The painter hangs his or her finished painting on the wall for everyone to see.

It ... The composer wrote a work, but no one could hear it before playing it.

Professional singers and actors have a great responsibility because

Composers depend entirely on them. A student studying music needs as long as possible.

As a medical student, becoming an actor requires hard training.

Become a doctor. Most training is related to technology, because

Musicians must have the muscular proficiency of athletes or ballerinas.

Dancer. Singers practice breathing every day because their vocal cords will

It is not enough without controlled muscle support. String players practice

When pulling the bow, move the fingers of the left hand up and down.

The right arm swings back and forth-two completely different movements.

Singers and instrumentalists must be able to blend in perfectly with each note.

Tune. Pianists don't have this special anxiety, because the notes are

Already there, waiting for them, this is Piano tuner's responsibility.

Tune them up. But they have their own difficulties.

The hammer that strikes the strings must be coaxed into making no sound.

Just like percussion, every overlapping tone should sound clear.

Obtaining clear texture is a problem that students face.

Conductor: They must learn to understand every note of music and how it is played.

There should be sounds, and they must control them.

Enthusiastic but selfless authority.

Skills are useless unless they are combined with musical knowledge.

And understanding. Great artists are those who are so familiar with art.

The language of music, they can enjoy anything written in the performance works.

Century.

0 1 music language

The painter hung the finished work on the wall for everyone to see. The composer has finished writing a work, so it's up to him.

Only when the performer plays can others enjoy it. Because composers are so completely dependent on professional singers and professional performers, professional singers and professional performers shoulder a heavy burden.

A music student who wants to be a performer needs long-term rigorous training, just as a medical student wants to be a doctor. Most training is technical.

Musicians' proficiency in muscle control must reach the level of athletes or ballerinas. Singers should practice hanging their voices every day, because if they can't control their muscles effectively, their voices will be broken.

The band doesn't meet the singing requirements. String players practice sliding up and down with the fingers of their left hand at the same time.

Draw the bow back and forth with your right hand-two completely different movements. Singers and instrumentalists must make all the notes exactly the same and in harmony. Pianists don't have to worry, because every note is already waiting for them.

It is Andhadhun's duty to tune the piano. But Andhadhun also has their own difficulties: they must patiently adjust the hammers that strike the strings and not let them.

The sound made by a hammer is like a percussion instrument, and every overlapping sound must be clear. How to get clear movement texture

For student commanders, this is a problem: they must learn to understand every sound in music and how to pronounce it. They also

We must devote ourselves to controlling these banknotes with enthusiasm and objective authority. Simple skills are useless unless combined with knowledge and understanding of music.

The greatness of artists lies in their familiarity with music language, so that they can interpret works written in any era with joy.

& gt02 School Education and Education

In America, it is generally believed that schools are people.

To get an education. However, it is said that today

The children interrupted their education to go to school. distinguish

The relationship between school education and education implied by this sentence is important.

Education is more open and inclusive than school education.

Education has no boundaries. It can happen anywhere, whether in

When taking a shower or working, whether in the kitchen or on a tractor. It includes

Formal learning in school and the whole

The world of informal learning. Education agents can learn from

Respected grandparents

People debate politics on the radio, from children to celebrities.

Scientist.

School education is predictable, but education is often.

Create surprises. A casual conversation with a stranger may make a person

To find out how little people know about other religions. People are engaged in

Education from infancy. Therefore, education is a very extensive and inclusive.

Terminology This is a lifelong process, a process that begins long before it begins.

This should be an indispensable part of a person's whole life.

On the other hand, school education is a specific and formal process, which

From one setting to the next, the general mode changes little.

Throughout the country, children are around

At the same time, sit in the designated seat and be taught by an adult, using similar

Textbooks, homework, exams, etc. Fragments of reality

It is necessary to learn, whether it is the alphabet or the understanding of letters.

The operation of the government is usually limited by the border.

The subject being taught. For example, high school students know that they are

It is unlikely to find out the truth of political problems in class.

Or what the latest filmmakers are trying.

There are certain conditions in the formalization process of.

Go to school

Go to school and receive education.

In America, people usually think that going to school is to get an education. But now some people think that children's schooling interrupts their education. The difference between going to school and receiving education is very important in this concept.

Compared with going to school, education is more open and extensive. Education is not subject to any restrictions. It can be done in any situation, in the shower, at work, in the kitchen or on a tractor.

It includes both formal education in schools and all informal education. People who impart knowledge can be respected elders, people who have political debates on the radio, or children.

