二．强调句的考查要点

1.使用助动词do，does和did对谓语动词进行强调。

First impressions really do count.

2.运用强调句型来强调除谓语动词以外的其他句子成分。

强调句型的基本句型结构为：It is/was＋被强调部分＋that/who＋其他成分。可用来强调句子的主语、宾语、状语、表语、同位语等成分。在复习强调句型时，要注意以下几个方面：

（1）强调句型中的主谓一致

在强调句型中，当对陈述句中的主语进行强调时，无论被强调的主语是单数还是复数，主句中的谓语动词都要用单数形式It is/was...，同时，that从句中的谓语动词要与被强调的主语在人称和数方面保持一致。

It is my parents that/who often help me get out of trouble.

（2）当对地点状语、时间状语或其他状语从句进行强调时，只能用连接词that，而不能用where，when，why或how等。

It was on August 8,2008 that the 29th Summer Olympic Games were opened in Beijing.

（3）强调句型的疑问句

在强调句中，无论被强调部分是什么句子成分，变为一般疑问句时，都须将主句改为疑问语序，即将“It is/was＋被强调部分＋that＋其他成分”改为“Is/Was it＋被强调部分＋that＋其他成分？”或“疑问词＋is/was it that＋其他成分？”结构。

Was it her failing her exam that made her parents unhappy？

When was it that she changed her mind？

（4）在对not...until...结构中的until时间状语或时间状语从句进行强调时，要将句中的not移至until之前，构成：It is/was not until...that...。注意that从句中的谓语动词要变成肯定形式，而且不再采用倒装语序。

I didn’t realize she was a famous film star until she took off her dark glasses.＝It was not until she took off her dark glasses that I realized she was a famous film star.