Politics
I. Multiple choice questions (3 points per question ****33 points.)
1. Secondary school students in adolescence appeared in the physical and psychological troubles, the correct understanding of these troubles ( ）
A. abnormal B. horrible C. normal D. worry
2. junior high school learning the new characteristics of the performance of ( ）
① the increase in the number of subjects of study ② in the classroom can be learned more knowledge
③ can use the The new features of puberty are ()
①Study subjects have been increased ②More knowledge can be learned in the classroom
③You can use the knowledge and ability you have already gained to learn something outside the classroom
④Read more reference books
A. ① ② ④ B. ② ③ ④ C. ① ② ③ D. ① ② ③ ④
3. Puberty is the key period of physical development in a person's life. The following is not a physiological change during puberty ( )
A changes in body appearance
B the perfection of the body's content organs
C the maturation of the sexual function D emotional richness
4. "The wind is at its peak, and the grass and the trees are in full bloom" expresses a kind of ___ emotion ( )
A. happiness B. anger A. Joy B. Anger C. Sorrow D. Fear
5. The saying "People are happy when they are happy" tells us that ( )
A. Emotions can be classified into positive and negative emotions
B. Emotions can have both positive and negative influences on people
C. People can regulate their own emotions as they like
C.
D．Emotions can have a magical effect on people
6．Adolescence is generally defined as: ( )
A．13-14 years old B．10-19 years old C．10-18 years old D．4-16 years old
A．13-14 years old B．10-19 years old C．10-18 years old D．4-16 years old
B．The age of adolescence is generally defined as 16 years old
7. Everyone has his or her own strengths and weaknesses, how should we look at our own strengths and weaknesses ( )
A. should see more of their own shortcomings, people should be more modest
B. should see their own strengths and weaknesses, and both should be seen
C. should be more of their own strengths, so that you can Encourage yourself
D．All of the above are correct
8．"Youth allows everyone to bloom once, but does not guarantee that everyone will bear fruit once. Whether you can bear fruit or not often depends on: when you were a flower." Sham Sang's famous quote inspires us
A.We should cherish our youthful years and let our youth blossom and spit out colors ( )
B.Everyone becomes talented in his youthful years
C.Youth is a blossoming flower, and she exudes a fascinating aroma
D.Youth is a flower that is sure to bear fruits once
9．Learning about oneself through others is one of the ways to know the self. The following is one of the ways to know oneself, the following are some of the attitudes and evaluations of others, the correct should be ( )
①Other people's opinions do not matter whether they listen to the collapse
②Other people's opinions can help us to recognize and understand themselves
③Other people's opinions should be analyzed calmly, neither blindly follow nor ignore
④Not listen to other people's opinions. Blind confidence
A.①② B.②③ C.①④ D.①②③④
10. Faced with the rain, Xiao Ming said, "It's so annoying, how can I go to play soccer when it's raining?" Xiaogang said, "This rain is really timely, spring rain is as expensive as oil." Xiaojuan said, "What's wrong with rain, can't we just take an umbrella and go to school?" Why do these three children show different emotions when they are also facing rain? ( )
A．The three people are in different positions, attitudes and interests
B．The three people are in different environments and mentalities
C．The three people are in different social statuses and identities
D．The three people are in different family environments
11．We will have a lot of unsolvable inner conflicts in our adolescence, and the solution to them will come from the way of ( )
D． )
①Seek help from teachers, parents, relatives and friends ②Hide it in your heart and don't tell others
③Let it develop naturally ④Learn to be your own "psychiatrist"
A.① ④ B.① ② C.① ③ D.② ④
B.① ④ B.① ② C.① ③ D.② ④
Second, multiple-choice (omission of two points, more than one choice) 0分，全选4分，***20分）
1．Please judge which of the following are the positive effects of emotions on people? ( )
A．It is always hard to get up the spirit when things don't go well
B．It is sad that my grades aren't good, but I try to correct it when I find out what's wrong
C．Ling is often jealous of other people who are better than she is, and is afraid of being left behind
D．Smaller Hua is open-minded and is good at looking for happiness in her surroundings, and finds joy in her studies and life
D．Smaller Hua is good at finding happiness in her surroundings, and finds fun in her studies and life
D．Smaller Hua has a cheerful heart.
2．"If the young and strong don't work hard, the old will be sad."
