《2026年山东省中考试卷精选九年级英语》

阅读下面的短文，根据短文内容，从下面方框内所给的 11 个词中选择 10 个意义相符的词，必要时进行词形变化，填入空白处，每空一词。
because, slow, skill, it, up, fast,
through, how, without, what, easy
Scientists have created a soft - bodied robot that's powered by air. The robot doesn't have a computer or a "brain", and yet it can "walk" by 51. itself. And if it is dropped into water, it swims.
52. How is this possible? The secret is in the science of how air moves.
Have you ever noticed a "tube dancer" which is used to attract customers? If you have seen a tube dancer flopping around, you will understand it 53. easily.
Tube dancers are tall, thin tubes of cloth through which air is pumped (用泵抽送). High pressure from the pumped air fills the tube, making it stand 54. up, and then the air flows through faster, making the pressure drop. When this drop in pressure forms a bend in the tube, it causes the tube to fall partway (中途) over. The bend makes the pumped air move more 55. slowly, raising the pressure again. The pumped air pushes the bend up until the dancer is pushed up once more.
Air pressure moving a bend along a tube is exactly what drives the robot. The magic happens 56. because there are several tubes hooked (固定) up to the same pump. When the air starts to flow, the tubes move in different ways. But very quickly, all of these "legs" start to move in exactly the same way, making the robot walk. The robot's speed is controlled by the air pressure.
The researchers built two robots. The first robot had four legs and the air was pumped to it 57. through a hose (软管). Later, the team developed a lighter, two - legged robot that could carry its own battery - powered pump.

There are several remarkable things about the robot. The first is its speed. The robot can cover a distance as long as thirty of its body in a second. That would be like the world's 58. fastest man, Usain Bolt, running the 100 - meter race in 1.71 seconds. The robot can also go over uneven (坑洼的) ground. If it bumps into a wall, it turns 59. without help or control.
Because there is no brain, the new invention is really just a machine. So far, the robot has done all the things on its own. Now, scientists are exploring new ways to control the robot and perhaps will give it more 60. skills in the near future.
As time goes by, we believe such technology will play a positive role in achieving a more energy - efficient and eco - friendly future.

答案： 51.itself [解析]考查反身代词的用法。句意：机器人没有计算机或“大脑”，但它能自行“行走”。by oneself靠某人自己。此处与句子主语it一致。故填itself。
52.How [解析]考查疑问词的用法。句意：这怎么可能呢？how怎么样，用于询问方式或方法，符合语境。注意句首大写。故填How。
53.easily [解析]考查副词的用法。句意：如果你见过“管状舞者”扭动的样子，就会很容易理解。此处修饰动词，应用副词。故填easily。
54.up [解析]考查固定短语。句意：泵入空气产生的高压使管子立起来，随后空气流速加快，导致压力下降。stand up起立，直立，是固定搭配。故填up。
55.slowly [解析]考查副词。句意：弯曲会使泵入的空气流动得更缓慢，从而再次提升压力。此处修饰动词，应用副词；根据常识可知，有弯曲会让空气流动变慢。故填slowly。
slow为形容词，副词为slowly
56.because [解析]考查连词。句意：这种神奇的现象的发生是因为有几根管子连接在同一台泵上。本处引导原因状语从句。故填because。
57.through [解析]考查介词。句意：第一个机器人有四条腿，空气通过一根软管被泵入其中。through通过。故填through。
58.fastest [解析]考查形容词的最高级。句意：那就像世界上跑得最快的人——尤塞恩·博尔特，用1.71秒跑完100米赛跑。本处表达“最快的”，需要最高级。故填fastest。
59.without [解析]考查介词。句意：如果它撞到墙，它会自行转向，无需帮助或控制。without不用，此处表示不需要帮助。故填without。
60.skills [解析]考查名词复数。句意：目前，科学家正在探索控制机器人的新方法，也许在不久的将来会赋予它更多的技能。此处需用名词复数，表示“技能”。故填skills。