英语周报高三高考14答案

短文改错Last month, my good friend Mark got an expensive watch for his birthday present. He showed A to every-one in our class proud. I really envied him and every day I ask my mum to buy me an expensive present.askedHowever, to my disappoint I only got a second-hand bike on that special day. I thought little of the bikedisappointmentboughtby my mother. But one day while I was riding back home from school, I passed the shop that my mumwhereworked. I saw a familiar figure kneeling down in the front of it and cleaned the outside steps of the shop. Itcleaningwas my mum! She worked so hard to raise me! Tear in my eyes, I got off the bike and worked together withTearsher

7.B【解析】因为对任意x1,x2∈(0,+∞),f(x1)-f(x>0,所以函数f(x)在区间(0,+∞)dI上为增函数又函数f(x)为偶函数,所以f(x)在区间(一∞,0)上单调递减.又3=log3=log3√27 (2)>f(8),即c<≤6

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