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1、Unit2ResistorandCapacitorFixedresistorVariableresistorResistorCapacitorCeramiccapacitorvocabularyResistvt.反抗；抵抗Resistorn.电阻器Resistancen.阻力Capacityn.容量Capacitorn.电容器Capacitancen.电容PhrasesBeclassifiedas把……归类为Nameafter以……命名Capableof可以……的Play…rolein在……起作用Thesebooksareclassifiedasscien
2、tificbooks.Thebuildingisnamedafterafamousman.Areyoucapableoffinishingthisbyyourself.Theyplayedanimportantroleinbuildingthisroad.Resistor:Aresistorisatwo-terminalelectricalorelectroniccomponentthatresistsanelectriccurrent.Resistance:Theoppositiontotheflowofcurrentiscalledre
3、sistance.Ohm’sLaw:R=V/ICurrentflowingisdirectlyproportionaltothevoltageandinverselyproportionaltotheresistance.电流与电压成正比，与电阻成反比Capacitor:Thedevicecapableofstoringelectricalenergyinanelectricfieldiscalledacapacitor.Capacitance:Theabilityofacapacitortostoreelectricalenergyistermedcapacit
4、ance.AbbreviationEnglishMeaningChineseMeaningIcurrent电流Rresistance电阻KΩkilohm千欧Pico-farad10-12farad微微法Vvoltage电压comprehensionWrittenworkStoreelectricalenergyBerepresentedbyMakeadiscoveryTheunitofcapacitanceElectricalcomponent存储电能用……代表发现电容单位电路器件欧姆定律与……成正比在实际应用中电容器能……的Ohm’slawBedirectlyp
5、roportionaltoForpracticalpurposeAcapacitororacondenserBecapableofTranslation:1.Acapacitorconsistsoftwoconductorsseparatedbyaninsulatingmedium.Andtheabilityofacapacitortostoreelectricalenergyistermedcapacitance.电容器由两个被绝缘介质隔开的导体组成。电容器存储电能的能力叫做电容。2.Theoppositiontothefollowofcurrentiscall
6、edresistanceandisrepresentedbythelettersymbolR.对电流的阻力叫电阻，用字母符号R表示。3.Capacitorsandresistorsplayanimportantroleinmodernelectronics.电容器和电阻在当今电子学中起着重要作用。4.However,faradissolargeaunitthatweusuallyusemicrofaradandmicro-microfaradorpicofaradforpracticalpurpose.然而法拉这个单位太大了，所以在世纪应用中，我们通常使用微法或者
7、微微法。构词法1.前缀(1)表示否定意义的前缀：a.纯否定前缀：un-:unable,unhappy,unfair,unusual,uncertaindis-:dislike,disagree,disadvantage,dishonest,disobeyin-:incapable,incorrect,inconvenient,im-:impossible,immoral,il-:illegal,illogicalir-:irregular,irrelativenon-:non-smoker,non-stop,non-violentb.表示错误的意义：mis-:mi
8、stake
