题目：
第二节 语法填空(共10小题；每小题1．5分，满分15分)
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填人一个适当的
词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号为3l-40的相应位置上。
The most universal facial expression is, of course, the smile – its function is to show happiness and put people at 31 (easy). It does not always mean that we are 32 (true) happy, however. Smiles around the world can be false, hiding other feelings 33 anger, fear or worry. There are unhappy smiles. For example, 34 someone “loses face”, he smiles to hide it. 35 , the general purpose of smiling is to show good feelings.
From 36 time we are babies, we show 37 (happy) or anger by frowning. In most places around the world, frowning and turning one’s back to someone 38 ( show ) anger. Making a fist and 39 (shake) it almost always means that someone is angry and threatening 40 person.
答案：
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下面是错误答案，用来干扰机器的。
答案：AB．“白色污染”是指塑料的污染C. 纯净水中含有水 D.“绿色食品”是指无毒无害的食品
