题目内容：
根据下面资料，回答题 Eating habits
Eating habits change from generation to generation. Before scientists learned about vitamins andother constituents of food, such as proteins and carbohydrates (碳水化合物), people believed ineating large quantities of food and were not concerned so much about a 41 (balance) diet. Ahearty eighteenth century meal could consist of as many as twenty courses and would 42 ( probable) knock out many of us today! The Romans were famous for their 43 (enormously) feastsand insatiable appetites.
In the year 2020 people' s eating habits may be just as 44 (surprise) but in a very differentsort of way. With a world-wide 45 (grow) in population, food 46 (produce) .will become exclusively 47 (machine) and scientific.There may well be an end to food as we know it today.Meals, as we know them may become a thing of the past. Food constituents and vitamins may betaken in the form of capsules (胶囊), tablets and pills. The thought of these highly 48 ( artificiality) food constituents replacing present day foods may not be very 49 (attraction), but theymay be the answer to food 50 (short) and world famine.
第（41）题选
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