题目内容
7．Now a number of students are ill because of the weather．（ ）| A． | much | B． | the number of | C． | a lot of |
分析 现在有许多学生因为天气而生病．
解答 答案：C
much很多，修饰不可数名词；the number of指…的数量，其后谓语动词用单数；a lot of很多，可修饰可数名词及不可数名词；根据关键词students are 可知划线短语a number of意为"很多"，其后跟可数名词的复数，所以此处应用短语a lot of替换，此句意为：现在有许多学生因为天气而生病．故选C
点评 本题考查同义词辨析．首先明确所给句子的句意，然后判断需替换的短语的同义短语，必要时根据时态等相关语法知识对要填的短语在形式上作出正确的变化．
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