A. Americans are independent people B. Americans are good at inventing things C. Americans can hardly survive by living alone D. Americans learn to do things all by oneself 参考答案:C 答案解析:[解析]事实细节题。全文围绕现代人独立生活能力退化展开。第二段以美国人为例,介绍了他们不会种地、打猎、喂牲畜,甚至不会做一些简单的机器维修。其目的在于说明:生活越富裕,人的独立生存能力越差。由此推知,
第32题: [单项选择]Let’’s finish our homework in a few seconds; it’’s time we_________. A. played football B. will play football C. play football D. are playing football 参考答案:A 答案解析:本句考查It is time that从句(谓语动词用过去时表示虚拟)。