2025高考英语真题分类三大从句专题复习练习题(含答案与解析)

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名称 2025高考英语真题分类三大从句专题复习练习题(含答案与解析)
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2025高考英语真题分类三大从句专题复习练习题
1.(2025年全国一卷)An exhibition at the Jiushi Art Museum in Shanghai is featuring artwork inspired by Go, or weiqi in Chinese, ____56____ originated in China more than 4,000 years ago.
2.(2025年全国二卷)I was born and raised in Cleveland, Ohio in the United States. Yet now, I live in the countryside of Zhejiang, China with my Chinese husband and his family, ____36____ bamboo and tea bushes (灌木) grow wild in the mountains, chickens are always free-range, and ____37central____ (center) heating doesn’t exist.
3.(2025年北京卷)When Nick runs ahead, I hear him barking excitedly. I sometimes call him back, worried that he might have someone ____12scared ____ (scare). The truth, though, is ____13____ could be guessed — there’s never anyone else here. Just me, Nick, and the quiet forest.
4.(2025年北京卷) However, according to a report by the World Wildlife Fund, tourists ____18left ____ (leave) over 1.3 billion tons of food waste last year, ____19____ accounted for about 8% of the total global gas release in 2024. To reduce our impact, we can take simple steps: empty the fridge before heading out, and choose sustainable dining options.
5.(2025年1月浙江卷)Tanya is also looking beyond special-occasion dresses to less formal clothing, ____63____ she plans to package as capsule wardrobes and offer to travellers, such as those headed to weddings abroad, with a longer-term rental period. “I really want to make this work for ____64____ (people) lives today, and I know that doesn’t always mean _____65_____ (return) a dress on the Monday after a special weekend,” she says.
模拟试题
1.(2025·福建福州·名校高三下学期5月适应性联考)The true magic of shadow play lies not just in its making, but in its live performance, 62 a team of puppeteers (木偶操纵师), narrators, and musicians work together in harmony.
2.(2025·山东肥城·高考适应性测试)“Covering over 100,000 square meters, it’s now at a stage in 57 its main structure is going through a construction phase, with the main buildings gradually taking shape.
3.(2025·东北三省四市·教研联合体模拟预测) 37 makes Yunjin special is its complicated weaving process, requiring two workers to operate a large wooden loom (织布机) together.
4.(2025·山东德州·三模) The Central Axis dates back to the Yuan Dynasty, while its length was extended in the Ming and Qing dynasties. It is an epitome (缩影)of traditional city design, in 41 the central position is the emphasis, indicating the purpose of constructing social order and standardizing social life through the city layout.
5.(2025·湖北武昌·高三5月质量检测)In the 4: 02-minute video, it showcases various stages of the robotic production line at its Lingang Fengxian factory in Shanghai, 38 features self-made humanoid robots working alongside human workers. Moreover, the company has established 39 it calls a “data collection factory” for real-world data gathering, including training scenarios such as folding clothes, organizing, cleaning and doing the laundry.
6.(2025·重庆·高三5月质量检测)His works blur the line between private and public spaces. What Alejandro Aravena, chair of the Pritzker jury, admires is that Liu “has found a way to build places 58 are a building, landscape and public space at the same time.”
7.(2025·湖南长沙雅礼中学·高三模拟试卷)Here, a city unfolds before your very eyes 61 you listen to the dialogue between culture and wisdom, interpret the cultural thoughts condensed (浓缩) in a historical context, experience ancient feelings with a poetic flavor, and picture the dream in your minds. 63 it be the tile (瓷砖) technology used to represent ancient wisdom in the reading area, or the bamboo sea display in the children’s reading area that captures a sense of happiness and innocence, or the portrayal of natural scenery in the literary area, the design elements aim to create an ideal destination for the soul, marked by the harmonious coexistence of livability and natural ecology.
8.(2025·石家庄·高三质量检测(三))Together, they started a project which later became a website called Phoemica, or Xiangyinyuan, 60 recordings of the dialects in danger of dying out are collected and displayed.
9.(2025·广东省深圳·高三下学期第一次调研)On August 5, 2024, Chinese badminton player He Bingjiao won a silver medal at the Paris Olympics. However, 36 truly stood out was a touching moment on the podium (领奖台).
10.(2025·山东省淄博市高三下学期一模)After learning the real-person video examples 40 demonstrate each sign language word, users can activate the camera, and the app will recognize and assess the accuracy of their sign language gestures.
