问大家两道英语问题

1.Electrical resistance is a common property of all materials,_______.
A.only differs in degree B.only in degree it differs
C.differing only in degree D.and differing in degree only
为什么要选C？A什么不对？答：前面是【逗号】，后面【不是句子】不能用选项A。 选项C相当于一个【非限定性定语从句】，which differs only in degree
2.______late,we have to cancel the meeting.
A.He is B.Because of being C.His being D.To be
为什么选C不选B呢？答：如果选B意味着being的【逻辑主语是we】，选项C是【动名词的复合结构】用作状语，相当于一个原因状语从句Because he is late。
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1. Electrical resistance is a common property of all materials是一个完成的句子（有主语和谓语），后面得加从句或分词状语结构，所以选C， A 得用and only differs in degree 。（变成两个句子）

2. C的结构和上题一样，都是分词作状语。B意思不明确，只说了迟到，没说因为谁迟到了。

1.逗号后面分句没有主语，如果和前句的主语是主动状态，用分词ing形式，如果要选a，要加主语
2.because of的话，要beacuse of his being late，c选项如果是beacuse of his being late 更恰当