1.experiencevt.经历Ourcountryhasexperiencedgreatchangesinthepastthirtyyears.n.经验，体验(不可数)经历，经历过的事(可数)PleasetellusofyourexperienceswhileinAfrica.Shehasnoexperienceincooking.experiencedadj.有经验的Mr.Liisquiteanexperiencedteacher.haveexperiencein/at…beexperiencedin/at…龙卷风是空中的雷暴延伸到地面产生的旋转的气柱。最强烈的风力每小时超过400公里。几乎所有的龙卷风都发生在美国,从东南部的德克萨斯州直到北部的南达科他州。龙卷风能卷起汽车、火车甚至是房子，把它们卷到旁边的街道——甚至能卷到邻近的城镇。它们能扯下猫背上的皮毛，拔掉鸡的羽毛。它们能毁掉房子，却把室内的家具留在原地。美国平均每年发生800次龙卷风，造成大约80人死亡、1,500人受伤。最恶劣的一场龙卷风发生在1925年，波及到了美国的三个州：密苏里州、伊利诺斯州和印第安纳州。等到风停时，已有700多人死亡，2,700多人受伤。2.rotatevi.vt.旋转；自转→rotatingadj.Theearthrotatesonceaday.Theearthrotatesroundthesun.3.violentadj.猛烈的，强烈的aviolentattack猛烈的进攻AviolentearthquakestruckTangshanin1976.Theyhadaviolentquarrel.→violencen.猛烈，激烈，暴力4.nearly,almost几乎当表示“接近”或“就要到了”时最好用nearly。当想表达“不足”或“差一点儿”时最好用almost。He'sonlyforty-oneyearsold,andhehasalreadybeentonearlyeverycountryintheworld.Ialmostfelldown.我差一点儿没跌倒。注：句中有no,none,nothing,never等词时，不可以用nearly，但可以用almost。5.occurv.发生(occurred/occurring)Theaccidentoccurredatfiveo’clock.SthoccurstosbItoccurstosbthat…想起1.Abrilliantideaoccurredtome.2.ItsuddenlyoccurredtoherthatTomwasafraidofbeingalone.happen,occur,takeplace1.happen“偶然或未能预见地发生”~to1.Theaccidenthappenedyesterday.2.Someoneinthestreethappenedtoknowher.2.occur正式用语,所指的时间和事件都比较确定,在以具体事物、事件作主语时,可与happen互换Theseeventsoccurredin1909.3.takeplace“事先计划或预想到的事发生”Themeetingtookplaceat8:00asplanned.6.pickup1.捡起：拿起Zhangliangpickeduptheshoesfortheoldmanagain.2.承载（客人，货物等），开车接…Thebusstoppedtopickupthepassengers.3.（无意中、偶然）学得（知识，技巧）HepickedupFrenchveryquicklywhenhewastravelinginFrance.4.接听,收听MyradiocanpickupBBCEnglishandVOAeasily.5.有所起色、好转、改善We’rewaitinguntiltheweatherpicksupabit.Undergoodtreatment,Lindaisbeginningtopickupandwillsoonrecover.7.putdown1.写下；记下Putdownyounameandaddress.2.放下Putthoseheavybagsdownforaminute.8.takeoff1.脱掉2.起飞3.去掉,除去;4.打折①Parentsareadvisedtotakepressureoffachildandgivehimsomeencouragementbeforeanexam.②Theyaretaking50%offallgoodsinthatshop.③Theplanetookoffverysmoothlythoughtherewasaterriblestorm.④WheninJapan,youhavetotakeyourshoesoffbeforeyouenterpeople’shouses.9.…leavethefurnitureinsideexactlywhereitwas.leavevt.让(继续处于某种状态),可以接形容词、副词、分词、介词短语等作补语①Leavethebookonthedesk.②Leavethedooropen.③Leavemealone.④Don’tleavehimwaitingoutsideintherain.⑤I’msorryIhaveleftsomeofyourquestionsunanswered.Youshouldmakeitaruletoleavethings___youcanfindthemagain.A.whenB.whereC.thenD.which10.averageadj.平均的,通常的1.Theaverageageofthestudentsis18.2.Thecarwassoldatanaveragepriceof$10,000.vt.平均；求平均值Ifyouaverage7,14and6,youget9.on(an)average平均起来,一般说来Onaverage,womenlivelongerthanmenbutmenearnmorethanwomen.11.affect,effect,influence影响1.affectvt.对...产生不利影响Smokingaffectshealth.2.effectn.haveaneffectonThedrughadanimmediateeffectonthepain.3.influencen.vt.指“对行动、思想、性格等产生...
