"Care for vegetation and green the motherland" PPT courseware 7

"Care for vegetation and green the motherland" PPT courseware 7

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"Care for vegetation and green the motherland" PPT courseware 7

vegetation

All the plants growing in an area are called the vegetation of the area

Main vegetation types in my country

grassland

Characteristics: Most of the plants that make up grasslands are _________ adapted to ________ climatic conditions.

desert

Characteristics: The ecological conditions are harsh, with hot and dry summers and cold winters. Desert vegetation is sparse. Plant types are _____, all of which are _____ plants.

Rainforest

Features: Distributed in areas with high temperature and rain all year round, the plant species are particularly rich, evergreen all year round, and most of the plants are very tall.

The main problems faced by vegetation in my country

forest

(1) Forest coverage rate is 16.55%

(2) The per capita forest area is 0.128 hectares ≈ 1/5 of the world’s per capita level.

(3) The utilization of forest resources is irrational and the forest ecosystem is declining.

grassland

Overgrazing causes grassland degradation and desertification. The vibrant prairie lost the protection of vegetation and turned into a desolate desert.

Knowledge summary

1. Main vegetation types in my country.

2. The main problems faced by my country’s vegetation.

3. Establish the awareness of caring for vegetation and greening the motherland.

In-person testing

1. Among the following vegetation types, the most drought-tolerant plants should be ( )

A tropical rain forest B evergreen broad-leaved forest

C coniferous forest D desert

2. At present, what is the forest coverage rate in my country ( )

A 27% B 33%

C 16.55% D 30%

3. It is reported that after entering the 20th century, at least one species of creature disappears from the earth almost every year. The main reason why wild animals are endangered is ( )

A natural disaster B the result of virus attack

C There are too many enemies D Human activities have damaged the ecosystem

4. Hundreds of years ago, there were dense forests on the Loess Plateau in my country, but later they became barren mountains. The main reason is ( )

A The northern cold current invades for a long time

B Long-term drought, red land thousands of miles away

C Over-development destroys ecological balance

D Earth’s crust moves frequently

after class homework

Based on the knowledge learned, design the greening of our campus and see which group's design is the most economical, reasonable, beautiful and practical.

typography design

1. Main vegetation types in my country

2. Draw a histogram to compare forest coverage in five countries.

3. Main problems faced by vegetation in my country

4. Care for vegetation and green the motherland

Keywords: Caring for vegetation and greening the motherland teaching courseware, download the PPT courseware for seventh-grade biology from the People's Education Edition, download the seventh-grade biology slide courseware, downloading the PPT courseware for caring for vegetation and greening the motherland, .PPT format;

For more information about the PPT courseware "Caring for Vegetation and Greening the Motherland", please click the "Caring for Vegetation and Greening the Motherland" ppt tag.

"Care for vegetation and green the motherland" PPT courseware 8:

"Care for Vegetation, Green the Motherland" PPT courseware 8 1. The role of green plants in the biosphere (1), green plants are producers (2), maintaining the balance of carbon dioxide and oxygen in the atmosphere (3), promoting the water cycle of the biosphere 2. my country's vegetation resources...

"Care for vegetation and green the motherland" PPT courseware 6:

"Care for Vegetation and Green the Motherland" PPT courseware 6 (1) Main types of vegetation in my country 1. The concept of vegetation - a group of plants that cover the earth's surface and live together regularly 2. Types Tropical rain forest evergreen broad-leaved forest deciduous Broadleaf forest, coniferous forest, steppe, desert...

"Care for vegetation and green the motherland" PPT courseware 5:

"Care for Vegetation, Green the Motherland" PPT Courseware 5 Unlocking Wisdom 1. What is vegetation? 2. What are the main vegetation types in my country? What characteristics does it have? 3. What are the main problems faced by vegetation in my country? 4. What measures are taken by countries with vegetation problems? do..

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