高中英語module5newspapersandmagazinesgrammar課件外研版必修2-展示頁
2024-12-16 18:49本頁面
【正文】 從句相反。 Einstein almost knocked me down before he saw me. 愛因斯坦幾乎把我撞倒才看到我。 2. 由 till或 until引導的時間狀語從句 till和 until一般情況下兩者可以互換，但是在強調(diào)句型中多用 until。 要注意的是：如果主句中的謂語動詞是瞬時動詞時，必須用否定形式；如果主句中的謂語動詞是延續(xù)性動詞時，用肯定或否定形式都可以，但表達的意思不同。 I worked until he came back. 我一直工作到他回來為止。 3. 由 since引導的時間狀語從句 since引導的從句的謂語動詞可以是延續(xù)性的動詞，又可以是瞬時動詞。但在 It is ＋時間＋ since從句的句型中，從句多用過去時。 It is four years since my sister lived in Beijing. 我妹妹不在北京住有四年了。 4. 由 as soon as, immediately, directly, instantly, the moment, the instant, the minute等引導的時間狀語從句，這些連詞都表示“一 …… 就”。 As soon as I reach Canada, I will ring you up. 我一到加拿大，就給你來電話。主句用過去完成時，從句用一般過去時。 He had hardly fallen asleep when he felt a soft touch on his shoulder. No sooner had the sun shown itself above the horizon than he got out of bed to mence work. 5. 由 by the time引導的時間狀語從句要注意時態(tài)的變化：在一般情況下，如果從句的謂語動詞用一般過去時，主句的謂語動詞用過去完成時；如果主句的謂語動詞用一般現(xiàn)在時，主句的謂語動詞用將來完成時。 Each time he came to Harbin, he would call on me. Whenever that man says ―To tell the truth‖, I suspect that he’s about to tell a lie. You grow younger every time I see you. 1. We were swimming in
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