《2025年通城学典课时作业本八年级英语上册译林版宿迁专版》

C(2025.南京期末)
China's Yangtze River is the world's third longest river.It is home
to hundreds of species of fish.However,the Chinese paddle fish(白鲜),
once common in the area,is no longer a member of this ecosystem(生态
系统). Scientists from China say that the species completely
disappeared between 2005 and 2010.
The Chinese paddle fish was one of the world's largest freshwater r
fish species.It could grow as long as seven metres.The fish had a big
nose that earned it the nickname “ elephant fish ". The Chinese
paddle fish was an ancient species..It first appeared in the Cretaceous
period.After living for about 150 million years,the species finally went
extinct because of human activities.
Overfishing in the 1970 s greatly reduced the species' population.
An average of 25 tons of the Chinese paddle fish were caught each year
during that period.And in 1981,the building of the Gezhouba Dam
divided the Chinese paddle fish into two groups.The two groups could
not mate(交配)with each other and reproduce.As a result,the species'
population became even smaller..
Scientists warn that many freshwater fish species in the Yangtze
River are in danger. The Chinese paddle fish is only the first to
disappear.Fortunately,China has taken action.In January,2021,the
country started a ten−year fishing ban on the Yangtze River..
( )53.When did the Chinese paddle fish completely disappear?
A.Before 2004. B.Between 2005 and 2010.
C.After 2015. D.Between 2010 and 2015.
( )54.Which of the following is not true about the Chinese paddle fish?
A.All Chinese paddle fish were seven metres long.
B.Its nickname was elephant fish.
C.It first appeared in the Cretaceous period..
D.It was one of the world's largest freshwater fish species.
( )55.What does the third paragraph tell us?
A.The Chinese paddle fish was an ancient species.
B.Many Chinese paddle fish were caught every year in
the 1970 s.
C.The building of the Gezhouba Dam affected the mating off
the Chinese paddle fish.
D.The Chinese paddle fish went extinct because of human
activities..
( )56.What can be inferred from the passage?
A.The extinction of the Chinese paddle fish has no effect on
the ecosystem of the Yangtze River.
B.Many freshwater fish species in the Yangtze River are in
safety.
C.We should try our best to take action to protect the
freshwater fish species.
D.The Chinese paddle fish is the first to be saved in the
Yangtze River.

答案： 53.B 54.A 55.D 56.C