1. 学习目标
In this unit, you will:
● check your vocabulary about foods and drinks;
● complete two questionnaires about food and diet to find how much you know about food;
● enjoy jokes and riddles about food;
● learn food proverbs
● discuss eating habits between Chinese and other nationalities.

2. 语言精要

重点单词 (30)：
bark, fertilize, forbid, achieve, handle, preserve, feature, protein, appetite, decline, drive-in, mood, theme, version, automobile, lemon, liver, mixture, nutrient, pollution, tissue, mineral, apparently, appropriate, disgusting, sacred, sufficiently, casual, distinctive, formal, tropical,

重点词组 （9）
be sick of, in addition, pick up, be related to, in short, above all, eat out, give … credit for …, give way to

重点句型
● Nutrients are the parts of food that are important for life and health. Nutrients are important for three reasons…If people want to be healthy and active, they need to get all the essential nutrients.
● One explanation for the pig-eating taboo is that pork that is not cooked sufficiently may spread a disease called trichinosis.
● Americans eat a lot of beef because there is plenty of land for raising cattle and their meat can be shipped cheaply for long distances by railroads.

重点语法
主谓一致
主谓一致指的是谓语动词在人称和数上必须与主语保持一致。处理主谓一致问题可依据三项原则：语法上一致、意义上一致和就近一致根据这些原则，总结如下：
1) 谓语用单数的情况
● 名词单数 不可数命词 + 介词 + 复数名词
● 动词不定式、-ing或分词作主语
● 抽象名词做主语或单数名词作主语
● 主语前由 “each, every, no” 等词修饰或作主语时
● 表示时间、距离和金钱数目等复数名词表示一个整体概念时
● 以 - ics结尾的复数名词指一门学科
● 主语为“单数名词+ with (as well as, together with, along with, accompanied be, including, expect, but, besides ) ”等短语时
● one of ( a pair of, a part of )+复数名词
● neither + 不定冠词、物主代词或指示代词的单数名词
● percent表示抽象概念，即使后面接复数名词
2) 谓语用复数的情况
● 主语是表示复数的名词时
● 从句中的谓语应和从句中的主语呼应
● 名词复数+介词短语

3．课文主题
In this text the author tells some relationship between food and culture.
In thousand years of time, people have developed many kinds of eating habits. It is natural that different culture has different likes and dislikes on food. But food likes and dislikes do not always seem related to nutrition. Some food may even be taboo in a certain culture. That comes from a long human history.
Why there are eating differences and why some nations consider a kind of food as taboo? According to the author, all these come from a different living style in relation to its social and natural environment.

4． 佳句背诵
● We all have ideas about what kinds of foods are good to eat. (We also have ideas about what kinds of foods are bad to eat.)
● But dislike is not the only reason why some cultures will not eat a certain food. In some cultures, certain foods are taboo.
● Anthropologists believe that most food likes and dislikes are a result of the way of life of different people.
● Progress in printing, photography, and especially color photography opened up more opportunities for creative expression.

5．专家建议—— 通过例子发展主题
本单元的In-Class Reading在写作方面的最大特点是作者在试图说明一些问题时，采用了大量举证的方式，使得文章既有说服力，又容易明白。如印度人不吃牛肉，古埃及人和古代以色列人视猪肉为禁忌等等。使读者通过这些事例，很简单地就明白了这些食物禁忌存在的原因，并很好地理解课文。
在文章写作中，在适当的地方用恰当的例子，往往能起到事半功倍的效果。