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There are many kinds of pollution around us, such as air pollution, soil pollution, noise pollution and light pollution. They are bad for our health in many ways.
Burning gas, oil and coal creates air pollution. 1．
With the increase in population and the development of industry, litter is everywhere. It makes our environment dirty. People put lots of litter into the land. In the fields, farmers use too many chemicals （化学用品）which destroy the soil. Soil pollution causes unhealthy food.
2． For example, people may lose their hearing if they work in a noisy place for a long time. Too much noise can cause high blood pressure, as well.
Working in strong, changeable light for a long time may cause some kinds of illness. 3． With less pollution, our planet will become greener and our health will be better. Let’s be greener people.
| A．It makes people feel terrible and is especially bad for the eyes. |
| B．It can cause sore eyes and breathing problems. |
| C．Water pollution can make fish dead. |
| D．Noise pollution can make people deaf. |
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
