but 加动词不定式的用法。当不定式结构作 but(except,besides) 等介词的宾语,且 but(except,besides) 等词前面的句中有实意动词 do 时,该不定式结构中的 to 要省略,否则一般不省略。例如:1. We have no choice but to arrive late. 除了迟到以外,我们并无选择。2. We have no choice but to turn back. 没办法,我们只有回去。3. You have no choice but to give up. 你别无选择,只能投降。4. At present I can do nothing but wait. 目前, 我只好等待。5. He can do nothing but lie down and sleep. 他无事可做只好躺下睡觉。 6. You can do nothing but let matter take their course. 你无能为力,只能听其自然。