我的老师大学英语作文(精选23篇)

发布者:阿谷 时间:2023-9-20 00:02

我的老师大学英语作文(精选23篇)

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我的老师大学英语作文(精选23篇)

我的老师大学英语作文 1

Two secondary school teachers I remember show how different people can be though engaged in the same profession.

Mrs. Wang, my philosophy teacher, sent us to sleep less than ten minutes when she started talking in class. When a head nodded, she would point at the dozing student and made threatening remarks. She said that she was bored teaching us. Some students in her eyes had no desire to learn. But the other teacher Mr. Li always had bright eyes in a smiling face and encouraging words which showed that he loved Chinese history he was teaching and wanted us to love it too.

When it came to their attitudes to their students, they were different too. After Mrs. Wang finished her day’s lessens she felt that she had finished her job. Once when I asked her a question outside class about a term, she continued with preparation to leave and said that I could bring my question to class next week. Before I knew it she had put her keys into her handbag and walked out of the door. In the history class, however, a question even after the bell would still be given attention to by Mr. Li. He would rush to the board in a last minute attempt to clear up. Often he was seen with a number of students standing outside the classroom, discussing the day’s assignment.

Their methods of teaching were not like as well. Mrs. Wang stuck to the textbook and trained us how to memorize minute facts. However Mr. Li brought in films, maps, slides, tapes, anything that would help us learn. Once the whole class went to see the ’film Lin Zexu’ in order to better understand the history of the Opium War from 1840 to 1842.

Owing to these contrasts, I do not think I can forget either of my past teachers.

我的老师大学英语作文 2

Mr Shao taught me English when I was in Senior Three.With the bald head and hunchback, the fifty or some man distinguished himself from his counterparts in many ways.

He was so addicted to tobacco that he couldn`t even skip acigarette in the corridor at the interval between two classes. Due to the long time consumption of cigarettes, his teeth had gone totally bad and occasionally let off unpleasant smell which really disturbed us when we were talking to him. At times, he came to recognize it and consequently found out a solution. He suggested we write down our problems and he answer them in the written form. Although I knew all along that he was a careful man, his quotations of five different dictionaries on a single multiple choice problem was still beyond my wildest dream.

What`s more, none of us could imagine how excellent his ancient Chinese literature was. What he tended to do in his class was to recite several segments of the famous ancient prose and then put them into English. However, under the pressure of College Entrance Exam, the students didn`t seem to be so interested in his performance. Therefore, he tried to stimulate the class by editions of Times as prizes for answering questions. It worked on us instantly.

On the day of the entrance exam, he waited nervously with us out of the examination room. He kept reminding us not to drink water in case that we would feel like going to toilet during the exam. Not withstanding his constant claims that we students were far less important than his beloved daughter, we did feel his devotion to us.

我的老师大学英语作文 3

There was a man who in my memory, she is for us to irrigate water gardener, a candle light and illuminate the future for us, she is the head teacher of our class.

She, although the new teacher, but get along with her after a period of time, I think she is very concerned about to us. She sometimes serious, sometimes like a big sister, she has done everything for the sake of our future.

Once, in a language lesson of mulberry, almost the whole class "blasted pot", the teacher was very angry, we this, she was more angry, shouted: "you people, so love to talk, have skill will tell a story on! When I knew you, I know none of you will let me worry." When the teacher after the vent, also all letting the whole class immediately be utter silence, the teacher looked at the students were so afraid of her, and then said: "Im so sorry just now. Not the teacher is not good, but at this time, have a strict on elementary school students can grow up to have to attend, if I was harsh, that also have when he grows up. So, the teacher just now is very angry now, why are you so not obedient? In fact, you are very lovely child!" To treat the teacher say that finish, I felt very guilty, in fact, the teacher said is right, we are too presumptuous, want to get rid of the bad habit in the future.

我的老师大学英语作文 4

Is quiet in the classroom, only to hear "sand, sand, sand" of writing. And oh, the topic of watching, the tip has been for a few minutes on the paper. In a flash, I remembered the old teacher grade six.

The old teacher about fifty years old this year, temples have gray.

Older teachers dont like test, but likes to ask classmates in class. If the students answered correctly, further, he smiled, as if to listen to a beautiful lele, and write down on the score the scores, excited. Kindly said: "good! Out!" ; If the students answer deep enough, with concern said to him: "dont be nervous, sit down and think about, think again." Said, nodding. It seems every a nod will give the students a lesson.