11.(2025·广东省大湾区普通高中毕业班联合模拟考试(一))This type of layout quickly developed and became widely used in subsequent centuries, establishing itself as the most typical approach to traditional Chinese urban planning, 45 was generally acknowledged as the square-block design of towns.
12.(2025·安徽省合肥市高三第一次教学质量检测)Pioneer 43 China may be in the development of umbrellas, similar devices appeared in other ancient civilizations, such as Egypt, Assyria, and Greece, primarily for sun protection.
13.(2025·安徽省合肥市高三第一次教学质量检测)According to Chinese legend, the first umbrella in ancient China was invented by Lady Yun, the wife of Lu Ban, a renowned craftsman in Chinese history. At the time, people relied on straw hats and capes during rainy days, 38 proved inconvenient for travel.
14.(2025·山东省淄博市高三下学期一模)Whether it’s out of love and interest, a desire to help those with hearing loss, 45 simply for situations where speaking is difficult due to illness, sign language can be very useful.
15.(2025·湖南长沙联考)It is estimated about 60 percent of domestic rice consumption in China is comprised of crops generated from Yuan’ hybrid strain.
16.(2025·山东省聊城市高三一模)Dashuhua is more than a spectacle (精彩表演); it embodies the courage, skill, and perseverance of its performers, 45 fight to keep this cultural treasure alive for future generations.
17.(2025·山东省名校考试联盟高三模拟)The durability of the wooden buildings has stood the test of time, of 63 the Forbidden City is a good example.
18.(2025·陕西省榆林市高三三模)One newly uploaded video showed 40 she turned a woodshed into a woodland cloakroom (衣帽间), and the other showcased her craft using the intangible cultural heritage Chinese lacquerware (漆器) techniques.
19.(2025·黑龙江省哈师大附中、东北师大附中、辽宁省实验中学一模)A long scroll (卷轴) of the “Along the River During the Qingming Festival,” an iconic painting of the Northern Song Dynasty, constructed straight from LEGO bricks, has been on display since Sep 25th. Covering 47 square meters, this LEGO exhibit, has delicately pieced together a marvelous world 57 the old and the new meet.
20.(2025·海南省三亚市高三期末)“The music makes you happy because the melodies are cheerful.” said Tang Baoshan, 39 started learning the folk songs when he was a child and soon demonstrated a talent for the form.
21.(2025·四川省绵阳市高三二模)The culture of bird-keeping and birdcage-making has been deeply rooted in Hong Kong society since the 1920s and 1930s. In the past, many bird owners would bring their birds to the tea houses 41 they socialized with other bird enthusiasts.
22.(2025·江苏省无锡市高三教学质量调研测试)The Donglin Academy of Classical Learning was founded during the Northern Song Dynasty. For a long time, it was a place 36 lectures were given by the famous scholar Yang Shi.
23.(2025·江苏省苏州市高三学业质量阳光指标调研)Through the artwork, the development of Chinese painting between the 4th and 14th centuries can be clearly observed, 65 shows how valuable the Mogao Grottoes are for anyone who wants to study the history of Chinese art.
24.(2025·安徽省合肥市第一中学月考)But truly twisted her heart at that time,she said, was the backward and dangerous practices of local midwives and the hardships faced by expectant mothers and newborns in Jiaxian.
25.(2025·湖北武汉统考) it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate.
答案解析
1.(2025年全国一卷)An exhibition at the Jiushi Art Museum in Shanghai is featuring artwork inspired by Go, or weiqi in Chinese, ____56____ originated in China more than 4,000 years ago.
【答案】which
【解析】考查定语从句。句意:上海久事美术馆正在举办一场展览,展出的艺术品灵感来自围棋(中文称为“围棋”),它起源4000多年前的中国。本空引导非限制性定语从句,修饰先行词为Go, or weiqi in Chinese,指物,且关系词代替先行词在从句中作主语,所以用关系代词which引导。故填which。
2.(2025年全国二卷)I was born and raised in Cleveland, Ohio in the United States. Yet now, I live in the countryside of Zhejiang, China with my Chinese husband and his family, ____36____ bamboo and tea bushes (灌木) grow wild in the mountains, chickens are always free-range, and ____37central____ (center) heating doesn’t exist.
【答案where
【解析】考查定语从句。句意:然而现在,我和我的中国丈夫和他的家人住在中国浙江的农村,在那里山上野生竹子和茶树丛生,鸡总是自由放养的,而且没有集中供暖。本空引导非限制性定语从句,修饰先行词the countryside of Zhejiang,China,关系词代替先行词在从句中作地点状语,应用关系副词where引导。故填where。
3.(2025年北京卷)When Nick runs ahead, I hear him barking excitedly. I sometimes call him back, worried that he might have someone ____12scared ____ (scare). The truth, though, is ____13____ could be guessed — there’s never anyone else here. Just me, Nick, and the quiet forest.
【答案】 what
【解析】考查表语从句引导词。句意:不过,真相正如所料 —— 这里从来没有其他人。“is”后接表语从句,从句中缺少主语,指物,用what引导,what在从句中作主语,意为“…… 的事情”。故填what。
4.(2025年北京卷) However, according to a report by the World Wildlife Fund, tourists ____18left ____ (leave) over 1.3 billion tons of food waste last year, ____19____ accounted for about 8% of the total global gas release in 2024. To reduce our impact, we can take simple steps: empty the fridge before heading out, and choose sustainable dining options.
【答案】which
【解析】考查定语从句关系代词。句意:然而,根据世界野生动物基金会的一份报告,去年游客留下了超过13亿吨的食物垃圾,约占2024年全球气体排放总量的8%。此句为非限制性定语从句,先行词是“1.3 billion tons of food waste”,指物,关系词在从句中作主语,用which引导。故填which。
5.(2025年1月浙江卷)Tanya is also looking beyond special-occasion dresses to less formal clothing, ____63____ she plans to package as capsule wardrobes and offer to travellers, such as those headed to weddings abroad, with a longer-term rental period. “I really want to make this work for ____64____ (people) lives today, and I know that doesn’t always mean _____65_____ (return) a dress on the Monday after a special weekend,” she says.
【答案】which
【解析】考查定语从句。句意:坦尼娅也在关注非正式服装,而不仅仅是特殊场合的礼服,她计划将这些服装打包成胶囊衣橱,提供给旅行者,比如那些前往国外参加婚礼的人,并提供更长期的租赁服务。“____ she plans to package as capsule wardrobes”是非限定性定语从句,修饰先行词less formal clothing,指物,关系词将其代入从句中作宾语,应用关系代词which引导从句。故填which。
模拟试题
1.(2025·福建福州·名校高三下学期5月适应性联考)The true magic of shadow play lies not just in its making, but in its live performance, 62 a team of puppeteers (木偶操纵师), narrators, and musicians work together in harmony.
【答案】 62.where
62.考查定语从句。句意:皮影戏的真正魅力不仅在于其制作过程,更在于其现场表演环节。在这一环节中,一群木偶操纵者、讲述者和乐手们相互协作,共同呈现精彩画面。非限制性定语从句修饰先行词performance,在从句作地点状语,故填where。
2.(2025·山东肥城·高考适应性测试)“Covering over 100,000 square meters, it’s now at a stage in 57 its main structure is going through a construction phase, with the main buildings gradually taking shape.
【答案】 57.which
考查定语从句。句意:占地面积达 10 万平方米,目前该项目正处于主体结构施工阶段,主要建筑正在逐步成型。此处为介词+关系代词结构定语从句,修饰先行词stage,先行词指物,关系词替代先行词作介词的宾语,用关系代词which。故填which。
3.(2025·东北三省四市·教研联合体模拟预测) 37 makes Yunjin special is its complicated weaving process, requiring two workers to operate a large wooden loom (织布机) together.
【答案】37.What
37.考查主语从句。句意:云锦的独特之处在于其复杂的织造工艺,需要两名工人共同操作一台大型木织机。空格处引导主语从句并在从句中作主语,表示“……的事物”,应用连接代词what,位于句首,首字母需大写。故填What。
4.(2025·山东德州·三模) The Central Axis dates back to the Yuan Dynasty, while its length was extended in the Ming and Qing dynasties. It is an epitome (缩影)of traditional city design, in 41 the central position is the emphasis, indicating the purpose of constructing social order and standardizing social life through the city layout.
