【问题】 Drinkingcoffeecouldactivatethebody'sfat-fightingdefenses,whichisa(1)______(discover)thatcouldhaveapotentialeffectinthebattleagainstobesityanddiabetes.Inastudy,researcherssaidthatcoffeemayhelpstimulateourbrownfatreserves,(2)______playsakeyroleinhowquicklyw
Drinkingcoffeecouldactivatethebody'sfat-fightingdefenses,whichisa(1)______(discover)thatcouldhaveapotentialeffectinthebattleagainstobesityanddiabetes.Inastudy,researcherssaidthatcoffeemayhelpstimulateourbrownfatreserves,(2)______playsakeyroleinhowquicklywecanburncalories. Therearetwoformsoffatcells,browncellsandwhitecells,andeach(3)______(play)adifferentroleinourbody.Whilebrowncellshelpgenerateheat,whitecellstakeresponsibility(4)______thestorageoffatorenergy. "Brownfatworks(5)______(different)fromotherfatinyourbodyandproducesheatby(6)______(burn)sugarandfat,ofteninresponsetocold,"saidProfessorMichaelSymonds."Increasing(7)______(it)activityimprovesbloodsugarcontrol,andtheextracaloriesburnthelpwithweightloss.However,untilnow,noonehasfoundan(8)______(accept)waytostimulateitsactivityinhumans." "Wearenowtryingtofindout(9)______there'sanothercomponenthelpingwiththeactivationofbrownfat,besidescaffeine."Symondssaid,"Oncewehaveconfirmedwhichcomponentisresponsibleforthis,itcouldpotentiallybeusedaspartofaweight-managementmethodorregulationprogram(10)______(help)preventdiabetes."
正确答案:(1)discovery.考查名词。句意:喝咖啡可以激活人体对抗脂肪的防御系统,这一发现可能对对抗肥胖和糖尿病有潜在作用。分析句子可知,该空作表语,且前有不定冠词a,故用名词作表语,故填discovery.
(2)which.考查定语从句。句意:在一项研究中,研究人员说,咖啡可能有助于刺激我们的棕色脂肪储备,这对我们燃烧卡路里的速度起着关键作用。分析句子可知,(2)plays a key role in how quickly 
题目解析:
本文为说明文,主要讲述喝咖啡可以激活人体对抗脂肪的防御系统,可能对对抗肥胖和糖尿病有潜在作用。
点评:
本题主要考查名词、定语从句、主谓一致、介词、副词、动名词、形容词性物主代词、形容词、宾语从句、动词不定式等,需要考生在理解短文的基础上,灵活运用所学的基础知识,填写出正确的单词形式。