A youth is beautiful, we should cherish our youth
B if we don't cherish our youth, we will have nothing to do later, and it is too late for us to regret it
C youth is a key period to create a better life
D youth is infinitely good, we should have fun
3. The psychological development of young people A．Intelligence gradually develops to its peak
B．Self-consciousness develops rapidly, and the sense of adulthood is strong
C．Moods and emotions are rich and strong, but unstable and bipolar
D．Sexual development accelerates, and sexual awareness is emerging
4． p>4. When you encounter puberty, you can ( )
A. Seek help from your teachers B. Find out from your parents
C. Read books or surf the Internet D. Forget about what you don't understand, and don't take the exams anyway
Three. Short answer questions (10 points)
30. Xiaoming, a seventh-grade student in a middle school, had good grades in elementary school, and when he came to junior high school, he still studied hard and spent a lot of time on his studies, but his grades weren't as good as they used to be, and he was very anxious about himself. What is going on here?
If you are Xiaoming's classmate, please help him get out of his predicament.
Answer:
IV. Discussion Questions (***13 points)
Discussion: It is normal to point fingers, make jokes, and give nicknames about the characteristics of other people's physical development.
Answer:
V. Analysis and Explanation Questions (***4 points)
On Sunday, when his mother noticed that Zhou Chao had dyed his hair three colors and wore earrings, she said to him, "You're a student, how can you dress up so oddly." Zhou Chao said in disbelief, "You're so old-fashioned! So many of my classmates envy me for this trendy dressing, only they don't have the courage to do it." Mom said a few more words, Zhou Chao said angrily, "I've grown up, how to dress is my own business, don't need you to care!"
(1) Do you think we still have to listen to our parents when we go to middle school? Why?
Answer:
(2) Please make a few reasonable suggestions for how middle school students should dress.
Answer:
Biology
Chapter 1, Observing the Structure of Cells
1, Except for, organisms are made up of cells; is the basic unit of the structure and function of the organism.
2. The instrument for observing cells is .
3. All objects under a microscope are inverted images.
Exercise: "Up" and "P" are seen in the field of view, ask the slide is , .
4, eyepiece × objective = microscope magnification, the smaller the magnification, the more and smaller the object of observation; the larger the magnification, the fewer and larger the object of observation;
Exercise: 3 microscopes are: ① 5 × 10 ×; ② 10 × 40 ×; ③ 20 × 45 ×, the field of view of the largest number of cells is .
5. The observation material of the microscope must be thin and transparent.
6, microscope stain judgment: move the specimen, the stain does not move, may be in or; then turn the eyepiece, the stain does not move, the stain must be in.
7. Types of slide specimens: (cut the organism), (liquid smear), (tear or pick the organism).
8. Drawing: plant cell pattern diagram (P45) and animal cell pattern diagram (P48)
9. The sap of plants such as vegetables and fruits comes from the cells of .
10. , , and are structures that plant and animal cells **** have; , , and , are unique to plant cells; both plant and animal cells have mitochondria.
Chapter 2, the life of the cell
1, substances are divided into two categories: a class of molecules, generally does not contain, this type of material is called, such as water, inorganic salts and oxygen; a class of molecules is more, generally contains, this type of material is called, such as sugars, proteins, lipids and nucleic acids.
2, control the entry and exit of substances; energy converters in the cytoplasm are and ;
Convert light energy into chemical energy; is the power plant.
3, is the reservoir of genetic information; the material carrier for storing genetic information is; DNA and proteins are composed of; the number of constant for the normal life of organisms and succession is very important. There are chromosomes in the cell nucleus, chromosomes have DNA, DNA has genetic information.
4, organisms from small to large, is inseparable from the cell and. Cells lead to an increase in cell size, cells lead to an increase in the number of cells.
5, the cell nucleus divides, the most obvious changes; cell division, the new cell and the original cell chromosome form and number of the same, the genetic material contained is also the same.
6. Cell life requires matter and energy. The cell nucleus contains genetic information. The cell is a unity of matter, energy and information.
7. The growth and development of animal bodies, including the human body and plant bodies, begins with a cell - the beginning.
8, the structural level of the animal body is: ( )
A, cell - organization - system - organ - human body B, system - organization - organ -cells -human body
C, cells -tissues - organs -systems -human body D, cells -tissues -Organ-Human Body
9, the animal body's tissues: epithelial tissue (protection, secretion; glands and internal and external surfaces of organs), muscle tissue (contraction, diastole; heart, biceps), connective tissue (support, nutrition, support and protection; bone tissue and blood), nervous tissue (spinal cord, brain)
10. The eight systems work together in a coordinated way to enable normal life activities.
Exercise: a variety of sports can be accomplished by the motor system.
