導語：虛擬語氣通過謂語動詞的特殊形式來表示，下面YJBYS小編向大家介紹賓語從句的虛擬語氣，歡迎參考!
一、在動詞wish後的賓語從句中的虛擬語氣
在動詞wish後的賓語從句中的虛擬語氣，常省去賓語從句的引導詞that。
一)、對現在情況的虛擬(與現在的事實相反)：
從句用過去式或過去進行式(時間上是同時的)。其句子結構為：賓語從句的'謂語be和were(was)，實義動詞用過去式。例：
1. I wish (that可省略,下同)I knew the answer to the question.(wish, 動詞過去式knew)我希望知道這個答案。(事實上是不知道)
2. I wish it were spring in my hometown all the year around.(wish, were)但願我的家鄉四季如春。(事實上不可能)
3. I wish I were a bird.(wish, were)但願我是隻小鳥。(事實上不可能)
4. When she was at the party,she wished she were at home.(wished,過去虛擬動詞were)(事實上並不在家)
5. Now that he is in China, he wishes he understood Chinese.(wishes,過去虛擬動詞understood)
現在他在中國，他希望能懂得中文。(事實上並不懂)
6. When we begin the trip, they will wish they were with us.(will wish,過去虛擬動詞were)(事實上並不和我們在一起)
二)、對過去情況的虛擬(和過去的事實相反)：
用wish表示對過去事情的遺憾。其句子結構為：賓語從句的謂語用過去完成時，或would, could, might+現在完成時。例：
1. I wish (that可省略，下同)I hadn't wasted so much time.
我後悔不該浪費這麼多時間。(事實上已浪費了)
2. He wishes he hadn't lost the chance.
他真希望沒有失去機會。(其實已失去)
3. We wished he had spoken to us.
(wished，had + spoken)(事實上他並沒同我們講)
4. I wish you had called earlier.
(wish, had + called)(事實上已遲了)
5. They will wish they had listened to us sooner.
(will wish,had + listened)(事實上並不如此)
例題分析：I wish I ______ longer this morning, but I had to get up and come to class.
A. could have slept B. slept C. might have slept D. have slept
動詞wish後面接從句，表達不可能實現或與事實相反的情況時，謂語動詞要用虛擬語氣，即用過去式(表示現在發生的動作)或過去完成式(表示過去發生的動作)。本題後半句謂語動詞have用的是過去時had
to get up and come, 所以前面要用過去完成時表示過去發生的動作。所以, 選項A)could have slept是答案
三)、對將來情況的虛擬(表示將來的主觀願望)：
從句動詞"would/should/could/might + 動詞原形"(時間上較後)(請注意：主句和從句的主語不相同)。用wish表示對將來事情的願望。例：
1. I wish it would stop raining.(虛擬動詞would+動詞原形stop)
我希望雨能停止。(事實上雨還在下著呢)
2. I wish you would be quiet.(would + be)
我希望你安靜一些。(事實上那傢伙還在吵著呢)
3. You wished she would arrive the next day.(would + arrive)
你希望她第二天會到。(事實上她還沒到)
4. I wish she would change her mind.(would + change)
我希望她會改變主意。(呵呵，女孩子可沒那麼容易就改變主意喔)
5. He will wish we would join him the following week.(would + join)
(只是希望我們和他在一起，實際上還沒在一起)
四)、注意：
1.如果將wish改為過去式wished, 其後that 從句中的動詞形式不變。例如：
I wished I hadn't spent so much money.
我要是那時沒有花掉那麼多錢就好了。
2. 如果that 從句中用would , 一般表示對現狀不滿或希望未來有所改變或請求
I wish he would answer my letter.
I wish prices would come down.
