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主题：
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but的用法 |
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内容：
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Mr Dodds does not see his sister, or her family, from one year to the next _______ he sends them Christmas cards, and he has not forgotten on of mark''s eighteen birthdays.
A. however B. otherwise C. but D. therefore
请问老师为什麽这里用but? 而且什麽时候but前要用逗号?
谢谢 |
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提交人：
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lxq0502
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时间：
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5/27/2002 14:5:27
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主题：
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but的用法 |
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内容：
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Mr Dodds does not see his sister, or her family, from one year to the next _______ he sends them Christmas cards, and he has not forgotten on of mark''''s eighteen birthdays.
A. however B. otherwise C. but D. therefore
请问老师为什麽这里用but? 而且什麽时候but前要用逗号?
谢谢
解答：这是not...but的用法，意思是“不是...而是...”。如：
Our purpose is not to do it for you but to teach you to do it by yourself.
我们的目的不是替你做这题,而是教会你自己来做。
当but引导两个完整的句子，表示“但是”的意思是，用“,”。如：
It is hot in summer here, but it is not cold in winter.
这里夏天热,但冬天不冷。
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提交人：
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tchzhangxj
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时间：
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5/27/2002 14:5:33
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