高三英语学案Unit8

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1、Unit81.drownv.淹死，淹没1)Hedrownedhimselflastnight.2)Cheersdrownedhisvoice・drownoneself投水自杀drownsb./sth.insth.把。。。。。。浸在。。。。。。里drownoneselfindevoteoneselftowork埋头T作>buryoneselfinloseoneselfinaman一个溺水的人aman一个淹死的人2.aidn.&vt.帮助/援助1)Shecametomyaid.2)WeshouldgivesomeeconomicaidtotheThirdWorld・3)Iaidedher

2、tocontinueherstudy・=Iaidedherincontinuingherstudy.4)Youradviceaidedhertosucceed・inaidof为了。。。。。。aidsomebodytodosth.帮助某人做某事二helpsb.todosth.firstaid急救hearingaid助听器aidsb.in/with为某事帮助某人=helpsbwithwiththeaidofsb./withsb/said=withthehelpofsb./withsb/shelp（aid是较正式的用法，help则含义较广。儿乎所有用aid的地方都可用help代替。但表“救

3、护”时，用aid不用help.）1.Makesurethatelectricwiresaresafeandthatchildrenreachthem・makesurethat…・+一般现在时=ensurethatmakesureofsth.确保，确定Makesurethatallthelights(turn)offbeforeyouleavethelab.Makesurethetimeandplaceofthemeeting.besuretodosth一定会做。。。Jthat....确fyooobesureofdoingsth确信做。。。.about(否)/ofsth对。。。有把握1

4、)Hesaidhewasnotsuregrammarandidioms.2)Maryissure(come)thisafternoon.马丽今天下午肯定会来。3)Heissure(pass)theexam.他确信考试会及格。4)Quiteafewpeopleusedtobelievethatdisasterifamirrorwasbroken.()A・wassureofstrikingB.wassureofhavingstruckC.wassuretobestruckD.wassuretostrike4・Ifapanofoilcatchesfire,turnoffthegasandc

5、overthepanquickly・catchfire着火强调动作，不与段时连用。beonfire着火表状态，可与段时连用。Don?tthrowthecigaretteabout.Thedrygrassfireeasily.Hishousefireforanhour.setfiretosth./setsth.onfire放火烧playwithfiremakeafirelightafireputoutafire（turnoffvt.关掉（煤气，自来水，电灯，电视等）・-turnon（反义词）turnagainst背叛turnin=handinturninto=changeinto]tu

6、rnover把。。。。。。翻过来/翻身/打翻turnup开大（音量）/出现，鉛面turndown调小（音量：）/拒绝turnright=turntotherightturnawayfrom离开，避开turntosb.forhelp'turnback=turnaround转过身来tumout（tobe）生产，制造/结果是，后来证明是5.Neveruseladdersonawetfloor.千万不要在湿地上用梯子。neveradv.（1）决不，永不InevergetuponSundaymorning・（2）从不，尚未（常于完成时连用）Ihaveneverheardaspeechasim

7、pressiveasthis.我从未听过这么动人的演讲。（3）never置于句首，部分倒装NevermyfriendPaulforgethisfirstchemistryteacher.否定畐ij词还有：hardlyseldom=rarelylittlenotonlynotuntilscarcely（儿乎不）nosooner...than（一。。。就。。。）bynomeans（决彳、）atnotime（决不）undernocircumstances（决不）