Running in windy and dusty weather
A is different in height and weight, and B has different ability to make tools.
C brain development degree is different, and D movement mode is different.
2, the key to control the rapid population growth is
A marries late, B procreates late, C is excellent, and D is few.
3. Fetuses get nutrition in the right way.
A umbilical cord → placenta → mother → fetus B mother → placenta → umbilical cord → fetus.
C placenta → umbilical cord → mother → fetus D mother → umbilical cord → placenta → fetus.
When running, people breathe faster and deeper, mainly to meet the needs of the body.
A oxygen b carbon dioxide c organic matter d water and inorganic salts
5, the golden age of physical development and intellectual development in one's life is
A infancy b infancy c childhood d adolescence
6. The following statement about the characteristics of teenagers is incorrect.
A men and women have their own appearance characteristics, and b the functions of organs such as heart and lung are obviously enhanced.
C is growing rapidly in height, and D is fully developed.
7. Anthropologists' research shows that human beings originated from
A ape b chimpanzee c forest ape d Australopithecus.
8, in the following measures, can't avoid children born with genetic disease is
A take scientific delivery measures B postpone the age of marriage and childbearing
Young men and women have premarital examinations. D pregnant women regularly go to the hospital for physical examination.
9. Human growth and development are inseparable from the repair and renewal of damaged cells.
A sugar b fat c protein d vitamin.
10 is called "the seventh nutrient" by modern scientists.
A inorganic salt b dietary fiber c carotene d vitamin c
1 1. The following digestive juices can digest sugar, fat and protein.
A saliva b bile c pancreatic juice d gastric juice
12, the digestive organ that secretes bile is
A gallbladder b liver c pancreas d salivary gland
13, the following description about the characteristics of small intestine structure adaptive absorption function is incorrect.
There are folds and small intestinal villi on the inner surface. There are many capillaries in the villi of small intestine.
The small intestine is connected with the stomach. D the small intestine is 5 ~ 6 meters long.
14. Teenagers are in a critical period of growth and development. The following diet is suitable for teenagers.
A can eat anything he wants every day. B only eat vegetables, not fish.
C eat a small amount of food, mainly by drinking milk. Eat according to the law of "balanced diet pagoda"
15, sputum formation site is
A nasal mucosa b lateral wall of laryngeal cavity c trachea and bronchus d esophageal mucosa
16, and the gas exchange location is
A lung b throat c trachea and bronchus d nasal cavity
17, breathing through the nose is better than breathing through the mouth. this is because
A there are nasal hairs in the front of nasal cavity, and B nasal mucosa can secrete mucus.
There are abundant capillaries in the nasal mucosa. The first three items are correct.
18, people who work in dusty places are prone to occupational diseases.
A pneumonia b asthma c pneumoconiosis d tracheitis
19, the structure of the lung is adapted to the respiratory function, and has no direct relationship with the respiratory function.
The lung is the highest organ in the internal organs.
The alveoli are covered with a capillary network.
The capillary wall is very thin and consists of a layer of epithelial cells.
The alveolar wall is very thin and consists of a layer of epithelial cells.
20. The places where eggs are produced, fertilized eggs are formed and embryos are developed are
Ovary, vagina, uterus b ovary, fallopian tube, uterus
Tuba, uterus, ovary
First, multiple-choice questions (there is only one correct answer to each small question. 2 points for each question, ***40 points)
1—5 ADBAD 6— 10 DCBCB 1 1— 15 CBCDC
16—20 ADCAB
1. Humans and apes have the same ancestor ().
A. forest ape B. gibbon C. macaque D. chimpanzee
2. Human life is precious. Do you know where a new life begins? ( )
A. Egg cell B. Sperm C. Fertilized egg D. Baby born
3. The golden age of physical and intellectual development in one's life is ().
A. Childhood B. Childhood C. Adolescence D. Adult
4. The reasons why human beings must control population growth include ()
A. Limited resources B. The biosphere has a certain tolerance.
C. the standard of living is gradually declining.
Pregnant women should avoid catching a cold as much as possible during pregnancy, otherwise the side effects of cold medicine will be harmful to the fetus, because ()
A. Drugs can enter the fetus with blood circulation, which is harmful to the health of the fetus.
B drugs can enter the fetus with discharged waste, which is harmful to the health of the fetus.
