形式代词it的多种用法-备战2025-2026学年九年级英语上学期期末语法全解（沪教牛津版）

ENGLISH-初三上系列资料（沪教牛津版） Chapter1形式代词it的多种用法 考频分析 形式代词t是中考英语语法的重要模块，考频占语法总量的15%左右，涉及试卷多个核心题型：单项选 择(1-2题)、完形填空(2-3题)、语法填空(1-2题)、阅读理解（辅助理解长难句，间接影响答题效率）。 在语境运用类题目中，t作形式主语、形式宾语及指代上文内容的用法往往是解题关键。 考查内容 中考对形式代词t的考察聚焦三大维度，覆盖基础用法与语境应用： ·指代功能：指代前文提到的单数名词、不可数名词或整个句子； ·形式主语/宾语：代替不定式、动名词或从句作形式主语（如tis+adj.+to do sth.)或形式宾语（如find it adj.to do sth.); ·特殊句型搭配：用于强调句型(It is/was+被强调部分+that/who..)、时间/距离天气等无人称主语（如 It rains heavily.)及固定表达（如lt's time to do sth.)。 精讲精练 知识点一：形式代词t的多种用法 ·指代上文提到的单数名词（避免重复） -例句：口This is a book.It is interesting.(it指代上文的a book)☐My cat is cute.I like it very much. (it指代上文的my cat) ·指代不明性别的婴儿或动物 -例句：☐The baby is crying.It might be hungry.(it指代婴儿)Look at the small dog.It is running after a ball.(it指代小狗) ·作形式主语（代替真正主语不定式从句，使句子平衡） -常见结构：t+be+形容词/名词+(for sb..)to do sth./that从句 -例句：口It is easy to learn English.(真正主语是to learn English)口It is a pity that he can't come. (真正主语是that he can't come) ·作形式宾语（代替真正宾语不定式从句，放在动词后） -常见动词：find/think/make/feel+it+形容词+to do sth./that从句 -例句：☐I find it interesting to read stories..(it代替to read stories作形式宾语)He thinks it important that we should study hard.(it代替that从句作形式宾语) 【即学即练】 1.【it指代用法】一hat's this?--It's a pen.句中的it指代什么？ A.前文的apen B.不明性别的事物 C.天气 D.时间 2.【形式主语结构】请补全句子：It is important_(study)hard, 3.【形式宾语结构】I find_difficult to finish the work on time. A.this B.that C.it D.one 4.【it指代婴】The baby is sleeping.Lis very lovely. A.He B.She C.It D.They 5.【形式主语从句】It is a pity_he can't join us.此处应填什么引导词？ A.which B.that C.what D.who 初三上丨英语|沪教牛津版 ENGLISH-初三上系列资料（沪教牛津版） 知识点二：形式代词t的多种用法 ·指代上文提到的单数名词（避免重复） -用法说明：代替前文出现过的可数名词单数或不可数名词，尤其指代事物或动物 一例句： *☐This is a new book.It is very interesting.(it指代前文的a new book) *☐The weather is cold today.It makes me wear a coat.(it指代不可数名词the weather) ·指代时间、距离、天气、温度等抽象概念 一常用场景：表示时间、距离、自然现象（天气、温度）时，t无实际意义，仅作形式主语 一例句： *☐Itis8o'clock in the morning.(it指代时间) *☐It is about5 kilometers from my home to school.(it指代距离) *☐It is raining heavily outside.(it指代天气) *口Itis25☐in the room.(it指代温度) ·作形式主语（真正主语为不定式从句） -结构1：t+be动词+形容词+(for sb.)+to do sth.(不定式作真正主语) -例句： *☐It is easy for me to solve this problem.(真正主语：to solve this problem) *口It is important for students to learn English well..(真正主语：to learn English well) -结构2：t+be动词+名词+that从句（从句作真正主语） 一例句： *☐It is a fact that the earth is round.(真正主语：that the earth is round) *口It is a pity that he didn't come to the party.(真正主语：that he didn't come to the party) ·作形式宾语（真正宾语为不定式从句） -结构：主语+动词(think/find/feel/make等)+it+形容词/名词+to do sth./hat从句 一例句： *口I find it difficult to learn math.(it作形式宾语，真正宾语：to learn math) *☐She thinks it a good idea that we go hiking tomorrow.(it作形式宾语，真正宾语：that we go hiking tomorrow) ·用于强调句（强调除谓语外的句子成分） -结构：It is/was+被强调部分（主语/宾语/状语）+that/who+其他部分（强调人可用who,其他用tht) -例句： *口It was Tom who helped me yesterday..