English | 玄数

2015-11-02

选一选

He was a good student and scored _________ average in most subjects.

A. below B. of C. on D. above
Answer

一、介词的位置

1. 名词或代词前

A little girl sat down beside Tom. …………… 一个小女孩坐在汤姆的旁边。
I have said nothing against him. …………… 我没有说过反对他的话。

2. 句尾

I’ll send someone to show you around. …………… 我会派人带你周围参观一下。
The others are a long way behind. …………… 其他人远远地落在后面。

( 1 ). 当陈述句以结构为 “ 介词 + whom / which / what / whose ” 时,改为的疑问句常把介词放在句尾

I am talking with someone. ………………… 陈述句:我在和某人说话。
With whom are you talking? ………………. 改为疑问句原型:你在和谁说话?
Who are you talking with? ………………… 把介词放在句尾并把 whom 改为 who

( 2 ). 定语从句中 介词 + that / whom / which 时,介词放在句尾

She is a teacher that I once worked together with. ……….. 她是一位曾经和我一起工作的老师。

3. 紧跟动词后

Her father die of cancer. …………… 她爸爸死于癌症。
The river runs through our village. …………… 这条小溪流淌于我们的村庄。

二、介词短语的用法

介词短语由两个或以上的单词构成,如:because of, made from, get out。介词短语可在句中作定语、状语、表语和宾语补足语

1. 做定语,此时介词短语后置于被修饰的名词

The girl dressed in white is Tom’s sister. …………… 穿白衣服的女孩是汤姆的妹妹。
She is a beautiful girl with a dark heart. …………… 她是长着美丽面孔却心肠黑恶的女孩。

2. 作状语

I arrived London at 6:30 afternoon. …………… 我于下午6:30到达伦敦。
Outside the window it is a wonderful spring morning. …………… 窗外是一个美好的春天早上。

3. 做表语

The weight is under 10kg. …………… 重量在10公斤以下。
The globe is on the table. …………… 地球仪在桌上。

4. 作宾语补足语

He lifted a cup off the table. …………… 他从桌上举起一个茶杯。
I’ll send someone to show you around. …………… 我会派人带你周围参观一下。

练习. He sold his car ________ $2000.

A. by B. with C. for D. in
答案(把鼠标放上即可看到)


2015-11-02

选一选

 Graduation is a good time to thank those who have helped you ______ the tough years.

A.  through B.  up C.  with D.  from
Answer

一、at 用于表示时刻、时间的某一点

at 4:00 (o’clock) 在4点钟 at present 目前
at that time 那时 at first 起初
at the same time 同时 at last 最后
at the moment 此刻 at times 偶尔,有时
at lunch 在午餐时 at this time of (the)  year 在一年中的这个时候
at noon 在正午 at the end of (the)  year 在年末
at night 在夜间
I arrived London at 6:30 afternoon. …………… 我于下午6:30到达伦敦。
At last, I belived him. He is a nice man. …………… 最后,我相信他了。它是一个好人。

二、on 用于表示确定的某一天,某一天上午、下午、晚上

on March (the) third 在3月3日
on September (the) 15th, 1870 —— 在1870年的9月15号
on Sunday 在星期天
on Sunday morning 在星期天的早上
on the morning of September (the) 15th, 1870 —— 在1870年的9月15号的早上
on Children’s Day 在儿童节
on the New Year’s Eve 在除夕
We dont’ have any lesson on the next Sunday morning. …………… 星期天早上我们没有课。
Mary and Lucy have a funny time on Children’s Day. ……….. 玛丽和露西在儿童节玩得很愉快。

三、 in 用于表示月、季节、年份、世纪,和泛指的上午、下午、晚上

in January 在一月 in 1870 在1870年
in June 在六月 in September, 1870 —— 在1870年的9月
in spring 在春季 in the 21st century 在21世纪
in Autumn 在秋季 in the new year 在新年
in the morning 在早上 in the Spring Festival 在春节
in the afternoon 在下午
in the evening 在晚上
In the daytime, I will meet you as before. …………… 白天,我会像往常一样与你见面。
Do you have any plan in the new year? …………… 新的一年你有什么计划吗?

