2022届高考英语复习：强调句结构与用法学案（含答案）
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| 名称 | 2022届高考英语复习：强调句结构与用法学案（含答案） |  | |
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| 更新时间 | 2022-04-05 20:39:59 | ||
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强调句结构与用法
强调句（The Emphatic Pattern）是一种修辞，是人们为了表达自己的意愿或情感而使用的一种形式。通过各种方式对句子中的某个部分进行强调，从而起到修辞的作用。使用时要注意以下几点：
1.强调句型可以用来强调主语、宾语（包括介词宾语）和状语。其中的it本身没有词义。强调句中的时态只用两种，一般现在时和一般过去时。原句谓语动词是一般过去时、过去完成时和过去进行时，用It was …… ，其余的时态用It is …… .
2.强调句中的连接词一般只用who（指人）或that（可指物，也可指人）。若被强调的是状语，也只能用that，而不能用when或者where。而且连接词不能省略。如： It was in the park that he met an old friend yesterday.（虽然强调的是地点，但不能用where。）
3.强调句子的主语时，that或who之后的谓语动词的人称和数要与它前面被强调的名词或代词一致。如： It is Mary and Tom who often do good deeds.
一、强调谓语动词
用助动词do/does/did进行谓语动词的强调。比较简单本文不再赘述。
He does love his car.
二、强调其他成分
（一） 基本结构
It is/was+被强调部分（通常是主语、宾语或状语）+that/ who（当强调主语且主语指人）+句子剩余部分。
此结构中的It is/was常常翻译为：正是/恰好/正好…….
例如：将下面的句子按要求变成强调句。
They will have a meeting tomorrow.
→It is they who/that will have a meeting tomorrow. （强调主语）
→It is a meeting that they will have tomorrow.（强调宾语）
→ It is tomorrow that they will have a meeting.（强调状语）
由此我们可以总结出判断一个句子是否是强调句的方法是：如果将句中的It is /was…that／who. . . 去掉，经整理后还是一个完整的句子，那么就是强调句。否则，就不是。再如：It was in today's newspaper that we found the news.后，句子可以整理为：We found the news in today's newspaper. 这是一个完整的句子，故本句是强调句。
You are waiting at a wrong place. It is at the hotel ______ the coach picks up tourists.
A. who B. which C. where D. that
解析 D。句意：你在一个错误的地方等待。大客车是在旅店接送游客的。将句中的It is…that. . . 去掉，经整理后还是一个完整的句子The coach picks up tourists at the hotel，这句话强调的是地点状语at the hotel。故选D。
（二）从句强调句
1、用主语从句、时间状语从句、条件状语从句等作为被强调的部分。
It was only when I reread his poems that I began to appreciate their beauty.
例：_______ is our belief that improvements in health care will lead to a stronger, more prosperous economy.
A. As B. That C.This D.It
解析：首先我们判断一个句子是否是强调句的方法是：如果将句中的It is /was…that／who. . . 去掉，经整理后还是一个完整的句子，那么就是强调句。此句去掉后为our belief improvements in health care will lead to a stronger, more prosperous economy.这个our belief 放在句中的任何位置都不合适，因此我们它不是强调句。这时，我们想到It 做形式主语：有时候句子的主语过长，这样会引起头重脚轻，我们就用it做形式上的主语，而把真正的主语放在后面。比如：To learn English is difficult. 我们可以把To learn English 用it来代换做形式上的主语，把真正的主语To learn English 放在后面，就变成了：It is difficult to learn English.It 做形式主语常用于以下句型：It is +adj./n (for sb)to do sth.It is no use/good in doing sth.等等，因此这个句子就是that引导的主语从句，而it 就是形式主语。所以答案选D.
2) It is What you do rather than what you say______ matters.
A.that B.what C.which D. This
解析：根据句意：做什么比说什么更重要。matter(作名词时，意为“事情”；作动词时，意为“重要” ) 我们根据判断一个句子是否是强调句的方法得知，此句为完整的句子。是强调主语从句的，所以本题选：A.
