It is/was + 被強調部分 +that 子句" 這種強調句型是用來加強語氣使用，目的是強調句中的某個部分。被強調的部分若是指人，則可用 who 或者 whom 來代替 that。這種句型中的 "it" 沒有實質意義，只是用來改變句子結構，使句子的某一成分獲得強調。所強調的部分可以主詞、受詞、副詞、補語等。在翻譯的時候，可在被強調部分之前加上 「就是，正是，是」等詞來表示強調。
原句:Columbus discovered America in 1492.
強調句: Columbus discovered America in 1492.
you are to blame. 強調you
It is the artist that/who drew the picture.
It is I who/that love you.
It is we that/whom you love.
It is in the park I met Mary.
It is the park I met Mary.
It is because he hated me that I left.
1.Where was＿＿you picked up the wallet﹖Just near the school gate.
(A) it (B) it that(C) the place(D) the place that
2. I must find out why＿＿so many students made the same mistake.
(A)is it that (B)was it which (C) it is what (D) it was that
3. Is it in the factory＿＿you visited last week＿＿＿＿this kind of car is made﹖
(A)X ;that (B) where;when (C) where;that (D)X; when
4. It was because of bad weather＿＿＿＿＿＿the football match had to be put off.
(A)so(B) so that (C) why (D)that
5.It was his remarks＿＿＿left me wondering about his real purpose.
(A) which (B) what (C) where (D)that
6.Was it in 1969＿＿the American astronaut succeeded＿＿landing on the moon?
(A)when/on (B) that/on (C) when/in (D)that/in
7.It was not until 1920＿＿＿＿＿＿regular radio broadcasts began.
(A) while (B) which (C) that (D)since
8._____ is a fact that English is being accepted as an international language.
(A)There (B) This (C) That (D) It
9._____was in 1979＿＿＿I graduated from the university.
(A) Thatthat (B) Itthat (C) Thatwhen (D)Itwhen
10. It was for this reason＿＿＿her uncle moved out of New York and settled down in a small village.
(A)which(B) why (C) that(D) how
11. It is the protection for the trees＿＿＿＿really mattersrather than how many trees are planted.
(A) what (B) that (C)X (D)which
12.＿＿the people have become the master of their own country＿＿＿＿＿＿＿science can really serve the people.
(A)It is only then；that (B) It was that；when
(C) It is only when；that(D) It was when；then
13. It was＿＿＿I met Mr. Green in Shanghai.
(A)ten years since (B) many years ago that
(C) five years until (D)Two months when