There are times when we would willingly give everything we possess to save our lives, yet we might grudge paying a surgeon a high fee for offering us precisely this service. The conditions of society are such that skills have to be paid for in the same way that goods are paid for at a shop. Everyone has something to sell.

　　4. There are times when we would willingly give everything we possess to save our lives, yet we might grudge paying a surgeon a high fee for offering us precisely this service.

　　有时，我们为了挽救生命，愿意付出我们所占有的一切。但就在外科大夫给我们提供了这种服务后，我们却可能为所支付的昂贵的费用而抱怨。

　　语言点:a high fee 高昂的费用

　　5. The conditions of society are such that skills have to be paid for in the same way that goods are paid for at a shop.

　　社会上的情况就是如此，技术是必须付钱去买的，就像在商店里要花钱买商品一样。

　　语言点:句子结构分析:such后面的that引导同位语从句，such是代词。这个从句中的that引导的是一个定语从句，说明是“什么样的方法”。

　　6. Everyone has something to sell.

　　人人都有东西可以出售。

　　语言点:句子结构分析:动词不定式to sell充当something的后置定语。