考点解读
1．强调句型的一般疑问句结构为：“Is /Was it+ 被强调部分＋that＋句子其余部分?”
例1．Was it during the Second World War ____ he died? (MET88)
A. that B. while C. in which D. then
解析：此句为强调句的一般疑问句。强调时间状语，故选A。
例2．Was _____that I saw last night at the concert?(上海97)
A. it you B. not you C. you D. that yourself
解析：此句也是强调句的一般疑问句。强调宾语，故选A。
例3．--- Wasn't it Dr. Wang who spoke to you just now? 　　 --- ______. (上海96)
A. I didn't know he was　 B. Yes, it was
C. No, he wasn't　 D. Yes, he did
解析：此句为强调句的一般疑问句的否定形式。其回答有两种可能：“Yes, it was”或“No, it wasn't”，故选B.
2．强调句的特殊疑问句结构为：特殊疑问词＋is/was it that...？注意在强调句的疑问句型中，强调标志that/who后只能使用陈述语序。
例4． Why! I have nothing to confess. _____ you want me to say?(上海04)
A. What is it that B. What it is that
C. How is it that D. How it is that
解析：此题考查强调句中强调疑问词时语序的排列。这是一个特殊疑问句,say后面缺少宾语，所以用what ,故选A .
例5．I have always been honest and straight forward, and it doesn't matter ____ I am making to (广东04)
A who is it B who it is C it is who D it is whom
解析: 此题考查强调句中强调疑问词时语序的排列(此处省略了that).这是一个特殊疑问句,考查被强调部分充当宾语的结构。其语序应遵循宾语从句的语序，即陈述语序。另外，在此处是做to的宾语，应用宾格whom，但在通常情况下，也可以用who代替whom ，故选B.
3．强调主语、宾语。
例6．It is these poisonous products ____ can cause the symptoms of the flu, such as headache and aching muscles. (NMET03)
A. who B. that C. how D. what
解析：此题强调主语these poisonous products. 把it is……that去掉，句意仍完整。故选B.
例7．It was how the young man had learned five foreign languages ______ attracted the audience's interest.
A. so that B. that C. what D. in which
解析：此题强调主语从句how the young man had learned five foreign languages。把it was……that去掉，句意仍完整。故选B.
例8．It was the ability to do the job ____ matters not where you come from or what you are. (NMET2000)
A. one B. that C. what D. it
解析：本题强调主语the ability to do the job.把It was……that去掉，句意仍完整。故选B。
4．强调状语 强调时间、地点、原因或方式状语时，要用that，不能用when, where, why或how。
例9．It was about 600 years ago ____ the first clock with a face and an hour hand was made. (NMET97)
A. that B. until C. before D. when
解析：这是对时间状语about 600 years ago的强调，故选A
例10．It was after he got what he had desired ___he realized it was not so important.(辽宁06)
A.that B.when C.since D. as
解析：这是对时间状语从句after he got what he had desired的强调，故选A.
例11．It was only when I reread his poems recently ____ I began to appreciate their beauty. (NMET98)
A. until B. that C. then D. so
解析：本句强调时间状语从句 when I reread his poems recently，故选B。
例12．It was because of bad weather ____ the football match had to be put off. (上海03春)
A. so B. so that C. why D. that
解析：本句强调原因状语because of bad weather, 故选D。在强调原因状语从句时，只能强调由because所引导的从句。
例13．It was where there had been a theatre ____ they built a new modern school.
A. where B. in which C. that D.so
解析：本句强调地点状语从句where there had been a theatre.故选C。
例14．It was only with the help of the local people ___ .（上海春04）
A.was the mountain climber rescued
B.that the mountain climber was rescued
C.when the mountain climber was rescued
D.then mountain climber was rescued
解析：本句强调方式状语only with the help of the local People.故选B
例15．It was in the book store ____ I met your brother the other day.(上海90）
A．where B.that C.in which D.in that
解析：本句强调地点状语in the book store.故选B.
特别提示：对“not...until...”结构的强调，要用“It is/was not until...that...”这一固定句型。由于否定已经前移，that后只能用肯定形式。同时要注意不能使用倒装语序。
例16．It was not ____ she took off her dark glasses ____ I realized she was a famous film star. (NMET92)
A. when; that B. until; that
C. until; when D. when; then
解析：此题强调until引导的时间状语从句until she took off her dark glasses，要将not until放在一起置于It was/is之后。故选B.
例17．It was ______ back home after the experiment. (湖北04)
A. not until midnight did he go
B. until midnight that he didn't go
C. not until midnight that he went
D. until midnight when he didn't go
解析：此题强调until引导的时间状语until midnight，要将not until放在一起置于It was/is之后。在强调句型中不用倒装语序。故选C.