Unit 6 Sunshine for all 语法Grammar It's +adj+to do的用法-2024-2025学年八年级英语下册单元语法精讲精练（牛津译林版）

班级 姓名 学号 分数 Unit 6 Sunshine for all It’s +adj+of或for+sb+to do的用法 （时间：60分钟，满分：100分） ★句型一：It is + adjective + to do something. We use “It is+adj.+to-infinitive” to express what we think about something.含义：“做某事是……的”。 如： It’s important to plant more trees. It’s necessary to keep parks clean. 注意：该句型中的形容词表示不定式所具备的特征或客观情况。常用的形容词有：cheap, convenient, dangerous, difficult, easy, exciting, expensive, important, interesting, necessary, normal, possible, useful, wonderful等等。 ★句型二：It is + adjective + for sb. + to do sth. We use “It is+adj.+for…+to-infinitive” to specify who we are talking about.含义：“对某人来说做某事是……的” It’s important for people to learn good manners. It’s dangerous for children to play on the street. 注意：该句型中的形容词也是表示不定式所具备的特征或客观情况，和句型一相同。 ★句型三：It is + adjective + of sb. + to do sth. We use “It is+adj.+of…+to-infinitive” to express what we think of someone’s actions.含义：“某人做某事真是/太……了”。如： It is very nice of you to offer me a seat. It is careless of him to lose so many things. 注意：该句型中的形容词描述的是人的特征、品质。常用的形容词有：brave, careless, clever, foolish, generous, good, helpful, honest, kind, nice, polite, silly, stupid, wrong等等。 一、单项选择(本大题共30小题，每小题2分，共60分) 1．Sophia is good at English. I think it’s easy ________ her ________ English well. A．for; to learn B．of; to learn C．for; learning D．of; learning 【答案】A 【详解】句意：索菲亚擅长英语。我认为对她来说学好英语很容易。 考查固定句型。“It’s+形容词+for sb. to do sth.”是固定句型，意为“对某人来说做某事是……的” ，其中it作形式主语，真正的主语是后面的动词不定式短语。这里表示对她来说学好英语容易。故选A。 2．It is________ of you to________ money to the local charity. A．important; donating B．generous; raising C．meaningful; raise D．helpful; donate 【答案】D 【详解】句意：你向当地慈善机构捐款是非常有帮助的。 考查形容词辨析和to do不定式作主语。important重要的；generous慷慨的；meaningful有意义的；helpful有帮助的。根据第一空后of可知，此处用表示人品质的形容词，排除AC两项；It is + adj. + of sb. to do sth.意为“某人做某事是怎样的”，it作形式主语，真正的主语是动词不定式。故选D。 3．—Let me help you carry the box, Ms Wang. —Thank you, Li Ping. It’s very nice ________ you ________ me. A．of; to help B．for; to help C．of; helping D．for; helping 【答案】A 【详解】句意：——让我帮你搬这个箱子吧，王女士。——谢谢你，李平。你帮助我真是太好了。 考查it固定句型。“It’s + adj. + of/for sb. to do sth.”的用法。在该句型中，若形容词描述的是人的品质、性格等，如kind、nice、clever等，要用介词of；若形容词描述的是事物的性质、特点，如important、difficult、necessary等，要用介词for。本题中“nice”用于描述“you”的品质，所以要用介词of。同时，该句型中真正的主语是后面的动词不定式短语，所以第二个空应填to help。故选A。 4．________ is better to be safe than sorry. A．What B．This C．That D．It 【答案】D 【详解】句意：宁可事先谨慎有余，莫要事后追悔莫及。 考查形式主语。What什么；This这个；That那个；It它。根据“...is better to be safe than sorry.”可知，空处需It为形式主语，真正的主语为动词不定式。故选D。 5．—All of us think ________ dangerous for children to play with fire. —I agree. It’s important ________ to be safe all the time. A．it is; of them B．it; for them C．that is; of them D．that; for them 【答案】B 【详解】句意：——我们所有人都认为孩子玩火是危险的。——我同意。对他们来说始终保持安全是很重要的。 考查it作形式宾语和“it’s adj for sb to do”句型。第一空为“think it adj for sb to do”句型，it作形式宾语；第二空为“it’s important for sb to do”句型，意为“对某人来说做某事是重要的”，故选B。 6．Is ________ possible to fly to the Moon in a spaceship? A．