动词原形表达。
She asked me if I was going to send the letter. 他问我是否去寄信。
7.现在完成时 (1)现在完成时的用法
①表示过去发生的或已经完成的某一动作对现在 造成的影响或结果。
I have already had a rest.我已经休息了一会儿了。 ②表示动作或状态在过去已经开始,持续到现在, 也许还要继续持续下去,常和“for+时间段”“since+时 间点”连用。 He has been away for two days.他已经离开两天了。
构成方法
例词
一般情况
直接加-s
read→reads love→loves
以s,o,x,ch,sh 加-es 结尾
pass→passes box→boxes teach→teach wash→washes
以辅音字母+y 将y变为I,再 carry→carries study→studies
结尾
加-es
A. do B. did C. had D. broke
4. —I called you yesterday evening, but there was no answer.
B. have played C. played D. play
语法探究
动词的时态 1.一般现在时 (1)一般现在时的用法 ①表示经常性、习惯性的动作或存在的状态。常与 频度副词连用。 I often take a walk in the park.我经常在公园散步。 These T-shirt are new.这些T恤是新的。 ②表示客观事实、真理。 The sun rises in the east and sets in the west.太阳东升 西落。