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# argumentation（1） Material One In 2004 Steve Jobs was diagnosed with cancer . The doctors told him it was almost certainly an incurable cancer, and t 阅读全文
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# Ex.3 1) You usually go there by train. Why not ______by boat for a change this time? A. to try going B. trying to go C. to try and go D. try going 2 阅读全文
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动词不定式在句中不能作谓语用，属非谓语动词的一种。动词不定式由“to + 动词原形”构成，其否定形式“not to + 动词原形”。动词不定式虽然不能作谓语动词用，但是保留动词的特征，它可以带有所需要的宾语（如：to play tennis）或状语（如：to work hard）而构成动词不定式短语 阅读全文