Unit 2 知识点-Lesson1练习 2025-2026学年北师大版八年级英语上册

八年级英语上册Unit2知识点-Lesson1练习 小试牛刀 A. 选用方框中的短语填空（每个限用一次） | keep the floor dry | use electricity wisely | follow teachers’ instructions | take good care of | stay on paths | 1. In the kitchen and bathroom, you must ____________________ to avoid slipping. 2. You mustn’t charge your phone day and night. You should ____________________. 3. In PE lessons, you must ____________________ and exercise safely. 4. You should ____________________ your personal belongings like your phone and wallet. 5. When in forests and mountains, you must ____________________ and not go off the trail. 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 a “don’t” at home? A. Keep the floor dry. B. Charge your phone day and night. C. Use knives carefully. D. Use fire safely. 2. What must you NOT do in the corridors? A. Walk quietly. B. Run or push people. C. Follow instructions. D. Keep to the right. 3. In the science lab, you have to ______. A. run around B. know how to use the equipment correctly C. bring dangerous things D. wear headphones 4. When you walk or ride a bike on the street, you shouldn’t ______. A. wear headphones B. look around C. follow traffic rules D. stay on the pavement 5. Which word means “it is against the rules to…”? A. must B. mustn’t C. have to D. don’t have to B. 完成句子（★★） 根据句子内容，用正确的词汇完成句子。 1. 小行动可以拯救我们免于大问题。 Small actions can ______ us from big ______. 2. 你必须安全地用电。 You ______ use electricity ______. 3. 在科学实验室里，你必须知道如何正确使用设备。 In the science lab, you ______ to know how to use the ______ correctly. 4. 不要戴着耳机走路或骑车。 Don’t ______ headphones when you ______ or ride a bike. 5. 待在森林和山区的路径上。 ______ on paths when in ______ and in the mountains. 拓展思考 写一段话（至少5句）给出在学校的三种安全建议。使用 must / mustn’t / have to 各至少一次。 _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ 参考答案与解析 小试牛刀 A 1. keep the floor dry 2. use electricity wisely 3. follow teachers’ instructions 4. take good care of 5. stay on paths 配套练习 A 1. B（整夜充电是错误做法） 2. B（走廊里不能跑或推人） 3. B（正确使用设备） 4. A（不戴耳机） 5. B（mustn’t 表示禁止） 配套练习 B 1. save, problems 2. must, safely 3. have, equipment 4. wear, walk 5. Stay, forests 拓展思考（示例） At school, we must follow safety rules. In the corridors, we mustn’t run or push others. In the science lab, we have to know how to use the equipment safely. In PE class, we must listen to our teacher. We mustn’t bring dangerous things to school. These rules keep everyone safe. 1 学科网（北京）股份有限公司 $