1. wish后的賓語從句

　　表示現(xiàn)在不能實(shí)現(xiàn)的愿望,從句的謂語用過去式;表示過去未能實(shí)現(xiàn)的愿望,從句的謂語用had + 過去分詞;表示將來不太可能實(shí)現(xiàn)的愿望,從句的謂語用would + 動(dòng)詞原形。如:

I wish I knew the answer to the question.

我真希望知道這個(gè)問題的答案。

　 (事實(shí)上不知道)

I wish I had not wasted so much time.

我真希望沒有浪費(fèi)這么多時(shí)間。　　　

(事實(shí)是已經(jīng)浪費(fèi)了)

I wish you would go with us tomorrow.

但愿你明天跟我們一起去。

(你去的可能性不大)

2. as if 或as though引導(dǎo)的表語從句和狀語從句

表示與現(xiàn)在事實(shí)相反,從句的謂語用過去式;表示與過去事實(shí)相反,用had +過去分詞;表示與將來事實(shí)可能相反,用would + 動(dòng)詞原形。如:

She looks as if she were sick.

她看起來像病了似的。　　(其實(shí)沒病)

He looks as if nothing had happened to him.

他看上去好像什么事都沒發(fā)生似的。

(事實(shí)是出問題了)

He talks about the book as if he had written it.

他說起那本書來就好像是他寫的。

(書不是他寫的)

如果as if / as though引導(dǎo)的從句所表述的內(nèi)容與事實(shí)相符,應(yīng)用陳述語氣。如:

It looks as if our team is going to win.

看來我們隊(duì)要贏了。

(場(chǎng)上情況表明有可能)

3. if only后的句子

表示現(xiàn)在沒有實(shí)現(xiàn)的愿望,動(dòng)詞用過去式;表示過去沒有實(shí)現(xiàn)的愿望,動(dòng)詞用had+過去分詞；表示與將來事實(shí)可能相反的假設(shè),謂語動(dòng)詞使用would+動(dòng)詞原形，could+動(dòng)詞原形或虛擬語氣過去時(shí),常譯為“要是……就好了”。如:

If only I could learn English well in one day.

要是能在一天內(nèi)把英語學(xué)好就好了。

(事實(shí)上做不到)

If only I had not been late for the interview.

要是我面試沒遲到就好了。(事實(shí)上遲了)

If only Simon would reply to my letter.

要是西蒙能給我回信就好了。

(事實(shí)上不會(huì)回信)

4. would rather后的從句

表示現(xiàn)在的愿望,動(dòng)詞用過去式;表示過去的愿望,動(dòng)詞用had + 過去分詞。

I would rather she were not present.

我寧可她不在場(chǎng)。 (事實(shí)是她在場(chǎng))

I would rather he had told me the truth.

我寧可他告訴我事實(shí)真相。　　　　　　

(事實(shí)是他沒告訴我事實(shí)真相)

5. It is (about / high) time后的定語從句

表示該做某事而沒做,從句謂語用過去式。

It is time that we went home.

我們?cè)摶丶伊恕?實(shí)際沒走)

It is high time that you went to bed.

你早該睡覺了。

6. advise， suggest， order， require， command， demand， desire， propose， insist， request等后的賓語從句常用虛擬語氣,從句謂語動(dòng)詞用should+動(dòng)詞原形,should常被省略。

He proposes that we(should) discuss the problem further.　

他建議我們進(jìn)一步討論那個(gè)問題。