1、2012高考英语考前10天语法过一遍
十三、强调句
强调的类别
说 明
例 句
It is (was) +被强调部分+that(who)…
为了强调句子的某一成分（通常是主语、宾语或状语），常用强调结构：
It is (was) +被强调部分+that(who)…
表示强调的it在这种结构的
句子中作主句的主语。
原始句：Last night I saw a film in the Youth Palace.
强调主语：It was I that (or: who) saw a film in the Youth Palace last night.
强调宾语：
2、It was a fiml that I saw in the Youth Palace last night.
强调地点状语：It was in the Youth Palace that I saw a film last night.
强调时间状语：It was last night that I saw a film in the Youth Palace.
一般讲，原句的谓语动词如果是现在或将来各种时态，用It is…that (who)…；如果原句谓语动词是过去各种时态，则用It was… that(who)…。
注意点
①在强调主语时，that后的谓语动词要与被强调者
3、保持人称和数的
It is I who am a teacher.
②即使被强调的主语是复数，主句中的谓语动词也用单数
It is they who often help me with my lessons.
③在强调时间、地点、原因、或方式状语时，不要用when,where,why
或 how ，而用that
It was because her mother was ill that she didn't go with us.
④在强调not … until 结构中由 until 短语（或从句）表示的时间状语时，
要用固定的强调句型
It is(was) not u
4、ntil ...that...。that 从句中的谓语动词用肯定式。
My father didn't come home until 12 o'clock last night.
It was not until 12 o'clock last night that my father came home.
⑤在强调一般疑问句中的某一成分时，主句要用一般疑问句的语序：
把is/ was提到it前面。
Did this happen in Beijing?
Was it in Beijing that this happened?
⑥特殊疑问句中只有疑问词可以强调，其强调结构是
5、被强调部分（通
常是疑问代词或疑问副词）+ is/was + it + that/ who + 其它部分?"
Where were you born?
Where was it that you were born?
⑦not …until…句型的强调句
句型为：It is/ was not until + 被强调部分 + that + 其它部分
原始句：He didn’t go to bed until/ till his wife came back.
强调句：It was not until his wife came back that he went to bed.
6、
此句型只用until，不用till。但如果不是强调句型，till, until可通
用；因为句型中It is/ was not … 已经是否定句了，that后面的从句
要用肯定句，切勿再用否定句了。
谓语动词的强调
It is/ was … that …结构不能强调谓语，如果需要强调谓语时，用助动词do/ does或did。
Do sit down. 务必请坐。
He did write to you last week.上周他确实给你写了信。
Do be careful when you cross the street.
过马路时，务必（千万）要小心啊！
此种强调只用do/does和did ，没有别的形式；过去时用did，后面的谓语动词用原形。
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