During the Great Depression of the 1930s，the popcorn business still thrived as people could still afford it.Then in the 1950s television arrived and popcorn consumption decreased.People stayed home and stopped going to the theatre.But the link between movies and popcorn had already existed.Soon people began making popcorn at home on the stove.Later，microwave popcorn was introduced.

　　Today the movies have regained popularity and popcorn has once again become the favorite.

　　【语篇导读】　没有温热香甜的爆米花，电影似乎也会失去味道吧。那么，关于爆米花你又了解多少呢？

　　1．Popcorn was first planted in ______.

　　A．China

　　B．America

　　C．India

　　D．Mexico

　　解析　细节理解题。根据第一段第三句可知答案。

　　答案　D

　　2．Why does the corn kernel pop when heated?

　　A．Because it is covered with soft starch.

　　B．Because the pressure inside is too big.

　　C．Because the starch becomes bigger in size.

　　D．Because there is water inside the kernel.

　　解析　细节理解题。根据第二段第二、三两句可知，玉米粒内的水并不能直接导致它炸开，而是水蒸气产生的压力作用于四周坚硬的内核上，造成它爆炸。故答案选B。

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