四、对比

in 1870 在1870年
in September, 1870 —— 在1870年的9月
on September (the) 15th, 1870 —— 在1870年的9月15号
in the morning 在早上
on the morning of September (the) 15th, 1870 —— 在1870年的9月15号的早上
in the new year 在新年
on the New Year’s Eve 在除夕

五、 from —— since

from:从 … 起,一般用词组 from … to … ;而 since 则表示:自从,从 … 至今,常用于现在完成时、过去完成时

She is singing from morning to night. …………… 她从早上一直唱到晚上。
I haven’t heard from him since last year. …………… 自去年起我就再也没听到他的消息了。

 

补充:时间、日期 Time & Date 如何表示

询问时间的方式: What’s the time?

What time is it?

Do you have the time please?

询问星期的方式: What day is it today?

What day is it tomorrow?

What day was it yesterday?

询问日期的方式: What is the date?

What was the date?

练习. He will be back ________ .

A. in 10 minutes B. 10 minutes later
C. after 10 minutes D. 10 minutes after
答案(把鼠标放上即可看到)


2015-11-02

选一选

 Shirley, a real book lover, often brings home many books to read _________ the library.

A.  in B.  for C.  by D.  from
Answer

一、 分类

介词是一种用来表示词与词、词与句之间的关系的虚词,在句中不能单独作句子成分。介词后面一般有名词代词或相当于名词的其他词类,短语或从句作它的宾语。

1.  简单介词:由一个单词构成的介词,如:at ,   by ,   from ,   on

2.  以 ing 结尾的介词,这类介词由现在分词转变而来:including ,   consedering

3.  合成介词,由两个单词连写而成:into ,   within ,   upon

二、常用介词

<a>.  about ,    above ,    across ,    after ,    against ,    along ,    among ,    around ,    as ,    at

1.  about

关于: What are you talking about?

大约: How long is the hospital from here? —— It’s about 100 meters, sir.

在附近: I lose my book somewhere about the lake.

短语 —— be about to(正要 …),  what about(你觉得 … 怎么样?),   how about(怎么样?)

2.  above

在 … 的上面:The moon is now above the trees.

高于,超过: The number is above 10 thousand.

短语 —— above all(尤其,最重要的是)

3.  across

横过,穿越:Can you swim across the river?

交叉:The two lines cut across each other.

短语 —— cut across(径直穿过,抄近路走)

4.  after

在 … 之后(时间):He will return after three o’clock.

在 … 后面(方位):Shut the door after you please.

短语 —— after all(毕竟),  day after day(日复一日)

5.  against

逆向:We sailed against the wind.

反对:Public opinion is strongly against his visit to the country.

对 … 不利:I have said nothing against him.

防御:The building was insured against fire.

短语 —— lean against(靠在…,倚在…)

6.  along

沿着,顺着:Excuse me, where is the museum please ? —— Walk along the street and then turn left at 1st corner.

短语 —— along with(与 … 在一起)

7.  among

在 … 之中(>2):A great of bees are flying among the flowers.

短语 —— among others(尤其,格外)

8.  around

到处,周围:I’ll send someone to show you around.

大约,在 … 附近:It’ll be finished around Christmas.

短语 —— 转身,离去

9.  as

像,如同:The old woman was dressed as a young lady.

作为,以 … 身份: As a student, we should learn hard.

短语 —— as far as(直到),  as for(至于,关于),  as good as(和 … 一样),  as if / as though(好像),   as long as(只要),  as much(也,同样),  as much as(差不多),  as often as(每当),  as soon as(立刻),  as to(至于,关于),  as well(也,还),  as well as(不但,而且),  as yet(迄今为止)

10.  at

在 … 地点:Tom is at home.

在 … 时刻:I arrived London at 6:30 afternoon.

在 … 方面:He is an expert at troubleshooting.

以 … 价格、速度: The cake is sold at 1dollar a dozen.

短语 —— at all(根本,完全),  at any cost(无论如何,不惜任何代价),  at best(至多),  at least(至少),  at most(至多)

 

<b>.  before ,    behind ,    below ,    beside ,   besides ,    between ,    beyond ,    but ,    by

1.  before

在 … 之前(时间): You should back home before 9 o’clock today.

在 … 前面(方位): A lazy dog is sleeping before the gate.

短语 —— before long(不久),   long before(很久以前)

2.  behind

在 … 后面(方位): There is someone behind the tree.

落后于:The others are a long way behind.

