Everyone helps, very anxious! Intersection Intersection u003Cu003C Amber >> Answer and information of all post -class exercises in one lesson! Intersection Intersection Use it next week ... fast! Intersection Intersection Intersection Intersection Please! Intersection Intersection Intersection Intersection Intersection
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Selection of "Amber" exercises
. Read pinyin and write Chinese characters.
. Give polyphonic words.
3. Judging the positive error of the following sentences, "√" correctly, and "×" wrongly.
1. The wind scratched the small tree to crooked. ()
2. The small tree was scratched by the strong wind. ()
3. The wind was scratched by the small trees and crooked. ()
4. The small tree scratched the wind and crooked. ()
5. When we read extracurricular books, we can increase knowledge and writing level. ()
. The following words are divided into four categories.
Monkey pine squirrel rolling cabbage yellow warbler celery pineapple rabbits
n
5. Organize a chaotic paragraph and mark the serial number.
() Newton saw it and felt very strange. He thought, "Why does this apple fall?"
() "He said to himself," But why did Apple only fall on the ground, but not flying towards the sky, and not aside to the left or right? "
() Newton is the world is the world. Famous scientist.
() Newton found this problem and concentrated on research. Later, the secret of Apple's fall was finally discovered because of the attraction of the earth.
() One night, he sat under the apple tree, and suddenly an apple fell off the tree and fell beside him.
6. Repair sentences as required.
"to" the word "Qiao" sentence:
1. The fisherman's son dug out the amber buried in the sand.
2. The seawater gradually came up and drowned the forest.
:
3. A small fly flies happily in the sun.
4. Many old pine trees exudate thick pine fat in the hot sunlight.
7. Reading answers.
The island of Easter
The island of nearly triangle, which is a famous Easter Island. This island has often burst out of volcanoes in the past, and there are still many dead volcanoes on the island so far. //
(1) This island is not famous in the volcano, but because of the giant stone carvings on the island. There are a total of 670 stone sculptures on the island, of which 267 are concentrated under the Volcano Volcano, and the rest are located elsewhere on the island. These stone carvings are particularly tall, usually between 7 and 10 meters. The weight is generally about 50 tons to 60 tons, and the heaviest estimation is 90 tons up and down. This is really a veritable giant, who will be amazed in front of them.
The appearance of these stone sculptors is very strange, one by one, narrow forehead, high nose, and eyes are deep. Their heads swayed slightly. The mouth pouting can tie a donkey.
. Their hands were pressed on the bulging belly, all with round cylindrical hats carved with red rocks. The styling method is very exaggerated, as if the "modernist" works today. The expressions of the stone carvings are different, some are proud, some are peaceful, some are angry, some are happy, some melancholy, and some show nothing to anything. //
(2) Who is these huge stone carvings? This is a problem that people have been trying to solve but have not been solved. Some people say that these stone carvings are a masterpiece of Indians, because the area a few thousand years ago was a place where Indians lived, and they created a splendid culture. But why do everything else disappear? Only these stone carvings exist? This statement is relatively slim and lack of strong basis, so many people are not convinced.
The also thinks that these stone sculptors are masterpieces of the cosmic people, because it is not a simple matter to complete these stone sculptors. It is also very laborious from sculpture to transportation today. Can't do it. This is the base of the universe. They are in the universe vertical Mercedes, to open up the new world in a far place, and forget that there is such a piece of music here. Of course, this statement is even more bizarre, just like a myth, so its reliability is even smaller. //
(3) To say, the stone sculpture people on the resurrection of the island are still a mystery, and no one is revealed. The greater the charm of these stone carvings, the more people who go to the answer there. We believe that one day, we will reveal this mystery.
1. The article has been divided into four paragraphs with "//", writing paragraphs.
2. (1) (2) (3) Draw the sentence "" at the articles structure?
3. According to your imagination, whose masterpieces may be these giant stone carvings?
The Answer:
. Amber, wing wings, leaning backwards, beauty meals, speculation, surging Dirty; model, appearance; general, future; fall, reflect
three, 1. √ 2． √ 3． √ 4． × 5. ×
. Monkey, squirrel, wild boar, fox, rabbit; 3. Pineapple, Yali, cantaloupe, watermelon, bayberry; Yaers, magpies, sparrows, Bailing birds, swallows
five, 3 4 1 5 2
six, 1. The amber buried in the sand was dug out by the fisherman's son. 2. The seawater gradually came up, and the forest was drowned. 3. Fly flying. 4. Pine trees exudate pine fat.
seven. (1) There is an Easter Island in southern Pacific. (2) The stone carvings are huge and heavy, and they look strange. (3) Guess the origin of stone carvings. (4) The stone carvings are still a mystery. 2. Inherse the upper and lower. 3. slightly
① The English name of Amber is Amber, from Latin Ambrum, which means "essence". It is also said that it is from the Arabic Anbar, which means "glue", because the Spaniards call the underground Arab glue and amber as Amber. In ancient China, amber was a "tiger."
