英语周报2022_答案

书面表达Dear sir or madamI am Li Hua, a middle school student from China who is crazy about differentcultures around the world. Recently, I learned on your official website that therell be a summer camp in my city. I'm writing to participate in it.First, having learned English for almost ten years, I can speak English flu-ently. Moreover, with the development of China, there are more and more young-sters who show great interest in Chinese culture and this is really a wonderfulportunity for us to communicate the different cultures with each other, I will he a-hle to learn from other cultures to broaden my horizons and spread Chinese cultureI hope I can he accepted as a member in your summer caLooking forward to your reply.RegardsLi H

22.解:(1)aO(03)=1得是m01am0所以曲线C的直角坐标方程为y=1,即 3y-23分当a=0时,p=2,所以点M的极坐标为(2.0)当0时,-3,所以点N的举标为(28,…5分(Ⅱ)由(1)可得,点M的直角坐标为(2,),点N的直角坐标为(0,2)所以点P的角坐标为(1,)7分则点P的极坐标为(3,)所以直线OD的极坐标方程为0-65,∈(-… ),…10分

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