【正文】
條件從句中有 should, were, had三個(gè)助動(dòng)詞可以把 if省略,并將這三個(gè)詞提至句首。主句和從句的謂語(yǔ)動(dòng)詞要依照假設(shè)的時(shí)間而頂。 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. 7. If only …要是就好了 If only I knew his name! If only we had followed your advice! If only I could see him again! 要是我們的父母能和我們住在一起就好了。從句中的動(dòng)詞形式一樣。 他們要求我們派他們?nèi)ツ莾汗ぷ鳌? 他堅(jiān)決要求我到場(chǎng)。即從句中的動(dòng)詞 使用 should + 動(dòng)詞原形,或者將 should省略。常見(jiàn)動(dòng)詞: 一個(gè)堅(jiān)持,兩個(gè)命令,三個(gè)建議,四個(gè)要求。 It’s high time that you went. It’s high time that you were going. It’s high time that you should go. It’s time that we went to bed. It’s time that we should go to bed. ,命令,建議的虛擬語(yǔ)氣。 條件從句 If 從句的謂語(yǔ)形式 主句的謂語(yǔ)形式 現(xiàn)在 過(guò)去 未來(lái) 過(guò)去時(shí)( were)