【答案】 41.which
41.考查定语从句。句意:它是传统城市设计的缩影,在这种设计中,中心位置是重点,表明通过城市布局来构建社会秩序和规范社会生活的目的。此处引导定语从句,先行词为traditional city design,指物,定语从句中缺少介词in的宾语,故应用which,此处in which引导定语从句,故填which。
5.(2025·湖北武昌·高三5月质量检测)In the 4: 02-minute video, it showcases various stages of the robotic production line at its Lingang Fengxian factory in Shanghai, 38 features self-made humanoid robots working alongside human workers. Moreover, the company has established 39 it calls a “data collection factory” for real-world data gathering, including training scenarios such as folding clothes, organizing, cleaning and doing the laundry.
【答案】 38.which 39.what
38.考查定语从句。句意:在这段4分02秒的视频中,它展示了其位于上海临港奉贤工厂的机器人生产线的各个阶段,其特点是自制的人形机器人与人类工人一起工作。“____ features self made humanoid robots working alongside human workers”是非限制性定语从句,修饰先行词the robotic production line,指物,关系词在从句中作主语,用关系代词which引导从句。故填which。
39.考查宾语从句。句意:此外,该公司还建立了一个它称之为“数据收集工厂”的地方,用于收集现实世界的数据。“____ it calls a ‘data collection factory’”是宾语从句,从句中缺少宾语,指事物,用连接代词what引导从句。故填what。
6.(2025·重庆·高三5月质量检测)His works blur the line between private and public spaces. What Alejandro Aravena, chair of the Pritzker jury, admires is that Liu “has found a way to build places 58 are a building, landscape and public space at the same time.”
【答案】 58.that/which
58.考查定语从句。句意:普利兹克奖评审团主席亚历杭德罗·阿瓦内亚称赞刘家琨之处在于,他“找到了一种方法,能够将建筑、景观和公共空间融为一体,打造出兼具这些元素的建筑作品。”引导定语从句,先行词“places”在从句中作主语,可用that或which引导定语从句。故填that/which。
7.(2025·湖南长沙雅礼中学·高三模拟试卷)Here, a city unfolds before your very eyes 61 you listen to the dialogue between culture and wisdom, interpret the cultural thoughts condensed (浓缩) in a historical context, experience ancient feelings with a poetic flavor, and picture the dream in your minds. 63 it be the tile (瓷砖) technology used to represent ancient wisdom in the reading area, or the bamboo sea display in the children’s reading area that captures a sense of happiness and innocence, or the portrayal of natural scenery in the literary area, the design elements aim to create an ideal destination for the soul, marked by the harmonious coexistence of livability and natural ecology.
【答案】 61.where 63.Whether
61.考查定语从句。句意:在这里,一座城市在你眼前展开,在这里你可以聆听文化与智慧之间的对话,解读历史背景下浓缩的文化思想,用诗意的情怀体验古老的情感,并在脑海中勾勒出梦想。本空引导限制性定语从句,先行词是a city,关系词代替先行词在从句中作地点状语,应用关系副词where引导。故填where。
63.考查固定句型。句意:无论是阅读区用来代表古代智慧的瓷砖技术,还是儿童阅读区捕捉幸福和纯真感觉的竹海展示,还是文学区对自然风光的描绘,设计元素都旨在创造一个理想的灵魂目的地,以宜居性和自然生态的和谐共存为标志。表示“无论是……还是……”,应用固定句式whether...or...。位于句首,故填Whether。
8.(2025·石家庄·高三质量检测(三))Together, they started a project which later became a website called Phoemica, or Xiangyinyuan, 60 recordings of the dialects in danger of dying out are collected and displayed.
【答案】 60.where
60.考查定语从句。句意:他们一起启动了一个项目,这个项目后来变成了一个名为“乡音苑”的网站,在这个网站上,收集并展示了那些濒临消失的方言的录音。分析句子结构可知, 5 recordings of the dialects in danger of dying out are collected and displayed是一个非限制性定语从句,修饰先行词a website,关系词在从句中作地点状语,所以用关系副词where引导。故填where。
9.(2025·广东省深圳·高三下学期第一次调研)On August 5, 2024, Chinese badminton player He Bingjiao won a silver medal at the Paris Olympics. However, 36 truly stood out was a touching moment on the podium (领奖台).
【答案】36.what
36.考查主语从句。句意:然而,真正引人注目的是领奖台上的一个感人时刻。分析句子可知,句子为主语从句,空格处单词引导从句,从句中缺少主语,指事物,没有选择范围,故应用“what”引导从句。故填what。
10.(2025·山东省淄博市高三下学期一模)After learning the real-person video examples 40 demonstrate each sign language word, users can activate the camera, and the app will recognize and assess the accuracy of their sign language gestures.
【答案】that/which
【解析】考查定语从句。句意:用户学习完展示每个手语词汇的真人视频示例后,可以激活摄像头,应用将识别并评估用户手语手势的准确性。空处引导限定性定语从句,先行词examples,从句中作主语,指物,故应用关系代词that或which引导。故填that/which。
11.(2025·广东省大湾区普通高中毕业班联合模拟考试(一))This type of layout quickly developed and became widely used in subsequent centuries, establishing itself as the most typical approach to traditional Chinese urban planning, 45 was generally acknowledged as the square-block design of towns.
【答案】which
【解析】考查定语从句。句意:这种布局在随后的几个世纪中迅速发展并得到广泛应用,成为中国传统城市规划最典型的方法,这种方法通常被认为是城镇的方形设计。此处引导非限制性定语从句,先行词是the most typical approach,指物,且关系词在从句中作主语,应用which引导,故填which。
12.(2025·安徽省合肥市高三第一次教学质量检测)Pioneer 43 China may be in the development of umbrellas, similar devices appeared in other ancient civilizations, such as Egypt, Assyria, and Greece, primarily for sun protection.
【答案】as/though
【解析】考查状语从句和倒装。句意:虽然中国可能是伞发展的先驱,但在其他古代文明如埃及、亚述和希腊也出现了类似的设备,主要用于遮阳。此空前为形容词,运用了倒装结构,结合句意可知,此处为as或though引导的让步状语从句,即“adj.+as/though+主语+谓语”。故填as/though。
13.(2025·安徽省合肥市高三第一次教学质量检测)According to Chinese legend, the first umbrella in ancient China was invented by Lady Yun, the wife of Lu Ban, a renowned craftsman in Chinese history. At the time, people relied on straw hats and capes during rainy days, 38 proved inconvenient for travel.
【答案】which
【解析】考查定语从句。句意:当时人们在下雨天依赖草帽和斗篷,这证明了旅行的不便。此处为关系词引导的非限制性定语从句,从句中缺少主语,先行词指的是主句的内容,指事情,所以此处使用关系代词which。故填which。
14.(2025·山东省淄博市高三下学期一模)Whether it’s out of love and interest, a desire to help those with hearing loss, 45 simply for situations where speaking is difficult due to illness, sign language can be very useful.
【答案】or
【解析】考查连词。句意:无论是出于热爱和兴趣,还是出于帮助听力障碍者的愿望,亦或是仅仅因为在生病等情况下说话困难,手语都能发挥极大的作用。whether…or…为固定句型,意为“无论……还是……”。故填or。
15.(2025·湖南长沙联考)It is estimated about 60 percent of domestic rice consumption in China is comprised of crops generated from Yuan’ hybrid strain.
【答案】that
【解析】考查主语从句。句意:据估计,中国国内消费的大米中约有60%是由袁隆平的杂交品种生产的。根据句意及空前“It is estimated”可知,此处为it is estimated that的固定句型结构,其中it为形式主语,空处引导主语从句,从句句意完整,不缺少成分,应用连接词that引导,that在名词性从句中无实义,不充当句子成分。故填that。
16.(2025·山东省聊城市高三一模)Dashuhua is more than a spectacle (精彩表演); it embodies the courage, skill, and perseverance of its performers, 45 fight to keep this cultural treasure alive for future generations.
【答案】who
【解析】考查定语从句。句意:打树花不仅仅是一场精彩表演;它体现了表演者的勇气、技巧和毅力,他们为让这一文化瑰宝为子孙后代传承下去而努力。本空引导非限制性定语从句,先行词是performers,指人,关系词代替先行词在从句中作主语,所以用关系代词who引导。故填who。
17.(2025·山东省名校考试联盟高三模拟)The durability of the wooden buildings has stood the test of time, of 63 the Forbidden City is a good example.
【答案】which
【解析】考查定语从句。句意:木制建筑的耐久性经受住了时间的考验,紫禁城就是一个很好的例子。“of ________ the Forbidden City is a good example”为之前“The durability of the wooden buildings”的非限制性定语从句,先行词在从句中作介词“of”的宾语,用关系代词which。故填which。
18.(2025·陕西省榆林市高三三模)One newly uploaded video showed 40 she turned a woodshed into a woodland cloakroom (衣帽间), and the other showcased her craft using the intangible cultural heritage Chinese lacquerware (漆器) techniques.
