Đọc đoạn văn sau và chọn đáp án đúng cho mỗi câu hỏi :
Species that belong to an area are said to be native species. Typically, they have been part of a given biological landscape for a long period, and they are well adapted to the local environment and to the presence of other native species in the same general habitat. Exotic species are interlopers, foreign elements introduced intentionally or accidentally into new settings through human activities. In one context an introduced species may cause no obvious problems and may, over time, be regarded as being just as "natural" as any native species in the same habitat. In another context, exotics may seriously disrupt delicate ecological balances and create a cascade of unintended consequences. The worst of these unintended consequences arise when introduced species put native species in destruction by preying on them, altering their habitats, or out-competing them in the struggle for food resources. Although biological introductions have affected environments the world over, the most destructive, effects have occurred on islands, where introduced insects, cats, pigs, rats, mongooses, and other nonnative species have caused the grave endangerment or outright extinction of literally hundreds of species during the past 500 years. One of other reason to cause species extinction is overexploitation. This word refers to the utilization of a species at a rate that is likely to cause its extreme endangerment or outright extinction. Among many examples of severe overexploitation, the case of the great whales stands out in special relief. By the middle of the 20th century, unrestricted whaling had brought many species of whales to incredibly low population sizes. In response to public pressure, in 1982 a number of nations, including the USA, agreed to an international moratorium on whaling. As a direct result, some whale species which are thought to have been on extinction's doorstep 25 years ago have made amazing comebacks, such as grey whales in the western Pacific. Others remain at great risk. Many other species, however, continue to suffer high rates of exploitation because of the trade in animal parts. Currently, the demand for animal parts is centered in several parts of Asia where there is a strong market for traditional medicines made from items like tiger bone and rhino horn.
Tiger bone and rhino horn _______.
Trả lời bởi giáo viên
Xương hổ và sừng tê giác_____.
A. không phổ biến ở thị trường Châu Á
B. không bao giờ buôn bán các bộ phận động vật
C. được sử dụng để làm thuốc cổ truyền
D. không thể tìm thấy ở thị trường Châu Á
Thông tin: Currently, the demand for animal parts is centered in several parts of Asia where there is a strong market for traditional medicines made from items like tiger bone and rhino horn.
Tạm dịch: Hiện nay, nhu cầu về các bộ phận động vật được tập trung ở một số khu vực của châu Á, nơi có một thị trường mạnh mẽ cho các loại thuốc truyền thống được làm từ các mặt hàng như xương hổ và sừng tê giác.
Hướng dẫn giải:
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