1、Section 单元语法突破语法指南本单元语法主要讲Persuasion(说服)有关的内容。1.在正式的书面语中,下列表达方式可以强化“建议”:(1)Its high time that.从句中谓语动词用过去式。例如:Its high time that we protected the old buildings.的确到了我们保护古建筑物的时候了。(2)insist,demand,suggest等后跟从句(从句中谓语动词为should+动词原形,其中should可以省略)。例如:He insisted that I(should)accept these gifts.他一定要我收下这些礼物。
2、Our teacher demanded that Mary(should)finish her homework within a week.我们老师要求玛丽在一周内完成作业。The dentist suggested that she(should)come another day.牙医建议她改天再来。语法指南(3)should,ought to后跟动词原形。例如:You should be careful.你应该小心为好。I ought to invite him to the party.我应该邀请他参加聚会。语法指南2.在非正式英语口语中,下列方式可以表达试探性“建议”:(1)If
3、I were you,I would+动词原形.例如:If I were you,I would accept the job at once.如果我是你,我会立即接受这份工作。(2)I think you should+动词原形.例如:I think you should study English well before going abroad.我认为你在出国之前应该先把英语学好。(3)I think you ought to+动词原形.例如:I think you ought to take care of him.我认为你应该照顾他。语法指南3.下列方式可用于强烈地批评、责怪某人或提
4、出建议:(1)I would rather+从句,从句用虚拟语气。例如:Id rather she set out to do the work now.我宁愿她现在就着手做这项工作。Id rather you met her at the airport tomorrow morning.我希望你明天早上能到机场去接她。(2)Youd better+不带to的不定式,否定形式把not放在had better的后面。例如:Youd better go to school at once.你最好立即去上学。(3)Its about time.+主语+一般过去时.例如:Its about time he came!是他该来的时候了!
