What is the main threat to polar bears? A. Hunting. B. Pollution. C. Climate change. D. Loss of habitat. 相关知识点: 试题来源: 解析 C。中文解析:文章中明确提到气候变暖导致北极冰川融化,这减少了北极熊的狩猎场,使它们更难找到食物,所以主要威胁是气候变化。
选项C“Hunting more seals (the prey of polar bears)”(捕杀更多海豹,海豹是北极熊的猎物),这会影响北极熊的食物来源,破坏其生存环境。选项D“Building more tourist attractions in the Arctic”(在北极建造更多旅游景点),这可能会干扰北极熊的生活,破坏栖息地,所以答案是A。
What s the mission of Polar Bears International?A.Saving energy.B.Conducting scientific research.C.Seeking international cooperation.D.Saving polar bears and their home.A.SavingB.B.ConductingC.C.SeekingD.D.SavingE.A、A.SavingB.B.Conducting...
learning by osmosis(耳濡目染)in any school, but as a teacher and primary school head I have found that a child’s moral literacy is strengthened when they acquire the building blocks of good character such as consideration, courage and honor: qualities which are commonly known as virtue(美德...
Polar bears are at the top of the predators(捕食性动物)where they live. They play an important part in the ecosystem. They feed on seals, fish and deer. Several other animals depend on the kill of polar bears. The failure to save polar bears might result in loss of these predators. ...
91. What doesn't cut down the number of polar bears___?A. The Arctic ice melting.B. Hunting.C. The sea ice loss.D. Climate change. 相关知识点: 试题来源: 解析 最终答案: 根据以上分析,选项A、C、D都会导致北极熊数量减少,只有选项B不会导致北极熊数量减少。 所以,本题的正确答案是:B。...
D. People are killing too many polar bears. 相关知识点: 试题来源: 解析 A 细节题。由最后一段第二句 “Climate change is causing the disappearance of sea ice from which polar bears hunt seals.” 可推断北极熊灭绝的一个主要原因是气候变化导致冰川融化,而冰川融化导致北极熊找不到食物。而由最后...
根据“Climate change harms polar bears”可知是气候变化伤害了北极熊。故选B。 (2)题详解: 细节理解题。根据“Over 2/3 of the world’s polar bears are found in Canada.”可知世界上大部分北极熊在加拿大。故选A。 (3)题详解: 推理判断题。根据“Polar bears can walk over 3,000 km each month...
What are countries doing to protect polar bears? A. Nothing B. Making the Arctic warmer C. Working together D. Hunting polar bears 相关知识点: 试题来源: 解析 C。解析:To protect polar bears, many countries are working together. 为了保护北极熊,许多国家正在共同努力。反馈 收藏 ...
What helps polar bears keep warm? A. Their long legs B. Their sharp claws C. Their thick fur and body fat D. Their small E. ars 相关知识点: 试题来源: 解析 C。解析:文中提到“ Their thick fur and large amount of body fat help them keep warm.”,即厚皮毛和大量的体脂帮助北极熊...