陜西 孫竹芳

中國西南地區(qū)云南省的有機(jī)農(nóng)業(yè)試驗(yàn)田自2017 年開展有機(jī)種植項(xiàng)目以來，土壤有機(jī)質(zhì)有所增加，部分重金屬含量有所降低。

主題語境：農(nóng)業(yè)與科技 篇幅：313詞 建議用時(shí)：6分鐘

1Efforts to grow organic vegetables that bring much less damage to the farmland paid off as Yunnan Province in Southwest China has been trying to deliver its promise to better protect its natural resources.

2In the trial field under the management of Yunling Organic Agriculture Development Co., Ltd., the organic matter in soil has been improved whereas the content of some heavy metals has been reduced ever since the organic planting project started in 2017.The green fertilizer(肥料)they use has left close to little pollution in the soil, which is of critical significance as the field that covers240hectares of land is located right in the middle of Kunming Songhuaba Reservoir Nature Reserve.

3“Our fertilizer is the result of the fermented (發(fā) 酵) mixture of livestock waste and crop straws,”said Zhang Jian,deputy general manager（副總經(jīng)理）of Yunling Organic Agriculture Development Co., Ltd.“After several years of trial planting, it is proved that the development of organic agriculture in sensitive water source areas plays a positive role in soil improvement and ecological restoration.”

4Now,more than 50 tons of vegetables of more than 20 varieties from the field are sent to places across China every day.Although the price is three to five times higher than that of ordinary vegetables,they are popular in the middle and high-end retail markets in East, Central and South China.In Tonghai County, one of the main producing areas,organic vegetables have begun to enter the Southeast Asian market.

5At present,Yunnan produces 32 million tons of vegetables per year.With the promotion of organic farming,the vegetable industry is facing a major transformation.

6“A revolutionary change should be made to the traditional growing mode or cultivation technology. If the zero emission of chemical residues（殘留物）is realized, our problems of environmental pollution will be solved,”said He Jiangming, a researcher at the Institute of Horticulture,Yunnan Academy of Agricultural Sciences.

Reading Check

Ⅰ.Choose the best answers according to the text.

Ⅱ.Discussion

What's the meaning of organic farming?Can you give some examples?

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Language Study

Ⅰ.Discover useful structures in the text

1.which引導(dǎo)非限制性定語從句

The green fertilizer they use has left close to little pollution in the soil, which is of critical significance as the field that covers 240 hectares of land is located right in the middle of Kunming Songhuaba Reservoir Nature Reserve.他們使用的綠色肥料對(duì)土壤幾乎沒有污染，這具有至關(guān)重要的意義，因?yàn)檎嫉?40 公頃的田地位于昆明松花壩水庫保護(hù)區(qū)的中部。

2.although引導(dǎo)讓步狀語從句

Although the price is three to five times higher than that of ordinary vegetables, they are popular in the middle and high-end retail markets in East,Central and South China.雖然（這種有機(jī)蔬菜的）價(jià)格是普通蔬菜的三到五倍，但這種蔬菜在華東、華中、華南地區(qū)的中高端零售市場頗受歡迎。

Ⅱ.Text-centered chunks

pay off 還清；償清；成功

deliver a promise 兌現(xiàn)承諾

ever since自從

play a role in 在……中起一定的作用；在……中扮演角色

at present目前；現(xiàn)在；眼下