2025年中考英语难点语法形式主语句式精讲精练

该初中英语中考复习讲义聚焦形式主语句式这一语法难点，覆盖中考常考的6大核心句型，包括“It + be + 形容词 + (for/of sb.) + to do”等结构，通过“句型梳理-要点解析-分层练习”的教学流程，帮助学生系统掌握考点内在联系，突破for/of辨析等难点。 亮点在于“判断逻辑法”突破for/of辨析难点，如通过“You are kind”与动作逻辑判断使用of，培养学生思维品质。设置基础夯实（单选）、进阶转换（句型转换）、综合运用（语篇+写作）三级练习，配合真题讲解和即时反馈，保障复习效果。助力学生提升语言表达的准确性和多样性，教师可依此把控复习节奏，实现精准高效备考。

中考英语难点语法形式主语句式精讲精练 句型结构 使用要点与关键词 例句 1. It + be + 形容词 + (for/of sb.) + to do for sb.：形容词描述事情的特性（如：important, necessary, easy）。 of sb.：形容词描述人的品性（如：kind, polite, clever, foolish）。 It is important for students to read every day. It is very kind of you to help me. 2. It + be + 名词 + to do/that从句 常见名词：a pity, a shame, a fact, an honor, our duty等。 It is a pity that you can’t come. It is our duty to protect the environment. 3. It + 不及物动词 + that从句 常见动词：seem, appear, happen, matter等。 It seems that he is lying. It happened that she was out when I called. 4. It + be + 过去分词 + that从句 常见过去分词：said, reported, believed, known, suggested等。 It is said that he is studying abroad. It is suggested that we (should) start early. 5. It + takes sb. + 时间 + to do 固定句型，表示“花费某人多长时间做某事”。 It took us half an hour to finish the work. 6. It + be + (no good/use等) + doing 在“no good, no use, a waste of time”等名词后，常用动名词doing作真正主语。 It is no use crying over spilt milk.  如何掌握核心难点 在学习和做题时，你需要特别注意以下几点： 1.“for” 与 “of” 的判断 这是中考最常考查的难点之一。一个简单的判断方法是：试着用人（sb.）做主语，把形容词和后面的动作连成一句。如果句子通顺且逻辑成立，就用 of；否则用 for。 （1）用of：You are kind. (你很善良。) + You help me. → 通顺 → It is kind of you to help me. （2）用for：Students are important. (学生很重要。) + Students read every day. → 逻辑上，学生不会因为每天阅读而“变得重要”，重点是“每天阅读”这件事重要 → It is important for students to read every day. 2.“it” 作形式宾语 形式主语的原理同样适用于宾语。当句子谓语（如find, think, make, feel等）后面的宾语（不定式、动名词或从句）太长，且有宾语补足语时，也常用 it 作形式宾语。 （1）结构：主语 + 谓语 + it + 宾补 + 真正宾语 例句：I find it hard to understand this grammar.（我发现理解这个语法很难。） 例句：We think it necessary that we practice more.（我们认为多练习是必要的。）  学习与应用建议 1.先判断，后造句：看到或想表达一个较长的动作（to do）或一件事（that...）作主语时，先想到可以用“it”开头来平衡句子。 2.区分谓语动词：注意句首是be动词（is/was），还是其他不及物动词（seems, happened），这决定了你该用哪种句型。 3.结合真题练习：在完形填空、单项选择和书面表达中主动识别和运用这些句型。书面表达中恰当地使用一两个形式主语句（如：It is important for us to...），能让你的句子结构更多样，更容易得高分。 中考英语形式主语句式专项练习卷 试卷说明：本练习卷分为基础夯实、进阶转换、综合运用三大部分，难度递进，旨在帮助你系统掌握“It”作形式主语的各类句型。 第一部分：基础夯实 — 单项选择 考查目标：识别与判断形式主语的基本句型。 1. 【考点：It + be + 形容词 + to do】 ( ) ______ is not easy for a primary student ______ a long article in English. A. This; write B. It; to write C. That; writing D. It; write 2. 【考点：It + be + 形容词 + of/for 辨析】 ( ) It's very kind ______ you ______ me with my luggage. A. for; to help B. of; to help C. for; helping D. of; helping 3. 【考点：It + be + 名词 + to do/从句】 ( ) It is a common ______ that the earth goes around the sun. A. sense B. knowledge C. fact D. opinion 4. 【考点：It + 不及物动词 + that从句】 ( ) ______ seems ______ she has changed her mind about the trip. A. It; that B. That; what C. She; to D. It; which 5. 【考点：It + be + 过去分词 + that从句】 ( ) ______ is reported in the newspaper that a new subway line will be built next year. A. What B. It C. That D. This 6. 【考点：It takes + 时间 + to do】 ( ) ______ took the workers two years ______ the great bridge. A. It; build B. They; to build C. It; to build D. That; building 7. 【考点：It + be + (no good/use) + doing】 ( ) It's no use ______ over the problem you can't solve now. A. worry B. to worry C. worrying D. worried 8. 【考点：It 作形式宾语】 ( ) The heavy rain made ______ impossible for us ______ have the picnic outdoors. A. that; to B. it; to C. this; / D. it; / 第二部分：进阶转换 — 句型转换 考查目标：理解形式主语与真实主语之间的转换关系。 A. 将下列句子改为以“It”开头的形式主语句。 1. 【考点：不定式主语后置】 To finish the project on time requires careful planning. → ______ requires careful planning ______ the project on time. 2. 【考点：that从句主语后置】 That he passed the difficult exam surprised everyone. → ______ surprised everyone ______ he passed the difficult exam. B. 将下列“It”形式主语句还原为正常语序。 3. 【考点：还原不定式主语】 It is dangerous to swim in this river. → ______ in this river ______ dangerous. 4. 【考点：还原that从句主语】 It is a shame that you missed the wonderful concert. → ______ you missed the wonderful concert ______ a shame. 第三部分：综合运用 考查目标：在语篇和实际表达中正确运用形式主语句式。 A. 语篇填空 考查考点：综合判断与形式主语相关的动词、介词、连接词等。 It is widely (1)______ (know) that English plays an important role in international communication. Therefore, (2)______ is necessary for us students (3)______ (learn) it well. (4)______ often takes a long time to build up a large vocabulary. However, (5)______ is no use just memorizing words without using them. (6)______ is believed that reading and speaking more will make (7)______ easier to remember and use the words. So, let's find (8)______ interesting to practice every day! B. 书面表达（句子升级） 考查考点：在写作中主动运用形式主语句，提升句子层次。 请使用形式主语句式（“It is... to do/that...”等）优化以下两个简单句，使其表达更地道、结构更丰富。 1. To protect our environment is everyone's duty. → _______________________________________________________________________ 2. We should save water. This is very important. (合并为一句) → _______________________________________________________________________ 参考答案与解析 第一部分：基础夯实 1. B。句型 “It is + adj. + for sb. + to do”。 2. B。“kind”描述人的品质，用 “of sb.”。 3. C。“It is a fact that...”固定句型，意为“……是一个事实”。 4. A。“It seems that...”固定句型，意为“似乎……”。 5. B。“It is reported that...”固定句型，意为“据报道……”。 6. C。“It takes + 时间 + to do”固定句型。 7. C。“It's no use doing...”固定句型，意为“……没有用”。 8. B。“make it + adj. + for sb. + to do”，其中 “it” 作形式宾语。 第二部分：进阶转换 A 1.  It; to finish。原句不定式主语过长，用 “It” 作形式主语将其后置。 2. It; that。原句that从句主语过长，用 “It” 作形式主语将其后置。 B 1. To swim; is。将后置的真实主语不定式 “to swim” 提前。 2. That; is。将后置的真实主语从句 “that you missed...” 提前。 第三部分：综合运用 A. 语篇填空 1. known。“It is widely known that...” 意为“众所周知……”。 2. it。形式主语，指代后面 “to learn it well”。 3. to learn。“It is necessary for sb. to do”。 4. It。形式主语，指代后面 “to build up...”。 5. it。形式主语，用于 “It is no use doing” 句型。 6. It。形式主语，用于 “It is believed that...” 句型。 7. it。形式宾语，指代后面 “to remember and use the words”。 8. it。形式宾语，用于 “find it + adj. + to do” 结构。 B. 书面表达（参考句式） 1. It is everyone's duty to protect our environment. 2. It is very important that we (should) save water. 或 It is very important for us to save water. 学科网（北京）股份有限公司 $