相关试卷
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1、nbsp;为了丰富学生地词汇量，我别无选择，只能定期进行听写。
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2、 地震造成地破坏时如此严重以至于很多人无家可归。
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3、nbsp;解决这个问题地最好方式就是我们合作。
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4、 Although it has been centuries Jia Sixie died, Qi Min Yao Shu is still considered essential book in China's agricultural history.
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5、Then he gave advice ploughing, suggesting that the autumn ploughing should be at a (great) depth than the spring ploughing. He also suggested (change) crops to get better harvests every year.
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6、 Therefore, there is still a long way to find a suitable (solve) that puts sufficient food on the dinner table, while keeping people and the environment as (health) as possible.
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7、 What keeps them doing so is the fact chemical farming serves the high demand food around the world.
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8、 different crops are grown is because they put important minerals back into the ground, (make) it ready for the next batch of crops.
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9、 Organic farmers focus on (keep) their soil rich and free of disease through (nature) means.
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10、 As for chemical fertilisers, crops (grow) with them usually grow too fast to be rich nutrition.
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11、 In fact, some pesticides like DDT have (prohibit) in most countries because of the damage they cause people and the environment.
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12、 Over time, however, some scientists have found is that their long-term use can sometimes harm both the land people's health.
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13、 When they were first introduced, many farmers welcomed them as a great way (fight) crop disease and increase (produce).
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14、 What other important (方面) of agriculture do you want to know about?
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15、 In his travels, he observed that some farmers had much better o than others, so he decided to investigate the best way of (获得) good harvests.
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16、 Some people would prefer to stop the use of man-made chemicals in agriculture (完全地).
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17、 Peanuts grow on the ground's surface, but many other vegetables put down deep r.
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18、 Organic farmers also plant diverse crops that use different (深度) of soil to help keep it rich.
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19、 For i, they may grow corn or wheat in a field one year, and then grow beans there the next.
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20、 As an (选择), some farmers have switched to organic farming, and many customers have turned to organic food when they shop at the local (杂货店).