this B．that C．it D．/ 【答案】C 【详解】句意：坐宇宙飞船飞往月球有可能吗？ 考查代词。this这，这个；that那，那个；it它；/不填。根据“Is ... possible to fly to the Moon in a spaceship?”可知，固定句型：It is+adj.+to do sth.，it是形式主语，真正的主语是“to fly to the moon in a spaceship”。故选C。 7．—What do you think of tomorrow’s basketball match? —I think________ difficult for us________ the match. A．we’ll be; winning B．it’ll be; winning C．we’ll be; to win D．it’ll be; to win 【答案】D 【详解】句意：——你认为明天的足球赛会怎么样？——我认为对我们来说，要赢得比赛是很难的。 考查it形式主语。这里I think后面是宾语从句，it’s+ 形容词+for sb to do sth“对于某人来说做某事是……”，it作形式主语，不定式是真正主语。故选D。 8．It is wrong ________ us ________ look down upon (看不起) the disabled people. A．of; to B．for; for C．to; to D．of; for 【答案】A 【详解】句意：我们看不起残疾人是不对的。 考查it固定句型。It is+形容词+of sb+to do sth，it是形式主语，真正的主语是后面的动词不定式to look。故选A。 9．It’s necessary ________ us to keep the classroom ________ every day. A．for; clean B．of; clean C．for; cleaning D．of; cleaning 【答案】A 【详解】句意：对我们来说，每天保持教室干净是有必要的。 考查介词辨析和动词形式。for对于；of……的，常用来表示所属关系等；clean干净的，是形容词；cleaning清洁、打扫，动名词或现在分词形式。根据“It’s necessary...us to keep the classroom...every day.”可知，句中“It's+形容词+for sb.+to do sth.”是一个固定句型，意为“对某人来说做某事是……的”，这里用“for”来引出不定式动作的逻辑主语，所以第一空用“for”；“keep+宾语+形容词”表示“使……保持某种状态”，“clean”在这里作宾语补足语，用来补充说明“the classroom”的状态，所以第二空用“clean”。故选A。 10．It’s very nice ________ you to give me such a chance. A．to B．for C．of D．at 【答案】C 【详解】句意：你给我这样一个机会，真是太好了。 考查介词在固定句型中的用法。to到；for对于、为了；of……的；at在。根据“It’s very nice...you to give me such a chance.”可知，句中“It’s+adj.+of sb. to do sth.”是一个固定句型，当形容词是用来描述人的性格、品质等特征时，使用“of”。本句中“nice”是描述“you”的品质，所以用“of”。故选C。 11．________ is really exciting ________ them to take part in such ________ event. A．It; for; an B．It; to; an C．This; for; a D．This; to; a 【答案】A 【详解】句意：他们参加这样的活动确实令人兴奋。 考查it固定句型。分析句子可知，该句句型为“it is adj for sb to do sth”意为“做某事对某人来说是……的”；且event以元音音素开头，其前应用冠词an。故选A。 12．It’s really ________ him to save the boy out of the fire. A．wise of B．wise for C．brave for D．brave of 【答案】D 【详解】句意：他把男孩从火中救出来真的很勇敢。 考查固定句型和形容词辨析。“It’s+形容词+of/for sb. to do sth.”是固定句型，当形容词描述人的性格、品质时用of，当形容词描述事情的性质时用for。wise和brave都是描述人的品质的形容词，这里说从火中救人，体现的是他勇敢的品质，应该用brave of。故选D。 13．We think it is difficult ________ them ________ the charity walk without team spirit (精神). A．for; to finish B．of; to finish C．for; finishing D．of; finishing 【答案】A 【详解】句意：我们认为他们不发扬团队精神，很难完成这次慈善步行。 考查it固定句型。for为了；of……的；to finish完成，动词不定式；finishing完成，现在分词。分析句子可知该句句型为“it is adj for sb to do”意为“做某事对某人来说是……的”。故选A。 14．It is impossible ________ me ________ all the new words in such a short time. A．of; to remember B．of; remember C．for; remember D．for; to remember 【答案】D 【详解】句意：我不可能在这么短的时间内记住所有的新单词。 考查it的固定句式。分析句子结构并结合选项可知，此处为固定句式“it is+adj. for/of sb. to do sth.”，当形容词描述事物的性质，介词用for，若形容词描述人的特性，介词用of；impossible“不可能的”，描述事物的性质，介词用for。故选D。 15．I think it is ________ for me to do so much housework while my brother does nothing. A．necessary B．useful C．unfair D．usual 【答案】C 【详解】句意：我认为我做这么多家务，而我弟弟什么都不做，这对我来说是不公平的。 考查形容词辨析。necessary必要的；useful有用的；unfair不公平的；usual寻常的。