History
Lesson 7:
The Five Hegemons of the Spring and Autumn Period:
1, ;2, ;3, ;4, ;5, ;
First of all, the first to claim the hegemony was:
Conditions: (1), appointed for the phase of the reform of the internal affairs of the Qi, Qi soon became rich and strong;
(2), put forward the " " slogan and actively carried out foreign activities.
Mark: In 651 B.C., a conference of all lords was held to establish the status of hegemony.
Jin and Chu's rivalry for supremacy: Jin's hegemony was: ; Chu's hegemony was: .
The Seven Heroes of the Warring States: east; west; south; north; center;
Harmonization of vertical and horizontal rule: the representative;
Bilateral horizontal rule: the representative.
1. 770 BC - 476 BC, is the period of China's history, 475 BC - 221 BC, is the period of China's history.
2. The five hegemons, including Duke Huan of Qi, Duke Xiang of Song, Duke Wen of Jin, Duke Mu of Qin, and King Zhuang of Chu, are known in history as .
3. Among the Five Hegemons of the Spring and Autumn Period, the first one to claim the title of hegemon was , who was appointed as a minister, put forward slogans, and established his hegemony in the Central Plains in the alliance of the vassals held .
4. In the battle between Jin and Chu, the one who defeated Jin at the Battle of U and rose to be the hegemon was .
5. By Jin split into , , , , plus the original , , , , , and called .
6. The six states united north and south, *** with the resistance to Qin, known as , Qin used the contradictions between the six states, far and near, each attacked, known as .
Lesson 8
Shang Yang Changed the Law: Time Year; King ;
Background: (1) During the Spring and Autumn Period, it was widely used in the field of agricultural production;
(2) During the Warring States Period, people began to use plows drawn by pulling;
(3) Class began to ascend to the stage of history;
(4) In order to change the backwardness of the Qin state, the role of Shang Yang Changed the Law. The role of Shang Yang was to change the law.
Main content .
Significance:
1. During the Spring and Autumn period, tools began to be widely used in the field of agricultural production, occupying a dominant position. During the period, people began to use plows drawn by two oxen for plowing.
2. The popularization of the use of iron tools and oxen for plowing enabled individual production to replace collective farming and promoted the emergence of a new class.
3. Among the reforms of the Warring States period, the most influential was the Qin .
Lesson 9:
Oracle Bone Script: the script of the Shang Dynasty, inscribed on _______ or _______, is called oracle bone script.
China's written history can be traced back to the _____ dynasty.
1. During the Shang Dynasty, the writing carved on tortoise shells and animal bones was called .
2. The history of writing in our country began with the development of the Chinese characters we have today.
3. The Shang Dynasty bronzes unearthed at Yinxu are the largest discovered bronzes in the world.
Lesson 10:
Confucius: a native of Lu in the last year of the reign of Confucius, the founder of the school of thought.
Main ideas: and two parts;
Education advocates: ① founded , advocating "teaching without class"; ② encourage students to think independently, dare to insist on the right opinion; ③ teaching methods, so that students can develop their potential.
The disciples organized his words into a book, The Hundred Schools of Thought, which was published by the University of California, Berkeley.
The Hundred Schools of Thought: Time Period
Background: During the Spring and Autumn Period and the Warring States Period, the rapid development of productive forces impacted on the traditional social order and triggered great social changes.
Schools of thought Representative figures Representative works Main ideas
Function:
1. During the Spring and Autumn Period, the great thinker and educator of China was , who also founded the School of thought, and his remarks were mainly collected in a book.
2. During the Spring and Autumn Period and the Warring States Period, a situation emerged in the field of thought, and the main schools of thought at that time were , , , , and their representatives were , , , , , and .
3. During the Spring and Autumn Period, the founder of the School of War wrote a military work .
Lesson 11:
Dujiangyan: Time Period; Characters; Location on the river in the province;
Role:
1. During the Warring States period, the father and son of the governor of Shu County of the State of Qin presided over the construction of a large-scale water conservancy project in Minjiang River Basin is .
2. On behalf of the Spring and Autumn and Warring States period of China's musical art level is a large combination of musical instruments magical .
