题目

已知方程 是关于x的一元一次方程，则 . 答案：【1】0 Do you like going running? Some people think running is boring. But there are ways to make it more exciting- for example, "plogging".Plogging is new exercise trend(趋势)from Sweden. The name comes from the words "pick up" and "jogging". It means picking up trash while running.Ploggers go outside with a pair of gloves and a trash bag. They stop to pick up trash as they run. Nobody likes to see trash while they're doing exercise. This new trend onmental protection(环境保护）and healthy living together.Plogging may even be better for you than just running, since bending down( )to pick up trash is another kind of exercise itself. So try to plog with your friends on your way to school. You can stay healthy and keep the environment clean at the same time.【1】What trend does this story talk about?A.Making new words.B.Running with gloves.C.Picking up trash while runningD.Throwing away trash in bags.【2】Where did the trend come from?A.SwitzerlandB.. The United StatesC.SpainD.Sweden【3】What is the best part of this new trend?A.More people are wearing gloves while running.B.It's good for the environment, as well as for people' healthC.It tells people to stop using public trash bags.D.Runners take their own bags so there will be no trash.【4】The last paragraph mainly tells us that________.A.bending down while plogging is also good exercise.B.it is important to keep the environment clean.C.plogging gives you a chance to make friends.D.you should run to school with your friends.