例:There is a book on the bed. → There isn' t a book on the bed. There are some oranges in her bag. →There aren't any oranges in her bag. 结构:Is /Are there + 主语+地点? 肯定回答:Yes, there is/ are. 否定回答:No, there isn't/ aren't. 概念 There be 句型表示“存在…”有“”, 强调某处有某物。其中be动词有时 态和单复数变化。 结构 There be+主语(人或物名词)+地点 There is + 名词单数或者不可数名词 There are + 名词复数 tree birds cat There is a cat under the tree. There are three bird s in the tree. Байду номын сангаас 就近原则: be 动词只能由离 它最近的那个 主语来决定。 There is a clock and two CDs on the drawer. There are two CDs and a clock on the drawer. 结构:There be not +主语+地点。( 注 意肯定句中的some变为any。) summary there be 句型有特点,主语跟在be 后边, 单数主语用is,复数用are记心间, 多个主语并列时,be 随身边主语变。 变否定很简单,be后要把not 添, 变问句,也不难,把be 提到there前, 肯定句中用some,否定疑问any 换。 ?There is a radio on the desk. Is there a radio on the desk ? Yes, there is. No, there isn't . Exercise: choose your answer 选择:A: are 或者 B: is 1.There ___is___ a blackboard in the classroom. 2.There ___is___ a flag in the classroom. 3.There __a_r_e__ lots of desks in the classroom. 4.There __i_s___ a door in the classroom. 5.There __a_r_e__ many lights in the classroom. 6.There __a_r_e__ two fans in the classroom. 7.There __i_s___ some water in the bottle. 8.There __i_s___ some chalk on the desk.