閱讀理解訓(xùn)練題十四-資料下載頁(yè)
2024-11-11 04:32本頁(yè)面
【導(dǎo)讀】towrongways.
【正文】 ould move to another place. The tired land then slowly recovered. Gradually grasses and other plants would appear on it and its productive power would slowly return to normal through their decay. But nature, left alone, would take a long time to bring back the land to its former state。 the length of time required would depend on local conditions, but it might well be ten years. It is a bad practice to grow the same crop in a field year after year. If the crop is changed, the land will suffer less because it is treated and used in a different way. Different plants have different effects on the soil. Therefore, a change of crop will do less harm than the growing of the same crop year after year and a regular change to grass will do good to the soil. Much will therefore be gained if different crops are grown one after another, a method known as the rotation(輪作 ) of crops. 72. According to the passage, the land will bee poorer A. if all the dead leaves are cleared away B. if the humus is increased after the harvest C. if dead leaves decay in the soil by themselves D. if waste plant material lying about is buried 73. We can learn from the passage that the tired land has gradually recovered A. when grasses and other plants appear again B. when the treatment is given by nature alone C. after new grasses and other plants have decayed again 4 D. after nature has been left alone for several months 74. A modern farmer can hardly move to another place as he did before because A. the productive power of a new field isn39。t higher than that of an old one B. there are few free fields left for him to do farming C. it takes a farmer more than ten years to start farming in a new field D. there will be too many grasses in a new field to grow crops 75. It is most likely that the author will go on to ______ in the paragraph following the passage above. A. introduce other methods of planting crops B. deal with how to prevent land getting tired C. start another topic of how to make use of land D. further explain what the rotation of crops is 5 閱讀理解訓(xùn)練題 （十四）答案 5660DCBAC 6165AACBA 6670CCBCB 7175DACBD
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