danger作“危险”、“风险”讲时,是不可数名词;作“危险的人;危险因素;危害;威胁”讲时是可数名词;作“(坏事或不快之事发生的)可能性,危险”讲时,既是可数也不可数,要从具体的语境当中看。
1.不可数名词 danger of sth.危险;风险
(1)Danger! Keep Out!
危险!请勿入内!
(2)Children's lives are in danger every time they cross this road.
孩子们每次过这条马路都面临着生命危险。
(3)Doctors said she is now out of danger (= not likely to die) .
医生说她已脱离危险。
2.可数&不可数名词danger of sth./danger that(坏事或不快之事发生的)可能性,危险
(1)There is no danger of a bush fire now.
目前不存在野外大火的危险。
(2)The building is in danger of collapsing.
这栋建筑有垮塌的危险。
(3)How many factory workers are in danger of losing their jobs?
有多少产业工人可能失业?
(4)There is a danger that the political disorder of the past will return.
昔日的政治动乱可能会重演。
3.可数名词danger to *** ./sth. 危险的人;危险因素;危害;威胁
(1)Smoking is a serious danger to health.
吸烟严重危害健康。
(2)Police said the man was a danger to the public.
警方说该名男子对公众是个危险。
(3)the hidden dangers in your home
家里潜在的危险因素
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