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Unit 2 Poems 第四学时 Grammar,虚拟语气在主从复合句中的用法,1虚拟语气在主语从句中的用法 (1)在It is important(strange，natural，necessary) that.句型里，that所引导的主语从句中的谓语动词常用(should)动词原形。 It is important that every member (should) know these rules. 重要的是每个成员都(必须)知道这些规则。,It is necessary that he (should)_be sent there at once. 有必要马上派他到那里去。 It is very strange that she (should)_have left without saying goodbye. 她不辞而别，真让人奇怪。 (2)It is demanded/required/suggested.thatclause，从句谓语用“should动词原形”。,It is decided (has been decided) that the meeting (should) be postponed(延期)till tomorrow. It was required that each student (should)_bring enough food on the trip.,2虚拟语气在宾语从句中的用法,在suggest(建议)，propose(建议)，demand(要求/需要), request(要求/请求)，desire(请求/期望)，order(命令)，command(命令)，insist(坚持)等动词后的宾语从句中，谓语动词用“( should )动词原形”，表建议、要求、命令。 Professor Wang suggested that we (should)not overuse our eyes and take more outdoor activities. 王教授建议我们不要过度用眼及多参加室外活动。,提示：wish宾语从句：表示不能实现的愿望或美好的愿望，表示“但愿；就好了；可惜；多好”。 (1)表示现在不能实现的愿望，从句的谓语动词用过去式，表虚拟语气。 I wish (that) I were_young again. 要是我能返老还童就好了。 How I wish I were ten years younger. 我多么希望自己能年轻10岁。,(2)表示过去不能实现的愿望，从句的谓语动词用had done/would (could)have done。 We wish we had_arrived there two hours earlier. 我们要是早两个小时到达那儿就好了。 I wish I had_met him yesterday. 真希望昨天遇见他。 (3)表示将来不能实现的愿望，从句的谓语动词用would (could)动词原形/were to动词原形。,I wish I could_fly to the moon one day. 但愿将来某一天我能飞上月球。 I wish it should_be fine tomorrow. 我希望明天是晴天。,3虚拟语气在同位语从句中的用法 demand，suggestion，proposal等名词带有同位语从句时，其谓语动词要用虚拟语气，即 (should)动词原形。 The suggestion that_the_plan_(should)_be_delayed(延迟) will be discussed tomorrow. 推迟那项计划的建议将在明天讨论。,4虚拟语气在状语从句中的用法 由as if或as though引导的状语从句表示比较或方式。 He treats me as if I were a stranger. 他把我当陌生人。 She talked about the film as if she had_really_seen it. 她谈论那部电影的神情就好像她真的看过一样。,结论：表示与现在相反的情况，从句谓语形式为动词的过去式(be用were); 表示与过去相反的情况，从句中的谓语动词用“had过去分词”。,5虚拟语气在表语从句中的用法 My demand is that you should_get_up at six. 我的要求是你应六点起床。 His order is that all of us should_get there before 5 oclock. 他的命令是我们大家五点前到达那里。,6在in order that或 so that引导的目的状语从句中，谓语动词多用could/might/should动词原形 Mr.Green spoke slowly so that his students could/might_hear clearly. 为了让学生听明白，格林先生说得很慢。,7在in case，for fear (that)，lest (以免，万一) 等引导的从句中，谓语动词用should动词原形 She took her raincoat with her in case/for fear that/lest she should_be_caught in the rain. 她带上雨伞以免淋雨。 Remind me of it in case I should_forget. 记得提醒我，以防我忘记了。,8在带有even if/even though引导的让步状语从句中的用法 Even if Lin Tao were here，I should_say the same thing. 即使林涛在这儿，我也会这样说。 Even though he had_been ill，he would_have_gone to his office. 即使病了，他仍会去上班。,9虚拟语气在定语从句中的用法 It is (about/high) time主语过去式/should动词原形。 It is (about)time our team won. 我们队该赢了。 It is high time that we had a party. 我们该举行晚会了。,10虚拟语气其他常见句式 (1) If only (要是就好了)的用法。 表现在的强烈愿望：动词用过去式； 表过去的强烈愿望：动词用过去完成时； 表将来的强烈愿望：动词用would/could动词原形。 If only I could learn English well in one day.(现在) 要是我一天能学会英语就好了！,If only I had_not_been late for the interview that day！(过去) 那天面试我要是没迟到该多好啊！ If only he would_reply.(将来) 他如能回复该多好！ (2)would rather(宁愿，宁可)后接从句，动词用虚拟语气。,表与现在事实相反的愿望：动词用过去式； 表与过去事实相反的愿望：动词用过去完成时。 I would rather she were not present. 我宁可她不在场。(事实上她在场，现在前提) I would rather he had_told me the truth. 我宁可他告诉我事实真相。(事实上他没告诉我真相，过去前提),11在其他句型中的用法 (1)Without air，there would_be no living things. 没有空气，就没有生命。 (2)But for your help，I could_not_have_done it. 要不是你帮忙，我做不好这件事。 (3)May you succeed! 祝你成功！,(4)Long live the Chinese Communist Party. 中国共产党万岁！ (5)Be careful when crossing the street，otherwise/or you would be hurt. 过马路时要小心，否则你可能会受伤的。,
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