非谓语动词及将来时表格归纳 (中学英语教学论文)

发布时间:2016-7-16 编辑:互联网 手机版

在英语语法中,掌握好动词的用法是最重要的,而非谓语动词又是动词中非常重要的一部分,由于它们内容多,有些用法相似,所以不好掌握,经常被混淆用错,下面通过列表比较的方式,分析非谓语动词的主要用法。

非谓语动词和谓语动词的相对时间关系

非谓语动词 相对谓语动词的时间意义 例句

一般式不定式 说明行为在谓语动词所表示的行为之后,多数是那些表愿望的词:want; hope; expect; wish等。 I want to go home.

I hope to see you.

说明行为与谓语动词表示的行为同时发生,多数是那些省略不定式符号的词,一般是复合宾语。 I saw him come in.

He helped him (to) carry things.

一般式动名词 表示动作与谓语动词表示的动作同时发出。 We enjoyed seeing the film.

I am thinking of taking over the job.

在动词insist on; rely on; count on(相信)等后表示动作在谓语动词表示的动作之后发生。 He insisted on doing that work

在有些明确表示时间先后的动词和介词on; upon after代替完成动名词表示的动作在谓语动词表示的动作先发生。 I remember seeing him before.

On arriving Beijing, he went to see his friend.

一般式分词 现在分词 持续性动词 说明分词表示的动作和句中谓语动词表示的动作同时发生。 He stood there speaking.

Holding a book under his arm, he entered the room.

终止性动词 说明分词表示的动作发生之后,句中谓语动词表示的动作立刻发生。 Entering the room, I found nobody in.

Turning to the right, you will find the post office.

过去分词 持续性动词

  通常说明分词表示的动作,此句中谓语动词表示的动作先发生。 Written in simple English, the book is easy to read.

I can't find my lost pen.

说明分词表示的动作和句中谓语动词表示的动作并无先后。 He is a person well-known in this country.

代替完成式现在分词的被动语态。 Educated by the party, he became a brave fighter.

完成式不定式 说明行为动词在谓语动词表示的行为动词之前发生。 I'm sorry to have troubled you.

He is said to have come here.

He is thought to have done it.

He is believed to have done it.

He seemed to have known it.

在wish, hope, expect, intend, mean, suppose等动词过去时后,说明行为动词没有实现。 We wished to have done this.

I expected to have left by then.

(=I had expected to heave by then.)

 

完成式动名词 说明动名词表示的动作,此句中动词表示的动作先发生。 We regret having told you the news.

After having finished his work, he went home.

He denied having broke the glasses.

完成式分词 说明分词表示的动作,此句中谓语动词表示的动作先发生。多数表示一些瞬时间动词。如果是hear; see或表示位置转移的动词arrive; leave; turn; open.不用完成时 Having finished his work, he went home.

Sitting down with him, we begun to discuss it.

Hearing this, he rose and went to the door.

二.非谓语动词的被动语态

1. 非谓语动词被动语态的意义

非谓语动词 意义和用法 例句

不定式 表示被动的意义 The meeting is to be held next week.

He wanted to be sent to the hard area.

有时主动形式表示被动的意义,同被动没什么区别,具有“应该”.“值的”的意思。不定式是主语的承受者,但有时作某些形容词的宾语, 如:nice, easy, hard, difficult, fit, suitable, good, heavy, comfortable, cheap等。 The box is not strong enough to stand this.

It's too small to see.

There is a lot of work to do

The house is to let at low rent.

I am not to blame.

Houses are still to seek.

Much remains to do.

The text is hard to learn.

动名词 表示被动的意义 He insisted on being sent to the hard area.

在动词need, require等的主动语态和形容词worth后, 表示被动的意义 My watch needs repairing.

The book is worth reading.

分词 现在分词 表示被动的意义 The building being built is a school.

Not having been told, he didn't know where to start.

过去分词 表示被动的意义 Heated, the metal expands.

 

2. 一般现在分词,完成的现在分词和过去分词表示被动意义的区别

非谓语动词 意义和用法 例句

一般式现在分词 含有具体的意义,说明和句中谓语动词表示的动作同时发生,一般是持续性动词 The person being criticized is our monitor.

完成式分词 表示动作状态比句中谓语动作先发生,一般是瞬间动词 Not having been told about it, I don't know how to do it.

