24. Vibration, air 25. Reduce noise. Scaling ratio, 5.50.
27. Telescopes, microscopes, thermometers hitting the glass wall obliquely, the moon, clouds and relativity.
30. Constant, endothermic, ascending, endothermic 3 1, swift, 0.5 32, evaporation, inhalation, liquefaction 33, variable speed, simultaneous passing distance 34, loudness, tone 35, stethoscope, sound control lamp 36, solidification, liquefaction, sublimation and melting.
37, optical center, optical center, image, u > 2f, inversion, reduction, f < u < 2f, inversion, magnification, solid, u < f, upright, magnification, virtual image application none 38, (1)(3), (2), (4)(5)
48, sound has energy, sound can spread in the air 49, liquefaction, water vapor, constant 50, slightly 5 1, BACD.
52. Both sides are equal, in the same plane 53, vertical, which is convenient for measuring the object distance and image distance. Replace the chess piece B with a light screen, and the image on the light screen is not empty.
Winter vacation homework's answer 1, accumulation? Application (p7~ 13
(A) the use of words
1. Everywhere: here. It means there is no place out of reach. It also means that all the bad things have been done.
2. commenting on a woman's appearance originally refers to frivolous comments. Now it is also a metaphor for arbitrary picky.
3. Flip: Flip. Over and over are clouds; Turn it over and it will rain. Metaphor is capricious or playing politics and means.
4. Not only tell him face to face; Grab his ear and tell him. Describe severe and serious teaching.
5. Uneven: length, height and size are inconsistent. Described irregularly or at different levels.
6. See different thoughts and move different: another; Others; Move: change; Change. Change your mind when you see something different. Weak-willed; Love is not single-minded
7. Shameless, shameless: shameless; Next question: lower yourself and ask others. It is not shameful to consult people who are less knowledgeable or have lower status than themselves. Describe asking for advice modestly.
8. The water came out and fell; The underwater stones are exposed. Metaphor things completely exposed after clarification; The truth has become known to all.
9. There is no point in the text: draw a point to indicate deletion. The article is written in one go and does not need to be revised. Describe quick thinking and skillful writing skills.
10. Throw a brick to attract jade, throw a brick to attract jade; Attract white jade. Metaphor uses shallow and immature views or articles; Draw out other people's brilliant or familiar ideas or works. Often used as a word of modesty.
(2) Reading famous books
1. 1 timely rain (Hu Baoyi), it should be said that it is generous in aiding needy people.
2 Jade Kirin: Kirin, Swiss beast and Kirin are legendary mythical animals and may not exist in real life; Kirin is second only to dragons in all animals. In the ancient legend of China, Kirin, dragon and phoenix, and tortoise were combined into four spirits, and they were the king of the hairy beast. Kirin is a godsend of ordinary people. There is a folk saying that "Kirin sent the son", saying that Confucius was sent by Kirin; Kirin is dotted with stars, so it is one of the most famous auspicious animals. Kirin contains benevolence and righteousness. In the ancient culture of China, there are many legends about the rise and fall of emperors and Kirin. Kirin, like Phoenix, is hermaphrodite and Qi is male. The forest is female, and the moose's body, oxtail, fish scales and feet are even-hoofed (but there is also the saying that Kirin has five toes). She has a horn on her head and meat on it. Kirin, as a mascot, was often used in the political affairs of ancient dynasties in China. Historically, Emperor Wu of the Han Dynasty built the Qilin Pavilion in Weiyang Palace, painted heroic images as a reward, and showed the world his love for talents. Kirin is also widely used in official uniforms. The boudoir emblem of Yipin Guan in Qing Dynasty is decorated with Kirin, which shows that its position is second only to that of dragon. In the Qing Dynasty, only the imperial relatives were qualified to wear the Dragon Emblem. The emperors included Huanglong, Zilong, Prince, Brother, Baylor and Beizi, implying that they were outstanding in wealth and martial arts.
?
second floor
3 Zhiduoxing: Excellent intelligence.
4 into Yunlong; The metaphor is amazing.
5 broadsword; His ancestor is Guan Yu. Think about what weapon he used.