短语 —— behind with / in(拖延)

3.  below

在 … 下面(方位):Her skirt came below her knees.

低于,次于(身份地位):His position in the company is below hers.

短语 —— below the moon(月下,尘世)

4.  beside

在旁边:A little girl sat down beside Tom.

无关,离题:That’s beside the point.

5.  besides

除 … 之外:There had come 50 people besides you.

6.  between

在…之间(指时间、空间、顺序等):These books were written between 1736 and 1770.

介乎…之间(数量、距离、程度等): He is a man between sixty and seventy.

链接在…之间:It’s about 1.2 km between these two hills.

短语 —— between you and me(只有我们两人知道,私下说)

7.  beyond

在…的那一边:Beyond the mountains is a thick forest.

超出:The situation is beyond his control.

除…之外:He did nothing beyong what he was told to do.

短语 —— beyond control(无法控制)

8.  but

除…以外(用于nothing,nobody,who,all 等词后面):No one saw it but me.

短语 —— but for(要不是,如果没有),   nothing but(只不过是),  anything but(绝非),  all but(几乎,差不多),  cannot but(只好)

9.  by

在旁边:He is sitting by the lake.

通过,经过:They came by the nearest road.

以 … 方式:I got the news by ” New York Times “.

在 … 之前(时间):We had to get there by evening.

被,由:The homework was assigned by the teacher.

根据,按照:Never judge a man by his look.

短语 —— step by step(逐步),  by chance(偶然),  by far(最,到目前为止),  by way of(经由)

 

<d>.  down ,   during

1. down

沿着:Walk directly down the road and you’ll get to the square.

在 …下方:Their house is half-way down the hill.

短语 —— get down(下来,写下),  bring down(使倒下,使减少),  break down(失败,故障),  get down(下来,写下),  look down on(轻视,看不起),  put down(放下,镇压)

2.  during

在 … 期间:A great people die during the World War II.

 

<e>.  except

除 … 之外:We go there every day except Sunday.

短语 —— except for(除 … 之外,要不是由于)

 

<f>.  for ,   from

1.  for

为了:What I have done that’s only for you.

替代:We used boxes for chairs.

对于,在 … 方面:
I am too old for the job.

因为:I won’t go out today for the bad weather.

短语 —— for all(尽管,虽然),  for ever(永远),  for good(永久地)

2.  from

从 … 起:
She is singing from morning to night.

来自: Where do you come from?

依据:I judge it’s wrong from what she told me a week ago.

区别:He is old enough to know right from wrong.

排斥,阻止:The pill will relieve you from pain.

由 … 制成(不可见原材料):The wire is made from rice.

短语 —— from A to Z(从头到尾),  from now on(从现在开始),  far from(差得远)

练习. .  He sold his car ________ $2000.

A. by B. with C. for D. in
答案(把鼠标放上即可看到)


2015-11-02

选一选

Don’t read ________ bed.  Don’t read ________ the sun.

A. on; under B. on the; under C. in; in D. in; under
Answer

一、at 用于表示比较狭窄的场所

at home 在家 at the head of 在 … 排头
at the gate 在门口 at the end of 在 … 末尾
at the station 在火车站 at the top of 在 … 上面 / 顶部
at the bus stop 在公共汽车站 at the bottom of 在 … 下面 / 底部
at the party 在聚会上 at the back of 在 … 后边
Let’s meet at the gate of the park. …………… 让我们在公园的门口等。
There is some juice at the bottom of the cup. …………… 杯底下还有一些果汁。

二、in 用于表示比较宽敞的场所

in Beijing 在北京 in the air 在空中
in China 在中国 in the open air 在户外
in Asia 在亚洲 in a room 在房间里
in the world 在世界上 in the picture 在图片中
He lives in Beijing. …………… 他生活在北京。
We can see many beautiful girls in the picture. …………… 从图片中我们能看到很多美丽女孩。

三、 城市、省份与国家、国家与国家的地理位置关系

Shanghai is in the east of China.
GuangDong is in the south of China.
Tibet is in the west of China.
Inner Mongolia is in the north of China.

