1. Introduction

1. Small experiment

Before class, the teacher will bring you an experiment, but the teacher has a requirement: you must use a keen See with your eyes, listen with your wise heart, and think with your smart brain. OK? Well, please see that the teacher has filled some water in this sink. Here, there are two small bottles, one containing washing powder infusion and the other containing edible acid vinegar. Let’s take a look. Do these three liquids have colors? (No) Teacher, is there any way to make them change color? I first poured in the washing powder solution (to make the water in the sink red). This was not enough. The more magical thing is yet to come. I then poured in vinegar and used Stir evenly with a stick (returning the water in the sink to colorless.)

Teacher: From your "wow" sounds, the teacher knows that you have too many questions in your hearts. (The teacher writes on the blackboard: "?" Then who is coming? (Ask the question by name)

Teacher: You are really good children who are easy to ask questions and think well. As long as you are good at seeing problems from small and commonplace phenomena, Keep asking questions, keep solving doubts, and seek the source, and you will surely find the truth. (Writing on the blackboard: Truth) As a famous saying goes: "Truth is born after a hundred question marks." (Teacher, write it down, prompting "birth".

Teacher: If there are one hundred question marks, do you want to write one hundred?

Student: Don’t write so many. Hundreds represent many, many, many

Teacher: Yes, many, many, too many to count

2. Today we will go into the text "Truth" with the author Ye Yonglie "Students were born after a hundred question marks", maybe you can find the answer in the text and solve the questions in your mind.

(Reminder when reading the topic, do not feel procrastinated, be compact and clean)

2. First reading of the text, overall perception

1. Read the text silently and think about whether there is anything written in this article? If so, who is it about?

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The teacher patrols, and at 1-2 minutes, the camera praises and prompts students to make comments on the text. When the time is almost up, the teacher: Students, we must have a certain speed in silent reading in the senior grades!

(Under the teacher’s evaluation, the students made comments and read quickly.)

After learning, the teacher: Everyone did a great job. Not only can they read silently at a certain speed, but they can also do You can’t read without writing! This is a good way to learn while reading.

How are the students doing? Let’s check first. The situation of your students’ words.

2. Check the students’ words: bath, machine, rose, counterclockwise, field, commonplace, unique, discerning from the smallest details, pursuing the source,

⑴ Who is coming? Read it to everyone, read a word twice, correct the pronunciation while reading it, and then read it together

Teacher: Rose, pronounce the word softly, and read the first tone alone

After the teacher leads the students to read the words together

⑵ Understand the meaning of "no unique coincidence" and "see the subtle clues"

Teacher: What is "no unique coincidence" and "see the subtle clues"

Student: Although "coincidence" is rare, you can still find a pair.

Teacher: Is it true?

Student: One

Teacher : Even?

Student: Two.

Teacher: Although it is rare to see them alone, can you say something using this word? p>

Student 1: Professor Shepiro discovered the whirlpool of water, but the British chemist Boyle also discovered that violets can change color. This is really a coincidence.

Student 2: Although this is a gem, it is also unique.

Student 3: He is a glossy person, and I am also a glossy person. This is really a coincidence.

Teacher: Please observe that the word "no one has any coincidence" is very distinctive. Which one does "one" correspond to?

Student: Even

Teacher: Which one is opposite to “无”?

Student: Yes

Teacher: It’s very unique. Do you have similar words in your life?

Student 1: The sky is the limit, the fuss, the causes and consequences

Student 2: Ups and downs, bitter first and then sweet

Teacher: It seems that you usually have a lot of experience Accumulation, we say that only by accumulating can we make a lot of money! So what is another word called "seeing the smallest details"?

Student: You can predict the development trend of things when you encounter the signs of things.

Teacher: Scientists seeking the truth must have the ability to see the subtleties.

⑶ Focus on writing guidance: "ni" and "mechanical"

Teacher: There are two words in these words. The teacher wants to remind everyone, one is the word "mechanical" for mechanical,

On the right side of this word is a ring

Ask the students to take out their fingers and write with the teacher.

Teacher: There is also the word "inverse", which is a semi-surrounding structure. Please write it with the teacher. Have you remembered it?

Student: Remember it.

