then 有什么区别

Question

1.The Americans did not find it interesting at the time, so he exported it to his London agents and it became very popular in Britain. The game was 'then' played across dining-room tables, or on the floor with the net strung between chairs.

2.A few years later a hollow ball like the one we use today was invented. The game 'then' quickly spread all over the world. A man called Mr. Wood, of London, had the idea of covering the bats with studded rubber to give greater control over the ball.
This is so confused .希望高手教师帮忙 吧

Answer 1

on
来自古英语on, an
prep
在…上
sth. on the table
在桌上的东西
a ring on her finger
她手上的戒指
(= upon)
He stood on the clifftop looking out to the sea.
他站在悬崖顶上眺望大海。
The naughty boy sat on the edge of the fence dangling his legs.
"淘气的小男孩坐在栏杆边上,两腿悬空。"
（悬挂、固定）在…上
There is a list of our lessons on the wall.
墙上有我们的课程表。
(= upon)
朝，向
on my right
在我右边
to make an attack on the enemy
向敌人进攻
(= upon)
I'll meet you on / at the corner of Smith Street and Main Road.
我将在史密斯大街和湎洇路的十字路口与你会面。
关于
a lesson on history
历史课
a book on breeding rabbits
一本有关养兔的书
当…时候，在…时
on Monday
在星期一
on October 1st
在10月1 日
在…后立即
Some magazines pay on acceptance, others on publication.
一些杂志采用稿件后即付稿酬,另外一些则要到发表后才付。
on thinking the matter over
仔细考虑这件事之后
(= upon)
On whose authority are you putting these posters here?
你们得到谁的许可在这儿贴广告?
The glass hit the corner of the table and broke on impact.
"玻璃杯碰到桌子角上,撞了个粉碎。"
以…方式；靠
to travel on the ship
乘轮船旅行
They live on potatoes.
他们靠吃马铃薯生活。
(= upon)
在…情况下；处于…状态
on purpose
故意地
These officers are on leave.
这些军官在休假。
He went to Hong Kong on business.
他到香港出差去了。
The chief physician of the hospital is on circuit for most of the year.
这个医院的主任医师一年中大部分时间都在作巡回医疗。

on
adv
继续着
He worked on right through lunchtime.
午餐时间他还在工作。
The whole group worked on and on all night.
全组人员连续不断地干了个通宵。
更远地；再向前地
Time is getting on.
时间渐晚。
Shall we go on?
我们继续向前吗？
开；处于工作状态中
Switch the radio on.
打开收音机。
Put the alarm clock on for 7 o'clock.
把闹钟拨到七点。
固定上
to sew the button on
钉钮扣
（时钟）拨前地
on
adj
开着的
Is the gas on?
煤气开着吗？
The radio's on but it isn't working.
收音机开着，但不响了。
Is the water / electricity on yet?
自来水/电通了吗?
发生着的；正在进行中的
A new film is now on.
现在正在上映一部新的电影。
Is the match still on?
比赛还在进行吗？
What's on television tonight?
今晚电视还有什么节目？
What's she on about now?
她又在唠叨些什么了?

upon
prep.
=on
向上; 位于高处
逼近; 接触
紧接着
The enemy was upon us.
敌人逼近我们。
The Christmas holiday will soon be upon us.
圣诞节马上就要来到了。

【说明】upon或on
一般可通用, 但有以下区别:
表示日期时一般只用on, 不用upon
在某些习语中, upon和on 不能互相替换, 如:upon my word, once upon a time, on no account
在句末或分句末的动词不定式后往往用 upon, 不用 on, 如:nothing to defend upon
on比upon通俗

--------------------------------

in
prep
在…内；在…中；在…里面
There is a pencil in the box.
匣子里有一枝铅笔。
He was standing in the room.
他站在房间里。
在（某区域）…内；在…里
in school
在学校
He lives in London.
他住在伦敦。
在…之中
The volcano is in eruption.
火山正在喷发。
The roses are in flower now.
现在玫瑰正盛开。
从事（工作）；在…方面
to engage in trade
从事贸易
to be weak in English
在英语方面不佳
穿着；戴着
dressed in rags
衣衫褴褛
the man in the top hat
戴着大礼帽的那人
in uniform
穿着制服
a prisoner in irons
戴着镣铐的囚犯
往；向（某方向）
in this direction
朝此方向
in all directions
四面八方
用
to write in ink
用墨水写
to speak in English
用英语讲话
在…期间
in the 20th century
在20世纪
in summer
在夏天
in my absence
在我不在的时间
in his youth
在他年轻时
in the morning
早晨
在…时间内；不到…的时间；在…之后
It's two o'clock. I'll come in an hour.
"现在是两点钟,我一小时后来。"
I'll come and see you again in five days.
过五天我再来看你。
（表示事情进行或发生的方式） in fun 玩笑地
（表示关系或比率）每
Not one in ten of the boys could spell well.
这些男孩中拼写正确的不到十分之一。
（表示数或量） in great numbers 许多
在…方面；关于
weak in judgment
判断力差
"The new generator is large in capacity, small in size and low in coal consumption."
这台新发电机发电量大、体积小、耗煤量低。
The two international companies are working in collaboration with each other in the development of new software.
两家跨国公司在开发新软件方面相互合作。
处于…状态
in a rage
在愤怒中
in a hurry
匆忙地
in love
恋爱中
作为

in
adv
在内
在家
Is there anyone in?
有人在家吗？
My husband won't be in until six o'clock.
我丈夫要到六点钟才在家。
向中心点集中
时髦；流行
in
adj
在内的，内部的，生活在里面的
流行的，时髦的
小圈子的，小集团的
in
n
the ins and outs (of sth.)
详情；细节

