贵州全国100所名校单元测试示范联考6003答案

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书面表达One possible version:Dear Eric,oudoing?Iritingtokoif youarewrite an article for our school's English newspaper.coMife in China"in the newspaper.which caiyinternational studenoth Chinese students and overseas students.Woere somethingyou lifein China?You canwens inr ouside your school on condition hatC.Furthermore,to make your article more lively,youttach some photos to it.300 words or so would be fine.I would begrateful if you could send it to me before next month.I'm looking forward to hearing from you.Yours,答案解析Li Hua阅违用

12分2解:(1)∵x2+y=p,x=oB,y=pmim.…m12分∴曲线C的极坐标方程为P=2sm我5分(2)将直线的参数方程化为直角坐标方程,得y=(x-2).…7分令y=0,得x=2,即M点的坐标为(2,0)又曲线C为圆,圆C的圆心坐标为(0,1),半径r=1,则MC|=38分∴MN|≤|MC|+r=3+1MN≥S-1…∴范围是[5-15+11…………10分