C drugs can enter the fetus with oxygen inhaled by the mother, which is harmful to the health of the fetus.
D drugs can enter the fetus with carbon dioxide inhaled by the mother, which is harmful to the health of the fetus.
6. The signal that people enter adolescence is ()
A. the height increases rapidly. The weight of the brain increases rapidly.
C. the functions of various organs in the body are increasing rapidly. D. rapid muscle growth.
7. The main organic matter of cells is ()
A sugar, protein and fat, B vitamins, water and inorganic salts.
C. Vitamins, dietary fiber and sugar D. Vitamins, sugar and protein
8. Starch, fat and protein are digested in the digestive tract in turn ().
A. Oral cavity, small intestine and stomach B. Oral cavity, stomach and small intestine
C. Stomach, small intestine and oral cavity D. Stomach, oral cavity and small intestine
9. In a certain part of the digestive tract, the contents were extracted for testing, and it was found that the fatty substances in it had not been digested, but protein had preliminarily digested them, so this part should be ().
A. Oral cavity B. Esophagus C. Stomach D. Small intestine
10. In order to promote the development of children's bones, children should be supplemented with () in addition to foods with high calcium and phosphorus content.
A. Vitamin A B. Vitamin B C. Vitamin C D. Vitamin D.
1 1. The characteristics of hemoglobin determine that the main function of red blood cells is ().
A. Transport carbon dioxide B. Transport nutrients C. Transport oxygen D. Transport waste
12. When observing the blood flow in the caudal fin of small fish with a microscope, the remarkable feature of capillaries is ()
A. the lumen is very thin. B. the lumen is relatively thick. C. blood flows to the heart. The red blood cells in the test tube passed in a single file.
13. Teacher Hu went to work in Tibet from Hebei. After half a year's physical examination, it was found that there was a significant increase in one component in the blood. The added ingredient is most likely ()
A. White blood cells B. Red blood cells C. Platelets D. Plasma
14. Xiaoming's foot was injured and inflamed, and the doctor dropped antibiotics on his left arm. The way for the medicine to reach his feet is ().
① left atrium; ② Right atrium; ③ Right ventricle; ④ aorta; ⑤ Pulmonary artery; ⑥ pulmonary vein; ⑦ Superior vena cava; ⑧ Inferior vena cava; Pet-name ruby femoral artery; Attending left ventricle
A.①③④⑥②⑧③②b .⑧②③⑤⑥①⑩④⑨
C.⑧②③⑤⑥①⑧④⑨d .⑧②③⑥⑤①⑨④⑨
15. The same law of blood flow in systemic circulation and pulmonary circulation is ().
A. Ventricles, arteries, capillaries, veins and atria
B. Ventricles, veins, capillaries, arteries and atria
C. Atrium, arteries, capillaries, veins and ventricles
D. Atrium, vein, capillary, artery, atrium
16. The World Health Organization calls for the extensive use of iron pots because ()
A. iron is an important part of bones and teeth. B. Iron is beneficial to the formation of protein.
C. Iron is an important component of vitamin C, and iron is a component of hemoglobin.
17. The following organs belong to both digestive system and respiratory system ().
A. oral cavity B. nasal cavity C. pharynx D. larynx
19. When people breathe, the exhaled gas component is ()
A. no oxygen. B. all carbon dioxide.
C. carbon dioxide has increased. D. nitrogen-free
20. When exhaling, the change of diaphragm ()
A. The diaphragm is relaxed and the top of the diaphragm rises. B. The diaphragm contracts and the top of the diaphragm rises.
C. the diaphragm relaxes and the top of the diaphragm drops. D. the diaphragm contracts and the top of the diaphragm drops.
