专题09 if 引导的条件状语从句-【寒假分层作业】2025年八年级英语寒假培优练（人教版）

专题09 if引导的条件状语从句 内容早知道 ☛第一层 巩固提升练 考点一 if引导的条件状语从句 ☛第二层 能力培优练 ☛第三层 拓展突破练 if引导的条件状语从句 【知识积累·练前热身】 一、If引导的条件状语从句的定义 条件状语从句在复合句中作条件状语，表示假如有从句的动作发生或从句的状态存在，就会导致主句的动作发生或状态存在。条件状语从句常由连词if引导。 二、If引导的条件状语从句的句式结构 if引导的从句用于表示条件，主句用于表示结果。 例句：If it doesn't rain, I will go to the cinema tomorrow. 从句 主句 三、If引导的条件状语从句中的时态 1.主将从现：主句用一般将来时，从句用一般现在时。 If I am free this weekend, I will go to the bookstore. = I will go to the bookstore if I am free this weekend. 2.主情从现：主句含有情态动词，从句用一般现在时 。 She may feel sad if you don’t come. 3.主祈从现：主句是祈使句，从句用一般现在时 Don’t wait for me if I’m late. 一、单项选择 1．—I failed again! I feel very upset. —Don’t lose heart. If you ________ going, you will make it finally! A．keep B．kept C．will keep D．are keeping 【答案】A 【详解】句意：——我又失败了！我感到很沮丧。——别灰心。如果你坚持下去，你最终会成功的！ 考查时态。keep原形；kept过去式；will keep一般将来时；are keeping现在进行时。根据“If you …going, you will make it finally!”可知本句是if引导的条件状语从句，遵循“主将从现”原则，从句应用一般现在时。故选A。 2．If it ________ tomorrow, I won’t go shopping with my mom. A．rain B．rains C．doesn’t rain D．don’t rain 【答案】B 【详解】句意：如果明天下雨，我就不跟妈妈去购物了。 考查主谓一致。由“If it…tomorrow, I won’t go shopping with my mom”可知，此处表示如果明天下雨，我就不和妈妈去购物了，it作主语，动词用第三人称单数。故选B。 3．—Let’s go on a trip in the nature park if it ________ tomorrow. —Oh, I’m looking forward to a nice day. A．isn’t raining B．won’t rain C．doesn’t rain 【答案】C 【详解】句意：——如果明天不下雨，我们就去自然公园旅行吧。——哦，我期待着一个美好的一天。 考查动词时态。if引导条件状语从句，遵循“主将从现”原则，从句需用一般现在时，rain“下雨”，主语是it，否定句借助于助动词doesn’t。故选C。 4．There ________ a sports meet next week if it ________. A．is going to have; doesn’t rain B．is going to be; doesn’t rain C．is going to be; won’t rain D．is going to have; won’t rain 【答案】B 【详解】句意：如果不下雨，下周我们将有运动会。 考查there be句型及时态。there be句型的将来时是“There is going to be”，可排除AD项；本句包括if引导的条件状语从句，主句是一般将来时，从句要用一般现在时，即“主将从现”。故选B。 5．I don’t know if he ________ here. If he ________, I will tell you. A．comes; comes B．will come; will come C．will come; comes D．comes; will come 【答案】C 【详解】句意：我不知道他是否会来这里。如果他来了，我会告诉你。 考查动词时态。第一个空是if引导的宾语从句，根据语境判断动作还未发生，因此用一般将来时态“will come”；第二个空是if引导的条件状语从句，遵循“主将从现”原则，即主句用一般将来时，从句用一般现在时，主语是he，动词用第三人称单数形式comes。故选C。 6．—Don’t forget to protect your eyes well ________ you take online classes. —OK. Thank you, sir. A．if B．or C．so D．till 【答案】A 【详解】句意：——如果你上网课，不要忘记保护好你的眼睛。——好的，谢谢您，先生。 考查连词辨析。if如果；or否则；so所以；till直到。分析题干可知，“you take online classes”是前句的条件，应用连词if引导条件状语从句。故选A。 7．I don’t know if it ________ sunny tomorrow. If it ________ sunny, I will go fishing. A．will be; is B．is; will be C．will be; is going to be D．is; is 【答案】A 【详解】句意：我不知道明天是不是晴天。如果天气晴朗，我就去钓鱼。 考查动词时态。第一句是由if引导的宾语从句，主句时态为一般现在时，又根据“tomorrow”可知，宾语从句应用一般将来时，其结构为“will be”；第二句是由if引导的条件状语从句，应遵循“主将从现”原则，从句应用一般现在时，且从句主语it表示单数概念，谓语动词应用is。故选A。 8．Remember to take away the food on your plate ________ you can’t eat it up. A．if B．unless C．after D．before 【答案】A 【详解】句意： 如果你不能吃完的话记着带走你盘子里的食物。 考查连词。if如果；unless除非；after在……之后；before在……之前。根据“Remember to take away the food on your plate...you can’t eat it up.”可知，前后是条件关系，用if引导条件状语从句。故选A。 9．I ________ you with your English if you come tomorrow. A．help B．helps C．helped D．will help 【答案】D 【详解】句意：如果你明天来，我会帮你学英语。 考查动词时态。if引导的条件状语从句，遵循“主将从现”，因此空处所在句子为一般将来时(will do)。故选D。 10．You ________ more confident if you are well-prepared for your speech. A．will be B．are C．were D．have been 【答案】A 【详解】句意：如果你好好准备你的演讲，你将会更加自信。 考查if条件句时态。if引导条件状语从句，应遵循“主将从现”时态原则，即主句用一般将来时，从句用一般现在时。空格处为主句部分，故用一般将来时，故选A。 11．—I’m not sure if he _________ to the party this Sunday. —I will tell you if he ________. A．comes, comes B．will come, comes C．will come, will come 【答案】B 【详解】句意：——我不确定他是否会来参加这个星期天的聚会。——如果他来，我会告诉你的。 考查动词时态。第一空所在的句子为宾语从句，表示将来，时态用一般现在时；第二空所在的句子为条件状语从句，主句是一般将来时，从句通常用一般现在时表示将来。故选B。 12．If you smile at others, they ________ back. A．smile B．will smile C．smiled D．smiles 【答案】B 【详解】句意：如果你对别人微笑，别人也会对你微笑。 考查时态。句中“If”意为“如果”，引导条件状语从句，遵循主将从现原则，故主句中应用一般将来时，其构成为“will do”。故选B。 二、选词填空 用方框内所给单词的适当形式填空 name, act, novel, if, twenty 13．You can stay here with me for the weekend you like. 14．After the second child was born, the young parents him Johnson. 15．What are you going to buy for your sister on her birthday, Daming? 16．People can see the changes in Chinese society from the three of Teahouse. 17．The old man is reading a with a cup of tea in his hand near the window. 【答案】13．if 14．named 15．twentieth 16．acts 17．novel 【解析】13．句意：如果你愿意，你可以在这里和我一起过周末。根据“You can stay here with me for the weekend”和“you like”可知，两句之间是条件关系，所以用if“如果”引导条件状语从句。故填if。 14．句意：第二个孩子出生后，年轻的父母给他起名叫约翰逊。根据句意及备选词可知，此空意为“给……起名”；根据前面的“After the second child was born”可知，也用一般过去时。所以填动词name“给……起名”的过去式named。故填named。 15．句意：大明，你打算在你妹妹二十岁生日那天给她买什么？根据句意及备选词可知，此空应填基数词twenty的序数词twentieth“第二十”，twentieth birthday“二十岁生日”。故填twentieth。 16．句意：人们可以从茶馆的三幕中看到中国社会的变化。根据句意及备选词可知，此空应填名词act“（戏剧等）一幕”的复数acts。故填acts。 17．句意：老人手里拿着一杯茶在窗边看小说。根据空前的“is reading a”可知，此空应填一个单数名词；结合备选词可知，应填novel“小说”，read a novel“看小说”。