题目

规定“ ”是一种新的运算法则,满足:a b=ab-3b.示例:4△(-3)=4×(-3)-3×(-3)=-12+9=-3. (1) 求-6 2的值; (2) 若2 (x+1)=x (-2),求x的值. 答案:解: −6 △ 2=(−6)×2−3×2=−12−6=−18 ; 解: ∵2 △ (x+1)=x △ (−2) , ∴2(x+1)−3(x+1)=−2x−3×(−2) , 即: −x−1=−2x+6 , 解得: x=7 .完形填空(共10小题,计10分)Once there was a king who told some of his people to dig a pond (池子).The king then told his people that one person   16  each family had to bring a glass of milk during the night and put it into the pond. So, by the morning, the pond should be   17 of milk.After   18  the order, everyone went home. As one man prepared his milk, he thought that since everyone was bringing milk, he would just   19  a glass of water and put that into the pond instead.   20  it was dark at night, no one would notice it, so he quickly went and put the water into the pond and   21  home.In the morning, the king went to visit the pond. To his  22 , the pond was only filled with water! What happened? Yes! Everyone had the same idea   23  that man. They all thought, “I don’t have to waste my milk. Someone else will do it.”Dear friends, when you plan to help poor people or people in trouble, do not think that   24  will take care of it. Instead, it starts with you. If you don’t do it, no one else will, so change yourself and make a   25  .   【小题1】A.atB.fromC.onD.with【小题2】A.filled B.emptyC.crowdedD.full【小题3】A.givingB.refusingC.receivingD.offering【小题4】A.hideB.stealC.waste D.drink【小题5】A.IfB.SinceC.WhileD.After【小题6】A.leftB.cameC.returnedD.arrived【小题7】A.surpriseB.satisfactionC.joyD.taste【小题8】A.withB.toC.asD.of【小题9】A.othersB.the othersC.noneD.neither【小题10】A.faceB.mistakeC.livingD.difference
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