6 leopard head; Similar faces, Yu Yong is invincible.
7 thunderbolt fire; It can be interpreted as the fire of thunder and lightning, which means strong and brave.
8 Shuang Bian; Huyan Zan's descendants, make Shuang Bian, named after it.
9 Xiao Liguang; Li Guang, a famous soldier in the Han Dynasty, made the Huns exclaim "People are coming" and compared Li Guang's bravery.
10 small cyclone; Like a whirlwind galloping through officialdom, his surname is Chai, and his ancestors have given way to him.
2.( 1) A caged bird means that Guan Yu has the ability not to display people on earth, and needs people like Bajie and Wukong, which means that everyone has a place to display their talents.
or
The first part: People can't be as brave as Guan Yu and Zhang Fei when they are against each other.
Bottom line: People should be tactful in doing things in society, but resolute and decisive in Wukong.
Rest.
(2) Animals are in the forest, including Lin Chong and Yang Zhi. People in the Jianghu want Baoyu and Daiyu.
3. Omit 4. Omit (3)
(4) 1.( 1) A: The author is a man, which can be seen from the word "humble respect" because "humble respect" is an ancient word used to address his wife humbly.
(2) A: The author is over 40 years old and under 50 years old. You can see from the word "super four running five"
(3) A: The author is a teacher. You can tell from the word "king of the children".
2.( 1) A: Semantic error: the word "da" is a polysemous word, which means to fight, to fight, and to buy and sell grain. Polysemous words are easily misunderstood.
Grammatical error: In the specific language environment, the verb "da" takes two objects, one is the direct object "da" and the other is the indirect object "da". This notice omits the direct object, which is easy to cause misunderstanding.
(2) Answer: In this window, the teacher is given a meal first, and then the students are given a meal.
(5) The word "unlucky" is a Zhejiang dialect, which originated in the late Ming Dynasty. "Unlucky" never appeared in special sentences, and its appearance was related to the imperial examination system and folk customs at that time.
At the end of the Ming Dynasty, the imperial examination system of "stereotyped writing for selecting scholars" was implemented. To be an official, a scholar must pass the imperial examination. Due to the great limitations of the imperial examination, the talents of intellectuals have been seriously affected, and the phenomenon of graft in the examination room is serious, so it is difficult for ordinary scholars to gain fame. For good luck, candidates usually put up a flagpole at home before the exam. At that time, people called this flagpole "lintel". If you pass the exam, the flagpole will remain upright. If you fail, you will have to remove the flagpole. People call it "bad luck" to pull the flagpole. Later, this word was more and more used to describe unsatisfactory things in spoken and written language.
Today we write "unlucky" as "mildew" or "eyebrow", but we don't write the original "unlucky", which is also true, but when we use it, we should remember that the word "unlucky" evolved from "unlucky"
(6) China's calligraphy is an ancient art of writing Chinese characters. From Oracle Bone Inscriptions, Shi Guwen, and Jinwen (Zhong Dingwen) to Da Zhuan, Xiao Zhuan and Li Shu, and then to cursive script, regular script and running script in the Eastern Han Dynasty and Wei and Jin Dynasties, calligraphy has always exuded artistic charm. China's calligraphy is a unique visual art, and Chinese characters are an important factor in China's calligraphy, because China's calligraphy was produced and developed in China culture, and Chinese characters are one of the basic elements of China culture. Relying on Chinese characters is the main symbol that distinguishes China's calligraphy from other kinds of calligraphy.
Winter vacation homework 16- 19
Light is a medicine.
1 and (1) affect the biological rhythm of many animals, causing harm to them (2) affecting the normal relationship of food chain interdependence (3) causing serious imbalance of human hormones and endangering health.
2.( 1) Reduce the power and brightness of most lighting lamps (2) Don't abuse decorative lamps (3) Reduce work (study) time at night (4) Turn off the lights and sleep.
The Colors of Ancient Buildings in China
1. The architecture in the north is bright and lively, and the south is beautiful and elegant.
2. Taking the Forbidden City and the Temple of Heaven as examples, the author illustrates the characteristics of contrast and harmony (or liveliness) in northern architecture, and the relationship between the formation of color style and the natural environment.