国内的城市、省份与国家的地理位置关系用 in

 

Japan is to the east of China.   ………………日本在中国的东边。(不接壤的,用 to)
Vietnam is on the south of China.  ……………..越南在中国的南边。(接壤的,用 on)

四、 up —— down, over —— under, above —— below 互为反义词

1.  on: 在 … 上,通常是指表面上的;还用于表示:靠 … 一边,如:on the left,on the right

The globe is on the table. …………… 地球仪在桌上。
Walk alone this road and take the second turnning on the right.
沿着这条路一直走到第二个拐角转右。

2.  up:在 … 之上,向 … 的上游; down:在 …下方:沿着往下走

Her room is up those stairs. …………… 它的房间在楼上。
Walk directly down the road and you’ll get to the square.
沿着这条路走下去,你会到达广场。

3.  over:在 … 之上,在正上方; under:在 … 下面,正下方

There is a bridge over the river. …………… 河上游一条桥。
Mary, what are you putting in under the bed? …………… 玛丽,你在床下放了什么?

4.  above:在 … 的上面(不一定是正上方),不与表面接触; below:在 … 下面(不一定是正下方)

The moon is now above the trees. …………… 月亮在树上。
Her skirt came below her knees. …………… 她的裙子到了膝盖下。

练习. China lies ________ the east of Asia and ________ the north of Australia.

A. to ; to B. in ; to
C. to ; in D. in ; on
答案(把鼠标放上即可看到)


2015-11-02

选一选

 Sometimes proper answers are not far to seek ________ food safety problems.

A.  in B.  to C.  on D.  after
Answer

<i>.  in ,   into ,   inside

1. in

在 … 里面:There are five apples in the box.

在 … 时间内:Oh, my god! I must finish this article only in two days.

在 … 方面:He is lacking in courage.

穿着:The girl dress in white is Tom’s sister.

用,以:They paid in cash.

为了,作为:What do you give him in return?

短语 —— in a word  /  in brief  /  in short(简而言之),   in any case  /  in any event(无论如何),  in case(万一),  in this case(既然这样),  in danger(处于危险中),  in fact(事实上),  in favor of(有利于),  in front of(在前面),  in return(作为报答),  in sight(被看到),  in time(及时)

2. into

进入:She gone into the room and saw a patient lying in bed.

转为,成为: Look, it turns into green.

3. inside

在 … 里面:He parked his car inside the gate.

短语 —— inside of(少于,在 … 之内),  inside out(彻底地)

 

<o>.  of ,   off ,   on ,   onto ,   out ,   outside ,   over

1. of

… 的,属于:I want to take an egg of Mary.

在…方面:My aunt is hard of hearing.

由于:Her father die of cancer.

由 … 制成(可见原材料):The table is made of wood.

同为关系:The city of Beijing is very beautiful.

2. off

离开,隔着:He lifted a cup off the table.

戒掉,停服:He is off smoking.

低于,折价:He offered to take 10% off the price.

短语 —— take off(脱下,起飞),  pay off(海清债务;报复),  cut off(切断,切掉),  off duty(下班), off line(离线,断线),  power off(关闭电源)

3. on

在 … 上:The globe is on the table.

靠,根据:We live on wages.

在 … 的时候:He jumped with joy on hearing the news.

带在身上:Have you identity papers on you?

短语 —— put on(穿上,上演),  take on(承担),  come on(上演,开始,跟着来),  on account of(由于), on and off(断断续续地),  on and on(继续不断地), on board(在船上,在飞机上,在火车上),  on leave(休假中),  on line(联机,在线),  on one’s own(独立无助地),  on sale(廉价出售),  on the one hand   /  on the other hand(一方面 / 另一方面)

4. onto

到 … 之上:The boy climbed onto the roof top.

5. out

向外:He took out a book from the case.

短语 —— knock out(击倒),  out of(从中,脱离,缺乏),  out of office(离职)

6. outside

在 … 外,向 … 外:Outside the window it was a wonderful spring morning.

7. over

在 … 之上,在正上方:We live over a small bookstore.

越过:A plane flew over the house.

短语 —— over again(再一次,重新),  over and over(一再的,再三的)

 

<p>.  past

通过,经过:The boys walked past our house.

 

<s>since

自从,从 … 至今(常用于现在完成时、过去完成时):I haven’t heard from him since last year.

短语 —— ever since(自从)

 

<t>.  than ,   through ,   to ,   toward ,   towards

1. than

比:My aunt stayed here for more than a week.

2. through

穿过,通过:The river runs through our village.

用,凭借:She got the position through her hard work.

