作业帮 > 英语 > 作业

will be able to 和 will have to 的区别和用法

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/11/08 06:56:24
will be able to 和 will have to 的区别和用法
首先讲一下will have to是have to 的将来式.
I’ll have to...=It will be necessary for me to...
i.e.It will be necessary for them to pass a special test.=They will have to pass a special test.
be able to
  a.位于助动词后.
  b.情态动词后.
  c.表示过去某时刻动作时.
  d.用于句首表示条件.
  e.表示成功地做了某事时,只能用was/were able to,不能用could.
  He was able to flee Europe before the war broke out.
  = He managed to flee Europe before the war broke out.