What do you know about the sea?  Some people have seen it but others haven't. The sea looks beautiful on a fine sunny day and it can be very tough when there is a strong wind. What other things do you know about it? Of course, the sea is very large. In the world there is more sea than land. If you have swim in the sea, you know that the sea is salty.  Rivers carry salt from the land into the sea. Some  places of the sea are saltier than the other places. Do you know the Dead Sea? It is so salty that you can't sink when you are in the  water! And fish cannot live in it!

　　譯文：你對(duì)大海了解有多少？有些人曾經(jīng)見過，但有些人并沒有，大海可以在晴天看上去很美，當(dāng)刮風(fēng)的時(shí)候，看上去很兇狠。還有一件事情你肯定知道，當(dāng)然，那就是大海非常大，在這個(gè)世界上，跟土地比，海洋要大得多。如果你在海里游泳過，你就會(huì)知道，大海是咸的。河流從陸地帶來鹽分到海里，不同地區(qū)的咸度也不同。你知道死海么，咸到?jīng)]有魚類可以在里面生存。