Unit 4 Lesson 3（分层作业）英语鲁科版五四制四年级上册（新教材）

Unit 4 Weather and our life Lesson 3 lt's snowing 分层作业 基础练 一、找出每组中不同类单词或短语，将答案序号填在题前括号内。 ( )1. A. snowing B. raining C. windy D. shining ( ) 2. A. Harbin B. Beijing C. Shanghai D. cold ( ) 3. A. put on B. take off C. take care D. look at ( ) 4. A. snow B. rain C. wind D. snowy ( ) 5. A. school B. park C. library D. raining 二、根据句意补全单词 1.Look! It's ______ (下雪) in Harbin. The ground is white everywhere. 2.【新情境・数学-温度对比】It's -5°C in Harbin and 15°C in Shanghai. Shanghai is ______°C warmer than Harbin. 3.It's raining in Beijing. You should ______ ______ (穿上) your raincoat before going out. 4.It's snowing heavily. We should walk slowly on the road to avoid ______ (摔倒). 5.Jenny says "______ ______ (保重)" to her dad before going to school. 三、汉译英。 1.哈尔滨正在下雪，多美啊！ It's ______ in Harbin. How ______ it is! 2.北京正在下雨。你应该穿上雨衣。 It's ______ in Beijing. You should ______ ______ your raincoat. 3.上海的天气怎么样？正在下雨吗？ How's the weather in Shanghai? ______ it ______? 4.拉萨很冷。出门前穿上你的夹克衫。 It's ______ in Lhasa. ______ ______ your jacket before going out. 5.三亚很暖和，哈尔滨却在下雪。 It's ______ in Sanya, but it's ______ in Harbin. 提升练 4、 【新情境・学科融合】 1.【数学-温度计算】The temperature in Lhasa is -2°C~5°C, and the temperature in Sanya is 22°C~28°C. What's the difference between the highest temperature of Sanya and the lowest temperature of Lhasa? ___________________________________________________________ 2.【科学-天气与出行】It's snowing in Harbin, and the road is icy. What should drivers do to keep safe? ___________________________________________________________ 3.【地理-城市气候】Beijing is in northern China, and it often rains in autumn. Sanya is in southern China. What's the usual weather like in Sanya in autumn? ___________________________________________________________ 4.【数学-时间规划】Jenny needs to get to school at 8:00 a.m. It takes 15 minutes to walk to school and 20 minutes to get ready. If it's snowing and she needs 5 more minutes to walk, what time should she get up? ___________________________________________________________ 5.【新情境・生活应用】Your pen pal lives in Shanghai, and he tells you it's raining there. What gift will you send him to help with the rainy weather? Why? ___________________________________________________________ 6.【科学-植物适应】It's snowing in Harbin for a long time. How do pine trees survive the cold snowy weather? ___________________________________________________________ 7.【数学-数量统计】There are 18 students in a class. 10 of them like snowy days, 5 like rainy days, and the rest like sunny days. How many students like sunny days? ___________________________________________________________ 8.【语文-句子创作】Write a sentence with "snowing" to describe a scene on your way to school. ___________________________________________________________ 5、 连词成句。 1.snowing, it, in, is, Harbin, heavily (.) ___________________________________________________________ 2.weather, the, in, how's, Beijing, today (?) ___________________________________________________________ 3.raining, it's, you, your, should, put, raincoat, on (.) ___________________________________________________________ 4.beautiful, is, it, snowy, what, a, day (!) ___________________________________________________________ 5.take care, dad, Jenny, says, to, before, school, going (.) ___________________________________________________________ 六、单项选择。 ( ) 1. 【新情境・生活应用】It's snowing in Harbin. What kind of gloves should you wear to keep your hands warm? A. Cotton gloves B. Leather gloves C. Thick down gloves D. Thin gloves ( ) 2. —How's the weather in Shanghai today?—______ A. It's raining. B. I like Shanghai. C. It's a big city. D. I'm fine. ( ) 3. 