Câu hỏi: Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42
Scientists have identified two ways in which species disappear. The first is through ordinary or "background" extinctions, where species that fail to adapt are slowly replaced by more adaptable life forms. The second is when large numbers of species go to the wall in relatively short periods of biological time. There have been five such extinctions, each provoked by cataclysmic evolutionary events caused by some geological eruption, climate shift, or space junk slamming into the Earth. Scientists now believe that another mass extinction of species is currently under way – and this time human fingerprints are on the trigger.
How are we are doing it? Simply by demanding more and more space for ourselves. In our assault on the ecosystems around us we have used a number of tools, from spear and gun to bulldozer and chainsaw. Certain especially rich ecosystems have proved the most vulnerable. In Hawaii more than half of the native birds are now gone – some 50 species. Such carnage has taken place all across the island communities of the Pacific and Indian oceans. While many species were hunted to extinction, others simply succumbed to the " introduced predators' that humans brought with them: the cat, the dog, the pig, and the rat.
Today the tempo of extinction is picking up speed. Hunting is no longer the major culprit, although rare birds and animals continue to be butchered for their skin, feathers, tusks, and internal organs, or taken as savage pets. Today the main threat comes from the destruction of the habitat of wild plants, animals, and insects need to survive. The draining and damming of wetland and river courses threatens the aquatic food chain and our own seafood industry. Overfishing and the destruction of fragile coral reefs destroy ocean biodiversity. Deforestation is taking a staggering toll, particularly in the tropics where the most global biodiversity is at risk. The shinking rainforest cover of the Congo and Amazon river basins and such place as Borneo and Madagascar have a wealth of species per hectare existing nowhere else. As those precious hectares are drowned or turned into arid pasture and cropland, such species disappear forever.
Source: Final Countdown Practice Tests by D.F Piniaris, Heinle Cengage Learning, 2010
It can be inferred from the passage that ………………
A. the current mass extinction is different from the other five in that it is caused by humans
B. hunting is the major contributing factor that speeds up the extinction of species
C. habitat destruction makes a minor contribution to the current mass extinction of species
D. it's impossible for scientists to identify the causes of mass extinctions of species
Scientists have identified two ways in which species disappear. The first is through ordinary or "background" extinctions, where species that fail to adapt are slowly replaced by more adaptable life forms. The second is when large numbers of species go to the wall in relatively short periods of biological time. There have been five such extinctions, each provoked by cataclysmic evolutionary events caused by some geological eruption, climate shift, or space junk slamming into the Earth. Scientists now believe that another mass extinction of species is currently under way – and this time human fingerprints are on the trigger.
How are we are doing it? Simply by demanding more and more space for ourselves. In our assault on the ecosystems around us we have used a number of tools, from spear and gun to bulldozer and chainsaw. Certain especially rich ecosystems have proved the most vulnerable. In Hawaii more than half of the native birds are now gone – some 50 species. Such carnage has taken place all across the island communities of the Pacific and Indian oceans. While many species were hunted to extinction, others simply succumbed to the " introduced predators' that humans brought with them: the cat, the dog, the pig, and the rat.
Today the tempo of extinction is picking up speed. Hunting is no longer the major culprit, although rare birds and animals continue to be butchered for their skin, feathers, tusks, and internal organs, or taken as savage pets. Today the main threat comes from the destruction of the habitat of wild plants, animals, and insects need to survive. The draining and damming of wetland and river courses threatens the aquatic food chain and our own seafood industry. Overfishing and the destruction of fragile coral reefs destroy ocean biodiversity. Deforestation is taking a staggering toll, particularly in the tropics where the most global biodiversity is at risk. The shinking rainforest cover of the Congo and Amazon river basins and such place as Borneo and Madagascar have a wealth of species per hectare existing nowhere else. As those precious hectares are drowned or turned into arid pasture and cropland, such species disappear forever.
Source: Final Countdown Practice Tests by D.F Piniaris, Heinle Cengage Learning, 2010
It can be inferred from the passage that ………………
A. the current mass extinction is different from the other five in that it is caused by humans
B. hunting is the major contributing factor that speeds up the extinction of species
C. habitat destruction makes a minor contribution to the current mass extinction of species
D. it's impossible for scientists to identify the causes of mass extinctions of species
Kiến thức về đọc và suy luận
Có thể được suy ra từ đoạn văn rằng ………..
Các phương án
A. sự tuyệt chủng hàng loạt hiện nay khác với năm trường hợp khác ở chỗ nó do con người gây ra
B. săn bắn là yếu tố chính góp phần làm tăng tốc độ tuyệt chủng của các loài
C. sự hủy hoại môi trường sống chỉ là một phần nhỏ vào sự tuyệt chủng hàng loạt của loài hiện nay
D. các nhà khoa học không thể xác định được nguyên nhân gây ra sự tuyệt chủng hàng loạt của các loài
Giải thích
Thông tin: There have been five such extinctions, each provoked by cataclysmic evolutionary events caused by some geological eruption, climate shift, or space junk slamming into the Earth. Scientists now believe that another mass extinction of species is currently under way – and this time human fingerprints are on the trigger.
=> chọn A
Tạm dịch:
– Đã có năm cuộc tuyệt chủng như vậy, mỗi sự kiện bị gây ra bởi các sự kiện tiến hóa thảm khốc bởi một số vụ phun trào địa chất, biến đổi khí hậu hoặc rác vũ trụ rơi xuống Trái đất. Các nhà khoa học hiện tin rằng một cuộc tuyệt chủng hàng loạt khác đang tiếp diễn – và lần này thì có dính dáng đến bàn tay con người.
Có thể được suy ra từ đoạn văn rằng ………..
Các phương án
A. sự tuyệt chủng hàng loạt hiện nay khác với năm trường hợp khác ở chỗ nó do con người gây ra
B. săn bắn là yếu tố chính góp phần làm tăng tốc độ tuyệt chủng của các loài
C. sự hủy hoại môi trường sống chỉ là một phần nhỏ vào sự tuyệt chủng hàng loạt của loài hiện nay
D. các nhà khoa học không thể xác định được nguyên nhân gây ra sự tuyệt chủng hàng loạt của các loài
Giải thích
Thông tin: There have been five such extinctions, each provoked by cataclysmic evolutionary events caused by some geological eruption, climate shift, or space junk slamming into the Earth. Scientists now believe that another mass extinction of species is currently under way – and this time human fingerprints are on the trigger.
=> chọn A
Tạm dịch:
– Đã có năm cuộc tuyệt chủng như vậy, mỗi sự kiện bị gây ra bởi các sự kiện tiến hóa thảm khốc bởi một số vụ phun trào địa chất, biến đổi khí hậu hoặc rác vũ trụ rơi xuống Trái đất. Các nhà khoa học hiện tin rằng một cuộc tuyệt chủng hàng loạt khác đang tiếp diễn – và lần này thì có dính dáng đến bàn tay con người.
Đáp án A.