我查了下爱词霸, be known as 以...知名; 被认为是; 称为 be known to 为...所知
但是新东方蓝皮书上有一题是这样的:
Until a few centuries ago, any large bones discovered in the fields or caves of Europe, now known tobe large prehistoric animals, were usually assumed to be the remains of giants and were often.........
答案是 C bones now known to be those of large prehistoric animals, were usually assumed to be
为什么这里用known to be 呢? known as 和 known to be 分别是什么意思呢...
The fear of rabies is well founded; few people are known to have recovered from the disease once the clinical symptoms have appeared.
橙71
The cameras of the Voyager II spacecraft detected six small, previously unseen moons circling Uranus, doubling to 12 the number of satellites now known to orbit the distant planet.
Scientists have dated sharp-edged flakes of stone found in the fine-grained sediments of adry riverbed in the Afar region of Ethiopia to between 2.52 and 2.60 million years ago, pushing back by more than 150,000 years the earliest date at which humans are known to have made stone tools.
The number of plant and animal species that humans are known to have forced to extinction in the last half millennium is over 800.
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发表于 2008-5-31 12:46:00
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