Exercise 1: Read the text. Match the headings (A-F) below with the paragraphs (1-4). There are TWO extra headings.A.
Exercise 1: Read the text. Match the headings (A-F) below with the paragraphs (1-4). There are TWO extra headings.
A. Hopes for the future
B. Methane emissions in Canada and Brazil
C. The cow mask and its uses
D. Efforts to reduce methane emissions
E. Keeping cows healthy
F. Cows, methane and global warming
Trả lời cho các câu 1, 2, 3, 4, 5 dưới đây:
Methane-catching masks for cows
Đáp án đúng là: F
Đáp án cần điền là: F
There are more than one billion cows in the world, and cow farming is a large source of methane emissions. This colourless and odourless gas is much more powerful than CO₂ at warming the earth.
Đáp án đúng là: D
Đáp án cần điền là: D
Farmers and companies are developing solutions for decreasing cows' methane emissions. In Canada and Brazil, farmers started adding a special ingredient to their animals' feed to reduce cows' methane production. In New Zealand, scientists are working on a vaccine that can cut methane emissions. Rather than stopping methane emissions, a UK company has designed face masks to catch the gas before it is released.
Đáp án đúng là: C
Đáp án cần điền là: C
The masks will allow cows to continue their normal diet, but will turn methane into CO₂ and water. They can fit comfortably on the cow's head and can be adjusted to different head sizes. Sensors on the masks can notice when methane comes out of the cow's mouth and provide the percentage of the gas. This information can also be useful for farmers who can use it to identify the early signs of disease. For example, if a cow eats less, but produces more methane than usual, it may have a health problem.
Đáp án đúng là: A
Đáp án cần điền là: A
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