海水是人类的资源宝库，从海水中可获得多种产品．

（一）海水可以晒盐，得到粗盐．提纯含有泥沙的粗盐，一般要经过一下操作流程：

受热带季风气候的影响，印度最易发生的自然灾害是（    ）

I watch TV____eight____the morning.

下列动物中，体温恒定的动物是(　  　)

①鲸　②青蛙　③丹顶鹤　④鸭嘴兽　⑤大鲵　⑥扬子鳄　⑦鲫鱼

     Tom and Mike are good friends. They are good with children. They want to find jobs in summer vacation. This Friday Tom tells Mike that Sunson School Trip needs teachers to help with sports, music and computer. Mike is glad to know that.
    Tom can play basketball, volleyball, and he can swim. Mike can play the violin, the trumpet, the drums and the guitar, and he can swim,too. Tom and Mike like computers very much. Can they join Sunson School Trip?