每课一句：新概念英语第1册第137课
【往期回顾】
接下来，我们就来看看第137课的“每课一句”。
一、课文原文
Lesson 137 A pleasant dream
Are you doing the football pools, Brian?
Yes, I’ve nearly finished, June. I’m sure we'll win something this week.
You always say that, but we never win anything! What will you do if you win a lot of money?
If I win a lot of money , I'll buy you a mink coat.
I don’t want a mink coat! I want to see the world.
All right. If we win a lot of money, we'll travel around the world and we'll stay at the best hotels. Then we'll return home and buy a big house in the country. We'll have a beautiful garden and…
But if we spend all that money we'll be poor again. What'll we do then?
If we spend all the money, we'll try and win the football pools again.
It’s a pleasant dream, but everything depends on “if”!
——选自《新概念英语》第一册，外语教学与研究出版社，1997年10月第1版
二、每课一句
If I win a lot of money , I'll buy you a mink coat.
本课学习的是由if引导的条件状语从句的用法，本课侧重的是基于现在时间的假设，即第一条件句（First conditionals）的用法。此时if引导的假设，往往是很可能会实现的或与事实基本相符的。
其基本用法为：
主将从现
即：
主动谓语动词采用一般将来时，从句谓语动词采用一般现在时（表将来）。
比如上句中的if从句“If I win a lot of money”中的win采用的是一般现在时，但它表示的是将来的情况。
课文中还出现了更多这样的用法：
If we win a lot of money, we'll travel around the world and we'll stay at the best hotels.
But if we spend all that money we'll be poor again.
If we spend all the money, we'll try and win the football pools again.
三、更多拓展
What will you do if you win a lot of money?
需要注意的是，当主句为疑问句时，if引导的从句往往置于主句之后。
当然，如果是陈述句，主句和从句的先后顺序可以根据侧重点不同而调整。比如：
If we spend all the money, we'll try and win the football pools again.
We'll try and win the football pools again If we spend all the money.
此外，当if从句位于句首开头时，其后往往会用逗号，与主句分开。但是，当if从句置于主句之后，则一般无需在主句之后加逗号。