The old teacher is teaching mathematics, he is very humorous in class. Remember, a lesson that

Lesson is about "bottom", the old teacher to be vivid, speak about it, the old teacher two legs a fork, right hand thumb and index finger, a double, then say to us: "the classmates, you see what is the action?" "Upside down!" "Yes, the bottom is the principle of the molecular and the location of the denominator transform each other." Understand all the places that we dont understand.

我的老师大学英语作文 5

Dong teacher, is very strict to us, from time to time for our physical education, and some of the teachers class, students in our class have some complaints.

But, at that time, we realise, dong teacher is the most hard and hard, one of the most serious teacher. One day, our vice President to the corridor make hygiene, but come back a bit late, was seen by passing a teacher, the vice President of the back, the teacher scolded by the vice President, vice President timid, seemed to cry, at this time, dong teacher immediately stand up and make the responsibility to yourself, my vice President to make the health, because they feel a little too clean, then let her in the scan. The teacher went out angry, at that time, dong teacher was stern and solemn face suddenly seem so tender, seemed unusually warm, dong teacher asked with concern: "monitor? What? Im sorry, this is the teachers mistake..." Vice President leng leng, bowed his head in shame, shook said: "all right, thank you teacher." Monitor of dong teacher nodded, "nothing good, sit down!" When talking about this matter, the monitor was thrilled, said that she wanted to cry, not wronged, but feel very happy, very satisfied with the teacher.

我的老师大学英语作文 6

I had many "if..." But now, I want to be a teacher.

If I were a teacher, I will not keep a straight face all day, let the students be afraid of me. Although is a strict teacher I, but I dont want to too. But also cannot too friendly, cannot let them run amok. Kind that two beings become one and five points and five points, can not only become a good friend of the students, and can become an excellent teacher.

If I were a teacher, I mustve shackled wont leave a lot of homework. Because, these simple repetitive work does not make sense, for the students.

If I were a teacher, I must let the students to know learning is a happy thing. Class, I use vivid humorous discourse interpretation of the text. Look! The platform, the pairs of small eyes desire knowledge was intently staring at me!

If I were a teacher, I will bring the students into the classroom of nature. Spring, I take them fly a kite and catch butterflies. Summer, I with they rowed the boat, catch dragonflies; In autumn, I take them pick the fruit, collect leaves; In winter, I take them snowball fights, make a snowman. I dont believe it, this kind of life, students write a composition will be nothing to write. I dont believe that childhood life, students will easily forget.

Ah! How I want to be a popular teacher.

我的老师大学英语作文 7

Monday to Friday we have Chinese classes every week, one of my favorite in all the teacher is language teacher, black hair, has bloodshot eyes, this is our Chinese teacher, Mr Zhang.

Remember once, next to my deskmate class and students passing notes, after found by the teacher, will open on see, all of the above is scold the teachers words, the teacher saw was not a bit angry, today, I go to the office on duty, go to the front of the teachers desk, see the teachers desk a lot of antiphlogistic medicine and cure cold medicine, in the afternoon, the first lesson is a language lesson, I have very good relationship with several classmates said: "on Chinese classes today, dont let the teacher shouted, called out, let the teacher thoroughly from class." The students agreed, class, the teacher in a soft voice, finished class, only a few male student performance is not good, ran to the front of the teacher, some students asked the teacher: "your disease better?" The teacher said, "much better, all in a couple of days."

The Chinese teacher of our class is like that, she is a kind and gentle Chinese teacher, she let us know what love is, let us more united, more up, continuous improvement, continuous efforts.

我的老师大学英语作文 8

The first English class in the first quarter, the door came in a medium height, the young woman with long hair. Next, at 20 s, less than or equal to 1 m 6. This is our English teacher! The man said, "said in front of you, my temper is bad!" A word really put us kills the whole class. The first impression: fierce!

Long time but finding, however, is not actually she said, its not what we thought.

She teaches English, use a few words of "modern language" from time to time. Although we also often say usually, but spoke from a teachers mouth, inevitably some surprise, distance suddenly disappeared, kindness increased immediately! Repeatedly emphasize things such as her, she will say: "all emphasized the 10 times", this also nothing important, eventually evolved into 100 times, N times; The progressive to N + 1 times. She gave us the first impression will be eliminated completely.

