根据短文内容完成表格，每空一词

　　Why are we always tired, do you know?Firstly if we can't sleep well, we will be tired．But we are often too busy．We can't finish our work in the day and we must do it at night．We go to bed late and get up early．So we can't sleep well．Most people need at least eight hours and some more．If we sleep for only five or six hours a night, we will be tired．

　　Secondly when we are ill we will be tired．But we don't know we are ill．So if you are always tired, perhaps you are not so healthy．You'd better go to see a doctor．

　　Thirdly, perhaps you can't eat some kinds of food like eggs, nuts, meat, chocolate or coffee．If you are ill and tired after eating some food, please don't eat it again to see if you are well．

　　At last, if the air around you isn't nice and clean, you will feel tired．So please open your window often or go out for a walk and you will feel better．

1．________　　2．________　　3．________　　4．________　　5．________

短文填空

　　Why are we always tired, do you know?Firstly if we can't sleep(1)________, we will be tired．But we are often too(2)________．We can't(3)________ our work in the day and we must do it at(4)________．We go to bed(5)________ and get up(6)________．So we can't sleep well．Most people need at least eight hours and some more．If we sleep for only five or six hours a night, we will be tired．

　　Secondly, when we are ill we will be(7)________．But we don't know we are ill．So if you are always tired, perhaps you are not so(8)________．You'd better go to see a doctor．

　　Thirdly, perhaps you can't eat some kinds of food like eggs, nuts, meat, chocolate or coffee．If you are ill and tired after eating some food, please don't eat it(9)________ to see if you are well．

　　At last, if the air around you isn't nice and clean, you will feel tired．So please open your(10)________ often or go out for a walk and you will feel better．