【数学 - 温度认知】Which temperature is suitable for wearing a T-shirt outside? A. -3°C~2°C B. 10°C~15°C C. 25°C~30°C D. -10°C~-5°C ( ) 4. It's snowing outside. You ______ walk too fast on the road. A. should B. shouldn't C. can D. must ( ) 5. 【科学-天气与健康】It's raining in Beijing, and the air is humid. What should you do to prevent catching a cold? A. Wear a thin shirt B. Stay in a cold room C. Put on a warm coat D. Drink cold water ( ) 6. —It's snowing! Let's go out to make a snowman.—______ But we need to put on thick coats first. A. What a pity! B. No, we can't. C. Great D. That's all right. ( ) 7. 【数学 - 数量计算】There are 6 cities. Each city has a morning and an afternoon weather report. How many weather reports are there in total for one day? A. 6 B. 12 C. 18 D. 24 ( ) 8. What does "take care" mean in the sentence "All right. Take care!"? A. 加油 B. 保重 C. 快点 D. 再见 七、根据情境回答问题 1.Your friend wants to go to the park to fly kites, but it's snowing heavily. What will you say to him/her? ___________________________________________________________ 2.You are going to visit your uncle in Lhasa, and it's very cold there. What things will you pack in your suitcase? ___________________________________________________________ 3.At school, the PE class is supposed to be held outside, but it starts raining suddenly. How will you suggest changing the class activity? ___________________________________________________________ 八、用所给单词适当形式填空。 1.It ______ (snow) in Harbin now. The children are making a snowman. 2.Jenny ______ (say) "take care" to her dad every morning before going to school. 3.Yesterday, it ______ (rain) in Beijing. We ______ (put) on our raincoats to go out. 4.My sister ______ (not like) snowy days because she thinks it's too cold. 5.—What ______ you ______ (do) if it's snowing tomorrow? 6.—We will stay at home and watch a movie. 拓展练 九、阅读短文，判断正(T)误(F)。 The Weather Across China Today Good morning, everyone! Let's check the weather across China today. In Harbin, it's snowing heavily. The temperature is -5°C~0°C. People need to wear thick down coats and hats. In Beijing, it's raining. The temperature is 8°C~12°C. Don't forget to take an umbrella when you go out. In Shanghai, it's cloudy with a little rain. The temperature is 15°C~18°C. A thin jacket is enough. In Sanya, it's sunny and warm. The temperature is 23°C~27°C. You can wear T-shirts and shorts. In Lhasa, it's windy and cold. The temperature is -3°C~4°C. Put on your warm jacket and scarf. ( ) 1. It's snowing in Harbin today, and people need to wear thick clothes. ( ) 2. The temperature in Beijing is higher than that in Harbin. ( ) 3. It's sunny in Shanghai, so people can wear T-shirts. ( ) 4. It's warm in Sanya, and the temperature is 23°C~27°C. ( ) 5. It's windy and cold in Lhasa, so people should put on scarves. 10、 【新情境・语文 + 地理】 Write a short passage about the weather in two cities you know and your plans for different weathers. Include: 1. What the weather is like in the two cities. 2.What you will do if you are in each city. (4-6 sentences) 参考解析 基础练 一、找出每组中不同类的单词或短语 1.答案：C 解析：A（下雪的）、B（下雨的）、D（发光的）均为动词现在分词表状态，C（有风的）是形容词，类别不同。 2.答案：D 解析：A（哈尔滨）、B（北京）、C（上海）均为城市名称，D（冷的）是描述温度的形容词，类别不同。 3.答案：C 解析：A（穿上）、B（脱下）、D（看）均为动作短语，C（保重）是礼貌用语短语，类别不同。 4.答案：D 解析：A（雪）、B（雨）、C（风）均为天气相关名词，D（下雪的）是形容词，类别不同。 5.答案：D 解析：A（学校）、B（公园）、C（图书馆）均为地点名词，D（下雨的）是形容词，类别不同。 二、根据句意补全单词 1.答案：snowing 解析：“下雪” 对应英文 “snowing”，结合 “Look!” 可知动作正在进行，用现在分词。 2.答案：20 解析：15°C 减去（-5°C）等于 20°C，考查负数温度差值计算。 3.答案：put on 解析：“穿上” 是固定短语 “put on”，情态动词 “should” 后接动词原形。 4.答案：falling 解析：“避免摔倒” 是 “avoid falling”，“avoid” 后接动词 - ing 形式，符合科学 - 天气安全常识。 5.答案：Take care 解析：“保重” 是固定短语 “Take care”，句首首字母大写，与文中情境一致。 三、汉译英 1.答案：snowing; beautiful 解析：“下雪” 是 “snowing”，“美的” 是 “beautiful”，符合感叹句结构。 2.答案：raining; put on 解析：“下雨” 是 “raining”，“穿上” 是 “put on”，情态动词后接动词原形。 