2014年秋高中英语 Module 4 Carnival 同步攻课讲解外研版必修5
一、 Think of carnival, and you think of crowds, costumes and confusion.
该句属于“祈使句 + and + 陈述句”的用法，相当于“If 从句 + 主句”；该句相当于：“If you think of carnival, you think of crowds, costumes and confusion.” 例如：
Work hard and you will make progress. ( = If you work hard, you’ll make progress.)
类似经常考查的结构：祈使句 + or + 陈述句结构。该句相当于“if ... no t ...，you ... ”。例如：
Hurry up, or you will be late. ( = If you don’t hurry up, you will be late).
二、 Or dinary peop le c ould pretend to be rich and important, while famous people could have romantic adventures in secret.
A）注意该句中while不是引导时间状语从句而是引导并列句，通常说明前后对比情况。例如：
There is plenty of rain in the southeast, while there’s little in the northeast.
B）另外while还有两个用法容易被同学们忽略：