3) It was after he got what he had desired _______he realized it was not so important.A.that B.when C.since D.as
解析：根据句意和判断强调句的方法可知，此题为强调时间状语从句，因此答案选A.
2、重、难点：until 和not until的强调句
例：I waited until my mother came back. (变成强调句)
→It was until my mother came back that I waited.
I went to bed until my mother came back. （×）
这个句子就不成立了，因为until后面接时间段，而went to bed 是非延续性动词，所以这个句子就不成立了。为了解决这一矛盾，只需要在非延续动词前面加not即可。故就出现了
not… until。
I didn’t go to bed until my mother came back.（√）
直到我妈妈回来，我才上床睡觉。
现在我们可以总结如下：
Until引导的时间状语从句，主句的谓语动词是延续性的。
Not…until 引导的时间状语从句，主句的谓语动词是非延续性的。
而not...until 的强调结构与until的不同，其基本句型为：
It is (was) not until (时间状语) that (不用否定)
例：They didn't start until the rain stopped. (变成强调句)
→It was not until the rain stopped that they started.
例：I didn’t go to bed until my mother came back. (变成强调句)
→It was not until my mother came back that I went to bed.
例1：It was not __________ he took off his dark glasses __________ I realized he was a famous singer.
A. when，that B. until，that C. until，when D. when，then
此题为not until引导的时间状语从句的强调句型， 故选B.意为：直到他摘下眼镜，我才认出他是著名的歌手。
例2：It______ we had stayed together for a couple of weeks_____ I found we had a lot in common.
A was until; when B was until; that C wasn't until; when D wasn't until; that
解析：根据句子结构我们排除A和C,因为不是强调句。根据until和not …until的主句谓语动词延续和非延续之分，判断found为非延续动词，故选择D。
例3：It was until last year that he_____________.
A. left school for a new start
B. came to realize the importance of learning English
C. worked as an English teacher at a middle school
D. set out to build a new house of his own
解析：根据句子结构我们排除A和C,因为不是强调句。根据until和not …until的主句谓语动词延续和非延续之分，判断主句动作应为延续动词，故选择C。其他选项均为非延续动词。
练习：
1. It was not until midnight ________ the noise of the street stopped.
A. that B. this C. since D. at which
2. It was not _______1920 _______ regular radio broadcast began.
A. for，that B. until，that C. for，when D. until，when
3. It was not _______ you had explained how ________ I managed to do it.
A. for，that B. until，that C. for，when D. until，when
4.It ______ we had stayed together for a couple of weeks _______ I found we had a lot in common.
A. was until; when B. was until; that C. wasn’t until; when D. wasn’t until; that
5. It was not until she got home _______ Jennifer realized she had lost her keys.
A. when B. that C. where D. before
答案：ABBDB
3、知识拓展： not …until 的倒装句强调结构。
Not until+从句/表时间的词+助动词+(主句)主语+谓语+其他.
例如：
It was not until my mother came back that I went to bed.
→Not until my mother came back that did I go to bed.
注意：该强调句在进行倒装时，主句的语序要变化，而从句的语序是不变的。
例：_________the catastrophe happened that the local government realized_______ the importance
of substantial development.
A. It was until B. Not until C. Until D. It was not until
解析：根据主句谓语动词的结构可以排除B和C,因为他们没有发生倒装，现在剩下A 和D,根据主句谓语动词的非延续性，可以确定此题应选择D.
