時間狀語從句(編輯修改稿)
2025-03-28 21:36 本頁面
【文章內(nèi)容簡介】 un came out soon after the storm stopped. 暴風雨過后不久 ， 太陽出來了 。 ? 注： before和 after引導的狀語從句 ， 主從句發(fā)生的動作先后順序很明確 ， 因此 after從句中的謂語動詞常常使用一般過去時來代替過去完成時 。 ? After he (had) finished his homework, Tom began to play puter games. Since ? 注意 ? since 引導的時間狀語從句 ， 主句常用完成時 ， 從句常用一般過去時 。 ? He has written to me frequently since he was ill. ? 句型 ? It is /has been + 一段時間 + since ， 如果從句是延續(xù)性動詞 ， ,用一般過去時和現(xiàn)在完成時不同 。 ? It is/has been two years since he was in the army. (反向翻譯 ） ? 他離開軍隊兩年了 。 ? It is/has been two years since he has been in the army. ? 他當兵兩年了 。 1.Since when ________the country _____ open to international trade? 1978, I suppose. 2023陜西卷 2._______ 5 years _________ he graduated from college. _______ 2 years _____ he smoked. has been It is since It is since關連詞組 hardly/scarcely… when no sooner… than as soon as 三種句子結(jié)構表示 “ 一 …… 就 …… ”。 注意： 時態(tài) as soon as 以一般時態(tài)代替將來時態(tài) no sooner（ 一旦 ...立即 ...), hardly, scarcely(幾乎不 ）后的句子用過去完成時 ， than/when 后的句子用一般過去時 。 倒裝 當 hardly或 no sooner位于句首時 ， 要倒裝 。 我一到達上海就給你打電話 。 時態(tài)要求： 改錯 : I hardly got home when it began to rain 時態(tài)要求： I will call you as soon as I arrive in Shanghai. ?had 以一般現(xiàn)在時代替將來時 主句用 had done, 從句用 did no sooner...than,hardly...when,scarcely...when He had hardly arrived when it began to snow． Hardly _____________when it began to snow． We had hardly walked into the hall when the lecture started． Har
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