she was often heard_______ A sing B singing Csung D to sing
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she was often heard_______ A sing B singing Csung D to sing 但是我认为B也正确
本题只能选择D to sing.
理由:
“hear sb do sth”意思是“听见某人(经常)做某事”,
强调“sb”和“do sth”之间的主动关系及动作的过程频繁发生.
但是当把“hear sb do sth”变成被动语态时,
需要在“do sth”前面补上不定式符号“to”.
因为主动语态“hear sb do sth”中的“do sth”本来就是省略“to”的不定式短语.
但是变为被动后,需要补回被省略的“to”.
这是英语的语法规定,
也是一个经常用于考试的考点.
最后,特别要向你说明一点的是:
本题中,用了一个“often”,
表示“sing”这个行为是经常的、频繁发生的,
而不是正在发生的,所以,“B singing ”这个选项是不能选的.
不知道,我说明白了吗?
理由:
“hear sb do sth”意思是“听见某人(经常)做某事”,
强调“sb”和“do sth”之间的主动关系及动作的过程频繁发生.
但是当把“hear sb do sth”变成被动语态时,
需要在“do sth”前面补上不定式符号“to”.
因为主动语态“hear sb do sth”中的“do sth”本来就是省略“to”的不定式短语.
但是变为被动后,需要补回被省略的“to”.
这是英语的语法规定,
也是一个经常用于考试的考点.
最后,特别要向你说明一点的是:
本题中,用了一个“often”,
表示“sing”这个行为是经常的、频繁发生的,
而不是正在发生的,所以,“B singing ”这个选项是不能选的.
不知道,我说明白了吗?
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