key后接介词to还是of

 

1.表示“……的钥匙,其后用介词 to of。如:

Is it the key of the safe? 那是开保险箱的吗?

Have you got the key to [of] the door? 你有这门的钥匙吗?

为了简洁起见,有时直接将名词放在 key之前作定语。如:

I’ve lost the car key. 我把小汽车的钥匙丢了。

其后可接不定式作定语。如:

Have you got a key to open this door? 你有开这扇门的钥匙吗?

2.用于比喻义,表示答案”“解答”“秘诀”“关键等义时,一般只与介词 to 连用。如:

This is the key to world peace. 这是世界和平的关键。

The key to the grammar exercises is at the back of the book. 语法练习的答案在书后。

The key to good health is to eat and sleep regularly. 保持身体健康的秘诀是饮食和睡眠要有规律。

若后接动词,要用动名词。如(www.lulutubu.com)

The humble potato may be the key to feeding the world’s population. 这不起眼的土豆有可能是解决全世界人口温饱的关键。

 

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