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高考必考语法精讲精练语法专题十二：非谓语动词非谓语动词是高考必考点，《2017年一般高等学校招生全国统一考试大纲》附录语法项目表中对非谓语动词列了三项：动词不定式、动名词和分词（包括现在分词和过去分词）。
动词不定式一、动词不定式的形式二、动词不定式的用法动词不定式可以充当谓语之外的全部句子成分，动词不定式可以带宾语或状语构成不定式短语，没有人称和数的改变，但有时态和语态的改变。
1．作主语（1）动词不定式作主语，一般表示详细的某次动作，谓语动词用单数形式。
例如：①To see is to believe.②To master English is of great importance.（2）不定式或不定式短语作主语时，常用it作形式主语，构成“It is + adj+for sb.+to do”结构,或It is +adj+for sth +to be done。
例如：①It is impossible for him to give up smoking.②It is not easy to find your way in the mountain.③It is difficult for the problem to be solved.④It is impossible for my question to be answered in his absence.2.作宾语（1）动词不定式作宾语时，常跟在某些及物动词后面，常见的有：agree，dare，decide，expect，help，hope，learn，manage，offer，pretend，promise，refuse，want, intend, fail, wish, choose等。
例如：①I mean to go there at once.②We must learn to tell friends from enemies.（2）不定式短语作宾语时，假如还带有宾语补足语，往往把不定式短语放在宾补之后，而用it 作形式宾语。
高考英语：非谓语动词考点精华讲义高三的一轮复习已经进行了一大半，许多同学做题依然错误百出，其中一个重要原因是不能看懂句子结构，甚至分不清谓语动词和非谓语动词。
今天分享一下我总结的非谓语动词复习讲义，希望能够帮助大家更好地掌握这一重要的语法专题。
一、分类：动词不定式、动词-ing形式、动词的过去分词总的特点：1.非谓语动词作状语时，其逻辑主语与主句主语保持一致。
2.Doing/T o do (sth.)+单数V : 非谓语动词作主语，谓语用单数。
二、动词不定式1、特点：表将来2、形式：①基本型：to+动词原形（do）。
②被动式：to be done ③完成时:to have done ④进行时：to be doing3、句子功能：主语、宾语、表语、定语、状语、补语（宾补）Eg: ①To catch the early train, you`ll have to get up early.(目的状语)②I rushed there in a taxi only to find the library closed.(结果状语：意外结果)。
③This is very good music to dance to.(定语)④It is necessary to learn English well.(主语，it 为形式主语)4、不定式的省略1）（为了避免重复）并列结构中第二个to：I want to get up early and read English.例外：前后表对比时，to不可省去:To be or not to be ,that is the question.It is better to lose one’s life than to lose one’s spirit.2) （为了避免重复）省去to后的不定式结构：—Would you liketo go shopping?—Yes,I`d like to.例外：to后有have/be时，保留be或have—Did you go shopping yesterday? —No, but I ought to have.5、不定式主动形式表被动意义1）主(sth)+ be + 主补/表语（表性质的adj. + to do）2) 主＋Vt + 宾语 + 宾补（adj.+ to do)3) 主 + Vt+ 宾语+定语(to do): 不定式作定语与所修饰的名词（代词）构成逻辑动宾关系，又和该句主语构成逻辑上的主谓关系。
非谓语动词规律方法1．考查立意较低，主要考查的是非谓语的一些最基本的用法。
但是，题目的设置注重了情景化和结构复杂化，加大了考生对题干句的理解难度。
2．设问的角度呈现出多样化趋势，不仅仅是非谓语间的互相干扰。
命题趋势不容置疑，高考将继续加强对非谓语动词的考查，试题的特征将继续呈现出―情景化‖和―设问角度的多样化‖的趋势，但试题的难度将会有所控制。
突破方法1．非谓语动词的用法是一个系统性、综合性很强的语言点，切不可记住几个条条框框就去乱套。
真正领悟非谓语动词的用法要具备以下基础知识：①具有句子结构的知识，要分得清简单句与复合句，陈述句与祈使句。
②具有简单句最基本的五种句型的知识，要分得清双宾语和复合宾语。
③具有扎实而丰富的动词知识，要分得清及物动词和不及物动词，双宾动词和复宾动词。
一些最基础最常用的动词的用法应当烂熟于胸。
④具备各种复合句的知识，能够拆析30词左右长度的复合长、难句。
2．理解分析非谓语动词的句法功能，重点掌握不定式、动名词作宾语的区别；不定式、分词作补语的区别；不定式、分词作状语的区别；独立主格的用法；不定式、分词作定语的区别。
3．解答考查非谓语动词的题目时，一定要保持头脑冷静。
一般要遵循以下解题思路：①解析句子结构，确定设空在句子中充当的功能（如状语、定语或宾补）；②找准相关动词的逻辑主语，确定该动词与逻辑主语是什么关系（主动还是被动）；③搜索句子中相关的时间信息，确定非谓语动词的恰当形式；④将该选项置入空中，看是否能够做到字从意顺，或是否能传达有效信息、完成交际任务。
知识清单清单一非谓语动词的句法功能清单二分词、不定式作宾补用法要点一、分词、不定式作宾语补足语的区别1．感官动词see, watch, observe, look at, hear, listen to, notice 等和使役动词have 后面的宾补有三种形式，即原形动词（不带to 的不定式）、现在分词和过去分词。
