植物的重要性或作用 英语作文

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匿名用户
2013-03-29
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Trees help to stop the wind.When there are no trees, the wind blows more strongly over the land. Strong winds can hurt the piants. they can aslo blew away the soil.Heavy rain can aiso carry away the soil. Trees help stop this. When there are no trees, the heavy rain carries a lot of soil into the river.When this happens,the rivers become full ,the land becomes poorer and it becomes harder to grow things.树可以停止风。当没有树的时候,风会吹的更加猛烈。猛烈的风可以伤害植物,也可以吹走泥土。暴雨也可以带走泥土。树可以帮助阻止。当没有树的时候,暴雨会带走很多的泥土到河里面。当发生这种情况,河理会充满泥土,土地会变贫瘠,种东西变的越来越困难。
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Trees help to stop the wind.When there are no trees, the wind blows more strongly over the land. Strong winds can hurt the piants. they can aslo blew away the soil.Heavy rain can aiso carry away the soil. Trees help stop this. When there are no trees, the heavy rain carries a lot of soil into the river.When this happens,the rivers become full ,the land becomes poorer and it becomes harder to grow things汉语是树可以停止风。当没有树的时候,风会吹的更加猛烈。猛烈的风可以伤害植物,也可以吹走泥土。暴雨也可以带走泥土。树可以帮助阻止。当没有树的时候,暴雨会带走很多的泥土到河里面。当发生这种情况,河理会充满泥土,土地会变贫瘠,种东西变的越来越困难。,ok
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Plants are essential to the balance of
nature and in people's lives. Green plants, i.e., those possessing
chlorophyll, manufacture their own food and give off oxygen in the
process called photosynthesis, in which water and carbon dioxide are
combined by the energy of light. Plants are the ultimate source of food
and metabolic energy for nearly all animals, which cannot manufacture
their own food. Besides foods (e.g., grains, fruits, and vegetables),
plant products vital to humans include wood and wood products, fibers,
drugs, oils, latex, pigments, and resins. Coal and petroleum are fossil
substances of plant origin. Thus plants provide people not only
sustenance but shelter, clothing, medicines, fuels, and the raw
materials from which innumerable other products are made.

Plants
are the backbone of all life on Earth and an essential resource for
human well-being. Just think about how your everyday life depends on
plants.
Food: Everything we eat comes directly or indirectly from
plants. Throughout human history, approximately 7,000 different plant
species have been used as food by people.
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2014-03-25
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Trees help to stop the wind.When there are no trees, the wind blows more strongly over the land. Strong winds can hurt the piants. they can aslo blew away the soil.Heavy rain can aiso carry away the soil. Trees help stop this. When there are no trees, the heavy rain carries a lot of soil into the river.When this happens,the rivers become full ,the land becomes poorer and it becomes harder to grow things
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