阅读短文，根据首字母或所给词的适当形式填空，使文章语义通顺。

Yan Hongsen is a student from Zhejiang Province. He has been a space lover s    1     he was four. And after he entered primary school, he even gave his classmates a lesson a    2     rockets at an opening ceremony. Because of that, all of his friends called him “rocket boy”.

In 2022, Yan     3     (point) out a rocket was wrongly named in an educational video shown to visitors at a planetarium (天文馆) in Lhasa. The planetarium corrected the mistake at once and thanked him.

In the same year, Yan made his decision     4     (build) his own rocket. It took him ten months to do research. He finally created his f    5     rocket.

That rocket only traveled 200 meters in the air and then began to fall, and didn’t open     6     (it) parachute (降落伞) at the highest point. That day, Yan was     7     (excite) but unsatisfied. He researched the r    8     why he failed. He made changes in his choice of materials. Later, he launched (发射) his second rocket     9     (successful).

According to Yan’s father, Yan is busy with his schoolwork like other kids. His father believes that parents should leave more space for children to achieve their d    10    . Meanwhile, parents should give them enough support.

1.1.

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解析：选since。since。句意：“他从四岁起就一直是航天爱好者”。“has been” 为现在完成时，后接时间点需用连词 “since”（自从…… 以来），符合 “现在完成时 + since + 一般过去时” 的固定语法结构。

2.2.

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解析：选about。about。句意：“给同学们上了一堂关于火箭的课”。介词 “about” 表示 “关于”，搭配 “give a lesson about sth”（上一堂关于某物的课），符合语境逻辑。

3.3.

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解析：选pointed。pointed。句意：“2022 年，严弘森指出……”。时间状语 “in 2022” 为明确过去时间，谓语动词需用一般过去时，“point” 的过去式为 “pointed”（规则变化，直接加 - ed）。

4.4.

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解析：选to build。to build。句意：“严弘森下定决心制造自己的火箭”。固定搭配 “make a decision to do sth”（下定决心做某事），不定式 “to build” 作后置定语修饰 “decision”。

5.5.

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解析：选first。first。句意：“他最终造出了他的第一枚火箭”。结合后文 “his second rocket”（第二枚火箭），可推断此处为 “第一枚”，用形容词 “first”（第一的）修饰名词 “rocket”，符合上下文逻辑。

6.6.

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解析：选its。its。句意：“没有打开它的降落伞”。此处需用形容词性物主代词 “its”（它的）修饰名词 “parachute”，指代前文的 “that rocket”（那枚火箭），避免重复。

7.7.

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解析：选excited。excited。句意：“严弘森既兴奋又不满意”。修饰人用 - ed 形式形容词 “excited”（感到兴奋的），-ing 形式 “exciting”（令人兴奋的）用于修饰事物，此处主语是 “Yan”（人），故用 “excited”。

8.8.

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解析：选reason。reason。句意：“他研究了失败的原因”。结合语境，失败后需分析 “原因”，“reason why + 从句” 为固定搭配，意为 “…… 的原因”，符合 “研究失败根源” 的逻辑。

9.9.

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解析：选successfully。successfully。句意：“他成功发射了第二枚火箭”。此处需用副词修饰动词 “launched”（发射），“successful”（形容词，成功的）的副词形式为 “successfully”（成功地），符合 “副词修饰动词” 的语法规则。

10.10.

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解析：选dreams。dreams。句意：“父母应该给孩子更多空间去实现他们的梦想”。固定搭配 “achieve one’s dreams”（实现某人的梦想），“dream” 为可数名词，结合 “their”（他们的），需用复数形式 “dreams”，表示 “孩子们的多个梦想”。