to be healthy，wise and wealthy to go to bed early？___
39．What does the"exercise"mean in this passage？___
40．What should we do if we want to be healthy？___
任务二：根据短文内容完成下列句子．
41．From the passage we know that it is___ for our health to go to bed early．
42．To go to bed late at night and get up late in the morning is a very___habit．
43．___help the blood to move around insi