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1、Chapter32坡印廷定理洛侖茲力等離子體等離子體是電離了的氣體，含有大量帶正電的離子和帶負電的電子，與束縛在原子中的帶負電的電子和帶正電的核不同，等離子體中的電子和離子可以自由運動。而形離開地面80~120km的電離層就是一個等離子體，電離層是由太陽輻射來的紫外光電離高空大氣成的。坡印廷功率流表示什么？表示的物理意義復數(shù)坡印廷功率流復數(shù)坡印廷功率流的物理意義I復數(shù)坡印廷功率流的物理意義IIP141例3-6本章要點P150－151小結(jié)、復習作業(yè)(P152)3.5 3.7 3.9關(guān)系副詞引導的定語從句1.when指時間，在定語從句中作時間狀語。Istillrememberthedayw
2、henIfirstcametothisschool.Thetimewhenwegottogetherfinallyarrived.October1,1949wasthedaywhenthePeople’sRepublicofChinawasfounded.Doyouremembertheyearswhenhelivedinthecountrysidewithhisgrandparents.2.where指地點，在定語從句中作地點狀語。ShanghaiisthecitywhereIwasborn.Ivisitedthefarmwherealotofcowswereraised.Theho
3、usewhereIlivedtenyearsagohasbeenpulleddown.Isthistheplacewheretheyfoughttheenemy?3.why指原因，在定語從句中作原因狀語。Pleasetellmethereasonwhyyoumissedtheplane.Thereasonwhyhewaspunishedisunknowntous.Idon’tknowthereasonwhyhelooksunhappytoday.Kunmingisabeautifulplace______flowersareseenalltheyearround.Kunmingisab
4、eautifulplace______iscalledtheCityofSpring.Kunmingisabeautifulplace______manywritersmentionedintheirbook.注意：關(guān)系副詞引導的定語從句經(jīng)?？梢杂谩敖樵~+關(guān)系代詞”引導的定語從句來表示。when=on(in,at,during…)+which;where=in(at,on…)+which;why=forwhich.如：IwasinBeijingonthedaywhen(=onwhich)hearrived.Theofficewhere(=inwhich)heworksisontheth
5、irdfloor.Thisisthechiefreasonwhy(=forwhich)wedidit.-29-定語從句關(guān)系詞的判斷方法①ThisisthemountainvillagewhereIstayedlastyear.Thisisthemountainvillage(which)Ivisitedlastyear.②I’llneverforgetthedayswhenIworkedtogetherwithyou.I’llneverforgetthedays(which)Ispentwithyou.-30-Thereason__________youexplainedtothete
6、acherisgroundless.Thereason__________hedidn’tshowupwasthathewasstuckinthetrafficjam.2、關(guān)系代詞和關(guān)系副詞的比較1、Doyoustillrememberthechickenfarm_____wevisitedthreemonthsago?A.whereB.whenC.thatD.what2、Thereweredirtymarksonhertrousers______shehadwipedherhands.A.whereB.whichC.whenD.thatShe'llneverforgetherstay
7、there________shefoundhersonwhohadgonemissingtwoyearsbefore.A．thatB．whichC．whereD．when【解析】D 考查定語從句的用法。herstay為先行詞，可以理解為抽象的一段時間(她呆在那里期間)，when指代herstay，在定語從句中作時間狀語。5．TVTurnoffWeek，________millionsofpeoplearoundtheworldparticipa
