题目

一种新型燃料电池，它以多孔镍板为电极插入KOH中，然后分别向两极通入乙烷和氧气，其总反应式为：2C2H6+7O2+8KOH4K2CO3+10H2O，有关此电池的推断正确的是(    )A.负极反应为14H2O+7O2+28e-28OH-B.放电一段时间后，负极周围的pH升高C.放电过程中KOH的物质的量浓度不变D.每消耗1 mol C2H6，则电路上转移的电子为14 molEveryone needs friends. There is an old saying: Friends are God’s way of taking care of us. But how do you find real friendship and keep it?“The Care and Keeping of Friends” by American author Sally Seamans tells young students some smart ways to find friends.Sally says finding friendship is just like planting a tree. You plant the seed and take care of it to make it grow.First, you should choose a friend. What makes a good friend? It is not because a person has money or good looks. A good friend should be kind and patient. For example, if you have a bad day, a good friend should listen to your complaints(抱怨) and do their best to help. To make a friend, you cannot be too shy. You should make each other happy and share your lives.But things cannot always be happy. Even the best friends have fights. What should you do when you have a fight with your friend? You have to talk to them. When there is no one around, have an honest talk. If he or she doesn’t want to talk, you could write a letter.Sally says there are three steps to being friends again: Tell him or her how you are feeling; say what your friend has done wrong, and explain why you did this or that. The book also has advice on some small but important things like celebrating your friends’ success. Even if you haven’t had a real friend before, you will start to think of having one if you read this book. Because the book tells that friendship is the most important thing in your life.【1】The writer of the text really wants to tell us________.A.life is great if we have friendsB.an old sayingC.Sally Seamans is an American writerD.God’s way of taking care of us【2】“The Care and Keeping of Friends” is_______.A.the word of the GodB.a way of making good friendsC.the name of a book by SallyD.a story from a newspaper【3】A good friend should_______.A.have a lot of money B.have good looksC.be kind and patient D.listen to you【4】Good friends will_______.A.always be happy B.do their best to help youC.never do wrong D.not have a fight【5】What can’t you do if your good friend has done wrong?A.Write a letter to him or her.B.Have an honest talk with him or her.C.Tell him or her your feeling.D.Have a fight with him or her.