SnailSnailTortoiseTortoisewill/shalldowill/shalldobegoingtodobegoingtodobeabouttodobeabouttododo/doesdo/doesbe+趋向动词+ingbe+趋向动词+ingbetodobetodoHOWHOWtoexpressthesimplefuturetenseFORMFORMUSAGEUSAGEwill/shalldo表示将来发生的动作或出现的状态,shall仅与第一人称连用begoingtodo表示主语打算的行动或看来就要发生的事情becoming表示计划或安排好的动作(go,come,leave,arrive,start,begin,flying等趋向动词)betodo表示客观上计划或安排好的动作beabouttodo表示即将发生的动作,一般不和确切的时间状语连用do表示与安排,计划或时刻表有关的动作;或用于if,when等状语从句中代替willdo
HOWHOWtoexpressthefutureinthepastwould/shoulddowould/shoulddowas/weregoingtodowas/weregoingtodowas/wereabouttodowas/wereabouttodowas/were+趋向动词+ingwas/were+趋向动词+ingwas/weretodowas/weretodoFORMFORMUSAGEUSAGEwould/shoulddo表示从过去某一时间看将要发生的动作或出现的状态,should仅与第一人称连用was/weregoingtodo表示主语过去打算的行动或看来将要发生的事情was/weredoing表示过去计划或安排好的动作(go,come,leave,arrive,begin,start,flying等动词)was/w