题目

用括号中注明的方法分离下列各组混合物，其中不正确的是（）     A．                                 氮气和氧气（液化蒸馏）  B． 食盐中的沙砾（溶解过滤）     C．                                 氢氧化铁胶体和水（过滤） D． 花生油和水（分液） 答案：考点：  物质的分离、提纯的基本方法选择与应用． 专题：  化学实验基本操作． 分析：  分液是分离互不相溶的两种液体的方法； 蒸馏把互相溶解但沸点不同的两种液体或将水中难挥发性物质和水分离出来； 过滤是分离液体和难溶性的固体的一种方法． 解答：  解：A、氧气的沸点比氮气的沸点高阅读理解。      Parents often say,"I don't understand why my child is acting this way.We've given him everything in the world,and he just wants more.He's never happy.He doesn't enjoy what he has."     For some reason,we often feel that if we give our child everything he wants to keep him happy,he should behave the way we want him to.An important part of meeting children's emotional(情感的)needs is to set limits often and firmly in a loveing way.Pardnts who learn to set limits in a loving way set them more often because they don't have to wait until they've "had it up to here" to do so.     A therapeutic(治疗的)way of setting limits is called ACT:Acknowledge the feeling,communicate the limit,and target the choice.Necessarily,you're saying to the child,"I understand how you feel.It's OK to feel that way,but you can't act that way when you feel like that.You can act this way when you feel like that." It's also important to communicate this message in a loving way,not an angry way.     Using ACT limitsetting teaches children to cope with their emotions and to find appropriate behavioral expressions that don't hurt the children themselves.It can also be used to teach children to delay gratification(满意)．Here are some examples of how it works.If your child wants a toy when you're at the store and you don't want to buy it,you can say,(A)"You love that toy and want it right now,(C)but we're not spending any money on toys today.(T)You can put it on your wish list for birthday or Christmas."Using this technique,you'll learn to set reasonable limits that work.If you set limits too severely,you'realso more likely to give in,because you feel guilty.If you don't follow through with a consequence or you make one that's too severe,you teach your child not to trust you.     Parents often say,"I don't understand why my child is acting this way.We've given him everything in the world,and he just wants more.He's never happy.He doesn't enjoy what he has."For some reason,we often feel that if we give our child everything he wants to keep him happy,he should behave the way we want him to.An important part of meeting children's emotional(情感的)needs is to set limits often and firmly in a loveing way.Pardnts who learn to set limits in a loving way set them more often because they don't have to wait until they've "had it up to here" to do so.     A therapeutic(治疗的)way of setting limits is called ACT:Acknowledge the feeling,communicate thelimit,and target the choice.Necessarily,you're saying to the child,"I understand how you feel.It's OK to feel that way,but you can't act that way when you feel like that.You can act this way when you feel like that." It's also important to communicate this message in a loving way,not an angry way.     Using ACT limitsetting teaches children to cope with their emotions and to find appropriate behavioral expressions that don't hurt the children themselves.It can also be used to teach children to delay gratification(满意)．Here are some examples of how it works.If your child wants a toy when you're at the store and you don't want to buy it,you can say,(A)"You love that toy and want it right now,(C)but we're not spending any money on toys today.(T)You can put it on your wish list for birthday or Christmas."Using this technique,you'll learn to set reasonable limits that work.If you set limits too severely,you're also more likely to give in,because you feel guilty.If you don't follow through with a consequence or you make one that's too severe,you teach your child not to trust you. 1.The first paragraph is mainly to show that _____.A. parents can't get along well with childrenB. children's emotions are hard to meetC. parents don't understand children at allD. children are the real burden to parents2. As parents,once we give children what they want,we hope that _____.A. children learn to share it with usB. children act the way we want them toC. children should be thankful to usD. children should still do what they like3. Which of the following is C in using ACT technique to deal with a child whose sister refused to play      with him?A. Tom,I know you want to play with Lucy.B. You can play with her tomorrow.C. But Lucy has to do her homework now.D. Tom,you shall not disturb Lucy.4. According to the text,when using ACT technique,we should _____.A. use it in a loving wayB. behave very seriouslyC. make efforts to be angryD. try to make children satisfied5. What's the main idea of the text?A. The relationship between children and parents.B. The advantages of ACT technique.C. The way to deal with children.D. The introduction of ACT technique.