【正文】
aves off trees. And people have to wear warm winter ,It39。s always cold outside , but warm inside . Because there is heating(暖氣) in the room. ( ) 1. Spring is cold. ( ) 2. Summer is hot and dry. ( ) 3. people have to wear warm fall. ( ) 4. Wind blows the leaves off trees in winter. ( ) 5. There is heating in winter. Ⅷ、看圖回答問題。 (5 分 ) A: How many triangles are there in the picture? B:________________________________________