题目内容
3.Water exists in three forms,which are liquid,gas and solid.分析 水存在于三种形式中,它们是液体、气体和固体.
解答 74.exists exist是一个不及物动词,意为"存在",exist in:存在于…中. 本题主语是water,属于第三人称单数,谓语动词要加s,故填exists.
点评 考查动词的词义.在熟知单词词义的基础上与句子的语境相结合,从而写出正确答案.写动词时应注意其人称时态的变化.
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