已知直线l与函数f（x）=1n x的图象相切于点（1，0），且l与函数g（x）=$\frac{1}{2}$x²+mx+$\frac{7}{2}$（m＜0）图象也相切．

（1）求直线l的方程及m的值；

（2）若h（x）=f（x+1）﹣g′（x），求函数h（x）的最大值；

（3）当0＜a＜1时，求证：f（1+a）﹣f（2）＜$\frac{a-1}{2}$．

如图所示装置可用来制取Fe（OH）₂和观察Fe（OH）₂在空气中被氧化时的颜色变化．实验提供的试剂：铁屑、6mol/L硫酸溶液、NaOH溶液．下列说法错误的是（　　）

文章强调陈尧咨善射、当世无双、十中八九的目的是（    ）

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     George selected his food in Value Mart carefully. He estimated he had180cents today.He was pleased he had got good2for his money again.

      At the exit，the freezing wind3him of his gloves.He was sure he was wearing them whenentering the4.He made a search of his pockets.Then he thought theymust have been5somewhere in the store.George had bought the blackgloves for $35 ten years ago.They were leather，softand durable.Until then，hehad worn cheaper man­made material that never lasted long.His6to buythe gloves turned out to be good，whicheven7his position on the bus，aspoorer passengers stared at him8.

      George re­entered the store.He followed the same9he had walked before，10at the bread counter，to the dairy section，to the shelf where salt and sugar wereplaced.It did not take long to be11that the gloves were notthere.His12grew heavier.“People have changed，” he13.“Years ago，if somebody14something lost，they would give it back.”

      Ye the did not give up.This time he focused on the gloves on other shoppers’ 15.Suddenly he16a ladynearby wearing a black pair of gloves.He said，“Hi！” But when the surprised lady returnedhis17，hiseyes dropped to the floor，forthe fingers of her gloves were too small for him.

     Without gloves，hehad to18his hands into his sleeves.Back home，George was19.He could notdo without gloves.George decided to buy another leather pair.But before that，he stepped into Value Mart again tosee if by any20his gloves had been returned to the lost and foundoffice.The girl looked into her drawer and took out a pair of men’s leathergloves.“Are they？”

“Yes! Mine ！”George shouted with joy.