On night lessons, she will give us freedom, do homework, read a book, dont like math teacher came in and begun to talking, Chinese teacher holding a book to dictation. She always read some cant even read Chinese teacher of philosophy, touching article, sometimes read jokes, even if it is not good to laugh, she will be happy.

我的老师大学英语作文 9

My English teacher is a young lady. Her name is Kate. She looks beautiful. Her English is very good. She teaches us many things, and she likes to introduce foreign countries to us. She works very hard, because she likes teaching. I like her spoken English. She has good pronunciation and writing. All of my classmates like her.

我的英语老师是一位年轻的女士。她的名字叫凯特,看上去很漂亮。她的.英语很好,教了我们很多东西,而且她喜欢向我们介绍外国的国家。她工作很努力,因为她喜欢教书。我很喜欢她的口语,她的发音和书写都很好。所有的同学都喜欢她。

She was born for teaching and does a great jib. In her class, she can get her students involved in learning and doing exercises. They are attracted by the topics she gives and this makes her class lively. As a result, most students like to be in her class.

Li Xin is a good teacher not only because she has a good way of teaching, but also because she loves her students and never spoil them. She is kind and considerate, and is ready to help her students who meet with difficulties.

My teacher, Li Xin, is not only our good teacher, but also our best friend. We all like her and will remember her forever.

我的老师——李欣

李欣,23岁,新疆人,是一位年轻的中学英语老师,教书三年了。她身材苗条,长得秀气,脸上总挂着灿烂的笑容。

她天生就是教书的料。课上她能调动学生积极参与的兴趣。学生喜欢她给出的讨论话题,课堂气氛活跃。因此学生都很喜欢她的课。

李欣不仅教学方法不错,而且爱却不宠学生。她和蔼可亲,关心体贴,总热心帮助有困难的学生。

我的老师李欣不仅是我们的好老师,还是我们的好朋友,我们都很喜欢她并将永远记得她。

我的老师大学英语作文 10

In the midst of my teacher, my teacher, miss Yang is my favorite teacher.

Her class language accurate and vivid, tone cadence, emotional moving, on her lesson with a magnet attraction, Yang on my favorite Chinese class by the teacher.

Miss Yang shapely, round face, looks very kind. With a head of black hair, jiongjiongweishen eyes, extremely the beauty of the Oriental. She is the impression is particularly simple.

Remember once, Yang is on the teacher gave us the lesson "Sun Moon Lake". Yang said the teacher, please listen to me read it again, please imagine when I read the scene of Sun Moon Lake. Listen, we thought, as if they swim as teacher LangDouSheng in Sun Moon Lake, enjoy the clear and beautiful lake in water. Yang teachers vivid, each sentence every interesting gesture accurately, all painted out under Sun Moon Lake in front of us. Even the most naughty several students in the class, in with relish listen, thinking, imagine...

Yang teacher teaching Chinese is like this, she is always with emotion, to create a specific vivid situation, lead us to swim in the ocean of knowledge, to explore. My favorite teacher Yang language lesson.

我的老师大学英语作文 11

My favorite teacher is our head teacher, miss sun.

Miss sun was not tall, a black hair, a pair of bright eyes, and a mouth-talking mouth, which constituted our beloved miss sun.

Mr. Sun is the only male teacher in our school, and he is also a "humorist".

Remember once, the school no one in our class do not know, no one knows all the "little devil" - Wang Jiabo classmates, in the toilet with a grade three small classmate pants, the children come to our class, he told the sun teacher say: "teacher Wang Jiabo gathers up my pants are there in your class." "You go first," sun said. "I will criticize him." After a while, Mr. Sun gave the student a thought and political class, and he never dared to play with his classmate again. When other teachers criticized the students, they always said: you are wang. Our sun teacher said to us: they are all fake, we are the authentic wang jia bo. With the students of laughter, Wang Jiabo also convinced of my error in this laughter, behavior convergence, gradually he was thoroughly sun teacher gave in, become a good student in the class.

我的老师大学英语作文 12

I have read three places in primary school, these three places are the former primary school, the peak center primary school and the guangchang experimental primary school, which has taught me many teachers. Among these teachers, my most unforgettable is miss huang.

Miss huang is my Chinese and head teacher in sixth grade. She had black hair, a face that always smiled, and a clever handwriting of beautiful handwriting. She not only CARES about us very much, but also is very dedicated.

One thing I still remember.