4、定语从句的强调句型
我们看下面的句子：
The man left his company which was set up three years ago.现在我想强调一下这个定语从句怎么做呢？这种强调对不对？
It was which was set up three years ago that the man left his company. （×）
为什么这样强调是错误的？因为定语从句是形容词性从句，翻译为：….的，不是完整的成分，所以在强调定语从句时需要把先行词和定语从句一块强调。
It was his company which /that was set up three years ago that the man left. （√）
注意：定语从句中会含有关系代词that,并且强调句中也含有that.此时要区分，第一个that是定语从句的，第二个that是强调句的。
例1：Could it be in the room__________ we had a talk last night_________ you lost your keys A.that,where B.in which,where C.where,that D.where,where
解析：根据定语从句的可以排除A，第二空根据判断一个句子是否是强调句的方法是：如果将句中的It is /was…that／who. . . 去掉，经整理后还是一个完整的句子，那么就是强调句。该句还原为：You lost your keys in the room where we had a talk last night.因此选C.
例2：It was from only a few supplies that she had bought in the village_________ the hostess cooked such a nice dinner.
A.where B. that D.which C.when
解析：第一个that,是定语从句，第二个that是强调句。故选B.
练习：
It was in the village_______ he once lived_________ he got his junior education.
A.that,where B.where,that C.which,where D.where,which
Was it form the lake_________he often went fishing ________he saved the drowning girl
A.that;that B.where;where C.where;that D.that;where
答案：BC
（三）疑问句的强调句
特殊疑问句形式的强调句可视为对陈述句强调中的被强调成分提问得来，如对It was in 1985 that he was born 这一句中的in 1985提问，即得到When was it that he was born 因此我们可以总结出其结构为：
疑问词+ is (was) it + that +句子的其他成分，特殊疑问词即是被强调的成分。
接下来我们分析下疑问句的强调结构是怎么规定的。
Who gave him the book (变强调句)
→It was who that gave him the book 我们一看这个句子就不符合语法要求，疑问句中疑问词必须放在句首，并且此句为陈述语序不可能用问号结尾，故为了符合语法要求，我们将其变形为下句：
→Who was it that gave him the book
练习：
1、How does he go to school every day (变强调句)
2、Where did you find your wallet yesterday (变强调句)
3、——_________that he managed to get the information
——Oh, a friend of his helped him.
A. Where was it B. What was it C. How was it D.Why was it
4、I just wonder_________ that makes him so excited.
A why it does B what he does C how it is D what it is
5、__________is it________ has made Peter__________ he is today
A. What;that;that B. That;that;what C. What;what;that D.What; that; what
6、I've already forgotten___________ you put the dictionary.
A.that it was there B.where was it that C.that where it was D. where it was that
答案：1、How is it that he goes to school every day
2、Where was it that you found your wallet yesterday
3、C 4、D(注意宾语从句的语序)5、D 6、D
（四）强调句型与三大从句的辨析
1. 与主语从句的区别
强调句型去掉it is/was和that之后，句子结构仍然完整，而主语从句则不能。
It’s there that the accidents often happen. （强调句）
It is a fact that English is being accepted as an international language. （主语从句）
2. 与定语从句的区别
强调句中that没有意义，且不做任何成分，而定语从句中that为关系代词，在从句中充当主语、宾语或表语。
It is novels that Miss Wang enjoys reading. （强调句）
It is a question that needs careful consideration. （定语从句）
3. 与时间状语从句的区别
强调句型去掉it is/was和that之后，句子结构仍然完整，而it is ... when ...中，it指代时间。
It was at six o’clock that I got up today. （强调句）
It was six o’clock when I got up today. （状语从句）
例1：－－Do you still remember where we met for the first time
－－Of course. It is in the hotel ________you stayed.
A.that B.where C.which D.when
解析：此题很容易误选A,因为A 选项符合语法，但是不符合题意，根据句意：你记得我们第一次在哪见面的？回答如果是强调句的话，就翻译为：你正好呆在馆。与题意不符，因此应选B.答语为：当然了，就在你住的宾馆。
例2：It was 7 o'clock ________we arrived at the cinema.
