一、(2025·威海改编)完形填空
KEY→P10
范畴:人与自然 主题:动物的特征 体裁:说明文 难度:★★★ 建议用时:7分钟 评价:/10
Everything in the natural world works effectively(有效地). Take a look at woodpeckers(啄木鸟), 1 , and you'll understand.

A woodpecker can tap(轻叩) its head against wood 8,000 to 12,000 times a day and with a 2 of up to 20 times each second. Doing something like that all day long must 3 ! Think of how you would feel if you hit your head against something 4 only once.
However, in nature, everything happens for a reason. Woodpeckers have long, sharp beaks(鸟喙) which they use to make 5 in trees to find tasty insects inside. Their special toes allow them to hold on tightly as they bang their heads 6 trees. They also have a strong tail, which they use to keep their balance while they 7 .
But how do woodpeckers avoid brain injuries(伤害)? One of the most 8 things about woodpeckers is their tongue. It is very long—sometimes longer than the bird itself. The woodpecker can wrap(包) its long tongue around its brain inside its 9 . Each time the bird hits a tree with its head, its tongue protects its brain from injury.
That's 10 a woodpecker can tap all day long and doesn't get a headache.
()1. A. without doubt
B. what's more
C. such as
D. for example
()2. A. speed
B. mistake
C. secret
D. talent
()3. A. solve
B. prevent
C. hold
D. hurt
()4. A. thick
B. smooth
C. hard
D. soft
()5. A. ponds
B. heat
C. holes
D. mud
()6. A. from
B. against
C. towards
D. around
()7. A. sleep
B. work
C. fly
D. act
()8. A. harmful
B. dangerous
C. interesting
D. serious
()9. A. head
B. lung
C. kidney
D. heart
()10. A. why
B. when
C. where
D. how

完形填空
文章介绍啄木鸟每天高速啄木却不伤大脑的原理。它们有尖嘴、稳爪、硬尾，长舌能在头部内部包裹保护大脑，体现自然界生物结构的巧妙与合理。
1. D 由前文以啄木鸟举例可知，选 for example。for example 意为“例如”，用来举例，符合句意。
2. A 由后文“每秒20次”可知，选 speed。speed 意为“速度”，符合句意。
3. D 由前文一直撞头可知，选 hurt。hurt 意为“疼；受伤”，符合句意。
4. C 由“撞头”语境可知，选 hard。hard 意为“坚硬的”，符合句意。
5. C 由啄木鸟在树上找虫可知，选 holes。holes 意为“洞”，符合句意。
6. B 由“撞击树木”搭配可知，选 against。against 意为“撞”，符合句意。
7. B 由 they use to keep their balance 可推知，啄木鸟工作(啄树木)时，用尾巴来保持身体平衡。work 意为“工作、干活”，符合句意。
8. C 由舌头保护大脑这个特点可知，选 interesting。interesting 意为“有趣的”，符合句意。
9. A 由前面的 wrap its long tongue around its brain 可知，舌头在头部内部包裹住大脑来保护它。head 意为“头”，符合句意。
10. A 根据前文介绍啄木鸟避免头部受伤的方式可知，此处是指这就是啄木鸟整天啄树也不会头痛的原因，用why 引导表语从句。