Đọc hiểu -TOEFL- Bài 33
Đọc đoạn văn sau và trả lời các câu hỏi:
Scientists believe they now have scientific evidence to prove that1. Which of the following is the best title for the passage?
ecosystems work better when there is a greater variety of species
within them. This bio-diversity is being lost destroying natural
mechanisms that could repair the damage caused by man.
5
Findings show that losing plants and animals is not only reducing
our quality of life but actually endangering our very existence.
We cut down rich rain-forests and replace them with one species plantations,
such as pine and eucalyptus. We plough up meadows rich in different
10 grasses and herbs and replace them with one grass, for instance rye
or wheat.
When a natural ecosystem is simplified the basic processes in the
ecosystem are altered and even damaged. Without their bio-diversity
15 they are not able to serve as the natural cleaners of our planet.
No longer are they able to absorb the carbon dioxide that is being
produced in excess. The result is global warming, caused by the increase
in the "greenhouse effect", and ultimately, or even sooner, there
will be a change in the world's climate.
2. Which of the following is NOT a species used to replace a rich ecosystem?
3. What is the purpose of paragraph 2?
4. What according to the passage might be the final result of the simplification of natural ecosystems?
5. What is the author's attitude to the loss of biodiversity?
Xem lại bài Reading-Comprehension-Lesson 32 và bài Reading-Comprehension-Lesson 33
