Unit5知识点 Cross-curricular connection练习 2025-2026学年沪教版七年级英语下册

七年级英语下册Unit5知识点-Cross-curricular connection练习 小试牛刀 A. 用括号内动词的正确形式填空（一般现在时） 1. All living things __________ (need) water. 2. Water __________ (be) an important part of all plants and animals. 3. About 95% of the weight of a cucumber __________ (be) water. 4. For animals, that figure __________ (be) usually around 60%. 5. When we __________ (be) born, about 70%–80% of our body weight __________ (be) water. 6. This number __________ (go) down as we grow up. 7. For an adult man, water __________ (make up) about 60% of the body weight. 8. The amount of water __________ (be) a bit lower for women: around 55%. 9. This __________ (be) because women usually have more body fat than men. 10. A lot of water __________ (leave) our bodies every day, so we need to replace it. 11. Every day, there __________ (be) around 1.5 litres of water in our urine. 12. The body also __________ (lose) water to help it cool down. This __________ (be) called sweat. 13. We __________ (lose) about 500 ml of water as sweat per day. 14. It __________ (be) normal to sweat a lot when we do sport or go out in hot weather. B. 用 need to, can, will 填空 1. Adults __________ drink about 2–3 litres of water per day to stay healthy. 2. If your urine is very yellow, you __________ drink more water. 3. We __________ lose water every time we go to the bathroom. 4. If we lose more than 5% of our body weight in water, we __________ get tired. 5. If we lose more than 10%, we __________ feel ill. 6. You __________ bring a water bottle every time you play sport. C. 用比较级完成句子（lower than, more than, less than） 1. The amount of water in an adult woman is __________ that in an adult man. (lower than) 2. Women usually have __________ body fat __________ men. (more than) 3. A cucumber contains __________ water __________ an adult human. (more than) 4. A newborn baby has __________ water __________ an adult. (more than) 5. An adult loses about 1.5 litres of water in urine, which is __________ the amount lost through sweat. (more than) D. 用 if 完成条件状语从句 1. __________ you lose more than 5% of your body weight in water, you will get tired. 2. __________ your urine is very yellow, you need to drink more water. 3. __________ you do sport in hot weather, you will sweat a lot. 4. __________ we don’t drink enough water, we will feel ill. 5. __________ you bring a water bottle, you can stay hydrated. 配套练习 A. 单项选择（★） 从A、B、C、D中选择最佳答案。 1. “All living things need water.” 这句话使用的时态是： A. 一般过去时 B. 一般现在时 C. 一般将来时 D. 现在进行时 2. “Adults need to drink 2–3 litres of water per day.” 中的 “need to” 表示： A. 想要 B. 需要 C. 可能 D. 必须 3. “The amount of water is lower for women.” 中的 “lower” 是： A. 原级 B. 比较级 C. 最高级 D. 副词 4. “If you lose too much water, you will feel ill.” 中的 “if” 引导的是： A. 时间状语从句 B. 条件状语从句 C. 原因状语从句 D. 结果状语从句 5. 下列句子中，一般现在时使用正确的是： A. Water is important for life. B. Water are important for life. C. Water being important for life. D. Water to be important for life. B. 完成句子（★★） 根据文章内容和语法提示，用正确的动词形式、情态动词、比较级或条件状语从句完成句子。 1. 所有生物都需要水。水是所有动植物的重要组成部分。 All living things __________ water. Water is an important part of all plants and animals. 2. 成年男性体内水约占体重的60%，成年女性略低，约为55%。 For an adult man, water makes up about 60% of body weight. The amount is a bit __________ for women: around 55%. 3. 我们每天通过尿液流失约1.5升水，通过汗液流失约500毫升水。 Every day, we lose about 1.5 litres of water in our urine, and about 500 ml of water as __________. 4. 如果你流失超过5%的体重水分，你会感到疲倦。 __________ you lose more than 5% of your body weight in water, you will get tired. 5. 记得每次运动时带上水瓶。 Remember to __________ a water bottle every time you play sport. C. 补全对话（★★★） 根据文章内容和语法知识，从方框中选择合适的句子完成对话。 A. About 60% for men and 55% for women. B. You need to drink 2–3 litres per day. C. If it is very yellow, you need to drink more water. D. Yes, about 500 ml per day. Tom: How much of our body is water? Lucy: (1) __________ Tom: How much water should we drink every day? Lucy: (2) __________ Tom: How can I tell if I need more water? Lucy: Look at your urine. (3) __________ Tom: Do we lose water through sweat? Lucy: (4) __________ D. 拓展思考（★★★） 请根据要求完成以下任务。 Part 1（描述人体水分的重要性） 用一般现在时写三句话，说明水对人体为什么重要，以及我们如何补充水分。 1. ____________________________________________________________ 2. ____________________________________________________________ 3. ____________________________________________________________ Part 2（使用条件状语从句） 用 if 写两个句子，说明在什么情况下我们需要喝更多的水。 4. ____________________________________________________________ 5. ____________________________________________________________ Part 3（综合） 写一段话（至少5句）介绍人体中的水。说明不同人群（婴儿、成年男性、成年女性）的含水量、每天流失的水分、以及脱水的风险。使用一般现在时、至少一个比较级和一个条件状语从句。 ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ 参考答案与解析 小试牛刀 A 1. need 2. is 3. is 4. is 5. are, is 6. goes 7. makes up 8. is 9. is 10. leaves 11. is 12. loses, is 13. lose 14. is 小试牛刀 B 1. need to 2. need to / should 3. will 4. will 5. will 6. should / need to 小试牛刀 C 1. lower than 2. more, than 3. more, than 4. more, than 5. more than 小试牛刀 D 1. If 2. If 3. If 4. If 5. If 配套练习 A 1. B 2. B 3. B 4. B 5. A 配套练习 B 1. need 2. lower 3. sweat 4. If 5. bring 配套练习 C 1. A 2. B 3. C 4. D 配套练习 D（参考示例） 1. Water makes up about 60% of an adult man’s body weight. 2. We lose water every day through urine and sweat. 3. We need to drink 2–3 litres of water per day to stay healthy. 4. If you do sport in hot weather, you need to drink more water. 5. If your urine is very yellow, you should drink more water. 6. Water is very important for our bodies. When we are born, about 70–80% of our body weight is water. As we grow up, this number goes down. For an adult man, it is about 60%, and for a woman, it is a bit lower (about 55%). Every day, we lose water through urine and sweat. We lose about 1.5 litres in urine and about 500 ml as sweat. If we lose more than 5% of our body weight in water, we will feel tired. If we lose more than 10%, it is dangerous. That is why we need to drink enough water every day. Remember to bring a water bottle when you play sport! 1 学科网（北京）股份有限公司 $