内容正文:
九年级(全)
Units 7~8
一、完形第一节
"The dolphins are really good at finding fish in
A.them B.so C.for
the water and herding(驱赶)them to the coast,"
D.believed E.but F.third
Cantor said."The fishermen are really good at
China is a great country with a long history.
catching the fish with their nets."Once the fish are
Let us see some of the greatest ancient mysteries in
caught in the nets,dolphins can move in and get
China.
some for themselves.
With an area of 212 square kilometers,Fuxian
Cantor's study described how fishermen and
Lake is the 1.
largest lake in Yunnan
dolphins give cues(信号)to each other during
Province.In 2001,a research team discovered a
fishing.When dolphins find fish,they herd them to
stonework under the lake,covering an area of
the coast..Then they arch(拱起)their backs in
nearly 2.4 to 2.7 square kilometers.Researchers
front of the fishermen to tell them to cast nets.
said that the stonework was 1,750 years old.It's
Fishermen will then cast the nets right away,or
2.
that it was remains(遗迹)of the
they may lose the best chance.Fishermen need to
ancient Dian Kingdom which mysteriously
be well-trained to understand the cues from
disappeared after 86 BC.
dolphins,said cantor.
The Huashan Caves are near Mount Huangshan
The study found that fishermen are 17 times
in Anhui Province.They're from 10 to 20 meters in
more likely to catch fish by working with dolphins.
height.36 caves were found among the hills.Some
At the same time,cooperative dolphins have 13
of 3.
are filled with water,while others
percent higher survival rates than other dolphins.
are two-floor caves.As no historical records tell
"Human-animal partnerships have been rare
what those caves were used 4.
,the
(罕见的)throughout history.But they give us an
idea of how positive our human interactions can be
reason for creating those caves remains a mystery.
with nature,"Cantor said.
The Taklamakan Desert is the largest desert in
)1.Why is the fishing team special?
China.Ancient people believed that once you
A