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1、Unit17GreatwomenLanguagepointsAt50IwasthefirstwomantotravelalonetotheNorthPole.表示时间先后或顺序用动词不定式作定语。e.g.Sheisthelasttocome.Chinawasoneofthefirstcountriesintheworldtostudythescienceoffarming.Whatelse,butajourneyattheoppositeendoftheworld,Antarctica.完整句子是:WhatelsewouldIdobutajourneyattheoppos
2、iteendoftheworld?But除了….相当于except,与不定代词，疑问代词连用。Inwinter,bearscandonothingbutliedownandsleep.Struggle除了strugglethrough外，struggle还可以和其他的介词等搭配，构成短语。例如：(1)strugglewith/against…同…作斗争他与疾病搏斗了许多年。Hehasbeenstrugglingwith/againstillnessformanyyears.(2)strugglefor为…挣扎，努力Shehasbeenstrugglingforsucces
3、sinherbusiness.为使事业成功，她一直努力奋斗着。(3)struggletoone’sfeet挣扎着站起来汤姆伤得很重，但他还是挣扎着站了起来。Tomwasbadlyhurt,buthestruggledtohisfeet.…Ifoundmyselfspendingawholedayinmytent.findoneself…“发现自己（处于某种状态）；不知不觉地…”SuddenlyIfoundmyselfatthewater’sedge.我忽然发现自己站在水边了。ThenIfoundmyselfsurroundedbyhalfadozenboys.Dickfo
4、undhimselfwalkinginthedirectionofMike’splace.IhadtravelledonlytwohoursonedaywhenthewindsincreasedsomuchthatIhadtoputmytentupbeforethewindsbecametoostrong.一天,我刚走了两个小时,突然狂风大作,我只好趁风力还不算太大之前支起帐篷。when表示过早发生某事,或突然发生某事。e.g.Ihadhardlyopenedthedoorwhenthedogbarked.我刚一开门,狗就叫起来。Afewdayslater,Iwasmov
5、ingforwardoveraslopethatseemedsafewhensuddenlywithoutwarningmyworlddroppedoutfromundermyskis.几天以后,我正在一个似乎安全的斜坡上前行,突然,毫无预兆,滑雪板下的大地陷下去了。when出现的句式：was/wereabouttodo…..when…正打算要做…，正在这时/突然间…was/weredoing…..when…..（当时）正在做，正在这时/突然间…haddone…when…刚刚做完…就…hadn’tdone…when…还没….就….Ihadtravelledonlytwoh
6、oursonedaywhenthewindsincreasedsomuchthatIhadtoputmytentupbeforethewindsbecametoostrong.had(hadn’t)done….when….Ihadhardlyopenedthedoorwhenthedogbarked.Thestudentshadn’tplayedfootballlongwhenthebellrang.threaten:vt.恐吓,威胁,预示(危险),似有发生或来临的可能,可能来临e.g.Noisytrafficthreatensourpeacefulwayoflife.T
7、heythreatenedtomakeitpublic.威胁要做什么Hewasthreatenedwithdeathifsherefused.Thedarkcloudsgatheringintheskythreatenedabigstorm.（天空聚集的乌云预示着暴风雨的来临。）Threatensbwithsth用~威胁某人Threatensb(not)todosth威胁某人（不要）做某事Threatentodosth威胁要做什么Ithawedafrozencakeovermyfire,placedacandleontheto
