Question textSection E Read this paragraph and answer the following questions. Extreme weather events affect energy demand and supply. Exceptionally cold temperatures increase demand for electricity, and can disrupt energy supply, causing health and safety issues. Because natural gas is used to generate a large share of the electricity in the U.S., a drop in natural gas-fired generation during cold weather affects total electricity generation. Electricity is used as the primary heating source in 39% of U.S. homes. Natural gas directly heats about 48% of U.S. homes, but the majority of modern natural-gas heating requires electricity to light the flame and distribute the heat throughout the house. Demand for natural gas for electricity generation usually peaks during summer. This is when residents increase their air-conditioning use. Natural gas generates as much as 61% of net electricity generation during peak summer temperatures. Natural gas accounts for a smaller share of electricity generation during winter because total electricity demand at that time is lower, and demand for natural gas for heating is higher. Questions 12-14. Which of the following ideas are mentioned in the text? Select three ideas in the same order as they appear in the text. a. More electricity is used in the summer months than in the winter in the U.S. b. More natural-gas generation is required in winter than in summer in the U.S. c. Most U.S. heating appliances are powered by natural gas as well as electricity. d. Residents’ health can be affected when the energy supply is interrupted. e. The demand and supply of electricity in the U.S. is linked to the seasons. f. The electricity supply fails when natural gas-fired generation is disrupted. 12. Answer 1 Question 12-14[select: , a. More electricity is used in the summer months than in the winter in the U.S., b. More natural-gas generation is required in winter than in summer in the U.S., c. Most U.S. heating appliances are powered by natural gas as well as electricity., d. Residents’ health can be affected when the energy supply is interrupted., e. The demand and supply of electricity in the U.S. is linked to the seasons., f. The electricity supply fails when natural gas-fired generation is disrupted.]13. Answer 2 Question 12-14[select: , a. More electricity is used in the summer months than in the winter in the U.S., b. More natural-gas generation is required in winter than in summer in the U.S., c. Most U.S. heating appliances are powered by natural gas as well as electricity., d. Residents’ health can be affected when the energy supply is interrupted., e. The demand and supply of electricity in the U.S. is linked to the seasons., f. The electricity supply fails when natural gas-fired generation is disrupted.]14. Answer 3 Question 12-14[select: , a. More electricity is used in the summer months than in the winter in the U.S., b. More natural-gas generation is required in winter than in summer in the U.S., c. Most U.S. heating appliances are powered by natural gas as well as electricity., d. Residents’ health can be affected when the energy supply is interrupted., e. The demand and supply of electricity in the U.S. is linked to the seasons., f. The electricity supply fails when natural gas-fired generation is disrupted.]多项填空题