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1、第六章：Itsthat/who强调句及it的其他用法强调句的形式比较简单，无非就是将要强调的部分用Itsthat/who夹起来，但是如果和其他的句式想结合就不那么简单了。这也是高考青睐强调句的原因所在。第一节：基本结构Its that/who 是英语中用语法手段对句中除谓语以外的某一成分进行强调的一种方法。它的形式比较简单，只要把要强调的部分夹在Itsthat/who中间，其他部分照抄跟在后面。1. 强调主语。I met Li Ming at the railway station yesterday.It was I that (who) met Li Ming at the railway
2、 station yesterday.2. 强调宾语。I met Li Ming at the railway station yesterday.It was Li Ming that I met at the railway station yesterday.3. 强调地点状语。I met Li Ming at the railway station yesterday.It was at the railway station that I met Li Ming yesterday.4. 强调时间状语。I met Li Ming at the railway station yest
3、erday.It was yesterday that I met Li Ming at the railway station.5. 强调各种从句。He went to the factory at once because he had a lot of work to do. It was because he had a lot of work to do that he went to the factory at one.(原因状语)6强调不定式。I often keep the windows wide open to let the fresh air in.It is to
4、let the fresh air in that I often keep the windows wide open.第二节：应该注意的问题用Itsthat/who结构对句子进行强调时应该注意一下几个问题：1. 这种结构只有一般现在时和一般过去时两种时态。其他的时态很少用这种句式进行强调。It has been four years _ I gave up smoking.A. that. B. since.分析：遇到这种高考题，我们就毫不考虑的选B. since.2. 在强调主语时，that 后的谓语动词要与被强调者保持人称和数的一致。如：It is I who am a teacher
5、.3. 即使被强调的主语是复数，主句中的谓语动词也用单数。换句话说：强调句中不可能出现am, are, were。如：It is they who often help me with my lessons.4. 强调句和it作形式主语的区别。强调句中的Its, that/who在句中只是一种语法手段，没有任何意义，如果去掉不会对句子的意思产生影响，或不会影响句子的完整性。但是，it作形式主语的结构如果去掉句子就不完整。因为that引导主语从句时不能省略，而且is/was在句子中充当谓语（系动词）。It is a good idea that we eat out.分析：如果去掉it is 和
6、that, We eat out said. 很明显时个不完整的句子。5. 强调时间状语的强调句和时间状语从句的区别。时间状语从句中主句和从句都是完整的句子，it指代时间，如果把其中的it, is/was和when去掉，句子将不完整；而强调句则完整。It was 12:00 we went home.A. that B. when. 分析：如果去掉it was和横线，We went home 12:00。很明显这是个错误的句子，缺少介词at. 真确的句子因该是：We went home at 12：00.6. 强调句和as引导的定语从句的区别。这两种句型的区别比较简单， 在定语从句一章有详细讲
7、解，此处不再赘述。总之，区别强调句和其他句式最有效的方法是：去掉it, is/was, that/who或横线后看句子是否完整。如果完整肯定是强调句，不然为其他句式。7. 强调句的反义问句。强调句的反义问句比较简单，只要将它看成it is/was的句子就可以了。It isthat, isnt it?It is notthat, is it?It wasthat, wasnt it?It was not that, was it?第三节：高考常见题型1. 强调句的一般形式。虽然这是最简单的形式，但由于其在英语表达中占有很重要的位置，因此在高考中常常出现。It was in New Zealand
8、 _ Elizabeth first met Mr. Smith. (2008 全国II 20)A. that B. how C. which D. when分析：去掉it was 和横线：Elizabeth first met Mr. Smith in New Zealand. 句子完整。所以A. that。2. 强调句的一般疑问句。强调句虽然简单，但是换成一般疑问句后学生往往无从下手。Was _ that I saw last night at the concert? (1997上海卷)A. it you B. not youC. you D. that yourself分析：方法还是一
9、样：去掉句中的it, was, that再看句子是否完整。如果完整，就是强调句。不完整在从其他的角度分析。I saw you last night at the center. 非常完整。所以A. it you。3. 强调句的特殊问句。可以说这是近年高考最受青睐的题型。它的特点是使用广泛、灵活多变、但有一定的难度，对于高考这类选拔型考试特别适合。它可以以单独的形式出现，也可以与其他的从句形式相配合。下面我们就来看看这种结构。（2）单独的特殊疑问句。格式：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？如：When was it that
10、 you were born?Why! I have nothing to confess. _you want me to say? (2004上海卷)A. What is it that B. What it is thatC. How is it that D. How it is that分析：这是典型的强调句特殊疑问句。根据句意A. What is it that。（2）充当名词性从句的强调句特殊问句。由于这种句型在句子中做了名词性从句，那么话句话说就是陈述语序的特殊问句。格式：被强调部分（通常是疑问代词或疑问副词）+ it is/ was + + that/ who + 其它部分。
11、When asked to explain _ made his lessons so exciting, the teacher kept silent.A. what it is that B. that what it is C. what is it that D. that what is it分析：这道题是强调句用作宾语从句。根据题意A. what it is that。4. It is/was not A but B that这是带有选择性的强调句。当然也可以出现其他的连词，如rather than.有时也可以出现几种变形形式：a. Its A thatnot B.b. Its
12、not A but B thatc. Its A rather than B that d. Its A thatrather than B.It is not who is right but what is right _ is of importance. 2007 重庆卷A. which B. it C. that D. this分析：典型的选择式强调句。所以C. that。5. notuntil的强调。可以说这是高考中出现频率最高的强调句类型。这种强调句比较特殊，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)
13、not until .that. 注意此时原句的notuntil要变成not until ，that 从句中的谓语动词要用肯定式。如： a. My father didnt come home until 12 oclock last night. b. It was not until 12 oclock last night that my father came home.c. I didnt realize she was a famous film star until she took off her dark glasses.d. It was not until she too
14、k off her dark glasses that I realized she was a famous film star. It _ we had stayed together for a couple of weeks _ I found we had a lot in common. 2007 浙江卷A. was until; when B. was until; that C. wasnt until; when D. wasnt until; that分析：标准句型，所以D. wasnt until; that。第四节：it的其他用法1. it可用作人称代词、指示代词、先行词及引导词等。（1）人称代词it，是第三人称单数中性，代表前文已提到过的一件事物。如：a. That vase is valuable. Its more than 200 years old. b. I love swimming. It keeps me fit. 当说话者不清楚或无必要知道说话对象的性别时，也可用it来表示。c. Its a lovely baby. Is it a boy or a girl? it可用来指代团体。如：d. The comm