故填novel。 三、单词拼写 18．Who can help us with our English if Mr. White (not be) here next week? 【答案】isn’t 【详解】句意：如果下周怀特先生不在，谁能帮我们学习英语？结合提示词“not be不是”和“if”引导条件状语从句可知，此处遵循“主将从现”的原则，所以从句要用一般现在时，且主语“Mr. White”为第三人称单数名词，所以该空要填“isn’t不是”，为系动词。故填isn’t。 19．If he (be not) careful, he may lose his way in the rainforest. 【答案】isn’t 【详解】句意：如果他不小心，他可能会在雨林里迷路。if引导的条件状语从句用一般现在时，主语是he，be动词用is，否定形式是isn’t。故填isn’t。 20．If you see Alice, (tell) her to visit Mrs. King. 【答案】tell 【详解】句意：如果你看到爱丽丝，告诉她去拜访金夫人。tell“告诉”；分析句子可知，此处是if引导的条件状语从句，遵循“主祈从现”，即主句是祈使句。故填tell。 21．If we (向……许诺) other people, we should always keep them. 【答案】 make promises to 【详解】句意：如果我们对别人做出承诺，我们应该始终遵守。根据“If we...other people, we should always keep them.”和汉语提示可知，make promises to sb表示“向……许诺”，句子为if引导的条件状语从句，从句时态为一般现在时，主语为we，复数，动词make用原形。故填make；promises；to。 22．Jack will not come to see the pandas in the zoo if he (not be) free. 【答案】is not/isn’t 【详解】句意：如果杰克没空，他就不会来动物园里看熊猫了。if引导的条件状语从句需遵循“主将从现”的原则，即主句用一般将来时，从句用一般现在时表示将来。根据题干中主句“Jack will not come to see the pandas in the zoo”的时态为一般将来时，可知从句的时态应为一般现在时。从句的主语是“he”，是第三人称单数形式，故谓语动词应使用第三人称单数形式“is”，其否定形式为“is not”或“isn’t”。故填is not/isn’t。 23．Everything will be better if we t (看待) it actively. 【答案】(t)reat 【详解】句意：如果我们积极对待，一切都会好起来的。根据中文提示和首字母，treat“看待”符合语境，结合“Everything will be better if we”可知，这是if引导的条件状语从句，从句使用一般现在时，主语是“we”，动词填原形。故填(t)reat。 24．If a person (across) the river of difficulty, he will see a different beauty. 【答案】crosses 【详解】句意：如果一个人渡过难关，他会看到一种不同的美。If条件状语从句应遵从“主将从现”原则，从主句为一般将来时，从句为一般现在时，主语a person为第三人称单数，空处谓语动词用三单形式，across“横过”介词，动词为cross。故填crosses。 四、完成句子 25．Unless it rains tomorrow, we will go to have a picnic. (同义句改写) it tomorrow, we will go to have a picnic. 【答案】 If doesn’t rain 【详解】句意：除非明天下雨，否则我们将去野餐。分析句子可知，此处可以表达为“如果明天不下雨，我们将去野餐”，用if引导的条件状语从句，从句用一般现在时，it作主语，助动词does，此处表示否定，用doesn’t，其后跟动词原形rain，意为“下雨”。故填If；doesn’t；rain。 26．如果我有时间，我会和他一起去看电影。 time, I will go to the movies with him. 【答案】 If I have 【详解】根据中英文对照可知，此三空意为“如果我有……”。if“如果”，have time“有时间”；根据主句“I will go to the movies with him”可知，从句用一般现在时，即“主将从现”。故填If；l；have。 27．Tom spends much time on the computer. His mother isn’t happy. (用if合并为一句) Tom spends much time on the computer, his mother happy. 【答案】 If won’t be 【详解】句意：汤姆花很多时间玩电脑。他的妈妈不高兴。用if合并为一句，可以表达为“如果汤姆花很多时间玩电脑，他的妈妈会不高兴。”。此处为if引导的条件状语从句，遵循“主将从现”原则。根据“Tom spends much time on the computer. His mother isn’t happy. ”可知，主句用一般将来时“will do”，从句用一般现在时，所以合并为“If Tom spends much time on the computer, his mother won’t be happy”。故填If；won’t；be。 28．如果你认为你是对的，那就坚持你的想法。 If you think you are right, just your idea. 【答案】 stick to 【详解】根据所给句意可知，空白处对应中文为“坚持”，stick to sth“坚持某事”。再结合本句为if引导的条件状语从句，从句为一般现在时，主句为祈使句，因此用动词原形。故填stick；to。 29．如果碰到麻烦，要赶紧向人求救。 If you , don’t hesitate to ask for help. 【答案】 get in/into trouble 【详解】通过中英文句子的对照可知，英文句子中缺少“遇到麻烦”的表达；get in/into trouble“遇到麻烦”，固定词组；if引导条件状语从句，主句“don’t hesitate to ask for help”为祈使句，从句使用一般现在时，主语是you，所以用动词原形。故填get；in/into；trouble。 30．如果可能的话，明天早点来这里。 Come here earlier tomorrow . 【答案】 if possible 【详解】对比中英文可知，空处缺少“如果可能的话”，其英文表达为if possible；该句为省略句，完整的句子为if it is possible。故填if；possible。 一、语法选择 Once upon a time, there lived a farmer. He grew very good corn. Every year, he would take part in the state farmers fair and win 1 first prize for his corn. The farmer’s story reached the ears of a reporter. The reporter asked the farmer 2 he grew his corn and learned something interesting about it—the farmer shared his 3 corn seeds (种子) with his neighbors. “There are competitions 4 you and your neighbors. Why do you do that when some of their corn 5 be as good as yours?” the reporter asked. “The wind picks up pollen (花粉) from the corn and carries it from field to field. If my 6 corn is not so good, it will make my corn bad. If I want to grow good corn, I must help them 7 their corn, too,” said the farmer. So it is with our lives: If you 8 to live in peace, you must help others around you to live in peace. By helping others, you help 9 . So, do not be afraid to share your experience and good ideas with others. You will be 10 that people around you will be willing to help you out in return. 1．A．a B．an C．the 2．A．how B．why C．when 3．A．nice B．nicer C．the nicest 4．A．between B．below C．behind 5．A．need B．should C．might 6．A．neighbor B．neighbors C．neighbors’ 7．A．improve B．improved C．improving 8．A．choose B．are choosing C．will choose 9．A．you B．your C．yourself 10．A．surprise B．surprised C．surprising 【答案】 1．C 2．A 3．B 4．A 5．C 6．C 7．A 8．A 9．C 10．B 【导语】本文主要讲述了一个记者去采访一个因种植优质玉米而赢得比赛的农夫的事件。通过了解农夫获胜的秘诀感悟到我们的生活哲理，即帮助别人就是在帮助自己。 1．句意：每年，他都会参加州农民博览会，并因他的玉米获得一等奖。 a不定冠词，修饰以辅音音素开头的单词；an不定冠词，修饰以元音音素开头的单词；the定冠词。序数词前加定冠词the。故选C。 2．句意：记者问这位农民是如何种植他的玉米的，并了解到了一些有趣的事情——这位农民与邻居分享了他更好的玉米种子。 how如何；why为什么；when什么时候。根据“ he grew his corn”可知他是如何种植玉米的。故选A。 3．句意：记者问这位农民是如何种植他的玉米的，并了解到了一些有趣的事情——这位农民与邻居分享了他更好的玉米种子。 nice好的，原级；nicer比较级；the nicest最高级。根据“corn seeds (种子) with his neighbors.”