英语语法,被动Over 170 countries now impose drink-driving limits,according to a new report by the World Health Organisation,although the amount of alcohol allowed varies considerably为什么最后一句话不是is allowed to varies considerably
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英语语法,被动Over 170 countries now impose drink-driving limits,according to a new report by the World Health Organisation,although the amount of alcohol allowed varies considerably为什么最后一句话不是is allowed to varies considerably
英语语法,被动
Over 170 countries now impose drink-driving limits,according to a new report by the World Health Organisation,although the amount of alcohol allowed varies considerably
为什么最后一句话不是is allowed to varies considerably?
不是应该是被动的吗?
英语语法,被动Over 170 countries now impose drink-driving limits,according to a new report by the World Health Organisation,although the amount of alcohol allowed varies considerably为什么最后一句话不是is allowed to varies considerably
如果用is allowed to varies considerably,那由although引导的从句不是有两个谓语（is allowed和varies）了吗?
及物动词的过去分词作表语,与句子主语是被动关系,所以这里句中的allowed已经有被动的意味了
分析句子成分不要顾此失彼喔~~~
主要是allow的词义，在那句里没有被动的意思
看几个例子：
1. She won't allow the children in(to the house) until they've wiped their shoes.
孩子们不把鞋擦乾净, 她就不让他们进（屋）.
2. Allow me to introduce . to you.
请允许...
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主要是allow的词义，在那句里没有被动的意思
看几个例子：
1. She won't allow the children in(to the house) until they've wiped their shoes.
孩子们不把鞋擦乾净, 她就不让他们进（屋）.
2. Allow me to introduce . to you.
请允许我向你介绍某人。
3. They do not allow smoking here.
他们这儿不允许吸烟。
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