這兩個(gè)句型是If it weren’t for…和If it hadn’t been for…，這是兩個(gè)很常用的虛擬語氣句型，也經(jīng)常受到命題人的青睞，其意為“若不是(有)”“要不是有”。如：

If it weren’t for water, no plant could grow. 要是沒有水植物就無法生長。

You wouldn’t be anywhere if it weren’t for Ruth. 若不是有魯思你不會有任何成就。

If it hadn’t been for the doctor, he would have died. 要不是醫(yī)生救了他，他就會死了。

If it hadn’t been for Mary, I might not have understood. 要不是有瑪麗，我可能還不理解。

4. If he had seen you yesterday，he would haveasked you about it.

→Had he seen you yesterday，he would haveasked you about it.

他昨天要是看到了你，他就會問你這事了。

順便說一句，以上移至句首的 had不一定是助動(dòng)詞，如果是實(shí)義動(dòng)詞也可倒裝：

If he had money，he would buy a car.

→Had he money，he would buy a car.

他要是有錢，他就會買一輛小車。

巧顧課外輔導(dǎo)介紹兩種�？嫉奶摂M語氣句型

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快速搜索： 虛擬語氣句型

窗體底端

巧顧課外輔導(dǎo)介紹兩種常考的虛擬語氣句型：If it weren’t for…和If it hadn’t been for…

3. If I could do it，I would.

→Could I do it，I would.

要是我能做此事，我一定會做。

2. If I were you，I would do it at once.

→Were I you，I would do it at once.

假若我是你，我就會馬上做。

1. If he should fail，he would kill himself.

→Should he fail，he would kill himself.

萬一失敗，他就會自殺。

21. The guard said that he would not let him in if he had no pass.

→ The guard said,“I will not let you in if you have no pass.”

虛擬語氣的倒裝形式怎么用?

快速搜索： 虛擬語氣的倒裝形式怎么用 虛擬語氣的倒裝形式

窗體底端

虛擬語氣的倒裝形式怎么用?請看典型考題：

__________ your address，I would have written to you.

A. Did I know B. Were I to know

C. Had I known D. If I should know

此題應(yīng)選 C。這是虛擬語氣的倒裝形式。當(dāng)虛擬條件句中含有 were，had，should，could等動(dòng)詞時(shí)，可以將if省略，然后將 were，had，should，could 等詞移至句首：

20. She told me she had seen a letter on my desk the day before.

→ “I saw a letter on your desk yesterday,” she said to me.

19. I asked one of the boys if there were any mistakes in his homework.

→I asked one of the boys,“Are there any mistakes in your homework?”

18. He asked me how many times I had been to my home town since 2000.

→ He asked me,“How many times have you been to your home town since 2000?”

17. She asked Xiao Wang if that kind of telephone was made in Guangzhou.

→She asked Xiao Wang,“Is this kind telephone made in Guangzhou? ”