非谓语动词一、非谓语动词的概念非谓语形式有三种： 1.动词不定式：to do表示目的和将来2、动词的ing(动名词) : doing表示主动和进行 3.动词的过去分词：done表示被动和完成二、非谓语动词的时态和语态一般式完成式进行式不定式主动to do to have done to be doing被动to be done to have been doneing 形式主动doing having done被动being done having been done过去分词被动done三、非谓语动词的做题步骤：1、判定是否用非谓语形式。
方法：看看句子中是否已有了谓语动词了。
2、找非谓语动词的逻辑主语。
方法：非谓语动词的逻辑主语一般是句子的主语。
3、判断主被动关系。
方法：非谓语动词与其逻辑主语的主动还是被动关系。
4、判断时间关系。
方法：分析句子，看看非谓语动词所表示的动作发生在谓语动作之前、之后还是同时。
之前常用done; 之后常用to do; 同时常用doing。
一、非谓语动词作主语和表语的比较1、不定式和动名词作主语和表语：1）. 不定式表示一次性的、具体的动词。
动词ing 常表示一般的、泛指的或习惯性的动作。
如：________ is a good form of exercise for both young and old.A. The walkB. WalkingC. To walkD. Walk2）. 不定式作主语时，常用it 作形式主语，即用句型：It is + adj. / n. + (for / of sb. ) to do sth.It’s important for us to learn English well. It’s kind of you to help us.注意：下面几个句型是用动名词：It’s no good / use doing sth. There is no point（in）doing sth2、不定式、动名词、分词作表语的比较：1）、不定式、动名词作表语，.表示主语的内容。
非谓语动词一、动词的ed形式1．动词ed形式作状语(1)动词ed形式作状语，进一步说明谓语动词的动作或状态，其逻辑主语通常就是句子的主语。
Used with care, one tin will last for six weeks.Translated into English, the sentence was found to have an entirely different word order.(2)某些动词的过去分词已经形容词化，此时这些过去分词表示一种状态。
这样的词(组)常见的有：lost (迷路的), seated (坐), hidden (躲), stationed (驻扎), lost/absorbed in (沉溺于), dressed in (穿着), tired of (感到厌倦)等。
Absorbed in his book, he didn’t notice me enter the room.2．动词ed形式作定语动词ed形式(短语)作定语与它所修饰的名词之间在逻辑上存在被动关系，并表示该动作的被动或完成。
Tsinghua University, founded in 1911, is home to a great number of outstanding figures.3．动词ed形式作宾语补足语动词ed形式作宾语补足语时，句中的宾语往往就是其逻辑主语，该动词与宾语之间存在动宾关系。
Michael put up a picture of Yao Ming beside the bed to keep himself reminded of his own dreams.4．动词ed形式作表语动词ed形式作表语时，大多数是已经形容词化的过去分词。
如：seated, disappointed, stuck, excited等。
高中英语非谓语的知识点总结高中英语非谓语的知识点总结：在英语语法中，谓语是句子的核心部分，用来表达句子的主语动作状态，但是谓语的单一形式有时候不能完全表达我们的意思，这个时候，我们可以使用非谓语（也称名词性从句）来描述谓语动作的信息，比如动作的原因、结果、时间等。
高中阶段的英语学习中，非谓语是一个非常重要的知识点，掌握了非谓语的用法，不仅能够让我们的文章更为完美，也可以让我们更准确地表达自己的意思。
以下是一些高中英语非谓语的知识点总结：1. 不定式（Infinitive）不定式是由动词原形和to构成的动词不定式结构，在句子中可以作为主语、宾语、表语、定语和状语等。
不定式的基本结构为：to + 动词原形，而不定式的否定形式是在to后面加not。
例如：- To learn a foreign language well requires patience and perseverance.- My dream is to be a successful writer.- I have nothing to do today.- My mother told me not to watch TV too much.2. 动名词（Gerund）动名词是由动词的现在分词形式加上ing构成，在句子中可以作为主语、宾语、表语、定语和状语等。
因为动名词可以表示一个实际发生的动作或状态，所以常用来描述某些活动或状态的原因、结果、时间等。
例如：- Running is good for your health.- I enjoy watching movies in my spare time.- I couldn't help laughing when I saw the funny cartoon.- She is interested in learning foreign cultures.注意：在一些动词后要用动名词作宾语，比如：avoid、can't help、enjoy、finish、mind、practice、quit、risk、suggest 等。
英语非谓语知识点分类总结英语非谓语知识点1非谓语动词详解总结不定式的作用高中英语知识点：1、作主语不定式作主语时，谓语用单数。
往往用it作形式主语，把不定式放在谓语后面。
高中英语知识点：2、作宾语（1）动词+不定式。
（2）动词+疑问词+to，“特殊疑问句+不定式”相当于名词，作宾语。
高中英语知识点：3、作宾语补足语（1）动词+宾语+不定式（todo）。
（2）表见解、看法的动词结构可为：动词+宾语+tobe的不定式结构。
(3)There+不定式。
高中英语知识点：4、作定语（1）、不定式作定语，修饰名词或代词，不定式和它所修饰的名词之间有逻辑上的主谓关系、动状关系、同位关系或动宾关系。
不定式通常要放在这些被修饰的词后。
（2）.如果作定语的不定式是一个短语，则要保留不定时短语中的副词或介词。
高中英语知识点：5、作表语不定式可放在be动词后面，构成表语。
6、独立结构。