2 1. The bust length of a classmate is 80 cm in a calm state, 95cm when trying to inhale and 76 cm when trying to exhale. His chest circumference difference should be ().
A.15cm B.19cm C. 4cm D.23 23cm
22. When the diaphragm and intercostal muscle contract, the air pressure in the outside, alveoli and trachea is ().
A. external > alveoli > trachea B. trachea > alveoli > external.
C. external > trachea > alveoli D. alveoli > trachea > external.
24. During the physical examination, Mr. Li found that the urine contains a lot of glucose, so the pathological changes in his body may be ().
A. renal capsule or liver B. renal tubule or islet C. glomerulus or pancreas D. glomerulus or pituitary gland
25. Healthy people form about 150 L of raw urine every day, but only 1.5 L of urine is excreted every day. When explaining the cause of this phenomenon and the significance of urination, it is inappropriate to ().
A. When raw urine flows through renal tubules, substances useful to human body will be reabsorbed by renal tubules.
B. The reabsorbed substances include most water, all glucose and some inorganic salts.
C. Urine excreted by human body can excrete waste and regulate the content of water and inorganic salts in the body.
D. in order to maintain the relative balance of water in the body, the amount of water people drink every day is not less than the amount of urine formed in the original day.
26. Which of the following diseases has nothing to do with abnormal hormone secretion ()
Dwarfism, gigantism, night blindness and diabetes.
27. Uncle Li is a diabetic, and the treatment plan you provided him was an injection ().
A.auxin B.thyroxine C.insulin D.epinephrine
28. The structure that completes the reflection is called ().
A. Neuron reflex arc nerve endings brain
29. The structural unit and functional unit of the nervous system is ().
A. long process B. neuron C. cell body D. nerve endings
30. Belong to the complex reflection is ()
A. the pupil becomes smaller under strong light. The wonderful pantomime caused the audience to laugh.
C. Eating harmful substances by mistake causes vomiting D. Eating chocolate causes saliva secretion.
3 1. The following discussion on neuromodulation cannot stand scientific scrutiny ().
A. "Looking at plums to quench thirst" belongs to complex reflex, while sucking reflex of infants belongs to simple reflex.
B the conduction function of the spinal cord is completed by nerve fibers in its white matter.
C children's weak micturition inhibition ability is due to imperfect spinal cord development.
D. People who are drunk, walk unsteadily and stand unsteadily indicate that alcohol has paralyzed the cerebellum.
32. "Stroke" patients have a symptom of limb immobility without limb injury, because which structure is damaged ()
A. Muscle B. Blood vessels C. Brain D. Spinal cord
33. During physical examination, doctors often beat the ligament under the knee with a mallet, which will stretch the calf forward. Which part of this behavior is controlled by the checked ()?
A. Brain stem B. Spinal cord C. Cerebellum D. Brain
34. In higher nervous activity, the characteristic that distinguishes humans from animals is ().
A. people can respond to the stimulation of language and words.
B. various conditioned reflex can be formed.
C. the conditioned reflex will not fade.
D. People can form conditioned reflex on the basis of unconditioned reflex.
Xiaoming can't help shivering in the cold environment. The following statement is incorrect ()
A.because his body generates more heat than it emits. B.this is an important reaction of the human body to prevent hypothermia.
C. it is caused by involuntary activities of skeletal muscle. D. it is carried out under the regulation of the nervous system.
36. Which of the following is not conducive to environmental protection ()
A. Vigorously plant trees B. Returning farmland to forests and grasslands
C. Use electronic greeting cards D. Use disposable chopsticks
37. The statement about acid rain is incorrect ().
A. Acid rain will lead to chemical changes in nutrients in the soil, which plants cannot absorb and utilize.
B Acid rain will acidify rivers and lakes, thus affecting the growth and development of aquatic organisms such as fish and shrimp.
The fundamental measure to control acid rain is not to use fuels such as coal and oil.
