Unit1 The Changing World 第一课时 Section A 1a-2d 同步练 2026-2027学年人教版九年级英语上册

**基本信息** 初中英语Unit1第一课时同步练，以"基础过关-能力强化-拓展提升"分层设计，构建"词汇-句型-语篇"渐进式知识巩固路径，融合语言能力与思维品质培养。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础过关|核心词汇（rough等）、基础句型（used to等）|单句词汇拼写与汉译英，夯实新授课基础，聚焦语言能力| |能力强化|语法（现在完成时等）、词汇运用（sandy等）、情景交际|从词形转换到对话补全，结合语境考查语言应用，提升思维品质| |拓展提升|语篇语法综合、主题意义（环保）|治沙英雄事迹完形填空，渗透文化意识，实现语言能力与价值引领统一|

Unit1 The Changing World 单元同步课时练习 第一课时 Section A 1a-2d 【基础过关】 一、根据括号内所给的汉语提示完成句子。 1. You can feel the ____________(崎岖的) surface of the rock with your fingers. 2. We have to stay indoors when a ____________ (沙尘暴) comes. 3. Without enough ____________ (耕地), we will face food problems. 4. Many places are suffering from a ____________ (短缺) of energy. 5. His mistake comes from a ____________ (缺乏) of experience. 6. We hid behind a ____________ (灌木) when we played games. 7. A strong ____________ (根) makes a tree grow tall and strong. 8. We must protect the ____________ (土壤) from being polluted. 9. Thanks to your ____________ (支持), we finished the task on time. 10. We use ____________ (玉米) as food for both people and animals. 二、根据汉语意思完成句子，每空一词。 1. 她以前很害羞，现在开朗了。 She ____________ ____________ be shy, but now she is outgoing. 2. 粗心大意可能会引发严重的问题。 Carelessness may ____________ ____________ serious problems. 3. 春天这座小山可能被绿树覆盖。 The hill may ____________ ____________ ____________ green trees in spring. 4. 这些年来，科技和医疗已经改善了我们的生活。 Science and medicine ____________ ____________ ____________ ____________ over the years. 5. 因为缺少技术，人们饱受饥饿困扰。 People suffered from hunger because of a ____________ ____________ ____________. 6. 土壤污染会让贫困地区出现耕地短缺。 Soil pollution can ____________ ____________ ____________ in poor areas. 【能力强化】 三、用括号内所给的单词的适当形式填空。 1. They haven’t ____________(see) each other for ages. 2. Technology has ____________(bring) about great progress in our life. 3. I’d like to go and see how the place ____________(change) since I last visited it. 4. When I first visited the village, it ____________(take) three hours to get there by bus. 5. The local ____________(govern) has taken measures to protect the environment. 6. We should build a close ____________(relation) with classmates. 7. The Euphrates poplar(胡杨) grows well in ____________(sand) soil in northwest China. 8. When Jason was crossing the busy street, he ____________(near) got hit by a speeding electric bike. 9. Her hands were ____________(cover) with mud after she worked in the vegetable garden. 10. There are ____________(few) polluted rivers, and our living environment getting better. 四、选择填空。 ( )1. —Where is my new notebook? It was on the shelf just now. —Someone______ it in the drawer. I can see it over there. A. put B. puts C. will put D. has put ( )2. —Tengfei, will you wait for your sister? —Yes. I won’t leave ______ she finishes her homework. A. if B. until C. when D. because ( )3. —How was your trip to the mountain last weekend? —Terrible! The road was very ______, so the car drove slowly all the way. A. smooth B. rough C. empty D. calm ( )4. —Why does he take two part-time jobs after work? —He has a large family to ____. A. supply B. manage C. afford D. support ( )5. —More people choose to go to work by bike to reduce pollution. —That’s a good way to protect the ______. A. custom B. condition C. environment D. temperature ( )6. —Good partners can always ______ the best in each other. —Exactly, they push one another to become better. A. bring out B. bring about C. bring up D. bring back ( )7. The saying “No root, no fruit.” tells us ______. A. how should we grow fruit correctly B. why we should value the basics C. when we will get good results D. where we can get good fruit easily 五、根据对话内容，从方框中选择恰当的选项补全对话。 