because / since / as 我们用because / since / as说明理由.通常把since / as放在句首.而because更多地放在句中.并且because常用于回答——精英家教网——
暑假天气热？在家里学北京名师课程，
because / since / as 我们用because / since / as说明理由.通常把since / as放在句首.而because更多地放在句中.并且because常用于回答Why提问的问句. e.g. ------Why didn’t you go to work yesterday? -------Because I was ill. 【】
题目列表(包括答案和解析)
　　A certain poet(诗人) had written a play, and arrangements(安排) were being made to perform it. Of course, the poet was asked to give his advice on the scenery(布景), the lighting, and all the other things that help to make a play successful, and he proved to be a very difficult man to please, as he had his own very definite(固定的) ideas of how each scene should look.
　　In one of the scenes in the play, it was necessary to produce the effect of a wonderful sunset, which the young lovers watched together before singing one of their great love songs.
　　The theatre electricians (电工) worked very hard to produce this sunset effect. They tried out all kinds of arrangements and combinations(组合) of lights－red lights, orange lights, yellow lights,blue lights, lights from above, lights from behind, lights from the front, lights from the sides－but nothing satisfied the poet, until suddenly he saw exactly the effect that he had been dreaming of producing ever since he had written his play.
　　“That's it!” he shouted excitedly to the electricians behind the stage. “That's just right! Keep it exactly like that!”
　　“I'm sorry, sir,” answered the chief electrician, “but we can't keep it like this.”
　　“Why ever not?” asked the poet angrily.
　　“Because the theatre is on fire, sir,” answered the chief electrician. “That's what's producing the effect you can see now!”
1．Who had written a play?
2．What was he asked to give?
3．Why did he prove to be a very difficult man to please?
4．What was it necessary to produce in one scene?
5．When did the young lovers watch this wonderful sunset?
6．Who worked hard to produce this sunset effect?
7．What did they try out?
8．What kind of effect did the poet see suddenly?
9．What did he say to the electricians?
10．Why did they say they could not keep that effect?
____&you've&got&the&flu,&you&needn't&go&to&school&today.
A.&&Since　　B.&&Because&of　　C.&Though　　D.&&For
　　Shenzhen is a city in South China．It is not very big, but it has attracted people of the whole country and the whole world as well．
　　Just about twenty years ago, it was only a small fishing village．There were not many people there．Most of them lived on fishing．Things have greatly changed since the 1980’s．It became the first special economic zone(经济特区)in China．
　　Because of the opening policy(政策)，economic changes between China and the outside world have increased greatly．People can come and go easily between Shenzhen and Hong Kong．Both foreigners and Chinese have built a lot of factories, companies and tourists’ attractions there．People all over the country have come to find jobs．Many of them have settled down in this new booming(兴起的)city．
　　Shenzhen is developing so fast that it has become a well－known metropolis(大都市)in China．
Shenzhen lies ________ China．
in south of
to south of
in north of
on south of
About twenty years ago most of the people in Shenzhen ________．
worked in the factories
did housework
caught fish for a living
lived a happy life
When did Shenzhen become a special economic zone?
十九世纪八十年代。
二十世纪八十年代。
十九世纪八十年代初。
十八世纪九十年代。
What have foreigners done in Shenzhen﹖
They have come to visit their friends．
They have built a lot of factories and companies．
They have got plenty of money from China．
They have come to buy things．
Many of them have settled down in this new booming city．“settled down” means．
began to work
stayed there
阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳答案。
　　Tibet is one of the most popular places for Chinese tourists．The number of travelers to Tibet has grown by 10％ every year over the last few years．Since July 1, 2006, when the first train ran the 1, 956 kilometers from Xining to Lhasa, more and more people have been going to Tibet．
　　The train stops at several famous places along the way, such as Qinghai Lake, Kunlun Mountain, and the Potala Palace(布达拉宫)．Passengers can also enjoy many activities during the journey, like Tibetan dancing and Karaoke．
　　On the train, passengers in the seats can have tea, eggs and noodles for breakfast, and fried chicken and green vegetables for lunch and dinner．Unlike most Chinese trains which have open-hole toilets(厕所), this one has special toilets which can collect the waste．There is also a special rubbish system in the train that keeps the environment clean．All the windows on the train protect people from the bright sunlight．TVs and electrical sockets(插座)for computers and mobile phones can be found on the train．
　　Because there isn't much oxygen(氧气)high in the Tibetant Plateau(高原), trains will have oxygen masks(氧气罩)for those who need them．They are there to ensure that passengers feel comfortable when they have enough oxygen on the famous “roof of the world”．There are also doctors on the train to make sure that all of the travelers are safe．
Which of the following is Not among the places of interest?
