Câu hỏi:
19/03/2020 473Read 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.
The development of genetically modified (GM) plants and animals had led to a huge global controversy. Opponents say that GM “Frankenfoods” are a threat to our well-being, and proponents say that the risks are minimal. There is one aspect of the war over GM that is often overlooked. Anyone who wears a cotton shirt these days is using a GM crop. Cotton is the only major non-food GM crop at present, but others are coming.
GM cotton plants that are not food have not stopped the most passionate GM opponents from objecting. If GM cotton is grown in a field next to fields of non- GM cotton, they argue, then how to keep genes from being transferred from field to field. This danger, however, is not as compelling to the public as possible health hazards in food, so there is no great fury over GM cotton.
GM cotton seeds produce higher yields, and they do without the need for pesticides. Planting of GM cotton has increased fivefold since 1997; three-quarter of cotton in America, and over half in China, is now GM. Farmers like it because it increases their profits.
Other options for non-food GM include new variety of flowers with different colors or scents, tougher grasses for lawns, and plants designed to soak up pollutants from the soil. The paper industry provides another example of potential for GM to help produce better and cheaper products. Paper is made from pulp, and pulp is generally made from trees. Researchers in New Zealand and Chile have been working on insect-resistant pines, and a Japanese firm has combined carrot genes with tree genes to make them grow better in poor soil.
Another interesting case is that of tobacco. It is not food crop, but it is consumed, and GM tobacco plants with both more and less nicotine have been created. The tobacco plant, however, is an ideal target for GM, since its genetics are very well understood and it produces a lot of leaves. The value of the drugs that could be produced by GM tobacco is so high, many fanners could switch from growing tobacco for cigarettes to growing it for medicine. Since medical cost is rising, consumers would also be happy to use drugs produced in bulk by GM tobacco.
Why does the author mention a cotton shirt in the first paragraph?
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Trả lời:
Đáp án B.
Dịch câu hỏi: Tại sao tác giả đề cập đến một chiếc áo bông trong đoạn đầu tiên?
A. Để chỉ ra rằng cotton là một trong những chất liệu phổ biến nhất cho quần áo.
B. Để đưa ra một ví dụ về một sản phẩm biến đổi gen thông thường không phải là thực phẩm.
C. Để đưa ra một ví dụ về một cuộc tranh cãi xung quanh các sản phẩm biến đổi gen.
D. Để chỉ ra rằng rủi ro của các sản phẩm biến đổi gen là tối thiểu.
Thoong tin ở đoạn 1: “Anyone who wears a cotton shirt these days is using a GM crop.” (Bất cứ ai mặc áo bông ngày nay đều sử dụng cây trồng biến đổi gen.)
Đã bán 152
Đã bán 114
Đã bán 132
Đã bán 47
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