可知他的玉米种子比邻居的要好，故此处用比较级。故选B。 4．句意：你和你的邻居之间有竞争。 between在两者之间；below在……下方；behind在……后面。根据“you and your neighbors”可知是在你和邻居之间有竞争。故选A。 5．句意：当他们的一些玉米可能和你的一样好的时候，你为什么要这样做？ need需要；should应该；might可能。根据“some of their corn...be as good as yours”可知一些邻居的玉米可能和你的一样好。故选C。 6．句意：如果我邻居的玉米不好，我的玉米就会变坏。 neighbor邻居，名词单数；neighbors名词复数；neighbors’名词所有格。修饰名词corn用名词所有格。故选C。 7．句意：如果我想种好玉米，我也必须帮助他们改良玉米。 improve提高，动词原形；improved动词过去式；improving动名词。help sb. do sth.“帮助某人做某事”。故选A。 8．句意：如果你选择和平相处，你必须帮助周围的人和平相处。 choose选择，动词原形；are choosing现在进行时；will choose一般将来时。if引导的条件状语从句遵循主将从现，从句用一般现在时，主语是you，谓语动词用原形。故选A。 9．句意：通过帮助别人，你帮助了自己。 you你；your你的；yourself你自己。主语和宾语的人称一致，故此处用反身代词。故选C。 10．句意：你会惊讶地发现，你周围的人会愿意帮助你作为回报。 surprise惊讶，名词；surprised吃惊的，形容词，形容人；surprising令人惊讶的，形容词，形容物。作be动词的表语用形容词，形容人用surprised。故选B。 二、阅读理解 With their long tusks (象牙), elephants look strong. However, they also make the animal endangered. Many of them are killed for their tusks. People make elephant tusks into crafts (工艺品) and jewelry and sell them to rich people. But can these priceless body parts grow back? The answer is no, Live Science said. The elephants’tusks are actually part of their teeth. Nearly all African elephants and most male Asian elephants have these long teeth. About one-third of the tusk is in the animal’s skull (头骨). The tusk has a nerve (神经) running down its center. This makes it similar to your teeth. Once you lose a teeth, you will never grow a new one. Elephants use their tusks to protect themselves, lift things, dig for water and gather food. But losing the tusk will not kill them. How they lose the tusk is what matters. Usually, people get tusks by culling (限量捕杀), which means killing old and weak elephants. They also take tusks from the elephants that have died naturally. However, these sources aren’t enough to keep up with the need for tusks. Therefore, some poachers (偷猎者) kill healthy elephants and cut their faces open to remove the tusks. About 27,000 elephants are killed by poachers each year, according to National Geographic. As a result of poaching, some African clephants have gradually evolved (进化) without tusks, which has helped them avoid being killed. In Mozambique, about 90percent of African elephants were killed for their ivory and meat from 1975 to 1992, National Geographic reported. Scientists found that about a third of younger-females—the generation born after 1992—never developed tusks. 11．According to the passage, why are elephants endangered? A．Because people killed them for their tusks. B．Because the environment is getting bad. C．Because it is hard for them to eat with long tusks. D．Because their tusks are weak and useless. 12．Elephants use their tusks to do many things except (除了) ________. A．protecting themselves B．lifting things C．taking a shower D．collecting food 13．What does the National Geographic report say? A．About 27,000 elephants are killed by poachers each year. B．The number of poachers has been going down in recent years. C．About 90 percent of all elephants in the world were killed from 1975 to 1992. D．Some African elephants have evolved without tusks due to poaching. 14．What can we infer from the story? A．People will stop buying crafts made out of tusks. B．Some of future newborn elephants may never grow tusks. C．The number of elephants will go up if the environment improves. D．Elephants may evolve into a completely new species. 15．Which part of a newspaper can this passage be taken from? A．Sports. B．Animals. C．Arts. D．Crafts. 【答案】11．A 12．C 13．A 14．B 15．B 【导语】本文是一篇说明文。文章主要介绍了象牙的特点和功能以及人们猎杀大象的原因，大象正因此而濒危；一些非洲大象为了生存，出生时就没有象牙；文章呼吁大家抵制象牙制品，从而保护大象。 11．细节理解题。根据“With their long tusks (象牙), elephants look strong. However, they also make the animal endangered. Many of them are killed for their tusks.”可知，为了获取象牙许多大象被杀，这是导致大象濒临灭绝的原因。故选A。 12．细节理解题。根据“Elephants use their tusks to protect themselves, lift things, dig for water and gather food.”可知，大象用象牙来保护自己、举起重物、挖水和收集食物，没有提到大象用象牙洗澡。故选C。 13．细节理解题。根据“About 27, 000 elephants are killed by poachers each year, according to National Geographic.”可知，据《国家地理》报道，每年约有2.7万头大象被偷猎者杀害。故选A。 14．推理判断题。根据“Scientists found that about a third of younger females—the generation born after 1992—never developed tusks.”可知，科学家们发现，大约三分之一的年轻雌性——1992年以后出生的一代——从未长出象牙；据此可以推断，未来的新生大象可能永远长不出象牙。故选B。 15．推理判断题。综合全文可知，本文主要介绍了象牙的特点、象牙的功能以及人们猎杀大象的原因，大象因此而濒危；一些非洲大象为了生存，出生时就没有象牙，文章呼吁大家抵制象牙制品，从而保护大象；据此可以推断，本文出自报纸的动物版块。故选B。 三、短文填空 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。（必要时可加助动词或情态动词） Laura is a 16 (care) girl. Last Monday, she 17 (plan) to organize a class meeting. She got up very early to school, but she found that her wallet was lost. She was very sad. “If I tell my mother, she 18 (be) angry. What should I do?” she thought. She got upset. Finally, she decided 19 (ask) people for some advice. Her friend asked her to keep it to 20 (her). An expert—Mrs Hand has more experience and gave her advice, too. She said, “You should tell your mother about it. She would understand you and forgive you.” In the end, Laura took Mrs. Hand's advice. Her mother didn’t get angry. Instead, she said, “ You are an honest girl.” 