【答案】how
【解析】考查宾语从句。句意:一个新上传的视频展示了她是如何将木屋改造成森林衣帽间的,另一个则展示了她运用非物质文化遗产——中国漆器技术的手工艺。此处为连接词引导宾语从句,且从句中不缺主宾等成分,根据句意可知,此处表示“如何”,应用连接副词how。故填how。
19.(2025·黑龙江省哈师大附中、东北师大附中、辽宁省实验中学一模)A long scroll (卷轴) of the “Along the River During the Qingming Festival,” an iconic painting of the Northern Song Dynasty, constructed straight from LEGO bricks, has been on display since Sep 25th. Covering 47 square meters, this LEGO exhibit, has delicately pieced together a marvelous world 57 the old and the new meet.
【答案】where
【解析】考查定语从句。句意:这个乐高展品占地47平方米,精致地拼凑出一个奇妙的世界,在这里新旧交汇。本空引导限制性定语从句,先行词是a marvelous world,关系词代替先行词在从句中作地点状语,应用关系副词where引导。故填where。
20.(2025·海南省三亚市高三期末)“The music makes you happy because the melodies are cheerful.” said Tang Baoshan, 39 started learning the folk songs when he was a child and soon demonstrated a talent for the form.
【答案】who
【解析】考查定语从句。句意:“音乐让人快乐,因为旋律很欢快。”唐宝山说道,他从小就开始学习民歌,并且很快就展现出了在这方面的天赋。空处引导非限制性定语从句,先行词Tang Baoshan,指人,在定语从句中作主语,需用关系代词who引导。故填who。
21.(2025·四川省绵阳市高三二模)The culture of bird-keeping and birdcage-making has been deeply rooted in Hong Kong society since the 1920s and 1930s. In the past, many bird owners would bring their birds to the tea houses 41 they socialized with other bird enthusiasts.
【答案】where
【解析】考查定语从句。句意:过去,许多鸟类主人会把他们的鸟带到茶馆,在那里他们与其他鸟类爱好者交往。该空引导限制性定语从句,先行词是the tea houses,指具体地点,关系词替代先行词在从句中作地点状语,用关系副词where。故填where。
22.(2025·江苏省无锡市高三教学质量调研测试)The Donglin Academy of Classical Learning was founded during the Northern Song Dynasty. For a long time, it was a place 36 lectures were given by the famous scholar Yang Shi.
【答案】where
【解析】考查定语从句。句意:在很长一段时间里,这里是著名学者杨时讲学的地方。设空处引导定语从句,先行词是a place,在从句中作地点状语,所以设空处需用关系副词where引导定语从句。故填where。
23.(2025·江苏省苏州市高三学业质量阳光指标调研)Through the artwork, the development of Chinese painting between the 4th and 14th centuries can be clearly observed, 65 shows how valuable the Mogao Grottoes are for anyone who wants to study the history of Chinese art.
【答案】which
【解析】考查定语从句。句意:通过这些艺术作品,可以清楚地观察到公元4世纪至14世纪中国绘画的发展,这表明了莫高窟对任何想要研究中国艺术史的人来说是多么有价值。空处引导非限制性定语从句,先行词是前面整个句子,关系词在从句中作主语,所以用which引导定语从句,故填which。
24.(2025·安徽省合肥市第一中学月考) But truly twisted her heart at that time,she said, was the backward and dangerous practices of local midwives and the hardships faced by expectant mothers and newborns in Jiaxian.
【答案】what
【解析】考查主语从句。句意:但她说,当时真正让她揪心的是当地助产士落后而危险的做法,以及佳县孕妇和新生儿所面临的困境。这里是一个主语从句,从句中缺少主语,表示“当时真正让她揪心的是”,所以用what。
25.(2025·湖北武汉统考) it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate.
【答案】Whether
【解析】考查主语从句。句意:是否有可能培育出像水稻这样的自花授粉植物的杂交品种,仍是一个备受争议的问题。空处引导主语从句,从句中不缺成分,但根据“ a matter of great debate”可知,是否培育出像水稻这样的自花授粉植物的杂交品种是一个备受争议的问题,所以用whether“是否”引导主语从句。该词位于句首,首字母大写。故填Whether。
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