3. Yangko is a popular folk dance in rural areas of China. It embodies a distinctive national style in the use of color. When people dance yangko, the clothes they wear are in sharp contrast, red, blue, yellow, green and colorful. Everyone sang and danced with the accompaniment of gongs and drums to express their happy mood and yearning for a better life. The dancing red silk reflects a bright smiling face and becomes a beautiful scenery.
Fu Lei's Family Letters
1. Encourage your son to face emotional trauma and learn to bear it calmly.
2. First of all, treat everything calmly; Secondly, develop another kind of mood to treat the past.
3. Used to explain "orgasm won't make you too nervous", just seeking a relative psychological balance and not being hurt.
4. "Dare to face up to reality, face up to mistakes, use rational analysis and understand thoroughly, so as not to be eroded by memories"; For emotional trauma, we should "regard it as the ashes of the soul." "The mentality is quite balanced, so you won't get hurt", "There are not too many orgasms to make you nervous, and there are not too many low tides to make you decadent"; We should correctly treat depression and depression, learn to take it calmly with a philosophical attitude and maintain a balance of mind; Then we can calmly and objectively analyze things, face up to reality and learn lessons.
Epiphyllum finally bloomed.
1, a little impatient, indifferent, ecstatic.
2. Use anthropomorphic rhetoric to describe the shape of epiphyllum in flower buds, personify epiphyllum and make it more vivid.
All the beautiful things in the world can blossom and bear fruit as long as they persist and persevere.
Winter vacation homework English
One of English
Kabuto's humor, mixing, photos, worrying, thinking, real, mine, traveling, swimming, and most importantly, talking.
Tourists, trying, running, entertainment, magazines.
Extended research 1, walking home 2, how far 3, height 4, all and all are 5, others are better.
Don't camp dangerous outdoor activities 2 and how to answer the suggestions.
3. Climb healthier diving.
He has poor eyesight, so he always wears glasses.
This story is more exciting than that one.
Simple feelings and experiences
English 2
I. DCACACDB
Second, mystery, drive, delicious, smart, closed, hero, admiration, cleverest, loss, voice, size, yours.
Exploration 1, incorrect 2, why not 3, not as good as 4, and 5, Wang Min is missing 5 yuan. Thank you. I still have 5 yuan's money, thank him.
Innovation booth 1, why don't we play volleyball instead? They swam happily in that river yesterday. She practices playing softball every week. John studies fewer subjects than Nancy.
He doesn't know how to cook healthy and delicious food.
Simple feelings and experiences
English 3
1.CDDCA II。 Visit, get, have a meeting, read, close, start, be bored, greet, leave, hold three. Beauty, airport, over, sunset, coach, halftime.
Expand the query 1, what did you do 2, read whether it was 3 or 4, and taught yourself 5 to enjoy the source code.
Innovation booth 1, preparation 2, unbelievable 3, online photos 4, seeing places of interest 5, for yourself.
Feel and experience CCAA
English 4
I. Ba Boots II. Delicious, forest, protection, war, wolf, continue three. If it doesn't rain, it will die. Buy, play, yes.
Expand and explore upward, enter in gray, cut down, and there is no danger.
Innovation booth 1, follow action 2, encourage protection 3, stay if it doesn't rain 4, it's hard to survive 5, and the number is increasing.
Simple feelings and experiences
English fifth
1.DDDAD II。 Northern, dangerous, incorrect, uninterested, tourists, unnecessary, provided, impossible and careless.
1, wrong, 2, it's raining heavily, 3, it's dangerous, bird 4, how long has it been 5, there's one.
Happy translation
More and more birds are in danger because they don't have enough space to live in.
We hope everyone can do something to protect wild animals.
Miss Li is one of the popular students in our school.
People change wetlands to make room for farms.
If you practice singing, you will sing well.
Feel the experience
48 Feel the experience
Oxford Churchill Language School
driver
English
Ten months
Park Road 1 123
English VI
1-6 Babu BC
Second, always carefully point out the temperature.