【答案】16．careless 17．planned 18．will be 19．to ask 20．herself 【导语】本文主要讲述了Laura丢失钱包后的心理挣扎、寻求建议的过程以及最终向妈妈坦白并得到妈妈理解的故事，体现了诚实的重要性。 16．句意：Laura是一个粗心的女孩。根据“girl”可知此处需要形容词来修饰名词，care的形容词是careful/careless，意为“细心的/粗心的”，根据“She got up very early to school, but she found that her wallet was lost.”可知，她是一个粗心的女孩子。故填careless。 17．句意：上个星期一，她计划组织一次班会。根据“Last Monday”可知时态是一般过去时，plan的过去式是planned。故填planned。 18．句意：如果我告诉我妈妈，她会生气的。根据语境可知if引导的条件状语从句遵循主将从现原则，主句是一般将来时，从句用一般现在时表示将来。故填will be。 19．句意：最后，她决定向人们寻求一些建议。根据“decided”可知decide to do sth决定做某事，固定搭配，此处用不定式to ask。故填to ask。 20．句意：她的朋友让她保守秘密。根据“keep it to”可知keep sth to oneself保守秘密，固定搭配，此处用反身代词herself。故填herself。 一、语法选择 During the Song Dynasty (960-1279), there was an official named Zhang Guaiya 1 worked in Chongyang county (县), in today’s Hubei. Theft was common–even money from the county’s vault (钱库) 2 . One day, Zhang saw a low-ranking official (小吏) 3 out of the vault in a panic (慌张). Zhang stopped him and asked, “Why are you 4 such a hurry?”   “No reason,” said the official. Zhang remembered the things stolen from the vault. So he asked the guards to search the official 5 . They found a copper coin (铜钱) in 6 headband (头巾). Zhang asked him how much more money he had stolen. The official refused to admit (承认) that he stole   7 . Zhang ordered the guards to beat him. The official didn’t 8 . He said, “I only stole a copper coin. You 9 kill me just because of that!” Zhang was very angry. He wrote with a red pen, “If you steal a coin every day, there 10 a thousand coins after a thousand days. Constant dripping wears away a stone (水滴石穿).” “Constant dripping wears away a stone.” This saying 11 us that small things done over time can make a big 12 . On the one hand, it reminds us 13 small bad things. On the other hand, it tells us to persevere (坚持不懈). Take learning a language, for example. There is no shortcut (捷径) to success. You have to persist, learning new words, reading and writing. Within a short period, you might not see progress. But 14 you stick to it for months or years, you will make breakthroughs (突破). President Xi Jinping once mentioned (提到) this saying in a 1990 speech he made in Ningde, Fujian. Believing in it, Xi led local people to work hard 15 get rid of poverty (摆脱贫困). He often used it to encourage officials to fight against poverty. 1．A．which B．whom C．who D．\ 2．A．stole B．was stole C．was stolen D．were stolen 3．A．come B．comes C．came D．to come 4．A．on B．in C．at D．for 5．A．care B．careful C．carefully D．careless 6．A．he B．his C．him D．himself 7．A．something else B．else something C．anything else D．else anything 8．A．give up B．give in C．give away D．give off 9．A．can’t B．couldn’t C．mustn’t D．needn’t 10．A．are B．have C．will be D．will have 11．A．tell B．told C．is told D．tells 12．A．different B．differently C．difference D．differences 13．A．not doing B．don’t do C．not to do D．to not do 14．A．unless B．although C．because D．if 15．A．so B．or C．and D．but 【答案】 1．C 2．C 3．A 4．B 5．C 6．B 7．A 8．B 9．A 10．C 11．D 12．C 13．C 14．D 15．C 【导语】本文介绍国学故事——水滴穿石。 1．句意：宋朝（960年-1279年），有一个叫张乖崖的官员在重阳县工作，即今天的湖北。 which定语从句关系代词，先行词指物；whom定语从句关系代词，先行词指人，作宾语；who定语从句关系代词，先行词指人，作主语；\定语从句关系代词省略。此处为定语从句，先行词指人，作主语，关系代词用who。故选C。 2．句意：盗窃很常见，甚至连县金库里的钱也不例外被盗。 stole偷，过去式；was stole错误结构；was stolen偷，被动语态，一般过去时，单数；were stolen偷，被动语态，一般过去时，复数。vault作主语，单数，所给选项为动词steal，二者之间应为被动关系，可知用被动语态。故选C。 3．句意：一天，张见到一个级别不高的官员惊慌失措地走出保险库。 come来，原形；comes来，三单形式；came来，过去式；to come来，不定式结构。根据句式see sb do sth看见某人做过某事，可知用动词原形。故选A。 4．句意：张拦住他问道：“你怎么这么着急？” on在……上；in在……里；at在；for对于。短语in a great hurry匆忙地，可知用介词in。故选B。 5．句意：因此，他要求警卫仔细搜查这位小吏。 care关心，动词；careful小心，形容词；carefully仔细地，副词；careless粗心的，形容词。根据“Zhang remembered the things stolen from the vault.”可知张一定想仔细搜查这个小吏，副词修饰动词。故选C。 6．句意：他发现一个铜板在头巾里。 he他，主格；his他的，形容词性物主代词；him他，宾格；himself他自己。名词前面用形容词性物主代词。故选B。 7．句意：这位官员拒绝承认他偷了别的东西。 something else其他东西，用在肯定句中；else something错误结构；anything else其他东西，用在否定句或疑问句中；else anything错误结构。在肯定句中，不定代词用something ，形容词修饰不定代词时放在后面，可知用something else。故选A。 8．句意：这个官员没有屈服。 give up放弃；give in屈服，投降；give away赠送，分发；give off释放，放出，发出。根据“He said, ‘I only stole a copper coin.’”可知官员没有屈服。故选B。 9．句意：你不能因此而杀了我！ can’t不能；couldn’t不能；mustn’t不应该；needn’t不必。本句为直接引语，引述原话用说话时的时态，可知用一般现在时，小吏不能承认偷盗其他物品，认为不能杀他。故选A。 10．句意：如果你每天偷一枚硬币，一千天后就会有一千枚硬币。 are是，一般现在时be的复数形式；have有，一般现在时非三单形式；will be是，一般将来时；will have有，一般将来时。根据条件状语从句的“主将从现”规则，从句时态为一般现在时，主句应用一般将来时，表示将有“there will be”。故选C。 11．句意：这句话告诉我们，随着时间的推移，不断做一些小事可以带来很大的不同结果。 tell告诉，动词原形；told告诉，动词过去式；is told告诉，被动语态，一般现在时，单数，tells告诉，一般现在时，单数。此处叙述一个客观存在的事实用一般现在时态，主语是“this saying”,为单数。故选D。 12．句意：这句话告诉我们，随着时间的推移，不断做一些小事可以带来很大的不同结果。 different不同的；differently不同地；difference不同点；differences不同点（复数）。