There are only two or three thousand commonly used characters in Chinese characters, and generally no one mispronounces them. If you have been out of school for many years and encounter some words that are not commonly used or obscure words, it is inevitable that you will mispronounce them. Some people will laugh at themselves and say, I just gave back what I was taught in school to the teacher. In fact, people's memories are limited, new things enter the brain, and some long-used information fades in the brain, who can not return something to the teacher. 
There is a joke about mispronunciation in the Qing Dynasty's "Xi Tan Lu", which you may have heard. It is said that the position of a county official in the Qing Dynasty was bought for money, and he didn't know a lot of words. One day, the county official ascended to the court to decide the case, and the list submitted by the master read: Plaintiff Yu Gonglei, defendant Qi Bian Diu, and witness Xincaul. The county magistrate called the plaintiff's name and called, "Come up!" The servants listened and went to the hall together. The county magistrate said angrily: "What are you all doing here? My name is the plaintiff! The master laughed and said: "The plaintiff's name is pronounced in another way, called Yu Gonglei." The county magistrate asked the plaintiff and called the defendant's name: "Go down!" They had no choice but to retreat together. The master hurriedly said: "The defendant's name is also pronounced in another way, called Qi Bian Diu." When the name of the witness was read, the county magistrate hesitated for a moment and asked the master, is there another way to pronounce these two words? The master said yes, read the new cauldron. The county magistrate turned his anger into joy and said with a smile: "Fortunately, I asked you, I almost called him my father!" ”
Jokes are jokes, and when they see words they don't know in life, people often make a trick and don't know what to read, so they gnaw half a word and read it. Not to mention, the odds of being right are not low. Even if you read it wrong, it doesn't hurt in ordinary situations. However, teachers should do their best to avoid mispronouncing words in class. Even if you mispronounce the tongue and correct it yourself, it's nothing, who can not make a mistake. If you don't care, some students will help correct it. If the teacher has always been unsure about the pronunciation of a certain Chinese character, and has not checked the dictionary, and the mispronunciation is corrected by the student, then it depends on the strength, and some teachers may not accept it with an open mind, but are embarrassed and angry, feeling that the student has embarrassed him (or her) in public, causing unhappiness between teachers and students. 
In 1950, "People's **" once issued a newsletter on this issue, entitled "Don't give nicknames to words!" The author of the article should be an educator, he said, he knows a teacher comrade (teacher), never prepare for class, and later talked about it, the other party said: "Teaching a hairy child also uses preparation class, I don't know the words, and I asked the students to check it first in class, and the problem was solved." "At that time, after all, it was still the beginning of the founding of the People's Republic of China, and all walks of life were in the initial stage, and the teaching work was not strict enough. The corresponding author asked the teacher again, what if the student asked you? The other party said: "That's very simple, just tell the students: now implement self-study tutoring, check the dictionary by yourself, memorize it well, and don't just rely on the teacher." After that, he also talked about a previous incident, once in class, he pronounced the word "荼" as "tea" in "in full swing", and the students said: "Teacher, it's not tea, it's more than tea!" ”
The teacher checked the dictionary and found that he had mispronounced it, but he was afraid of being embarrassed and lowering his prestige, so he claimed to the students: "It's not that I pronounced it wrongly, it's that this word has two sounds, and the teacher taught me to pronounce tea when I was in school." "That's it. The speaker has no intention, but the listener has the intention. The corresponding author denounced in the newspaper: "This kind of teaching method is extremely dishonest and irresponsible, and it is not the work attitude that a people's teacher should have. The article also cites other examples, some teachers do not recognize the words clearly, do not look up the dictionary, and make mistakes, such as the cruel "cool" as "hao", the washing as "zhai" or "yao", the evil as "jun", the birth as the extension of life, and so on. 
At the end of the article, it is said that the work attitude of these teachers is not right, and they do not seek to understand much, and hope that they will check the dictionary and ask more people, and do not make mistakes and give words "nicknames", otherwise they will be mistaken children. The situation that was said in the newspapers 70 years ago is far less serious now, but it is still there. Some teachers are particularly disgusted with students correcting misspellings because of face problems. In fact, it is not necessary, it is not that the teacher does not know the pronunciation of a certain Chinese character, and the knowledge is not as good as that of the student, but the students who can pronounce it correctly usually just happen to know the word, and the subject they learn is still far from the teacher. Teachers who encounter this situation may wish to revisit Han Yu's "Shi Shuo", "My teacher is also Taoist, and Fu Yong knows that he was born in Wuhu?" Therefore, there is no noble or low, no long and no less, the Tao exists, and the teacher exists. "As long as you calm down and admit your mistakes generously, students will respect their teachers more.