英语非谓语知识点2非谓语题答题技巧01确定是否需要非谓语。
句中已经有谓语动词，再出现动词表示动作时，须用非谓语形式，如果是并列谓语要有and或“，”链接。
02分析是不是固定短语。
如果是，按照固定短语分析。
03分析出非谓语的逻辑主语，主要有以下集几种情况：①非谓语做定语时，非谓语的逻辑主语是非谓语所修饰的词。
例如：I like the teacher teaching English.（译：我喜欢教英语的那个老师。
）句中非谓语做定语，修饰the teacher，the teacher是非谓语teaching的逻辑主语，非谓语与其逻辑主语是主动关系。
②非谓语做状语时，非谓语的逻辑主语是主句的主语。
例如：Watching TV，she was moved.（译：看电视时，她被感动了。
）句中非谓语做状语，非谓语的逻辑主语就是主句的主语，she是非谓语watching TV的逻辑主语，非谓语与其逻辑主语是主动关系。
③非谓语做宾语补足语时，非谓语的逻辑主语是该句的宾语。
专题06 非谓语动词非谓语动词是动词的变体，是为了满足动词作除了谓语之外的其他成分而产生的。
从该意义上来说，非谓语动词是动词的升级版本，弥补了动词的先天不足。
在语法填空和短文改错题中，这是必考考点之一，非常重要。
根据非谓语动词类别及功能，在单项填空题中以考查非谓语动词作状语和定语为主，作主语和表语也是考查重点之一。
2017年高考在单项填空题中会继续加强对非谓语动词的考查，而且分词作状语和定语仍是考查的重点，对于不定式考查热度仍然不减，尤其是不定式作状语和定语的用法。
热点题型一非谓语动词作状语例1、(2015·高考北京卷，T21)________ the early flight，we ordered a taxi in advance and got up very early.A．Catching B．CaughtC．To catch D．Catch【答案】C【解析】考查非谓语动词。
句意：为了赶上早班飞机，我们提前订了出租车，而且起床很早。
此处表目的，应用动词不定式，所以答案为C。
【提分秘籍】1．不定式作状语表示结果、目的(可与so as to/in order to替换，但是so as to不可置于句首)或原因(表示原因只用在表示喜、怒、哀、乐等表语形容词后)。
2．分词作状语：非谓语动词作状语时，其逻辑主语通常要与句子的主语保持一致。
现在分词作状语时，现在分词所表示的动作与句子主语之间构成逻辑上的主动关系。
过去分词作状语时，过去分词所表示的动作与句子主语之间构成逻辑上的被动关系。
现在分词作结果状语时表示自然而然的结果;不定式作结果状语表示出乎意料的结果，其前常加only。
3．部分过去分词源于系表结构，作状语时不表示被动，也不表完成，而表示一种状态。
常见的有：lost(迷路的)，seated(坐着的)，hidden(躲着的)，lost/absorbed/buried in(沉溺于)，dressed in(穿着)，tired of(厌烦的)，faced with(面对着)。
扶弱资料六非谓语动词所谓非谓语动词,就是指它们不能在句子中单独作谓语;但它们又具有动词的特征,即可以有宾语如果是及物动词的话、可以有时态和语态的变化、可以有自己的逻辑主语;同时,它们又具有名词的某些特征,即它们可以作主语、表语、宾语、定语和状语;一、动词不定式:动词不定式时态与语态：1. 作主语:To say something is one thing, to do it is another.2. 作表语: My suggestion is to carry out the plan immediately.3. 作宾语: He decided to buy a computer.4. 作宾语补足语: Mr. Smith wants his son to become a lawyer.注：在let, make, see, notice, hear等动词后面,作宾补的不定式均省去to. 如: He madea face and made everybody___________laugh. 但是,在被动语态中,作主语补足语的不定式则要加上to.如: We are made ________________write a composition every week by the teacher. 5. 作定语: He used to have a lot of meeting to attend.注：当出现the first / second / last / only /best时,常跟不定式作定语He was the first man _____________ get to school this morning.6. 不定式作状语:To see what would happen, we stayed there.二、分词现在分词和过去分词一V-ing 形式时态与语态：be poor, he couldn’t go to school.are interested in _____________ play chess.question _____________________ discuss now is important.boy was afraid of ____________________ leave alone at home.work in the country for three years, he knew how to grow vegetables.注：现在分词的完成式表示分词的动作发生在谓语动作之前二过去分词只有一种时态与语态规则的：V-ed ；不规则的记不规则动词表1. The boy went home with his homework _______________ finish.2. ___________ see from the top, the stadium looks like a bird nest.现在分词和过去分词在语态和时间方面有较大区别：现在分词表示的意义是主动的,进行的：the girl gathering flowers正在采花的女孩过去分词表示的意义是被动的,完成的：the flowers gathered this morning早晨采的花1. 作表语: The news is very exciting. / They are very excited at the news.2. 作定语: Don’t disturb the sleeping child. / The arrested thief will be sentenced soon.3. 作宾补: He likes to sit on the beach and watch the seagulls flying. / The work left everyone exhausted.