根据“I think it is ... for me to do so much housework while my brother does nothing.”可知，自己做很多家务，而弟弟什么都不做是不公平的。故选C。 16．It’s very kind ________ you ________ me with my English. A．for, to help B．of, helping C．of, to help D．for, helping 【答案】C 【详解】句意：谢谢你帮我学英语。 考查介词及不定式。it’s+adj+of sb to do sth“某人做某事是……的”，固定搭配。故选C。 17．It’s really nice ________ you to help her answer them. A．for B．of C．to 【答案】B 【详解】句意：你帮助她回答这些问题真是太好了。 考查介词辨析。for为了；of属于……的；to向。固定句型：“It’s + adj. + of/for sb. + to do sth.”，当形容词描述人的品质（如nice/kind/clever等）时，用of；当形容词描述事物性质（如important/necessary等）时，用for。本题中nice修饰人的品质，故选B。 18．It’s time for us ________ hiking. Let’s ________ to the forest. A．to go; go B．to go; to go C．go; go D．going; go 【答案】A 【详解】句意：是我们去远足的时候了。咱们去森林吧。 考查it固定句型与词组搭配。“It’s time for sb. to do sth.”是固定句型，意为“是某人做某事的时候了”，所以第一空用to go；“Let’s + 动词原形”是固定用法，表示“咱们做某事吧” ，所以第二空用go。故选A。 19．It was careless ________ Mary ________ her camera in the zoo. A．for; lose B．of; lose C．for; to lose D．of; to lose 【答案】D 【详解】句意：玛丽在动物园丢了相机真是太粗心了。 考查It固定句型。此句为“It is+adj.+of/for sb.+to do sth.”结构，当形容词描述人的性格或品质时，用of；描述事物性质时用for。此处“careless”指人的粗心，故用of；第二个空用不定式“to lose”作真正的主语。故选D。 20．It is important for us ________ for a while after heavy work. A．to rest B．resting C．rest D．rests 【答案】A 【详解】句意：繁重的工作之后，休息一会儿对我们来说是很重要的。 考查非谓语动词。此处是It的固定句型，使用动词不定式作真正的主语，故选A。 21．It’s important ________ a foreign language. A．of us to learn B．for us to learn C．of us learning D．for us learning 【答案】B 【详解】句意：对我们来说，学习一门外语是很重要的。 考查it固定句型。it’s adj for sb to do sth“对某人来说做某事是……的”，固定句型。故选B。 22．It’s generous ________ him to donate money to the poor. It’s really meaningful ________ us students to learn from him. A．of; of B．for; for C．for; of D．of; for 【答案】D 【详解】句意：他捐款给穷人真是慷慨。对我们学生来说，向他学习真的很有意义。 考查介词辨析。of……的；for为了。在“It’s+形容词+of/for+sb.+to do sth.”结构中，若形容词是描述某人的品质或性格，用介词of；若形容词描述某事物对某人的影响或意义，用介词for。第一空描述“他”的品质，用of；第二空描述“学习”对“我们学生”的意义，用for。故选D。 23．It is cruel ________ those hunters ________ elephants just for their ivory. A．of, to kill B．for, killing C．for, to kill D．of, killing 【答案】A 【详解】句意：那些猎人为了象牙而杀害大象是残忍的。 考查it固定句型。结合“cruel”可知，此处是it is+形容词+of+sb+to do sth结构，是用于强调某人性格或品性的。故选A。 24．It’s very nice ________ you to say so. A．of B．for C．with D．to 【答案】A 【详解】句意：你这么说真是太好了。 考查介词辨析。of……的；for为了；with和；to到。该句考查“It’s+形容词+of/for sb+to do sth”，当形容词描述人的品质或性格时用of，nice是形容人的品质的，因此介词用of。故选A。 25．It’s ________ for volunteers to receive training before doing the tasks. A．special B．necessary C．possible D．comfortable 【答案】B 【详解】句意：志愿者做任务前接受训练是必要的。 考查形容词词义辨析。special特殊的；necessary必要的；possible可能的；comfortable舒适的。根据“for volunteers to receive training before doing the tasks”可知，志愿者做任务前接受训练是必要的，故选B。 26．It’s nice ________ you ________ me with my English. A．for; to help B．of; helping C．of; to help 【答案】C 【详解】句意：你帮助我学英语真是太好了。 考查It固定句型。for对……来说；of……的。此处是It’s+adj+for/of sb to do sth句型，此处“nice”是修饰人的品质，用介词of。故选C。 27．—It’s important ________ us to do exercises every day. —Yes, it can keep us healthy. A．about B．with C．for D．of 【答案】C 【详解】句意：—— 每天锻炼对我们来说很重要。—— 是的，它能让我们保持健康。 考查介词辨析。