3. After reading, we obviously know that this text also has something to say. But have you noticed that the writing in this text is the same as the writing in our previous articles? Does it include vivid descriptions of language, actions, and expressions? (Student: No) Is there a storyline with ups and downs? (No) Yes, the article we are going to learn today is not a narrative but an article - (argumentative essay). The author, why he wrote this example, is to prove a point, read (topic). In order to prove this important point, what examples are written in the text? So let’s talk about whom and what we wrote about in order?

4. Nominated feedback, teacher’s camera writing on the blackboard (the vortex of the water changes color and the eyes turn)

Student 1: Professor Shepiro discovered that the direction of the rotation of the water vortex is related to the rotation of the earth.

Student 2: The British chemist Boyle discovered that violets turn red when exposed to hydrochloric acid, and eventually invented litmus paper.

Student 3: An Austrian medical student discovered that his son’s eye movements during sleep were related to dreaming.

The previous students summarized the three examples in the article in concise and accurate language. Although the phenomena discovered in the three incidents are different and the conclusions drawn are different, these three incidents all illustrate a point. (Student: Truth was born after a hundred question marks.)

Teacher: They are all good at seeing problems from small, commonplace phenomena, constantly asking questions, constantly solving doubts, pursuing the root cause, and finally Straighten "?" into "!" and find the truth. (Writing on the blackboard: horizontal lines and exclamation points)

5. What do the "?" and "!" signs here represent? What kind of process does "straightening" refer to? At this time, a big question mark has also appeared in your mind, so we will solve the question in your mind by studying the first example and straighten it into an exclamation mark.

3. Read the examples intensively and feel the spirit

1. (Look at the big screen) According to the table, let’s see what problems Professor Shepiro has seen from ordinary little things. How did he explore and what truth did he finally find? Next, students read the third natural paragraph freely and softly. You can find the answer from it.

Characters

Problems seen

Process of exploration

Truth found

Professor Shepiro< /p>

Many students can use their brains while reading, which is a good reading habit.

2. Feedback:

⑴What problem did Professor Shepiro see from the simple matter of taking a bath?

Student 1: "Every time...always..."

Teacher: Who can still read?

Student 2: Read "Every time...always..."

Teacher: Who else wants to read?

Student 3: "Every time...always..."

Teacher: Did you hear the accent on which two words she pronounced? The whole class reads it together,

Student: Every time, always

Teacher: Then I will read it together. What did you experience?

Student 1: Professor Shepiro has experimented many times.

Student 2: Professor Shepiro observes the things around him very carefully.

Teacher: From which word do you know that he observes carefully and because of what kind of eyes he has?

Student: Keen

He has to observe every time the bath water is thrown out, and he is very attentive to learning about life. Yes, quote: "In the winter when drops of water turned into ice, Professor Schepiro observed quietly, and he discovered——; When in the summer when the sun was scorching, he observed quietly, and he discovered——; Day after day, year after year For a year, he observed quietly, and he discovered that——"

Teacher: Observed every time, and the situation observed every time was the same. Professor Shepiro sees problems from ordinary phenomena (random writing on the blackboard: spotting problems) and is able to predict the causes of phenomena... This is the ability to see the subtle changes. Why is the situation the same every time we observe it? A big question mark arose in Professor Shepiro's mind.

⑵How will he solve this question next? How did he do it?

Student: Schepiro clung to this question mark and conducted repeated experiments and research.

⑶The teacher showed this sentence on the slide and asked: Now use your imagination. Who can say how this Shepiro conducted repeated experiments and research?

Student 1: He conducts experiments and research at different times, maybe in the morning, in the evening, or even in the middle of the night.

Student 2: He may do experiments in hot summer, or he may do experiments in cold winter.

Student 3: He should have conducted different experiments in different places. He has been to the southern hemisphere of the earth, the northern hemisphere and the equator

Teacher: How do you know? Do you Going out with Shepiro?

Student: The book says that he thinks——

Teacher: He is very good at connecting the contents of books and reading. He knows from books that he may have been to the northern hemisphere. , may have been to the Southern Hemisphere, and may have been to the equator.

Teacher: Classmates, what I just said shows that you have rich imagination, and I also see that Shepiro has indeed worked hard to carry out repeated experiments and research.

Teacher: Please read this sentence again. (Read the sentence by name) Did the students hear what word he emphasized when he read this sentence just now?

Students: Repeat

Read it as a class.

