英语问题！！高手场！

Question

The general opinion abroad is that London has fog or rain,or both,every day of the year,but on the day_____I arrived it was very fine and warm.
A.that B.which
为什么选A不选B?
Unlike sound,light can travel in a vacuum,in empty space___there is not even air.
A.that B.where
为什么选B不选A？
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? 后半句是什么意思？
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？
An investigation was made into the accident,(in which)fifty people were killed.
为什么用in which?

Answer 1

The general opinion abroad is that London has fog or rain,or both,every day of the year,but on the day_____I arrived it was very fine and warm.
A.that B.which
从语法角度讲，which后面一般都要加逗号，变成on the day,which i arrived,it was fine and warm.

Unlike sound,light can travel in a vacuum,in empty space___there is not even air.
A.that B.where
there is not even air指定的是一个环境/场地/地区，所以要用where

All that you do,do with your might.Things done by halves are never done right.
翻译了大概就是：如果决定了要做一件事就付出全部力量。半途而废绝不会正确的解决事情。

He had made another wonderful discovery,_____of great important to science.
A.Which I think is B.Which I think it is
这里选A是因为"it"就是"wonderful discovery"，既然前半句已经提起了，而且还在描述它，就不应该再重复的用it

Almost all metals are conductors of electricity,____has been stated above.
A.as B.which
后半句：由以上所述
其实这题的选项很暧昧（笑），其实两个都可以用。如果一定要解释的话，as 就像 like，后半句就变成了“就像上述的”。

Can you name a few more electrical appliances______electricity is used to produce heat？
A.as B.where
跟刚刚的那道一样，用电制造热量也是一种特定环境，所以要用where。as换成like填进去的话不通顺。

An investigation was made into the accident,(in which)fifty people were killed.
因为要说in the accident fifty ppl were killed. which 就是the accident的另一种说法，因为前面已经说过the accident了，为了不重复用词，改为which

Answer 2

非专业英语人士回答你的问题．
1，先行词在定语从句中做表语言，只能用that
2,in empty space , empt space 前有个介词in ,that 不可以
3，做一切事情都应该尽力而为，不可半途而废
4，which 引导定语从句在句子中做宾语，，整个which i think 在后面句子中做主语的．B选项中的it 重复掉了．
5，当先行词前面有only, some, any, no, every, little, few, much, all, very等形容词修饰时，只能用as
6,where用于引申意义，引导名词性从句，相当于the place
7,这里in which 用做关系副词，引导定语从句

Answer 3

第一题中arrived并不缺宾语，所以不用which
第二题中where是地点状语，主句缺一个地点状语。
翻译：要做的就尽全力，半途而废从来不是正确的。
第三题中which i think 是插入语，去掉后不影响句子意思，而is是句子的谓语动词。
第四题我个人认为，as充当了两个句子成分，一个是后半句的主语，来指代前面的句子，还有一个意思就是：如同（仔细品一品，确实有如同的含义）。后半句翻译是：这在上文中已经被证明了。
第五题中where指的是日用电器那个环境，在那个环境和场所内，电是用来发热的。
第六题中in which指的是accident，在那个accident中有五十个人被杀，应该也可以用where.