強(qiáng)調(diào)句通常用的句式：it is + 被強(qiáng)調(diào)的部分 + that + 句子的其余成分。強(qiáng)調(diào)部分指人的時(shí)候，用who 或者that; 指物的時(shí)候用that。
例1：
It is from the sun that we get light and heat.
被強(qiáng)調(diào)的部分（物）
例2：
It was Sam who knocked down that old man and fled.
被強(qiáng)調(diào)的部分（人）
注意：如何判斷強(qiáng)調(diào)句式？
把一個(gè)句子中的it is …that/who這個(gè)部分去掉，如果剩余的句子仍然是完整的，那么這個(gè)句式就是一個(gè)強(qiáng)調(diào)句。反之則有可能是其他從句。
例如：
It is exciting that we succeeded in launching the satellite.
這個(gè)句子雖然也有it is ….that 的結(jié)構(gòu)，但只要把這個(gè)結(jié)構(gòu)去掉，就可以發(fā)現(xiàn)：剩下的內(nèi)容不能構(gòu)成完整的句子。所以這不是一個(gè)強(qiáng)調(diào)句。在這里It is…that 是不能隨便去掉的，因?yàn)檫@里it 是形式主語(yǔ)。
翻譯示例：
例：______________ （直到他詳細(xì)研究）that the first of the vitamins was identified.
1. 所譯部分為句子的主干，需要強(qiáng)調(diào)句型，表達(dá)方式為it is not until...that
2. 從句為過(guò)去時(shí)，所以主句中也應(yīng)該是過(guò)去時(shí)
3. “詳細(xì)地”表達(dá)方式應(yīng)該是in detail。
答案：It was not until he investigated in detail
實(shí)戰(zhàn)演練：
1. It was not until 1920 __________ regular radio broadcasts began.
A. while B. which C. that D. since
2. She said she would go and she __________ go.
A. didn’t B. did C. really D. would
3. Why was __________ that the old woman was sent to prison?
A. he B. it C. when D. what
4. It is __________ any wonder that his friend doesn’t like watching television much.
A. no B. such C. nearly D. hardly
5. It was the boy__________ had been in prison __________ stole the money.
A. who, where B. that, how C. who, that D. that, which
6. 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
7. —Were all three people in the car injured in the accident?
—No, __________ only the two passengers who got hurt.
A. there were B. it had C. there had D. it was
8. __________ in 1943__________ the harmful smog made its appearance in Los Angeles.
A. Only… that B. It was… then C. That it was… when D. It was… that
9. __________ the 1500’s __________ the first European explored the coast of California.
A. It was until……then B. It was not until …when
C. It is until……that D. It was not until……that
10. It was only with the help of the local guide __________.
A. was the mountain climber rescued B. that the mountain climber was rescued
C. when the mountain climber was rescued D. then the mountain climber was rescued
答案及解析：
1. C 2. B 3. B 4. D 5. C 6. A 7. D 8. D 9. D 10. B
1. 本題考查的是強(qiáng)調(diào)句式。強(qiáng)調(diào)句式由“it is/was + 被強(qiáng)調(diào)成分+that/who…”構(gòu)成。此題強(qiáng)調(diào)的是時(shí)間。
2. 在謂語(yǔ)動(dòng)詞前加do表示對(duì)動(dòng)作的強(qiáng)調(diào)。and連接兩個(gè)并列謂語(yǔ)，其形式應(yīng)一致，故用過(guò)去時(shí)態(tài)。
3. 此題考查的是強(qiáng)調(diào)句的特殊疑問(wèn)句形式。it在此作為形式主語(yǔ)，真正的主語(yǔ)是that從句。
4. 此句是一個(gè)強(qiáng)調(diào)句。根據(jù)題意“他的朋友不怎么喜歡看電視”可知這并沒(méi)有什么可奇怪的，故排除B和C。no后直接加名詞相當(dāng)于not any +名詞，可排除A。故選D。
5. 此題考查的強(qiáng)調(diào)句中含有一個(gè)定語(yǔ)從句。Who引導(dǎo)的定語(yǔ)從句修飾被強(qiáng)調(diào)部分the boy，that引導(dǎo)的從句構(gòu)成強(qiáng)調(diào)句中的真正的主語(yǔ)。當(dāng)被強(qiáng)調(diào)部分是人時(shí)，可以用that和who來(lái)引導(dǎo)從句。
6. 此題考查的強(qiáng)調(diào)句型中包含一個(gè)定語(yǔ)從句。What引導(dǎo)的定語(yǔ)從句，修飾被強(qiáng)調(diào)部分the training，that從句構(gòu)成強(qiáng)調(diào)句中的真正主語(yǔ)。
7. 本題考查的是強(qiáng)調(diào)句式。強(qiáng)調(diào)句式由“it was + 被強(qiáng)調(diào)成分+ who…”構(gòu)成。
8. 本題考查的是強(qiáng)調(diào)句式。強(qiáng)調(diào)句式由“it was + 被強(qiáng)調(diào)成分+that…”構(gòu)成。本句強(qiáng)調(diào)的是時(shí)間。
9. 本題考查的是強(qiáng)調(diào)句式。強(qiáng)調(diào)句式由“it was + 被強(qiáng)調(diào)成分+that…”構(gòu)成。本句強(qiáng)調(diào)的是時(shí)間。not until…意為“直到……才”。
10. 本題考查的是強(qiáng)調(diào)句式。強(qiáng)調(diào)句式由“it was + 被強(qiáng)調(diào)成分+that…”構(gòu)成。從句的語(yǔ)序仍然用陳述語(yǔ)序。
