1.  They needn't a lot of food.

2.  Type writting is a hand work which need a lot of pratice , you can improve your speed through a lot of pratice , in addition, many sports such as playing tennis, basketball, and so on are also need a lot of pratice .

3.  because populations increase mordern industries need a lot of fresh water and water pollutions become more and more serious nowadays .

4.  Industry also need lots of water and the anomt of using water is increasing.

5.  Second produce , food-making , machine-working and so on also need a lot of fresh water.

6.  The other cause is that with industry developing, it is necessary to need lots of water.

7.  And the increasing of population also need lots of water.

8.  On the one hand , the card is more and more expensive, people need a lot of money so that we sometimes can't afford them .

9.  Everyday they need a lot of water.

10.  We need a lot of water everyday, but you can see many lakes and rivers have been polluted.