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1. Sometimes it\'s scary to talk about the future. 有时很害怕谈到将来。 句中的it是形式主语,真正的主语是动词不定式短语to talk about the future。如: It\'s important for us to learn English well. 对我们来说,学好英语很重要。 2. I hope so. 我希望如此。 此句即I hope I will be a doctor. 在动词think, hope, believe, be afraid等词后可以用so来代替前句所说的内容。如: -Do you think Mr. Li will come this afternoon? 你认为李先生下午会来吗? -I think/ hope/ believe so. 我想/希望/相信他会来。 -Are we late? 我们来迟了吗? -I\'m afraid so. 恐怕是。 在否定句中think, believe可以有以下两种形式:①I don\'t think/ believe so. ②I think/ believe not.而hope和be afraid 只能采用第二种形式。如: -Do you think the bus will arrive here on time? 你认为公共汽车会准时来吗? -I don\'t think so. / I think not. 我想不会。 -Do you think we\'ll have bad weather? 你认为我们会碰上坏天气吗? -I hope not. (不说I don\'t hope so.)希望不会。 -Are we on time? 我们会准时吗? -I\'m afraid not. (不说I\'m not afraid so.)恐怕不能。 (责任编辑：admin) |