《2025年一本英语完形填空与阅读理解150篇八年级》

 D 阅读理解
Rats trained to fight against crimes
When it comes to animals that help solve crimes by smelling things, which animal comes to your mind? Most people probably think of police dogs. However, research by an organization called APOPO has found that rats could be the next crime-fighting heroes on four legs.

APOPO has already trained African giant pouched rats to do some amazing things. They can find hidden bombs(炸弹) in the ground and tell if someone has a certain illness. They can even make sure where people are buried by earthquakes. Now, these rats are being taught to fight against illegal wildlife trafficking(非法贩运野生动物).
It's hard for people to find these hidden things. However, African giant pouched rats are really good at it with their powerful noses. They are good learners and they can get into small spaces where people can't reach. Besides, it doesn't cost much to train them.
In a lab, scientists trained eleven African giant pouched rats. When they were able to tell the target scents(目标气味), the rats were introduced to a mix of target and non-target scents. The non-target scents included things used by traffickers to cover the smell of illegal goods. By the end of the training, eight rats were able to tell four target scents and 146 non-target scents. APOPO later tested these rats at a port in Tanzania. The rats found more than 83% of the hidden things.
APOPO is now getting ready to send these “HeroRATS” out to find real crimes.
①How does the writer begin the passage?
A. By telling a story.
B. By making a suggestion.
C. By asking a question.
D. By showing a saying.
②Which of the following can the rats trained by APOPO do?
①Find hidden bombs.
②Treat humans' illnesses.
③Search for lost animals.
④Find people buried by earthquakes.
A. ①② B. ①④ C. ②③ D. ③④
③What does Paragraph 3 mainly talk about?
A. The difficulties of training the rats.
B. The history of the rats in crime-solving.
C. The number of those hidden things the rats found.
D. The reason of choosing the rats to help solve crimes.
④What does the underlined word “they” refer to?
A. The rats. B. The Africans.
C. The scientists. D. The traffickers.
⑤What is APOPO's next step after the test in Tanzania?
A. Training more rats.
B. Raising money for its lab.
C. Sending the rats to find real crimes.
D. Using the rats to take the place of police dogs.

答案： ①C ②B ③D ④A ⑤C