(课件网) Unit 3 Language in use Language practice There are thirty students in my class. Are there computers on everyone's desk No，there aren't. Is there a map of the world No，there isn't. How many students are there in your class The library is on the left of the playground. there be句型 构成：there be句型表示的是 “某处有(存在)某人或某物”，其结构为“There be(is，are)＋名词＋地点状语．”。 典例 在我们班有五十二名学生。 _____ _____fifty- two students in our class. 【点拨】固定结构，“在我们班(某处)有五十二名学生 (某人)”应用there be句型。 There are 语法讲解 there be 句型的否定句 考点 1 典例 1 【点拨】there be句型否定句式的构成和含有be动词的其他句型一样，在be后加上“not”。也可用“no”来表示。即：no＋n.(名词)＝ not a/an/any＋n.(名词)。 There is an orange in her bag. (改为否定句) _____ There isn't an orange in her bag./There is no orange in her bag. 典例 2 【点拨】注意：no＋n.(可数名词单数)＝ not a/an＋n.(可数名词单数)；no＋n.(可数名词复数)＝ not any＋n.(可数名词复数)；no＋n.(不可数名词)＝ not any＋n.(不可数名词)。 There are some oranges in her bag.(改为否定句) _____ There aren't any oranges in her bag./There are no oranges in her bag. there be 句型的一般疑问句 考点 2 典例 【点拨】there be句型的一般疑问句变化只需把be动词移到句首，再在句尾加上问号即可。注意疑问句和否定句中，some改为any，something改为anything。 There is some money in her handbag. (改为一般疑问句) _____ Is there any money in her handbag there be句型的特殊疑问句 考点 3 典例 1 【点拨】对主语提问：当主语是人时，用 “Who's＋介词短语？”；当主语是物时，用 “What's＋介词短语？”。注意：无论原句的主语是单数还是复数，对其提问时一般都用be动词的单数形式(回答时却要根据实际情况来回答)。 There is a bird in the tree. (对a bird提问) _____ What's in the tree？ 典例2 【点拨】对数量提问，一般有两种提问方式：如果主语是可数名词，无论是单数还是复数，都用“How many＋可数名词复数＋are there＋介词短语？”表示；如果主语是不可数名词，则用“How much＋不可数名词＋is there＋介词短语？”表示。 There are twelve months in a year. (对twelve提问) _____ How many months are there in a year there be句型中be动词的用法 考点 4 魔法记忆 be用复数还是单，与其主语很相关。 主语单数、不可数，则用is记清楚。 倘若复数作主语，用are一定要记住。 并列结构为主语，是is是are就近取。 there be句型和have/has的区别 考点 5 典例 【点拨】there be句型表示 “存在有”，have/has表示 “拥有” “所有”，两者不能同时使用。 翻译 (1)桌子上有三本书。(2)我有三本书。 _____ (1) There are three books on the desk. (2) I have three books. There be＋主语＋doing＋介词短语． 考点 6 典例 【点拨】 “有……在做……”应用“There be＋主语＋doing＋介词短语．” 翻译：在教室里有一个女孩在看书。 _____ There is a girl reading in the classroom. Work in pairs. Ask and answer the questions about your school. 1 How many classrooms are there in your school 2 Is there a library in your school 3 Are there any science labs 4 How many students are there in your class 5 How many are boys and how many are girls 6 Are there any ... ...