过去分词 具有一船的意义,强调事实,说明比句中谓语动词表示的动作先发生,有时同完成式的被动词态可互换。 Given more time, (=Having been given) I can do it much better.

 

 

 

 

三.非谓语动词的句法作用

1. 非谓语动词的句法作用一览表

非谓语动词

句子成分 不定式 动名词 分词

主语 √ √  

宾语 直接宾语 √ √  

短语动词宾语 √ √  

宾语补语 √ √ √

介词宾语   √  

形容词宾语 √ √  

表语 √ √ √

定语 √ √ √

状语 √   √

同谓语 √   √

插入语 √   √

2. 非谓语动词作主语

非谓语动词 意义和用法 例句

不定式 动词不定式表示比较具体的意义,经常和特定的动作和执行者联系起来,经常带时间或地点状语,有时表示将要发生的动作。 To master a foreign language is no easy job.

To do it well is my earnest desire

To see this film is to waste time.

To solve this problem is out of the question

动词不定式(短语)作主语时,常见的另一种形式是在句首用先行代词it作形式主语,而将动词不定式(短语)移到谓语之后作真正主语。用于这种形式是一些特定形容词,动词和名词 1)形容词作表语(常见的形容词有:important, difficult, easy hard possible)

It is foolish to act in this way.

It sounds reasonable to do it this way.

It appears likely for them to arrive.

2) 动词作谓语(常见的动词有:require, cost, amuse, delight, irritate, annoy

It took much time to do this.

It makes us excited to think about that.

It needed hard work to finish the job.

It does no good to say like that.

It didn't occur to me to ask him to help me.

3)名词作表语

It seems a pity to waste them.

It is a great pleasure to do this

It is a good idea to think this way.

动名词 动名词表求比较抽象(一般)和经常性的意义,有时可同不定式互换 Collecting stamps is a good hobby.

Swimming is a best sport in summer.

There is no telling what will happen.

There is no denying the fact.

There is no need informing him of it.

动名词短语作主语时,常见的另一种形式是在句首用先行代词it作形式主语面将动名词短语移至谓语之后作真实主语。用于这种形式是一些特定形容词和名词 1)形容词作表语(常见的形容词有:enjoyable, good, hard, worthwhile)

It is nice talking to you.

It's foolish behaving like that.

It is useless doing that

2)名词作表语

It's waste of time doing this. It's no good (use) doing that.

It's an awful job doing this. It's fun doing this

It is not an easy task doing this work.

3. 非谓语动词作宾语

成分 非谓语动词 意义和用法 例句

直接宾语 不定式 不定式的逻辑主语一般同谓语动词的主语一致 I want to read a novel.

用于该形式的常见的动词有:afford, agree, aim, apply, arrange, ask, choose, claim, decide, decline, demand, desire, determine, expect, hope, learn, manage, offer, pretend, promise, refuse, seek, swear, threaten, wish.

有时宾语省略不定式符号(常见的有:let fall, let pass, let go, let slip, 'd better, 'd rather, 'd soon,

He made believe he was correct.

动词不定式(短语)作宾语时,如其后有补足语,则可以用先行语it作形式宾语,而将动词不定式(短语)后移作直接宾语 He found it necessary to work hard at English.

用于该形式的常见的动词有:acknowledge, believe, consider, count, declare, deem, deny, esteem, fancy, feel, find, guess, imagine, judge, know, make, prove, realize, report, see, show, suppose, suspect, take(think), understand, think.

动名词 动名词的逻辑主语有时同谓语动词的主语不一致 Do you mind my smoking?

动名词(短语)作宾语时,如其后有补足语则可以用先行词it作形式宾语,而将动名词短语后移作直接宾语 We found it troublesome solving this problem.

We consider it worthwhile spending some time on this.

有一类动词后面必须跟动名词 We enjoyed staying there.

常见的动词有:admit, abhor, acknowledge, advise, advocate, avoid, confess, consider, contemplate, defer, delay, deny, discontinue, excuse, evade, fancy, finish, imagine, include, involve, justify, keep(on), mind, necessitate, pardon, postpone, practise, renounce, resent, facilitate, favor, miss, resist.

有一类动词后面可跟动名词也可以跟不定式 1) 意义区别不大。

He began learning (to learn) English at the age of five. 常见的动词有:start, like, hate, love, continue, prefer, commence, attempt, intend, propose, decline, endure, neglect, omit, recollect, recall, bear.