A.when B.that C.since D.before
解析：考点是连词用法。 本题易误选为B. that. 其实本句不是强调句。若是，去掉It be… that还应是一个完整的句子。而本句去掉 'It was…that'，只剩下7 o'clock we arrived at the cinema. 不成句。因此本句不是强调句。记住以下三个句型：
① It is /was +时间+ since从句（过去时）… 其中is<---> has been was <---> had been.
自从……已经多长时间了。
②It was +时间段+before从句（过去时） ……..之后，才……
It was 5 years before he found his lost sister.
5年之后，他才找到他失踪的妹妹。
③It was +时间点+when从句（过去时） 当……..时，那个时候是…….
It was evening when he found his lost sister.
当他找到他失踪的妹妹时，那时已经晚上了。
例3：It is ten years ___ Miss Green returned to Canada.
A. that B. when C. since D. as
解析： 答案C. 考点是连词用法。 本题易误选为A. that. 其实本句不是强调句。若是，去掉It be… that还应是一个完整的句子。而本句去掉 'It is…that'，只剩下ten years Miss Green returned to Canada. 不成句。因此本句不是强调句。
练习：
1、 That was really a splendid evening. It's years__________ I enjoyed myself so much.
A.when B.that C.before D since
2、 Was it in the room ________Mr. Johnson lived_______ the exhibition was held
A that.that B where where C that where D where that
3、---Where did you get to know her
-----It was on the farm________ we worked.
A.that B.there C.which D.where
4、It was at the very beginning_______ Mr. Fox made the decision_______ we should send more firefighters there.
A.when;which B.that;what C.then;so D .that; that
5、Is_____ three hour's_______ the boy_________ family is poor to come to school on foot
A.it;that;whose B.it;that it takes;whose C.it for;that it takes;whose D.it;when;that;
6、I really don't know_________I had my money stolen.
A. when was it that B. that it was when C.where it was that D.it was where that
7、It was the training_________he had as a young man_________made him such a good engineer.
A.what;that B.that;what C.that which D.which;that
8、Do you know________ that made it possible for them to continue their project
A. what it was B. what was it C. it was what D. it what
9、Not until he left his home________ to know how important the family was for him.
A did he begin B had he begun C he began D he had begun
答案：DDDDBCDAA
强调句（The Emphatic Pattern）是一种修辞，是人们为了表达自己的意愿或情感而使用的一种形式。通过各种方式对句子中的某个部分进行强调，从而起到修辞的作用。使用时要注意以下几点：
1.强调句型可以用来强调主语、宾语（包括介词宾语）和状语。其中的it本身没有词义。强调句中的时态只用两种，一般现在时和一般过去时。原句谓语动词是一般过去时、过去完成时和过去进行时，用It was …… ，其余的时态用It is …… .
2.强调句中的连接词一般只用who（指人）或that（可指物，也可指人）。若被强调的是状语，也只能用that，而不能用when或者where。而且连接词不能省略。如： It was in the park that he met an old friend yesterday.（虽然强调的是地点，但不能用where。）
3.强调句子的主语时，that或who之后的谓语动词的人称和数要与它前面被强调的名词或代词一致。如： It is Mary and Tom who often do good deeds.
一、强调谓语动词
用助动词do/does/did进行谓语动词的强调。比较简单本文不再赘述。
He does love his car.
二、强调其他成分
（一） 基本结构
It is/was+被强调部分（通常是主语、宾语或状语）+that/ who（当强调主语且主语指人）+句子剩余部分。
此结构中的It is/was常常翻译为：正是/恰好/正好…….
例如：将下面的句子按要求变成强调句。
They will have a meeting tomorrow.
→It is they who/that will have a meeting tomorrow. （强调主语）
→It is a meeting that they will have tomorrow.（强调宾语）
→ It is tomorrow that they will have a meeting.（强调状语）
由此我们可以总结出判断一个句子是否是强调句的方法是：如果将句中的It is /was…that／who. . . 去掉，经整理后还是一个完整的句子，那么就是强调句。否则，就不是。再如：It was in today's newspaper that we found the news.后，句子可以整理为：We found the news in today's newspaper. 这是一个完整的句子，故本句是强调句。
You are waiting at a wrong place. It is at the hotel ______ the coach picks up tourists.
