1.今天先跟大家讲下交叉使用will,be going to,will have to三种表达法。
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.
2.won't have to是指“将不必”，“将没有必要”，是will have to的否定式，如一般说“不必”，则是另外一种形式。请看，下面三句意思一样：
You don't have to pass the special test.
You needn't pass the special test.
You haven't got to pass the special test.
3.will have to这一表达法，不能只是解释为“将来不得不”。
have to
had to

don't have to
不必 didn't have to

或：haven't' got to

will have to
还得
would have to

won't have to
将不必
wouldn't have to

4.shall have to大有被will have to代用之势，这在现代英语中第一人称不用shall,是不足为怪的事。
例：We will have to help him as much as we can.
我们还得尽可能帮他一把
5.另外还有较深层次的表达。
1)We might have had to do this.
我们说不定还有必要做这件事呢。
2)These last two days I have had to take a rest.
最近两天，我确实有必要休息一下。
3)We might have to cancel his plan.
我们也许有必要取消他的计划。

------------------VOCABULARY-------------------
go on strike 进行罢工
be due to 预定，定于
reach an agreement 达成一项协议
offer 提供，向某人提供，后跟to
pressure on 在...身上的压力
to some extent 在某种程度上
volunteer to 志愿提出某事

===============On Strike =================
1]Busmen have decided to go on strike next week .The strike is due to begin on Tuesday.No one knows how long it will last. The busmen have stated that the strike will continue until general agreement is reached about pay and working conditions.
2]Most people believe that the strike will last for at least a week .Many owners of private cars are going to offer "free tides "to people on their way to work. This will relieve pressure on the trains to some extent.Meanwhile,a number of university students have volunteered to drive buses while the strike lasts .
3]All the young men are expert drivers,but before they drive any of the buses ,they will have to pass a special test.The students are going to take the test in two days time .Even so,people are going to find it difficult to get to work.But so far,the public has expressed its gratitude to the students in letters to the Press.Only one or two people have objected that the students will drive too fast!

==============*译文参考*================
1]公共场所汽车司机决定在下周进行罢工。罢工定于星期二开始。谁也不知道罢工会持续多久。司机们声言罢工要继续下去，直到达成关于工资和劳动条件的总协议为止。 2]大多数人认为罢工将至少持续一个星期。许多拥有小汽车的人将为一路去上班的人提供“免费乘车”。这将在种程度上减轻对火车的压力。与此同时，一些大学生已志愿提出在罢工期间驾驶公共汽车。
3]所有这些年青人都是驾驶能手，但是在驾驶不管哪一辆公共汽车之前，他们还得通过一项专门测试。学生们将在两天之后参加测试。即使如此，人们还是感到上有困难。只有一两个表示反对，认为大学生会把车子开得太快的！