【正确答案】 C

【答案解析】[听力原文]6-7
Finding enough meat was a problem for primitive man Keeping it when it was scarce was just as hard, Three ways were found to keep meat from spoiling: salting, drying, and freezing.
People near salty waters salted their meat. At first, they probably rubbed dry salt on it. but this preserved only the outside. Later they may have pickled their meat by soaking it in salt water.
In hot, dry lands, men found that they could eat meat that had dried while it was still on the bones. They later learned to cat meat into thin stops and hang it up to dry in the hot air
Men in cold climates found that frozen meat did not spoil. They could leave their meat outside and eat it when they pleased.
6. How many methods are mere mentioned in the article to preserve the meat?

若听懂第一句话"Three ways we are found to keep meat from spoiling：salting，drying，and freezing.”就可以知道“保存肉的方法有三种：腌、风干和冷冻”。

【正确答案】 C

【答案解析】[听力原文]
What did the people in cold places do to preserve tile meat?

首先注意听“Men in cold climates found that frozen meat did not spoil.”然后要仔细听懂问题“What did the people in cold places do to preserve the meat? (天气寒冷地区的人们如何保存肉?)”推出正确为C项。spoil v.损坏，毁坏。