1. spareone手机，sets是什么单位？

增值税发票上单位SET：增值税发票上单位SET是计量单位，套的意思，相当于“个” 。

计量单位set代表的是量词。因为翻译的不同，在不同情况下代表不同意思。例如：部、套、件、台、座、架、具等计量单位。

set作为计量单位时有不同的意思，具体如下：

1、作为文件的单位，表示：系列；套；份。例句：

There must be one set of laws for the whole of the country.

整个国家必须要有一系列统一的法律。

John has a complete set of her novels.

约翰有一整套她的小说。

We post up a set of rules for the house.

我们张贴了一份房屋生活守则。

2、作为网球、排球等球类比赛的单位，表示：盘；局。例句：

She won without losing a set.

她一盘未失，连连得胜。

3、作为某些成份数物件的单位，表示：套。例句：

The zoo is hoping dental experts can help the kangaroo and make a set of false teeth.

动物园希望牙科专家能帮助袋鼠做一套假牙。

You can borrow my keys. —— I have a spare set.

你可以借用我的钥匙。 —— 我还有一套。

There is a set of six chair.

那是六把成套的椅子。

4、作为人群的单位，表示：伙；帮；群。

2. for是什么标准的？

for的意思

prep. 为，为了；因为；给；对于；至于；适合于

conj. 因为

音标

英 [fə(r); strong form fɔ:(r)] 美 [fɚ; strong form fɔr]

短语

wait for 等候 ; 等待 ; 等待某人 ; 延期执行语句

apply for 申请 ; 提出申请 ; 请求 ; 申请工作

look for 寻找 ; 指望 ; 寻求 ; 惹来

except for 除了 ; 除……之外 ; 除

for sale 出售 ; 待售 ; 可销售的房子 ; 廉价出售

go for 袭击 ; 适用于 ; 竭力想取得 ; 喜爱

例句

1、Can you spare one of them for me?

你能把其中的一个匀给我吗?

2、She booked me down for next flight.

她已为我登记坐下一个航班。

3、I have ordered for you.

我已为你点好菜了。

4、She brewed some coffee for me.

她为我煮了些咖啡。

5、His friends will testify for him.

他的朋友们将为他作证。

3. satisfactory与spare的区别？

satisfactory是满意的意思，而spare则是备用的意思，区别可以从以下例子看出：

I feel so satisfactory about the proposal project, don't worry about the spare one, just go ahead with it. 我对这个提案项目感到很满意，不要担心多余备用的，继续吧。

4. one和a的区别是什么从词性和用法上说明？

1.词性和意思不同。 a：art. 一个；任一；一。 one：pron. 一个人；任何人；adj. 一的；唯一的；n. 一；num. 一；一个。 2.用法不同。 a是不定冠词，后面的单词以辅音音标开头，用法如下： 泛指一个。 There is a man standing in the river. 有一个人正站在河中。 置于单数可数名词前面表示泛指。 A boy is usually taller than a girl of his age. 同龄的男孩通常比女孩高。 当序数词不表示顺序，而是表示“再一，又一”的时候，使用不定冠词。 She invited him to come to the party a second time. 她再一次邀请他来参加聚会。 表示单位，有“每一”的意思，多表示次数、速度、价格等等。 We have meals three times a day. 我们每天吃三餐饭。 用在一些专有名词前面表示泛指。 A Mr. Wang called you. 一位姓王的先生给你打电话了。 抽象名词具体化。 It is an honour for me to give a speech. 对于我而言，演讲是一种荣誉。 在表示世界上独一无二的事物的名词前面，如果有形容词修饰，用不定冠词。 We need a peaceful world. 我们需要一个平和的世界。 one可以是代词，单独做句子主语、宾语、表语；当形容词或数词时可以在句子里做定语。例如： The teacher singled out one composition for class discussion. （定语） 教师挑选出一篇作文来供课堂上讨论。 Can you spare one of them for me? （宾语） 你能把其中的一个匀给我吗? One can imagine how regretful he was. （主语） 任何人可以想像他是多么懊悔。

5. do的同义短语？

spare no effort to do不遗余力/尽力(做)...

最常用) be all out

be unsparing in one's efforts

do one's level best

do one's utmost to go to

all lengths leave best

6. 用help造句？

1.We try to help all students realize their full potential.

2.Give me one good reason why I should help you.

3.It's a good job you were there to help.

4.It is not within my power to help you.

5.I'll see what I can do to help.

6.Can you last until I can get help?We'll give you all the help we can.

7.It was really kind of you to help me.

8.She may need your help with some business matters.

9.Could you spare one of your staff to help us out?

7. onatin的时间用法区别？

表示时间的区别：

at指时间表示：

1. 时间的一点，一时刻：

They come home at surprise (at noon, at midnight, at ten o’clock, at daybreak, at dawn).

他们出其不意地回家（中午、午夜、十点钟、黎明）。

2. 较短的一段时间。可指某个节日或认为一年中标志大事的日子。

His grandfather died at seventy-two.

他祖父七十二岁去世。

At the beginning (middle, end) of that month he was sick.

那个月初（中、末）他病了。

He went home at Christmas (at New Year, at the spring Festival, at night, at midsummer).

他在圣诞节回家（新年，春节，晚上，仲夏）。

in指时间表示：

1. 在某个较长的时间（如世纪，朝代，年，月，季节，及泛指的上午，下午和晚上等）内。

He died in the holidays.