3. by successive generations of craftsmen honored as the ancestor of the famous artisans of the Warring States
Geography:
1. the maximum circumference of the earth's latitudinal lines is the equator, which is about 40,000km long. The surface area of the earth is 510 million square kilometers. The average radius of the Earth is 6371km.
2. The world's largest continent is Asia, and the smallest continent is Oceania. The largest of the four oceans is the Pacific Ocean, the smallest is the Arctic Ocean, and the ocean with the highest latitude is the Arctic Ocean.
3. A map with a large scale represents a small but detailed area. The three forms of scale are numerical, line segment, and textual. Of the four major oceans on Earth, the one that spans the widest range of longitudes is the Arctic Ocean. Of the seven continents, the one that spans the widest range of longitudes is Antarctica.
4. On a contour topographic map, where the slope is steep, the contour lines are dense; where the slope is gentle, the contour lines are sparse. The three elements of a map are orientation , scale, legend and notes. The largest island in the world is Greenland.
5. Land topography generally has five forms, namely, mountains, plains, plateaus, basins and hills. The main causes of land and sea changes are crustal changes and sea level rise and fall. In the five zones, the ground gets the least solar heat is the northern and southern cold zones.
6. The world's first cosmonaut to travel into space on a spaceship was Gagarin. China's first astronaut to take a spaceship into space is Yang Liwei. On the surface of the earth, the total land area accounts for 29% of the total surface area.
7. Of the seven continents of the world, the dividing line between North and South America is the Panama Canal. The dividing line between Asia and Africa is the Suez Canal. The dividing line between Asia and Europe is the Ural Mountains, the Ural River, the Caspian Sea, the Greater Caucasus Mountains, the Black Sea, and the Turkish Straits .
8. The largest lake in the world is the Caspian Sea. The world's highest average altitude continent Antarctica, the continent known as the "ice plateau" is Antarctica. The largest desert in the world is the Sahara Desert.
9. The doctrine of continental drift was put forward by the German scientist Wegener. in the 1960s the doctrine of plate tectonics was put forward. the earth's surface consists of six plates, namely the Asia-Europe Plate, the Africa Plate, the Indian Ocean Plate, the Pacific Ocean Plate, the Americas Plate, and the Antarctica Plate.
10. The largest plain in the world is the Amazonian plain. The world's largest river is the Amazon. The longest river in the world is the Nile. The largest tropical rainforest climate zone in the world is the Amazon Basin.
11. Land on Earth is mainly found in the Northern Hemisphere when viewed from both the Southern and Northern Hemispheres. In the division of the Earth's two hemispheres, the northern and southern hemispheres are divided by the equator, and the eastern and western hemispheres are divided by 200W and 1600E.
12. The level of air quality is related to the amount of pollutants contained in the air, which can be expressed by the pollution index, and if the value is small (large, small), it is favorable to human health.
13. On the globe, the semicircle connecting the north and south poles is the meridian (also known as the meridian), which indicates the direction of north and south and is of equal length. The lines of latitude are circles of unequal radii, indicating the direction of east and west, and are not of equal length.
14. The largest peninsula in the world is the Arabian Peninsula. The zero degree meridian is called the prime meridian and the zero degree latitude is the equator. The largest plateau in the world is the Brazilian Plateau and the highest plateau is the Tibetan Plateau. The largest basin in the world is the Congo Basin. The continents crossed by the equator are Africa and South America.
15. On October 12, 1999, the world's population totaled 6 billion. The natural rate of population growth is the birth rate minus the death rate. Population density = number of inhabitants/unit area. The shallow sea area where the continents extend into the ocean is called the continental shelf.
16. North America's indigenous inhabitants are the Indians and the Inuit, who belong to the yellow race. Of the continents, the one whose topography is dominated by plains is Europe. On a contour topographic map, contour lines project from high to low where the terrain is ridges, contour lines project from low to high where the terrain is valleys, and contour lines overlap where there are cliffs.
17. The world's most densely populated areas are found in the eastern and southern parts of Asia, Europe and South America and the eastern part of North America, and globally in the plains near the sea at low and middle latitudes.
18. At present, the world is adding nearly 80 million people a year. Overpopulation and rapid population growth have had a tremendous impact on the environment, economy and society. The period of revolution is one year and the period of rotation is one day. It is revolving around the sun.