Bob: I'm amazed by how green your hometown has become! Grandpa: 1.________ Bob: Yeah! They're huge! Grandpa: 2.________Then, after one big sandstorm, we decided to do something. Bob: 3.________ Grandpa: We found a small bush. It had long roots that could hold the soil together. 4.________The government provided support too. Bob: Wasn't it difficult to plant so many bushes? Grandpa: Yes, it was. 5.________Later, we had machines to help. We have planted many bushes and trees since then. A. We began planting it in sandy areas. B. Have you seen the corn fields outside of the town yet? C. What did you do? D. At the beginning, we worked by hand. E. There used to be sandstorms all the time, and the fields were getting smaller and smaller. 六、词与短语填空。（提示：方框中有两个单词或短语是多余的） precious \ take place \ covered \ However \ Besides \ shortage \ cut down Water is important for all living things, but water 1.________ has become a serious problem now.Though about three-quarters of the Earth is 2.________ with water, most of it is salty seawater. Only fresh water can be used for daily use, farming and industry. Wasteful water habits and serious water pollution 3.________ usable fresh water. 4.________, growing population needs more water every year.To solve the problem, we should save water in daily life, stop polluting rivers and reuse wastewater. Small saving actions can help protect our 5.________ fresh water. 1. ____________ 2. ____________ 3. ____________ 4. ____________ 5. ____________ 【拓展提升】 七、综合填空。 Shi Guangyin is a great national hero who 1 (fight) desertification(沙漠化) for more than forty years. He was born in Dingbian County, Shaanxi Province. When he was young, his hometown 2 (cover) with large areas of desert. Terrible sandstorms happened very often. They destroyed farmland, damaged houses and made local people live 3 poor and hard life. Seeing this, Shi Guangyin made a 4 (decide) to stop the sand and turn the desert green.In 1984, Shi Guangyin moved his whole family to the 5 (sand) area and led local villagers to plant trees day after day. The conditions were so difficult 6 they had to face strong wind, dry weather and hot sunshine.However, they never gave up. After years of hard work, they have planted over 53 million trees. Large areas of moving sand have been fixed. The endless desert has turned into green woods, 7 forms a long “green Great Wall”. The local environment has improved 8 (great). Sandstorms are fewer, and the land can grow crops again. People’s living conditions have become much better. Shi Guangyin has won many great honors, 9 (include) the July 1 Medal. He devotes his whole life to protecting the environment. His strong will and 10 (self) spirit set a good example for all teenagers. 