about关于；with和……一起；for为……；of……的。此处是it is+形容词+for sb.+to do句型，意为“对某人来说做某事是……的”。故选C。 28．It’s important ________ us ________ English well. A．of; learning B．or; learning C．of; to learn D．for; to learn 【答案】D 【详解】句意：学好英语对我们来说很重要。 考查it的固定句型。根据“It’s important...us...English well”可知此处是结构it is adj. for sb. to do sth.“做某事对某人来说是……的”，it作形式主语，真正的主语是动词不定式。故选D。 29．I think ________ necessary ________ us to do something useful to protect the birds. A．that, for B．it, of C．it, for 【答案】C 【详解】句意：我认为我们有必要做一些有用的事情来保护鸟类。 考查it的固定结构。that那个；for为了；it它；of……的。此处是结构think it adj. for sb. to do sth.“认为做某事对某人来说是……的”，it作形式宾语，真正的宾语是动词不定式。故选C。 30．It is very kind ________ you to help me with my lessons. It is really hard ________ me to learn them well. A．of; for B．of; of C．for; of D．for; for 【答案】A 【详解】句意：你帮我补课，你很善良。对我来说学好它们真的很困难。 考查介词用法。It’s adj. for/of sb. to do sth.“对某人来说做某事是……的”，固定句型，当形容词修饰人的品格时，如kind、nice等，介词一般用of；当形容词修饰事情的特点时，如hard、difficult等，介词一般用for。故选A。 二、完成句子(本大题共10小题，每小题4分，共40分) 31．对我们来说，与这些特殊的运动员密切合作是很棒的。 It is great for us these special athletes. 【答案】 to work closely with 【详解】对照中英文可知缺少“与……密切合作”，“与……密切合作”work closely with，副词closely修饰动词work；且此句是it是形式主语，应用不定式作真正主语。故填to；work；closely；with。 32．你这样对老人大喊大叫是没有礼貌的。 It’s you at the elderly. 【答案】 impolite of to shout 【详解】根据中英文对照可知，空处缺少内容“对某人大喊大叫是不礼貌的”，“it is adj of sb to do”表示“某人做某事是……的”，impolite“没有礼貌的”，shout at“对某人大喊大叫”。故填impolite；of；to；shout。 33．张老师真耐心，他仔细听我们的问题。 It’s Mr Zhang to our problems carefully. 【答案】 patient of to listen 【详解】根据中英文对照可知，句中缺少“耐心”和“听”的英文内容。句中是固定句型“It’s+形容词+of sb. to do sth.”，句型中形容词描述的是人的品质、性格等，patient“耐心的”描述张老师的品质，因此使用介词of；to do sth.是动词不定式作真正的主语，listen to“听”。故填patient；of；to；listen。 34．没有志愿者的帮助, 对他们来说完成这项工作是不可能的。 It’s impossible to finish the work the help of volunteers. 【答案】 for them without 【详解】根据中英文对照可知，It’s impossible for sb. to do sth.“对某人来说做某事是不可能的”，时态是一般现在时，for them“对他们来说”，介词without“没有”，故填for；them；without。 35．他很勇敢，参加了比赛。 It was very brave the competition. 【答案】 of him to join 【详解】根据中英文对照可知，空格处缺“他参加”。“It’s+形容词+of sb. to do sth.”是一个固定句型，当形容词描述人的性格、品质等时用of ，这里“brave”是描述人的品质，所以用of him；“参加比赛”常用“join the competition”，“to”后接动词原形，所以用join。故填of；him；to；join。 36．这些志愿者有必要在执行任务前接受培训。 It was these volunteers training before doing the task. 【答案】 necessary for to receive 【详解】It is necessary for sb. to do sth.“对于某人来说做某事是有必要的”；receive“接受”。该句是It作形式主语，所以用动词不定式作真正的主语。故填necessary；for；to； receive。 37．对我们来说，保持好心情是必要的。 for us to be in a good mood. 【答案】 It’s necessary 【详解】对比所给中英文可知，此处为固定句式“It’s+adj.+for sb. to do sth.”，意为“对某人来说，做某事是……的”，necessary“必要的”。故填It’s；necessary。 38．对很多老师来说，一对一的开展他们的工作是困难的。 It is hard . 【答案】 for many teachers to do their work one-on-one/one-to-one 【详解】此处为“it is hard for sb to do sth.”做某事对某人来说很困难；“many teachers”很多老师；“do one’s work”开展某人的工作，“their”他们的；“one-on-one/one-to-one”一对一的。故填for；many；teachers；to；do；their；work；one-on-one/one-to-one. 39．他很善良，帮助盲人过马路。 It’s the street. 【答案】kind of him to help the blind cross 【详解】根据英汉对照可知，此处缺少“他很善良，帮助盲人过”，固定句型it’s+形容词+of sb. to do sth，表示“某人做某事是怎样的”。