Junior high school biology completion, review materials, what books to use for junior high school bi

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If you want to learn about biology, you should first click on the training book, which will teach you how to solve all the questions in biology, so that you can improve your score quickly without losing points in the exam.

High school entrance examination review. Foundation section.

1. The biosphere includes the bottom of the atmosphere, most of the hydrosphere and the surface of the lithosphere.

2. The environmental factors that affect the life of living organisms can be divided into two categories: biological factors and abiotic factors (light, temperature, water, etc.).

3. Adaptation and influence of organisms to the environment: Organisms constantly adapt to the environment and influence and change the environment in the process of survival and development.

4. The composition of the ecosystem includes the biotic part and the abiotic part, of which the biological part includes producers, consumers and decomposers; Abiotic parts such as sunlight, air, water, etc.

5. The relationship between producers and consumers is mainly the relationship between eating and being eaten, so that the food chain is formed. The food chains are intertwined with each other to form a food web. Matter and energy in ecosystems flow along the food chain and food web, however, harmful substances such as pesticides are increasing step by step.

6. Steps for using the microscope: taking and placing the lens, aligning the light, observing, cleaning and closing the lens.

7. What the eyepiece sees is an inverted image; The magnification of a microscope is the product of the magnification of the objective lens and the eyepiece. For example: 10x30=300

8. If you see the image in the field of vision to the lower left, the specimen should be moved to the lower left to carry the animal portrait to **; The specimen moves upwards to the right, and the object seen in the field of view moves towards the lower left.

9. Onion scale leaf epidermal cell temporary loading production: preparation (wipe clean, drip water); Production (peeling off the inner epidermis, flattening; coverslips); Dyeing (dripping iodine solution, absorbent paper grip attraction).

10. Temporary loading of human oral epithelial cells: preparation (wipe clean, drip normal saline); Preparation (a few scrapes, smearing; coverslips); Dyeing (dripping iodine solution, absorbent paper suction).

11. Compared with plant cells, animal cells do not have: cell wall, chloroplast, vacuole; Similarities: all have a cell membrane, cytoplasm, and nucleus.

12. Cells are composed of inorganic substances (such as water, inorganic salts, oxygen, etc.) and organic substances (such as sugars, nucleic acids, proteins).

13. The cell membrane controls the entry and exit of substances; Chloroplasts (which plants have) and mitochondria (which animals and plants have) are energy converters.

1. Return to the textbook. Junior high school knowledge only needs to understand superficial knowledge, and its principles do not need to be examined, so read more textbooks and memorize the terms in the textbooks, and the exam is almost the same.

2. Look at the pictures in the textbook. Try to memorize the diagrams in the textbook as completely as possible, because the diagrams that appear in the exam are almost the same as those in the textbook.

3. Do more practice questions. It's not enough to memorize the knowledge points, you also need further practice to know how to use the knowledge points to do the questions.

Generally speaking, don't review if you have a solid study in the eighth grade, and don't spend too much time in the next semester if you go to prison in the eighth semester of biogeography.

Biology 1, human (focus).

2. Botany.

3. Zoology and cytology (don't spend too much time learning once in the eighth grade) 4. Heredity (difficult).

5. Previous exam papers or materials (may be plagiarized).

6. Structural diagram and the role of its parts.

7. Format of answers in experimental questions (subject of the exam).

Geography 1, map, focus on the analysis of the map, of course, also remember a little place name 2, the Yangtze River, the Yellow River and your local main rivers (depending on whether you have a local geography book, if not) (must be examined, must be memorized).

3. China's administrative regions, topography, climate and resources.

4. Maps and the Earth.

5. World geography (relatively much read, after all) climate, major topography, capitals and cities, culture 6, the same as the fifth point of biology.

Most of the exams are from textbooks, and you should read more textbooks and learn to use the knowledge in them.

Back to the textbooks. Maps are important in geography, and maps are also important in terms of the structure of living things.

So let's memorize the picture first.。。

Biogeography is not difficult, always memorize.

The teacher should listen carefully in class, understand the most important thing, memorize the knowledge points, in fact, not much, keep in mind the exercises sent by the teacher, do it well, treat the paper as an exam, read the book carefully, and ask the teacher if you can't It's actually very easy Unlike mathematics, physics, which costs brains, there are so many question types, just work hard, come on.

Then the teacher will send you the answer.