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动 词 的 时 态 B. 若有时间状语“for + 时间段, since + 时间点, How long”时,要用持续性动词或短暂性动词的否定。如: They have stayed (持续) in the village for 10 years. I have taught(持续) English at this school since 5 years ago. You haven’t received (短暂)her letter for 2 weeks. We haven’t left (短暂)China since 20 years ago. C. 短暂性动词的肯定不能与“for + 时间段,since + 时间点”连用,若要和他们连用则要将短暂性动词变为相对应的动词。如: I have come here for 3 years. (×)→I have been here for 3 years.( ?) 现举例说明这类动词的变化:下划线的词是错的,括号里的词是对的。 borrow / lend→ kept She has borrowed(kept) the magazine since two weeks ago. catch→ had Kate has caught (had) a cold for one day. buy→ had I’ve bought (had) this radio for 3 years. put on → worn He has put on (worn) the new coat for a week. 动 词 的 时 态 leave / go→been away They have left (been away) for one year. start / begin→ been on The film has begun (been on) for 8 minutes. get up→ been up He has gone up (been up) more than two hours. move→ been out (of) Jim’s family have moved (been out of) here for over 2 years. finish→ been over The football match has finished (been over) for two hours. open→ been open The factory has opened (been open) since 1990. close→ been closed The factory has closed (been closed) for 2 months. die→ been dead That old man has died (been dead) for three years. join→ been in/ been a member (of) Her father has joined (been in) the Party for ten years. come/ become/ arrive→been(in) They have come to (been in) this school since 1990. ④.与现在完成时有关的几种句型转换。 如:“我来广东有4年了”可用以下句型表示: I came to Guangdong 4 years ago. →I have been in Guangdong for 4 years. It’s 4 years since I came to Guangdong →Four years has passed since I came to Guangdong. 动 词 的 时 态 (5).一般过去时与现在完成时的区别 ①. 标志词不同 (具体看两种时态标志词) 如: I went to cinema two days ago. (一般过去时标志词). He has been away
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