1. Fear can hold you prisoner. Hope can set you free. 2. There’s no harm in hoping for the best as long as you’re prepared for the worst. 3. Humor is almost always anger with its make-up on. 4. The most important things are the hardest to say. They are the things you get ashamed of, because...

1.forest fires 森林火灾 Forest fires can burn out of control and create hazy weather conditions. 森林大火会烧到无法控制的程度，并且造成烟雾重重的天气情况。 2.acid rain 酸雨 The acid rain ruined the soil for the next three generations. 酸雨会毁掉接下来的三代人的土壤 3.global warming全球变暖 Burning fossil fuels is a major cause of global...