This was the pig` s house.There was a big mouse.This is the cat` s house.There isn` t a mouse.Listen and answer:Does London look different now?Does London look different now?Yes, it does.What is different ?What is different ?What is different ?There was a house.There weren` t any benches here before.What is different?There are birds, too.There` s a clock. There wasn` t a clock here before.There is one now.What can they do?feed the birds现在时过去时一个(单数)is/ isn’twas/wasn’t 两个或两个 以上(复数)are/ aren’twere/weren’tThere be 句型用法There weren’t any benchees here before.There was only a house.beforeNow你能用 There is/ There was , There are / There were,There wasn’t / There weren’t说一说公园以前和现在有什么不同 ?There wasn’t a clock here before.There is one now.beforeNow1._______________ any benches here before. 2._______________ only a house before.4._______________ one now.3._______________ a clock here before.( 没有)5._______________ many sweets.6._______________ many fruits.7._______________ children’s paintings on the walls.8._______________ lots of games.用 there be 的适当形式填空。There weren’tThere wasThere wasn’tThere isThere areThere areThere areThere are