【同课异构】2018-2019学年译林版高中英语选修7课件:Unit 3 Period Four Grammar and usage
【同课异构】2018-2019学年译林版高中英语选修7课件:Unit 3 Period Four Grammar and usage第3页

 ★We are having an English class. ★ I have seen the film. ★ He didn’t go home last night. ★ We will fly for Africa next month.

帮助主要动词have构成现在进行时

帮助主要动词see构成现在完成时

帮助主要动词go构成一般过去时

帮助主要动词fly构成一般将来时

What’s the function of the underlined words?