The earliest fossil resin recorded in the carbon, but amber did not appear until the early Baiji period. The famous amber sedimentary rock comes from the Baltic Sea and the Dominican Republic. Amber is mainly the resin of ancient barezyl plants, but now there are gum produced by flowering plants. Amber in the Baltic Sea sometimes contains insects or plants. It is speculated that the amber may be formed in the forest of the original pine tree species. The difference between the new semi -stone hard resin and amber is that they melt in organic solutions.
This is the resin of the Third Pine Pine Berrye plant. It was buried underground through geological effects. After a long geological period, the resin lost volatile ingredients and aggregated and solidified to form amber. It is often accompanied by the coal seam. Amber is a hydrocarbon, containing amber acid and amber resin, and the chemical components are C10H16O, of which 79%is carbon, hydrogen is 10.5%, oxygen is 10.5%, and sometimes it contains a small amount of hydrogen sulfide. The shape of amber is mostly cake -like, kidney -like, tumor -shaped, stretched water drops and other irregular shapes. A non -crystal body. The colors are mostly yellow, orange, brown, brownish or dark red, and the varieties of light green and yellow and pale purple are extremely rare. Grease luster, transparent to translucent. The discount rate is 1.539-1.545, without multi-color. Hardness is 2-3, density 1.1-1.16g/cm3. Sexual crispy, no wayy, shell -shaped fracture. Amber is an organic matter. It is softened by heating to 150 ° C, melting at 250 ° C -300 ° C, exuding aromatic rosin smell. Amber dissolved in alcohol. It often contains insects, seeds and other parcels.
The resin is now commercialized, such as hard resin produced in Gauruis, New Zealand. The amber area of the Baltic Sea is jewelery, while the hard resin is used for the decoration industry. The variety and evaluation of amber. The varieties divided by the different colors and characteristics of China are Jinbo, Bloodpo, Wormpie, Qipper, Lingpa, Shipper, Water Pop, Ming Po, Tm, Mira, Red Pine fat, etc. Among them Jinbo is a precious and high -quality amber.
If the value of amber is not high, unless it is antique, exquisite art or containing biological remains. Amber determines its economic value according to the clarity, shape, and color of insects. It is good for those with strong colors and no impurities. The color is green and transparent red. The most valuable variety is amber wrapped in insects, commonly known as "amber Tibetan bee", which is the best in insects, lifelike, large -scale, large individuals, and most of them. It is mostly used to make beads, beads, sculptures, cigarette boxes, sanitary fragrances, etc.
The maintenance of amber. The melting point of amber is low, it is easy to melt, fears heat, and fear of exposing the sun. Amber products should avoid direct sunlight and should not be placed in high temperature places. Amber is easy to dehydrate, and it is too dry to produce cracks. Amber is an organic matter that is easily soluble in organic solvents, such as nail polish, alcohol, gasoline, kerosene, and heavy liquid. It is not advisable to put it in a cosmetic cabinet. Generally, do not measure its density and use the oil soaking method to measure the discount rate of the discount rate. Essence Amber is crispy and low in hardness. It is not suitable to be impacted by external forces. It should be avoided, scratches, and prevent scratches and broken.
Them imitation products and identification. Amber's imitation products include electric wood, plastic and glass imitation amber. It is generally distinguished according to the low density, hardness, and softness of amber. Put amber and other imitation products into the saturated solution of salt together. Only amber can float, and imitation products such as electric wood, plastics, and glass imitation amber sink into saturated saline. Folding index: 1.66 electric wood, 1.63 plastic, all greater than amber. Try it with hot iron needles, amber emitting a loose smell, while the electric wood and plastic make a spicy flavor. The most similar to amber is to suppress amber. Suppressing amber is to concentrate the small amber together, heat between 200 ° C -250 ° C, and melt it together after melting and cooling. In the following observation, the turbid granular structure can be seen.