A. who B. which C. where D. that
解析 D。句意：你在一个错误的地方等待。大客车是在旅店接送游客的。将句中的It is…that. . . 去掉，经整理后还是一个完整的句子The coach picks up tourists at the hotel，这句话强调的是地点状语at the hotel。故选D。
（二）从句强调句
1、用主语从句、时间状语从句、条件状语从句等作为被强调的部分。
It was only when I reread his poems that I began to appreciate their beauty.
例：_______ is our belief that improvements in health care will lead to a stronger, more prosperous economy.
A. As B. That C.This D.It
解析：首先我们判断一个句子是否是强调句的方法是：如果将句中的It is /was…that／who. . . 去掉，经整理后还是一个完整的句子，那么就是强调句。此句去掉后为our belief improvements in health care will lead to a stronger, more prosperous economy.这个our belief 放在句中的任何位置都不合适，因此我们它不是强调句。这时，我们想到It 做形式主语：有时候句子的主语过长，这样会引起头重脚轻，我们就用it做形式上的主语，而把真正的主语放在后面。比如：To learn English is difficult. 我们可以把To learn English 用it来代换做形式上的主语，把真正的主语To learn English 放在后面，就变成了：It is difficult to learn English.It 做形式主语常用于以下句型：It is +adj./n (for sb)to do sth.It is no use/good in doing sth.等等，因此这个句子就是that引导的主语从句，而it 就是形式主语。所以答案选D.
2) It is What you do rather than what you say______ matters.
A.that B.what C.which D. This
解析：根据句意：做什么比说什么更重要。matter(作名词时，意为“事情”；作动词时，意为“重要” ) 我们根据判断一个句子是否是强调句的方法得知，此句为完整的句子。是强调主语从句的，所以本题选：A.
3) It was after he got what he had desired _______he realized it was not so important.A.that B.when C.since D.as
解析：根据句意和判断强调句的方法可知，此题为强调时间状语从句，因此答案选A.
2、重、难点：until 和not until的强调句
例：I waited until my mother came back. (变成强调句)
→It was until my mother came back that I waited.
I went to bed until my mother came back. （×）
这个句子就不成立了，因为until后面接时间段，而went to bed 是非延续性动词，所以这个句子就不成立了。为了解决这一矛盾，只需要在非延续动词前面加not即可。故就出现了
not… until。
I didn’t go to bed until my mother came back.（√）
直到我妈妈回来，我才上床睡觉。
现在我们可以总结如下：
Until引导的时间状语从句，主句的谓语动词是延续性的。
Not…until 引导的时间状语从句，主句的谓语动词是非延续性的。
而not...until 的强调结构与until的不同，其基本句型为：
It is (was) not until (时间状语) that (不用否定)
例：They didn't start until the rain stopped. (变成强调句)
→It was not until the rain stopped that they started.
例：I didn’t go to bed until my mother came back. (变成强调句)
→It was not until my mother came back that I went to bed.
例1：It was not __________ he took off his dark glasses __________ I realized he was a famous singer.
A. when，that B. until，that C. until，when D. when，then
此题为not until引导的时间状语从句的强调句型， 故选B.意为：直到他摘下眼镜，我才认出他是著名的歌手。
例2：It______ we had stayed together for a couple of weeks_____ I found we had a lot in common.
A was until; when B was until; that C wasn't until; when D wasn't until; that
解析：根据句子结构我们排除A和C,因为不是强调句。根据until和not …until的主句谓语动词延续和非延续之分，判断found为非延续动词，故选择D。
例3：It was until last year that he_____________.
