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KEY→P40
范畴:人与自然 主题:自然生态 体裁:说明文 难度:★★ 建议用时:8分钟 评价:___/10
Welcome to the Amazon Rainforest. As the largest rainforest in the world, it plays an important role in keeping the balanced ecosystem(生态系统) on the earth. With an area of around 6 million square kilometres, the Amazon Rainforest is more than half the size of China. This area has many species(物种). Actually, you can find about one tenth of the species in the world here. That's to say, of the 390,000 plant species known to us, you can find more than 40,000 in the Amazon.
There are different levels in the forest. At the bottom is a system of roots under the ground. Above that is leaf litter(落叶) on the dark forest floor. The next level is made up of shorter plants with large leaves. Then there are the very tall ancient hardwoods, and finally the tops of the trees which are taller than any other level of trees in the forest. Each level of the forest forms its own little world, home to different kinds of living things.
More than 1,300 species of birds and over 400 species of mammals(哺乳动物) hide among the forest's plant life. This jaguar(美洲虎) is one example. While a large number of jaguars live here, they are only one part of this forest's food chain(食物链). They feed on at least 87 species, including frogs. These frogs, in turn, feed on insects which eat leaves and fruit.
The Amazon Rainforest is a treasure house of species that can be used for food or medicine. What's more, the Amazon Rainforest breathes life into the planet by producing over 20 per cent of all the earth's oxygen. So it is often known as the "lungs of the planet".
根据短文内容,完成表格。(每空一词)
The Amazon Rainforest
Introduction The Amazon Rainforest is the largest rainforest in the world, which helps keep the 1. ____ of the earth's ecosystem.
Species Plant species Number: over 2. ____ species Different levels in the forest: · the 3. ____: a system of roots · the second level: leaf litter · the third level: shorter plants with large 4. ____ · the fourth level: towering ancient hardwoods · the top: the tops of the 5. ____ trees
6. ____ species Number: more than 1,300 species of 7. ____ and over 400 species of mammals One of the food chains in the forest: leaves and fruit →8. ____ → frogs →jaguars
Importance · The Amazon Rainforest is a 9. ____ house of species that can be used for food or medicine. · Known as the "lungs of the planet", the Amazon Rainforest 10. ____ over 20% of all the earth's oxygen.
KEY→P40
范畴:人与自然 主题:自然生态 体裁:说明文 难度:★★ 建议用时:8分钟 评价:___/10
Welcome to the Amazon Rainforest. As the largest rainforest in the world, it plays an important role in keeping the balanced ecosystem(生态系统) on the earth. With an area of around 6 million square kilometres, the Amazon Rainforest is more than half the size of China. This area has many species(物种). Actually, you can find about one tenth of the species in the world here. That's to say, of the 390,000 plant species known to us, you can find more than 40,000 in the Amazon.
There are different levels in the forest. At the bottom is a system of roots under the ground. Above that is leaf litter(落叶) on the dark forest floor. The next level is made up of shorter plants with large leaves. Then there are the very tall ancient hardwoods, and finally the tops of the trees which are taller than any other level of trees in the forest. Each level of the forest forms its own little world, home to different kinds of living things.
More than 1,300 species of birds and over 400 species of mammals(哺乳动物) hide among the forest's plant life. This jaguar(美洲虎) is one example. While a large number of jaguars live here, they are only one part of this forest's food chain(食物链). They feed on at least 87 species, including frogs. These frogs, in turn, feed on insects which eat leaves and fruit.
The Amazon Rainforest is a treasure house of species that can be used for food or medicine. What's more, the Amazon Rainforest breathes life into the planet by producing over 20 per cent of all the earth's oxygen. So it is often known as the "lungs of the planet".
根据短文内容,完成表格。(每空一词)
The Amazon Rainforest
Introduction The Amazon Rainforest is the largest rainforest in the world, which helps keep the 1. ____ of the earth's ecosystem.
Species Plant species Number: over 2. ____ species Different levels in the forest: · the 3. ____: a system of roots · the second level: leaf litter · the third level: shorter plants with large 4. ____ · the fourth level: towering ancient hardwoods · the top: the tops of the 5. ____ trees
6. ____ species Number: more than 1,300 species of 7. ____ and over 400 species of mammals One of the food chains in the forest: leaves and fruit →8. ____ → frogs →jaguars
Importance · The Amazon Rainforest is a 9. ____ house of species that can be used for food or medicine. · Known as the "lungs of the planet", the Amazon Rainforest 10. ____ over 20% of all the earth's oxygen.
答案
1. balance 2. 40,000 3. bottom 4. leaves 5. tallest 6. Animal 7. birds 8. insects 9. treasure 10. produces
