NewConceptEnglishLesson88-89课件
日期：2012-03-05 19:17
【Newwordsandexpressions】trapv陷入，表面explosiven炸药vibrationn震动[vai5breiFEn]collapsev坍塌[kE5lAps]drillv钻孔/n练习，操练capsulen容器layern层beneathprep在之下lowerv放下，降低progress[prEJ5^res]v进展，使陷于困境surfacen地面，进行smoothlyadv顺利地【Newwordsandexpressions】Whyistherescuetakingsolong?Becauseitisdifficulttodrillaholethroughahardlayerofrock1Howmanymenhavebeentrappedinamineandforhowlong?2Whyarerescueoperationsprovingdifficult?3Whywasamicrophoneloweredintothemine?4Whyarethesixmencheerfuleventhoughtheyarerunningoutoffoodanddrink?1Howmanymenhavebeentrappedinamineandforhowlong?2Whyarerescueoperationsprovingdifficult?SixmenhavebeentrappedinamineforseventeenhoursBecauseexplosivescannotbeusedandbecausethereisahardlayerofrockbeneaththesoilwhichmakesdrillingdifficult3Whywasamicrophoneloweredintothemine?4Whyarethesixmencheerfuleventhoughtheyarerunningoutoffoodanddrink?Becausethise，
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