句型11
It強調句型
強調句的基本構成：It is/was + 被強調的部分 + who(主要指人時)/that + 其余部分
[注意1]
這種結構可以強調句子的主語、賓語、狀語(包括時間，地點，方式，原因等)，但是不能強調謂語動詞(參考句型15)。
原句的謂語動詞如果是現在或將來時態，用It is…that/who….;
原句的謂語動詞如果是過去時態，用It was…that/who….;
強調時間、地點、原因或方式時不要用when, where或how, 必須用that。
[例句1]
I saw him in the street yesterday afternoon.
→It was I who saw him in the street yesterday afternoon.(強調主語)
→It was in the street that I saw him yesterday afternoon.(強調地點狀語)
→It was yesterday afternoon that I saw him in the street.(強調時間狀語)
→It was him that/who I saw in the street yesterday afternoon.(強調賓語)
[例句2]
He didn’t go to bed until his mother came back.
→It was not until his mother came back that he went to bed.
He didn’t do his homework until his father came back from work.
→It wasn’t until his father came back from work that he did his homework.
[例句3]
Only when you nearly lose someone do you fully realize how much you value him.
→It is only when you nearly lose someone that you fully realize how much you value him.
只有你快要失去某個人時，你才意識到你是多么尊重他。
[例句4]
I was late again because the traffic was very heavy during the rush hour.
→It was because the traffic was very heavy during the rush hour that I was late again.
(強調句中只能強調由because引導的原因狀語從句，because不能換成since, as, for, now that等)
[注意2]強調句的疑問結構
一般疑問句 Is / Was it +被強調部分 +who / that …?
特殊疑問句 特殊疑問詞+is /was +it +who / that…?
What is/was it that…? Who is/was it that…? When is/was it that…?
Where is/was it that…? Why is/was it that…? How is/was it that…?
[例句1]
I saw him in the street yesterday afternoon.
→When was it that you saw him in the street?
→Who was it that you saw in the street yesterday afternoon?
→Where was it that you saw him yesterday afternoon?
[例句2]
I don’t know when he will come back.
→I don’t know when it is that he will come back.(賓語從句疑問詞后用陳述句語序)
-How was it that you got in touch with Mr. Smith? 你是怎么和Smith先生聯系上的?
-Trough a friend of mine. 通過一個朋友。
句型12
(1)、祈使句(表條件)+ or/or else/ otherwise + 主句(表結果)… "否則…，要不然…"
(2)、祈使句(表條件)+ and +主句(表結果)
[例句]
Hurry up, or you’ll be late for class.
Please call me up before you come, otherwise/or else/or we might be out.
你來之前打個電話，否則，我們也許會出去。
Think it over and you will find the answer.
Give him an inch and he will take a mile. 得寸進尺。
Work hard and you will make progress every day. 好好學習，天天向上。
