Unit5知识点-Check Your Progress练习 2025-2026学年北师大版八年级英语下册

八年级英语下册Unit5知识点-Check Your Progress练习 小试牛刀 A. 选用方框中的短语填空（每个限用一次） | environmental problems | live a green life | replace old light bulbs | turn off computers | a waste of electricity | 1. The world is facing different kinds of ____________________ like pollution and global warming. 2. To ____________________, we can save energy and recycle things. 3. You can ____________________ with LED lights to save electricity. 4. When you’re not using your computer, you should ____________________. 5. Leaving lights on in an empty room is ____________________. B. 句型转换（改为一般疑问句并作肯定或否定回答） 1. We should replace old light bulbs with LED lights. 一般疑问句：_________________________________________________ 肯定回答：_________________ 否定回答：_________________ 2. The electricity bill is very expensive. 一般疑问句：_________________________________________________ 肯定回答：_________________ 否定回答：_________________ 3. Your family can save energy by turning off unused lights. 一般疑问句：_________________________________________________ 肯定回答：_________________ 否定回答：_________________ 配套练习 A. 单项选择（★） 从A、B、C、D中选择最佳答案。 1. Which of the following is an environmental problem? A. Saving energy. B. Global warming. C. Recycling cans. D. Planting trees. 2. What does Helen say when she sees the electricity bill? A. “How expensive it is!” B. “What a cheap bill!” C. “It doesn’t matter.” D. “Let’s pay more.” 3. What does James suggest doing to save electricity? A. Use more lights. B. Replace old bulbs with LED lights and turn off computers when not in use. C. Leave computers on all night. D. Use more electricity. 4. The sentence “______ a waste of electricity!” should be filled with ______. A. How B. What C. Which D. Why 5. What does “That is sensible!” mean? A. That is silly. B. That is a smart idea. C. That is expensive. D. That is impossible. B. 完成句子（★★） 根据对话内容，用正确的词汇完成句子。 1. 你看到我们的电费账单了吗？ Have you seen our ______ ______, Helen? 2. 它多贵啊！ ______ expensive it is! 3. 让我们把所有旧灯泡换成LED灯吧。 Let’s ______ all the old light ______ with LED lights. 4. 我们需要在不使用电脑时把它们关掉。 We need to ______ our computers ______ when we’re not using them. 5. 那真是明智的做法！ ______ is sensible! 拓展思考 写一段话（至少5句）制定你家今年要遵守的五条绿色生活行动（green resolutions）。使用 We will / We should / We can 等表达，并至少使用一个感叹句（What / How）。 _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ 参考答案与解析 小试牛刀 A 1. environmental problems 2. live a green life 3. replace old light bulbs 4. turn off computers 5. a waste of electricity 小试牛刀 B 1. Should we replace old light bulbs with LED lights? Yes, we should. / No, we shouldn’t. 2. Is the electricity bill very expensive? Yes, it is. / No, it isn’t. 3. Can your family save energy by turning off unused lights? Yes, they can. / No, they can’t. 配套练习 A 1. B（全球变暖） 2. A（How expensive it is!） 3. B（换LED灯，关电脑） 4. B（What a waste of electricity!） 5. B（明智的） 配套练习 B 1. electricity bill 2. How 3. replace, bulbs 4. turn, off 5. That 拓展思考（示例） Our family’s green resolutions for this year: First, we will replace all old bulbs with LED lights. How easy it is to save energy! Second, we will turn off computers and TVs when no one is using them. Third, we will take shorter showers to save water. What a simple way to help the planet! Fourth, we will bring reusable bags when shopping — no more plastic bags. Fifth, we will recycle all paper, cans and bottles. I hope everyone will join us. Together we can make a greener world. 1 学科网（北京）股份有限公司 $