2) 意义有区别

a) remember doing sth 记住做过某事。remember to do sth 记住要做某事。

b) forget doing sth 忘记做过某事。forget to do sth 记住要做某事。

c) regret doing sth 遗憾做过某事。regret to do sth 遗憾要做某事。

d) try doing sth 试着做某事。try to do sth 努力做某事。

e) mean doing sth 意旨做某事。mean to do sth 打算做某事。

f) stop doing sth 停止做某事。stop to do sth 停下来做某事。

g) can't help doing sth 忍不住做某事。 can't help to do sth 不能帮做某事。

h) go on doing sth 继续做某事。 go on to do sth 接着做另一事。

短语动词宾语 动名词 这一类多是动词和小品词构成的短语 He insisted on doing that.

常见的短语有:stand up, leave off, put off, give up, can't help(stand)

不定式 这一类多数是一些特定的用法。 He is about to leave. He did nothing but play.

'd rather do sth, 'd better do sth, 'd like/love to do sth,

宾语宾补 不定式 强调动作发生的事实、将要和应该做的事 We saw him come in. I asked him to help me.

I helped him (to) learn English.

He arranged for me to stay there.

常见的动词有:

1)省略不定式符号的动词:make, let, have, see, hear, notice, watch, observe, listen to, look at

2)表示“致使”意义的动词:advice, cause, allow, ask, beg, drive, encourage, expect, forbid, force, get, intend, invite, permit, persuade, remind, teach, tell, trust, urge, want, warn

3)表示心理状态的动词:consider, declare find, prove, think, know, believe, discover, feel, imagine, judge, suppose, understand.

4)短语动词 arrange for, prepare for, provide for, ask for, care for, long for, wait for, vote for, call on, rely on, depend on, count on

动名词 说明实际的情况,这种形式数量不多。 We call this process testing.

We know of the earth behaving as a large magnet.

分词

  现在分词

  强调动作进行的过程 I found him coming in.

He kept him waiting outside.

如谓语动词是被动语态的形式,这时分词成了主语补语,分词形式不变。

He was seen coming in

过去分词 表示动作已完成,同宾语是被动关系,说明动作在谓语动词表示的动作之前。

have (get) 表示的动作往往表示别人完成,有时这个动作可能由主语完成 We found him tied to the tree.

I had my hair cut.

I can't get this motor started.

如谓语动词是被动语态的形式,这时分词成了主语补语,分词形式不变。

He was found tied to the tree.

介词宾语 不定式 这一类多是一些特定的形式, I hardly remember what I did besides read.

He had nothing in mind except to work hard.

It is better to do some work than to spend the time idly.

There is no way out than climb the cliff.

动名词 这一类数量较多。 I'm afraid of making mistakes while speaking English.

He enjoys doing nothing but talking with her.

On (as soon as he arrived) arriving, he came to see his friend.

In (while) doing this, he learned a lot.

常见的短语:look forward to, be used to, object to, prefer doing sth to doing sth

形容词宾 不定式 这一类有些语法家也认为是这些形容词的原因状语。

 

  I am glad to see you.

常见的形容词有:cross, angry, context, furious, happy, impatient, curious, proud, sorry, thankful, free, grateful, keen, anxio7us, eager, pone, ready, reluctant, willing, humble, jealous, miserable, (un)able, lucky,sad

  这一类有些语法家也认为是这些形容词的原因状语。

  I am surprised to see you.

常见的过去分词有:annoyed, ashamed, astonished, bored, concerned, amazed, confused delighted, determined, disappointed, disgusted, displeased, dissatisfied, distressed, embarrassed, excited, fascinated, inclined, overjoyed, overwhelmed, pleased, prepared, puzzled, qualified, worried, offended, scared, thrilled, vexed

动名词 这一类多是一些特定的用法。 The tree seems like trembling.

The book is worth reading.

He is busy working.

4. 非谓语动词作表语

非谓语动词 意义和用法 连系动词 例句

不定式 表示具体的动作,表示打算、计划、命令和要求等意义 有时可用appear, seem, happen等作连系动词 To see is to believe. Seeing is believing.(一般同主语的形式一直)

What I wanted to do is write it down.

The only thing you can do is wait and see.

