2022-2022年英语周报高二课标第1期答案

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

2.解:(1)由题意可得,f(x)=2+]n(x+1)-1所以f(1)=-2-m2(3分)(2)由题得,g'(x)x+1当x∈(0,+∞)时,不等式f(x)-k{(2>0恒成立,即k 0在x∈(0,+∞)上恒成立所以g(x)在(0,十∞)上是增函数又g(2)=1-ln3<0,g(3)=2-ln4>0所以存在唯一实数根a∈(2,3),使g(x)=0,则a=1+ln(a+1),所以当x>a时,g(x)>0,即h'(x)>0,h(x)单调递增时,g(x)<0,即h(x)<0,h(x)单调递减,所以h(x)的最小值为hCa(a+1)1+ln(a+1)∈(3,4)放正整数k的最大值为(12分)

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