问题描述：
现在完成时和过去现在时的区别.
主要是问问下面这些题目如何给学生们讲解比较好理解!请高手们知道知道提提意见!I used to drink a lot of coffee but "these days"I "prefer tea.Have you seen her "these days".举个例子说一下为什么these days在第二种情况下为什么不用完成时态?作为老师我也讲不出来,My mother will come here tomorrow.Oh ,I thought she "was coming" today.为什么用was coming?What he said at the meeting yesterday ,"proved"true.为什么不能用"was proved".More than 20 people "have been killed "in traffic accidents over the past few months.为什么不用were killed?Twelve inches "makes"one foot.为什么不用make?Bob "had left "his keys in the office,so he had to wait his wife "came".为什么不能用would come?
主要是问问下面这些题目如何给学生们讲解比较好理解!请高手们知道知道提提意见!I used to drink a lot of coffee but "these days"I "prefer tea.Have you seen her "these days".举个例子说一下为什么these days在第二种情况下为什么不用完成时态?作为老师我也讲不出来,My mother will come here tomorrow.Oh ,I thought she "was coming" today.为什么用was coming?What he said at the meeting yesterday ,"proved"true.为什么不能用"was proved".More than 20 people "have been killed "in traffic accidents over the past few months.为什么不用were killed?Twelve inches "makes"one foot.为什么不用make?Bob "had left "his keys in the office,so he had to wait his wife "came".为什么不能用would come?
问题解答：
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