Question

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　　Of all the things we eat and drink, water is the most important. Not many people understand this, but it is quite true. The human body can go without food for a long time, but two or three days without water usually make people dead.

　　Many people don't understand how much water the human body needs to work well and many people do not drink enough, especially in hot weather. Most people drink when they are thirsty, but they often need more water especially when they take exercises.

　　A man's body is 65 to 75 percent water. If we do not have enough water, we feel tired and may become ill.

　　The most important drink is 1 . People can 2 for a long time without food, but they will 3 if two or three days 4 water. In 5 weather, many people do not drink 6 water, because they don't know how much water they 7 . People should know when they take exercises, they need 8 water. The water in the man's body is 9 more than other matters. We'd better have enough water. 10 we may ill.

Answer 1

答案：
解析：

1．water　　從文章的第一句Of all the things we eat and drink, water is the most important.可知答案． 　　2．live　　文章第二句說“人們一段時間不吃飯也沒有關系，但兩三天不喝水就會死亡．” 　　3．die　　同問題二的答案． 　　4．without　　without“沒有”． 　　5．hot　　從文章第二段的第一句可知答案． 　　6．enough　　從文章第二段的第一句可知答案． 　　7．need　　從文章可推出“人們總是沒有喝夠水，因為他們不知道他們需要多少水”． 　　8．more　　從文章第二段第二句可知答案． 　　9．much　　much修飾形容詞的比較級．much more“更多”． 　　10．Or　　or“否則的話”．