2022英语周报高三33答案

【书面表达2】What a mess! "April frowned. Though she had been longing for a non-Earth Daybirthday, it was difficult to turn a blind eye to such a mess. She turned around to her friends, " Howabout picking the trash first? "" Her proposal was quickly approved by others and soon they were inbusiness. Aprils mum grabbed some gloves from the trunk while her dad managed to removethose shopping bags in the trees. With the bags, April and Bailey collected scattered bottles. Bythe drain, Josie and Tyler made great efforts to clear the blockage Many hands make light workIn a short while, three bags were filled with cans and newspapers to recycleApril looked at the collected rubbish and smiled. Then she looked up at her friendsTheir neat clothes for the birthday party were soaked with sweat. but their faces glowed withsatisfaction. It felt so good to do something for the earth. Happy Earth Day, everyone, " said AprilNow we are ready for Maze Craze. ""Happy Birthday, April! "shouted her friends. "Im so luckyto have been born on Earth Day!("Wow, another earthy birthday, )April thought to herself."AComposts Carnival may be a good idea for next year.

9.B【思维导图】设Q(x,y),P(xy)→切线l的方程为x+y0=1题意→F(20)→直线l的方程为y=→点P的轨迹方程为x=→结果【解析】设Q(x,%0),与l2的交点P的坐标为(x,y),依题意知切线l1的方程为x+y=1①(过圆上一点的切线方程)由于双曲线C的标准方程为x2-y2=1,则F1(√2,0),直线QF1的斜率为0,所以直线√2的方程为y=x,化简得x+y2x②,联立①②知交点P的轨迹方程为x=2,又双曲线C的渐近线方程为y=x,则点P的轨迹与渐近线的交点的纵坐标分别为2-2,所以所求线段长为2,故选B

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