注：有些动词如see, hear, feel, notice, watch等既可跟现在分词,也可跟不带to的不定式作复合宾语;它们的区别在于：现在分词着重说明动作正在发生；不定式着重说明动作的全过程I saw the boys climbing the wall. 我看见孩子在爬墙;I saw the boys climb the wall. 我看见孩子爬墙了;4. 作状语: They stood there waiting for the busHearing the knock on the door, they stopped talking.Asked to work overtime that evening, I missed a wonderful film. Compare:1._______________ follow the old man, we went upstairs2. ________________ follow by the old man, we went upstairs.三、动名词 V-ing1.作主语和表语动名词做主语往往表示经常性、习惯性的动作, 在口语中也可以表示具体的动作;如：Seeing is believing. / My hobby is collecting stamps.注：在“It is no use good”等习惯表达法中,常用形式主语“it”It is no use quarreling with her. / Is it worthwhile trying again 2.作宾语在allow, advise, forbid, permit后直接跟动名词作宾语,如果有名词或代词作宾语,则构成“allow／advise／forbid／permit ＋名词／代词＋不定式宾语补足语”之形式;如：We don't allow_______________ smoke here．We don't allow anybody ________________ smoke here3. 作介词宾语Have you got used to working on the night shift值班Children are fond of reading detective stories.注某些习惯用法中,常省略介词,仅保留动名词He is busy in preparing a report.They spent a lot of time in making preparation.We had great difficulty / trouble in finding his house.非谓语动词需要注意的几个问题:一、不定式的逻辑主语一般的结构为for+名词+不定式,如：It is difficult for a foreigner to learn Chinese. I found it impossible _____ him to do the job alone.但在表示人物性格,特征等的形容词后kind, brave, careful, clever, foolish, honest, kind, polite, rude, stupid, wise,常用of引出不定式的逻辑主语,如：It was wise of him to do that. It was very brave ________ him to catch the thief.二、不定式的主动式还是被动式作定语时,当句中出现的名词或代词是不定式动作的执行者时,用主动式I have a meeting to attend. The teacher gave John a book to read,若不定式动作执行者不是上述情况,而是其他人,用被动态： Here are the clothes to be washed三、有些动词虽然既可跟不定式又可跟动名词作宾语,但意义差别较大如；a remember to do 记住要做某事, remember doing记得曾做过某事b forget to do 忘记要做某事, forget doing 忘记曾做过某事c regret to do 因要做某事感到不安, regret doing因做了某事感到后悔四、分词做表语有两种情况,一种是现在分词做表语,一种是过去分词做表语,这两者区别是考试中经常考到的地方;一般来说,凡表示“令人……的”都是-ing形式,凡是表示“感到……”都用-ed形式;这类词常见的有：interesting令人感兴趣的 --interested感到有趣的； exciting令人激动的--excited感到激动的delighting令人高兴的 --delighted感到高兴的； disappointing令人失望的--disappointed感到失望的五、admit, advise, avoid, can't help, consider, delay, deny, escape, enjoy, finish, feel like, imagine, mind, practise, risk, suggest等动词以及所有带介词的短语动词后面只能跟动名词做宾语;The boy was lucky enough to escape being punished.六、look forward to, pay attention to, stick to, devote … to, make contributions to, get/be used to, object to中的to是介词,因而其后接动名词做宾语,不要误用动词不定式;1 I'm looking forward to seeing you again.2 Mr. Reed made up his mind to devote all he had to setting up some schools for poor children.七、主动形式表示被动意义①动词want, need, require后作宾语的动名词的主动形式;这时句中的动名词与句子的主语有逻辑上的动宾关系;例：The TV set wants / needs / requires fixing.= The TV set wants / needs / requires to be fixed.②形容词worth后接的v -ing的主动形式;例：The film is worth seeing.③某些作表语的形容词如easy, difficult, hard等后接的不定式主动形式;例：This question is easy to answer.