专题09 Unit 3 Using Language（备作业）-【上好英语课】2020-2021学年高二同步备课系列（人教版2019选择性必修第二册）

选择性必修第二册练习 Unit 3 Food and culture Using Language I.阅读理解 1 Different contexts affect food production, processing, trade, marketing and consumption. As a result of this, the food availability, accessibility, and affordability— as well as consumers’ dietary behaviour and nutritional status—vary. One possible picture is presented here to provide an idea on how COVID-19 might impact the global food system. Consumer demand plays a crucial role in food production and their demands depend on purchasing power and preference. Because of the lockdown, there is no work for many people. As a result, they do not have enough money to buy adequate food for their families. The closure of restaurants, school meals and tourism businesses may reduce the demand for fresh food. People buy frozen. dried and canned food with longer shelf life. Energy-dense, less nutritious foods are often more affordable than fresh and nutritious one. According to the Centers for Disease Control and Prevention, COVID-19 is