Section B
Questions 9 to 12 are based on the passage you have just heard.
1.[单选题]______- A.They migrate to the Arctic Circle during the summer.
- B.They originate from Devon Island in the Arctic area.
- C.They travel as far as 400 kilometers in search of food.
- D.They have the ability to survive in extreme weathers.
2.[单选题]______- A.They can be used to deliver messages in times of emergency.
- B.They deliver pollutants from the ocean to their nesting sites.
- C.They carry plant seeds and spread them to faraway places.
- D.They are on the verge of extinction because of pollution.
3.[单选题]______- A.The threats humans pose to Arctic seabirds.
- B.The diminishing colonies for Arctic seabirds.
- C.The harm Arctic seabirds may cause to humans.
- D.The effects of the changing climate on Arctic seabirds.
4.[单选题]______- A.They were carried by the wind.
- B.They had become more poisonous.
- C.They were less than on the continent.
- D.They poisoned some of the fulmars.