(强调主语Tom) *☐It is in the park that we will have a picnic.(强调地点状语in the park) *口It was last week that I bought this pen.(强调时间状语last week) ·用于固定句型 -口It takes sb.+时间+to do sth.(花费某人时间做某事) -例句：It takes me30 minutes to walk to school, -口It is one's turn to do sth.(轮到某人做某事) -例句：It is your turn to answer the question. 一口tis+时间段+since从句（自从…以来多久了） -例句：ltis3 years since I left my hometown. 知识点三：形式代词t的多种用法 ·指代前文提到的单数名词或不可数名词（中考基础） 一基础用法拓展（中考必背）： *O指代事物→例句：This is a book.It is very interesting, *口指代动物（不详性别时）→例句：Look at the cat..It is sleeping on the sofa. *口指代前文提到的整件事→例句：He helped me with my English.It made me very happy. *口指代时间→例句：What time is it?ltis9o'clock in the morning, *口指代天气→例句：It is sunny today.Let's go for a walk. *O指代距离→例句：It is two kilometers from my home to school.. ·作形式主语（中考核心）》 一固定句型搭配（中考必背）： *口t+be动词+adj.+(for sb.)to do sth.(对某人来说做某事是…的)→例句：It is easy for me to solve this problem. *口t+be动词+adj.+ofsb.to do sth.(某人做某事是的，强调人品质)→例句：It is kind of you to help me. *口t+takes sb.+time+to do sth.(做某事花费某人多长时间)→例句：It takes me half an hour to get to school. *口lt+be动词+n.+to do sth.(做某事是…)→例句：It is a good idea to plant more trees. ·作形式宾语（中考易错） 一常见动词搭配（中考常老）： *☐find it+adj.+to do sth.(发现做某事是…的)→例句：She finds it difficult to learn math well.. *口think it+adj.+to do sth..(认为做某事是…的)→例句：I think it important to read English every day. *口make it+ad.+to do sth.(使做某事成为…的)→例句：Ne make it a rule to clean the classroom every day. *口feel it+adj.+to do sth.(感觉做某事是…的)→例句：He feels it happy to play with his friends. 初三上丨英语|沪教牛津版 ENGLISH-初三上系列资料（沪教牛津版） 老法一：形式主语t的用法辨析 ·核心：根据句子结构和语境，识别t作为形式主语代替真正主语（不定式从句）的用法，判断句子是否 符合"It+be+形容词名词+(for sb.)to do sth.that从句”结构 ·真题1（语法填空）： It is important for us_(learn)English well. -答案：to learn解析：由结构”tis+形容词+for sb.+to do sth.”可知，此处应用不定式作真正主语， 故填to learn。 ·真题2（单项选择）： -_is a pity that you can't come to the party. A.This B.That C.It D.What -答案：C解析：此处需要形式主语代替真正主语that从句，应用it,构成”It is a pity that..”结构，其 他选项无此用法。 考法二：形式代词t的用法辨析 ·核心：根据语境判断t的具体用法（指代前文名词、抽象概念、形式主语宾语、强调句等），选择或填 入正确形式 ·真题1（语法填空）： It_(take)me two hours to finish my homework yesterday. -答案：took解析：由固定句型"t takes sb.+时间+to do sth.”及时间标志词"yesterday”可知，此处 用一般过去时，take的过去式为took。 ·真题2（完形填空）： -_is important for us_English every day. A.It;to learn B.That;learning C.This;learn D.It;learn -答案：A解析：此处it作形式主语，真正主语为不定式短语"to learn English every day”,符合"t+be +形容词+for sb.+to do sth.”结构。 考法三：形式代词t的综合用法辨析 ·核心：结合语境判断t的指代功能（事物/抽象概念）入、形式主语宾语结构及固定句型的灵活运用 ·真题1（单项选择）： -_is important for us_English every day.And my teacher always finds_interesting to learn with stories. A.It;to study;it B.That;studying;that C.This;study;this D.There;studies;there -答案：A解析：第一空为形式主语，代替不定式to study English every day,用it;第二空为固定结构 tis+adj.+for sb.+to do sth.;第三空为形式宾语，代替真正宾语to learn with stories,用it。 ·真题2（语法填空）： -It _(take)me 20 minutes to walk to school every morning.My mom thinks_necessary for me(do) some exercise after class. -答案：takes;it;todo解析：第一空为固定句型It takes sb.+时间+to do sth.,由"every morning” 可知用一般现在时，主语it为第三人称单数，谓语动词用takes;第二空为形式宾语，代替不定式to do some exercise,用it;第三空为固定结构think it+adj.+for sb.+to do sth.,需填to doo 初三上丨英语|沪教牛津版 ENGLISH-初三上系列资料（沪教牛津版） 解题小妙招 形式主语看结构，tbe形名接to do/that; 形式宾语要记牢，动词后接t加宾补； 指代事物或概念，上下文里找线索； 固定句型需活用，It takes sb time to do sth; 主谓一致要注意，t作主语谓动三单现； 单选语法辨清楚，it搭配todo是关键。 真题演练 演练一：单项选择（共10题） 1.__is necessary for students to finish homework on time. A.This B.That C.It D.What 2.My dog is very cute.I likevery much. A.them B.it C.her D.him 3._was yesterday that I met my old friend in the park A.It B.This C.That D.What 4.It often _me 10 minutes to walk to the bus stop A.take B.takes C.took D.taking 5.The weather is cold today.-makes me wear a heavy coat. A.This B.That C.It D.They 6.I find_interesting to learn English through movies. A.this B.that C.it D.one 7.is kind_you to help me with my math. A.It:of B.That;for C.This;of D.It;for 8.It is 5 years_I moved to this city. A.when B.since C.before D.after 9._is your turn to clean the classroom today. A.This B.That C.It D.One 10.It was in the library__I found my lost book. A.where B.that C.which D.when 演练二：填空试题（共10题） 1.It is important for us_(read)books every day. 2.My cat is sleeping.(it)is very lazy. 3.It_(rain)heavily outside now. 4.She thinks_difficult to finish the work alone. 5.It takes me 2 hours_(do)my homework every evening. 6._is a pity that you missed the concert. 7.It is 3 kilometers from my home to the school.-(it)is not very far. 8.He found__interesting to play basketball with his friends. 9.It _(be)Tom who gave me this pen last week. 10.It is your turn_(answer)the question. 演练三：语法填空（共10空） It was Sunday morning.Tom wanted to visit his grandparents.He knew_(1)was 10 kilometers from his home to their village.His mother said,"(2)will take you about an hour to ride there."Tom started at 8 o'clock.On the way,he saw a small dog.-(3)looked hungry,so he gave it some bread.When he arrived,his grandparents were very happy.His grandma said,"(4)is kind of you to come early."They had lunch together.In the afternoon,Tom helped his grandpa water the flowers.He found__(5)relaxing to work in the garden.At 4 o'clock,Tom left.His grandpa said,"(6)was great to see you today. Come again soon!"Tom rode back home.He felt tired but happy.He thought_(7)was a wonderful day. Now,Tom often says,4(8)is important to spend time with family.And_(9)takes only a little time to show love to them."Indeed,(10)is true that family is the most important thing in life. 答案 演练一：单项选择 1.C2.B3.A4.B5.C6.C7.A8.B9.C10.B 演练二：填空试题 1.to read 2.It 3.is raining 4.it 5.to do 6.It 7.It 8.it 9.was 10.to answer 演练三：语法填空 1.it 2.It 3.It 4.It 5.it 6.It 7.it 8.It 9.it 10.it 初三上丨英语|沪教牛津版