作业帮This book ___ Lucy's.Tom's name is on its cover.A.can't be B.mustn't be C.may not be选啥,还有一个辨析的may be not 与may not be 有区别吗
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 16:49:53
This book ___ Lucy's.Tom's name is on its cover.A.can't be B.mustn't be C.may not be选啥,还有一个辨析的may be not 与may not be 有区别吗
This book ___ Lucy's.Tom's name is on its cover.A.can't be B.mustn't be C.may not be
选啥,
还有一个辨析的
may be not 与may not be 有区别吗
This book ___ Lucy's.Tom's name is on its cover.A.can't be B.mustn't be C.may not be选啥,还有一个辨析的may be not 与may not be 有区别吗
A：can't “不可能,一定不…” 如He can't know this.
B：mustn't “不许（表示禁止做某事）”如You mustn't park here.
C：may not be “或许不…”如He may not know her address.
此句意为“这本书【不可能】是Lucy的.因为书的封皮上是Tom的名字.”所以选A.
辨析：①may not be 中的may是情态动词、用法类似于情态动词can：后加动词原形,表否定时直接在情态动词后面加not +动词原形.当二者都表示“可能”时、其区别在于may用于肯定句、can用于否定句.所以上面的选择题中C项意为“【或许不】”、而不当“不可能”讲,因为may表示“可能”时用于肯定句.
②may be not这样三个单词的说法中的may是情态动词,在句中构成主系表结构,如He may be not a soldier.他【可能不是】军人.
A can't be 是指"一定不是”，与must be 相对应。
A
否定句中的猜测用can't
加油！不明白再问！如果帮到你，请采纳，谢谢！