【正文】
Unit4 Green world 揚(yáng)中市第二高級(jí)中學(xué) 蘇宜昭 Tulip Sunflower Peony the Chinese national flower Discussion: are these? are they used for? do they e from? Coffee beans are used to make coffee. It originally came from Africa, although coffeedrinking started in Arab countries. Tea leaves are used to make tea. It originally came from China. Chili peppers are used as a spice to make food more tasty. In fact ,many Chinese may believe it came from China. However ,it came from Latin America. Hemp is used to make rope or carpets. And it came from the Central Asia. Question: What do we call the person doing the research on the plants? Do you know any botanists? How do scientists classify them now? How did they classify them