PeriodTwoWordpower&GrammarandusagePartⅠLanguageFocusⅠ.单词自测1．reducevt.&vi.减少reductionn．减少，降低2．volunteern．志愿者；vi.&vt.自愿做，义务做voluntaryadj.志愿的；自愿的，主动的3．sniffvi.&vt.(吸着气)嗅，闻4．analysevt.分析5．recognizevt.认识，辨认出；意识到；(正式)承认recognitionn．认识，认出；承认，认可6．puzzlen．谜，疑问；vt.迷惑，使困惑puzzlingadj.令人困惑的puzzledadj.感到困惑的7．ignorevt.忽视；对……不予理会ignorancen．无知，不知情ignorantadj.无知的，不了解的8．polen．地极；柱子，棍，杖9．bootn．靴子10．sweatvi.流汗；n.汗水Ⅱ.短语自测1．insomecases在某些情况下，有时候2．berelatedto和……有联系，和……有关3．leaveout省去，遗漏4．makethemostof充分利用5．ratherthan而不，非6．allofasudden(＝suddenly＝allatonce)突然7．ringout(铃声、枪声等)突然响起，发出响亮的声音8．belinkedto与……相连，与……有关1．reduce[语境感悟](1)(教材P9)Thepossibilitythatpleasantsmellsmightreducepainhasrecentlybeensuggestedbynewresearch.最近新的研究表明令人愉快的气味可能会减少疼痛。(2)Onetraditionalbeliefabouttelevisionisthatitreducesachild’sabilitytothinkandtounderstandtheworld.(2015·广东)对电视的一种传统观念是，它降低了孩子思考和理解世界的能力。(3)Shereducedherweightbyfivekilograms.她把体重减轻了5千克。(4)Yourspeedmustbereducedtothecityspeedassoonasyoucrosstheborder.你一进市区车速就得减到市区的规定速度。[归纳拓展]reducevt.&vi.减少；缩减；降低reduceby减少了百分比reduceto减少到数量[即时跟踪](1)Thepricewillbereducedby20percent.价格将减少20%。(2)—Thecarsgiveoffagreatdealofwastegasintothestreets.—Yes.ButI’msuresomethingmustbedonetoairpollution.(2015·上海洋浦高一检测)A．reduceB．removeC．collectD．increase答案A解析句意为：——汽车将大量废气排到街道上。——是啊。但是我相信，必定要采取某些措施来减少空气污染。reduce减少，降低；remove搬动，移除；collect收集，搜集；increase增加，提高。结合句意可知A项正确。2．volunteer[语境感悟](1)(教材P9)．..，volunteerswererequirednottoeatordrinkforeighthoursbeforetheexperiment.……，志愿者被要求在试验开始前八个小时不吃不喝。(2)Shevolunteeredsomeinformation.她主动提供了一些信息。(3)Twomenvolunteeredtosearchforthemissingclimber.两个人自告奋勇去寻找那位失踪的登山者。(4)Whensheretired，shedidalotofvoluntaryworkfortheRedCross.她退休后为红十字会做了大量的志愿工作。[归纳拓展](1)volunteervt.&vi.自愿做，义务做；n.志愿者volunteersth.自愿提供，自愿给予……volunteertodosth.自愿干某事volunteerfor自愿参加volunteeras/tobe自愿成为……(2)voluntaryadj.志愿的；自愿的，主动的onavoluntarybasis在自愿的基础上[即时跟踪](1)用适当的介词填空①Sheworksthereonavoluntarybasis.②Whydoyouwanttovolunteerforourorganization?(2)Theyvolunteeredtorepairthehousefortheoldlady.他们主动提出为那个老妇人修缮房子。(3)HeasateacherinTibet.A．votedB．volunteeredC．participatedD．reacted答案B解析volunteeras自愿当……，故选B。3．recognize[语境感悟](1)(教材P9)Oneexplanationisthatwomen’ssenseofsmellisbetterdevelopedthanthatofmen，andislinkedtorecognizingthesmellofbabies.一种解释是：女人的嗅觉比男人的嗅觉发育得更好，且与识别婴儿的体味有关。(2)JamesBrindleyisrecognizedasoneoftheleadingearlycanalengineers.(2015·全国Ⅰ)詹姆斯布林德利被公认为是领先的早期运河工程师之一。(3)Werecognizedthatglobalwarmingshouldbeminimizedbyourjointefforts.我们认识到，全球变暖应当基于我们共同的努力来缓解。[归纳拓展]recognizevt.认识，辨认出；意识到；正式承认recognize...as/tobe...认为……是……recognizethat...shoulddosth...
