Unit 1 Section Ⅲ Learning about Language——动词不定式(短语)作表语（Word教参）-【状元桥·优质课堂】2021-2022学年新教材高中英语选择性必修第三册（人教版2019）

Section Ⅲ　Learning About Language——动词不定式(短语)作表语 用动词不定式完成下面教材中的句子并体会它们的语法特征。 1．Perhaps the best way to understand Western art is __to_look__(look) at the development of Western painting over the centuries. 2．During the Middle Ages, the purpose of Western art was __to_teach__(teach) people about Christianity. 3．In this work, Monet's aim was __to_convey__(convey) the light and movement in the scene—the subjective impression the scene gave him—but not a detailed record of the scene itself. 4．What they attempted to do was no longer __(to)show__(show) reality, but instead __to_ask__(ask) the question, “What is art？” 动词不定式(短语)作表语 动词不定式(短语)作表语相当于名词作表语。它和主语处在同等地位，所指的或是和主语一样的东西，或是主语产生的结果。常常可以将主、表交换位置，句子的意义不变。 一、定式(短语)作表语的用法 1．主语是以aim, suggestion, duty, hope, idea, intention, plan, purpose, the way to do sth等为中心的名词词组时，或者以what引导的名词性分句表示时，一般用动词不定式作表语说明主语的内容。 ►My idea is to climb the mountain from the north. 我的想法是从北面爬这座山。 ►Our plan is to make better use of these materials. 我们的计划是更好地利用这些材料。 ►What I would suggest is to ask your father for his opinion on this matter. 我的建议是就这件事征求你父亲的意见。 ►The best way to encourage your kids to enjoy meals is to involve them in the planning and preparing. 鼓励孩子享受美食的最好方法是让他们参与计划和准备(美食)。 2．表示目的。 ►The next step is to make sure that you know exactly what is required. 下一步你要真正弄清楚需要的是什么。 ►The immediate goal is to bring the COVID­19 under control for all countries. 对所有国家来说，当前的首要目标是控制新冠病毒。 3．用于被动语态，相当于can/could, should, ought to, must，具有情态意义。 ►The regulations are to be observed. 规章制度必须遵守。 (must) ►You are to be rewarded. 你应受奖励。(should) ►It's nowhere to be found.哪儿也找不到它。(can't) 4．表示“同意、安排、命令、决定、劝告、愿望、意愿、禁止”等。 ►They are to marry next week.他们将在下周结婚。(安排) ►You must be patient and persistent if you are to succeed. 要想成功，就必须有耐心，有毅力。(愿望) 5．动词不定式(短语)作表语时，可用主动形式表示被动意义。 ►Who is to blame for the fire？谁该对此次火灾负责？ ►The house is to let.该房屋出租。 ►Something is still to find out.有些东西还有待查明。 [即时训练1]——单句语法填空 (1)I've had many dreams since I was a child.Now my dream is __to_open__(open) a