Which of the following is not a species used to replace a rich ecosystem?
A. rye
B. eucalyptus
C. herbs
D. pine
Giải bởi Vietjack
Đáp án đúng là: C
Giải thích: Dựa vào câu: We cut down rich rainforests and replace them with one species plantations, such as pine and eucalyptus. We plough up meadows rich in different grasses and herbs and replace them with one grass, for instance rye or wheat.
Dịch: Chúng tôi chặt phá những khu rừng nhiệt đới phong phú và thay thế chúng bằng những rừng trồng một loài, chẳng hạn như thông và bạch đàn. Chúng tôi cày xới những đồng cỏ có nhiều loại cỏ và thảo mộc khác nhau và thay thế chúng bằng một loại cỏ, chẳng hạn như lúa mạch đen hoặc lúa mì.
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27.
In 1972 the Australian government introduced a quota system which allowed a certain number of kangaroos to be killed or “culled” every year. Legislation was introduced because farmers claimed that the kangaroos were (23) __________ their crops. The problem is that while two and a half million kangaroos can be killed legally each year, a further two and a half million are killed illegally. The animals are killed for a (24) __________ of reasons. The main one, however, is that kangaroo meat is sold for human consumption usually in the (25) __________ of steaks – or is used as pet food. There are also thousands of dollars to be made from the sale of their skins.
The environmental group Greenpeace and Australia’s Animal Liberation (AAL) are now campaigning for a ban (26) __________ the sale of all kangaroo products. They hope that this will stop unscrupulous farmers killing the animal for profit. A spokesman for AAL said, “People aren’t concerned because there are still over six million kangaroos in Australia so they are hardly an endangered species. People just don’t care about issues like this unless there is a real threat. But we know certain types have already become extinct in some areas. We must act now (27) __________ it is too late.
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
The mining (A) of materials often bring about (B) the destruction (C) of landscapes and wildlife (D) habitats.
Some (A) snakes have hollow teeth they are called (B) fangs that they use (C) to poison their (D) victims.
Many (A) environmentalists fear (B) that the earth will run out essential (C) natural resources before (D) the end of the 25th century.
According to the passage, what might be the final result of the simplification of natural ecosystems?
Jessica __________ in love until she ___________ Ben two years ago.
In some countries environmental organizations have been ___________ to inform people and gain their support.
