BBC news 2009-07-02 加文本

1.A senior official said it was important that a diplomatic solution was explored before he returned to Honduras.

it强调句型

It+be+被强调部分+that(强调部分指人做主语时时用who，指人做宾语时用whom)+句子的其他部分。

例如：

Mary met an old beggar in the street yesterday.

It was Mary who/that met an old beggar in the street yesterday.

(强调主语)

It was an old beggar whom/that Mary met in the street yesterday.(强调宾语)

It was yesterday that Mary met an old beggar in the street.(强调时间状语)

It was in the street that Mary met an old beggar yesterday.(强调地点状语)

注意：it强调句型不能强调句子的谓语。

2.The newly installed government in Honduras has rejected international calls to reinstate the deposed President Manuel Zelaya who says he will return home at the weekend after being rejected from the country in a coup last Sunday.

这句话的主干是The newly installed government in Honduras has rejected international calls。to reinstate the deposed President Manuel Zelaya是call的主语内容，不定时做后置定语。who says he will return home at the weekend是定语从句，修饰Zelaya。after being rejected是状语。

3.The British government says it's checking reports that the Iranian authorities have released another Iranian member staff of the British embassy in Teheran who is being held for alleged involvements in the post-election violence.

The British government says是主语和谓语，后面是that引导的定语从句。who is being held for alleged是定语从句，修饰Iranian member staff。