搜题
2023-10-20 10:00:27 | 来源：网络及考生回忆
97、完形填空
（7）
A、climate change
B、longer
C、serious
D、low
E、suffered
F、severity
G、heat
H、continued
I、broadcast
J、promote
K、in trouble
L、surprise
98、完形填空
（8）
A、climate change
B、longer
C、serious
D、low
E、suffered
F、severity
G、heat
H、continued
I、broadcast
J、promote
K、in trouble
L、surprise
99、完形填空
（9）
A、climate change
B、longer
C、serious
D、low
E、suffered
F、severity
G、heat
H、continued
I、broadcast
J、promote
K、in trouble
L、surprise
100、完形填空
（10）
A、climate change
B、longer
C、serious
D、low
E、suffered
F、severity
G、heat
H、continued
I、broadcast
J、promote
K、in trouble
L、surprise
材料
The International Union for Conservation of Nature and Natural Resources（IUCN）announced the extinction of the Chinese paddlefish and the wild Yangtze sturgeon （鲟鱼）on Thursday in its updated Red List of threatened species.The global sturgeon reassessment published by the IUCN on Thursday revealed that 100 percent of the world's remaining 26 sturgeon species are now at risk of extinction,up from 85 percent in 2009.The reassessment has also confirmed the extinction of the Chinese paddlefish（Psephurus gladius）and that the Yangtze Sturgeon（Acipenser dabryanus）has moved.from endangered,to extinct in the wild.Additionally.17 species are now critically endangered,three are endangered and five are vulnerable on the IUCN Red List.
According to the reassessment.sturgeons have been overfished for their meat and caviar for centuries.Therefore.stronger enforcement of regulations against the illegal sale of sturgeon meat and caviar is critical to stop further declines.Besides,dams affect all sturgeon species migrating to their breeding grounds,while rivers warming due to climate change further disrupts sturgeon reproduction.
The restoration of freshwater ecosystems and building effective fish passages,together with restocking sturgeon in captivity,are key measures to support the long-term survival of the world's sturgeons.
Both Chinese paddlefish and Yangtze Sturgeon are representative aquatic species of the Yangtze River Basin.
The Chinese paddlefish is one of the world's largest freshwater fish species with a length of up to 7 meters. It is endemic to China and is flagship species of the Yangtze River.The Chinese paddlefish was listed as a first-class state protected animal in China in 1989 and was first declared"critically endangered"by the IUCN in 1996.IUCN experts have said there is no image evidence of the species since 2009.It was last seen alive in 2003、Along with the loss of the Chinese paddlefish,another sturgeon species,the Yangtze sturgeon is now classified as"extinct in the wild."Existing individuals in the river are the result of the release of captive stocks.
Wild populations of the Siberian sturgeon,the third species in Asia mentioned in the assessment and widely used in aquaculture,were also moved to the highest threat category of critically endangered.
101、What cannot be known about the Chinese sturgeon?（ ）
A、Siberian sturgeon, widely used in aquaculture, is also in enormous peril.
B、The Yangtze sturgeon is considered as "extinct in the wild.”, and any trace of it is now uncaptured.
C、Chinese white sturgeon has been listed as China's first-class national protected animal, which was last seen alive in 2003、D、Chinese paddlefish is one of the largest freshwater fish species and is unique to the Yangtze River in China.
102、Which of the following is true about the first paragraph?（ ）
A、Most of the world's remaining 26 sturgeon species are now endangered and some are even critically endangered.
B、The wild Yangtze sturgeon is critically endangered according to the newly-updated Red list.
C、IUCN announced 26 sturgeon species moved from endangered to extinct
D、All sturgeon species are now at severe risk of extinction. far more dire than before.
103、What does the underlined word mean in the passage?（ ）
A、Indifferent
B、Numerous
C、Indigenous
D、Dangerous
104、According to the article, which of the following is not the reason for the extinction of sturgeon?（ ）
A、Water pollution.
B、Overfishing.
C、Climate change.
D、Construction of the dam.
105、Which of the following is not effective measures to stop sturgeon declining?（ ）
A、Cultivating human bred sturgeon.
B、Creating fish passage in water resources.
C、Banning illegal sale of sturgeon caviar.
D、Stocking wild sturgeon.
注：试题来源于考生回忆及网络，仅供参考！
