阅读下面短文，把A—D填入文中空缺处，使短文内容完整正确，然后完成题。
Nowadays, more and more young people are becoming vegetarians in most Western countries. They are thought of as vegetarians and they refused to eat meat, fish, eggs, cheese and milk. 1. _______Some of them just don’t eat animal products such as milk, eggs, or yogurt, but some others are strict vegetarians and they eat mainly fruit and vegetables. As we know, it is very important to have a balanced diet, especially for the teenagers who are growing up. 2. _______ Well, each person chooses to become a vegetarian for different reasons. The main reasons are they want to protect animals and they want to stay healthy.
I decided to be a vegan when I was 15 years old. But as a vegetarian, I have had a difficult time in getting the proper nutrition(营养). 3. _______ Of course, being a vegetarian isn’t for everyone. 4. _______
A. So why are they becoming vegetarians?
B. Most experts and doctors say that being a vegetarian is very healthy, but many people disagree.
C. So don’t get discouraged(泄气的) if you can’t give up hamburgers and meat dumplings!
D. There are many different types of vegetarians.
5. Which of the following is NOT true？
A. There are many vegetarians in most Western countries.
B. The main reason for being vegetarians is they don’t like eating meat.
C. Not everyone should be a vegetarian.
D. Keeping healthy is important to teenagers.
小题1:D
小题2:A
小题3:B
小题4:C
小题5:B
题目分析：本文是有关素食者的文章，讲述了素食者是怎样形成的。
小题1:通过阅读下文，后面有Some of them和but some others ，说明本句是说素食者的类型。所以本题选D。
小题2:根据上句说饮食均衡很重要，而后一句又说“每个人选择成为素食者有不同的原因”可知，本句应该是问他们为什么会成为素食者。所以本题选A。
小题3:根据上文，我们可知本处应该与前一句相对应，所以本题应该选Ｂ，引述专家和医生话。
小题4:根据上句Of course, being a vegetarian isn’t for everyone“当然，成为一名素食者并不适合每个人。”可知，本句应该进行解释。所以本题选Ｃ。
小题5:通过The main reasons are they want to protect animals and they want to stay healthy可知，Ｂ选项应该是错误的。所以本题选Ｂ。
点评：本题是选句填空，本题有一定的难度，需要我们认真阅读短文，领会文章的意思，特别应该注意前后句之间的关系。句子中的代词、连词等都是关键词语，需格外注意。