How am I to pay such a debt?

Such questions are to be avoided.

He was never to see his friend again.

What he said proved to be true.

He seems to be ill.

常作主语的名词有:aim, ambition, duty, hope, idea, intention, mistakes, plan, purpose, suggestion.

动名词 相当于名词,说明主语动作的情况和状态。 一般是be What like best is swimming in the sea.

My job is teaching English

(My job is to teach them to learn English.)

Seeing is believing.

有时同不定式可以互换

Our duty is serving the people.

Our duty is to serve the people.

分词 现在分词 相当于形容词,说明主语动作性质的。一般分词后不再接任何成份 有时可用become ; get等 It is annoying that the meeting should be put off.

常见作表语的现在分词有:amusing, boring, charming, comforting, confusing, disappointing, discouraging, disturbing, embarrassing, exciting, pleasing, fascinating, interesting, inviting, missing, obliging, promising, puzzling, shocking, striking, surprising.

过去分词 相当于形容词说明主语动作的性质或状态,一般后面带介词短语,有些形容词化的过去分词前可加very. 有时可用become ; get ;remain ; appear ; seem; fell; go; look等动词 He remained puzzled. He appeared satisfied with that.

My work is finished. My watch is gone.

常见的过去分词有:1)常见带介词about分词: annoyed, concerned, excited, pleased, puzzled, shocked, worried 2) 常见带介词at分词: amazed, amused, annoyed, astonished, delighted, disappointed, disgusted, displeased, dissatisfied, excited, offended, overjoyed, pleased, shocked, surprised, 3) 常见带介词against分词: arranged, prepared, irritated, arranged 4) 常见带介词for分词: celebrated, concerned, destined, disqualified, noted, prepared, pressed, qualified. 5) 常见带介词in分词: absorbed, celebrated, concerned, disappointed, delighted, dressed, embarrassed, engaged, entangled, experienced, interested lost, 6) 常见带介词on分词: founded, based, bent, set 7) 常见带介词to分词: abandoned, accustomed, acquainted, addicted, adapted, committed, dedicated, destined, devoted, doomed, engaged, entitled, exposed, known, lost, opposed, related, inclined, married 8) 常见带介词with分词:annoyed, bored, concerned, delighted, disappointed, discontented, disgusted, displeased, dissatisfied, equipped, excited, occupied, obsessed, pleased, pressed, satisfied, socked, stunned, surrounded loaded, tormented, torture

5. 非谓语动词作定语

非谓语动词 位置 意义和用法 例句

  不定式 动词不定式必须放在所修饰词(名或代)后 表示将要发生,应该做的动作,说明动作在谓语动词表示动作之后,具有形容词性质。 I have much work to do.

He has no place to live in.

有时根据意思的需要加介词,这时介词不能省略,因被修饰的名词是它的宾语。

  动名词 动名词放在在所修饰的词前 说明所修饰词的性质,具有名词的性质,它同所修饰的名词间不存在什么主谓关系 He looked me with questioning eyes.

a living room.

 

一般形式 分词 现在分词 在所修饰词前,有些放在所修饰词后 说明正在进行的动作,同它所修饰的动作存在着逻辑主谓关系 a sleeping boy, on the day following, for years running

过去分词 在所修饰词前,有些放在所修饰词后 表示被动的意思,多数不及物动词的过去分词不能用作定语,只有少数表示动作改变的动词表示在谓词动词动作之前完成 a lost child, a fallen leaf, retired workers, faded flowers

We have no time left.

Fill the blanks with the words given.

短语 不定式 放在所修饰词后 一般表示要做和应该做的动作。 1.He is the first one to come this morning. 2.I have a lot of housework to do at home. 3.There is a lot of work to do in the company. 4.He didn't have the chance to go to school in the past.

1)一般所修饰词是抽象名词agreement, attempt, claim, decision, decisive, determination, failure, hope, intention, need, plan, promise, refused, resolution, tendency, threat, wish

2)说明被修饰词内容的名词

campaign, chance, courage, efforts, evidence, fight, news, measures, move, movement, opportunity, position, power, reason, right, skill, strength, struggle, means

3)跟不定式作状语的形容词生成转化来的抽象名

ability, ambition, anxiety, curiosity, eagerness, impatience, reluctance, willingness

分词 放在所修饰词后 现在分词短语有动作进行之意。

过去分词短语有被动之意。 The bird singing in the tree is very beautiful.