Go, exercise, do, like, visit, go, write, meet, meet, talk, tell, leave and watch.
Expand research
Fell down, covered with snow, trapped, turned off, and finally said to myself, try your best, as if
Innovation booth
1, calm down and be surrounded by darkness.
Run in all directions
We are in a hurry.
4. Look at each other in fear
Try your best to save him.
6. Because I didn't eat anything
Feel the experience BCDDB
English seven
First of all, CDABBCB
Second, accidents, calmness, vibration, direction, weather, troubles, earthquakes, and severity.
Expand research
1, notify the reservation
2. What is it like?
A heavy rain
4. Go at once
5. Why did he?
Innovation booth
Feel the experience FFTTTF
Band 8 of English
I decabromodiphenyl ether
Second, yin, pull, leaf, stand, busy, careful, noisily, action, more, suggestions.
Exploratory exploration
He will arrive at eight o'clock in the morning.
We won't go camping next week because we have to prepare the text.
We should try our best to help those who need help.
If I am free next week, I will have a picnic.
Fewer and fewer people buy clothes made of animal fur.
Feel the experience CDABD
Winter vacation homework's biological answer
1 ~ 6 adbac
7. Water, air, trace elements, plants, animals and microorganisms
8.( 1) Nerve impulses of afferent nerve, nerve center, receptor, effector and efferent nerve (2)
9.( 1) eggshell; Air chamber; Inner and outer eggshell membranes; Lace; Egg yolk; Egg white; The blastoderm (2) stores air; It is the embryo development place where fertilized eggs divide and form.
10. Animals move in various ways. Insects, birds and other terrestrial animals fly or glide, while other terrestrial animals mainly walk, run, jump and crawl, such as lizards and bears. Swimming is the main way for aquatic animals.
1 1.( 1) anemia, lower than normal number of red blood cells (2) inflammation, higher than normal number of white blood cells (3) coagulation disorder, and lower than positive constant of platelets. (4) Iron deficiency anemia, the hemoglobin content is significantly lower than the normal value. (5) Other inspections.
14. At noon, the cat's eyes squinted. Zhang's painting is round, so it is wrong and fake.
Winter vacation homework's Mathematical Answers
3. Geometry and reasoning.
1. Connect AC, because AD=4 and CD=3, so it is obtained from Pythagorean theorem: AC=5, and because AB = 13 = 169, BC+AC = 12+5 = 65438.
Fifth Floor
=( 12×5)/2-(3×4)/2=30-6=24 .
2.AB，AC
3. Because AB=AC, ∠ ABC = ∠ C. Because BC=BD, ∠C=∠BDC=∠ABC. Because AD=DE=BE, ∠ A = ∠ AED = 2.
4.( 1)∫DE is the center line of △ABC. ∴ DE = 1/2ac，CE = be。 ∫CF = 1/2ac。 ∴。 CF =
(2)∫≈ 1 =∠2∴BM = am。 ∵ AB//CD。 ∴∠ 1 = ∠ CMB，∠2 =∞。
③∫e is the midpoint of BC, ∴BE=EC is ∵EF⊥AB, F,EG⊥CD is G, and EF=EG, ∴△BEF≌△EGC(HL), ∴.
(4) If the extension line of the intersection D from DE‖AC to BC is at E, then ∠ BDE = 90. Then d stands for DF⊥BC at F.
∵ trapezoid ABCD is isosceles trapezoid, then AC=BD. And \ad \bc, DE \ac. A quadrilateral is a parallelogram. AD = CE，AC=DE=BD。
∴△BDE is an isosceles right triangle. Then df =1/2be =1/2 (BC+ce) =1/2 (BC+ad) =1/2 (m+n) ∴.
(5) In the isosceles trapezoid ABCD, AB=CD ∠ABC=∠DCB BC is the public side, ∴△ABC≌△DCB(SAS).
∴AC=BD advertising is the male side of∴△ Abd ≌△ DCA (SSS).
∴∠abo=∠dco∠AOB =∠doc△ABO?△dco(AAS)
∴ OB = OC ∠ BOC = 60 ∴△ OBC is an equilateral triangle. Similarly, △AOD is an equilateral triangle.
