根据短文内容和首字母提示，把所缺单词填写在短文后面相应的横线上，使句意完整。

It's very important for us to keep h___1_____in our everyday life. Here is some a____2____for you. First, you should have healthy diet. Different food helps us in different w_____3____. You should eat more fruit and vegetables instead o____4____hamburgers, Beijing roast duck and so on. If you choose the right food, you can have healthy eating habits. Second, doing exercise is good f___5_____your health. For example, climbing mountains, riding bikes or swimming. Third, you should s_____6____at least eight hours a day and you shouldn't work or study too hard. Finally, remember that s ____7____is bad for your health, so don't smoke, you will become m____8__healthier.

小题1:_______ 小题2:________ 小题3:________小题4:________ 小题5:________小题6:_______小题7:_________小题8:________

混凝土中掺加掺合料的意义？