Unit 4 第2课时 Reading time & Project（分层作业）英语沪教版五四制三年级上册（新教材）

**基本信息** 小学英语新授课同步练，以"基础-提升-拓展"三层设计构建词汇→句型→语篇的递进路径，助力语言能力与思维品质发展。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础练|核心词汇（lake, hot等）、名词复数等基础语法|首字母填空、单选及单词适当形式填空，夯实基础| |提升练|句型转换（一般疑问句、否定句等）、情景对话|句子改写、对话补全，强化语言运用能力| |拓展练|语篇理解与信息提取|短文判断正误，提升综合理解与逻辑思维|

Unit 4 Water in our life 第2课时 Reading time & Project 基础练 Ⅰ.Read and write (根据首字母提示完成句子) 1.We can find water in l______, rivers and seas. 2.When it is h______, water becomes water vapour. 3.When it is very cold, water becomes i______. 4.We can see water e______ in nature. 5.When it is cold, water vapour b______ water. Ⅱ.Read and choose（读一读，选出正确的答案） ( )1. Grandpa grows lots of ________ in his garden. A. strawberry B. strawberries C. strawberrys ( )2. The plant has many ________. A. leaf B. leafs C. leaves ( )3. I grow some fruit ________ you. A. for B. to C. at ( )4. —________ are you doing? —I’m growing plants. A. Where B. What C. Who ( )5. —Is it a tomato plant? —________ A. Yes, it is. B. Yes, it isn’t. C. No, it is. Ⅲ. Fill in the blanks with the given words in their proper forms (用所给单词适当形式填空) 1.When it is hot, ______ (water) becomes water vapour. 2.We can see many ______ (lake) in the nature park. 3.When it is cold, water vapour ______ (become) water. 4.When it is very cold, water becomes ______ (ice). 5.We can find water in ______ (river) and seas. 提升练 Ⅳ. Read and choose. (选择合适的单词补全句子) everywhere hot cold becomes ice 1.We can see water ______ in nature. 2.When it is ______, water becomes water vapour. 3.When it is very ______, water becomes ice. 4.When it is cold, water vapour ______ water. 5.In winter, we can see much ______ outside. Ⅴ.Rewrite the sentences. (按要求完成句子) 1. Water becomes water vapour.（改为一般疑问句） ______ water ______ water vapour? 2. When it is very cold, water becomes ice.（对划线部分提问） ______ ______ water ______ ice? 3. We can see water everywhere.（改为否定句） We ______ ______ water everywhere. 4. It is hot. Water becomes water vapour.（合并句子） ______ ______ ______, water becomes water vapour. 5. We see water in lakes.（改为单数句） ______ see water in ______ ______. Ⅵ.Read and choose(从方框选择句子补全对话，有一项多余) A. When does water become ice? B. Where can we find water? C. When does water become water vapour? D. It becomes water vapour. E. Do you like water? Tom: Hi, Amy. Let’s talk about water. Amy: OK. 1.______ Tom: We can find it in lakes, rivers and seas. Amy: 2.______ Tom: When it is hot. 3.______ Amy: 4.______Tom: When it is very cold. Amy: Wow, water is amazing. 拓展练 Ⅶ.Read and choose（根据短文内容，判断正（T）误（F）) Water in nature We see water everywhere. Water is in lakes, rivers and seas. It is also in the air, clouds, rain and snow. When it is hot, water becomes water vapour. When it is cold, water vapour becomes water. When it is very cold, water becomes ice. Water changes its form with different temperatures. Water is very important for plants, animals and us. ( )1. We can find water in lakes and rivers. ( )2. Water can be in the air. ( )3. When it is cold, water becomes water vapour. ( )4. Water becomes ice when it is very cold. ( )5. Water is not important for living things. 答案与解析 Ⅰ. Read and write (根据首字母提示完成句子) 1. lakes 解析：和 rivers、seas 并列，用复数。句意：我们可以在湖泊、河流和大海中找到水。 2. hot 解析：hot 热的。句意：天气热的时候，水变成水蒸气。 3. ice 解析：ice 冰。句意：天气非常寒冷时，水变成冰。 4. everywhere 解析：everywhere 到处，处处。句意：在大自然中我们到处都能看见水。 5. becomes 解析：主语 water vapour 是单数，一般现在时动词用三单。句意：天气冷的时候，水蒸气变成水。 Ⅱ.Read and choose（读一读，选出正确的答案） 1. B 解析：lots of 后接复数名词；strawberry 变 y 为 i 再加es → strawberries。 2. C 解析：many 后接复数，leaf 的复数是 leaves。 3. A 解析：grow sth for sb 为某人种植某物，介词 for。 4. B 解析：What are you doing? 你正在做什么，对动作提问用 what。 5. A 解析：Is it…? 一般疑问句，肯定回答 Yes, it is. III. Fill in the blanks with the given words in their proper forms (用所给单词适当形式填空) 1.water 解析：water 不可数名词，无需变形。 2. lakes 解析：many 后接可数名词复数，lake→lakes。 3. becomes 解析：主语 water vapour 视作单数，动词用三单 becomes。 4. ice 解析：ice 不可数名词。 5. rivers 解析：和 seas 并列，river 变复数 rivers。 IV. Read and choose.(选择合适的单词补全句子) 1.everywhere 句意：在大自然中到处都可以看见水。 2. hot 句意：天气热的时候，水变成水蒸气。 3. cold 句意：天气非常寒冷的时候，水变成冰。 4. becomes 句意：天冷的时候，水蒸气变成水。 5. ice 句意：冬天，我们在外面能看见很多冰。 V.Rewrite the sentences.(按要求完成句子) 1.Does；become 解析：主语 water 是单数，一般现在时，变一般疑问句借助助动词 Does，后面动词还原为 become。 2. When does；become 解析：划线部分是时间，用 When 提问；主语 water 单数，助动词 does，动词还原 become。 3. can’t see 解析：情态动词 can 变否定直接加 not，can’t + 动词原形。 4. When it’s hot 解析：when 引导时间状语从句，合并两个句子。 5. I；a lake 解析：we 改为 I；lakes 复数改单数 a lake。 VI.Read and choose (从方框选择句子补全对话，有一项多余) B C D A 解析： 1.B 根据答句回答水的位置，提问 “我们能在哪里找到水”。 2.C 根据答句 “When it is hot”，提问水什么时候变成水蒸气。 3.D 承接上文，说明水变成水蒸气。 4.A 根据答句 “When it is very cold”，提问水什么时候变成冰。 VII.Read and choose（根据短文内容，判断正（T）误（F）） 1.T 解析：原文 Water is in lakes, rivers and seas。 2. T 解析：原文 It is also in the air。 3. F 解析：天气热的时候水变成水蒸气，不是冷的时候。 4. T 解析：原文 When it is very cold, water becomes ice。 5. F 解析：原文 Water is very important for plants, animals and us，水对生物很重要。 2 / 2 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $