《2025年英语同步练习与测评高中英语必修1外研版青海专版》

C
What do three hearts, eight arms, and one huge brain add up to? An octopus (章鱼), a creature that can do amazing things.
Octopuses are extremely intelligent. They can learn new things just like humans. They’ve even learnt a few tricks to get them out of dangerous situations. If an octopus is threatened by an enemy, it can use some pretty incredible skills to get away. Octopuses don’t have teeth or sharp claws (爪子) to defend themselves. Instead, they use more clever ways to fool their attackers. Octopuses like to hide themselves in the sand on the bottom of the ocean floor, for it can change the colour of its skin to match the sand. And this colour change happens in less than a minute.
Some octopuses like to stay near rocks in shallow water. They can squeeze themselves into small spaces between the rocks to get out of reach of their enemies. Another way an octopus can hide is by shooting ink into the water. The ink forms a cloud that hides the octopus. By the time the ink clears, the octopus has swum away or hidden.
If you think that’s a neat trick, then you’ll love what else these creatures have up their sleeves. If an octopus is being attacked, it can actually make itself look like a poisonous sea snake. It will bury itself in the sand, leaving two arms outside. It will change the colour of those arms to match a sea snake.
7. What does the passage mainly talk about?
A. The reason why octopuses are intelligent.
B. The natural enemies of octopuses.
C. The magic power that an octopus has.
D. The tricks octopuses use to get out of danger.
(D)
8. What is special about octopuses?
A. They like to play tricks on other animals.
B. They are very clever and they are quick learners.
C. They have sharp teeth to protect themselves.
D. Some of the octopuses have three large brains.
(B)
9. The underlined word “squeeze” in paragraph 3 can be replaced by “______”.
A. change
B. force
C. turn
D. break
(B)
10. Which of the following statements is NOT the measure octopuses may take to protect themselves when facing a danger?
A. Change their arms’ colour to act as a sea snake.
B. Hide in the sand on the bottom of the ocean floor.
C. Float on the surface of the ocean.
D. Shoot ink at their enemies.
(C)

答案： 7. D 主旨大意题。本文主要讲述的是章鱼如何用花招躲避危险，因此选D。
8. B 细节理解题。由第二段的前两句可知，章鱼很聪明，并善于学习，因此选B。
9. B 词义猜测题。由第三段可知，章鱼遇到危险可以挤进狭小的岩石缝隙中以躲避敌人，因此选B。
10. C 细节理解题。通读全文可知，文章并没有提到章鱼通过浮在海面上躲避危险，因此选C。