CNN news 2010-11-06 加文本

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.An important thing to keep in mind: The new members of Congress who were elected Tuesday, they aren't starting their new jobs just yet.

keep in mind记住

例句：I'll keep your advice in mind.
      我要把你的劝告记在心里。

3.And some experts said that the Tea Party movement was responsible for the big shift in the House, too.

be responsible for为...负责,形成...的原因

例句：He is responsible for composing an opera.
      他负责编写一部歌剧。