Teacher: Shepiro conducted repeated experiments and research in different places, at different times, assuming different situations. In fact, we connect the context and know that this sentence explains which word in the second paragraph means< /p>

Student: Looking for the source (the teacher writes on the blackboard at random)

⑷Yes, after repeated experiments and research, he finally straightened "?" into "!" and found the truth. (Random writing on the blackboard: Found the truth)

In 1962, he published a paper and put forward his own opinions. Who will read it?

Read the text by name

Teacher: He ran around day and night and carried out repeated experiments and research unremittingly. He finally found the completely correct conclusion that the vortex is related to the earth and its rotation. This is verified - quote "Truth is born after a hundred question marks".

⑸Through the study just now, do you now understand the meaning of the question mark and exclamation mark in the second natural paragraph?

Student 1: “?” means discovering problems and constantly asking questions;

Student 2: “!” means solving questions and discovering the truth through exploration;

Teacher: What do the question marks and exclamation marks in this matter refer to?

Student 3: The "?" here refers to Professor Shepiro's discovery that every time the bath water is drained, the vortex of the water always rotates counterclockwise. why is that?

Student 4: The "!" here refers to Professor Shepiro's discovery that the direction of water vortex rotation is related to the rotation of the earth. Teacher: You see, this metaphor describes Professor Shepiro's process of identifying problems from the whirlpool of bath water and finding the truth through exploration in a vivid and vivid way, which left a deep impression on us. impression.

3. Shepiro’s process of turning question marks into exclamation points was difficult. What kind of spirit do you feel from him? Who can tell. (Random blackboard writing: Perseverance)

Student 1: I feel his perseverance.

Student 2: Good at asking for answers.

Student 3: Perseverance.

Student 4: The spirit of pursuing the roots.

Teacher: Yes, Shepiro’s careful observation of student life, his perseverance, and his spirit of pursuing the root of things deeply shocked us.

3. Expansion and extension:

Not only Professor Shepiro’s discovery is like this, but in fact, we ourselves have made similar discoveries and explorations in our student life. Can you tell us your discovery story?

Requirements:

1. Speak clearly in the order of "discovering the phenomenon" - "how to explore" - "...".

2. The voice is loud and clear, and the expression is smooth.

3. Express your true feelings appropriately

Talk to each other at the same table first

Name the whole class to communicate

Student 1: My family has a big white goose, and my mother asked me to drive it away. I found that when it came out of the water, its feathers were not wet. I was very puzzled. When I got home, I asked my mother why. My mother asked me to find it from "One Hundred Thousand Whys". Later, I learned that when a goose encounters water, its feathers will secrete oil, which prevents water from entering and flows down along the feathers.

Teacher: You speak very clearly and can express your true emotions when you encounter difficulties.

Student 2: Once my mother asked me to buy eggs. When I came back, I found something dirty on the eggs, so I took water to wash them. My mother said not to wash it, as it would easily break. I was confused as to why it was broken. Mom said if you want to know, just explore it yourself.

I went to read "One Hundred Thousand Whys" and it said that there is a protective film on eggs. Once washed off, bacteria can easily enter the eggshell, so the eggs are easy to spoil. From this, I feel that the truth is not far away, but that we have to explore the truth.

Teacher: I think you will become a scientist like Professor Shepiro in the future.

Student 3: One day, my mother came back from the market and bought a lot of fruits. I was going to eat apples at first, but then I changed my mind and started eating mangoes. I just put the apples away without knowing where they were. After a while, my mother remembered that she had bought potatoes that time and forgot to eat them. We thought they would sprout. So we found the potatoes, but what we didn't expect was that the potatoes were fine. When we were wondering, we found that the apple I dropped last time was lying here. I wonder if the potato's failure to sprout has something to do with the apple? So I searched online and found out that apples release a type of ethylene that inhibits the germination of potatoes.

Teacher: From your eyes, I feel the joy of exploration.

4. Summary: You are all children who love to explore, able to see the subtleties, get to the root of things, and discover secrets that others have not discovered. The 40 minutes passed quickly. Through the study of this class, we not only felt Professor Shepiro's ability to see the smallest details, admired his pursuit of the root cause, perseverance in scientific spirit and rigorous work attitude, but also learned the author's use of each word. Be specific (the teacher refers to "examples" written on the blackboard) to prove your point of view and let the facts speak for themselves.

Facts speak louder than words. Listing examples is the best, most common and most effective method. Everyone must learn it and use it.