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22.解:(1)直[文]线l的参数方程中消[章]去t,得l的普通方[来]程为x+y-2=0[自].(2分)曲线C的[知]极坐标方程为p=2[嘛]lsin+2 I cos al,Epp=2 lpsin 01 +2 pcos 0I(3分)又p2[答]=x2+y2,x=[案]pcos6,y=p[网]sin,得曲线C的[文]直角坐标方程为x2[章]+y2-21x1-[来]2lyl=0(5分[自])(2)曲线C的大[知]致图象如图所示,结[嘛]合图象和直线m:=[答]an(an∈[0,[案]]p∈R),不妨令[网]p4=2 sIn cn+2esan则[文]由对称性得|AB|[章]=2p1=4sin[来]a+4cosa=4[自]2sin(a0+7[知])=26,(数形结[嘛]合思想的应用)7分[答])所以sin(a0[案]+1)(8分)2又[网]a∈[0,],所以[文]a+4∈371,则[章]a+4”4或TT ZTT(9分)因此[来]ao=12T或(1[自]0分)
【语篇类型】一记叙[知]文【主题语境】人与[嘛]自我一助人经历【文[答]章大意】本文讲述了[案]作者在芝加哥偶遇一[网]个无家可归的人并施[文]以援手的故事。【核[章]心素养】语篇以作者[来]帮助一个无家可归的[自]人为背景,展示了人[知]性的闪光点和生活中[嘛]的真善美,助力考生[答]树立正确的价值观,[案]体现了文化意识这一[网]核心素养。郾熟词新[文]义1.dow常用义[章]:淋浴文章义:大量[来]给予He showered her with gifts.他送给[自]她许多礼物。2. finance常用[知]义:n.资金;财政[嘛],金融,财务文章义[答]:t.为……提供资[案]金The concerts are financed by the Arts Council.音[网]乐会由艺术协会出资[文]举办词汇积累 flash back(osh.[章])回忆,回想,回顾[来];(尤指电影、书等[自])闪回,倒叙Her[知] thoughts flashed back to their wedding day.她回忆起他[嘛]们婚礼那一天的情景[答]。难句分析1 only had a few dollars left in my wallet,,.[案] but I went tobu连接两个并[网]列句him directly,[文] bent down and handed them to this fellow, talking withhim, touching his hand and wishing him well before I left现在分词短[章]语作伴随状语bef[来]ore引导时间状语[自]从句译文:我的钱包[知]里只剩下几美元了,[嘛]但在我离开前,我径[答]直走到他面前,弯下[案]腰,把钱递給他,并[网]和他交谈,抚摸他的[文]手,祝他一切顺利。[章]4.D【关键能力】[来]考查理解具体信息的[自]能力。【解题思路】[知]根据第二段的" a man sitting on the sidewalk.[嘛].Mymind flashed back and I realized I had seen a homeless person oncebefor[答]e:Me"可知,作者在外出散[案]步时看到了一个无家[网]可归的人,这使他想[文]起了自己无家可归的[章]经历。5.c【关键[来]能力】考查推理判断[自]的能力。【解题思路[知]】根据第三段的" the home I grew up in caught fire in themiddle[嘛] of the night. I can still remember the fire destroyed[答] everythin[案]gwe owned ""our small town community[网]temporary[文] house"可知,作者的家遭遇[章]火灾,大火烧毁了他[来]们的一切使他们无家[自]可归。第二段的" I had seen a homeless person oncebefor[知]e:Me"也是提示。6.D【[嘛]关键能力】考查理解[答]具体信息的能力。【[案]解题思路】根据第四[网]段的" I only had a few dollars left in mywallet,[文] but I went to him directly,[章] bent down and handed them to thisfello[来]w, talking with him, touching his hand and wishing him well beforeI left"可知,作者把身上仅[自]有的几美元都给了那[知]个无家可归的人,且[嘛]和他交谈,安慰了他[答]。7A【关键能力】[案]考查推理判断的能力[网]。【解题思路】根据[文]最后一段的内容可知[章],作者一直并且将继[来]续帮助他人,作者认[自]为即使自己所能做的[知]非常有限,但只要人[嘛]人付出点,世界就会[答]变得更好。结合上文[案]中的“ Thankfull[网]y, our small towncommu[文]nity showered us with love and care""I could remember feelinglo[章]ved even after losing so much"可推知,作者感恩于[来]自己得到的爱与关怀[自],也希望将其传递下[知]去故选A项”关爱使[嘛]世界更美好”。B项[答]”人之初性本善";C项"不尝试,不知晓”;[案]D项"凡事要肯等待"。
