Lesson 141
Global1 Warming
Have you noticed that it's getting warmer and warmer every year? To put it simply that's because of air pollution. Scientists tell us that because of air pollution, the earth's heat cannot escape. This is known2 as global warming. If this situation is allowed to continue, it will just keep getting hotter an hotter. Then, can you imagine what will happen? We should all, therefore, do our part to sTOP polluting the air and help save the world.
全球气温上升
你有没注意到天气一年比一年变得还要暖和了呢?简言之,那是由于空气污染的原故。科学家告诉大家因为空气污染,地球的热气没办法散出去。这就是为人所知的全球变暖。假如大家任由这种情形一直持续下去,地球就会变得愈加热。那样,你能想像会发生啥事吗?因此,大家全都要尽一己之力来预防污染空气并拯救地球。