Ⅳ.语法填空
Many videos have been shared, showing that parts of the Takla Makan Desert
were flooded. Is 25. rain making the environment in northwestern China
better? Actually, the answer is no.
In 2021, it was reported 26. an oil field in the Takla Makan Desert was
flooded. From that year on, every summer has seen flooding in Takla Makan, leading
some people 27. (joke) that the camels there had better learn swimming
before it's too late.
The jokes are 28. (interest). However, the idea that climate change is
good for the area isn't correct. Yes, because of the rain, parts of the desert have
turned wet 29. that's not sustainable(可持续的). Researchers say that most
water comes from melting(融化) glaciers in the Tianshan Mountain. Once all the
glaciers melt, all the 30. (river) will dry up. For example, the 31.
(large) glacier in the Tianshan Mountain has melted so much that it turned into two
in 1993. As a result, the population of Ili Pika(鼠兔), an animal that lived there, can
hardly 32. (see) now. The flooding also 33. (happen) because of
increased rainfall. However, the rainwater can hardly improve the local environment
because the sands can hardly keep the water.
Climate change is a big challenge for mankind. 34. we need to do is to
join hands to protect the environment.

25. the 26. that 27. to joke 28. interesting 29. but
30. rivers 31. largest 32. be seen 33. happens 34. What

【分析】
这是一篇科普主题的语篇型语法填空，解题时首先通读全文，理清文章核心逻辑：文章通过塔克拉玛干沙漠近年夏季频发洪水的现象，纠正“降雨增多会让西北环境变好”的错误认知，说明冰川融化带来的水量增长不可持续，呼吁大家携手保护环境。接下来逐个空结合上下文逻辑、固定搭配、句法规则、词性变换推导答案，最后代入全文通读验证语法和逻辑是否通顺：
1. 遇到特指的名词优先考虑定冠词；
2. 遇到常见的固定句型直接套用对应引导词；
3. 遇到动词提示词先判断是作非谓语还是谓语，作谓语要考虑时态语态主谓一致，作非谓语要判断固定搭配的形式；
4. 遇到名词提示词注意单复数变化；
5. 遇到无提示词的空优先判断是冠词、连词还是从句引导词。
【解析】
25. 此处特指前文提到的导致塔克拉玛干沙漠部分区域被淹的降雨，表特指需用定冠词the。
26. 考查固定句型It was reported that...，意为“据报道……”，it作形式主语，that引导真正的主语从句，无实际语义，填that。
27. 考查固定搭配lead sb. to do sth.，意为“导致某人做某事”，此处用不定式作宾语补足语，填to joke。
28. 此处作表语修饰事物The jokes，表达“有趣的”含义，要用-ing结尾的形容词interesting。
29. 前半句“部分沙漠因降雨变得湿润”，后半句“这种情况是不可持续的”，前后为转折逻辑，填并列连词but。
30. 空前有限定词all，后接可数名词时需用复数形式，river的复数形式为rivers。
31. 空后给出范围in the Tianshan Mountain，且空前有定冠词the，需用形容词最高级，large的最高级为largest。
32. 主语伊犁鼠兔和动词see是被动关系，表达“几乎不能被看见”的含义，情态动词can后接动词原形，因此填be seen。
33. 此处陈述客观事实，用一般现在时，主语The flooding是单数概念，谓语动词用第三人称单数形式happens。
34. 此处引导主语从句，从句中动词do后缺少宾语，指代“我们需要做的事”，用连接代词What，句首首字母大写。
【答案】
25. the 26. that 27. to joke 28. interesting 29. but
30. rivers 31. largest 32. be seen 33. happens 34. What
【知识点】
定冠词用法，非谓语动词，名词性从句，词性转换
【点评】
本题围绕生态保护的科普话题命题，考点覆盖了高中英语语法填空的所有高频考点，既考查学生对基础语法规则、固定搭配的识记能力，也要求学生结合上下文逻辑推导答案，同时渗透了环保理念，整体考点分布均衡，区分度合理。
【难度系数】
0.6