短语make a difference产生作用或影响，可知选difference。故选C。 13．句意：一方面，它提醒我们不要做小坏事。 not doing动名词，否定形式；don’t do否定形式；not to do不定式，否定形式；to not do错误结构。remind sb not to do提醒某人不要做某事，可知选不定式的否定形式。故选C。 14．句意：但如果你坚持几个月或几年，你就会取得突破。 unless如果不；although尽管；because因为；if如果。“ you stick to it for months or years”是“you will make breakthroughs”的肯定条件，可知选if。故选D。 15．句意：习主席领导当地人民努力工作，摆脱贫困。 so因此，连接因果关系；or或者，连接选择关系；and和，连接对等关系；but但是，连接转折关系。根据“work hard”和“get rid of poverty”是对等关系，可知选用并列连词and。故选C。 二、任务型阅读 阅读短文，根据短文内容，在短文后的空格里填入最恰当的单词（每空限填一词）。 A good book can teach you things beyond (超出) your class. It can open your eyes and clear your minds. If you want to develop (培养) a good reading habit, here are many ways. Plan your time You should give yourself at least thirty minutes for reading every day. When time is set, nothing can change it. For example, make it a habit to read after breakfast or lunch. Always carry a book Wherever you go, take a book with you. When you leave the house, make sure that you always carry a good book as well as your school things. Remember that a book always stays with you. Find a quiet place Find a place in your home where you can sit in a comfortable chair. When you read a book, no one will trouble you. There should be no televisions, computers, music or even noisy family members around you. Have a library card Have a library card, and you can read many good books in the library. Make it a weekly trip to the library. You can save a lot of money. Blog it One of the best ways to develop a good reading habit is to put it on your blog (博客). If you don’t have one, create (创造) one. It’s free. Ask your friends and family to go there to share their ideas and offer you advice. 16 to Develop a Good Reading Habit 17 your time You should read at least half an hour every day. Make it a habit to read after breakfast or lunch. Carrying a book Make sure a book always with you wherever you go. Finding a quiet place Find a place at home 18 a comfortable chair and without televisions, computers, music or noisy people around you. Having a library card It is a very cheap way to read good books in the library. Go on a trip to the library every 19 . Blogging it You don’t need to spend any 20 to create a blog. Your friends and family can share their ideas and offer you some advice. 【答案】16．How 17．Planning 18．with 19．week 20．money 【导语】本文讲述了培养良好阅读习惯的方法。 16．根据“If you want to develop (培养) a good reading habit, here are many ways.”可知，文章介绍了是如何培养良好阅读习惯，应用how。故填How。 17．根据小标题“Plan your time”可知，是指计划时间，plan应用动名词形式与Carrying、Finding和Having一致。故填Planning。 18．根据“Find a place in your home where you can sit in a comfortable chair”可知，这里强调的是找到一个有舒适椅子的地方，应填with表示伴随。故填with。 19．根据“Make it a weekly trip to the library”可知，应该每周去一次图书馆，every week“每周”。故填week。 20．根据“If you don’t have one, create one. It’s free.”可知，创建博客是免费的，不需要花钱。故填money。 三、选词填空 请从方框内选择适当的词并用其正确形式填空，使文章完整连贯。注意每空一词，每词仅用一次，有两词为多余项。请将答案写在答题卡对应题目的答题位置上。 if   program   twice   feeling   on   them   be   ago   give   in   same   help Amanda is a very kind girl. She 21 always ready to help people who are in trouble. Now Amanda is studying in college. At the 22 time, she volunteers to teach at Heart House in her free time. Heart House is an after-school 23 for children. It wants to help children who don’t do well 24 their study, and try to change their bad study habits. Many teachers here want these children to have great habits. Amanda goes to Heart House to teach the children 25 a week—on Monday and Saturday. She has set up a website (网站) to help these children, too. Because of Amanda’s website, every week 125 volunteers spend about four hours 26 the children at Heart House now. “We think Amanda is excellent. 27 we didn’t get the help of her website, Heart House would have difficulty finding enough volunteers,” says the program leader. “I always have a strong 28 all the things of satisfaction (满意) when I teach those kids how to study. I am proud (自豪的) of myself for making 29 learn more knowledge (知识). The happiest thing is that I can also learn a lot from them. I won’t 30 up volunteering after leaving college. I hope to go on teaching the kids who need help,” says Amanda. 【答案】 21．is 22．same 23．program 24．in 25．twice 26．helping 27．If 28．feeling 29．them 30．give 【导语】本文讲述了阿曼达在Heart House做志愿者的经历。 21．句意：她总是乐于帮助有困难的人。根据“always ready to help people who are in trouble.”可知，该句陈述事实，为一般现在时，备选词be符合语境，be ready to help“准备帮助”，主语是“She”，be动词填is。故填is。 22．句意：与此同时，她在空闲时间自愿在Heart House任教。根据“At the…time”可知，此处考查固定短语at the same time“同时”，备选词same符合题意，故填same。 23．句意：Heart House是一个儿童课后项目。根据“Heart House is an after-school”可知，应该说这是一个课后项目，备选词program符合语境，a接名词单数。故填program。 24．句意：它想帮助学习成绩不好的孩子，并试图改变他们不良的学习习惯。根据“who don’t do well…their study”可知，考查do well in“在某方面做得好”，备选词in符合语境。故填in。 25．句意：阿曼达每周一和周六去Heart House教孩子们两次。根据“a week—on Monday and Saturday.”