不是的,　可以表示現(xiàn)在和將來
現(xiàn)在:　I am running (　我在跑步)
將來:　Iwill be running in the morning.(我早上會去跑步)
希望有幫助,不懂我可以再幫忙解釋一些星期六上午8點在校門口集合，我們要去爬山。On 8am this daturday,gathering in school gate,we are going to climb mountain。(又沒語法錯誤，有的話請指出）有.應(yīng)該是 At 8 am,而不是on.gather at the school gate. 如果口語,可以這么說,但是如果標(biāo)準(zhǔn)英語,則要加主語we. we will gather at the school gateclimb the mountain. 或者 climb a mountain.結(jié)合: At 8 am this Saturday, we will gather at the school gate,and we are going to climb the mountain. 因為都好,所以要加 ","逗號