单选题Tomisthetalleststudentinhisclass．

单选题 Tom is the tallest student in his class．This sentence doesn't mean：A.Tom is taller than any other student in his class．B.Tom is taller than anybody else in his class．C.Tom is taller than anyone in his class．D.No one else in his class is so tall as Tom．

C解析分析：原句是最高级，改为比较级。在最高级的句子里，主语必须包含在“范围”里，本句的Tom包含在范围in his class里。在进行A方和B方作比较时要注意“分离”的原则，即A方里不能含有B，B方里不能含有A．A句中的 Tom 和 any other student in his chtss通过other进行了分离。B句中的Tom和anybody else in his class通过else进行了分离。D句中的No one else in his class和Tom通过了else进行了分离，这些句子中如果没有other，else那么any student in his class，anybody in his class，no one in his class中就会包含Tom，构成错句。C句中anyone in his class包含Tom，没有分离，也就是说Tom会有可能自己和自己比，所以是错句。(延伸)还可以用the rest或the rest of来进行分离：Tom is taller than the rest in his class．Tom is taller than the rest of the students in his class．注意下面句中的A方和B方本身是分离的，不能加other：Shanghai is larger than any city in Korea．

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