阅读下面短文，然后根据短文内容选择最佳答案。

　　Water can be a liquid, a solid or a gas．When it is a solid, it may be as hard as rock．When it is a liquid, you can pour it out of a bottle．When it is a gas, you cannot see or pr feel it．

　　Water can change from one form to another easily．When we freeze water, it turns into ice．When we boil water, it turns into steam．When ice melts, it turns into water．When steam cools, it turns into water．The three forms of water are ice, steam and water．

　　Where does water come from? Water rises to the sky by the heat．Water vapour is formed．This rises and forms clouds in the air．When the clouds come near a mountain, they are forced to rise．As the clouds rise, they are cooled．The higher they rise, the more they are cooled．This causes more and more water vapour to condense(凝结)．In this way, the tiny drops of water in the clouds get bigger and bigger until they are heavy enough to fall to the earth as rain．

　　Some rain water which falls on the earth again rises to the sky by the sun's heat．Some of it sinks into the ground．It may be used up by thirsty plants．It may reach a well．Most of the water goes back to the rivers, seas and oceans．This process then starts all over again．This process is called the water cycle．

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完形填空，先通读下面的短文，掌握其大意，然后在每小题所给的四个选项中，选出可以填入空白处的最佳选项。

　　On the evening of last Sunday while I was reviewing my lessons in my room, it suddenly began to rain．　　1　　 as usual, I stopped to listen to the rhythm(韵律)of the rain．For many years, whenever it rains, I couldn't 　　2　　 listening to it and thinking of the garden in which I spent my childhood in my hometown．

　　When I was a little girl, my family lived in a big house with a big garden in the countryside．The garden was full of flowers and 　　3　　 , with some bamboo in front of the wall．Whenever it rained, I 　　4　　 to sit in the front of the house, listening to the rhythm of the rain and watching the 　　5　　 raindrops．

　　When small drops of rain fall from the heaven in a row, they 　　6　　 a curtain made up of pearls(珍珠); when the raindrops 　　7　　 the ground, a lot of small sprays(水花)will splash(溅出)and then disappear slowly．

　　I have been 　　8　　 interested in watching such a scene．Listening to the rhythm of the rain, I feel calm and peaceful in my heart．This feeling of peace makes me think a lot about life．We are the 　　9　　 of the earth, and one day we will embrace(拥抱)our earth and stay with her forever．Life is short and we should treasure it．

　　Listening to the rhythm of the rain, I learn to understand the 　　10　　 of life．

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