Work on it had begun before my sister left.这句语法讲解下,有点迷糊.

Work on it had begun before my sister left.这句语法讲解下,有点迷糊.
Work on it had begun before my sister left.这句语法讲解下,有点迷糊.

Work on it had begun before my sister left.这句语法讲解下,有点迷糊.
—Hello, I’m Harry Potter.
—Hello, my name is Charles Green, but ________________.
call my Charles
call me at Charles
call me Charles
call Charles me
—Hello, May I speak to Don, please?
—________________?
I am Don. Who are you
Who’s there
Who could I help
This is Don. Who’s speaking
—Hello, I’d like to talk to the headmaster now.
—________________.
Sorry, he is busy at the moment
No, you can’t
Sorry, you can’t
I don’t know
—Hello, my I talk to Tom?
—Sorry, Tom isn’t in.
—________________.
—Sure.
Is there any way to get in touch with him?
Can I leave a message?
Does he work today?
Can I take a message for him?
—It’s so sweet of you to help me lift the box.
—________________.
Don’t thank me.
No, no, don’t say that
It’s my pleasure.
No thank.
—Sorry I kept you waiting.
—________________.
I’m sad
I don’t care
That’s all right. There’s no hurry
No, not at all
—I was worried about chemistry, but Mr. Brown gave me an A!
—________________.
Don’t worry about it
Congratulations! That’s a difficult course
Mr. Brown is very good
Good luck to you!
— Alice, your hair design is really nice.
—________________.
No, no
Yours is nice
Thank you very much
My hair design is not nice at all
—We’re going on a visit to Japan next week.
—________________.
Have a good journey
Good bye.
Wish you happy
You’re right.
Although John tried hard in the exam, he did _______ than his brother.
much worse
much better
much badly
more badly
In the middle of the room stands a _______ table.
beautiful wooden round
round wooden beautiful
wooden round beautiful
beautiful round wooden
We need a place _______ this one.
twice as larger as
twice as large as
as twice large
as large as twice
It is _______ that he has to ask for help.
so a big job
a so big job
a such big job
such a big job
I felt that I was not yet _______ to travel.
so well
so good
strong enough
enough well
She only knew that she went there _______, but forgot about the exact date.
Sunday
on Sunday
on a Sunday
in a Sunday
He goes to _______ church every Sunday. _______ church he usually goes to has the seating
for over a thousand.
a; The
/; The
the; The
a; /
Tom likes to playing _______, while his sister likes to play _______.
football; the piano
the football; the piano
the football; piano
football; piano
Tea and coffee are _______ popular beverages in the United States.
most
the most
a most
the more
_______ the computer _______ it can work.
Smaller; faster
Smallest; fastest
The smaller; the faster
The smallest; The fastest
When I came to see him last evening, he _______ football game.
has watched
was watched
watches
was watching
The sun _______ in the east and _______ in the west.
rise; set
rises; sets
rose; set
is rising; is setting
It is likely that our team _______ the game.
is about to win
will win
wins
has won
When she was in Chengdu, she often _______ to see me.
comes
came
has came
had came
John’s father _______ mathematics in this school ever since he graduated from Harvard University.
taught
teaches
has taught
is teaching
Before I got to the cinema, the film _______.
had begun
has begun
is begun
was beginning
By next year, he _______ in New York for five years.
has worked
has been working
works
will have worked
Jim _______ Japan in 1980 and _______ in China ever since.
left…lived
left… has lived
has left… lived
has left…has lived
Look _______! There’s a car coming.
up
out
back
over
We are interested in the weather because it _______ us so directly-what we wear, what we do, and even how we feel.
benefits
affects
guides
effects
You shouldn’t _______ your time like that, Bob; you have to finish your school work tonight.
cut
do
kill
kick
What is the train _______ to Birmingham?
fee
tip
fare
cost
He was _______ the preparation of an international conference when I arrived in Beijing.
engaged to
engaged for
engaged on
engaged in
I am pleased to take _______ to exchange views with you.
this opportunity
a chance
this time
a period
In those days, the Portuguese (葡萄牙人) were trying to reach India by sailing round Africa, but Columbus _______ prove that India could be reached by sailing west.
was determined in
determined
was determined to
determined in
Wang Li’s father has taught English here since he graduated from Peking University.
王立的父亲在北京大学时就在这所学校教书.
王立的父亲从北京大学毕业以前就在这所学校教英语.
王立的父亲从北京大学毕业以来就在这所学校教英语.
王立的父亲还没有从北京大学毕业,就在这所学校教英语.
Bill hit his car into a wall last night.
昨晚比尔在围墙内敲坏了他的车.
昨晚比尔将他的车弄坏了.
昨晚比尔撞车了.
昨晚比尔开车时撞到了墙上.
It was the car accident that deprived her of a normal life.
是一次车祸影响了她的生活.
正是那场车祸剥夺了她的正常生活.
她正常的生活被车祸打乱了.
她中断了她的正常生活,又遇到了车祸.
It never occurred to her that such a minor mistake would cause her to lose her job.
如此小的一个错误会使她失去工作,这是从未发生的.
她从未因犯小的错误而失去工作.
她从未在工作中犯小的错误, 这使她失去了工作.
她从未想到这么小的一个错误竟会让她失去工作.
Not only does John read newspapers, he also reads magazines.
约翰既不读报, 也不看杂志.
约翰不读报, 但看杂志.
约翰报纸和杂志都看.
约翰不仅读报, 而且还看杂志.
—Congratulations! You won the first prize in today’s speech contest.
—________________.
Yes, I beat the others.
Yes, I won the first.
It is a pleasure.
Thank you.
答案都给你推出来啦,希望能帮到你哦

Work是主语，on it是介词短语作work的后置定语，had begun是谓语，before my sister left是介词短语作状语。
全句可译：这方面的工作在我姐姐离开之前已经开始。

楼上的翻译对了，没分析对。
work 是一个动词，on it,是介词短语，即：关于这方面的工作。
had begun是过去完成时，before my sister left.过去完成时表过去两个动作发生的先后顺序。这里应该是my sister left之前，关于这方面的工作就已经开始了。
就这么简单。...

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楼上的翻译对了，没分析对。
work 是一个动词，on it,是介词短语，即：关于这方面的工作。
had begun是过去完成时，before my sister left.过去完成时表过去两个动作发生的先后顺序。这里应该是my sister left之前，关于这方面的工作就已经开始了。
就这么简单。

收起

一、本句是复合句：
主句 —— Work on it had begun
时间状语从句 —— before my sister left
二、词语及语法：
1. 主句中的 Work 是名词，与介词短语 on it 构成名词短语，意思是“有关这件事上的工作”
2. 从句 my sister left 指的是过去的行为，而主句...

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一、本句是复合句：
主句 —— Work on it had begun
时间状语从句 —— before my sister left
二、词语及语法：
1. 主句中的 Work 是名词，与介词短语 on it 构成名词短语，意思是“有关这件事上的工作”
2. 从句 my sister left 指的是过去的行为，而主句的“开始”是发生在 my sister left 之前，属于过去的过去，因此要用过去完成时态 had begun 。
翻译：（直译）在我姐姐离开之前在这件事情上出力已经开始。
以下是意译——
1. 在我姐姐离开之前，从事的这件事情已经开始了。
2. 从事的这件事情已经开始我姐姐才离开。
3. 有关这方面的工作在我姐姐离开之前已经开始了

收起

我想，Work on应该是单独词组，IT引导新的句子。即Work on！It had begun before my sister left.
继续干吧！这在我姐姐离开之前已经开始了。