D. Acid rain directly harms the buds and leaves of plants, and in severe cases, it will kill many plants.
38. In the western development strategy of China, "protecting natural forests" and "returning farmland to forests (grasslands)" are two important contents, and the primary goal of taking these two measures is ().
A. developing ecotourism B. developing animal husbandry C. increasing wood production D. improving ecological environment
39. 10 years ago, there was a street with very good greening in a city. In hot summer, people walk on the green vagina and feel relaxed and happy. Now, due to the expansion of the street, the original green belt has been destroyed and the new green belt has not grown. Therefore, people don't want to walk on the hot and bare streets. This shows that forests can ()
① shading; ② release oxygen; ③ regulating climate; ④ Release CO2⑤ during the day ⑤ Produce oxygen at night.
A.①②③④ B.①②③ C.①③⑤ D.②④⑤
1.A 2。 C 3。 C 4 explosive D 5。 A six. A seven. An eight. A nine. C 10。 D 1 1。 C 12。 D 13。 B 14。 B 15。 A 16。 D 17。 C 19。 C 20。 A 2 1。 B 22。 C 24。 B 25。 D 26。 C 27。 C 28。 B 29。 B 30。 B 3 1。 C 32。 C 33。 B 34。 A 35A 36D 37A 38D 39。 B
1. When a fish loses its pectoral fin and ventral fin, it will appear ().
A. it can only sink, not float. B. only float, not sink.
C. when swimming, the body often rolls over. D. can't keep swimming direction, swimming speed is slow.
2. The following does not belong to the characteristics of terrestrial animals is ()
A. generally, there are structures to prevent water loss. B. breathe through the body wall.
C. most people breathe through the trachea or lungs. Generally speaking, they have developed sensory organs and nervous system.
3. The main basis for classifying whales living in water as mammals is ()
A.whales breathe with their lungs. The whale's heart has four chambers.
C.the whale's body temperature is constant. Whales are viviparous and breast-fed.
4. For animals to promote the material circulation of the ecosystem, the following statement is wrong ()
A. Animals can directly or indirectly feed on plants and digest and absorb their own ingredients.
B. Food entering animals is decomposed into carbon dioxide, urine and other substances, and energy is released, and the decomposed substances can be absorbed and utilized by plants.
C the remains of animals can be decomposed by decomposers, releasing substances such as carbon dioxide and nitrogen-containing inorganic salts.
D. Animals can help plants pollinate and spread seeds.
5. The following statement about spores is wrong ()
A. spores are structures used by bacteria to reproduce.
B. spores are the dormant bodies of bacteria.
C. spores can germinate bacteria.
Spores are structures formed by bacteria in unfavorable environment.
6. The poem "Hua Hudie looks deep and the water dragonfly flies slowly" describes the () of these two insects respectively.
A. defensive behavior, foraging behavior B. defensive behavior, migration behavior
C. Feeding behavior and reproductive behavior D. Migration behavior and reproductive behavior
7. The following animal behavior, congenital behavior belongs to ().
A.the puppy does arithmetic. Newborn piglets are suckled.
C. Great tits drink milk D. Dolphins perform header and jump.
8. Radar is invented according to the echolocation principle of an animal, which is ().
A. bat B. dolphin C. giraffe D. tortoise
9. The following food production process without using bacteria and fungi is ()
A. wine B. sausage C. bread D. fermented bean curd
10. The scientist known as the "father of microbiology" is ()
A. Levin Hook B. Darwin C. Pasteur D. Linnaeus
1 1. When blowing moldy objects, there is often dust flying. The main component of this dust is ().
A. dust on objects B. spores of mold C. seeds of mold D. spores of bacteria
12. The classification of snails, anemones and spiders, and the classification of golden snakes, frogs and sparrows is based on ().