This is an ancient gem jewelry material. As a gem, it has a history of nearly 6,000 years. Among many ancient tombs in China, Greece and Egypt, jewelry made of amber was unearthed. Women in ancient Rome have the habit of holding gems in their hands. The reason is that at the temperature of the palm, amber heating can emit a faint and elegant aroma. The ancient Romans gave a high value to amber, and a small statue carved by amber was more valuable than a strong slave. Amber can also be painful to the town. In some places, a bunch of amber is often hung on the child's chest to drive away the evil town.
The amber is commonly used in coal seams and accompanied by coal essence. Fushun Amber is mainly produced in the third year of the new generation of the coal seam of amber. Amber produced by countries along the European Baltic Sea is the most famous. Others such as North America, the United States, India, New Zealand, Myanmar and other countries have all produced. China's amber production area is Liaoning Fushun and Nanyang, Henan. The amber produced by Fushun is yellow to golden yellow, which often contains insects, which are clear and beautiful. They are extremely precious varieties. The quality of amber produced by Nanyang can only be used to suppress the amber. The true and false of the amber
The natural amber texture is very light texture, floating in saturated saline, but burning or forceful friction will emit fragrance. The amber room is very "astringent". There are no two pieces of amber It is exactly the same. It is recommended that consumers do not give up the opportunity to enjoy amber because of the trouble of true and false issues. Maybe we may strengthen their knowledge about amber.
② [Alias] Blood Amber, Blood Pip, Red Amber, Optical Pop n
[Source] The resin of some pine plants, buried in the fossils of the strata for a long time, Sample material. After digging out, remove impurities.
[Character] Irregular block, granular, or polynor, different sizes. Blood red, yellow -brown or dark brown, nearly transparent. The quality is crispy, the cross section is smooth, the glass is shiny, and it becomes powder. No odor, light taste, fragile and sandlessness. It is not soluble in water, combustion and easy to melt, and explode with sound, white smoke, and slightly rosin.
[Sexual flavor to classics] Gan, flat.
[Functional Indications] Sending, diuretic, and promoting blood circulation. It is used for shocking, epilepsy, palpitations, insomnia, unfavorable urination, pain, blood urinary, amenorrhea.
[Usage Dosage] 0.5 to 1 money, more pills and bulk clothing.
[Remarks] (1) There is a kind of "Fushun Po" in the Northeast region, also known as "Qianjinzhai Coal Po" and "Tobacco Coal Essence", which are excavated from the coal mine layer. The weight is hard, the color is dark, the burning is black smoke and the gas is gas, which is different from the amber source. It is not advisable to use amber for medicine.
Teaching goals:
. Learn 12 new characters, understand "amber, sanni, brushing, hot spicy, leaning backwards, drowning, surging, sticky, speculative, loose fat and other words.
2. Understanding how scientists imagine this amber The formation process and the basis for imagination.
3. Experience the narrative order of the article. One lesson
The teaching goals:
1. Learn the words of this lesson to correctly understand the meaning of the word; r
Perceive.
The teaching steps:
. Import
(Board Title) See what students want to know? Proposal: What is amber? How is it formed? Who found it?) Let's take these questions to see the text.
. In the first reading text, the overall perception
n n n n n n n n n n n n n n n R n. Students read the text in their favorite ways, and the teacher shows the requirements:
(1) Read the quasi -word sound, and use the inaccurate instrumental book or inquire about the teacher and classmates.
(2) Draw words with words while reading, and understand the language environment.
The glue liquid flowing from the trunk of the needle tree is a raw material for making rosin and pine oil -saving oil. .
M brush: Refers to squeeze or wipe off.
Stoly: Describes the viscosity of the liquid. [Example] The wind is getting louder, and the leaves are rang.
; Amber: a fossil of ancient pine cypress resin, light yellow, brown or reddish brown transparent solid. Products.
The severity: Refers to the loss of contact with the original connection, and the original coherent is no longer coherent.
A livelihood: vitality, vitality.
The surging: describe the sound of the tangled sound. Head down; leaning, face facing up.
Small touch: estimation, probably meaning.
roar: Originally referring to the beast of the beast. Big.
The hot and spicy: described as hot as hot.
(3) Thinking: What is the text about amber? What are the characteristics of amber? ?
Inned: Amber is a fossil of ancient pine cypress resin. The amber mentioned in this article is wrapped in a fly, a spider, and the two small things. "Circle black ring" text mainly talks about the process and discovery process of amber formed by a amber wrapped with flies and spiders, and judge its scientific value.
. Teachers present amber pictures, let students compare the pictures, practice text, and be familiar with the content of the text
. R n. The process of recurring the formation and discovery of the student
6. The job
. Read the text.
. Copy new words.
