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几道简单的英语单选,If _____,we’llcontinue our experiment after office

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几道简单的英语单选,
If _____,we’llcontinue our experiment after office hours.
A.necessary B.it necessary
为什么选A不选B?
Our company produces 100cars a day,their____.
A.can’t B.can’t produce so much
为什么选A不选B?
Western Nebraska generally receives less snow than____eastern Nebraska.
A.does B.it does in
为什么选A不选B?
All that you do,do with your might.Things done by halves are never done right.怎么翻译?
He had made another wonderful discovery,_____of great important to science.
A.Which I think is B.Which I think it is
为什么选A不选B?
Almost all metals are conductors of electricity,____has been stated above.
A.as B.which
为什么选A不选B?
Can you name a few more electrical appliances______electricity is used to produce heat?
A.as B.where
为什么选B不选A?
1.If necessary是if it is necessary 的省略.It necessary 中缺少系动词;即使加上系动词 is,仍然缺少与主句we’ll continue our experiment after office hours连接的连词.所以此要么用if it is necessary,要么If necessary.
2.B 错在 so much.此处应该用 so many,因为many 指 products,是复数.Theirs can’t 是Theirs can’t produce so many 的省略.注意,要用theirs,不能用 their,可能是你输错了.
3.主句是Western Nebraska 做主语,从句当然要用eastern Nebraska做主语,而不能用it,用了it的话,就仍然指Western Nebraska,那就是自己和自己比了,没道理.另外要注意,than does eastern Nebraska 是主谓倒装结构.
4.这是两句.第一句翻译:对于所有你做的事情,都要尽力去做.第二句翻译:凡做了一半的事情,从来就未曾做对过.(半途而废,不如不做.)
5.首先要说的是你句中的important 是错的,应该是名词importance,你一定是输错了,不妨核对一下原文.Be of importance = be important.备选项B中多了代词it;事实上,从句已经有主语了,那就是关系代词which.所以选A.
6.as 在此做关系代词,引出非限定性定语从句,意思是 “如上所述”.注意:which 虽然也能引出非限定性定语从句,但它作为关系代词仅仅指代主句所说的意思,而as 不仅“指代”那意思,而是表示“如同”或“像”,“如同所说” 英语中当然得用as,而不是用which了.
7.where = in which,作为关系副词引出定语从句.electrical appliances where (或in which) electricity is used to produce heat的意思是:其“内部”用电生热的电器.全句的意思是:你能说出更多的用电来生热的电器吗?as 与“正如”、“当.”、“由于.”等意思,在此都不合适.