强调句型的结构组成部分:It is (was)+被强调部分(主语、宾语或状语)+that (who)。
强调句是人们为了表达自己的意愿或情感而使用的一种形式。强调句能强调除谓语部分外的大部分成分,根据不同的强调内容,会有一些变化。
强调句型情况1:当强调句型表示现在或未来的情况,这个时候需要将现在时改为过去时态。
原本的句子: I saw him the day before yesterday.
强调的句型:It was him who\that I saw the day before yesterday.
强调句型情况2:强调比较复杂的内容的时候,会有很多其他的强调句型结构形式。
(1)当强调部分为复杂的时间状语从句,此时只能使用that。
例句:It was only when I reread his poems recently that I began to appreciate their beauty.
(2)当强调部分是人称代词的时候,此时强调句和原句使用同一种格。
间状语从句、地点状语从句、not until… 结构、not only…but also…和as well as…等结构。
例句:It is not only he but also his parents who\that have been to Beijing.
(3) 当被强调的主语是人时,可用It is/was ... that/who ...,但如果被强调的部分既包括人又包括物,只能用that。大家不要随随便便使用when, where 或why来代替,就算是被强调部分是地点状语或者是时间状语,一样也只能使用that,而不能使用where或者是when,以下两个例子就是比较典型的:
例句:It was in the street that I met him yesterday.
例句:It was about 600 years ago that the first clock with a face and an hour hand was made.
在判断依一个句子是否是强调句时,先将It was/is和that去掉,如果剩下的部分仍然是一个完整的句子。
强调句型情况3:强调句型的特殊疑问句结构。
原本的句子:Where did you found your lost pen?
强调的句子:Where was it that you found your lost pen?