题目内容：

Read the passage and fill in the blanks with proper words（在短文的空格内填入适当的词，使其内容通顺。每空格限填一词，首字母已给）

What do you know about the sea? Some people have seen it but others haven’t. The sea looks b1. in sunny weather and it can be very rough（汹涌的）when there is a srong wind. People like to go to the beach for their holidays.

What e2. do you know about it? If you look at the map of the w3., you will find three quarters of the Earth is covered with water. If you have swum in the sea, you will know that the sea is s4.. Rivers c5. salt and the sand into the sea. Some places of the sea are saltier than the other places.

Do you know the Dead Sea? In fact, Dead Sea is not a sea, it is a l6.. Fish can’t live in it because there is too much salt in it. But people can e7. swim in it. You needn’t worry because it is impossible for you to sink(下沉) in the Dead Sea.