A. whether there are vertebrae B. whether the body temperature is constant
C. Different fertilization methods D. Different reproductive methods
13. The following areas with the richest biodiversity are ().
A. Farmland B city C grassland D forest
14. The plant called "China pigeon tree" is ().
A. Alsophila spinulosa, Pinus tabulaeformis, Davidia involucrata, Cycas
15. The highest proportion of biological species in China in the world is ().
A. pteridophytes, birds, fish, gymnosperms
1-5 CBD da 6- 10 CBABC 1 1- 15 BADCD
1. Among the behaviors of the following animals, the defensive behavior is ()
A. Weasels stink when they are chased by the enemy. B.frogs hug each other during the breeding season.
C. Division of labor and cooperation among different members such as queen bees, drones and worker bees D. Wild geese go in winter and come in spring.
2. There are many kinds of animals and different living environments. The following aquatic animals are inconsistent with their classification:
A. squid, octopus-mollusk B. turtle, swimming crab-reptile
C. Dolphin, seal-mammal D. Anemone, jellyfish-coelenterate
People call the forest "the master dispatching room of nature". For the rational utilization and protection of forest ecosystem, one of the following correct practices is ()
A. deforestation is prohibited. B. combination of logging and regeneration. C. promoting hunting in forest areas. D. remove the garbage.
Bacteria and fungi sometimes do harm to human health, but they can also be used by people. In the following measures, bacteria are used as objects for human use ()
A. planting mushrooms B. preparing penicillin C. making pickles D. planting gastrodia elata.
5. The following statement is correct.
A mushroom, like saprophytic bacteria, can decompose dead branches and leaves, which is beneficial to the material circulation in nature.
Yeast can only survive in an aerobic environment.
C. mold is harmful to human body, such as Aspergillus flavus, and may also cause cancer.
D. you can pick up fungi in the wild in spring. Wild fungi are delicious and can be eaten at will.
6. In the biological classification hierarchy, which level has the least species and the most * * * features? ( )
A. order B. family C. genus D. species
7. In recent years, sandstorms and sandstorms have occurred many times in Northeast China, North China and East China. An important reason for this phenomenon is that
A. Air pollution B. Soil pollution C. Volcanic eruption D. Vegetation destruction
8. The following will lead to the extinction of wild animals is ()
① indiscriminate killing ② vegetation destruction ③ natural aging ④ environmental pollution
A.①②③ B.①②④ C.①③④ D.②③④
9. In order to protect the ecological environment, the best way to eliminate aphids on cotton is ().
A. spraying low-concentration pesticides B. spraying high-efficiency pesticides C. stocking ladybugs D. any one can be used.
10. Which of the following measures has a negative impact on biodiversity protection ()
A. establishing nature reserves B. controlling industrial "three wastes" C. maintaining ecological balance D. overgrazing
1. A frog's hug is a reproductive behavior, the division of labor of bees is a social behavior, and the migration behavior of geese is winter and spring.
Portunus is a crustacean.
3.b Rational utilization of forest resources requires protection and planned utilization. If you don't cut it, you don't need it; Hunting in the forest area should be planned; The useful components in the litter can be returned to the soil by decomposers, which is not suitable for removal; Planned logging can not only be used, but also promote resource renewal.
4. Kimchi is made of lactic acid bacteria.
5. A yeast can also survive in an anaerobic environment; Mold is not necessarily harmful, Penicillium can produce penicillin for human use; Some wild mushrooms are edible, but some are poisonous and cannot be eaten at will.
6. In the classification level of organisms, the lower the level, the less species are included, and the more the same features are included. Species is the basic unit of biological classification, which can not be subdivided, including the least species and the most common characteristics.
7.d. The main cause of disastrous weather such as sand blowing and sandstorm is the destruction of vegetation.
8.b Vegetation destruction and environmental pollution will lead to the deterioration of the living environment of wild animals, making it difficult to survive, and indiscriminate hunting and killing will lead to the direct reduction of individuals, all of which are the reasons for the extinction of wild animals.
9.c Biological pest control is the best way to control pests, and aphids can be controlled by ladybugs.
10.c Overgrazing will lead to grassland destruction, which is not conducive to the protection of grassland biodiversity.