A. left school for a new start
B. came to realize the importance of learning English
C. worked as an English teacher at a middle school
D. set out to build a new house of his own
解析：根据句子结构我们排除A和C,因为不是强调句。根据until和not …until的主句谓语动词延续和非延续之分，判断主句动作应为延续动词，故选择C。其他选项均为非延续动词。
练习：
1. It was not until midnight ________ the noise of the street stopped.
A. that B. this C. since D. at which
2. It was not _______1920 _______ regular radio broadcast began.
A. for，that B. until，that C. for，when D. until，when
3. It was not _______ you had explained how ________ I managed to do it.
A. for，that B. until，that C. for，when D. until，when
4.It ______ we had stayed together for a couple of weeks _______ I found we had a lot in common.
A. was until; when B. was until; that C. wasn’t until; when D. wasn’t until; that
5. It was not until she got home _______ Jennifer realized she had lost her keys.
A. when B. that C. where D. before
答案：ABBDB
3、知识拓展： not …until 的倒装句强调结构。
Not until+从句/表时间的词+助动词+(主句)主语+谓语+其他.
例如：
It was not until my mother came back that I went to bed.
→Not until my mother came back that did I go to bed.
注意：该强调句在进行倒装时，主句的语序要变化，而从句的语序是不变的。
例：_________the catastrophe happened that the local government realized_______ the importance
of substantial development.
A. It was until B. Not until C. Until D. It was not until
解析：根据主句谓语动词的结构可以排除B和C,因为他们没有发生倒装，现在剩下A 和D,根据主句谓语动词的非延续性，可以确定此题应选择D.
4、定语从句的强调句型
我们看下面的句子：
The man left his company which was set up three years ago.现在我想强调一下这个定语从句怎么做呢？这种强调对不对？
It was which was set up three years ago that the man left his company. （×）
为什么这样强调是错误的？因为定语从句是形容词性从句，翻译为：….的，不是完整的成分，所以在强调定语从句时需要把先行词和定语从句一块强调。
It was his company which /that was set up three years ago that the man left. （√）
注意：定语从句中会含有关系代词that,并且强调句中也含有that.此时要区分，第一个that是定语从句的，第二个that是强调句的。
例1：Could it be in the room__________ we had a talk last night_________ you lost your keys A.that,where B.in which,where C.where,that D.where,where
解析：根据定语从句的可以排除A，第二空根据判断一个句子是否是强调句的方法是：如果将句中的It is /was…that／who. . . 去掉，经整理后还是一个完整的句子，那么就是强调句。该句还原为：You lost your keys in the room where we had a talk last night.因此选C.
例2：It was from only a few supplies that she had bought in the village_________ the hostess cooked such a nice dinner.
A.where B. that D.which C.when
解析：第一个that,是定语从句，第二个that是强调句。故选B.
练习：
It was in the village_______ he once lived_________ he got his junior education.
A.that,where B.where,that C.which,where D.where,which
Was it form the lake_________he often went fishing ________he saved the drowning girl
A.that;that B.where;where C.where;that D.that;where
答案：BC
（三）疑问句的强调句
特殊疑问句形式的强调句可视为对陈述句强调中的被强调成分提问得来，如对It was in 1985 that he was born 这一句中的in 1985提问，即得到When was it that he was born 因此我们可以总结出其结构为：
疑问词+ is (was) it + that +句子的其他成分，特殊疑问词即是被强调的成分。
接下来我们分析下疑问句的强调结构是怎么规定的。
Who gave him the book (变强调句)
→It was who that gave him the book 我们一看这个句子就不符合语法要求，疑问句中疑问词必须放在句首，并且此句为陈述语序不可能用问号结尾，故为了符合语法要求，我们将其变形为下句：
→Who was it that gave him the book
练习：
1、How does he go to school every day (变强调句)
2、Where did you find your wallet yesterday (变强调句)
3、——_________that he managed to get the information
——Oh, a friend of his helped him.
A. Where was it B. What was it C. How was it D.Why was it
4、I just wonder_________ that makes him so excited.
