《2025年一本英语五合一必刷题高中人教版》

When you’re super tired, you may be more likely to take a nap (小睡) than grab a snack. Mosquitoes seem to feel the same way. A new study finds that sleepy mosquitoes are more likely to catch up on missed sleep than to drink blood.
It’s hard to study sleeping mosquitoes—mosquitoes get excited when they sense a meal: the experimenter. That makes it difficult for the insects to nod off. And when mosquitoes do nod off, they look rather similar to those that are just resting to save energy. One way to spot a sleeper is by tracking the insect’s behavior. So Oluwaseun Ajayi and his colleagues watched mosquitoes nap.
The team focused on three species. All these mosquitoes were left alone in a room in small enclosures(围场).There，the team used cameras to spy on them. After about two hours, the mosquitoes appeared to nod off. Their stomachs lowered to the ground. They didn't move for a long time. And as time went on, they showed less response when the experimenter walked in the room. This showed that a tasty smell was less likely to wake those species when they were in a deep sleep.
But what started as a relaxing experiment for the mosquitoes quickly changed. The insects were placed in clear tubes that vibrated(振动) every few minutes. This kept them from falling into a deep sleep. After 4 to 12 hours of this sleep pattern, a brave human volunteer offered up a leg for mosquitoes to feed on for five minutes. The leg exposed to sleepy mosquitoes got far fewer bites than when it was exposed to well - rested ones. In eight tests, an average of 77 percent of the well - rested mosquitoes went for a blood meal. Only 23 percent of mosquitoes that were sleepy did the same.
The findings open avenues for research into controlling mosquitoes. That, in turn, could help keep people safe from mosquito - spread diseases.
8. What does the underlined word “sleeper” in paragraph 2 refer to?
A. An enclosure.
B. A sleeping person.
C. A sleeping mosquito.
D. An ideal place to sleep.
9. Which of the following shows that a mosquito is asleep?
A. Its head is nodding slightly.
B. It stops flying and stays still.
C. Its stomach goes down to the ground.
D. It shows no response to the experimenter.
10. What was the purpose of putting mosquitoes in tubes?
A. To disturb their sleep.
B. To test their sense of smell.
C. To keep them away from food.
D. To put them in different groups.
11. What might the findings of the research be used to do?
A. Cure mosquito - spread diseases.
B. Study different sleep patterns.
C. Treat humans’ sleep disorder.
D. Keep away mosquitoes.

答案： 8. C 词义猜测题。第二段主要讲了为什么研究正在睡觉的蚊子是困难的。分析画线词所在句可知，画线词和该句中的 the insect 都是指本文提到的研究对象——蚊子。由此可推知，画线词 sleeper 指的是正在睡觉的蚊子。
9. C 细节理解题。根据第三段第四、五句“After about two hours, the mosquitoes appeared to nod off. Their stomachs lowered to the ground.”可知，蚊子睡着后，其腹部会靠近地面。
10. A 细节理解题。根据第四段第二、三句“The insects were placed in clear tubes that vibrated every few minutes. This kept them from falling into a deep sleep.”可知，把蚊子放进振动的管子里是为了使它们无法好好睡觉。
11. D 推理判断题。根据最后一段第一句“The findings open avenues for research into controlling mosquitoes.”可知，这些发现为控制蚊子的研究开辟了道路。由此可推知，这项研究的发现可能会被用于驱蚊。