题目

阅读下面的文字，完成3～4题。（6分）生命源泉的枯竭――水污染     水与空气、食品是人类生命和健康的三大要素。人体的水分占体重的50%到60%，儿童体内的水分多达体重的80%，没有水就没有生命。地球上的淡水资源只占地球水资源总量的3%，这3%的淡水中，可直接饮用的又只有0.5%。所以说，水是宝贵的资源，是生命之泉。    但目前水污染相当普遍而又严重。“水污染“是指水体因某种物质的介入，而导致其化学、物理、生物或者放射性等方面 My name is Mary. I’m a middle school student. I have a good friend, Jane. Now let me tell you about my best friend.Jane is as old as me, but she is a little shorter. She has brown hair and blue eyes. She is always happy.We are in the same class, and we often help each other with our schoolwork. I think she is smarter than me. We both enjoy playing ping-pong, and we practice together every day. We play computer games at times. Jane usually wins. However, she’s not as hard-working as me, and so I always get better grades than she does. I think I should help her more. We often talk about and share everything about us.根据短文内容，判断正误. 正确的在答题卡上涂A,错误的涂B.(共5小题，每小题2分。共10分)1.Mary and Jane are good friends.2.Jane has the same age as Mary.3.Mary studies harder than Jane.4.Mary usually wins Jane in computer games.5.Jane doesn’t like sharing everything with Mary.