At that time, when I was transferred to guangchang experimental primary school, miss huang was giving us a Chinese class, and I suddenly felt sick and couldnt help throwing up in class. Miss huang saw it and called my father while he was busy wiping his mouth. When I got better, my mother went to the school and took me to the hospital. Mom came to the school to see miss huang helping me wipe my mouth, touched by the side voice to miss huang thank you. Miss huang smiled and said to her mother, "this is what I should do, as long as the baby is ok." Ill never forget it for the rest of my life.

Because the teacher has a smiling face, she likes to laugh.

我的老师大学英语作文 13

My teacher has a lot of, but the title of "my favorite teacher" still belong to my Chinese teacher -- Xie Laoshi. Xie Laoshi is a female teacher, she has a lot of knowledge. Xie Laoshi face is beautiful: there are hidden under the long eyebrows, dark ruby eyes, high nose bridge here is a plausible mouth.

Remember once, when the school, I suddenly found himself on the watch is missing in the pen bag, hurry up. Just want to go with Xie Laoshi said, Liu Pingping urged me to ask home homework, then I said to her, "my watch is gone!" Then Xie Laoshi overheard, and try so hard to say to everybody: "Jiang Xinyue watch is missing, check each other between deskmate bag." I said, and is also returned to the seat. All of a sudden, Wu Xiangyu said to me: "I remember at noon when you put the watch in the pocket." Wu Xiangyu really touched my savior, my pocket, oh, my watch! He immediately said to Xie Laoshi: "Xie Laoshi, found!" Say that finish, many students are asking: "where to find it?" My classmates around then said: "in his pocket!" At that time, Im so sorry! But the teacher did not blame me.

我的老师大学英语作文 14

My Chinese Teacher Mr.WuMy Junior One Chinese teacher Mr.Wu likes to make us do home-work.When we leave Mr.Wus class,we hand in our homework.The next day,when we enter his class,our homework is on our desks.He does not need to tell us that he spent all night grading our home-work.

Mr.Wu is originally from Shandong.He is the first person in his family to go to university.After graduating,he started teaching at my high school.He has been teaching for over ten years now.He is tall and thin.His hair is always short.His glasses are thick.He doesnt like to drink,but he likes to smoke.Thats all I know about him.

He doesnt like to talk much.As a teacher,Mr.Wu is strict.No one dares talk in his class.He is also very serious.He never smiles,and when he talks,he is always brief.mr.wu works hard.He prepares his lessons well,and always returns our test paper and homework quickly to us.

One day,when I was in Senior Three,I ran into Mr.Wu.He asked me where I wanted to study for university I told him that I wanted to sturdy at Beijing Normal University to become a teacher.He nodded his head and then walked away.As he walked away.I saw the happy tears in his eyes.

我的老师大学英语作文 15

Teacher zhang like children naively laughed, his mouth with a row of neat white teeth, a few wisp of hair hung on the corners of the mouth, her little finger hook up lightly.

The new Chinese teacher is slender, light step, as graceful as a willow in March.

The teacher is medium height, round face, always with a smile. Different is dragging behind her was a great black braid, our classmates all call her braids teacher.

Teacher wang more speak more excited, pearly eyes blink blink ah.

See the teacher Chen that slightly gray eyes, penetrate the harsh glare, tightly staring at me.

Teacher wang delicate face with a pair of fine eyes, meet happy thing, a smile is narrowed down two lines; Her two slender eyebrows fell like two small brackets, particularly interesting.

White teacher watched it again and again when he saw the calculation results, suddenly suddenly eyes a bright, as if found something again, with a smile we asked again.

Teacher, you still remember I on the day of admission, is your smile get me into the campus, and you hug me in your arms, tell me to do an obedient boy. All this makes me feel you warm like my mother.

我的老师大学英语作文 16

I thank my teacher, because since I first grade teachers accompany in my side.

Fourth grade next semester at first, my study is not very good, after a few of my exam achievement is not good, I am a child of no staying power, also not serious to solve the problem. But the teacher didnt give up, I also talked with me, gave me a spiritual help, here I want to thank my teacher, the teacher lecture for us every day, lets learn something new, recently, the teachers temper is not very good, always angry, also we are not to blame, you dont always get mad, it is bad for your body.

