関係代名詞、継続用法
none of them と none of whichの使い分けというか、違いが分からず困っています…
ネット上で調べるとたとえば以下のようなやり取りがあるのですが、結局、理解できていません…
お願いしますm(_ _)m
The two possible forms are:
1. The Consumer Council has tested 300 types of hair-dryers, none of which passed the safety tests.
When, in a sentence, you add further information to what you have just written, we can use a non-defining clause beginning with a preposition,
So:"..300 types of hair-dryers, none of which passed the safety tests.
or "300 types of hair-dryers, of which none passed the safety tests.
"The young remain in the pouch for 7 weeks, by which time they have grown..."
In your sentence, 'which' is a relative pronoun referring directly back to "300 types of hair-dryers"
2. The Consumer Council has tested 300 types of hair-dryers, and none of them passed the safety tests.
Here, the 'additional information' is given in a linking clause beginning with 'and'. We could have written:
"The Consumer Council has tested 300 types of hair-dryers, and none/not one passed the safety tests."
To use 'none of them' without the linking conjuction 'and', we would have to write:
The Consumer Council has tested 300 types of hair-dryers, none of them passing the safety tests.
Check that in typing your full sentence above, you did not omit the 'and'.
Otherwise, I also cannot understand why the 'preferred' answer is 'none of them'.
お礼
なるほど！ ありがとうございます。