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第一节:命题立意:[文]本題要求学生以“我[章]最爱的人”为题写一[来]篇短文参加英语作文[自]比赛。该题的情境设[知]置合理,符合中学生[嘛]的认知水平参考范文[答]:My Beloved OneSeeing[案] the title. I think of my beloved mother. She is the most beautiful[网] woman in the world, whose eyesare as clear and bright as stars in the night sky.My mother is generous,[文] out-going[章] and, above all, always optimisti[来]c. On a rainy day, she came to school bye-bike and picked me up. We made our way on the crowded street carefully[自]. Suddenly,[知] the bike slipped and bothof us fell onto the ground. Not annoyed, mother laughed and said that it was lucky for us not to be injured. Iwas deeply touched by her optimism.[嘛]
20(本小题满分1[答]2分)(1)因为焦[案]点F(2,01,所[网]以点,B的坐标分别[文]为(2,p22(2[章]-所以S2:2p.[来]D=2,故=2.故[自]抛物线C的方程为y[知]=4x5分(2)由[嘛]题设P(x,),Q[答](x2,y2),易[案]知直线的斜率存在,[网]记为k则设直线l:[文]y=kx+m,与y[章]2=4x联立得ky[来]2-4y+4m=0[自],得暴江考试则x+[知]x,=当+y242[嘛]m(y;+2k- ky1 y244k164k[答]xIyinkn+k[案]y y, x2(kx,+m)[网]+x,(kx2+k[文]x2+m(x1+x[章]2)400x xXxXr.又知k[来]op=tana,k[自]o=tanβ,ta[知]n(a+B)- tan a. tan B1-koA·km[嘛]/4令tan a +tan b ko,+OB解得m[答]=4+4,所以直线[案]:y=kx+4k+[网]4=k(x+4)+[文]4,恒过定点12分[章]
