Unit 4 The Earth Grammar知识点清单＆同步训练2025-2026学年沪教版七年级英语上册

Unit 4 The Earth ⭐Grammar知识点清单 一、知识点清单 1. 核心概念：There be 句型 · 定义：用来表示某地存在某物 / 某人，强调 “存在有”，区别于表示 “拥有” 的 have/has。 · 教材例句： · There is more and more plastic pollution in the sea. · There are many bottles and plastic bags on the beaches. · 基本结构：There + be动词(is/are) + 主语 + 地点状语 2. There is / There are 的用法规则（教材重点） 句型 用法 缩写形式 例句 There is 后接单数可数名词或不可数名词 There's / There isn't There is a lot of plastic rubbish. There are 后接复数可数名词 There're / There aren't There are many bottles on the beach. ⚠️ 关键考点：就近原则 当主语是多个名词并列时，be 动词的形式由离它最近的名词决定： ✅ There is a lot of plastic rubbish and many paper bags on the beach.（rubbish 不可数，用 is） ✅ There are many paper bags and a lot of plastic rubbish on the beach.（paper bags 复数，用 are） 3. There be 句型的四种基本形式 句型 结构公式 例句 肯定句 There is/are + 主语 + 地点 There is a lot of paper in the blue bin. 否定句 There isn't/aren't + 主语 + 地点 There isn't any fish bone in the bin. 一般疑问句 Is/Are there + 主语 + 地点？ Are there any plastic bags on the beach? 特殊疑问句 Wh - 词 + is/are there + 地点？ What rubbish is there in each bin? 4. 高频易错点避坑 1. there be 和 have/has 混淆：there be 表示 “某地存在”，have/has 表示 “某人拥有”，两者不能混用。 ❌ There has a book on the desk. → ✅ There is a book on the desk. 2. 单复数错误：不可数名词前用 is，不能用 are。 ❌ There are some water in the bottle. → ✅ There is some water in the bottle. 3. 就近原则误用：多个主语并列时，只看离 be 动词最近的名词。 ❌ There are a pen and two books on the desk. → ✅ There is a pen and two books on the desk. 二、同步练习 基础题 一、用 There is / There are 填空 1. ______ a lot of plastic pollution in the sea. 2. ______ many things we can do to protect the sea. 3. ______ always many bottles and plastic bags on the beaches. 4. ______ a lot of rubbish on the beach. 5. ______ any other things we can do to help? 二、按教材例句写句子（Unit4 第 58 页） 根据提示，用 There is / There are 写句子： 1. broken glass / in the bin 2. fish bone / in the green bin 3. plastic bottles / in the blue bin 4. lithium batteries / in the red bin 提升题 三、句型转换（按要求改写句子） 1. There is a lot of plastic rubbish on the beach.（改为否定句） 2. There are many plastic bags in the black bin.（改为一般疑问句） 3. There is some paper in the blue bin.（对划线部分提问） 4. There are some fish bones in the green bin.（改为否定句） 5. There is a pen and two books on the desk.（改为复数句） 四、改错（每句只有一处错误） 1. There have many plastic bottles on the beach. → _______________ 2. There are a lot of water in the bottle. → _______________ 3. There is some paper bags in the bin. → _______________ 4. There are a lithium battery in the red bin. → _______________ 参考答案 一、用 There is / There are 填空 1. There is 2. There are 3. There are 4. There is 5. Are there 二、按教材例句写句子 1. There is some broken glass in the bin. 2. There is a fish bone in the green bin. 3. There are some plastic bottles in the blue bin. 4. There are some lithium batteries in the red bin. 三、句型转换 1. There isn't a lot of plastic rubbish on the beach. 2. Are there many plastic bags in the black bin? 3. What is in the blue bin? / What rubbish is there in the blue bin? 4. There aren't any fish bones in the green bin. 5. There are some pens and two books on the desk. 四、改错 1. There are many plastic bottles on the beach. 2. There is a lot of water in the bottle. 3. There are some paper bags in the bin. 4. There is a lithium battery in the red bin. 学科网（北京）股份有限公司 $