练习题七
文章节选： Social media has become an integral part of modern communication. It allows people to connect with friends and family, share information, and express their opinions. However, excessive use of social media can lead to negative consequences. Studies have shown that spending too much time on social media can cause feelings of anxiety and depression. Moreover, it can also lead to a decrease in productivity and an increase in procrastination.

题目： What is a potential negative consequence of excessive social media use mentioned in the passage? A. Improved communication skills B. Increased feelings of anxiety and depression C. Enhanced productivity D. Greater social connections

答案解析： 正确答案是B。这是一道细节理解题。文章中提到，"Studies have shown that spending too much time on social media can cause feelings of anxiety and depression." 这说明过度使用社交媒体可能导致焦虑和抑郁情绪的增加。

练习题八
文章节选： The development of renewable energy sources is crucial for reducing our reliance on fossil fuels. Solar energy, for example, is a clean and abundant source of power that can be harnessed through solar panels. Wind energy is another renewable option that utilizes wind turbines to generate electricity. By investing in these technologies, countries can decrease their carbon footprint and contribute to a more sustainable future.

题目： Which of the following is a renewable energy source mentioned in the passage? A. Coal B. Solar energy C. Oil D. Natural gas

答案解析： 正确答案是B。这是一道细节理解题。文章中提到，"Solar energy, for example, is a clean and abundant source of power that can be harnessed through solar panels." 这说明太阳能是一种可再生能源，可以通过太阳能电池板来利用。

练习题九
文章节选： In the field of education, technology has transformed the way students learn and teachers teach. Online learning platforms have made education more accessible and flexible. Students can now take courses from anywhere in the world and at any time that suits them. Additionally, teachers can use various digital tools to enhance their lessons and engage students more effectively. For instance, interactive videos and virtual reality can provide immersive learning experiences.

题目： What has technology made possible in the field of education? A. More traditional teaching methods B. Less interaction between students and teachers C. More accessible and flexible learning options D. Fewer educational resources available

答案解析： 正确答案是C。这是一道细节理解题。文章中提到，"Online learning platforms have made education more accessible and flexible." 这说明技术使得教育更加易于获取和灵活，学生可以在任何地方和任何时间学习课程。