常見的強(qiáng)調(diào)句結(jié)構(gòu)是it 引導(dǎo)的句子。
It is (was) 被強(qiáng)調(diào)部分+ that (who) + 句子其他部分。
此結(jié)構(gòu)強(qiáng)調(diào)的成分僅限于主語，賓語和狀語。
It is from the sun that we get light and heat.
It was not until I had read your letter that I understood the true state of affairs.
使用此句型時, 應(yīng)注意以下幾點(diǎn)。
(1) 一般情況用It is(was)……that…如:
He read three books in the library yesterday.
我們分別可以強(qiáng)調(diào)主語、賓語、地點(diǎn)狀語和時間狀語。如:
It was he who(that)read three books in the library yesterday. (強(qiáng)調(diào)主語)
It was three books that he read in the library yesterday. (強(qiáng)調(diào)賓語)
It was in the library that he read three books yesterday. (強(qiáng)調(diào)時間狀語)
(2) 當(dāng)被強(qiáng)調(diào)部分指人時, 可用that, 也可用who; 指物時, 只用that, 如:
It was Tom who(that)I met last week.
It is a new boke that his brother wants to buy.