Even DE and CF, from ef =1/2ab =1/2cd (ef is the midline of △AOB) ∴EF=DG=CG(G is the midpoint of CD).
E is the midpoint of AO. ∴DE is the middle vertical line of AO. ∠ DEC = 90。 EG is the center line of ∴ ef = DG = eg. ∴ DG = eg.
CF is also the middle vertical line of BO. ∴∠ DFC = 90 ∴ FG = CG = EF ∴△ EFG where EF=EG=GF. △ EFG is an equilateral triangle.
Winter vacation homework geography answer
1、C 2、A
3. South; Pacific Ocean; Indian Ocean; Warm and humid
4. Monsoon area;
5.( 1) Summer;
(2) the southeast coast; Northwest inland;
(3) Flood
6-8 is omitted temporarily.
Query operation
1, (1) can be used to record the location of their provinces, such as the upper, middle and lower reaches of the Yangtze River and Yellow River, the provinces on both sides of Taihang Mountain (Shandong in the east and Shanxi in the west), the provinces on both sides of Daba Mountain (Chongqing in Sichuan in the south and Shaanxi in the north) and the provinces around Nanling Mountain (Jiangxi in Hunan in the north and Guangxi in Guangdong in the south).
(2) Use the formulas of China provinces and regions. As follows:
Guangdong, Guangxi, Henan, Hebei, Shandong and Shanxi.
Xiajin Landscape of Heijiliao (Heilongjiang, Jilin, Liaoning, Tianjin, Beijing)
Mengshan Mountain in New Gansu, Qinghai, Tibet, Xinjiang, Gansu, Inner Mongolia and Shaanxi.
Southwest Yunnan, Guizhou, Sichuan and Chongqing.
Anhui, Suzhou and Shanghai, Zhejiang, Fujian and Jiangxi (Anhui, Jiangsu, Shanghai, Zhejiang, Fujian and Jiangxi)
Hongkong, Hainan and Taiwan Province provinces.
(3) Regionalization: China is divided into North China, and the six regions of Central China, South China, Southwest China, Northwest China and Northeast China are recorded as the provinces included in these six regions. In addition, China can be generally divided into east, middle and west regions, and then the provinces in these three regions will be remembered.
(4) According to the memory of important cities. For example, Wuhan is a grand event in Hubei Province and a regional central city in Central China. The important ports in the middle reaches of the Yangtze River can be associated with Hubei Province being located in the middle of China, Hubei Province being located in the middle reaches of the Yangtze River (the upper reaches of Yichang River), and Sanya being located at the southernmost tip of China, with four seasons like summer. It can be considered that Hainan, where it is located, is also located at the southernmost tip of China. There are many other examples.
2.K304 is an express passenger train, starting from Lianyungang, going west to Xuzhou via Longhai Line, going from Xuzhou to Fuyang in Anhui via Suifu Line, going from Fuyang to Nanchang in Jiangxi via Beijing-Kowloon Line, going from Nanchang to Zhuzhou in Hunan via Zhejiang-Jiangxi Line, and going from Zhuzhou to Guangzhou via Beijing-Guangzhou Line. It passes through Jiangsu, Anhui, Jiangxi, Hunan and Guangdong provinces, and the important railway stations (hubs) along the route are: Xuzhou, Fuyang, Jiujiang, Nanchang, Zhuzhou and Guangzhou. Lianyungang-Xuzhou section is a part of the Second Eurasian Continental Bridge-Longhai Line (Haizhou, Lianyungang, Jiangsu Province to Lanzhou, Gansu Province), and Xuzhou-Fuyang, Anhui Province is Suixi-Fuyang (this section is one of the special coal transportation lines in Anhui Province and does not belong to the national railway trunk line). The section from Fuyang, Jiangxi to Nanchang (more accurately, xiang tang, south of Nanchang) is the Beijing-Kowloon Line, and Nanchang (xiang tang).
The Innovation Pavilion (1) has a large temperature difference between day and night and a rapid climate change.
(2) Pay attention to keep warm and bring more clothes.