P30: Minshan Mountain is located at the southern foot of Qinling Mountains. Why is there a landscape of "thousands of miles of snow"?
Minshan Mountain is 5588 meters above sea level. Because of the vertical distribution of the landscape, it is obvious that there is snow on the top floor.
Who is the reason why Dadu River in Jinsha River is rich in water resources because of its dangerous terrain?
Located near the dividing line between the first and second terrain in China, it has a large terrain drop and rich hydraulic resources.
p29
Is it true or not?
1 differential element
Britain and France
3 Li Dazhao
4 Chen Duxiu
5 Gansu
6 preliminary formation
No.7 Guanda Street, Xing Ping
8 cases did not recover well.
9 Shanghai
10 Reform Movement of 1898
p30
1 Hebei
2 Inner Mongolia
3 Heilongjiang
4 Shanxi
5 Liaoning
6 Qinghai
Geography:
P30: The Wujiang River will not be realized until it is defeated (guess the name of the provincial administrative region in China).
Hebei Province
Underground cultural relics (guess the name of China provincial administrative region)
Inner Mongolia
Dark clouds turn into timely rain (guess the name of China provincial administrative region)
Heilongjiang province
Looking back, you can also see the sunset (guess the name of the provincial administrative region of China)
Shanxi
Distant blessing (guess the name of China provincial administrative region)
Liaoning province
Song Li (guessing the name of the provincial administrative region of China)
Qinghai
The correct rate is not responsible at all. ...
mathematics
P 1 1
1. 10/3 -3/ 10 10/3
2.0
3. 16/9
4.35 cm
5.5 cm
6.45
1. 120 degrees, 60 degrees, 120 degrees, 60 degrees.
2. A (0,3 root 3) B (-3,0) C (3,0)
3.(0,-3) (0,3)
positive
5.6 7 1260 degrees
6. 14 16 1200 1200
7.82.4
judge
No matter how
choose
DCCDB
P 12
8. 12cm 0.5kg y = 0.5x+ 12
9.4 -3/4 1 1.5 2 1/2
10. The root number 3 decreases.
1 1.3/2
12.9
13.4 5
14.4 km/h 5 km/h
English Cloze Reading Comprehension
English single choice
1-5 AAAAC 6- 10 ADCBB
Blank filling
A:
ACBACDADCC
B:
BCACDBCCAA
reading comprehension
A:
CCBBB
B:
CBCBC
C:
FFTF
P49 Qing Xin pao Hu China tea
1. Tea bears the traditional culture of China, and every generation of literati has a special liking for it. One of them loved tea all his life and was called "Cha Sheng" by later generations. Do you know who he is? Which dynasty did he live in? What are his professional classics about tea?
"Cha Sheng" is Lu Yu who lived in the Tang Dynasty. His professional classics are
2. The famous sayings about tea in history are not a list of victories, but one of them, "Seven Bowls of Tea Songs" left by Lu Tong, who was called "Ya Sheng" by later generations, is a masterpiece admired by people who have been good at tea in past dynasties. Please copy a well-known passage. (A bowl of broken loneliness ...)
A bowl of broken loneliness, two bowls of throat-moistening kisses,
Three bowls of heartbroken, only five thousand volumes of words.
Four bowls of sweat, life is not smooth, scattered to the pores.
Five bowls of bones and muscles are clear, and six bowls are immortal.
I can't eat seven bowls, but I feel the wind blowing under my arm.
Please refer to 1 2 ancient poems about tea and copy them below.
Fried tea
Tang Cheng Yanxiong
When the moon misses spring sleep, the tiger runs by the spring and thinks slowly.
Shu tea was crushed by a cloud monk, and three or four withered pine branches picked it up by themselves.
Beichawu
Tangguguang
The new tea has been baked, but the old shelf is worrying.
In the swirl, new smoke came out and shouted at the cold wood.
Click on tea
1 All kinds of teas are made through the steps of enzyme fixation, rolling and drying, but different teas have different production methods, such as temperature control, fermentation time, rolling and pressing technology, etc ..... and the brewed teas are different. There is also the difference in birth. Because of the different weather and soil, the basic quality of tea is also different.
2 West Lake Longjing Tea.
Its quality characteristics are: flat and beautiful appearance, green color, fragrant and mellow inside, soaked in a cup, green leaves, like water hibiscus, lifelike.
West Lake Longjing Tea is famous for its green color, strong fragrance, sweet taste and beautiful shape.
The excellent quality of Longjing tea is formed by fine processing technology. Picking 1 bud, 1 leaf and 1 two leaf buds as raw materials, then spreading, green frying, moisture regain, screening, steaming, screening and sorting (removing yellow tablets and tea powder), dust removal and warehousing.
