题目内容
2.It is said that _______of the water all over the world______polluted.( )| A. | two three;is | B. | two thirds;is | C. | two thirds;are | D. | two thirds;has |
分析 据说全世界有三分之二的水被污染了.
解答 答案:B
结合题干及选选项,可知此题考查分数的表达;英语中分数的表达方法是:先分子后分母,分子用基数词,分母用序数词,当分子大于一时分母要用复数,所以三分之二应表达为:two thirds;It is said that 后引导宾语从句,指客观事实,所以从句的时态也要用一般现在时,主语water是动词pollute的动作承受者,指被污染,所以用一般现在时的被动语态,构成为:am/is/are+过去分词;由于water为不可数名词,所以用is.综合以上分析,故选:B
点评 此题考查分数的表达及时态语态的运用.要记住分数的固定表达;其次要注意时态和语态的判断,结合主语的单复数做出谓语动词的相应变化.
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