2022高二外研英语周报第四期答案

【参考范文】One day, Spotty returned from his daily walk with a broken leg. Appearing exhausted, he came to myroom and sat near me, the leg bleeding. I called my mother and she quickly tied a bandage around his leg andgave him food to eat. I was very upset. But the next day, Spotty followed me wherever I went happily asusual though he limped a bit. After this incident my relation with Spotty became more intense. I reallyadmired him a lot for his courageAlmost a year later, one midnight we heard Spotty barking breathlessly. We rushed out and saw himbarking continuously, heading somewhere. After some time Spotty became quiet. I patted him on his backand came inside. The next morning, my heart skipped a beat when I didn't see Spotty. I searched for him ineach and every corner but in vain. And this time he had gone and would never come back. I cried and waitedfor him. But there were no signs of him and I only say him looking at me with his sparking eyes in my dream

2C【解析】根据题意知()=1。2=∴:g(1)=[f(1)]f(-1)] 121,∵g(1)≠g(-1),g(1)≠-g(-1),∴函数g(x)既不是奇函数也不是偶函数,A错误;∵f(-x)f(x)f(x)是奇函数,B正确;由复合函数的单调性知f(x)=2-1 e在R上是增函数,C正确;∵er>0,∴1 e>1,∴g(x)=Lf(x)]={-1,0},D错误.故选BC.

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