The teacher I especially like to listen to your lecture. May be accustomed to it, you can lecture is fast, listening to others lectures is uncomfortable, but I think you all day and night so lectures for so many years, will be very tired ah, the body is good, what all good here, I want to thank my teacher. Thousands of words only my words, teacher I just small you are the gardener in my person to lead the way you are my first teacher is also my teacher forever.

The teacher I love you, you were laborious.

我的老师大学英语作文 17

A saying goes, teachers are gardeners, students are flowers of the motherland, under the care of the gardeners, flowers grow happily. Teachers are very important for students. They can have great influence on students.

First, I want to talk about the teacher who I hate. When I was in kindergarten, I was a carefree kid. The only thing I wanted to do was playing games; the only thing I did not want to do was studying. Because of that, I was not doing well at that time. Maybe it was for the reason why she did not like me. In my impression, she never smiled nor took care of me specially. For example, my score was low, she never counseled me. What impressed most was that once I came to school late, she let me stand in the doorway, until the bell rang. From childhood I always remember it now.

Forget it, forget the unpleasant memories of these. Next I want to talk about the teacher I like. When I was in junior high school third grade, I met a good teacher named Jiao Jin he. He taught us physics. Almost every class he made jokes with us. His class was full of laughter with warm atmosphere. He explained to us the life of the physical knowledge which broadened my horizon, and gave us the magic shows. The most deeply impression I remembered was that how to use a round rope through the neck form the back to the front directly. Under his education,

我的老师大学英语作文 18

My math teacher is miss wu. Is a young excellent teachers. Thirty, long fine eyes. High nose bridge on a pair of glasses, looks. Plane. She is not only to work conscientiously, and responsible for your work, the slightest dont careless.

Remember once and go to school textbooks to "measure", to survey in the local precipitation. Mr Wu personally ran to the observatory to understand, to help us collect accurate data. Although it is small, but her attitude towards work earnestly to let I admire. She is not only the work of conscientious and more considerate to us, make me touched very much.

Remember once, I dont know how, very excited. Class is not quiet down, in whispered together with her classmates. Mr Wu without looking at me, and I was poised to continue and cooing in the classmate, conspicuously ungrateful. Until the heart after school, the teacher called me to the corner. Repeatedly told me, when having a class carefully, just does not criticize you are afraid of you to lose face in front of classmates. Is so big, also the hypocrite. And I felt ashamed, and I feel very guilty. I want to say, thank you, teacher.

Is that you gave me a ruler of life, let us every day to measure, is you give me a mirror model, let me always have a learning example. I like your teacher, I amiable honorable good teacher.

我的老师大学英语作文 19

Our English teacher is a foreigner, oh, she"s a veritable canadians because she has the characteristics of the typical north American: golden hair, blue eyes, white skin. So always give a person a kind of visual aesthetic feeling.

Foreign teacher teach students also have their own saying: some classmate say she like a child, always in words and deeds with a childlike innocence; Some students said foreign teacher is a little like aliens, because her pronunciation, let us look at her lips mouth of big, like aliens.

These views are, of course, also can"t let we deny that she is a good teacher, she is kind, patient and to our teaching is also very lively, also often let"s play a little game, such as to the horse"s tail, guess the action and so on, do well, will award to our pencils, stickers, small gifts. Many students in our school to see her, will be scrambling to greet her, chat, it seems that people like her very much.

In a word, I like our teacher, she is our good teacher!

我们的英语教师是个老外,她可是个名副其实的加拿大人哦,因为她具有典型的北美人特征:金灿灿的卷发,碧蓝色的眼睛,白白的皮肤。所以总给人一种视觉的美感。

同学们对外教老师的也各有说法:有些同学说她象个孩子,言语和行动中总透着一种孩子般的天真;有些同学说外教有点像外星人,是因为她让我们看她嘴唇发音的时候,嘴咧的大大的,像外星人。

当然,这些观点也不能让我们否认她是个好外教,她亲切、耐心,给我们的.外教课也很活泼,还经常让我们玩一些小游戏,如给马贴尾巴啦,猜动作啦等等,做得好的,还会奖给我们铅笔、贴纸类的小礼物呢。我们学校很多同学见到她,都会争先恐后的跟她打招呼,聊天,看来,喜欢她的人还是挺多的。

总之,我喜欢我们的外教,她是我们的好老师!

我的老师大学英语作文 20

My English teacher surnamed tao, she has a pair of bright eyes and a lovely round face, there is a long braids. TaoLaoShi loves to laugh, no matter what, she will smile to our class. But she is strict to us.

