《2025年课时提优计划作业本八年级英语上册译林版连云港专版》

(A)
Blue whales are the largest animals in the sea. They are much larger than elephants—the largest animals on land. The largest whales are more than 30 metres long.
Whales live in water, but they are not fish. Like people, they have warm blood. They breathe air through a hole in the top of their head. They often stay under water for ten to forty-five minutes without breathing, or even longer.
There are two kinds of whales. One kind has a big mouth with teeth. Its mouth measures four metres in depth. It can eat other larger animals of the sea. This kind is called the killer whale.
The other kind of whales is much larger than the killer whale. It has no teeth. Instead, it has rows of bones in its mouth. Small sea life is caught in these bones. These whales also have a very small throat(咽喉). They cannot swallow anything larger than an apple.
Baby whales live with their mothers for several years. During this time, sharks can kill them. It takes up to ten years for a baby to grow into a strong whale.
(B)26. How does a whale breathe in the sea?
A. It breathes with its mouth.
B. It breathes through a hole in its head.
C. It breathes like an elephant.
D. It breathes like a fish.
(C)27. How deep is a killer whale’s mouth?
A. Fifteen metres. B. Ten metres.
C. Four metres. D. Two metres.
(C)28. What do the largest whales like to eat?
A. Apples.
B. Killer whales.
C. Small sea life.
D. Big sea life.
(D)29. It takes a baby whale up to ______ years to grow into a strong one.
A. four B. five
C. seven D. ten
(B)30. What is the largest animal in the sea?
A. The elephant. B. The blue whale.
C. The fish. D. The tiger.

答案： 26.B 27.C 28.C 29.D 30.B