1.What is the topic of the passage?
2.Where was ice used after the Civil War?
3.What was essential to a science of refrigeration according to the passage?
4.It can be inferred from the passage that the theoretical foundation of ice box should be that____________.
5.Without an ice box，farmers had to go to the market at night because_______.
2017届高考英语（重庆专用）二轮精练：必修3 unit5 Canada—“The True North”单元测试
2017届高考英语（重庆专用）二轮精练：必修5 unit1 period 2
2017届高考英语（重庆专用）二轮精练：必修4 unit2 period 1
2017届高考英语（重庆专用）二轮精练：必修3 unit3 period 2
2017届高考英语（重庆专用）二轮精练：必修3 unit2 period 1
2017届高考英语（重庆专用）二轮精练：必修5 unit4 Making the news单元测试
2017届高考英语（重庆专用）二轮精练：必修5 unit5 First aid单元测试
2017届高考英语（重庆专用）二轮精练：必修3 unit5 period 1
2017届高考英语（重庆专用）二轮精练：必修3 unit3 period 1
2017届高考英语（重庆专用）二轮精练：必修5 unit2 period 1
2017届高考英语（重庆专用）二轮精练：必修5 unit4 period 3
2017届高考英语（重庆专用）二轮精练：必修3 unit4 period 1
2017届高考英语（重庆专用）二轮精练：必修3 unit2 period 2
2017届高考英语（重庆专用）二轮精练：必修5 unit1 period 1
2017届高考英语（重庆专用）二轮精练：必修5 unit1 period 3
2017届高考英语（重庆专用）二轮精练：必修5 unit2 The United Kingdom单元测试
2017届高考英语（重庆专用）二轮精练：必修5 unit2 period 3
2017届高考英语（重庆专用）二轮精练：必修4 unit1 period 1
2017届高考英语（重庆专用）二轮精练：必修5 unit4 period 1
2017届高考英语（重庆专用）二轮精练：必修4 unit4 period 2
2017届高考英语（重庆专用）二轮精练：必修5 unit5 period 2
2017届高考英语（重庆专用）二轮精练：必修4 unit2 period 2
2017届高考英语（重庆专用）二轮精练：必修5 unit3 period 3
2017届高考英语（重庆专用）二轮精练：必修4 unit1 Women of achievement单元测试
2017届高考英语（重庆专用）二轮精练：必修4 unit2 Working the land单元测试
2017届高考英语（重庆专用）二轮精练：必修3 unit4 period 2
2017届高考英语（重庆专用）二轮精练：必修3 unit4 Astronomy the science of the stars单元测试
2017届高考英语（重庆专用）二轮精练：必修5 unit3 Life in the future单元测试
2017届高考英语（重庆专用）二轮精练：必修4 unit4 Body language单元测试
2017届高考英语（重庆专用）二轮精练：必修4 unit4 period 1