19. For the sake of the problems brought about by excessive population growth, mankind must control itself and achieve planned births, so that population growth will be compatible with social and economic development and harmonized with resource and environmental conditions.
20. The three main races in the world are the yellow race, the white race, and the black race. The three main races in the world are all equal and there is no distinction between superiority and inferiority. The home of the black race is sub-Saharan Africa. The most spoken language in the world is Chinese, and the most widely spoken language is English.
21. The three major religions of the world are Christianity, Islam, and Buddhism. The religion with the largest number of followers is Christianity. The working languages of the United Nations are Chinese, English, French, Russian, Spanish and Arabic.
22. Sparsely populated areas are found in: arid deserts, rainforests where the climate is too humid, high latitudes where it is cold all year round, or high plateaus and mountains.
23. The main race in eastern Asia is the yellow race, the European race is mainly white, the main race in southern Africa is black. Internal forces are expressed in the form of folds, faults, earthquakes, and volcanoes. External forces are expressed in the form of sunlight, waves, wind erosion, running water, etc.
24. The main signs of the development of settlements are the increasing size of the area, the increasing number of buildings, and the improvement of roads. The mountain range that runs through western South America is the Andes.
25. The main factors in the formation and development of settlements are sufficient water, easy access to transportation, fertile soil, flat terrain, and abundant natural resources. A small scale on a map represents a large but sketchy area.
26. Settlements are centralized places where people live and can be divided into two categories: rural and urban. The three types of precipitation are convective rain, topographic rain, and frontal rain.
27. In terms of the distribution of the world's average annual temperature, the hottest continent is Africa and the coldest continent is Antarctica. The continent with the largest cold region is Asia. The areas of the world with higher average annual temperatures are distributed between the Tropic of Cancer and the Tropic of Cancer.
28. Generally speaking, high latitudes have low temperatures, high temperatures against latitudes; mountain temperatures with the increase in altitude and decrease in elevation, every 100m above sea level, the temperature drops 0.6 ℃. This is "a mountain has four seasons", the main reason for the snow on the top of the mountain does not melt all year round.
29. In China, the southeastern United States and other regions, the distribution of a climate: the average temperature of the coldest month in winter is above 0 ℃, high temperature and rain in summer (often said that the rain and heat at the same time), the four seasons, this type of climate is the type of subtropical monsoon climate and subtropical monsoon humid climate.
30. Tropical rainforest climate is mainly distributed near the equator, such as the Amazon Plain, the Congo Basin, the Malay Archipelago and other places. Tropical savanna climate is mainly distributed in the tropical rainforest climate of the north and south, the world's largest area of savanna in Africa.
31. The world's tropical monsoon climate is mainly distributed in the Indian Peninsula and the Central South Peninsula. Tropical desert areas are mainly distributed in the inland areas of the South and North Tropic of Cancer and the west coast of the continent, to the Sahara region in northern Africa is the most extensive.
32. On the east and west coasts of the continent at latitudes of 300~400 north and south, two types of climate are formed. The east coast has a subtropical monsoon climate and the west coast has a Mediterranean climate. The sun's altitude is higher where the sun's rays are direct than where they are oblique.
33. The polar day phenomenon is visible in the Arctic region, the sun does not set above the horizon all day long, then the sun makes a clockwise circular motion in the sky. The water heater unit on the residential floor should be flat (flat, vertical) in the summer compared to the winter and summer seasons.
34. Wind direction is the direction in which the wind is blowing (incoming). The east coast of the continent near the Tropic of Cancer and the west coast of the continent are compared, it is the east coast of the continent has more precipitation. The physical quantity that indicates how hot or cold the atmosphere is is air temperature. Where isotherms are dense, there is a large difference in temperature; where isotherms are sparse, there is a small difference in temperature.
35. During the year, the Northern Hemisphere temperature is highest in July and lowest in January on the continents; highest in August and lowest in February on the oceans. The opposite is true for the Southern Hemisphere. The change in temperature in a yearly cycle is called the annual change in temperature.
36. In March and September, the sun shines directly on the equator, and day and night are equally divided around the globe. The place known as the 'rainy pole of the world' is Kilapunzi. Two important indicators of climate are temperature and precipitation.
37. The Earth rotates on its axis, and the direction of its rotation is from west to east. The direction of rotation is from west to east. The result of rotation is that the Earth's surface produces the phenomenon of alternating day and night, and the result of rotation is that the Earth's surface produces the phenomenon of changing seasons of spring, summer, fall, and winter, as well as changes in the length of day and night.
