核心问题
Although 38 of the people died of diseases during the expedition, Cook's diet of proper food kept the rest of them healthy.
diet 与 food 是否完全同义?
词典解答
diet 指的是通常吃的食品或规定的食品,如为了维持健康或减肥所规定的食品。
-
a diet of fish and vegetables 由鱼和蔬菜组成的食谱
-
Proper diet and exercise are both important for health. 适当的饮食和运动对于健康都是很重要的。
food 则是指人和动物食用的任何食品：
Have you got enough food and drink for the weekend? 你们周末有足够的食物和饮料吗？[附注]be (go) on a diet 意为“节食”“吃限定的食品”。
[句意]在此次探险期间虽然有38人因病死亡，但其余的人却由于库克所提供的由适当食品组成的食谱而保持着身体健康。