When I was growing up in America, I was ashamed of my mother's Chinese English. Because of her English, she was often treated unfairly. People in department stores, at banks, and at restaurants did not take her seriously, pretended not to understand her, or even acted as if they did not hear her.
My mother has realized the disadvantages of her English as well. When I was fifteen, she used to have me call people on phone to pretend I was she. I was forced to ask for information or even to yell at people who had been rude to her. One time I had to call her stockbroker. I said in a voice that was not very convincing, "This is Mrs. Tan." And my mother was standing beside me, whispering loudly, "Why he doesn't send me the cheek. It's already two weeks late."
And then, in perfect English I said: "I'm getting rather anxious .You agreed to send the check two weeks ago, but it hasn't arrived."Then she talked more loudly. "What does he want? I'll come to New York and say it in front of his boss."And so I turned to the stockbroker again, "I can't accept any more excuses. If I don't receive the check immediately, I have to speak to your manager when I am in New York next week."
The next week we ended up in New York. While I was sitting there red-faced, my mother, the real Mrs. Tan, was shouting to his boss in her broken English. When I was a teenager, my mother's broken English embarrassed me. But now, I see it differently. To me, my mother's English is perfectly clear, perfectly natural. It is my mother tongue. Her language, as I hear it, is clear and direct. It was the language that helped me form the way I saw things, expressed ideas, and made sense of the world.
【小题1】Why was the author's mother poorly treated?

【小题2】From Paragraph 2, what can we know about the author?

【小题3】What does the author think of her mother's English now?

【小题4】What can we infer from the passage?

【小题5】What is the best title of the passage?

    曾国藩说，读书看书不同，“看者如攻城拓地，读者如守土防隘，二者截然两事，不可阙，亦不可混。”读书道理，本来如此。曾国藩又说：读书强记无益，一时记不得，丢了十天八天再读，自然易记。此是经验之谈。今日中小学教育全然违背此读书心理学原理，一不分读书，看书，二叫人强记。故弄得学生手忙脚乱，浪费精神。小学国语固然应该读，文字读音意义用法，弄得清清楚楚，不容含糊了事。至于地理常识等等，常令人记所不当记，记所不必记，真真罪恶。譬如说，镇江名胜有金山，焦山，北固山，此是常识，应该说说，记得固好，不记得亦无妨，以后听人家谈起，或亲游其地，自然也记得。试问今日多少学界中人，不知镇江有北固山，而仍不失为受教育者，何苦独苛求于三尺童子？学生既未见到金山，北固山，勉强硬记，亦不知所言为何物，只知念三个名词而已。扬州有瘦西湖，有平山堂，平山堂之东有万松林，瘦西湖又有五亭桥，小金山，二十四桥旧址，此又是常识，也应该说说，却不必强记。实则学生不知五亭桥，万松林为何物，连教员之中十九亦不知所言为何物。今考常识，学生曰，万松林在平山堂之西，则得零分，在平山堂之东，则得一百分，岂不笑话？卫生一科，知道人身有小肠大肠固然甚好，然大肠明明是一条，又必分为升结肠，横结肠，降结肠，又是无端添了令人强记名词，笑话不笑话？弊源有二：一教科书编者，专门抄书，表示专家架子。二教员不知分出重轻，全课名词，必要学生硬记。学生吓于分数之威严，为所屈服，亦只好不知所云的硬记，由是有趣的常识，变为无味的苦记。殊不知过些时候，到底记得多少，请教员摸摸良心自问可也。何故作践青年精神光阴？

纳米材料被誉为2l世纪最有前途的新型材料，纳米碳管是一种由碳原子构成的直径为几个纳米(符号nm，1nm=10^-9m)的空心管。下列说法中错误的是（）