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 43 to 50.
Smallpox was the first widespread disease to be eliminated by human intervention. Known as a highly contagious viral disease, it broke out in Europe, causing the deaths of millions of people until the vaccination was invented by Edward Jenner around 1800. In many nations, it was a terror, a fatal disease until very recently. Its victims suffer high fever, vomiting and painful, itchy, pustules that left scars. In villages and cities all over the world, people were worried about suffering smallpox.
In May, 1966, the World Health Organization (WHO), an agency of the United Nations was authorized to initiate a global campaign to eradicate smallpox. The goal was to eliminate the disease in one decade. At the time, the disease posed a serious threat to people in more than thirty nations. Because similar projects for malaria and yellow fever had failed, few believed that smallpox could actually be eradicated but eleven years after the initial organization of the campaign, no cases were reported in the field.
The strategy was not only to provide mass vaccinations but also to isolate patients with active smallpox in order to contain the spread of the disease and to break the chain of human transmission. Rewards for reporting smallpox assisted in motivating the public to aid health workers. One by one, each small-pox victim was sought out, removed from contact with others and treated. At the same time, the entire village where the victim had lived was vaccinated.
By April of 1978 WHO officials announced that they had isolated the last known case of the disease but health workers continued to search for new cases for additional years to be completely sure. In May, 1980, a formal statement was made to the global community. Today smallpox is no longer a threat to humanity. Routine vaccinations have been stopped worldwide
It can be inferred from the passage that________
A. yellow fever have been reported this year
B. no new cases of smallpox have been reported this year
C. smallpox victims no longer die when they contact the disease
D. smallpox is not transmitted from one person to another
Đáp án B
Có thể suy ra từ bài đọc rằng................
A. Bệnh sốt rét đã được báo cáo từ năm ngoái.
B. Không có trường hợp mắc bệnh đậu mùa mới được báo cáo trong năm nay.
C. Những bệnh nhân đậu mùa không còn chết khi tiếp xúc với căn bệnh này nữa.
D. Bệnh đậu mùa không lây từ người này sang người khác.
Dẫn chứng: Câu A không được đề cập đến thời điểm [ this year] Câu C không được đề cập đến trong bài. Câu D sai nghĩa hoàn toàn vì bệnh đậu mùa là bệnh truyền nhiễm.