状语从句张军.ppt

状语从句考点归纳 when, while, as的区别： ______ we were chatting ，she was looking at the time table on the wall． ______ I got to the airport, the plane had already taken off. ______ he comes here tomorrow, I will call you. Sometimes I watch TV ______I am having breakfast． When的用法 并列连词when常用与以下句型中： ①…was/were doing…when…（正在做…突然）②…was/were about to do…when…（刚要做…突然）③…was/were on the point of doing…when…(刚要做…突然)④…had just done…when….(刚一…就)⑤Hardly/Scarcely had…done…when…(刚一…就) I was about to go out ______ the telephone rang. A. when B. suddenly C. as soon as D. directly We were swimming in the lake _______ the storm started. A. when B. suddenly C. until D. before They kept trying _____ they must have known it was hopeless. A. if B. because C. when D. where when 还可表示“既然”、“考虑到” Why do you want a new job ______ you’ve got such a good one already? A. that B. where C. which D. when While的用法 While I was walking down the street, I came across an old friend. He like pop music, while I am fond of folk music. While I really don’t like art, I find his work impressive. as的用法 1.She sang as she worked. 2. Smart as he is ,he doesn’t study hard. 3. You must try to do as I did. 4. As she was late for class, she had to say sorry. before引导的时间状语从句 before引导从句时,词义非常灵活，注意下列句子中的before的词义：1.Before I could get in a word, the tailor had measured me.(还没来得及…就)2.We hadn’t run a mile before he felt tired.(还没…就)3.We had sailed 4 days before we saw land.(…才…)4.Please write it down before you forget it.(趁还没…) He made a mistake, but then he corrected the situation _______ it got worse. A. until B. when C. before D. as Someone called me up in the middle of the night, but they hung up ________ I could answer the phone. A. as B. since C. until D. before She is getting better by degrees, but it will be some time _____ she is completely well. A. that B. since C. when D. before They sat down opposite each other, but it was some moments __