Ищем ответы на вопросы True, False, Not Given вместе. Это не так трудно, как кажется.
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Новейший сборник Cambridge 16 уже циркулирует в Интернете.
Я смотрю один из текстов из этого сборника и рассказываю о том, как отвечать на вопросы True, False, Not Given.
Вы услышите базовые стратегии и как они работают на примерах.
При поиске ответов на вопросы True, False, Not Given:
Еще одна подсказка о том, как легко отвечать на вопросы True, False, Not Given, есть здесь.
В этом эпизоде подкаста использован текст 1 из теста 1 книги Cambridge IELTS 16.
Вопросы True, False, Not Given (правильные ответы смотрите в конце этого поста)
1) Polar bears suffer from various health problems due to the build-up of fat under their skin.
2) The study done by Liu and his colleagues compared different groups of polar bears.
3) Liu and colleagues were the first researchers to compare polar bears and brown bears genetically.
4) Polar bears are able to control their levels of bad cholesterol by genetic means.
5) Female polar bears are able to survive for about six months without food.
6) It was found that the bones of female polar bears were very weak when they came out of their dens in spring.
7) The polar bear’s mechanism for increasing bone density could also be used by people one day.
Why we need to protect polar bears
Polar bears are being increasingly threatened by the effects of climate change, but their disappearance could have far-reaching consequences. They are uniquely adapted to the extreme conditions of the Arctic Circle, where temperatures can reach —40°C. [вопрос 1] One reason for this is that they have up to 11 centimetres of fat underneath their skin. Humans with comparative levels of adipose tissue would be considered obese and would be likely to suffer from diabetes and heart disease. Yet the polar bear experiences no such consequences.
[вопрос 2 и 3] A 2014 study by Shi Ping Liu and colleagues sheds light on this mystery. They compared the genetic structure of polar bears with that of their closest relatives from a warmer climate, the brown bears. This allowed them to determine the genes that have allowed polar bears to survive in one of the toughest environments on Earth. [вопрос 4] Liu and his colleagues found the polar bears had a gene known as APoB, which reduces levels of low-density lipoproteins (LDLs) — a form of ‘bad’ cholesterol. In humans, mutations of this gene are associated with increased risk of heart disease. Polar bears may therefore be an important study model to understand heart disease in humans.
The genome of the polar bear may also provide the solution for another condition, one that particularly affects our older generation: osteoporosis. This is a disease where bones show reduced density, usually caused by insufficient exercise, reduced calcium intake or food starvation. Bone tissue is constantly being remodelled, meaning that bone is added or removed, depending on nutrient availability and the stress that the bone is under. Female polar bears, however, undergo extreme conditions during every pregnancy. [вопрос 5] Once autumn comes around, these females will dig maternity dens in the snow and will remain there throughout the winter, both before and after the birth of their cubs. This process results in about six months of fasting, where the female bears have to keep themselves and their cubs alive, depleting their own calcium and calorie reserves. Despite this, their bones remain strong and dense.
Physiologists Alanda Lennox and Allen Goodship found an explanation for this paradox in 2008. They discovered that pregnant bears were able to increase the density of their bones before they started to build their dens. [вопрос 6] In addition, six months later, when they finally emerged from the den with their cubs, there was no evidence of significant loss of bone density. Hibernating brown bears do not have this capacity and must therefore resort to major bone reformation in the following spring. [вопрос 7] If the mechanism of bone remodelling in polar bears can be understood, many bedridden humans, and even astronauts, could potentially benefit.
The medical benefits of the polar bear for humanity certainly have their importance in our conservation efforts, but these should not be the only factors taken into consideration. We tend to want to protect animals we think are intelligent and possess emotions, such as elephants and primates. Bears, on the other hand, seem to be perceived as stupid and in many cases violent. And yet anecdotal evidence from the field challenges those assumptions, suggesting for example that polar bears have good problem-solving abilities. A male bear called GoGo in Tennoji Zoo, Osaka, has even been observed making use of a tool to manipulate his environment. The bear used a tree branch on multiple occasions to dislodge a piece of meat hung out of his reach. Problem-solving ability has also been witnessed in wild polar bears, although not as obviously as with GoGo. A calculated move by a male bear involved running and jumping onto barrels in an attempt to get to a photographer standing on a platform four metres high.
In other studies, such as one by Alison Annes in 2008, polar bears showed deliberate and focussed manipulation. For example, Annes observed bears putting objects in piles and then knocking them over in what appeared to be a game. The study demonstrates that bears are capable of agile and thought-out behaviours. These examples suggest bears have greater creativity and problem-solving abilities than previously thought.
As for emotions while the evidence is once again anecdotal, many bears have been seen to hit out at ice and snow — seemingly out of frustration — when they have just missed out on a kill. Moreover, polar bears can form unusual relationships with other species, including playing with the dogs used to pull sleds in the Arctic. Remarkably, one hand-raised polar bear called Agee has formed a close relationship with her owner Mark Dumas to the point where they even swim together. This is even more astonishing since polar bears are known to actively hunt humans in the wild.
If climate change were to lead to their extinction, this would mean not only the loss of potential breakthroughs in human medicine, but more importantly, the disappearance of an intelligent, majestic animal.
Ответы:
1) Polar bears suffer from various health problems due to the build-up of fat under their skin. (текст говорит о том, что у медведей такой проблемы нет, она есть у людей) — FALSE
2) The study done by Liu and his colleagues compared different groups of polar bears. (они сравнивали не разные виды полярных медведей, а сравнивали полярных медведей и бурых медведей) — FALSE
3) Liu and colleagues were the first researchers to compare polar bears and brown bears genetically. (текст не упоминает, что они были ПЕРВЫМИ учеными, кто сравнивал медведей) — NOT GIVEN
4) Polar bears are able to control their levels of bad cholesterol by genetic means. (текст говорит об этом) — TRUE
5) Female polar bears are able to survive for about six months without food. (текст говорит об этом. fasting — это without food) — TRUE
6) It was found that the bones of female polar bears were very weak when they came out of their dens in spring. (текст говорит о том, что there was no evidence) — FALSE
7) The polar bear’s mechanism for increasing bone density could also be used by people one day. (текст говорит об этом) — TRUE
В этом эпизоде я делал аналогичный разбор по TFNG на примере другого текста из Cambridge IELTS 10.