38. When the direct sunlight moves from the southern hemisphere to the equator, the day is the vernal equinox and the date is around March 21st. Polar day occurs in the Arctic Circle when the sun is directly above the Tropic of Cancer. Subarctic coniferous forests are found mainly in two countries, Russia and Canada.
39. The earth's axis has a fixed inclination of 66.5 degrees to the plane of the rotating orbit. This is the regular movement of the sun's point of direct sunlight between the southern and northern tropic of Cancer during the year, which also causes a regular change in the height of the sun at noon everywhere.
40. Mountains have more precipitation on windward slopes and less on leeward slopes. In temperate regions, the coast receives more precipitation compared to the interior. Annual precipitation is more at the equator and less at the poles. The monsoon climate in Asia is notable because Asia and Europe are the world's largest continents and the Pacific Ocean is the world's largest ocean.
41. Because of the great land and sea differences between Asia and Europe and the Pacific Ocean, the eastern part of the temperate regions of Asia and Europe to form the famous temperate monsoon climate. The language spoken in most Latin American countries is Spanish; Portuguese is spoken in Brazil.
42. Common Weather Symbols
43. Subtropical evergreen sclerophyll forests are formed in the Mediterranean climate, which is characterized by hot, dry summers and mild, rainy winters. Summer in the Northern Hemisphere is June, July and August, and fall in the Southern Hemisphere is March, April and May. They have opposite seasons.
44. In terms of global temperature distribution, land and sea at the same latitude are compared: land is warmer in summer. In the daily variation of temperature, the minimum temperature occurs around sunrise and the maximum temperature occurs at two o'clock after noon.
45. People often use sunshine, rain, high and low temperatures, cloudy, windy, etc. to describe the weather, the prominent feature of the weather phenomenon is a short period of time, rapid change. While the climate has relative stability (long time, little change). The world's most widely practiced religion is Christianity. Magellan's fleet made a circumnavigation of the globe, and the oceans it passed through in turn were the Atlantic, Pacific, and Indian Oceans.
46. A weather forecast is a release of the weather conditions that will occur, mainly including temperature, cloudy or sunny skies, the likelihood of precipitation, the intensity of the precipitation, the size of the wind and the visibility of the air.
47. The climate of most areas near the equator is characterized by high temperatures and rainfall throughout the year. The type of this climate is tropical rainforest climate. The main factors affecting the climate are the shape of the earth (latitudinal factor), movement of the earth, land and sea factors, topographical factors, ocean currents.
48. The annual difference in temperature is the difference between the highest monthly temperature minus the lowest monthly temperature. If the highest monthly temperature in a place is 32 ℃ and the lowest monthly temperature is -12 ℃, the annual difference in temperature in that place is 44 ℃. The region of the world with the most pronounced change in seasons is the temperate zone.
49. The two climate types widely distributed in the world are temperate continental climate and subfreezing coniferous forest climate, mainly in the northern part of Asia and Europe and North America. Antarctica is a typical ice sheet climate. The type of precipitation in China is mainly frontal rain.
50. The mountainous plateaus in the mid-latitudes are characterized by important vertical variations in the natural landscape. The temperate oceanic climate is mainly influenced by the westerly winds. This climate is characterized by the absence of severe cold in winter and heat in summer, and uniform precipitation during the year.
51. According to the different political systems in the world, the world can be divided into two types of countries: socialist countries and capitalist countries. For example, our country belongs to the socialist countries. According to the doctrine of plate tectonics, Australia lies on the Indian Ocean plate.
52. The land, territorial waters, sea and airspace within the national boundaries are collectively called territory. On satellite cloud maps, blue color indicates ocean, green color indicates land, and white color indicates cloud and rain area .
53. According to the difference in the level of economic development, the countries of the world are usually divided into developed and developing countries. In terms of the characteristics of population growth, it is the developed countries that grow slowly. Our country belongs to the developing countries .
54. At present, the world's largest and most influential global international organization is the United Nations, founded in 1945.10.24, headquartered in New York, the United States, currently has 188 member states. The main administrative head of the United Nations is the Secretary-General, the current Secretary-General is the South Korean Ban Ki-moon, term of office of five years.
55. The world's most populous country is China, followed by India. The largest country in the world is Russia with a land area of 17.07 million km2. the smallest country is the Vatican.