kind善良；help帮助，help sb do sth表示“帮助某人做某事”；the blind盲人；cross the street过马路。故填kind of him to help the blind cross。 40．把血捐给有需要的人，他真是善良极了。 It’s kind people in need. 【答案】of him to donate blood to 【详解】根据中英文对照可知空格处缺“他”以及“把血捐给”的中文翻译。本题考查句型“It is+adj.+of sb to do sth某人做某事是……样的”，在“It’s kind”后面接“of him”表示“他”；“把血捐给”对应的英文是“donate blood to”。故填of him to donate blood to。 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $$ 班级 姓名 学号 分数 Unit 6 Sunshine for all It’s +adj+of或for+sb+to do的用法 （时间：60分钟，满分：100分） ★句型一：It is + adjective + to do something. We use “It is+adj.+to-infinitive” to express what we think about something.含义：“做某事是……的”。 如： It’s important to plant more trees. It’s necessary to keep parks clean. 注意：该句型中的形容词表示不定式所具备的特征或客观情况。常用的形容词有：cheap, convenient, dangerous, difficult, easy, exciting, expensive, important, interesting, necessary, normal, possible, useful, wonderful等等。 ★句型二：It is + adjective + for sb. + to do sth. We use “It is+adj.+for…+to-infinitive” to specify who we are talking about.含义：“对某人来说做某事是……的” It’s important for people to learn good manners. It’s dangerous for children to play on the street. 注意：该句型中的形容词也是表示不定式所具备的特征或客观情况，和句型一相同。 ★句型三：It is + adjective + of sb. + to do sth. We use “It is+adj.+of…+to-infinitive” to express what we think of someone’s actions.含义：“某人做某事真是/太……了”。如： It is very nice of you to offer me a seat. It is careless of him to lose so many things. 注意：该句型中的形容词描述的是人的特征、品质。常用的形容词有：brave, careless, clever, foolish, generous, good, helpful, honest, kind, nice, polite, silly, stupid, wrong等等。 一、单项选择(本大题共30小题，每小题2分，共60分) 1．Sophia is good at English. I think it’s easy ________ her ________ English well. A．for; to learn B．of; to learn C．for; learning D．of; learning 2．It is________ of you to________ money to the local charity. A．important; donating B．generous; raising C．meaningful; raise D．helpful; donate 3．—Let me help you carry the box, Ms Wang. —Thank you, Li Ping. It’s very nice ________ you ________ me. A．of; to help B．for; to help C．of; helping D．for; helping 4．________ is better to be safe than sorry. A．What B．This C．That D．It 5．—All of us think ________ dangerous for children to play with fire. —I agree. It’s important ________ to be safe all the time. A．it is; of them B．it; for them C．that is; of them D．that; for them 6．Is ________ possible to fly to the Moon in a spaceship? A．this B．that C．it D．/ 7．—What do you think of tomorrow’s basketball match? —I think________ difficult for us________ the match. A．we’ll be; winning B．it’ll be; winning C．we’ll be; to win D．it’ll be; to win 8．It is wrong ________ us ________ look down upon (看不起) the disabled people. A．of; to B．for; for C．to; to D．of; for 9．It’s necessary ________ us to keep the classroom ________ every day. A．for; clean B．of; clean C．for; cleaning D．of; cleaning 10．It’s very nice ________ you to give me such a chance. A．to B．for C．of D．at 11．________ is really exciting ________ them to take part in such ________ event. A．