like 与 unlike
下面这个句子有问题吗?
The teacher only likes good students, and unlike bad students.
这是一个有问题的句子。主要问题出在误将unlike用作动词。在现代英语中，unlike只用作介词或形容词，不用作动词。如：
They are so unlike that nobody would believe they were sisters. 她们毫无相似之处，谁也不相信她们是姐妹。
She is unlike her mother; she is tall and her mother is very short. 她不像她妈妈;她很高，而她妈妈很矮。
For twins, they are very unlike. 作为一对双胞胎，他们很不一样。
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