现在完成时专项练习 1
现在完成时的结构:______________________________ 2
现在完成时的定义 ①_____________________________ ②____________________________ 2
写出have been to, have gone to, have been in 的用法(并说出它们的特征): _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 3
尽可能多的写出表示用现在完成时的标志性单词或者词组: ______________________________________________________________________________________________________________________________________________________________ 4
写出短暂性动词和其对应的延续性动词: buy----- leave------- turn on/off------ borrow----- join--------- finish------- arrive------ die---------- fall asleep---- stop-------- get married--------- catch a c