in, after这两个介词都可以用来表达“在若干时间之后”。in 可以用于将来时态或一般过去时态的句子中；after 用于一般过去时，如果表示某时刻之后或某件事之后，则不受时态的限制
In a short time she was busy eating.
一小会儿功夫之后她便忙着吃起来了。
It would strike twelve in twenty minutes' time.
大约20分钟之后就要打12点了。
They said the building would be completed in a year.
他们说那座楼将在一年后建成。
After a time. we noticed a snake-charmer at the other side of the square…
过了一会儿之后，我们看到广场的另一边有个玩蛇的……
After a year and a half of war Russia was defeated.
一年半的战争之后俄国被击败了。
He left here after our arrival.
我们到达之后他离去了。
I seldom go out after 10 o'clock.
我在十点钟之后很少出去。

in
adv.
在家; 在屋里
Is (there) anybody in?
有人在家里吗?
进入; 入
Bring him in.
把他带进来。
朝里; 在里头
Step in, please.
请进去。
上市; 登市
Strawberries are now in.
草莓现在上市了。
(农作物)已收割完
The wheat crop is safely in.
小麦已经毫无损失地收到家了。
时髦; 流行
Long skirts are in again.
长裙又时兴起来了。
当政; 在朝; 当选
The Labor Party was in.
工党执政。
(火)燃烧着; (灯)亮着
The fire is still in
火还在燃烧。
(板球、棒球) 击球
(车、船) 到达; 抵岸; (季节)来临
Spring is in.
春天来了。
(油井)正出油
The well has come in.
这口油井开始出油了。
(法令等)在执行中; (证据等)在手头
The work are now in progress.
工程正在进行。
in
adj.
[用于名词前]
在里面的, 朝里面的
执政的; 在朝的
(车、船等)到站的; 抵岸的
时髦的; 流行的
an in door
朝里开的门
the in party
执政党
the in train
到站的火车
the in thing to do
流行的事情; 时髦的作法
in
n.
[常用复]执政者; 在朝派, 有权者
内情; 细节
[俚]入口
权势; 势力
[常用复](板球)攻球方
all the ins and outs of a problem
问题的来龙去脉

all in
[美俚]累积起来总共, 一切包括在内
be in at
参加, 参与
be in for
遭受; 参加(竞赛等); 请求得到(工作, 职位, 空缺等)
be in for it
陷入困境; 骑虎难下; 势必受罚, 难免倒霉; 怀胎, 有孕
be in it
[口]从事; 参加在内
be in it up to the neck
深陷; 沉迷
be in on it
[口]熟悉内情; 参与(计划等)
day in, day out
一天又一天; 日复一日
day in and day out
一天又一天; 日复一日
have it in for sb.
[美、口]对某人怀恨在心, 伺机报复
in and out
进进出出
弯弯曲曲
in between
在...之间
in on
参加, 参与
知道, 熟悉
in with
和...相处得很好, 和...有交情
接近(陆地)
In with it!
把它装进去吧!
In with you!
[口]进里面去吧!
ins and outs
详情、细节; 底细, 来龙去脉
道路的迂回曲折
执政党和在野党
[英]【史】经常被收容到习艺所的贫民

-----------------------------------------

at
prep.
[位置、场所、地点]在、于、到、经由
arrive at one's destination
到达目的地
at the seaside
在海滨
at my uncle's
在我叔父家
atthe foot[top] of the mountain
在山脚下[顶上]
at sb.'s heels
跟在某人的后面
at the end of the street
在街头
at the meeting
在会议上
at the wedding
在婚礼上
I landed at Wuhan.
我在武汉下飞机。
He lives at Oxford.
他住在牛津。
Smoke comes out at the windows.
烟从窗户冒出来。
Keep such men at a distance.
不要与这种人接近。
[表示时间:时刻、年节、年龄]
at ten o'clock
在十点钟
at (the age of) forty
在 40 岁的时候
at the beginningof the month
在月初
at Christmas
在圣诞节
at all hours
随时
从事, 做, 正在, 在
He died at his post.
他殉于职守。
What are you at ?
你正在干什么?
I will go now at my lesson.
我要着手做功课。
[条件、情况、 状态]在...中, 在...下, 以...方式
at war
交战状态
at its height
在最高点; 处于最盛时期; 处于高潮状态
at your convenience
在你方便时
at standstill
停顿状态
at your pleasure
随你方便, 由你决定
at high pressure
在高压下
[动作的姿态, 常不译出]以, 用
at a bound
一跳, 一举
at a gallop
飞奔, 奔驰
at a mouthful
一口(就吞下)
at every step
每走一步
[动作的目标、方向]向、对
Aim straight at the mark.
对准目标。
The boy threw a stone at the bird.
小孩掷石头打鸟。
The soldiers rushed at the enemy.
战士们向敌人冲去。
The dog ran at a cat.
狗向猫扑去。
[原因、根源]照, 依照, 由, 从
be pleased at the result
对结果感到高兴
melt at a great heat
因高热而熔化
be surprised [frightened] at sb.'s words [the news, the noise]
听到某人的话[新闻、声音]而吃惊
The baby stopped crying at the sight of its mother.
婴儿看到母亲就不哭了。
I did it at his request.
我是应他的请求而做的。
[程度、比例、价格]以, 用, 有
sell at five dollars
以五元(价格)出售
walk at the rate of four miles an hour
每小时四英里的速度行走
estimate a crowd at ten thousand
这一群人估计有一万人