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【写作提示】1.审[文]题:(1明确故事人[章]物:本故事中主要人[来]物为作者、作者的女[自]儿伊丽莎白;(2)[知]厘清主要事件:作者[嘛]的女儿伊丽莎白要参[答]加游泳比赛,赛前很[案]紧张,害怕游不好;[网]比赛时遇到突发状况[文],但是通过和队友的[章]共同努力羸得了比赛[来]。2写作要点:{1[自])伊丽莎白在队友的[知]帮助下穿上了脱落的[嘛]袜子,并最终赢得了[答]比赛:(2)伊丽莎[案]白同作者分享比赛过[网]程和胜利后的喜悅。[文]【参考范文】Eve[章]rybody on her leam started screaming[来] "Elizabeth[自]! Get the sock!Howe[知]ver, she couldn' t hear them. A girl on my daughter's team jumped inthe pool, grabbed the sock, and swam after Elizabeth[嘛]. "You have to putthe sock on, the girl screamed.[答] Elizabeth[案] continued[网] swimming while hteammate[文] put on the sock for her. The girl in lane two was about to passEliza[章]beth. With the sock finally on, Elizabeth[来] tried her best to swim thelast 25 meters. It was close, but Elizabeth[自] beat the other girl to the wallfor the victoryOn[知] the ride home, she shared her moment of winning again andagain.[嘛] She talked about how seared she was when someone grabbed herfoot, how funny it was when she came to the finish and how great thenight was. She told me that if the T-shirt relay was an Olympic event,her[答]eam would win the gold medal. I told her that in my professio[案]nal opinionsh[网]e was absolutel[文]y right【点评】[章]该范文围绕原文内容[来]进行了非常合理的续[自]写,紧扣语境,与原[知]文逻辑紧密,详略得[嘛]当。由第一段首句内[答]容“团队中的每个人[案]都开始大喊伊丽莎白[网]!拿袜子可知,第一[文]段可描写她听不见大[章]家的减叫声,一个女[来]孩跳进水中帮她穿上[自]了袜子,面临对手即[知]将超越自己她拼尽全[嘛]力取得了胜利。由第[答]二段首句内容“在回[案]家的路上,她一次又[网]一次地分享自己赢得[文]胜利的时刻”可知,[章]第二段可描写她回想[来]比赛过程中的感受以[自]及对这次经历的感想[知]。作者表示赞同女儿[嘛]的心态和努力行文中[答]不乏较为高级的表达[案],如 continue doing sth., be about to do sth.beat sb to sth., In one' sopInion以[网]及with复合结构[文]when引导的时间[章]状語从句、tht引[来]导的宾语从句等,使[自]得语言表达生动多样[知]。

22.【解析】(1[嘛])将直线l的参数方[答]程消去参数t得x+[案]y-(2+a)=0[网]将x=poos,y[文]=psin6,代入[章]得y2=4x所以直[来]线l的普通方程为x[自]+y-(2+a)=[知]0曲线C的直角坐标[嘛]方程为y2=4x([答]2)设A,B两点对[案]应的参数分别为1,[网]l得+22(a+2[文])t+2a2-16[章]=07分A=32a[来]+96>0,[自]得a>-38[知]分因为点D为AB的[嘛]中点,所以t1+1[答]2=0,即-22([案]a+2)=0,得a[网]=-2>-3[文],所以实数a的值为[章]-210分