2022 英语周报 七年级 AHW 14答案

6.A【解析】调查活动能力强、活动范围广的动物的种群密度采用标志重捕法,调查活动能力弱活动范围小的动物的种群密度采用样方法,A项正确;沙丘、冰川泥上进行的演替属于初生演替,火灾过后的草原上进行的演替属于次生演替,B项错误;草原生态系统的结构包括生态系统的组成成分和营养结构,C项错误;春天池塘里的各种生物和夏天池塘里的各种生物不属于同一群落,因为不是同一时间,D项错误。

One possible version:Dear Janehere will he a Huangmei Opera vs, Qiong Opera concert in our sehool. Knowing that you are interested in Chineselocal operas, I' d like to invite you to attend itThe concert is to be held in the lecture hall of our school at 7: 00 pm this Sunday. Some teachers and students willperform Huangmei opera and Qiong opera. Im sure they will give you a very impressive concert, through which you willearn more about our local operas.Looking forward to your coming.Yours sLi He

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