51. What will happen by 2100, according to a new study?
A) King penguins in the Antarctic will be on the verge of dying out.
B) Sea water will rise to a much higher level around the Antarctic.
C) The melting ice cover will destroy the great Antarctic wilderness.
D) The pristine waters around the Antarctic will disappear forever.
查看答案
52. What do we learn from the findings of a separate study?
A) Shrinking krill population and rising temperatures could force Antarctic whales to migrate.
B) Human activities have accelerated climate change in the Antarctic region in recent years.
C) Industrial fishing and climate change could be fatal to certain Antarctic species.
D) Krill fishing in the Antarctic has worsened the pollution of the pristine waters.
53. What does the passage say about king penguins?
A) They will turn out to be the second-largest species of birds to become extinct.
B) Many of them will have to migrate to isolated islands in the Southern Ocean.
C) They feed primarily on only a few kinds of krill in the Antarctic Polar Front.
D) The majority of them may have to find new breeding grounds in the future.
54. What happens when sea levels rise in the Antarctic?
A) Many baby king penguins can't have food in time.
B) Many king penguins could no longer live on kill.
C) Whales will invade king penguins' breeding grounds.
D) Whales will have to travel long distances to find food.
55. What do we learn about the Southern Ocean?
A) The king penguins there are reluctant to leave for new breeding grounds.
B) Its conservation is key to the sustainable propagation of Antarctic species.
C) It is most likely to become the ultimate retreat for species like the king penguin.
D) Only a few of its islands can serve as luge breeding grounds for king penguins.
微信支付 
支付宝支付