Unit 4 Section 2 Grammar 课件广东省深圳广州通用2024-2025学年沪教版（2024）七年级英语上册

Unit 4 The Earth Section 2 Exploring and applying rules There be句型 There be 句型结构表示“某地或某时间存在某物”。 there 是引导词, 本身无实际意义; be 是谓语动词, 真正的主语是 be 后面所接的名词。 注意：There be句型遵循就近原则，即be动词与 离它最近的主语保持一致 1. 当主语是单数时，其谓语动词采用__________形式。 2. 当主语是复数时，则谓语动词采用___________形式。 3. 如果 There be句型后的主语是几个名词时，则根据 第一个名词的数确定 be 的形式，即就近原则。 如：There is an apple and two bananas. There are two bananas and an apple. 单数 复数 4. there be 句型的肯定句、否定句和疑问式, 其句式变化见下表： （1） 肯定式: There + be+主语+其它. 如：There are some books on the table. （2） 否定式: There + be+ not+主语+其它. 如：There are any books on the table. 注：在一般疑问句和否定句中，要用any 替换掉肯定句中的some。在肯定句中，要把any改成some。 （3） 一般疑问句及其回答: Be+ there+主语+其它？ Yes, there+ be. / No, there +be+ not. （3） 一般疑问句及其回答: Be+ there+主语+其它？ 如：Are there any books on the table? Yes, there are. / No, there aren’t. 5. There be 句型 常常用how many 或how much 提问的特殊疑问句。 如：How many students in your school ? 你学校有多少学生？ There are two thousand students in our school. 我学校有两千个学生。 ★★There be 结构与 have 的区别。 （1）从结构上讲 ①have 前必须有主语， 如：I have some interesting books. 我有一些有趣的书。 ②there be结构的主语在谓语 be 的后面， 如：There are some interesting books on the desk. 书桌上有一些有趣的书。 （2）从意义上讲，两者都可译为“有”， ①have 表示“所有、占有”关系，即表示“某人有某物”。 如：Peter has a basketball. 皮特有一个篮球。 ② there be 结构表示“存在”关系，即表示“某地/某时存在某物”。 如：There are two apples on the table. 桌子上有两个苹果。 （3）some 和 any在 there be 句型中的运用： ①some 用于肯定句 如：There is some bread. ②any 用于否定句或疑问句 如：There isn’t any bread. Is there any bread? （4）and 和 or 在 there be 句型中的运用： ①and 用于肯定句 如：There is an apple and a banana on the table. 桌子上有一个苹果和一个香蕉。 ②or 用于否定句或疑问句 如：Is there an apple or a banana on the table. 桌子上有苹果还是香蕉？ 综合练习: 一、用is或are填空。 1.There________many monkeys in the mountain. 2.There_________a beautiful garden in our school. 3.There _________some water in the glass. 4.There __________some bread on the table. 5. _________there any maps on the wall? are is is is Are 二、单项选择 1.There ______ a book and three pencils on the desk. A. be　　　 B. is 　　　C. are 　　　D. am 2.There ______ any books on your desk. A. aren’t　　　 B. isn’t　　　 C. don’t　　　 D. doesn’t 3.______ _______ apples are there on the table? There are four. A. How much　　　 B. How many　　 C. How large　　　 D. How big 4.______ ________ milk is there in the bottle? There is little. A. How many　　　 B. How old　 C. How far　　　 D. How much 5.______ less milk in this bottle than in that one. A. There have B. There has C. There is D. There are 6.There isn’t ______ food in the fridge. A. some B. an C. a D. any 三.句型转换 1. There is some water in the bottle. 否定句： 一般疑问句： 特殊疑问句： 2. There are many apples in the box. 否定句： 一般疑问句： 特殊疑问句： There isn’t any water in the bottle. Is there any water in the bottle. How much water is there in the bottle? There are not many apples in the box. Are there many apples in the box. How many apples are there in the box. 四、改写句子 1. There are some cars and buses on the street. (改为一般疑问句) _______ there _______ cars or buses on the stress? 2.Is there a pay phone across from the library? (做否定回答) No, _______ ________ . 3. There is a piece of paper on the table. (改为一般疑问句) ______ there ______ piece of paper on the table? Are there isn’t Is a any 四、改写句子 4. There are two pay phones in the neighborhood. （改为否定句） There ________ two pay phones in the neighborhood? 5. There are 15 children in our class. （对划线部分提问） _______ ______ children _______ _______ in your class? aren’t How many are there Thank you $$