1. ____________ 2. ____________ 3. ____________ 4. ____________ 5. ____________ 6. ____________ 7. ____________ 8. ____________ 9. ____________ 10. ____________ 参考答案 【基础过关】 一、根据括号内所给的汉语提示完成句子。 1. rough 2. sandstorm 3. farmland 4. shortage 5. lack 6. bush 7. root 8. soil 9. support 10. corn 二、根据汉语意思完成句子，每空一词。 1. used to 2. bring about 3. be covered with 4. have improved our lives 5. lack of technology 6. cause farmland shortage 【能力强化】 三、用括号内所给的单词的适当形式填空。 1. seen 2. brought 3. has changed 4. took 5. government 6. relationship 7. sandy 8. nearly 9. covered 10. fewer 解析: 1. 现在完成时结构：have/has + 过去分词，see的过去分词是seen。haven't后接过去分词。 2. 现在完成时has + 过去分词，bring过去分词为brought。 3. since引导时间状语，主句用现在完成时；the place是单数，助动词用has，change变has changed。 4.when引导过去时间状语从句（first visited），主句用一般过去时，take过去式took。 5. local形容词后接名词，govern动词变为government名词（政府），谓语has为单数，主语用单数。 6. close形容词修饰名词，relation动词词根变为relationship（关系），a后用单数名词。 7. 修饰名词soil需要形容词，sand名词变为sandy形容词（沙质的）。 8. 修饰动词got hit用副词，near形容词变为nearly副词（险些，几乎）。 9. 固定搭配be covered with（被……覆盖），被动语态，填covered。 10. 后半句环境变好，说明污染河流变少，暗含和从前对比，few比较级fewer（更少的）。 四、选择填空。 1.D 2.B 3.B 4.D 5.C 6.A 7.B 解析： 1. 前文笔记本刚才在架子上，现在在抽屉，强调过去动作对现在造成结果（位置变化），用现在完成时；someone作主语，选has put。put（原形/过去式）不能体现现在的结果。 2. 固定结构 not…until…：直到……才……。句意：我要等她写完作业才离开。if如果；when当…时；because因为，均不符合搭配。 3. rough（崎岖不平的）；smooth平坦的；empty空的；calm平静。路崎岖所以车子全程开得慢，选rough。 4. support one’s family 养家糊口（固定搭配）；supply供给；manage设法；afford负担得起，只有support贴合“养活大家庭”。 5. 骑自行车减少污染，是保护环境；custom风俗；condition条件；temperature气温。 6. bring out the best in sb 激发某人的潜能（固定短语）；bring about导致；bring up抚养；bring back拿回。 7. 谚语“No root, no fruit 无根则无果”寓意要重视根基、基础；宾语从句用陈述语序，A语序错误，C/D句意不符。 五、根据对话内容，从方框中选择恰当的选项补全对话。 1. B 2. E 3. C 4. A 5. D 解析： 1. 答句 Yeah! They're huge!（是啊，它们大片大片的），they 指代选项里的 corn fields（玉米田），问句询问是否看见城外玉米田，前后呼应。 2. 后文 Then, after one big sandstorm, we decided to do something.（一场大沙尘暴后我们决定行动），本句回忆过去：从前常年沙尘暴、耕地不断变少，铺垫治沙原因。 3. 上文说决定采取行动，下文回答 We found a small bush…（我们找到一种灌木丛），因此问句：你们做了什么？ 4. 前文找到固土的灌木，顺接：我们开始在沙地栽种它，后文再补充政府也提供帮扶。 5. 问句问种树辛苦吗，答Yes；后文 Later, we had machines to help.（后来有机器帮忙），对应：起初我们全靠手工劳作。 六、词与短语填空。（提示：方框中有两个单词或短语是多余的） 1. shortage 2. covered 3. cut down 4. Besides 5. precious 解析: 1.  water shortage  固定搭配：水资源短缺，在句中作主语。句意：水对所有生物至关重要，但如今水资源短缺已成严峻难题。 2. 固定短语 be covered with 被……覆盖。句意：地球约四分之三的面积被水覆盖。 3. 含义：削减、减少。主语是复数（浪费习惯+水污染），谓语用原形。句意：浪费水的陋习与严重水污染不断缩减可用淡水资源。 4. 副词，表递进：除此之外、而且。前文讲淡水变少，后文补充人口增长进一步增加用水需求； However 表转折，逻辑不符。 5. 形容词，珍贵的，修饰名词 fresh water 。 precious fresh water 珍贵的淡水。 【拓展提升】 七、综合填空。 1. has fought 2. was covered 3. a 4. decision 5. sandy 6. that 7. which 8. greatly 9. including 10. selfless 解析: 1. 时间标志for more than forty years（四十多年）是现在完成时典型提示；先行词who指代单数名词hero，现在完成时结构：has+动词过去分词，fight过去分词为fought，故填has fought。 2. 固定搭配be covered with，含义“被……覆盖”；when he was young表明时态为一般过去时，主语hometown是单数，被动语态用was covered。 3.固定短语live a ... life，意为“过……样的生活”，poor and hard life是单数名词短语，前面加不定冠词a。 4. 空格前有不定冠词a，后面需要填名词；decide是动词，名词形式为decision，make a decision是固定短语“做决定”。 5. 空格修饰名词area，需要形容词；sand为名词，形容词形式sandy，表示“沙质的、多沙的”，sandy area 沙地。 6. 固定句式so…that…，译为“如此……以至于……”，句意：条件如此艰苦，以至于他们不得不面对狂风、干旱与烈日。 7. 逗号引导非限制性定语从句，指代前面整句话（荒漠变成绿地这件事），非限制性定语从句指代整件事只用关系代词which。 8. 空格修饰动词improved，修饰动词必须使用副词；great是形容词，副词形式greatly，表“极大地”。 9. 此处需要介词，后面直接接举例的荣誉名称；include动词，介词形式including，意为“包括”。 10. 空格修饰名词spirit，需要形容词；self名词，selfless形容词表示“无私的”，selfless spirit 无私的精神。 学科网（北京）股份有限公司 $