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第二节【语篇解读】[文]本文是一篇说明文。[章]假如你在野外开车遇[来]到火灾怎么办?本文[自]就此给出几点建议。[知]16.参考答案E说[嘛]明分析根据下文 If you know or can see the direction[答] the fire ismoving In, try to drive away from it as best you can:"可知,如果你知道或[案]看见火势移动的方向[网],尽力开车避开,所[文]以E项(向浓烟或火[章]焰相反的方向行驶)[来]符合语境17.参考[自]答案D说明分析根据[知]上文“ Drive slowly and turn on your headlight[嘛]s and hazardlig[答]hts.(缓慢开车[案],打开前灯和危险警[网]示灯)”及下文“ By doingso firefight[文]ers around might see your car and help you.(这样做的[章]话,周围的消防员可[来]能会看到你的车并帮[自]助你)”可知,D项[知](你的车在烟雾弥漫[嘛]的环境中很容易被看[答]到)承上启下,符合[案]语境18.参号答案[网]F说明分析本段的主[文]题句是“ Keep an eye out for people or animals.([章]留意人或动物)”,[来]根据上文“ Accidents[自] are a major risk in poordrivi[知]ng condition[嘛]s.(恶劣的驾驶条[答]件下,事故是一大风[案]险)"及FX lf you're worried that people or animals are nearby but youn' t see them, use your hom.(如果你担[网]心附近有人或动物,[文]但你看不见他们,用[章]你的喇叭)”可知,[来]F项(人和动物可能[自]会受到惊吓,在路上[知]奔跑)承上启下,符[嘛]合语境19.参考答[答]案A说明分析根据+[案]文“ Keep listening[网] to the radio for informati[文]on aboutwher[章]e the fire is heading.([来]持续收听收音机获取[自]信息,了解火势的走[知]向)”及下文“ Have the winds changed at al?(风向有所改[嘛]变吗?)”可知,A[答]项(它是否朝着新的[案]方向蔓延?)承上启[网]下,符合语境。20[文].参与答案B说明分[章]析根据下文“ If your way becomes blocked or you can see thefire moving towards you, pull the car over to a safe area.(如果你[来]的路被堵住了,或者[自]你看到火正向你逼近[知],把车停到一个安全[嘛]的地方)”可知,B[答]项(如果你看到火焰[案]越来越近,请靠边停[网]车)与下文紧密衔接[文],符合语境。
11.B【解析】设[章]△A1B1F的面积[来]为S,直线AB:x[自]=my+2,代人抛[知]物线方程,消元可得[嘛]y2-2pmy-p[答]=0,设A(x1,[案]y1)、B(x2,[网]y2),则y1·y[文]2=-y=2pm,[章]S△M=×1A41[来]1y|-2n+2|[自]×y=×1第+21[知]×1x1.m是×B[嘛]X=×+1|x1-[答]×|2+2×1y1[案],S△MP·Sm,[网]=212+告×11[文]××|2+号×1([章]器+号)x(器+号[来])2p亚+×(+)[自]+yiyi2p]×[知]p=}×[号++2[嘛]]×p=×((m2[答]+1)=9,S号√[案](y+y)=4yy[网]/(2pm)2-4[文]×(-p2)=p2[章]×√m+1=6.故[来]选B.
