3．The Israeli farmers who pioneered the revolutionary technology known as drip irrigation weren't trying to solve one of the world's most urgent problems．They were just trying to survive．They lived in the desert，and they didn't have enough water to grow their crops．
In its simplest form，it was little more than a pipe with holes in it．But behind each hole was a hi-tech dripper that let out just the fight amount of water．Snaked along a row of crops so that the holes were positioned directly above the roots，the pipe could direct each precious drop of water directly to the plants，getting a bigger harvest while using a very small amount of the water．
Over time，the farmers improved upon the technology，perfecting the drippers that regulated the flow of water，and connecting the pipelines to computers that could determine exactly how much water each plant needed and when．
If the global population kept growing，the rest of the world would increasingly resemble their little community in the desert．So they began selling their irrigation systems in other parts of the world，eventually expanding to more than 110countries．Netafirm，the company says it's lifting people out of poverty and conserving water at a time when the importance of doing so has never been clearer．
The mass adoption of drip irrigation won't save the world by itself．To avoid the coming catastrophe，nearly everybody will，in some way，have to do more with less，perhaps through accepting and using other new technologies．Otherwise，it's going to get ugly．
32．Why is drip irrigation called"the revolutionary technology"？C
A．It saves the world all by itself．
B．It is controlled by computers．
C．It makes irrigation more effective．
D．It provides deserts with water．
33．What does"one of the world's most urgent problems"in Paragraph l refer to？A
A．Lacking water． B．Lacking labor．
C．Lacking food． D．Lacking energy．
34．How does the drip irrigation help farmers with crops？B
A．By drilling holes on the pipes．
B．By regulating water via drippers．
C．By snaking pipes along the crops．
D．By placing pipes just above roots．
35．Which of the following will be the best slogan for Netafirm to sell the irrigation systems？A
A．Less water；More harvest．
B．New technology；New world．
C．More grain；Less starvation．
D．Water saving；World surviving．
分析 本文屬于議論文閱讀，作者通過這篇文章向我們介紹了以色列人們因為缺水而發(fā)明了一種"革命技術(shù)"--滴灌，他們用更少的水得到了更多的收獲，因此這種技術(shù)造福了世界上所有缺水的地區(qū)，能節(jié)省很多的灌溉用水．
解答 32．C 細節(jié)理解題，根據(jù)第二段the pipe could direct each precious drop of water directly to the plants，getting a bigger harvest while using a very small amount of the water．可知滴灌用極少量的水得到更大的收獲，使灌溉更有效，因此被稱為"革命技術(shù)"，故選C．
33．A 推理判斷題，根據(jù)第一段They were just trying to survive．They lived in the desert，and they didn't have enough water to grow their crops．可知他們生活在沙漠中，沒有足夠的水灌溉莊稼，因此這個問題是缺水，故選A．
34．B 細節(jié)理解題，根據(jù)第三段Over time，the farmers improved upon the technology，perfecting the drippers that regulated the flow of water，and connecting the pipelines to computers that could determine exactly how much water each plant needed and when．可知滴灌可以通過調(diào)節(jié)水的流量來幫助農(nóng)民種植莊稼，故選B．
35．A 推理判斷題，根據(jù)第二段getting a bigger harvest while using a very small amount of the water．可知滴灌可以用更少的水獲得更大的收獲，故選A．
點評 考查學生的細節(jié)理解和推理判斷能力．做細節(jié)理解題時一定要找到文章中的原句，和題干進行比較，再做出正確選擇．在做推理判斷題時不要以個人的主觀想象代替文章的事實，要根據(jù)文章事實進行合乎邏輯的推理判斷．
