同学你好，该知识点来自沪江网校《【Uni智能】雅思7分名师VIP-高中起点【8月签约班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好~
3’32开始，As a result, it’s easier than ever to find foods that are good for you at the supermarket. But are some of the foods are unhealthy for the environment?  There have been a lot of discussion in the media about imported foods. Many people say that imported product harm the environment because they are shipped in distances by airplane. It is suggested that we should buy domestic food……..
这段话是连接开篇（C）总起的more and more people are trying to eat a healthy diet 和后面（a）提到的many people believe that locally grown food is more environmentally friendly. 仔细听就会发现它是在泛泛的讨论我们更容易找到对我们有益的食物但是这些食物是否对环境有害呢？后面也有举例讨论，也就是（d）提到的The way we produce food can harm the environment. 这句话中can说明并不是一定harm但是有可能harm。和这段话的意思是一致的。
祝学习愉快！