2022九年级英语周报新目标第6期答案

12A本题考查椭圆的方程,设椭圆上任意一点P(3、),因为圆的离心率》、③,所A1-=}.所以椭圆方程为所以当如号号时一1解一号成如(去此时圆的方程为+一、、(心一时一}一解得+b2+42+2一,又因为2,此时椭圆的方程为2+y2=1时、g(x)=2-2x2

【语篇导读】本文介紹了在美国宠物与人们之间的关系。宠物已经成为一些人们生活中的一部分,热爱动物已经成为每个人的习惯。1.A【解析】细节理解题。根据第二段 Scientists havefound that pets help people live longer! They make pecple happier, too. Because of that, animals are brougnto hospitals for“ visits可知狗会被送到医院是因为它们可以让病人更快乐,故选A。2.D【解析】推理判断题。根据第三段 Americans holdBe Kind to Animals Week" in the first week of MayPet shows are held during the week and holding petshows is the most popular activity. Even if you don'tlive in America, you can do this可知“善待动物周”最受欢迎的活动是举办宠物秀,故选DA【解析】主旨大意题。根据第三段 If others aroundyou do bad things to an animal, try to stop them. Apeople, we must protect animals who can't speak forthemselves可知文章主要讲的是宠物很可爱,需要照顾和保护,故选A。

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