从 … 开始至终,在 … 整个期间:
He read through the manuscript.

短语 —— throught and throught(彻底的)

3. to

向,往:He go to the market.

直到:He wrote from morning to night.

趋于:The situation has gone from bad to worse.

属于,归于:I’ve lost the key to the house.

比:They won 4 to 3.

短语 —— as to(至于,关于),  prefer to(宁愿),  due to(由于),  in addition to(除 … 之外)

4. toward

朝,向:They drove toward the beach.

接近,将近:Toward dawn we found ourselves in a large valley.

5. towards

朝,向:I saw her walking towards the bank.

将近,大约:She is towards sixty.

 

<u>.  under ,   until ,   up ,   upon

1. under

在 … 下面,正下方:Mary, what are you putting in under the bed?

少于,低于,未满: The weight is under 10kg.

在 … 条件下:We cannot carry out the project under such situation.

短语 —— under age(未成年),   under cover(隐藏着),  under way(进行中)

2. until

直到 … 才(用于否定句):She didn’t go to bed until eleven o’clock.

直到:Can this cake keep fresh until tomorrow?

3. up

在 … 之上:Her room is up those stairs.

向 … 的上游,沿着:She walked up the path.

短语 —— up and down(来回地,到处),  up to(忙于),  pick up(捡起)

4. upon

在 … 之上:He laid a hand upon my shoulder.

短语 —— once upon a time(从前)

 

<w>.  with ,   within ,   without

1. with

与 … 在一起:I live with Tom.

支持,赞成:We are with you there.

有 … 什么特征:She is a beautiful girl with a dark heart.

随身:He had a gun with him.

短语 —— get along with(和睦相处),  in connection with(关于,与 … 相连),  in touch with(与 … 接触),  with one accord(一致的)

2. within

在 … 里面,在 … 内部:
He kept within doors all day yesterday.

不超过:I finish the homework within half hour.

3. without

无,没有:Without the sun, nothing would grow.

练习. China lies ________ the east of Asia and ________ the north of Australia.

A. to ; to B. in ; to
C. to ; in D. in ; on
答案(把鼠标放上即可看到)


2015-11-02

四、both … and、  not only … but also

1.  both … and 意为”和,既 … 也” ,作主语时,谓语动词要用复数

Both Lily and Luch like dancing. …………… 莉莉和露西都喜欢跳舞。
I like both English and mathematics. …………… 我爱英语和数学。

2.  both … and 用在否定句时表示部分否定

Both Lily and Luch doesn’t like dancing. ………… 莉莉和露西不都喜欢跳舞。(其中一个喜欢)
I don’t like both English and mathematics. …………… 我不都爱英语和数学。(喜欢两者之一)

3.  not only … but also 意为“不但,而且”,强调的重点是 but also 后面的部分。而且作主语时,谓语动词单复数由 but also 后面的词语决定

Not only my father but also I like classical music. ……….. 不仅爸爸,而且我也喜欢古典音乐。
I am not only their father but also their good friend.
我不仅是他们的父亲,而且是他们的好朋友。

4.  not only … but also 连接并列分句谓语句首时(并列主语除外),前面的分句要倒装

Not only is he a father, but also he is a good friend of ours.
他不仅是个父亲,而且是我们的好朋友。

五、either … or、 neither … nor

1.  either … or 表示“或 … 或 … , 不是 … 就是 …”,谓语动词的单复数由 or 后面的词语决定,用于否定句时是完全否定

Either he or I am right. …………… 不是他就是我是对的。
Either he or I am not right. …………… 他和我都不对。
I don’t like either jazz or rock.   …………… 爵士乐和摇滚乐我都不喜欢。

2.  neither … nor 表示“既不 … 也不 …”,谓语动词的单复数由 nor 后面的词语决定。它本身是完全否定,所以不能再加 not

The little baby can neither read nor write. …………… 这个小宝宝既不会读也不会写。
Neither he nor I am right. …………… 我和他全都不对的。
Neither he nor I am not right. …………… (×)

六、一些比较

Both Lily and Luch like dancing. …………… 莉莉和露西都喜欢跳舞。(两者都)
Either Lily or Luch like dancing. ……………  莉莉或者露西喜欢跳舞。(两者之一)
I don’t like both jazz and rock.  =  I like either jazz or rock.爵士乐和摇滚乐并不是我都喜欢。(部分否定,其中一个喜欢)
I don’t like either jazz or rock.  =  I like neither jazz nor rock.爵士乐和摇滚乐我都不喜欢。 (全部否定)

