It was Tom's mother that / who bought Tom a bicycle on his birthday.

是汤姆的妈妈在汤姆生日那天给他买了辆自行车。

It was yesterday that I met him. 我是昨天见到他的。

在此类强调句中需要注意的是：

1)不管被强调部分是单数还是复数，其前一律用it is / was 而不能用 they are /were

It is the teachers who teach me very well. 这就是教我教得很好的老师。

2)被强调部分指人时，被强调部分可用that /who来指代；被强调部分指物时，被强调部分后只能用that 指代

It is this house that has a beautiful garden. 就是这个房子有一个美丽的花园。

3)强调部分指时间和地点时，被强调部分只能用that 指代，而不能用when, where 等指代

It was yesterday that I entered the school. 我是昨天进的学校。

3.Some passengers spent hours on board grounded planes only to disembark and spent an uncomfortable night in the terminals.

only to只是为了，竟然……

例句：He went to church only to mock.

他去教堂只想嘲笑宗教。

Fascism served only to hasten its destruction.

法西斯主义只是加速了它的毁灭。

4.The current output, at least 2.6 million barrels a day, still falls short of the three million barrels a day the country was producing in the late 1980s.