可知，此处表示频率，备选词twice“两次”符合语境，twice a week“一周两次”。故填twice。 26．句意：由于阿曼达的网站，现在每周有125名志愿者花大约4个小时帮助心脏之家的孩子们。根据“every week 125 volunteers spend about four hours…the children”可知，此处是说的帮助，备选词help符合语境，且该句考查spend time doing“花时间做某事”，填动名词。故填helping。 27．句意：如果我们没有得到她的网站的帮助，Heart House将很难找到足够的志愿者。根据“we didn’t get the help of her website,”可知，设空处后为条件，备选词if“如果”符合语境，故填If。 28．句意：当我教这些孩子如何学习时，我总是有一种强烈的满足感。根据“I always have a strong”可知，这里指的有种感觉，备选词feeling“感觉”符合语境，a接名词单数。故填feeling。 29．句意：我为自己能让他们学到更多的知识而感到自豪。根据前文“when I teach those kids how to study.”可知，设空处指的是教他们更多知识，备选词them“他们”符合语境。故填them。 30．句意：大学毕业后，我不会放弃志愿服务。根据“up volunteering after leaving college”可知，此处指的是放弃志愿服务。备选词give符合语境，give up“放弃”，won’t接动词原形。故填give。 原创精品资源学科网独家享有版权，侵权必究！34 学科网（北京）股份有限公司 学科网（北京）股份有限公司zxxk.com 学科网（北京）股份有限公司 $$ 专题09 if引导的条件状语从句 内容早知道 ☛第一层 巩固提升练 考点一 if引导的条件状语从句 ☛第二层 能力培优练 ☛第三层 拓展突破练 if引导的条件状语从句 【知识积累·练前热身】 一、If引导的条件状语从句的定义 条件状语从句在复合句中作条件状语，表示假如有从句的动作发生或从句的状态存在，就会导致主句的动作发生或状态存在。条件状语从句常由连词if引导。 二、If引导的条件状语从句的句式结构 if引导的从句用于表示条件，主句用于表示结果。 例句：If it doesn't rain, I will go to the cinema tomorrow. 从句 主句 三、If引导的条件状语从句中的时态 1.主将从现：主句用一般将来时，从句用一般现在时。 If I am free this weekend, I will go to the bookstore. = I will go to the bookstore if I am free this weekend. 2.主情从现：主句含有情态动词，从句用一般现在时 。 She may feel sad if you don’t come. 3.主祈从现：主句是祈使句，从句用一般现在时 Don’t wait for me if I’m late. 一、单项选择 1．—I failed again! I feel very upset. —Don’t lose heart. If you ________ going, you will make it finally! A．keep B．kept C．will keep D．are keeping 2．If it ________ tomorrow, I won’t go shopping with my mom. A．rain B．rains C．doesn’t rain D．don’t rain 3．—Let’s go on a trip in the nature park if it ________ tomorrow. —Oh, I’m looking forward to a nice day. A．isn’t raining B．won’t rain C．doesn’t rain 4．There ________ a sports meet next week if it ________. A．is going to have; doesn’t rain B．is going to be; doesn’t rain C．is going to be; won’t rain D．is going to have; won’t rain 5．I don’t know if he ________ here. If he ________, I will tell you. A．comes; comes B．will come; will come C．will come; comes D．comes; will come 6．—Don’t forget to protect your eyes well ________ you take online classes. —OK. Thank you, sir. A．if B．or C．so D．till 7．I don’t know if it ________ sunny tomorrow. If it ________ sunny, I will go fishing. A．will be; is B．is; will be C．will be; is going to be D．is; is 8．Remember to take away the food on your plate ________ you can’t eat it up. A．if B．unless C．after D．before 9．I ________ you with your English if you come tomorrow. A．help B．helps C．helped D．will help 10．You ________ more confident if you are well-prepared for your speech. A．will be B．are C．were D．have been 11．—I’m not sure if he _________ to the party this Sunday. —I will tell you if he ________. A．comes, comes B．will come, comes C．will come, will come 12．If you smile at others, they ________ back. A．smile B．will smile C．smiled D．smiles 二、选词填空 用方框内所给单词的适当形式填空 name, act, novel, if, twenty 13．You can stay here with me for the weekend you like. 14．After the second child was born, the young parents him Johnson. 15．What are you going to buy for your sister on her birthday, Daming? 16．People can see the changes in Chinese society from the three of Teahouse. 17．The old man is reading a with a cup of tea in his hand near the window. 三、单词拼写 18．Who can help us with our English if Mr. White (not be) here next week? 19．If he (be not) careful, he may lose his way in the rainforest. 20．If you see Alice, (tell) her to visit Mrs. King. 21．If we (向……许诺) other people, we should always keep them. 22．Jack will not come to see the pandas in the zoo if he (not be) free. 23．Everything will be better if we t (看待) it actively. 24．If a person (across) the river of difficulty, he will see a different beauty. 四、完成句子 25．Unless it rains tomorrow, we will go to have a picnic. (同义句改写) it tomorrow, we will go to have a picnic. 26．如果我有时间，我会和他一起去看电影。 time, I will go to the movies with him. 27．Tom spends much time on the computer. His mother isn’t happy. (用if合并为一句) Tom spends much time on the computer, his mother happy. 28．如果你认为你是对的，那就坚持你的想法。 If you think you are right, just your idea. 29．如果碰到麻烦，要赶紧向人求救。 If you , don’t hesitate to ask for help. 30．如果可能的话，明天早点来这里。 Come here earlier tomorrow . 一、语法选择 Once upon a time, there lived a farmer. He grew very good corn. Every year, he would take part in the state farmers fair and win 1 first prize for his corn. The farmer’s story reached the ears of a reporter. The reporter asked the farmer 2 he grew his corn and learned something interesting about it—the farmer shared his 3 corn seeds (种子) with his neighbors. “There are competitions 4 you and your neighbors. Why do you do that when some of their corn 5 be as good as yours?” the reporter asked. “The wind picks up pollen (花粉) from the corn and carries it from field to field. If my 6 corn is not so good, it will make my corn bad. If I want to grow good corn, I must help them 7 their corn, too,” said the farmer. So it is with our lives: If you 8 to live in peace, you must help others around you to live in peace. By helping others, you help 9 . So, do not be afraid to share your experience and good ideas with others. You will be 10 that people around you will be willing to help you out in return. 