This is the bird shot by the boy.

My brother, working in the south will be coming in a few days.

 6. 非谓语动词作状语

非谓语动词 意义和用法 例句

不定式 表示目的,很常用。 He went home to see his mother.

He came to ask a question.

He got up early in order to (so as to) have time to study.

表示结果,很常用。 She says so well as to bring down the house.

Will you be so good as to tell him this?

He is not old enough to do this.

He is too excited to speak anything.

表示原因, He laughed to see them fall down.

He wept to hear the news.

表示选择和比较 She opened her lips as through to speak

He would die rather than give in.

表示条件 To hear him talk, you would think he was tiring.

分词 表示时间,相当于表示时间,相当于状语从句when, while。 He went through the papers while having breakfast.

Since leaving school, I met him only once.

常用于这些连词后when, before, while, after, since

表示原因,有时同用作时间状语的分词难以分清,相当于原因状语从句because, since, for 和 as。 Being ill, he didn't come.

Not understanding this, he asked the teacher about it.

表示条件,相当于条件状语从句if。 Given more time, I can finish the work.

We'll not attack unless attacked.

Working hard, you'll succeed.

表示让步,相当于让步状语从句 though, although。 Though warned of the danger, he still went skating on the thin ice.

表示结果,相当于结果状语从句,这种分词前通常有thus 或thereby。 Their car was caught in a traffic jam, thus causing the delay.

表示方式或伴随情况,分词短语没有相当的状语从句,汉译时一般译成并列复合句 They shook hands, smiling at each other.

The children ran out of the room, laughing and talking merrily.

He lay on his back, his legs drawn up.

He made the boy sit there, promising they would not hurt him.

表示方式 He sat there, as though waiting.

7. 非谓语动词作同谓语

非谓语动词 意义和用法 例句

不定式 不很常用

  He has written two articles for the journal, one to be published in this issue, the other to come out in the next.

 

动名词 不很常用 I saw many people in the room, some talking, some listening.

His chief hobby, sailing a boat, cost him most of his salary.

8. 非谓语动词作插入语

非谓语动词 意义和用法 例句

不定式 多是一些特定的短语 To tell you the truth, to be fair, to be frank, to be short, to be sure, to be honest, to begin with, to cut a long story short, to be exact, so to speak

To tell you the truth, I don' t know computers very well.

动名词 多是一些特定的短语 Generally speaking, frankly speaking, strictly speaking.

Generally speaking, his work is successful.

四. 非谓语动词的特殊形式

形式 非谓语动词 意义和用法 例句

复合结构 不定式 for sb to do sth这种结构可用先行代词it作形式主语面将该结构后移作真正主语。 It is impossible for me to do this.

It is for you to decide.

It is time for us to do this.

There is a lot of work for us to do.

I'd like you to do it.

常引导该形式的形容词有:dangerous, easy, useful, hard, difficult, strange, astonishing, pleasant, fortunate lucky, necessary, reasonable, right, wrong, natural, interesting.

with+名词或代词 to do sth的复合结构表示将要发生的动作 I feel quite easy, with her to help me.

 

It (That) is +形容词 of to do sth. 表示性格特征,行为表现。 It kind of you to help me.

常引导该形式的形容词有:absurd, bold, brave, careful, careless, cruel, considerate, clever, cunning, clumsy, decent, foolish, good, honest, impudent, naughty, nice, polite, right, rude, silly, splendid, wise, wrong, wonderful, thoughtful.

send, bring, take 等动词表目的时,可带出自己的逻辑主语。 The king sent the official to have a look.

动名词 动名词之前的名词,如果是有生命的,通常用所属格表示,如果是无生命的,则用通格表示,现在有一种趋势用名词和代词代替所有格。 His coming won't help much.

I don't mind your (you) smoking.

They insisted on our staying there.

We are happy about his coming to see us.

Do you remember Mary coming to see you?

I objected to you smoking here.

分词

  分词短语作状语时,一船没有自己的主语,其逻辑主语就是整个句子的主语,但有时分词短语可以有自己的主语,由名词和代词表示放在分词短语之前,它们存在着逻辑主谓关系 He stood there with his hand rising (raised).

We walked in, he leading the way.

Greeting being over, they got down to business.

