Lesson3-经典句式精讲练

3/3Lesson3经典句式精讲练1．That'swhatpeoplecalltheundergroundinLondon.那就是人们对伦敦地铁的叫法。(1)这是what引导的表语从句，what在从句中充当宾补。Thisiswhatwecall“couchpotato”．这就是我们所说的“沙发土豆”现象。(2)what还可引导(主语从句、宾语从句)等，在从句中不仅起连词作用，还作主语、宾语或表语成分。Theyarediscussingwhattheyshoulddonext.他们正在讨论下一步要做什么。Whatismostimportantinlifeisn'tmoney.人生最重要的并非金钱。Thebuildingisbuiltonwhatusedtobeapool.这座楼房是在原来的一个池塘上建的。[关键一点]what引导的名词性从句若表示“所……的事/人/物”，相当于“先行词＋that/which”引导的定语从句。ThisiswhatI'mthinkingabout.＝ThisistheproblemthatI'mthinkingabout.这就是我所考虑的问题。[多角度演练]1．判断what引导的名词性从句的类型①Idon'tunderstandwhatyousaidjustnow.宾语从句②Whathetoldyouwaswhathadbeendiscussedatthemeeting.主语从句；表语从句2．句型转换③Heisnolongerthepersonthatheusedtobe.→Heisnolongerwhatheusedtobe.④Allthatweneedisyourtimelyhelp.→Whatweneedisyourtimelyhelp.⑤She'sangrywithhiswords.→She'sangrywithwhathesaid.3．单项填空⑥(2011·江西高考)Thevillagershavealreadyknown______we'lldoistorebuildthebridge.A．this B．thatC．what D．which解析：句意：村民们都已了解到我们要做的事就是重建这座桥。本题中known后跟宾语从句，其中含有主语从句whatwe'lldo,what在该从句中作do的宾语，表示“……的事”。答案：C2．I'malwaystiredbeforeIarriveatwork.这样每天到办公室前，我就已感到很疲倦。(1)before作连词引导时间状语从句。Anothergreatwavecamebeforetheyreachedthehouse.没等他们到达房子，另一个大浪就扑过来了。BeforeIcouldsitdown,heofferedmeacupoftea.没等我坐下，他就给我端上了一杯茶。Trytograsptheopportunitybeforeitistoolate.趁现在还不晚，一定要抓住机会。(2)连词before的常见句型：①Itwillbe/was＋时间段＋before＋时间状语从句：过了(一段时间)……才……Itwasquiteafewyearsbeforehefinallyfinishedhisnovel.过了好多年他才终于写成了这本小说。②Itwon'tbe/wasn't＋时间段＋before＋时间状语从句：没过多久……就……Itwon'tbelongbeforewemeetagain.不久我们会再见面的。[多角度演练]1．完成句子①Itwaseveningbefore_we_reached_(在我们到达之前)thelittletownofWinchester.②—Whydidn'tyoutellhimaboutthemeeting?—Herushedoutoftheroombefore_I_could_say_a_word(我还没来得及说一句话)．2．句型转换③Whenherealizedit,ayearhadpassed.→Ayearhadpassedbeforeherealizedit.④Theygottoknowaboutitsoon.→Itwasn'tlongbeforetheyhadgottoknowit.⑤HeshoutedatmeandIhadnotimetoexplain.→HeshoutedatmebeforeIcouldexplaintohim.3．单项填空⑥(2010·福建高考)Thegirlhadhardlyrungthebell________thedoorwasopenedsuddenly,andherfriendrushedouttogreether.A．before B．untilC．as D．since解析：本题考查连词。根据句中前后的时态判断，hadhardlyrung为过去完成时，