Qinghai Lake．
Kunlun Mountain．
The Potala Palace．
The train is unlike most Chinese trains except its ________．
Why do people need to have oxygen masks on the “roof of the world”?
Because it is windy there．
Because there is snow everywhere．
Because there isn't enough oxygen there．
Because there are too many people there．
We can learn from the passage that ________．
flying to Tibet is impossible
taking a train to Lhasa cause a lot of trouble
trains to Lhasa are too clean to take
train trips to Tibet are popular with travelers
What's the best title for the passage?
A comfortable trip to Tibet．
Magic train to magic Tibet．
Roof of the world．
Beautiful view in Tibet．
　　Once a young man was traveling by train．It was a long and boring journey．
　　As the train was moving 　　1　　 a wilderness(荒野)，the passengers looked out of the windows 　　2　　．When the train reached a bend(转弯处)，it 　　3　　 and then a simple house 　　4　　．It was so easy to notice 　　5　　 everybody on the train turned to “enjoy” with eyes wide open．Some passengers even began a 　　6　　 about it．The young man was also 　　7　　 by the scenery．
　　On his return he 　　8　　 the train at the nearest station and found his 　　9　　 to the house．Its owner said that he was troubled by the 　　10　　 of the train．He wanted to 　　11　　 the house, but nobody would buy it．
　　　　12　　 the young man spent 30, 000 dollars on the 　　13　　．He thought it was a good place for 　　14　　 because it was facing the railway bend．When the train moved slowly past, the 　　15　　 passengers would be very interested in the house．
　　He 　　16　　 to connect with some big companies and told them that could be used for advertisement．　　17　　 the Coca-Cola Company took it to put up their 　　18　　．To everyone’s surprise, the young man was 　　19　　 180, 000 dollars for a three-year rent(租金)．This is a true story．It tells us that discovery is very important to 　　20　　．Monday people have got new ideas from it．
dropped off
fell behind
slowed down
rushed out
discovered
discussion
competition
frightened
looked for
waited for
information
advertisement
Since then
confidence
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because可不可以放在句首?because后面加句子,可不可以放在句首?就比如:Because I love you,I will never forget you.这样说成不成立?
明媚忧伤凞
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这是成立的,只不过because和so不能连用.
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完全可以。
Because of放在句首！
扫描下载二维码旧的语法要求,because引领的原因状语从句,不能位于主句之前,但是because of 引领的原因状语可以位于句首. 现在的语法没那么规范了,但是,becauese引导的原因状语从句不能位于段首,如果想放在句首也要慎用,尤其是考试不能这么用。because of 用在句首或句子后面，表示原因。例如： It was all because of your necklace, your beautiful necklace. 那全是你的项链，你那条美丽的项链。 Because of the heavy rain, the sports meet has been put off. 因为大雨，运动会已推迟。 I came late because of the heavy rain. 由于交通阻塞我来晚了。 They are here because of us. 他们是为了我们才来到这里。 He walked slowly because of his bad leg. 他走得慢是因为腿有毛病。 参考文献：.cn/calendula28
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包打听移动版because 什么时候是加of一起用的 我怎么明白有些句子有because of 有的句子就一个_百度知道
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because 什么时候是加of一起用的 我怎么明白有些句子有because of 有的句子就一个
because 什么时候是加of一起用的 我怎么明白有些句子有because of 有的句子就一个because 求大神解释
我有更好的答案
because后面＋句子，because of后面＋名词或者代词
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