英语时态问题（将来时态,正在进行时）!

题目

英语时态问题（将来时态,正在进行时）!
我们学 正在进行时 是：be+doing sth （for example：I am reading.） 将来时态 是：be+going+to do sth （for example：I am going to do spots.） 现在初一了,预习新书内容.发现了与小学的不同.八上UNIT3（人教版）：Talk about future plans.这个单元讲将来时态的吧.摘抄几句里面的句子：----What's she doing for vacation?----She's babysitting her sister.怎么将来时态不是用be+going+to do sth 的句型,而且是跟 正在进行时的句型一样的?那不是很容易混淆吗?献出您的 忠言.让我提升英语水平!Thanks a lot!

答案

1）下列动词：come,go,arrive,leave,start,begin,return的一般现在时表将来.这主要用来表示在时间上已确定或安排好的事情.The train leaves at six tomorrow morning.When does the bus star?It stars in ten minutes.2）倒装句,表示动作正在进行,如：Here comes the bus.= The bus is coming.There goes the bell.= The bell is ringing.3）在时间或条件句中.When Bill comes (不是will come),ask him to wait for me.I'll write to you as soon as I arrive there.4）在动词hope,take care that,make sure that等后.I hope they have a nice time next week.Make sure that the windows are closed before you leave the room.而用现在进行时表示将来 的时候通常意为："意图"、"打算"、"安排"、常用于人.常用词为 come,go,start,arrive,leave,stay等.I'm leaving tomorrow.Are you staying here till next week?现在进行时代替将来时 1) 表示即将发生的或预定中计划好的活动.Are you staying with us this weekend?这周和我们一起度周末吗?We are leaving soon.我们马上就走.2) 渐变动词,如：get,run,grow,become,begin及die.He is dying.