In a word，all of us need to be concerned about AIDS.

→ ，all of us need to be concerned about AIDS.

(2)完成句子

我们得出的结论是：那个房间当时一定是空的。

We that the room must have been empty.

经典句式

1．Before 1908，when Ford's cars became available to the public，it was only the very rich who could afford to own a car.

1908年福特汽车问世以前，只有非常有钱的人才能买得起汽车。

[归纳拓展]

(1)强调句型的基本结构为：It is/was＋被强调部分＋that/who＋其他部分(若被强调的是人，可用that或who；若被强调的部分是其他时，一律用that)。另外要注意：本句型不能用于强调原句的谓语动词，如要强调谓语动词，可在动词前加do，does或did。

(2)强调句型的一般疑问句结构为：Is/Was it＋被强调部分＋that/who...?

(3)强调句型的特殊疑问句结构为：特殊疑问词＋is/was it＋that...?

(4)对not...until...句型中的时间状语(从句)进行强调时的结构为：It is/was not until＋被强调部分＋that＋其他部分。

[语境助记]

(1)It was I that/who saw her in the park yesterday.

昨天在公园里看见她的是我。

(2)It was yesterday that I saw her in the park.

我是昨天在公园里看到她的。

(3)Bach died in 1750，but it was not until the early 19th century that his musical gift was fully recognized.(2015·重庆)

巴赫于1750年去世，但是他的音乐才能一直到19世纪早期才被完全认可。

[题组训练]

(1)单句语法填空

①It's not doing the things we like，but liking the things we have to do makes life happy.

②Who is that this place belongs to?

(2)句型转换

①He didn't meet the girl he would like to marry until he came back from Africa that year.