【正文】
e, each time, next time, by the time, the first time等,以及 the day, the year, the morning等,也可引導(dǎo)一個時(shí)間狀語從句。 1. It is three years since she was in the army. 2. It is three years since she joined the army. 1)Apply it after wetting your hair with warm water. You apply it after you wet your hair with warm water 2)After shampooing,squeeze out the extra water and apply conditioner. After you shampoo, you squeeze out the extra water and apply conditioner 3)After washing out the shampoo,apply the conditionerand b it into your hair... After you wash out the shampoo,you apply the conditionerand b it into your hair... 4)Before they were shown around it ,the visitors watched a video about the museum. Before being shown around it ,the visitors watched a video about the museum. before/after doing/being done 5. since 自從 ……, 通常 主句 用現(xiàn)在完成時(shí) I have never been there again since I graduated from the university. The captain has traveled almost everywhere in the world since he became a pilot. It is just a week since we arrived here. Have you known Mr. Smith for a long time? Yes, since he ____ our Badminton Club. A. has joined B. joins C. had joined D. joined 1) I have known him ever since he was a boy. 2) He had worked here since he had graduated from the university. 3) It is (has been) two years since he came here. 4) It was (had been) two years since he had e here. 6. no sooner… than 一 …… 就 …… He had no sooner fallen asleep than he heard a knock on the door. ( no sooner… than… 用于句首要求倒裝 ) No sooner had he fallen asleep than he heard a knock on the door. Hardly …when… Scarcely …when… 他剛離開家,天就開始下雨了。 We will have a further discussion before we draw/ make a final conclusion. 1. He made a mistake, but then he corrected the situation ___ it got worse. A. until B. when C. before D. as 2. Scientists say it may be five or six years ____ it is possible to test this medicine on human patients. A. since B. after C. before D. when 3. Why didn’ t you tell him about the meeting? He rushed out of the room ___ I could say a word. A. before B. until C. when D. after 4. It is almost five years ___ we saw each other last time. A. before B. since C. after D. because 連接詞 before的小結(jié): 1. We had sailed four days and four nights