C．A kindergarten teacher.

　　D．A primary school teacher.

　　D　[推理判断题。根据第一段第一、二句"...a family visited the school where I taught...，send their deaf daughter to my school as a first grader."可知D项正确。]

　　B

　　Here's something to think about the next time you ask your teacher for help: trying hard to do schoolwork on your own can help you learn.According to a recent study, the more you try while you are learning new information, the better you can remember it later.

　　This might surprise you.When teachers are presenting new information, they often give students lots of help.But a new study shows this may not be the best way to support learning."Don't be too quick to get help when learning something new，" educational expert Manu Kapur said."Try to work on it yourself even if it means trying different ways."

　　Kapur came up with the idea that trying hard can lead to better learning.Then he tested it out on students in Singapore.He separated students into two groups.In the first group, students were asked to solve maths problems with the teacher's help.In the second group, students were asked to solve the same problems by helping one another, instead of getting help from the teacher.

　　With the teacher's help, students in the first group were able to find the correct answers.Students in the second group did not solve the problems correctly.But they did come up with a lot of good ideas.

　　The students were then tested on what they had learned.The group without any help from a teacher scored much higher than the group who had help.Kapur said working to find the answers helped students understand the process(过程)，not just the solution.

　　Kapur's advice for kids is to put a lot of effort(努力)into learning something new rather than going to your teacher for help."Simply doing a little work or nothing at all won't work，" says Kapur."Try to solve a problem in as many ways as possible."

【语篇解读】　学生遇到问题当然想着去问老师。而教育专家Kapur却坚持让学生独自解决难题。