情态动词的一些特定用法.ppt

情态动词小结 Model Verbs will 1. 用于祈使句的反意疑问部分： will you? / won t you? 表 临时决定 做 - 表意愿 (“ 愿意 ” ) 主语是物时， will 表 “ 起作用 ” . A B A D 比较 1） be to do: 表示事先商定、安排，可能性，必 要、责任 The students are to meet at the school gate t omorrow. 明天学生们将在学校大门口集会。 2) be going to do: A表示将要发生的事情或打算最近要进行的动作。 It is going to rain soon. 快要下雨了。 B（主将从现）在含有条件状语从句的主从复合 句中，主句一般不用 be going to，而常用 will （第一人称用 shall） 。 3) be about to do: 1) 表示即将发生的动作，在时间上指最近的将来。 在含有 be about to do的句子中，不能再加时间状语。 We are about to start. 我们就要出发了。 The medical team is about to start immediately. The medical team is about to start. I ve come out without any money. Never mind I _ you some. A. am going to lend B. will lend C. have lent D. am to lend 事先考虑好的，用 be going to； 临时想到的，则通常用 will. Where is the telephone book? I _(get)it for you. Why are you taking it out? I _(wash) it. will get am going to wash (临时想法 ) (事先考虑 ) Try to summarize them by yourselves 2. would A C would 指 “ 过去常常 ” , 习惯性动作 C C would 常用于 虚拟语气 would do would have done 现在 / 将来 过去 3. must D B D C mustn t 表 绝对禁止 must “ 非要，偏偏 ” must 表猜测 “ 一定 ” must do must have done “ 现在一定” “ 过去一定” 4. can A A C A 表 能够 can 可用于 疑问句，否定句表猜测 can t -too / enough 无论怎样 -也不为过 can 用于 肯定句， 表客观理论上很可能 D 5. shall A A B D D D 用于 第一，三人称疑问句 ， 表 征求意见 用于 第二，三人称陈述句 ， 表 允诺，警告，威胁，命令 或 法律，规定 6. should C A C B C 表 劝说或建议 表 猜测 “应该会” 可能性较大 “ 竟然” 对将来虚拟的 if条件句中， 把 if省略， should放句首 should have done ought to have done 含情态动词 表推测的 反义疑问句 He must be helping the old man to water the flowers, _? A. is he B. isn t he C. must he D. mustn t he B 7. You must have read about Dickens, _? A. mustn t you B. haven t you C. can t you D. didn t you Tom can t have said so yesterday, _? A. hasn t he B. can he C. did he D. haven t he 情态动词 + have done 的用法 must have done can t / couldn t have done might have done shouldn t have done needn t have done could have done would have done D C B A A B A C 自我检测 1-5 B A C A D 6-10 C C D D D 11-12 C C