《小聪明》--进阶内容：更有效的描述时间段？

笑话：
One day, close to the end of school, a teacher tells her students ‘anyone who can answer my next question correctly can leave class immediately’. 
某天快要放学的时候，老师对同学们说到 ‘如果有人正确的回答了我的下一个问题他就可以立刻放学！’
As soon as the teacher finished her sentence, she was hit by a book that was thrown by a student.
老师的话语刚落，她就被一位学生扔过来的书砸中了。
Frustrated, the teacher asked ‘who threw the book?’
老师呢，无奈的问道 ‘谁扔的书？’
Once the teacher asked the question, Tommy stood up and said ‘It was me, now I can leave right?’ 
老师刚问了问题，Tommy就站了起来说 ‘是我扔的，我现在可以走了吧?’


知识点：
1. Immediately/Right now (马上、即刻）

I’ll start working on it immediately. 我马上就开始弄。

You need to clean your room right now. 你必须即刻整理你的房间。

2. Soon/Shortly (很快、一会儿）

I’ll be there soon/shortly. 我很快就到了。

3. In a moment/In a moment (很快、一下下、不会太久）

Please wait, I’ll be done in a moment. 请等一下，我还有一下下就好了。

4. In a while (过一会儿）

A: Can you help me with something? 你能帮我一下吗？ 
B: I’ll help you in a while. 我过一会儿在帮你啊。

5. Later （过一阵子）

I’ll help you later. 我过一阵子在帮你。

6. In due course （在合适的时候）

A: When do you think I can get a raise? 你觉得我什么时候能涨工资呀？
B: You will get a raise in due course, 你在合适的时候就能涨工资了。