＝To answer this question is easy.语法填空 --- 高考真题回顾一、全国卷：真题再练：在下列各句空白处填入所给词的正确形式,并说明理由;1.2015卷I·68 Yangshuo is really beautiful. A study of travelers ___________ conduct by the website Trip Advisor names Yangshuo as one of the top 10 destinations in the world.2.2015卷I·70 Abercrombie & Kent, a travel company in Hong Kong, says it regularly arranges quick getaways here for people _______ live in Shanghai and Hong Kong.3.2015卷II·61 The adobe dwellings土坯房 ______ build by the Pueblo Indians of the American Southwest are admired by…4.2015卷II·64 In addition to their simple beauty, what makes the adobe dwellings admirable is their ability to “air condition” a house without ______ use electric equipment.5.2015卷II·66 When a new day breaks, the walls have given up their heat and are now cold enough _______ cool the house during the hot day.6.2014卷I·65 But the river wasn’t changed in a few days or even a few months. It took years of work _________ reduce the industrial pollution and clean the water.7.2014卷I·68 While there are ________ amaze stories of instant transformation, for most of us the changes are gradual and require a lot of effort and work, like cleaning up a polluted river.8.2014卷II·41 One morning, I was waiting at the bus stop, worried about ______ be late for school.9.2014卷II·43 There were many people waiting at the bus stop, and some of them looked very anxious and ______________ disappoint.10.2014卷II·46 I heard a passenger behind me shouting to the driver, but he refused _________stop until we reached the next stop.语法填空 --- 强化训练用括号中所给动词的适当形式填空：1.We often provide our children with toys, footballs or basketballs, ___________think that all children like these things. 05全国二2.___________ face with a difficult situation, Arnold decided to ask his boss foradvice. 05北京春招3.I couldn't do my homework with all that noise ________________ go on. 05北京4. With everything he needed ________________ buy, he left the supermarket.5. With too much work ______________ do , I can’t go out with you.6. The building ________________ build now will be a restaurant.7. The building _________________ build next year will be a restaurant.8. The building _______________ build last year is a restaurant.9. Don't sit there____________ do nothing. Come and help me with this table.10. All these gifts must be mailed immediately so as to __________ receive in time for Christmas.11. Lessons ___________________learn in sports can help us in our dealing with other people.12. Fishing is his favorite hobby, and ________________ collect coins also gives him great pleasure.13. Eugene is never willing to change his mind. It's no use _____________ argue with him.14. He was the only foreigner _________________ get such an honor yesterday.15. I can't stand __________work with Jane in the same office. She just refuses____________ stop talking while she works.短文错误 --- 高考真题回顾1. 