He cried suddenly, tears rolling down his checks.

His leg being badly hurt, he had to sty in bed.

There being nobody in the room, we didn't go in.

无主语句子 不定式 多用于否定形式。 Why stay in the room? Why not ask the teacher?

动名词 征求别人意见。 What about playing basketball?

How about going to see a film?

感叹句 不定式 多表示要发生的事。 To think how I started!

To invite him! You are asking for trouble.

分词 表示的意义根据句子而定。 Going to Beijing! What for?

Finished my book! I have just started.

其它形式 不定式 相当语这些疑问代词和副词引导的从句。 What to do next has not been decided.

What worries me most is how to do it

I don't know how to leave.

We are seeking the way in which to make the work easy.

It is not yet decided whether to discuss this.

常见引导该形式的动词有:decide, find out, forget, inquire, know, learn, remember, see, settle, think, understand, wonder

分裂式不定式,被副词分开。 He wants to really know this.

动名词 用do和go构成的短语。 Go shopping, (hunting, fishing, swimming, walking, dancing, skating, skiing)

Do some reading (shopping, sewing, washing)

分词 悬浮式分词, 可以和主句的主语不一致。 1) admitting that…, supposing that…, provided (that)…, regarding, seeing that…, concerning that…, granted…, owing to dangle

2) talking about…, judging from..

Judging from his clothes, he is a doctor.

五. 非谓语动词的否定形式

形式 非谓语动词 位置 例句

一般形式 不定式 放在不定式符号前,如果是省略不定式形式放在动词前 I want not to go home. I let him not go home.

He promises never to go there again.

He got up early so as not to (in order not to) miss the train.

动名词 放在动名词前 Excuse me for not coming earlier.

分词 放在分词前 Not knowing this, he didn't come.

Not having told when to start, he came late.

特殊形式 不定式 主动形式否定意义 He was too excited to speak.

动名词 no和without引导的短语 No smoking. He left without saying good-bye

英语中将来时的表示形式

表示将要发生的动作和状态在英语中用将来时,将来时在英语中有多种表达形式,为了掌握它们的区别和用法,下面笔者对它们进行分类总结。

形式 动作行为 时间发生 语气和情态 意义和用法 例句

will/shall +v 主观或客观 近期或远期 含有情态的色彩(意想,决心), 表示在将来某一时间会发生或经常发生的动作或存在的状态。可用于表示不以人们的意志为转移的事。 Tomorrow will be Sunday.

Tom will be 20 next year.

Will you go to the party tonight?

to be going to +v 主观 近期 主语的意图 表示即将发生的事或最近打算进行的动作。多用于口语中,表示说话者的意图,推测和打算,可表示自然和生理现象。 I think it is going to rain.

She is going to have a baby.

They are going to get married next week.

The bridge is going to collapse.

be +ving 客观 近期 较婉转 表示按计划和安排即将发生的动作。动词多是一些“来去”移动词,如:go, come, leave, start, move, sail, arrive, reach, stop, return, stay, drive, travel, remain, land等。 President is speaking on the air tonight.

He is leaving for Beijing tomorrow.

The plane is landing soon..

to be to +v 客观或主观 近期或远期 职责和义务 表示按计划,安排即将要发生的动作, 或征求对方的意见或表示命令。受人们的意志所支配。比较正式。 Am I to go on with the work?

We are to turn out 10000 cars next year.

You are to take the trip.

v 客观 近期   表示根据规定或时刻预计要发生的动作或状态。一般有时间状语, 强调动作是不可改变的,动词多是那些表“来去”“起止”的动词,如:arrive, begin, close, come, depart, dine, end, go, leave, meet, open, part, stat, sail, stay, stop, return等,可用表状态的"be",表示年龄和日期。一般用于肯定句。 The plane leaves at six.

This term starts on 1st September.

Tomorrow is Saturday.

I am fifty in May.

will/shall be+ving 客观或主观 近期或远期 语气婉转,没有情态的色彩 表示将要发生的动作,有弦外之意,表示事情的正常进程,在计划之中。 I will be seeing him this morning.(Do you want me to do something for you.)

I don't think I will be using that book next week.

When will you be seeing the president?

to be about to+v 主观或客观 近期   表示将要发生的动作。一般不带表示将来的时间状语。 They are about to leave.

Autumn harvest is about to start.