Book3Unit1难句解析1.Ontheimportantfeastday,peopleeatfoodintheshapeofskullsandcakeswith“bones”onthem.(P2)此结构为“with+宾语（bones）+补语（onthem)”，onthem是介词短语在with复合结构中作补语。除此以外作补语的还有形容词、副词、现在分词、过去分词和不定式等。如：Withtheboyhelpingus,wehadnodifficultyfindingthewayout.有了这个男孩的帮助，我们毫不费力的找到了出路。Withmanythingstodealwith,Ihavetostayuplatetonight.有许多事情要处理，今晚，我只好熬夜了。【练习】完成句子:1)Don’tgoouttoplay____________(作业没做完）.2)Hewenttosleep____________(开着灯).2.Itisnowachildren’sfestival,whentheycandressupandgototheirneighbors’hometoaskforsweets.(P2)when是关系副词，代替先行词festival在句中作时间状语，相当于duringwhich。当先行词是表示时间的名词时，定语从句的引导词用when还是that/which主要看这个关系代词在从句中充当什么成分。若作宾语或表语，要用关系代词that或which；若作状语，则要用when。如：Theearthquakehappenedin1976whichI’llneverforget.这场地震发生在1976年，这一年我永远难忘。Theearthquakehappenedin1976whenIwasonlytwoyearsold.这场地震发生在1976年，那时我才两岁。【练习】用when,that,which填空：3)Ioftenthinkofthatsummer____________westudiedinSingapore.4)I’llneverforgettheday____________wespenttogether.3.Themostenergeticandimportantfestivalsaretheonesthatlookforwardtotheendofwinterandtothecomingofspring.(P2)one为不定代词，用以代替前面提到的那一类人或物中的一个（可数名词）；若代指复数名词用ones。而it用于指代上文提到的那个表示物的名词本身，既可以是单数可数名词，也可以是不可数名词。如：Idon’thaveadictionarybutI’mgoingtobuyone.我没有词典可是我准备去买一本。Ihaveatape-recorder.Myunclegaveittome.我有一部录音机。它是我叔叔送给我的。【练习】用it或one填空：5)ThemilkissohotthatIcan’tdrink______now.6)Agoodwriteris______whocanexpressthecommonplaceinanuncommonway.4.TherewasHuJinwavingathimandcalling,“Whyareyousolate?I’vebeenwaitingforyouforalongtime!”(P7)Have/hasbeendoing...是完成进行时，表示动作发生在过去一直延续到现在有可能刚刚结束，也有可能继续延续下去。如：Heisill.Hehasbeeninbedforthreeweeks.他病了，已经卧床三个星期了。Ithasbeenrainingfortwodays.Theriverisoverflowingnow.已经下了两天的雨，小河都涨水了。【练习】完成句子：7)Youaresolate.We____________(我们一直在等你)forawholehour.8)Foryears______________(我们一直梦想得到)betterhousingandjobs.参考答案1）withyourhomeworkunfinished2）withthelighton3）when4）that/which5）it6）one7）havebeenwaitingforyou8）wehavebeendreamingof