现在进行时Lets guessHe is cutting the tree now. .他正在砍树。现在进行时概念现在进行时表示说话时正在进行或发生的动作;也可以表示当前一段时间内的活动或现阶段正在进行的动作现在进行时结构主语 + be ( is / am / are ) +现在分词eg. I am playing fooball. You are cooking in the kitchen. He is running on the playground. The boy is sleeping. The students are flying kites in the park.be动词用法：I是am,you是are,he,she,it是is，单数是is, 复数是are，不可数是isHe is playing basketball with his friends.We are making cakes here.You wrote an email yesterday.Task 1以下哪些句子是现在进行时？Mike ususlly plays football with Tom
