高考英语强调句型的考查点“It is/was…who/whom/ that…”强调句型是中学阶段所学的极其重要的句型之一，也是每年高考试题考查的重点和热点之一。
在日常运用中，其使用频率也较高，因此，对此结构必须引起高度重视。
概括起来，通常考查的有以下八个方面。
一、考查谓语动词的人称和数的一致性在强调句型中，当强调主语时，其后的谓语动词应和被强调的主语在人称和数上保持一致。
例如：①It is Mary and Tom that often do good deeds.②It is I that am leaving for Beijing next week③It is this teacher who ___ leaving forLondon. It is you who ___ next.A. are; areB. is; areC. are;; isD. is; is解析：经比较分析可知，此题为强调句型，强调的是句子的主语，因此句子的谓语应和主语在人称和数上保持一致。
答案为B。
二、考查who 和that 的选用在强调句型中，若被强调的部分是指人的名词或代词，且在句中作主语或宾语时，用who/ whom或that皆可(whom只作宾语)；若被强调的部分是句子的其它成分，则只能用that,而不能用when，where，why等。
例如：①It was we who/ that held a League meeting in the club yesterday.(强调主语we)②It was him whom/ who/ that I wantto see.(强调宾语him)③It is the ability to do the job that matters not where you come from or what you are.(NMET2000)(强调主语the ability)③It was only when I reread his poems recently that I began to appreciate their beauty.(NMET1998)(强调时间状语从句only when I reread his poems recently)④It was in the bookstore that I met your brother the other day.(强调地点状语in the bookstore)三、考查“not until…”的倒装结构和强调结构的区别大家都知道当not until 置于句首时，句子通常用倒装语序；但在“It is/was not until…that…”句型中，that后的句子结构不能倒装。
例如：①Not until I began to work did I realize how much time I had wasted. (not until…状语从句位于句首，句子倒装)②Not until the child fell asleep did the mother leave the room.③It was not until 1920 that regular radio broadcasts began.(NMET1995)(强调until引导的时间状语从句，句子不倒装)④It was not until she took off her glasses that I realized she was a famous film star.(MET92)四、考查强调结构与主语从句（“Itis/was…that-clause”）的区别强调结构与主语从句（“It is/was…that-clause”）十分相似，但在主语从句中It is/was 后通常用名词或形容词作表语，其中的“It is/was…that-clause”缺一不可（is/was有用）。
强调句型中It is/was后一定是对除谓语动词以外的任何一个句子成分（即主语、宾语或状语）进行强调，如果把强调句式“It is/was…that…”去掉，句子的语法结构仍然成立（is/was无用）。
例如：①It is a fact that English is being accepted as an international language.(NMET1993)(it是形式主语，而真正的主语是that English is being accepted as an international language)②It is true that he won the first prize.(真正的主语是that he won the first prize, it是形式主语)③It was with the great difficulty that the boy gathered the strength to rise.(此句是强调句，强调句子的状语，如果去掉“Itwas…that…”后句子仍然成立，即With great difficulty the boy gathered strength to rise.)④It was in the street that I met him.(去掉“It was…that…”,句子则为：In the street, I met him.此句不论从语法结构还是句意都成立。
)五、考查强调结构与“It be…before…”、“It be…since…”、“It be…when…”等句型的区别(1)掌握强调句型的关键在于把握强调句型的判断标准，即去掉强调句式结构（it is/ was…who/ that…），经过语序相应调整后，原句语法结构和句意仍然正确。
这也是强调句型与定语从句及其它句式的重要区别之一。
例如：①It was because he was ill that he did notcome to see you.(去掉强调句型的句式结构“It was… that…”后，原句仍然成立。
) （2）“It +be +some time +before…”此句型关键在于：①主句为将来时态，before从句为一般现在时态；主句为一般过去时态，before从句通常也为一般过去时态。
②主句肯定结构意义为“时间过多久从句中动作才发生”；否定结构意义为“不久，从句中动作就发生”。
（It 指时间）例如：①It will be more than 100 years before the country begins once again to look as it did before.要过100多年后这个国家才能恢复到以前的样子。
②It was not long before he worked out the problem.没过多久，他便解出了这道题。
（3）“It +be +some time +since…”这个句型表示“自……开始（结束）以来，已经过去多长时间”。
该句型关键要掌握两点：①主句为“It is(has been)+时段”时，since从句通常用一般过去时；主句为“It was(had been)+时段”时，since从句一般为过去完成时。
②当since从句中的谓语动词是延续性动词或表示状态的动词时，则从句所表示的时间是从那个动作或状态结束时算起，即表明这一动作或状态终止有多久了。
例如：①----What was the party like?----Wonderful. It is years since I enjoyed myself so much.(MET1993)(“晚会怎么样？”“很精彩，我已有多年没有那么高兴过了。
”)②Three years has passed since I smoked.(我戒烟已经三年了。
)③It is four days since he was ill.(他已经康复四天了。
)（4）“It +be+时间点+when…”掌握此句型的关键在于：“be”后面是个时间“点”，不是时间“段”，句型意义为“当……时，时间是……”（It 指时间）例如：①It was five o’clock in the afternoon when they climbed up to the top of the mountain.(他们爬上山顶时是下午五点钟。
)②It was 1919 when the May 4th Movement took place.（“五·四”运动爆发是1919年。
）六、考查强调结构与定语从句的区别判断句子结构是否是强调句型可用还原法，即去掉“it is/ was…that…”,再将被强调部分放在句中相应的位置。
不需要添加任何词语句子正确，即为强调句型结构。
否则就是定语从句。
例如：It was October when they finally came back to their hometown.(when引导一个定语从句，修饰先行词October.)It was in October that they finally came back to their hometown.(此句为强调结构，强调句子的时间状语in October,去掉It was …that …,句意和语法结构完全正确) It was the house where I met the youngman.(此句中when引导的是定语从句，修饰先行词the house,在定语从句中作地点状语)It was in the house that I met the youngman.(此句为强调结构，强调句中的地点状语in the house)七、考查强调句型中的结构变化(以一般疑问句、特殊疑问句、名词性从句等形式考查)（1）以一般疑问句的形式考查①Was ____ that I saw last night at the concert?A. it youB. not youC. youD. that yourself比较下句：It was you that I saw last night at the concert.我们可以看出该题干实际上是这个陈述句的一般疑问句形式。
答案应为A。
（2）以特殊疑问句的形式考查②___ is it ___ has made Peter ____ he is today?A. What; that; thatB. That; that; whatC. What; what; thatD. What; that; what本题结构复杂，请看解析：It is perseverance that has made Peter what he is today.对划线部分提问则可得到：What is it that has made Peter what he is today? 显然此题的答案应为D。