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要是明天下雨就好了。If I were you, I would have taken his advice.從句表示現(xiàn)在,主句表示過去如果你聽我的話,現(xiàn)在就不會這么糟糕。If it hadn’t been raining those days, we should be going on with the works.從句表過去進行,主句表現(xiàn)在進行注意:主從句時間不一致情況下的虛擬語氣(混合條件句): 有時條件從句中的動作和結(jié)果與主句中的動作,發(fā)生的時間不一致,這時動作的形式應(yīng)根據(jù)它所表示的時間加以調(diào)整。(從句說明過去,主句說明現(xiàn)在。(從句說明現(xiàn)在,主句說明過去。(從句說明過去,主句說明過去和現(xiàn)在。We all suggest that he ( should ) finish his homework first.The captain manded that all the sailors ( should ) get down to work at once.It’s suggested (ordered, demanded, proposed, manded, requested, desired, insisted, required ) that … 后面的主語從句中要使用虛擬語氣,也以 ( should )+ 現(xiàn)。My suggestion is that you ( should ) go home first before ing here.My advice is that you (should) practise speaking English as often as possible. His request that his cost ( should ) be paid by the hour is pletely reasonable.The order came that the work (should) be finished two days ahead of time. 注意:當suggest 表示“暗示”。例如:我真希望你告訴我真相。 I’d rather I didn’t see you again. 我倒希望他們和我一起去。 He looks as if he were ill.他感到他應(yīng)該獨自對發(fā)生的事情承擔責任。She spoke English well as if she had studied English in England.我記得整件事情就象是昨天發(fā)生的一樣。Mrs. Smith sobbed as if her heart would break.(C)When a pencil is partly in a glass of water, it looks as if it __________.A. breaks B. has broken C. were broken D. had been broken(D)The actor is 58 years old. But he acts as if he _______ a young man.A. is B. will be C. am D. were(A)The clouds are getting darker and darker. It looks as if it _______rain.A. is going to B. will C. was going to D. would注意:如果表示的事情可能會發(fā)生,那么狀語從句中的謂語動詞可用陳述語氣。It’s high time that you went.It’s high time that you should go.我們該去睡覺了。but for要不是Without sunlight, people’s life would be different from today.But for your help, I wouldn’t have finished the work. Without your help, I would have failed.But for water, it would be impossible to live in the desert.If only…would / might /would do 將來If only… (1) …要是就好了 = I wishIf only I knew his name now!If only we had followed your advice last time!If only I could see him again next year!要是我們的父母能和我們住在一起就好了。例如:The storm stopped, otherwise the sailors would have fallen into the sea.I’m getting cold, otherwise I would keep her.Suppose (supposing) your friends knew how you are behaving here, what would they think?8. so that 與in order that 二者引導的目的狀語從句謂語部分應(yīng)該用may /might/can /could /etc.+動詞原形She stayed at home for a few days so that she might have more time to study it.She listened carefully in order that she might discover exactly wh