《2025年通城学典组合训练八年级英语人教版江西专版》

D
KEY→P21
范畴:人与自然 主题:与自然和谐共生 体裁:说明文 难度:★★★ 建议用时:7分钟 评价:____/5
How did wild wolves become pet dogs? No one is quite sure.
Back then, people didn’t live in houses. They moved from place to place, hunting for food. They didn’t know how to plant and grow food yet, and they didn’t keep any trained animals. People and wolves were not friends then (and still aren’t). So what happened?
A few clever wolves might follow people to take their leftovers(残羹剩饭). Or a few clever people might follow wolves to get hunting help.
Though, those first people and wolves got together, the wolves weren’t pets yet. Even if some wolves had been “trained”, their babies would still be born wild and need to be trained themselves. But people began to keep and raise and train the friendliest, gentlest babies. They let the others go back into the wild.
And when those trained pups grew up and had babies, people again chose to keep the friendliest, gentlest pups. The same thing happened again and again and again. After many, many, many times, something changed.
The pups began to look different. They had rounder heads, smaller teeth, and curlier tails. Their coats came in more colors. They wagged(摇摆) their tails and barked. They no longer needed to be trained. They depended on people for food and a home. They had become dogs. Gradually, people learned how to choose and breed(饲养) dogs to do different jobs. Brave, little dogs could catch rats and other pests underground. Fast, long - legged dogs could find and chase animals for hunters.
Now we have hundreds of different kinds of dogs. But no matter what they look like now, long long ago, every single type was once—a wolf.
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( )1. What did people do before they learned to plant and grow food?
A. They lived in houses and kept trained animals.
B. They moved around to hunt for food.
C. They made friends with wolves.
D. They bred dogs to do different jobs.
( )2. What can we infer from the passage?
A. It took a long time for wolves to become dogs.
B. Wolves were always friendly to humans.
C. People didn’t like wolves at all.
D. All wolves can be easily trained.
( )3. Put the following events in the correct order according to the passage.
① People learned to breed dogs to do different jobs.
② Wolves and people got together for different reasons.
③ Wolves’ babies began to be trained.
④ Wolves became dogs and depended on people.
⑤ People moved from place to place to hunt for food.
A. ⑤ - ② - ③ - ④ - ① B. ⑤ - ① - ② - ③ - ④
C. ② - ⑤ - ③ - ④ - ① D. ② - ① - ⑤ - ③ - ④
( )4. 新考法·图片理解 Which picture shows the pups that began to look different?

( )5. What is the writer’s purpose of writing this passage?
A. To encourage people to keep wolves as pets.
B. To explain how wolves changed into dogs through human selection.
C. To compare the differences between wolves and modern dogs.
D. To criticize the way humans trained wild animals.

答案： 1.B 2.A 3.A 4.A 5.B