It; for; an B．It; to; an C．This; for; a D．This; to; a 12．It’s really ________ him to save the boy out of the fire. A．wise of B．wise for C．brave for D．brave of 13．We think it is difficult ________ them ________ the charity walk without team spirit (精神). A．for; to finish B．of; to finish C．for; finishing D．of; finishing 14．It is impossible ________ me ________ all the new words in such a short time. A．of; to remember B．of; remember C．for; remember D．for; to remember 15．I think it is ________ for me to do so much housework while my brother does nothing. A．necessary B．useful C．unfair D．usual 16．It’s very kind ________ you ________ me with my English. A．for, to help B．of, helping C．of, to help D．for, helping 17．It’s really nice ________ you to help her answer them. A．for B．of C．to 18．It’s time for us ________ hiking. Let’s ________ to the forest. A．to go; go B．to go; to go C．go; go D．going; go 19．It was careless ________ Mary ________ her camera in the zoo. A．for; lose B．of; lose C．for; to lose D．of; to lose 20．It is important for us ________ for a while after heavy work. A．to rest B．resting C．rest D．rests 21．It’s important ________ a foreign language. A．of us to learn B．for us to learn C．of us learning D．for us learning 22．It’s generous ________ him to donate money to the poor. It’s really meaningful ________ us students to learn from him. A．of; of B．for; for C．for; of D．of; for 23．It is cruel ________ those hunters ________ elephants just for their ivory. A．of, to kill B．for, killing C．for, to kill D．of, killing 24．It’s very nice ________ you to say so. A．of B．for C．with D．to 25．It’s ________ for volunteers to receive training before doing the tasks. A．special B．necessary C．possible D．comfortable 26．It’s nice ________ you ________ me with my English. A．for; to help B．of; helping C．of; to help 27．—It’s important ________ us to do exercises every day. —Yes, it can keep us healthy. A．about B．with C．for D．of 28．It’s important ________ us ________ English well. A．of; learning B．or; learning C．of; to learn D．for; to learn 29．I think ________ necessary ________ us to do something useful to protect the birds. A．that, for B．it, of C．it, for 30．It is very kind ________ you to help me with my lessons. It is really hard ________ me to learn them well. A．of; for B．of; of C．for; of D．for; for 二、完成句子(本大题共10小题，每小题4分，共40分) 31．对我们来说，与这些特殊的运动员密切合作是很棒的。 It is great for us these special athletes. 32．你这样对老人大喊大叫是没有礼貌的。 It’s you at the elderly. 33．张老师真耐心，他仔细听我们的问题。 It’s Mr Zhang to our problems carefully. 34．没有志愿者的帮助, 对他们来说完成这项工作是不可能的。 It’s impossible to finish the work the help of volunteers. 35．他很勇敢，参加了比赛。 It was very brave the competition. 36．这些志愿者有必要在执行任务前接受培训。 It was these volunteers training before doing the task. 37．对我们来说，保持好心情是必要的。 for us to be in a good mood. 38．对很多老师来说，一对一的开展他们的工作是困难的。 It is hard . 39．他很善良，帮助盲人过马路。 It’s the street. 40．把血捐给有需要的人，他真是善良极了。 It’s kind people in need. 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $$