题目

下列实验操作中错误的是（） A . 检验氧气 B . 熄灭酒精灯 C . 铁丝在氧气中燃烧 D . 测定空气中氧气的含量 答案：CIn a US city, a woman parked her car in an attended lot. Hoping to get a discount on the cost of parking, she asked, “Do you give validation(批准)?”“Certainly,”replied the store's manager:“You are an excellent person and I love your hair.” That might be worth the cost of parking．I mean，who wouldn't pay a couple of dollars for this kind of validation? Author Alan McGinIlis cites an interesting study about the power of positive encouragement．A second-grade teacher complained that her children were spending too much time standing up and roaming around the room rather than working． Two psychologists observed the behavior of the children and the teacher. Every ten seconds they noted how many children were out of their seats. They counted 360 unseated children throughout each 20-minute period．They also noted that the teacher said "Sit down!" seven times during the same period． The psychologists tried an experiment．They asked the teacher to tell the children to sit down more often. This time they noted that she commanded her students to sit down 27.5 times in an average 20-minute period, and now 540 were noted to be out of their seats during the same average period．Her increased scolding actually made the problem worse． Then the experimenters tried a different task．They asked the teacher to quietly praise those children who were seated and working．At this time, children's roaming was decreased by 33％．They showed their best behavior when they were praised more and blamed less． People who motivate others to take great action are almost always those who encourage more than criticize; who praise more and blame less. Perhaps the woman's question is the correct one after all．"Do you give validation?" I hope I can always answer “YES”.【小题1】When parking her car in an attended lot, the woman ________.A．made a very silly mistakeB．was laughed at by the managerC．got great praise from the managerD．failed to pay the cost of parking at last【小题2】The students in the study performed better mainly because_______.A．they were motivated by the psychologistsB．they were inspired by the teacher's attitudeC．they regretted roaming around the classroomD．they changed their relationship with the teacher【小题3】 In the passage, the author thinks that_______.A．it is better to blame others than to praise othersB．sometimes it's hard to receive praise from othersC．criticizing children does no good to their growthD．we all know how to encourage others by praising【小题4】 Why does the author talk about the study in the passage?A．To show the power of encouragement.B．To show how the teacher praises children.C．To show his argument is scientifically based.D．To show the teacher is a successful motivator.【小题5】What is the author's attitude towards giving validation?A．NeutralB．NegativeC．PositiveD．Reasonable