A why it does B what he does C how it is D what it is
5、__________is it________ has made Peter__________ he is today
A. What;that;that B. That;that;what C. What;what;that D.What; that; what
6、I've already forgotten___________ you put the dictionary.
A.that it was there B.where was it that C.that where it was D. where it was that
答案：1、How is it that he goes to school every day
2、Where was it that you found your wallet yesterday
3、C 4、D(注意宾语从句的语序)5、D 6、D
（四）强调句型与三大从句的辨析
1. 与主语从句的区别
强调句型去掉it is/was和that之后，句子结构仍然完整，而主语从句则不能。
It’s there that the accidents often happen. （强调句）
It is a fact that English is being accepted as an international language. （主语从句）
2. 与定语从句的区别
强调句中that没有意义，且不做任何成分，而定语从句中that为关系代词，在从句中充当主语、宾语或表语。
It is novels that Miss Wang enjoys reading. （强调句）
It is a question that needs careful consideration. （定语从句）
3. 与时间状语从句的区别
强调句型去掉it is/was和that之后，句子结构仍然完整，而it is ... when ...中，it指代时间。
It was at six o’clock that I got up today. （强调句）
It was six o’clock when I got up today. （状语从句）
例1：－－Do you still remember where we met for the first time
－－Of course. It is in the hotel ________you stayed.
A.that B.where C.which D.when
解析：此题很容易误选A,因为A 选项符合语法，但是不符合题意，根据句意：你记得我们第一次在哪见面的？回答如果是强调句的话，就翻译为：你正好呆在馆。与题意不符，因此应选B.答语为：当然了，就在你住的宾馆。
例2：It was 7 o'clock ________we arrived at the cinema.
A.when B.that C.since D.before
解析：考点是连词用法。 本题易误选为B. that. 其实本句不是强调句。若是，去掉It be… that还应是一个完整的句子。而本句去掉 'It was…that'，只剩下7 o'clock we arrived at the cinema. 不成句。因此本句不是强调句。记住以下三个句型：
① It is /was +时间+ since从句（过去时）… 其中is<---> has been was <---> had been.
自从……已经多长时间了。
②It was +时间段+before从句（过去时） ……..之后，才……
It was 5 years before he found his lost sister.
5年之后，他才找到他失踪的妹妹。
③It was +时间点+when从句（过去时） 当……..时，那个时候是…….
It was evening when he found his lost sister.
当他找到他失踪的妹妹时，那时已经晚上了。
例3：It is ten years ___ Miss Green returned to Canada.
A. that B. when C. since D. as
解析： 答案C. 考点是连词用法。 本题易误选为A. that. 其实本句不是强调句。若是，去掉It be… that还应是一个完整的句子。而本句去掉 'It is…that'，只剩下ten years Miss Green returned to Canada. 不成句。因此本句不是强调句。
练习：
1、 That was really a splendid evening. It's years__________ I enjoyed myself so much.
A.when B.that C.before D since
2、 Was it in the room ________Mr. Johnson lived_______ the exhibition was held
A that.that B where where C that where D where that
3、---Where did you get to know her
-----It was on the farm________ we worked.
A.that B.there C.which D.where
4、It was at the very beginning_______ Mr. Fox made the decision_______ we should send more firefighters there.
A.when;which B.that;what C.then;so D .that; that
5、Is_____ three hour's_______ the boy_________ family is poor to come to school on foot
A.it;that;whose B.it;that it takes;whose C.it for;that it takes;whose D.it;when;that;
6、I really don't know_________I had my money stolen.
A. when was it that B. that it was when C.where it was that D.it was where that
7、It was the training_________he had as a young man_________made him such a good engineer.
A.what;that B.that;what C.that which D.which;that
8、Do you know________ that made it possible for them to continue their project
A. what it was B. what was it C. it was what D. it what
9、Not until he left his home________ to know how important the family was for him.
A did he begin B had he begun C he began D he had begun
答案：DDDDBCDAA