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第17课时九年级Unit5考点一so与not的用法【课文原句】Idon'tthinkso．我不这样认为。(九年级P66)(1)此句常用来否定上文提到的内容或对方所说的话，其肯定形式为“Ithinkso.”。—Doyouthinkit'sgoingtoraintomorrow？你认为明天会下雨吗？—Yes,Ithinkso./No,Idon'tthinkso.是的，我认为会下雨。/不，我认为不会下雨。(2)so与not常可用作替代词，代替前面已出现过的分句的一部分或整个分句，以避免重复。Ihopeso.我希望如此。→Ihopenot.我希望不是这样。I'mafraidso.恐怕是这样。→I'mafraidnot.恐怕不是这样。完成句子1．—IthinkWangHongcantalkwithAmericansfreely.—__________(我也这样认为).ShespeaksEnglishverywell.Ithinkso考点二help的用法【课文原句】Wehavediscoveredthattheairpressurehelpsthecardboardholdthewaterinthejar.我们已经发现大气压力帮助硬纸板在罐子中保存住水。(九年级P66)【拓展】helpful与helpless词语含义用法helpful有帮助的；有用的behelpfulto...“对……有用”helpless无助的；无法抑制的feelhelpless“感到无能为力”用适当的介词填空2．Billhasmadegreatprogress_____thehelpofhisteacher.with考点三useup的用法【课文原句】Whenthecandlestopsburning,ithasusedupalltheoxygenintheair.当蜡烛停止燃烧时，它已用尽了空气中所有的氧气。(九年级P68)useup意为“用完，用光”Hehasusedupallhismoney.他已经用光了他所有的钱。【拓展】与up有关的短语cutup切碎eatup吃完giveup放弃takeup拿起；开始从事单项选择3．CleanPlateCampaign(光盘行动)callsonChinesepeopleto___allthefoodeachmeal.A．eatupB．useupC．pickupD．cutupA考点四lookthrough的用法【课文原句】You'relookingthroughthewrongend,Danny！你在看错误的结尾，丹尼！(九年级P70)(1)lookthrough意为“快速查看；浏览”。It'sagoodhabittolookthroughnewspaperseveryday.每天浏览报纸是个好习惯。(2)look常与其他介词或副词构成短语，是中考的重点，如lookup“查找”，lookafter“照顾”等。单项选择4．(2018·江苏东台模拟)—Andy,wouldyouplease___thereportformeandseeifthereisanymistake?—OfcourseIwill.A．lookaroundB．lookthroughC．lookupD．lookafterB用适当的介词填空5．Grandfatherliveswithus.Wealllook______him.after考点五worth的用法【课文原句】Well，it'sworthatry，evenifIdon'tfindaplanet.好吧，它值得一试，即使我找不到一个行星。(九年级P70)(1)worth是形容词，意为“值得；有……价值(的)”，通常只作表语，不用于名词前作定语。常用搭配有“beworthsth.”，“beworthdoingsth.”。Ithinkit'sworthnothing.我认为它一文不值。Thesmalltownisworthvisiting.这个小镇值得一看。(2)worthy是形容词，意为“有价值的”，可用作表语和定语。“beworth＋n.＝beworthyof＋n.”。Thispenisworthfivedollars.＝Thispenisworthyoffivedollars.这支钢笔值5美元。完成句子6．(2018·江苏无锡中考)机会就在面前，但值得冒此风险吗？Thechanceisrightinfrontofus,but_______________________isitworthtakingarisk单项选择7．(2018·江苏泰州中考)AmazingChina(《厉害了，我的国》)winshighpraisefromthepublic.Ithinkthedocumentaryiswellworth___．A．watchB．towatchC．watchingD．watchedC考点六unless的用法【课文原句】Idon'tthinkyoucanfindoneunlessyouhaveabiggertelescope.我认为你不会找到的，除非你用一架更大一点儿的望远镜。(九年级P70)unless是连词，意为“如果不，除非”，引导条件状语从句，相当于“if...not...”。I'llgoforapicnicunlessitrainstomorrow.如果明天不下雨，我将去野餐。Iwon'tgotothepartyunlessI'minvited.除非被邀请，否则我不会去参加聚会的。单项选择8．(2018·湖南长沙中考改编)Youmustn'tdriveacarontheroad___yougetadriver'slicense.A．unlessB．ifC．sinceD．thoughA考点七lie与lay【课文原句】Whentheybegintotravelnorthinspring，thefemaleslayeggs.当它们在春天开始向北方迁徙，雌性产卵。(九年级P72)【辨析】lie,lay的一词多义原形释义过去式过去分词现在分词lie(vi.)躺；位于laylainlyinglie(vi.)说谎liedliedlyinglay(vt.)放置；下蛋laidlaidlayingThemanlyingthereliedthathehadlaidthemoneyonthetable.躺在那里的那个人撒谎说他把钱放在桌子上了。用括号内所给单词的适当形式填空9．He____(lay)thepapersonthedeskandthenwentout.laid