Reading rooms must_____quiet.A.be kept B.keep C.keeping D.kept需要用被动语态吗?
问题描述：
Reading rooms must_____quiet.
A.be kept B.keep C.keeping D.kept
需要用被动语态吗?
答
B 用主动形式表被动含义
答
A 要用被动语态,must be是一定的意思。
答
A
要用被动语态
答
kept..因为must be done sth
不是Reading rooms必须安静..而是Reading rooms必须被安静
答
需要,因为这里有must,注意体会.
不过,英语中有些动词能以主动表示被动意义:
The cloth washes well.
The door won't lock.
The pen writes smoothly.等等
这种句子的主语常是"物",且此物常具有某种内在的特点,使动词所表示的动作得以实现或难以实现,因此主语可以看作动作的执行者,如改为被动,意义有所区别,如:
His novels don't sell.(销路不好)
His novels are not sold.(与小说本身无关,小说可能不错,但未售出)
答
A 因为must be 的意思是一定