Although the world is hungry, it is even thirstier. While nearly 3/4 of the earth is c{#blank#}1{#/blank#} with water, we are short of drinking water. This is because about 97% of the water on the earth is sea water.

    How can we a{#blank#}2{#/blank#} a serious water shortage? First, we should save water and not waste it. Then, we should protect our water resources and not pollute them. Lastly, we should discover ways to reuse water. Scientists have got some achievements in this field. But people's need for water is increasing day by day. We s{#blank#}3{#/blank#} don't have enough water. What else can we do?

    The sea seems to have the best answer. There is p{#blank#}4{#/blank#} of water in the sea. But we need to take the salt away from the sea water. This is very expensive. If scientists can find c{#blank#}5{#/blank#} ways to do it, we can solve the problem of the shortage of water.

    Spring is a time for new life. Trees turn green. Flowers are {#blank#}1{#/blank#} (到处). Animals show up in the field. Most countries have {#blank#}2{#/blank#} (他们的) own ways to celebrate the coming of this beautiful season.

    Chinese people often eat spring pancakes on the day of Lichun. It {#blank#}3{#/blank#} (意味着) "to bite the spring" (咬春) in Chinese. In the past, people thought {#blank#}4{#/blank#} (吃) spring pancakes on this day would bring a good harvest (丰收).

    In Japan, families and friends celebrate spring {#blank#}5{#/blank#} (通过) looking at cherry blossom (樱花) trees in parks. The celebration usually lasts from late {#blank#}6{#/blank#} (三月) to early May. People hold {#blank#}7{#/blank#} (晚会) or picnics under the great cherry trees. Food, drink and even dancing are {#blank#}8{#/blank#} (所有的) parts of the season.

    Bulgarian (保加利亚的) people think of spring as an old lady, kind and {#blank#}9{#/blank#} (友好的). To welcome the "old lady", they give each other special decorations (装饰品), and wish each other good health and good luck. The decorations are made of red and white wool. People {#blank#}10{#/blank#} (穿着) them on their clothes until they see the first blossoming tree.