第6题: [单项选择]You ______ drink water that is not A. had better not; boil B. had not better; boiled C. had better not; boiled D. wouldn’t; boiling 参考答案:C 答案解析:[听力原文]
The water that isn’t boiled is not fit to drink.
第20题: [单项选择]From the passage we can find out that the author mainly studies ______. A. patterns of family behavior B. women who are initiating social change in a small region in Texas C. migrant agricultural workers D. how migrant farm workers lived in the past 参考答案:B 答案解析:[解析] 此题考查的是对文章第一自然段的中心句“The subject of my study is women who are initiating social change in a small