The second lesson
This target:
. Read the text aloud with emotion;
. Read the text carefully and understand the process of forming amber
to cultivate and improve students' imagination;
. Learn the characteristics of the text description.
The teaching steps:
. Review introduction
what does the text write about amber? Which aspect is imagined by the author? Which aspect is a true depiction of amber? (Answer).
So what is the basis for the author's imagination? What are the conditions to form such amber? This is the question we want to explore in this lesson.
. Read the text, in -depth exploring
. Think about the above two issues in silence.
Clearly: First, there must be pine trees and cypress trees. The basis is formed by amber resin. Second, the hot summer is at noon. Because only at this time, pine and cypress exuded large drops of pine fat to form pine fat balls. Third, the flies and spiders happened to be together, and they were very close. A large drop of pine fat happened to put them in inside.
. How do scientists imagine the discovery process? Explore imagination basis.
(1) Self -study, group cooperation, teacher -student exchanges.
(2) Read this part of the character.
(3) Summary: Through the discussion of the above questions, do you know what the imagination is reasonable?
. What is the value of scientists studying this amber?
(l) Read the last natural paragraph silently.
(2) After discussion, answer.
. The narrative order of the full text of the articles in the text, and think about the difference between this lesson and the narrative order of the article "Yellow River Elephant".
In the basis of student discussion and exchanges, the teacher summarizes.
. Read the text aloud
. Freedom.
. Read the role aloud.
. The operation of the operation
Then the title of "Future ××", write an imagination composition, and imagine it reasonable.
Attachment: Board Design
]
Words annotation
The gel fluid flowing from the trunk of the coniferous tree is a raw material for making rosin and pine oil.
Wipe: Finger or wipe off.
Stoly: Describes the viscosity of the liquid.
风 的: The sound of wind. [Example] The wind is getting louder, and the leaves are rang.
Molly: a fossil of ancient pine cypress resin, light yellow, brown or reddish brown transparent solid. It can be used to make paint, decoration, etc.
This: Refers to the loss of contact with the original connection, and the original coherent is no longer coherent.
Geaic: Imagine what you do n’t know according to what you know.
Live: vitality, vitality.
The surging: Describe the sound of the Tao.
This backwards: Describe the body shaking back and forth. Slot, head down; leaning, face facing up.
stance: It is estimated, probably meaning.
roar: Originally referring to the beast to roar. The sound of water in the text is loud.
The hot spicy: Described as hot as hot.
The accumulation of words
1. Synonyms
Xue Xue — About speculation -push to wipe
. —Crocytics ——
three, polyphonic, multi -character
Sentence segment appreciation
. Both worms were drowned in the yellow tears of the old pine tree.
"Yellow Tears" refers to the pine lipstick. Why use the word "tear"? This is based on the "suddenly happened". The spiders approached the flies step by step, just wanted to be full, but they were wrapped in a large drop of pine fat. This is a tragedy of "praying mantis catching cicadas, yellow birds behind". The text of the text reflects its vivid literary color.
. From that amber, we can speculate that the detailed situation of the story 10,000 years ago, and we can know that in ancient times, there were already flies and spiders in the world.
Flies and spiders are common small insects today, but when will there be such small insects from from time to time? The discovery of this strange amber provides a strong basis for scientists to study the origin of insects. This also illustrates the scientific value of this amber.
This Introduction
This This lesson is a description article, which can also be called scientific sketches. The author is a German writer Berry. He introduces scientific knowledge about amber with extremely lively, easy -to -understand writing and full imagination. He imagined the formation and development of this amber and judged its scientific value.
The structure of the article
The full text according to the development order of the story, which can be divided into four paragraphs.
The first paragraph (first natural paragraph): It is speculated that the time for the formation of amber.
The second paragraph (2nd to 12th natural paragraphs): Talking about the conditions and processes of amber formation.
The third paragraph (13th to 17th): The process of discovery of amber.
The section of the fourth (18th natural paragraph): Talking about the scientific value of amber in scientific.
writing characteristics
. This text story is vivid and beautiful.
. Scientists make reasonable imagination and speculation based on the conditions that amber must have.
This points
. Understand the content of the text, understand the process of the formation of amber and the conditions that must be posted, and stimulate the interest of exploring the mystery of nature.
. Experience how scientists are reasonable.
3. There is an emotional read the text.
In central thoughts
This Based on a piece of amber wrapped with flies and spiders, this article imagines the formation of this amber, thereby judging its scientific value.
