一、關于結構中的that
此結構中,除強調的是作主語或賓語的人時可以用who外,其它任何情況都只能用that。如:
It was Kate that/who told me about it. 是凱特告訴那件事的。
It was yesterday afternoon that she told me about it. 是昨天下午她把那件事告訴我的。(that不能用when替代)
二、關于結構中be的形式
原句中謂語動詞是過去式,強調結構的be用is,原句謂語動詞是現在時或將來時,強調結構的be用was。如:
It is he that likes playing games. 是他喜歡打游戲。
It is tomorrow that we will have a meeting. 是明天我們要開會。
注:be有時與表示推測的情態動詞連用。如:
It must be John that/who cleaned the room. 一定是約翰打掃房間的。
三、關于主謂一致問題
被強調的是原句的主語時,要注意that/who后的謂語動詞與原句主語一致。如:
It is I that am in trouble. 是我陷入了困境。
It is you that are wrong. 是你錯了。
四、強調結構的省略式
—Who is making so much noise in the garden? 誰在花園里吵鬧?
—It is the children. 就是那些小孩呀。(=It is the children that are making so much noise in the garden. )
五、如何強調否定句
要將not一同強調,構成It is/was not…that…
It is not he that/who studies French. 學法語的不是他。(原句:He doesn’t study French. )
六、如何強調雙賓語
無論強調哪個賓語,都必須根據動詞的搭配關系,加上to或for。如:
原句:He gave Mary a pen.
強調直接賓語:It was Mary that he gave a pen to.
強調間接賓語:It was a pen that he gave to Mary.
七、強調結構作賓語時的語序
要與陳述句語序相同。如:
I don’t know where it is that he has gone. 我不知道他去哪里了。
八、強調結構與類似句型的區別
判斷是否是強調結構的方法是:去掉it is/was和that后,剩余部分(經調整后) 是否依然是個完整的句子,若是,就是強調結構,否則就不是。
It is a pity that you could not come. 真遺憾,你不能來。(去掉It is和that后,句子不成立,是形式主語句型)
It was at ten that he got home. 他是十點回到家的。(去掉it was和that后,原句可調整為He got home at ten. 句子完整正確,故這是強調結構)