高考英语一轮复习 专项提能计划 阅读理解（三）课件 外研版.ppt

专项提能计划 阅读理解 三 科普类 2011 高考陕西卷 d eversincetheywerefirstputonthemarketintheearly1990s geneticallymodified gm 转基因 foodshavebeenincreasinglydevelopedandmarketedinmanycountriesintheworld mainlyonthe basisoftheirpromisetoendtheworldwidefoodcrisis butcangmtechnologysolveworldhungerproblems evenifitwould isitthebestsolution despitewhatitpromises gmtechnologyactuallyhasnotincreasedtheproductionpotential 潜力 ofanycrop infact studiesshowthatthemostwidelygrowngmcrop gmsoybeans hassufferedreducedproductivity forinstance areport thatanalysednearlytwodecadesofresearchonmajorgmfoodcropsshowsthatgmengineeringhasfailedtosignificantlyincreaseuscropproduction somethingelse however hasbeenontherise whilegmseedsareexpensive gmcompaniestellfarmersthattheywillmakegoodprofitsbysavingmoneyonpesticides 杀虫剂 onthecontrary usgovernmentdatashowthatgmcrops intheushaveproducedanoverallincreaseinpesticideusecomparedtotraditionalcrops thepromisewasthatyoucoulduselesschemicalsandboostproduction butneitheristrue saidbillchristison presidentoftheusnationalfamilyfarmcoalition atthesametime theauthorsofthebookworldhunger twelvemythsarguethatthereactuallyismorethanenoughfoodintheworldandthatthehungercrisisisnotcausedbyproduction butbyproblemsinfooddistributionandpolitics theseindeed deserveoureffortsandmoney meanwhile theriseinfoodpricesresultsfromtheincreaseduseofcropsforfuelratherthanfood accordingtoa2008worldbankreport asamatteroffact scientistsseebetterwaystofeedtheworld anotherworldbankreportconcludedthatgmcropshavelittletooffertothechallengesofworldwidepovertyandhunger becausebetterwaysoutareavailable amongwhich green farmingissupposedtobethefirstchoice 57 theauthordevelopsthesecondparagraphmainly a byclassificationb bycomparisonc byexampled byprocess 58 whatdoestheunderlinedword boost inthethirdparagraphprobablymean a control b evaluate c obtain d increase 59 gmcompaniespromisefarmersthattheywillbenefitfrom a practising green farmingb useoflesschemicalsc fairdistributionoftheircropsd usingmorecropsforfuel 60 whichofthefollowingbestdescribestheattitudeoftheauthortowardsgmtechnology a optimistic b defensive c disapproving d casual 答案速查57 c58 d59 b60 c 破题思路本文对转基因食品展开了论述 转基因食品曾经被认为能够解决世界粮食危机 但现在看来 转基因食品非但没有解决预期的问题 却带来了诸多的问题 引发了更多的争议 那么解决世界粮食问题的出路在哪里呢 疑难剖析anotherworldbankreportconcludedthatgmcropshavelittletooffertothechallengesofworldwidepovertyandhunger becausebetterwaysoutareavailable amongwhich green farmingissupposedtobethefirstchoice paragraph5 该句为复合句 结构较为复杂 首先主句中使用了that引导的宾语从句 从句是一个because引导的原因状语从句 在原因状语从句中又使用了 介词among which 引导的定语从句 句意 另一个世界银行的报告得出结 论认为转基因作物对于解决世界范围的贫穷和饥饿没有多大的帮助 因为还有更好的方法 其中绿色农业被认为是第一选择 名师支招了解文章结构 熟悉文章体裁