① The English name of Amber is Amber, from Latin Ambrum, which means "essence". It is also said that it is from the Arabic Anbar, which means "glue", because the Spaniards call the underground Arab glue and amber as Amber. In ancient China, amber was a "tiger."
The earliest fossil resin recorded in the carbon, but amber did not appear until the early Baiji period. The famous amber sedimentary rock comes from the Baltic Sea and the Dominican Republic. Amber is mainly the resin of ancient barezyl plants, but now there are gum produced by flowering plants. Amber in the Baltic Sea sometimes contains insects or plants. It is speculated that the amber may be formed in the forest of the original pine tree species. The difference between the new semi -stone hard resin and amber is that they melt in organic solutions.
This is the resin of the Third Pine Pine Berrye plant. It was buried underground through geological effects. After a long geological period, the resin lost volatile ingredients and aggregated and solidified to form amber. It is often accompanied by the coal seam. Amber is a hydrocarbon, containing amber acid and amber resin, and the chemical components are C10H16O, of which 79%is carbon, hydrogen is 10.5%, oxygen is 10.5%, and sometimes it contains a small amount of hydrogen sulfide. The shape of amber is mostly cake -like, kidney -like, tumor -shaped, stretched water drops and other irregular shapes. A non -crystal body. The colors are mostly yellow, orange, brown, brownish or dark red, and the varieties of light green and yellow and pale purple are extremely rare. Grease luster, transparent to translucent. The discount rate is 1.539-1.545, without multi-color. Hardness is 2-3, density 1.1-1.16g/cm3. Sexual crispy, no wayy, shell -shaped fracture. Amber is an organic matter. It is softened by heating to 150 ° C, melting at 250 ° C -300 ° C, exuding aromatic rosin smell. Amber dissolved in alcohol. It often contains insects, seeds and other parcels.
The resin is now commercialized, such as hard resin produced in Gauruis, New Zealand. The amber area of the Baltic Sea is jewelery, while the hard resin is used for the decoration industry. The variety and evaluation of amber. The varieties divided by the different colors and characteristics of China are Jinbo, Bloodpo, Wormpie, Qipper, Lingpa, Shipper, Water Pop, Ming Po, Tm, Mira, Red Pine fat, etc. Among them Jinbo is a precious and high -quality amber.
If the value of amber is not high, unless it is antique, exquisite art or containing biological remains. Amber determines its economic value according to the clarity, shape, and color of insects. It is good for those with strong colors and no impurities. The color is green and transparent red. The most valuable variety is amber wrapped in insects, commonly known as "amber Tibetan bee", which is the best in insects, lifelike, large -scale, large individuals, and most of them. It is mostly used to make beads, beads, sculptures, cigarette boxes, sanitary fragrances, etc.
The maintenance of amber. The melting point of amber is low, it is easy to melt, fears heat, and fear of exposing the sun. Amber products should avoid direct sunlight and should not be placed in high temperature places. Amber is easy to dehydrate, and it is too dry to produce cracks. Amber is an organic matter that is easily soluble in organic solvents, such as nail polish, alcohol, gasoline, kerosene, and heavy liquid. It is not advisable to put it in a cosmetic cabinet. Generally, do not measure its density and use the oil soaking method to measure the discount rate of the discount rate. Essence Amber is crispy and low in hardness. It is not suitable to be impacted by external forces. It should be avoided, scratches, and prevent scratches and broken.
Them imitation products and identification. Amber's imitation products include electric wood, plastic and glass imitation amber. It is generally distinguished according to the low density, hardness, and softness of amber. Put amber and other imitation products into the saturated solution of salt together. Only amber can float, and imitation products such as electric wood, plastics, and glass imitation amber sink into saturated saline. Folding index: 1.66 electric wood, 1.63 plastic, all greater than amber. Try it with hot iron needles, amber emitting a loose smell, while the electric wood and plastic make a spicy flavor. The most similar to amber is to suppress amber. Suppressing amber is to concentrate the small amber together, heat between 200 ° C -250 ° C, and melt it together after melting and cooling. In the following observation, the turbid granular structure can be seen.
This is an ancient gem jewelry material. As a gem, it has a history of nearly 6,000 years. Among many ancient tombs in China, Greece and Egypt, jewelry made of amber was unearthed. Women in ancient Rome have the habit of holding gems in their hands. The reason is that at the temperature of the palm, amber heating can emit a faint and elegant aroma. The ancient Romans gave a high value to amber, and a small statue carved by amber was more valuable than a strong slave. Amber can also be painful to the town. In some places, a bunch of amber is often hung on the child's chest to drive away the evil town.