《2026年名校金典课堂九年级英语上册人教版成都专版》

四、阅读短文，根据短文内容选择正确答案。
When we get wet， we need a towel to get ourselves dry. When a dog gets wet， all it needs is to shake its body. A study showed that a wet dog can throw off half the water on its body by shaking for less than a second. In fact， this common act of dogs works better than a washing machine.
The study found that animal shaking begins with the head and ends with the tail. During a shake， the animal's head， body and skin（皮）all move. Smaller animals must shake faster than bigger animals to get water off. For example， in one second， a mouse can shake 18 times， a dog 6 times， and a bear 4 times. Bigger animals can get their bodies dry with fewer shakes.
For animals， shaking is not just about getting themselves dry. It is also about saving their lives. Being wet makes animals heavier， and that makes it harder to run. In the animal world， how fast an animal can run often decides whether it will live or not. Maybe that's why the "wet-dog shake" has become a common habit of many animals.
The "wet-dog shake" teaches us a lot! Scientists are working on a new study on how dogs shake off water. If they get any achievements， they can use them for new inventions to make people's life easier.
(B)1. What does the passage say about shaking?
A. Animals use shaking as a way to make other animals scared and run away.

B. Shaking themselves dry may let animals run faster in dangerous situations.
C. The shaking of different kinds of animals begins with different body parts.
(A)2. Which of the following pictures is correct according to the second paragraph?

(C)3. What is the main purpose of the new study in the last paragraph?
A. To discuss the similar living habits of different animals.
B. To explain how different kinds of animals shake off water.
C. To find out helpful ideas for humans from animal actions.
(C)4. What can we learn from the passage?
A. Some kinds of small animals shake less than some bigger animals.
B. The idea of washing machines came from the shaking of large animals.
C. Larger animals get themselves drier at each shake than smaller animals.
(C)5. What might the passage talk about next?
A. Creating some pet games for dogs.
B. Developing better pet care service.
C. Discussing possible new inventions.

答案： B; A; C; C; C