Class, the teacher special attention to our pronunciation. Sometimes, because our pronunciation, a word to teach many times. Some students always not line, we are all worried about him, but TaoLaoShi dont worry, she patiently taught, a sound, a word, a sentence, until satisfied.

In order to let we can progress quickly, TaoLaoShi come up with a number of ways, in addition to after-school tutoring personally, she also let us classmates antithetical couplet, a help another, its okay, two people just ask an answer. So, wont someone to help, you will be the another time to review, both of them have the harvest. To remember more firmly, TaoLaoShi also often give we rehearse some small program, we play the small white rabbit, big tiger, and a lovely little bear, hate the Wolf, you learned in spirits.

Has an English section, the end of this month, we all want to show yourself well. TaoLaoShi more busy, she needed guidance, we hope everyone can we behave better. We have confidence one hundred times, looking forward to the arrival of that day.

I fall in love with English class, I love our English teacher -- TaoLaoShi more.

我的老师大学英语作文 21

She, tall, a pair of sharp and talking eyes, two ears. She has great concern for us, to teach us learning. She is my class teacher miss liang.

One day, Miss Liang is provide review. The classroom suddenly became in perfect silence. Only to hear the chalk "Shua" to write a nonstop. Suddenly, came the "buzzing" voice classroom, there are people in the clouds. Beam the teacher turned around, glancing over, stop at a place. The teacher in order not to affect the students, she looked at the student, as if to say: "attention, finish the question seriously, do not speak well!" The students realized at once, and immediately do. Look, Miss Liang "clairvoyance" and "clairaudient" really be worthy of the name.

Another time, my Chinese test is not ideal, and my heart is very sad. The teacher read my mind, he is writing on the blackboard "win without pride, this six word defeated". Beam the teacher to improve volume, explained: "we do everything to win without pride, do not lose heart failure. Although the unit test is not good, we try to do better next time!" After listening to the teachers words, I cheer up and listen to the teachers explanation, study hard, nquisitive.

Oh, teacher, your every act and every move are worthy of our respect for you, admire you.

我的老师大学英语作文 22

My English teacher surnamed Tao, she has a pair of bright eyes, a lovely round face, and a long tail. Tao teacher is very love to laugh, no matter what happened, she will smile to us. But she is strict with us.

In class, the teacher pays special attention to our pronunciation. Sometimes, because we are not allowed to pronounce, a word to teach a lot of times. Some students always do not work, we are anxious for him, but Tao teacher is not anxious, she patiently taught, a sound, a word, a sentence, until satisfied.

In order to let us can quickly progress, Tao teacher came up with a lot of ways, in addition to personal counseling after class, she also let the students to have a pair, one to help another, all right, two people on one question and answer. In this way, no one to help, will be more and more review, two people have a harvest. In order to remember more firmly, Tao teacher often gives us rehearse some small programs, we play a small rabbit, tiger, and the lovely bear, hate the wolf, we learn in the best of spirits.

The end of the month, we all want to have a good show of their own. Tao teacher is more busy, she is next to me to help us, we hope that each of our students can perform better. We are all confident, looking forward to the arrival of that day.

I fall in love with English class, I love our English teacher -- Tao teacher.

我的老师大学英语作文 23

i will never forget my first chemistry teacher. he was a little man with thick glasses, but he had a strange way of making his classes lively and interesting. and his lessons were not easily forgotten.i still remember one of my lessons from this teacher. after the students were all in the lab, the teacher brought out three bott[es. one was filled with petrol, one with castor oil and one with vinegar. "now watch carefully," said the teacher.

he then filled a cup with some of the petrol, some of the castor oil and some of the vinegar. as the students watched him quiet[y, he mied the three together. after that, he held up one of his fingers and showed it to the class. he then dipped it into the cup. after a few seconds he took his finger out. "now watch," he said. "remember, you must do every thing as i do."he put a finger in his mouth, tasted it and smiled, looking rather pleased. then he handed the cup around the class of students. each student dipped a finger into the miture and sucked it. instead of smiling, each of them made a face. the miture tasted terrible.

when the cup was at last returned to the teacher, he said sadly, "i m sorry, none of you watched carefully enough. yes, i sucked a finger, but the finger i put into my muth was not the one i had dipped into the cup."it was my first important lesson as a student of chemistry and i never forgot it.

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