2015新课标卷II After looks at the toy for some time, he turned around and found that ……2. 2013新课标卷II Have tea in the late afternoon provides a bridge between lunch and dinner.3.2012新课标卷 My punishment lasted a year. Meanwhile, I found out that with more patience, I could make my toys to last. My attitude changed from then on.短文错误--- 强化训练1 David and I wanted go off to find help but Bill insisted on staying near the car. 全国卷2 David pointed to a path which he thought would probably leading to a village. 全国卷3 I went back to get David and helped him to stood up. 全国卷4 Charles and Linda Mason do all of these things as well as climbed building. 全国卷5 Modern people know more about health, have better food, and to live in clearer surroundings. 全国卷6 The World Health Organization and other organizations are working improve health all over the world.7 …you pay the cost of send a postcard, the librarian will write to you. 全国卷8 …and let you to know when the book you want has returned全国卷9 I want to thank you again for have me in your home for the summer holidays. 全国卷10 I had always wanted return to the village after moving away. 全国卷11 It was very kind of them to meet me at the railway station and drove me to their home.全国卷12 I look forward to hear from you soon. 全国卷13 Play football not only makes us grow up tall and strong but also gives us a sense of …. 全国卷14 I was often a little tired after a day‘s work and watch TV demands very little effort. 全国卷15 I‘d like very much come but I have an examination on Monday morning. 北京春季卷16 I‘ll spend the whole weekend reading and prepare for it. 北京春季卷高中英语辅导---基础篇参考答案一、动词不定式: 4. 如,laugh 如,to write 5. to get二、分词一V-ing 形式 1. Being poor 2. playing 3. being disscussed 4. being left 5. Having worked二过去分词 finished Seen4. 作状语 1. Following 2. Followed三、动名词 2. smoking; to smoke需要注意的几个问题:一、不定式的逻辑主语 for语法填空 --- 高考真题回顾一、全国卷：1. conducted 2. living 3. built 4. using 5. tocool6. to reduce7. amazing8. being9. disappointed 10. to stop语法填空 --- 强化训练用括号中所给动词的适当形式填空：1. thinking2. Faced3. going4. bought5. to do6. being built7. to be built8. built9. doing 10. be received 11. learnt / learned12. collecting 13. arguing 14. to get 15. working ;短文错误 --- 高考真题回顾1. 把looks改为 looking2. 把Have改为Having3. 把to 去掉短文错误--- 强化训练1wanted 后加 to,因为want 后要接不定式全国卷2leading 改为 lead,因为其前有助动词 would 全国卷3stood 改为 stand,因为 to stand up 在此为不定式结构全国卷4climbed 改为 climb / climbing,若将 as well as 视为连词,则将 climbed 改为 climb,因为它与其前的 do 并列；若将 as well as 视为介词,则 climbing,因为介词后动词用动名词全国卷5去掉live 前的 to,因为 live 与其前的 know, have 并列全国卷6improve前加to,to improve…为表目的的不定式短语全国卷7send改为sending,因为介词后接动名词作宾语全国卷8去掉 know 前的 to,因为其前有动词 let 全国卷9have改为having,因为介词后接动名词作宾语全国卷10return前加 to,因为 want 后要接不定式全国卷11drove改为 drive,因为 drive 与其前的 to meet 并列,此处的 drive 为省略 to 的不定式全国卷12hear改为 hearing,因为其前的 to 是介词全国卷13第一个play改为 playing,因为动词原形不能用作主语全国卷14watch改为 watching,因为动词原形不能用作主语全国卷15come 前加 to,因为 would like 后接不定式北京春季卷16prepare 改为 preparing,因为它与其前的 reading 并列,与其前所用的动词 spend 有关。
