【導(dǎo)讀】Unit1Howoftendo. youexercise?SectionB. vegetables. greenpepper. carrottomato. cabbage. cucumber. cornonion. vegetables. potato. banana. orangegrape. fruit. pear. watermelonpeach. strawberry. fruit. pineapple. popcorncola. junkfood. vegetable. milkfruit. junkfood. Howoftendoyouhave…?Howmanyhoursdoyou…?