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每周一聽——那些年我們一起練過的聽力(第20期) 已有26人參與
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外語學(xué)習資料集 | 風之聲-每周一聽 |

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感謝大家的支持,上期活動鏈接:http://www.gaoyang168.com/bbs/viewthread.php?tid=4704294&fpage=1 詞匯講解: 1. involve vt. 使卷入,連累;牽涉 例句:That's no concern of mine. I'm not involved. 那與我無關(guān),我未卷入。 2. pesticide n. 殺蟲劑 例句:They sprinkled pesticide to bug the potatoes. 他們噴撒殺蟲劑給馬鈴薯除蟲。 3. complex adj. 復(fù)雜的,錯綜復(fù)雜的 例句:It was a complex problem. 這是一個復(fù)雜的問題。 4. fertilizer n. 肥料 例句:This factory turns out chemical fertilizer. 這家工廠生產(chǎn)化肥。 5. afford vt. 提供 例句:We can't afford to pay such a price. 我們付不起這個價錢。 6. cooperative adj. 合作的;樂意合作的 例句:The people in the village were very cooperative. 村里人非常合作。 7. fee vt. 付費(或小帳)給 例句:She feed the waiter. 她付給侍者小費。 8. service n. 為...服務(wù) 例句:He dedicated his life to the service of his country. 他獻身于為國服務(wù) 短語講解: 1. Precision agriculture is a way of thinking about how to improveproduction and get more from existing resources. think about 考慮 例句:He never think what others think about him. 他從來考慮別人對他的看法。 2. Jimmy Messick is a farmer in northern Virginia, not far fromWashington. far from 完全不 例句:It's far from perfect. 那還遠遠算不上完善。 3. He says the GPS guidance system makes it easy to come backlater and plant the seed in his fields of maize, or corn. come back 回來 例句:It doesn't matter when you'll come back. 你什么時候回來都沒關(guān)系。 4. Of course, new technology is not always so cheap. of course 當然 例句:Of course, this can be abused. 當然了,這樣還是可能會被濫用。 5. He and other researchers worked with a farmer in India toprecision-level his irrigated wheat fields. work with 與…共事/合作;起作用 例句:Continue to work with the faith that honor in suffering is redemptive. 堅持以受苦為榮的信念來工作是一種贖罪。 Precision agriculture is a way of thinking about how to improve production and get more from existing resources. It often involves the use of technology. An example found mostly in wealthier countries is a computer-guided tractor. The computer does most of the driving. It uses signals from satellites in the Global Positioning System. GPS technology helps the tractor cut rows in straight lines and put the right amount of fertilizer in the right place. 精準農(nóng)業(yè)是一種想辦法增產(chǎn)、從現(xiàn)有資源中獲取更多的方法。通常要利用科技,富有國家最常見的例子就是使用電腦操作的拖拉機。電腦負責大部分的駕駛工作,借助全球定位系統(tǒng)(GPS)的衛(wèi)生信號,GPS科技幫助拖拉機沿直線劃出壟溝,在正確的位置放入適量的肥料。 (SOUND) Jimmy Messick is a farmer in northern Virginia, not far from Washington. He says the GPS guidance system makes it easy to come back later and plant the seed in his fields of maize, or corn. Jimmy Messick是距華盛頓不遠處北維吉尼亞州的一位農(nóng)民,他說GPS使得種玉米變得更容易。 JIMMY MESSICK: "Because the tractor that's pulling the planter also has the same auto-guidance system in it as the tractor that applied the fertilizer and did this tillage, it will come back and put the seed right on top of these marks." JIMMY MESSICK: “牽引播種機的拖拉機有同步自動導(dǎo)航系統(tǒng),當拖拉機耕作并施肥后,它能再次返回將種子剛好播撒到特定標記處! Because of the GPS guidance, Mr. Messick now pays half what he once did for fertilizer. 由于有了GPS系統(tǒng),Messick現(xiàn)在只需耗費原來肥料的一半。 Bruce Erickson is an agronomist at Purdue University in Indiana. He says saving even a little bit of seed, pesticide or fertilizer "computes directly to cost savings and less environmental damage." Bruce Erickson是印第安納州普渡大學(xué)的農(nóng)學(xué)家,他說即使只是節(jié)省了一點種子、殺蟲劑或化肥,“也能直接計算出節(jié)省的成本,減少對環(huán)境的危害! Raj Khosla is an agronomist at Colorado State University. He says farmers in the developing world can use precision agriculture even without high-tech tractors. Raj Khosla是科羅拉多州立大學(xué)的農(nóng)學(xué)家,他說,發(fā)展中國家的農(nóng)民甚至無需高科技拖拉機就可以進行精準農(nóng)業(yè)生產(chǎn)。 RAJ KHOSLA: "We do not necessarily have to have complex, large machinery to practice what could be done as [simply] as using bottle caps." Raj Khosla:“我們不一定非要有復(fù)雜、大型的機器,其實瓶蓋就可以了! The idea is to use a bottle cap to pour a measured amount of fertilizer right next to each plant. It takes more work than simply throwing handfuls of fertilizer across a field. 這個辦法是用瓶蓋把定量化肥播撒在每棵植株旁,這比只是將化肥灑在整塊田間要耗費更多勞動。 But Mr. Khosla says researchers taught this bottle cap method to farmers in sub-Saharan Africa. They discovered that it was worth the extra effort if they could only afford a small amount of fertilizer. 但Raj Khosla說,研究者把這一方法教給了撒哈拉沙漠以南非洲的農(nóng)民,他們發(fā)現(xiàn)這種額外的付出是值得的,因為這樣就只需用少量化肥即可。 RAJ KHOSLA: "There was a huge difference: more than double, in terms of productivity." RAJ KHOSLA: “這個差異很大,生產(chǎn)率提高了兩倍。” Of course, new technology is not always so cheap. But Mr. Khosla says farmers could form a cooperative or combine their resources to pay for new equipment. He and other researchers worked with a farmer in India to precision-level his irrigated wheat fields. That kept the fields from developing wet and dry areas that reduced productivity. The farmer also added better fertilizers and insect control. 當然,新科技并不都是這么廉價。但Khosla說,農(nóng)民可以組建合作社,或?qū)①Y源合在一起來購買新設(shè)備。他和其他研究者同一位印度農(nóng)民合作提高灌溉麥田的精準度。這樣可放置農(nóng)田過濕或過干而降低生產(chǎn)率。農(nóng)業(yè)還用了較好的肥料,并做了蟲害控制。 As a result, he was able to grow almost three times as much wheat on the same amount of land. Mr. Khosla says with the extra money the farmer made, and a small loan, he bought his own precision leveler. And now, for a fee, he offers that as a service to his neighbors and other farmers. 結(jié)果,他在同樣面積的田地里收獲了近三倍的麥子。Khosla說,這位農(nóng)民用額外掙來的錢,加上一點貸款,就買了一臺自己的精準整平機,F(xiàn)在,他向鄰居和其他農(nóng)民收費提供整平機服務(wù)。[ Last edited by etin on 2012-7-14 at 10:29 ] |

禁蟲 (文壇精英)
小盼妞


禁蟲 (文壇精英)
小盼妞

鐵桿木蟲 (知名作家)
美食顧問小橙



禁蟲 (文壇精英)
小盼妞


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