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1.
a) A tool for fortunetelling, tarot card were believed to be introduced to Europe by Gypsys in the fifteenth century.
b) A tool for fortunetelling, tarot card are believed to have been introduced to Europe by Gypsys in the fifteenth century.
2.这是老外的一个论坛的另外同样一个SAMPLE TEST里的题目
QUOTE (silent bob @ Oct 26 2003, 02:38 PM) |
A) Gun powders and spices were believed to be introduced to Europe by Chinese in the 15th century.
B) Gun powders and spices are believed to have been introduced to Europe by Cchinese in the 15th century. |
B is better.
Here's why. We assume we're talking about something that is still true, i.e., something that is still believed. Therefore, we use the present tense are believed.
Furthermore, we have the difference between to be introduced and to have been introduced.
to be + COMPLEMENT refers to present tense: The depletion of the ozone layer is believed to be the cause of global warming.
to have been + COMPLEMENT refers to past tense: The impact of a giant meteorite is believed to have caused a chain of events that would ultimately lead to the extinction of the dinosaur.
蓝色的是一个老外的解释
能请牛牛给下个定论吗? 因为这2种说法都很常见!
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发表于 2004-7-16 17:22:00
