Unit6知识点-Lesson2练习2025-2026学年北师大版英语七年级下册

七年级英语下册Unit6知识点-Lesson2练习 小试牛刀 A. 用所给动词的适当形式填空（一般现在时） 1. Penguins __________ (have) wings, but they __________ (can, not) fly. 2. They __________ (live) in very cold places. 3. Penguins __________ (stay) together to keep warm. 4. Dolphins __________ (be) clever and they __________ (remember) things well. 5. A dolphin __________ (swim) very fast. 6. Dolphins __________ (like) people and sometimes __________ (save) people’s lives. 7. Penguins’ parents __________ (look after) their babies together. B. 用 can 或 can’t 填空 1. Penguins have wings, but they __________ fly. 2. Dolphins __________ swim very fast. 3. Penguins __________ live in water and on land. 4. Dolphins __________ remember things well. 5. A penguin __________ fly in the sky, but it __________ swim very well. 6. Dolphins __________ be friendly to people. C. 用 and 或 but 连接句子 1. Penguins have wings. They cannot fly. ________________________________________________ 2. Dolphins are clever. They remember things well. ________________________________________________ 3. Penguins live in cold places. They stay together to keep warm. ________________________________________________ 4. Dolphins like people. They sometimes save people’s lives. ________________________________________________ 5. Penguins cannot fly. They can swim very fast. ________________________________________________ D. 句型转换（改为一般疑问句并作肯定/否定回答） 1. Penguins live in very cold places. 一般疑问句：________________________________________ 肯定回答：________________ 否定回答：________________ 2. Dolphins can swim fast. 一般疑问句：________________________________________ 肯定回答：________________ 否定回答：________________ 3. Penguins stay together to keep warm. 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. “Penguins have wings, but they cannot fly.” 这句话中 “but” 表示： A. 并列 B. 转折 C. 因果 D. 选择 2. 下列哪种动物生活在非常寒冷的地方？ A. dolphin B. penguin C. lion D. elephant 3. “Dolphins are friendly to people.” 中的 “friendly” 意思是： A. 害怕的 B. 友好的 C. 凶猛的 D. 孤独的 4. 根据课文，企鹅为什么待在一起？ A. 为了捕食 B. 为了保暖 C. 为了玩耍 D. 为了迁徙 5. 下列句子中，连词使用正确的是： A. Penguins cannot fly, but they can swim. B. Penguins cannot fly, and they can swim. C. Penguins cannot fly, so they can swim. D. Penguins cannot fly, or they can swim. B. 完成句子（★★） 根据中文提示，用正确的词汇或连词完成句子。 1. 企鹅有翅膀，但它们不会飞。 Penguins have wings, __________ they __________ fly. 2. 企鹅生活在寒冷的地方。它们待在一起保暖。 Penguins live in cold places. They stay together __________ keep warm. 3. 海豚很聪明，它们记得很清楚。 Dolphins are clever, __________ they remember things well. 4. 海豚对人友好，有时救人。 Dolphins are friendly to people and sometimes __________ people’s lives. 5. 企鹅父母一起照顾宝宝。 Penguin parents look after their babies __________. C. 补全对话（★★★） 根据上下文，从方框中选择合适的句子完成对话。 A. They stay together to keep warm. B. They are clever and friendly. C. They have wings, but they cannot fly. D. They swim fast and remember things well. Tom: What do you know about penguins? Lucy: They live in very cold places. (1) __________ Tom: Can they fly? Lucy: No. (2) __________ But they can swim very well. Tom: What about dolphins? Lucy: (3) __________ Tom: What can dolphins do? Lucy: (4) __________ They sometimes even save people’s lives. 拓展思考 Part 1（介绍企鹅或海豚） 选择企鹅或海豚，写一段介绍（至少5句）。包括它们的外貌、生活习性、能力等。使用 can / can’t 和 and / but。 ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ Part 2（比较企鹅和海豚） 写一段话（至少5句），比较企鹅和海豚的相同点和不同点。使用 both, but, however, and 等连词。 ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ Part 3（你的观点） 为什么研究动物的生活习性很重要？写一段话（至少5句），说明你的看法。使用 because, so that, can, help us 等表达。 ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ 参考答案与解析 小试牛刀 A 1. have, can’t 2. live 3. stay 4. are, remember 5. swims 6. like, save 7. look after 小试牛刀 B 1. can’t 2. can 3. can 4. can 5. can’t, can 6. can 小试牛刀 C 1. Penguins have wings, but they cannot fly. 2. Dolphins are clever and they remember things well. 3. Penguins live in cold places and they stay together to keep warm. 4. Dolphins like people and they sometimes save people’s lives. 5. Penguins cannot fly, but they can swim very fast. 小试牛刀 D 1. Do penguins live in very cold places? Yes, they do. / No, they don’t. 2. Can dolphins swim fast? Yes, they can. / No, they can’t. 3. Do penguins stay together to keep warm? Yes, they do. / No, they don’t. 配套练习 A 1. B 2. B 3. B 4. B 5. A 配套练习 B 1. but, can’t 2. to 3. and 4. save 5. together 配套练习 C 1. A 2. C 3. B 4. D 拓展思考（示例） Part 1 Penguins are amazing birds. They live in very cold places like Antarctica. They have wings, but they cannot fly. They can swim very fast in the water. Penguins stay together to keep warm. The parents look after their babies together. They are very cute and hard-working. Part 2 Both penguins and dolphins live in or near water. Penguins cannot fly, but they can swim. Dolphins can swim too, and they are very fast. Penguins live in cold places, but dolphins live in warm and cool seas. Both animals are friendly to their families. Penguins stay together to keep warm, while dolphins live in groups to hunt and play. Part 3 It is important to study animals’ living habits because it helps us understand them better. When we know what animals need, we can protect them. For example, penguins need cold places. If the earth gets warmer, they may lose their home. Studying habits also helps us learn from animals. Dolphins are clever and friendly, and we can learn how to work together. So, studying animals is good for both them and us. 1 学科网（北京）股份有限公司 $