他在假期去世了。

He was born in 1942.

他出生于1942年。

2. 在一段时间之后。

He will come round in a day or two.

他一两天后就会回来。

I will finish it in three hours.

我将在三小时内完成它。

on指时间表示：

1. 具体的时日和一个特定的时间，如某日，某节日，星期几等。

He will come to meet us on our arrival.

我们一到他就来接我们。

On May 4th (On Sunday, On New Year’s day, On Christmas Day), there will be a celebration.

5月4日（星期天，元旦，圣诞节），会有庆祝活动。

2. 在某个特定的早晨，下午或晚上。

He arrived at 10 o’clock on the night of the 5th.

他是5日晚上10点到的。

He died on the eve of victory.

他在胜利前夕去世了。

3. 准时，按时。

If the rain should be on time, I should reach home before dark.

如果下雨的话，我应该在天黑之前到家。

表示地点的区别

in 表示地点

1. in 表示比较大的地方

in Shanghai

in London

in Beijing

2. 虽然是很小的地方，如果说话人住在那里，也可用in，商店，机关，学校等，若看作一个地点（point)用at，若看作一个场所（place)用in。

I met him at the post-office.

我在邮局遇见他。

I’m now working in the post-office.

我现在在邮局工作。

On表示地点

一般指与面或线接触：

1. “在…上面”

He put the book on the table and sat on the chair.

他把书放在桌子上，坐在椅子上。

The picture was hanging on the wall.

那幅画挂在墙上。

2. “在…… 旁边”

NewYork is on the Hudson River.

纽约在哈德逊河畔。

Xiamen is on the river.

厦门在河边。

He lives in a house on the river.

他住在河边的一所房子里。

常用短语

在英语中介词的使用频率比较高，而介词in, on和at又是介词中使用频率比较高的词，收集了介词in, on 和at表示时间，地点和状态的常见的短语, 请注意一些短语用不同的介词，意义不同，有些区别不大。

表示时间:

in 表示时间

in 1999, in 20 century, in a flash(瞬时),

in a lucky hour(在幸运时刻), in a minute,

in a second, in a short time, in a while,

in a wink(一瞬间) in advance(预先),

in an emergency(在紧急地时候), in an evil hour(在不幸地时刻), in an instant, in ancient times, in broad day(在大白天),

in course of, (在…期间), in December,

in due course(及时地), in future, in good season(及时地),

in no time(马上), in one's childhood, in one's spare time,

in one's teens, in one's youth, in recent years,

in season(适时), in seconds(在很短的时间),

in some cases(有时候), in spring, in the afternoon,

in the beginning, in the daytime, in the end, in the evening,

in the future, in the long run(最后), in the meantime,

in the morning, in the nick of time(在紧急关头), in the night,

in the past, in the thick of (在最激烈的时刻),

in the thick of(在最激烈的时刻), in this period, in those days,

in time of war, in time

on 表示时间

on a certain day, on a sudden(突然), on a winter morning,

on Christmas Day, on night shift, on one's birthday,

on schedule(按时), on Sunday, on that date, on the eve of,

on the following day, on the instant(马上),

on the moment(立刻), on the Monday morning,

on the New Year's Eve, on the next morning,

on the point of(正在…时候), on the spur of the moment(立刻) on this day, on this occasion, on time

at 表示时间

at a time(在某时), at a wedding(婚礼), at all times(一直),

at any moment, at any time, at Christmas, at dark (天黑时),

at dawn(在黎明), at daybreak, at dinner-time, at dusk(在黄昏), at Easter, at first sight,(一见到), at first, at last, at midnight,

at night, at nightfall, at noon, at present, at six clock,

at sunrise, at sunset, at that moment, at that time,

at the age of, at the beginning of , at the correct time,

at the end of, at the last minute, at the moment,

at the present stage at the same time, at the stage(眼下)

at the start, at the time being, at the time of, at the very start, at this point(此时), at this season, at this time of day,

at times(有时）

表示地点

in 表示地点

in a car, in a queue, in advance of (在…前面),

in all the direction, in appearance, in corners(在角落里)

in doors, in front (of), in good light(在光线好的地方),

in heaven, in place(position)(在适当地位置), in places(处处),

in port(在港内), in public places, in shore(靠岸), in society,

in the air(在空中) in the bank, in the book(书的内容里),

in the centre(在中央), in the countryside,

in the distance(在远处那边), in the east of(在…东部)

in the east, in the fields, in the film, in the front rank(在前列),

in the front row, in the lab, in the letter(信的内容),

in the middle of, in the moonlight,

in the newspaper(报纸的内容里), in the open air(在户外),

in the open(在野外), in the picture, in the rain, in the room,

in the shade of, in the sky, in the suburbs of, in the sunshine, in the tree, in the universe, in the vicinity of(在附近),

in the warm(在暖和的地方) in the world, in(on) the bus,

in(on) the street

on 表示地点

on board (在船上) on camera(出现在电视上), on campus,

on deck(在甲板上), on earth, on 表示地点 on high(在高处),

on land, on the bank, on the beach, on the borders,

on the ceiling, on the coast, on the committee,

on the corner(在拐角处), on the east of(在…的东面)

on the farm, on the first floor, on the footba