一般将来时
将来要发生的动作,或打算、计划做的事。
will + do  be going to + do
要点
  1. will + 动词原形:表示将来会发生,或说话时临时决定。
  2. be going to + 动词原形:表示打算、计划,或有迹象要发生。
  3. 时间状语:tomorrow、next week、in the future。
  4. 否定是 won't,疑问把 will 提前。
  5. be going to 还管"眼前有迹象、眼看要发生":Look at those clouds! It is going to rain.;纯凭想法预测多用 will:People will live to be 200.(有证据 vs 无证据是这两者的第二条分界线)
  6. shall 只在第一人称的提议与征求意见里常见(Shall we start? / Shall I carry it for you?),陈述句里基本被 will 取代。
  7. 现在进行时的将来用法,指时间地点都已安排好的事:I am meeting the clients at the airport at nine. / We are having a class meeting on Friday. —— 三档由"已安排"到"有打算"再到"临时决定"。
例句
I will take this one.
我要这个。
He is going to work hard.
他打算努力工作。
I am going to join the club.
我打算加入社团。
Will people have robots?
人们会有机器人吗?
Look at those black clouds! It is going to rain.
看那些乌云!要下雨了。
We are having a class meeting on Friday afternoon.
星期五下午我们要开班会。
易错提示
  • 已经计划好的事用 be going to,临时起意用 will。
  • 「将来有」是 there will be —— 不能说 there will have。
  • will 后面接动词原形,中间不插 to(不说 will to go);be going to 里的 to 是不定式符号,后面同样接原形,别写成 be going to going。
  • 简答要跟问句里那个助动词走:Will it rain? — Yes, it will. / No, it won't.(不答 Yes, it is.);问句用 Are you going to…? 才答 Yes, I am.