My name is Lwazi Nzimande. I started my schooling at Thukeyana Primary Farm School in Underberg,

4. C    5. B    6. D    7. C
【解析】
这是一篇记叙文。文章讲述了，为什么Miss Dube是作者小学阶段最喜欢的老师。
【4题详解】
推理判断题。由第二段中的“She used pictures, diagrams (图表) and other things to make learning easier and more unforgettable, moving at a pace that was suitable for all students. As a teacher, she showed patience, respect, open-mindedness, and reliability (可靠性). Now you see why she was my favourite teacher in primary school, don't you?”（她用图片、图表和其他东西使学习更容易、更难忘，以适合所有学生的节奏。作为一名教师，她表现出耐心、尊重、开放和可靠。现在你知道她为什么是我小学最喜欢的老师了吧？），可推断出作者喜欢Miss Dube是因为她的教学风格和性格。故选C项。
【5题详解】
细节理解题。由第三段中的“An open-minded teacher will go beyond what is found in the textbook.”（一个思想开明的老师会超越课本上的内容），可知一个思想开明的教师不会局限于课本，会讲课本以外的东西。故选B项。
【6题详解】
推理判断题。由第四段中的“Miss Dube often told us not to bad­mouth or make fun of others. She also did so. She never bad­mouthed other teachers in front of us. Also, Miss Dube never made fun of her learners.”（Miss Dube经常告诉我们不要说坏话或取笑别人。她也这么做了。她从不在我们面前说其他老师的坏话。而且，杜贝小姐从不取笑她的学生），可推断出Miss Dube以身作则，不说其他老师坏话，也不取笑学生，给学生树立了一个好榜样。故选D项。
【7题详解】
指代猜测题。由最后一段中的“Miss Dube was also very honest.”（Miss Dube也很诚实。）和“If she didn't have an answer to a question, she would let her learners know.”（如果她对一个问题没有答案，她会让她的学习者知道），可推断出This指Miss Dube在学生面前很诚实一事。故选C项。