2022英语周报八年级42答案

第三节One possible wersionParagraph 1Some time later, he woke up under a tree in the samevalley. He was alone, worried about his dog and he knewhe was going to get into more trouble with his wife. Then henoticed a curious thing his hair was over his shouldersand his beard was over a foot long! So strange was he thathe decided immediately to get back to the village. As soonas he got there, he realized that everything was differentand there were lots of new houses. Surprisingly, he didn'trecognize the people in the villageParagraph 2:When he got to his house, he saw that it was old andbandoned. To his sorrow, his wife had died two years before and the two children had left away. Despite the arment with his wife, he was regretful for the past. Facingthis sharp change, Rip was determined to change his way ofliving and never be a lazy man. He became a diligentfarmer and kept pace with the new society. In his sparetime, he would still go to the old inn that had been rebuiltto tell some stories about his adventure in the valley, whichappealedto the children a lo

8.答案:B解析:抛物线y2=8x的焦点F(2,0),准线为1:x=-2,过A、B、P分别作A、BB、P垂直于,垂足分别为A,B,P,由抛物线定义知 AAFA|,|BB'同FB|.又P为AB中点由梯形中位线定理得|PP=(AA|+|BBD=(FA|+|FBD≥|AB=×10=5,则P到y轴的距离d≥5-2=3(当且仅当AB过抛物线的焦点时取“=”),所以dm=3,即M点到y轴的最短距离为3.故选B

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