广州中考历届英语口语试题
Most of us think that people are the most important things on earth, but we aren’t. We are really much less important than plants! If all the people on earth die tomorrow,  life will not stop. The plants, animals and everything else will go on living. But, if all the green plants die, Earth will become a very different place. The air will change and neither animals nor people will be able to live in that air.