It can also be a famous scientist. Going to school is somewhat predictable, and education can often bring unexpected discoveries. Casual conversations with strangers may make people realize that they really know little about other religions.

People are educated from an early age. Therefore, education is a word with rich connotations, which accompanies people's life from beginning to end and begins long before they go to school.

Education should be an indispensable part of life. However, going to school is a specific formal process. On different occasions, its basic form is similar. All over the country, children are almost in the same place.

Arrive at school at all times, sit in the designated seats, be taught by adults, use roughly the same textbooks, do homework, take exams and so on.

What they learn in real life, such as the alphabet or the operation of the government, is often limited by the scope of the subject.

For example, high school students know that they can't find out the true feelings of their community's political problems in class, and they won't know what the latest filmmakers are trying.

There are specific restrictions on the formal process of school education.

& gt03 Definition of "Price"

Price determines how resources are used. They are also means.

What products and services are rationed?

Buyers. The American price system is a complex network.

The buying and selling prices of all products in the economy.

And a variety of services, including labor,

Professional, transportation and public service. this

The interrelation of all these prices constitutes

The "system" of price. The price of any particular product or service

Linked to an extensive and complex price system, in which everything seems to be

Depends more or less on everything else. If someone asks a group of people

Randomly selected individuals to define "price", many people will answer.

The price is the amount paid by the buyer to the seller of the product or service.

Service, or in other words, the price is a

Products or services agreed in market transactions. this

Of course, the definition is valid in itself. For a complete

In any particular transaction, the understanding of price far exceeds

You must know the amount involved. Buyer and seller

Be familiar not only with the amount of money, but also with the amount and

Exchange the quality, time and place of products or services.

In which exchange will take place, payment will be made, and the form

Currency to be used, credit terms and applicable to

Transaction, product or service guarantee, delivery terms, return

Privileges and other factors. In other words, both buyers and sellers should

Fully aware of all the factors that make up the whole "packaging"

Convert the required amount so that they can

Evaluate a given price.

Definition of "price" Price determines how resources are used. Price is also a means to quantitatively supply limited products and services among buyers.

The American price system is a complex network system, including the prices of all products bought and sold in economic life, as well as the prices of various services, such as labor, full-time personnel, transportation, public enterprises and other services.

The internal relations of all these prices constitute the price system. The price of any single product or service is huge and complicated.

Miscellaneous systems are closely related and more or less limited by other components in the system. If you choose a group of people at random, ask

Ask them how to define "price", and many people will answer that the price is the amount paid by the buyer according to the products or services provided by the seller.

In other words, the price is the recognized monetary amount of products or services in market transactions. The definition itself has its reasons.

However, if we want to have a complete understanding of the price in any transaction, we must consider the influence of a large number of "non-monetary" factors. Buyers and sellers should not only know the amount in the transaction, but also be very familiar with the quality and

The quantity, time and place of the transaction, payment method, deferred payment and preferential treatment, quality assurance of the transaction, delivery conditions, the right to refund compensation, etc.

In other words, in order to estimate the asking price, buyers and sellers must be familiar with the overall details that make up the transaction price grid.

& gt04 Electric Power

Modern is an era of electricity. People are so used to electricity.

Electric lights, radios, televisions and telephones, it's hard to imagine what they are.

What life would be like without them. When the power goes out, people

Groping in the flickering candlelight, the car hesitated in the street because

Without traffic lights, food goes bad in silence.

Refrigerator.

However, people began to understand how electricity works.

Over two centuries.

Before. Nature has obviously been experimenting in this field for millions of years.

A few years. Scientists are increasingly discovering that the biological world may

Having many interesting secrets of electricity can benefit mankind.

All living cells emit tiny electrical pulses. As the heart beats,

It sends out recorded pulses; They form an electrocardiogram.

Doctors can determine the working condition of the heart through research. Brain,

It also emits brain waves, which can be recorded in

Eeg. The current generated by most living things

Cells are very small-often as small as sensitive instruments.

Need to be recorded. But in some animals, certain muscle cells

Become so specialized, just like a generator.

Muscle cells. When a large number of such cells are connected together,

On the whole, the effect may be amazing.

The electric eel is a magic battery. It can send a vibration.

Almost 800 volts of electricity passes through the water.

Life. The current of an electric house is only 120 volts. ) as

As many as four-fifths of the cells in the electric eel are transparent.

Dedicated to generating electricity and shocking its intensity.

