六级练习2013.11.16
[audio]http://sound.yywz123.com/tingbbs/cet6/cet620131116.mp3[/audio]It has been proved that Low Till Farming increases harvests and reduces water use, and (1)______________________because there are fewer unwanted plants. Scientists say Low Till Farming is becoming popular in South Asia, (2)___________________. They say the area will become depended on imported food unless water is saved through methods like Low Till Farming. Currently, more than 150 million people in South Asia depend on local rice and wheat crops. Farmers grow rice during wet weather. (3)___________________________. Farmers are using the Low Till method to plant wheat after harvesting rice. Scientists say Low Till Agriculture is one of the best examples in the worlds of technologies working for both people, and the environment.
**** Hidden Message ***** this method reduced the need for chemical products
which is facing a severe water shortage
during the dry season they grow wheat in the same field this method reducing the need for chemical products
页:
[1]