The frying process of Longjing tea is very complicated. According to different fresh leaf raw materials and different frying stages, ten techniques of "shaking, patting, pressing, spreading, throwing, buckling, standing, grasping, pressing and grinding" are adopted respectively.
What are the common ways of asexual reproduction? What are the benefits of asexual reproduction?
There are grafting, cutting, layering and separation.
Benefits can accelerate reproduction, improve crop varieties and preserve the excellent characteristics of varieties.
Tea and health
1. Please write down that green tea can strengthen the body and prevent dental caries.
Tea tree is a plant that can enrich fluorine from soil. The fluorine content of old leaves is higher than that of young leaves. The caries prevention mechanism of tea tree is mainly because it is rich in fluorine. In addition, tea polyphenols in tea can kill lactic acid bacteria and their cariogenic bacteria. These fungi are pathogens that directly or indirectly cause tooth decay. The surface activity of saponin in tea enhances the bactericidal effect of fluoride and tea polyphenols. Therefore, the anti-caries effect of tea is mainly due to the comprehensive effect of these three compounds. Moreover, the research shows that the caries prevention effect of tea is far better than that of fluoride compound preparation. In addition, tea also has the functions of strengthening tooth resistance, eliminating residual protein in oral cavity and removing halitosis.
2, drinking will get drunk, but do you know that drinking tea will also get drunk? Please refer to the resources and write down the reasons for drinking tea.
Theophylline is a stimulant of the central nervous system. If the concentration is too high or too high, it is easy to get drunk: blood circulation is accelerated, and shortness of breath causes a series of adverse reactions. It causes electrolyte balance disorder in human body, and then makes the activity of enzymes in human body abnormal, leading to metabolic disorder.
Its intoxicating substances are caffeine and fluoride. After drinking several cups of strong tea, some people often have symptoms such as allergies, insomnia, headache, nausea, unstable standing, trembling hands and feet, and decreased efficiency in fine work. In fact, this is the role of excessive caffeine. People who drink tea seriously will have muscle trembling, heart rate disorder, and even convulsions and convulsions. This is a dangerous signal from the central nervous system and should be sent to the hospital for emergency treatment immediately. Tea contains more fluorine, and excessive accumulation of fluorine in human body will cause chronic poisoning. The main symptoms are discoloration and defect of teeth, pain of spine bones and joints of limbs, general weakness, severe limb dysfunction, deformation of bones and joints, and even paralysis.
5. Tea has been one of the "seven things to open the door" in China since ancient times. What are the other six things?
Fuel, rice, cooking oil, salt, soy sauce, vinegar and tea-the main daily necessities.
6. In addition to "seven things to open the door", China also has "seven things to be a scholar". Do you know what they are?
Qin, Qi, Painting, Calligraphy, Poetry and Qufu
P42
1, DuPont scientists' research is to use animal genes as a "production workshop" to produce some substances needed by human beings, which is a bioreactor.
2. This kind of reactor is the "breast bioreactor", that is, by modifying the goat's genetic genes, scientists can make its breast produce and secrete spider silk protein, which scientists need.
3. From the perspective of ecological law, will this emerging technology have adverse effects? It is suggested to collect information about transgenic technology and its application for research and analysis. )
Biology is the result of long-term evolution, and in the existing ecosystem, species should be harmonious; Transgenic technology may upset the original balance.
1. The organism that causes tinea is fungi.
Fungi are harmful to animals and plants.
2. Heterotrophication
3. Ways to prevent tinea: Pay attention to personal hygiene and public hygiene, and don't use the instruments of people suffering from tinea. Once tinea is found, it should be cured in time.
p37
Concave mirror can gather light.
(2) See Lou Min's every move clearly.
(3) The glass curtain wall of concave building will gather light, which will increase the local temperature and cause fire hazards.
(4) Replace the glass curtain wall of high-rise building with ground glass or ordinary wall.
P40
(1) Learning behavior is the behavior obtained from life experience and learning on the basis of genetic factors. Features: It was the best when I was a child. As I grow older, my learning ability becomes weak, which is strongly influenced by the day after tomorrow.
(2) People's learning ability is not unlimited. It is found that people's learning ability is the strongest in infancy, especially in the first few years of life. After this period, their learning ability declines.
(3) Wolf children are divorced from society in infancy, that is, in the early stage of learning languages and other necessary human abilities, so they miss the best period of learning and it is difficult to learn again in the future.
We should learn more knowledge when we are young, so as not to regret it when we grow up.