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比较： What I am going to do is to play tennis this afternoon. 我今天下午要做的事是打网球。 ing形式作表语：注意事项 在句型"主 + 系 + 表"中，若主语和表语都是非谓语形式时，主语和表语要取得一致。如：主语 是ing形式表语也应是ing形式，主语是不定式时表语也应是不定式。 <><><> Seeing is believing. To see is to believe. 眼见为实。 <><><> (误) Seeing is to believe. ing形式作定语 ing形式可以作名词的前置定语，ing形式短语作后置定语。 <><><> ing形式作前置定语 a swimming pool a teaching method <><><> ing形式短语作后置定语 Do you know the man standing at the entrance? 你认识站在入口处的那个人吗？ There were a lot of people boating on the lake. 湖上有许多正在划船的人。 虚拟语气：表语从句 主语是idea, notion, proposal, suggestion, request等名词时, 作表语从句的动词为原形动词或should+原形动词。 My suggestion is that we (should) go and help him. 我的建议是我们应该去帮助他。 Our only request is that this should be settled as soon as possible. 我们唯一的请求就是尽快解决这个问题。 (责任编辑：admin) |