2015-11-02

一、and

1.  “和,还,而且”,连接对等关系的单词、短语、句子

I like reading and running. …………… 我喜欢读书和跑步。
Jack bought five apples and ate them all. …………… 杰克买了五个苹果,全都吃完了。
Lily likes pink and Lucy likes violet. …………… 莉莉喜欢粉红色,露西喜欢紫色。

2.  and 用在否定句时:一般用 or 连接否定句,但 and 也可以连接并列句的否定成分:并列成分在否定词之前、并列成分都有否定词

Lily and Lucy doesn’t like black. …………… 莉莉和露西不喜欢黑色。(并列成分在否定词之前)
We can’t live without air and water. …………… 没有空气和水,人不能生存。(双重否定)
Read in light which is not too bright and too dim is good for your eyes.
在不太亮也不太暗的光线下阅读对你的眼睛有好处。(并列成分都有否定词)

3.  祈使句, and + 陈述句,相当于 if 条件句

Hurry up, and you will catch the bus.  =  If you hurry up, you’ll catch the bus.
快点,你就会赶上公交车。
Show us the proof, and we will believe you.  =  If you show us the proof, we’ll believe you.
给我们展示证据,我们就会相信你。

二、or

1.  意思为“或者”时,用于两者之间选择一个,谓语动词的单复数由 or 后面的词语决定

Is he from UK or USA? …………… 他是来自英国还是美国?
Would you like coffee or tea? …………… 你想要咖啡还是茶?

2.  用在否定句,连接并列成分

He never smokes or drinks. …………… 他从不抽烟,也不喝酒。
Without gravity, there would be no air or sound of any kind.
没有地心引力,就没有空气和任何声音。

3.  祈使句, or + 陈述句,相当于 if 条件句,意思是“否则”

Hurry up, or you will miss the bus.  =  If you don’t hurry up, you’ll miss the bus.
快点,否则你就误了这班公交车。
Turn the heat down, or the food will burn.  =  If you don’t turn the heat down, the food will burn.
把炉火开小些,否则食物就烧焦了。

三、but

1.  “但是,可是,而” ,表示转折意思

Lily likes oranges, but Lucy doesn’t. …………… 莉莉喜欢橙子,但露西不喜欢。
He isn’t a teacher but a doctor. …………… 他不是老师,而是医生。

2.   表示“除 … 外”

No one but she knew about it exactly. …………… 除了她以外,没有人确切知道那件事。
He did nothing but sit there thinking. …………… 他什么都没干,只是坐在那儿思考。

3.  “仅仅,只不过,不管怎样”

He left but an hour ago. …………… 他离开了仅仅才半个小时。
You can but try it. …………… 不管怎样,你可以试试。

4.  never … but 表示“不 … 则以, 一 … 就”

It never rains but pours. …………… 不下则以,一下倾盆大雨。
I never see our teacher but I want to ask him questions. ……….. 我一见到老师就想问他问题。

2015-05-23

一、简介

1.  非谓语动词 Non-Predicate Verb 也叫做动词的非限定形式 Non-Finite Verbs,就是它们是动词的变化形式,保留动词的特点,但是不能单独做谓语。它们没有人称和数的变化,但有时态和语态的变化。非谓语动词有三种形式:

不定式 to do

动名词 doing

分词:现在分词 doing、过去分词 done

I go to buy a pencil. …………… 我去买铅笔。(不定式)
Saying is easier than doing. …………… 说比做的容易。(动名词)
China is a developing country. …………… 中国是一个发展中国家。(现在分词)
The glass is broken. …………… 玻璃瓶是破的。(过去分词)

2.  时态、语态对照

主动语态 被动语态 相对于谓语动作的时态
不定式 一般式 to do to be done 在谓语动作之后
进行式 to be doing 同时发生
完成式 to have done to have been done 在谓语动作之前
动名词 一般式 doing being done 同时发生
完成式 having done having been done 在谓语动作之前
现在分词 一般式 doing being done 同时发生
完成式 having done having been done 在谓语动作之前
过去分词 done 在谓语动作之前

(更多…)