The energy that can be transmitted is roughly equivalent to the length of its body.

Electricity Today is the age of electricity. People have become accustomed to electric lights, radios, televisions and telephones, and it is hard to imagine what life would be like without them.

When there is a power outage, people grope in the flickering candlelight; Because there are no traffic lights, cars hesitate on the road; The refrigerator also stopped working, which led to food deterioration. People only exist in two worlds.

It was only a few years ago that I began to understand the principle of using electricity, but nature has obviously experienced millions of years in this respect. Scientists don't

Discover many interesting secrets about electricity in biology that may benefit mankind. All living cells emit tiny electrical pulses.

When the heart beats, recording the pulses it sends becomes an electrocardiogram, which doctors can use to understand the working condition of the heart. The brain also sends out brain waves, which can be recorded on EEG.

The current emitted by many biological cells is so small that it can only be recorded and measured with sensitive instruments. However, some muscle cells in some animals can be converted into generators, so the function of muscle cells is completely lost.

The effect of this kind of cells connecting in large numbers will be amazing. The electric eel is a magical battery. It can generate electricity equivalent to 800 volts in water.

Voltage and current (the voltage of home users is only 120 volts). In the body of electric eel, as many as four-fifths of cells are dedicated to power generation, and the intensity of current generated is approximately proportional to its body length.

& gt the beginning of drama

There are many theories about the origin of ancient Greek drama.

One of the most widely accepted assumptions today is based on drama.

Evolved from ritual. The arguments for this view are as follows. In ...

At first, humans thought that the natural forces of the world-even

Seasonal changes-unpredictable, they seek through various means.

To control these unknown and frightening forces. These measures

It seems to bring the expected results, and then it is retained and repeated.

Until they become fixed rituals. Finally the story appeared.

Explain or cover up the secrets of the ceremony. Over time, some rituals

Abandoned, but these stories, which were later called myths, survived.

Art and drama material.

Those who believe that drama evolved from ritual also believe that drama evolved from ritual.

Rituals contain the seeds of drama, because music, dance, masks,

Clothing is almost always used. In addition, a suitable website has

For the show, when the whole community

No participation, usually with a clear division of labor.

"performance area" and

"Auditorium." In addition, there are performers because

People attach great importance to avoiding mistakes in reform.

Religious leaders usually undertake the task of making rituals. dress

Masks and costumes, they often play other people, animals, or

A supernatural person who imitates the expected effect-successful hunting or

Fighting, the coming rain, the resurrection of the sun-just like an actor might do.

In the end, this dramatic expression was separated from religion.

Activities.

Another theory holds that drama originated from human interest in drama.

Tell a story. According to this view, stories (about hunting, war or others)

Feat) is gradually elaborate, first by using imitation,

Action and dialogue, and then through their respective assumptions.

The roles played by different people. A closely related theory goes back to drama.

Those dances are mainly rhythm and gymnastics.

It is an imitation of animal movements and sounds.

There are many theories about the origin of ancient Greek drama, and one of the most widely accepted theoretical assumptions is that drama evolved from ritual.

This view is shown as follows: at first, human beings regarded the natural forces in the world, even the seasonal changes, as unpredictable. They try to control these unknown,

The power of fear. Those means that seem to bring satisfactory results are kept and repeated until they solidify into unchanging rituals, and finally stories that can explain or cover up the mysteries of these rituals are produced.

Over time, some ceremonies were abandoned, but these stories, which were later called myths, survived and provided materials for art and drama.

People who think that drama evolved from rituals also think that those rituals contain the basic elements of drama, because music, dance,

Masks and costumes are almost always used, and a suitable place must be provided for the performance; If the whole community doesn't participate in the performance, there is often a clear boundary between the "performance area" and the "audience".

In addition, there are actors in the ceremony, and religious leaders usually undertake the performance task, because it is considered very important to avoid mistakes in the execution of the ceremony.

Importance; They often wear masks and costumes and play other people, animals or supernatural beings like actors.

Perform to achieve the desired effect, such as the success of hunting or battle, the coming rain, and the resurrection of the sun. Finally, these theatrical performances are separated from religious activities.

Another theory that traces the origin of drama holds that drama comes from people's interest in telling stories. According to this view, stories (about hunting, war or other great achievements) are gradually enriched.

First, imitation, performance and dialogue are used by an interpreter, and then different people play their respective roles;

Another closely related theory traces the origin of drama back to dance, which is usually rhythmic and gymnastic, or imitates animal movements and sounds.