It is common to believe that learning just takes place in school, but much of human learning happens outside the classroom, even from birth and people continue to learn throughout their lives.
Even before they enter school, young children learn to walk, to talk, and to use their hands to use toys, food, and other objects. They use all of their senses to learn about the sights, sounds, tastes, and smells in their environments. They learn how to communicate with their parents, grandparents, siblings, friends, and other people important to their world. When they enter school, children learn subjects like reading, writing, and maths. They also continue to learn a lot outside the classroom. They learn which behaviors are likely to be rewarded and which are likely to be punished. They learn social skills for communicating with other children. After they finish school, people must learn to deal with many changes that affect their lives, such as getting married, raising children, and finding and keeping a job.
Because learning continues throughout our lives and affects almost everything we do, the study of learning is important in many different fields. Teachers need to understand the best ways to educate children. Scientists, social workers and other human service workers need to understand how certain experiences change people’s behaviors.
Learning is closely related (相关的) to memory, which is the storage of information in the brain (大脑). Scientists who study memory are interested in how the brain stores knowledge, where this storage takes place, and how the brain later offers knowledge when we need it. However, scientists who study learning are more interested in behavior and how behavior changes as a result of a person’s experiences.
小题1:The underlined word “siblings” in Paragraph 2 probably means _________.
A．teachers
B．classmates
C．doctors
D．brothers or sisters小题2: When do children begin to know to behave well according to the passage?
A．After they go into society.
B．Before they enter school.
C．When they are at school.
D．Before they are born.小题3:Which of the following is WRONG according to the passage?
A．As a matter of fact, learning begins at a person’s birth and last the whole life.
B．Teachers need to understand the best ways to educate their students.
C．People need to understand how certain experiences change their behaviors.
D．Social workers need to study how experiences affect people’s thoughts.
6CaSiO3＋P4O10 10C＋P4O10
＋I2
＋2I－在一定体积的某维生素C溶液中加入a mol·L－1 I2溶液V1mL，充分反应后，用Na2S2O3溶液滴定剩余的I2, 消耗b mol·L－1Na2S2O3溶液V2mL。该溶液中维生素C的物质的量是___________mol。
＋5
＋2H＋
＋H2O生成的碘可以用淀粉溶液检验，根据反应溶液出现蓝色所需的时间来衡量该反应的速率。某同学设计实验如下表所示： 
Ce3＋＋