1.错题判断：
可以通过第一讲中的时态，来进行错题判断
2.一般现在时深度讲解：
1）平常习惯于真理使用一般现在时
2）延续时间比较长的，不强调以前，不强调以后，那就是一般现在时
例如：你爱我吗？不强调你以前爱我吗。不强调以后。就是一般现在时。
3.结构成立+中文意思 = 正确的句子
一般现在时的总结：
4.一般现在时和一般过去时的特殊性，疑问词与相同的句子
例如：
who did (who) call you?
who did call you ? --> who called you?
who does (who) know him?
who does know him? --> who knows him?
what did (what) happen?
what did happen? --> what happened?
who is(who) crying?
who is crying? who
who is (who) going to come?
who is going to come? 或者 who is coming?
练习题：