1．A．a B．an C．the 2．A．how B．why C．when 3．A．nice B．nicer C．the nicest 4．A．between B．below C．behind 5．A．need B．should C．might 6．A．neighbor B．neighbors C．neighbors’ 7．A．improve B．improved C．improving 8．A．choose B．are choosing C．will choose 9．A．you B．your C．yourself 10．A．surprise B．surprised C．surprising 二、阅读理解 With their long tusks (象牙), elephants look strong. However, they also make the animal endangered. Many of them are killed for their tusks. People make elephant tusks into crafts (工艺品) and jewelry and sell them to rich people. But can these priceless body parts grow back? The answer is no, Live Science said. The elephants’tusks are actually part of their teeth. Nearly all African elephants and most male Asian elephants have these long teeth. About one-third of the tusk is in the animal’s skull (头骨). The tusk has a nerve (神经) running down its center. This makes it similar to your teeth. Once you lose a teeth, you will never grow a new one. Elephants use their tusks to protect themselves, lift things, dig for water and gather food. But losing the tusk will not kill them. How they lose the tusk is what matters. Usually, people get tusks by culling (限量捕杀), which means killing old and weak elephants. They also take tusks from the elephants that have died naturally. However, these sources aren’t enough to keep up with the need for tusks. Therefore, some poachers (偷猎者) kill healthy elephants and cut their faces open to remove the tusks. About 27,000 elephants are killed by poachers each year, according to National Geographic. As a result of poaching, some African clephants have gradually evolved (进化) without tusks, which has helped them avoid being killed. In Mozambique, about 90percent of African elephants were killed for their ivory and meat from 1975 to 1992, National Geographic reported. Scientists found that about a third of younger-females—the generation born after 1992—never developed tusks. 11．According to the passage, why are elephants endangered? A．Because people killed them for their tusks. B．Because the environment is getting bad. C．Because it is hard for them to eat with long tusks. D．Because their tusks are weak and useless. 12．Elephants use their tusks to do many things except (除了) ________. A．protecting themselves B．lifting things C．taking a shower D．collecting food 13．What does the National Geographic report say? A．About 27,000 elephants are killed by poachers each year. B．The number of poachers has been going down in recent years. C．About 90 percent of all elephants in the world were killed from 1975 to 1992. D．Some African elephants have evolved without tusks due to poaching. 14．What can we infer from the story? A．People will stop buying crafts made out of tusks. B．Some of future newborn elephants may never grow tusks. C．The number of elephants will go up if the environment improves. D．Elephants may evolve into a completely new species. 15．Which part of a newspaper can this passage be taken from? A．Sports. B．Animals. C．Arts. D．Crafts. 三、短文填空 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。（必要时可加助动词或情态动词） Laura is a 16 (care) girl. Last Monday, she 17 (plan) to organize a class meeting. She got up very early to school, but she found that her wallet was lost. She was very sad. “If I tell my mother, she 18 (be) angry. What should I do?” she thought. She got upset. Finally, she decided 19 (ask) people for some advice. Her friend asked her to keep it to 20 (her). An expert—Mrs Hand has more experience and gave her advice, too. She said, “You should tell your mother about it. She would understand you and forgive you.” In the end, Laura took Mrs. Hand's advice. Her mother didn’t get angry. Instead, she said, “ You are an honest girl.” 一、语法选择 During the Song Dynasty (960-1279), there was an official named Zhang Guaiya 1 worked in Chongyang county (县), in today’s Hubei. Theft was common–even money from the county’s vault (钱库) 2 . One day, Zhang saw a low-ranking official (小吏) 3 out of the vault in a panic (慌张). Zhang stopped him and asked, “Why are you 4 such a hurry?”   “No reason,” said the official. Zhang remembered the things stolen from the vault. So he asked the guards to search the official 5 . They found a copper coin (铜钱) in 6 headband (头巾). Zhang asked him how much more money he had stolen. The official refused to admit (承认) that he stole   7 . Zhang ordered the guards to beat him. The official didn’t 8 . He said, “I only stole a copper coin. You 9 kill me just because of that!” Zhang was very angry. He wrote with a red pen, “If you steal a coin every day, there 10 a thousand coins after a thousand days. Constant dripping wears away a stone (水滴石穿).” “Constant dripping wears away a stone.” This saying 11 us that small things done over time can make a big 12 . On the one hand, it reminds us 13 small bad things. On the other hand, it tells us to persevere (坚持不懈). Take learning a language, for example. There is no shortcut (捷径) to success. You have to persist, learning new words, reading and writing. Within a short period, you might not see progress. But 14 you stick to it for months or years, you will make breakthroughs (突破). President Xi Jinping once mentioned (提到) this saying in a 1990 speech he made in Ningde, Fujian. Believing in it, Xi led local people to work hard 15 get rid of poverty (摆脱贫困). He often used it to encourage officials to fight against poverty. 1．A．which B．whom C．who D．\ 2．A．stole B．was stole C．was stolen D．were stolen 3．A．come B．comes C．came D．to come 4．A．on B．in C．at D．for 5．A．care B．careful C．carefully D．careless 6．A．he B．his C．him D．himself 7．A．something else B．else something C．anything else D．else anything 8．A．give up B．give in C．give away D．give off 9．A．can’t B．couldn’t C．mustn’t D．needn’t 10．A．are B．have C．will be D．will have 11．A．tell B．told C．is told D．tells 12．A．different B．differently C．difference D．differences 13．A．not doing B．don’t do C．not to do D．to not do 14．A．unless B．although C．because D．if 15．A．so B．or C．and D．but 二、任务型阅读 阅读短文，根据短文内容，在短文后的空格里填入最恰当的单词（每空限填一词）。 A good book can teach you things beyond (超出) your class. It can open your eyes and clear your minds. If you want to develop (培养) a good reading habit, here are many ways. Plan your time You should give yourself at least thirty minutes for reading every day. When time is set, nothing can change it. For example, make it a habit to read after breakfast or lunch. Always carry a book Wherever you go, take a book with you. When you leave the house, make sure that you always carry a good book as well as your school things. Remember that a book always stays with you. Find a quiet place Find a place in your home where you can sit in a comfortable chair. When you read a book, no one will trouble you. There should be no televisions, computers, music or even noisy family members around you. Have a library card Have a library card, and you can read many good books in the library. Make it a weekly trip to the library. You can save a lot of money. Blog it One of the best ways to develop a good reading habit is to put it on your blog (博客). If you don’t have one, create (创造) one. It’s free. Ask your friends and family to go there to share their ideas and offer you advice. 16 to Develop a Good Reading Habit 17 your time You should read at least half an hour every day. Make it a habit to read after breakfast or lunch. Carrying a book Make sure a book always with you wherever you go. Finding a quiet place Find a place at home 18 a comfortable chair and without televisions, computers, music or noisy people around you. Having a library card It is a very cheap way to read good books in the library. Go on a trip to the library every 19 . Blogging it You don’t need to spend any 20 to create a blog. Your friends and family can share their ideas and offer you some advice. 三、选词填空 请从方框内选择适当的词并用其正确形式填空，使文章完整连贯。注意每空一词，每词仅用一次，有两词为多余项。请将答案写在答题卡对应题目的答题位置上。 if   program   twice   feeling   on   them   be   ago   give   in   same   help Amanda is a very kind girl. She 21 always ready to help people who are in trouble. Now Amanda is studying in college. At the 22 time, she volunteers to teach at Heart House in her free time. Heart House is an after-school 23 for children. It wants to help children who don’t do well 24 their study, and try to change their bad study habits. Many teachers here want these children to have great habits. Amanda goes to Heart House to teach the children 25 a week—on Monday and Saturday. She has set up a website (网站) to help these children, too. Because of Amanda’s website, every week 125 volunteers spend about four hours 26 the children at Heart House now. “We think Amanda is excellent. 27 we didn’t get the help of her website, Heart House would have difficulty finding enough volunteers,” says the program leader. “I always have a strong 28 all the things of satisfaction (满意) when I teach those kids how to study. I am proud (自豪的) of myself for making 29 learn more knowledge (知识). The happiest thing is that I can also learn a lot from them. I won’t 30 up volunteering after leaving college. I hope to go on teaching the kids who need help,” says Amanda. 原创精品资源学科网独家享有版权，侵权必究！34 学科网（北京）股份有限公司 学科网（北京）股份有限公司zxxk.com 学科网（北京）股份有限公司 $$