3.答案：Is; raining 解析：询问 “是否正在下雨” 用现在进行时的一般疑问句 “Is it raining?”。 4.答案：cold; Put on 解析：“冷的” 是 “cold”，“穿上” 是 “put on”，句首首字母大写。 5.答案：warm; snowing 解析：“暖和的” 是 “warm”，“下雪” 是 “snowing”，用现在分词表正在进行的动作。 提升练 四、【新情境・学科融合】 1.答案：The difference is 30°C. 解析：三亚最高温 28°C 减去拉萨最低温 - 2°C，即 28 - (-2) = 30°C，考查负数温度计算。 2.答案：Drivers should drive slowly and keep a safe distance from other cars. 解析：雪天路面结冰，司机需减速并保持安全车距，符合科学 - 天气与出行常识。 3.答案：It's usually warm and sunny in Sanya in autumn, and the temperature is often above 20°C. 解析：三亚位于中国南方，秋季通常温暖晴朗，符合地理 - 城市气候常识。 4.答案：She should get up at 7:20 a.m. 解析：8:00 减去 15 分钟步行、20 分钟准备时间和 5 分钟额外步行时间，即 7:20，考查时间规划计算。 5.答案：I will send him a foldable umbrella. Because it's small and easy to carry, which is convenient for him to use on rainy days. 解析：折叠伞便携，适合雨天使用，符合生活应用逻辑，合理即可。 6.答案：Pine trees have thick bark to keep warm, and their leaves are needle-shaped to reduce water loss and prevent snow from pressing them down. 解析：松树的树皮和针叶结构适应寒冷雪天，符合科学 - 植物适应常识。 7.答案：3 students like sunny days. 解析：18 名学生减去 10 名喜欢下雪天和 5 名喜欢下雨天的，剩余 3 名喜欢晴天，考查数量减法。 8.答案：It's snowing on my way to school today. The trees by the road are covered with snow, like white clothes. 解析：用 “snowing” 描述上学路上的场景，符合语文句子创作要求，合理即可。 五、连词成句 1.答案：It is snowing heavily in Harbin. 2.答案：How's the weather in Beijing today? 3.答案：It's raining. You should put on your raincoat. 4.答案：What a beautiful snowy day it is! 5.答案：Jenny says "take care" to dad before going to school. 六、单项选择 1.答案：C 解析：哈尔滨下雪天需穿厚羽绒手套（thick down gloves），A（棉手套）、B（皮手套）、D（薄手套）保暖性不足。 2.答案：A 解析：问句询问上海天气，答语需描述天气，A（正在下雨）符合，B（我喜欢上海）、C（它是个大城市）、D（我很好）均不匹配。 3.答案：C 解析：25°C~30°C 温度较高，适合穿 T 恤，A、D 过冷，B 偏凉，均不适合。 4.答案：B 解析：雪天路面滑，“不应该”（shouldn't）走太快，A（应该）、C（能）、D（必须）不符合语境。 5.答案：C 解析：雨天空气潮湿，穿暖和的外套（put on a warm coat）可预防感冒，A（穿薄衬衫）、B（待在冷房间）、D（喝冷水）均易感冒。 6.答案：C 解析：下雪天堆雪人是开心的事，C（太好了）符合语境，A（太遗憾了）、B（不，我们不能）、D（没关系）均不符合。 7.答案：B 解析：6 个城市每个有早晚 2 次天气预报，共 6×2=12 次，考查乘法计算。 8.答案：B 解析：“take care” 是固定短语，意为 “保重”，结合文中 “上学前对爸爸说” 的语境可判断。 七、根据情境回答问题 1.答案：I will say, "It's snowing heavily outside, so we can't fly kites. Let's stay at home and make a paper snowflake instead." 解析：告知天气不适合放风筝，推荐室内替代活动，合理即可。 2.答案：I will pack thick down coats, warm scarves, gloves and thermal underwear, because it's very cold in Lhasa. 解析：结合拉萨寒冷天气，准备保暖衣物，合理即可。 3.答案：I will suggest changing the outdoor PE class to an indoor one, like doing yoga or playing table tennis in the gym. 解析：雨天不适合户外活动，推荐室内体育活动，合理即可。 八、用所给单词的适当形式填空 1.答案：is snowing 解析：“now” 提示动作正在进行，用现在进行时 “be + 动词现在分词”，主语是 it，be 动词用 is。 2.答案：says 解析：主语是第三人称单数，谓语动词用 says，描述习惯性动作。 3.答案：rained; put 解析：“Yesterday” 提示用一般过去时，rain 的过去式是 rained；put 的过去式仍是 put。 4.答案：doesn't like 解析：主语是第三人称单数，否定句用 “doesn't + 动词原形”。 5.答案：will; do /are; going to do 解析：由 “tomorrow” 可知用一般将来时，可用 “will + 动词原形” 或 “be going to + 动词原形”。 拓展练 九、阅读短文，判断正 (T) 误 (F) 1.答案：T 解析：文中提到 “In Harbin, it's snowing heavily... People need to wear thick down coats and hats”，与题干一致。 2.答案：T 解析：北京温度 8°C~12°C，哈尔滨温度 - 5°C~0°C，北京温度高于哈尔滨，与题干一致。 3.答案：F 解析：文中说上海 “cloudy with a little rain”，不是晴天，且温度 15°C~18°C 需穿薄夹克，不适合 T 恤，与题干不符。 4.答案：T 解析：文中明确 “In Sanya, it's sunny and warm. The temperature is 23°C~27°C”，与题干一致。 5.答案：T 解析：文中提到 “In Lhasa, it's windy and cold... Put on your warm jacket and scarf”，与题干一致。 十、【新情境・语文 + 地理】 参考范文：I know two cities well: Harbin and Sanya. Today, it's snowing in Harbin, and the temperature is very low. If I am in Harbin, I will wear a thick down coat and go to play with snow—making a snowman and having a snowball fight will be very fun. In Sanya, it's sunny and warm today. If I am in Sanya, I will wear a T-shirt and go to the beach to play with sand and water. The weather in these two cities is totally different, but both can bring me happy experiences. 2 / 2 学科网（北京）股份有限公司 $