Unit 8 Our Blue Planet 核心单词,词性转换,短语,语法,句型精练-2025-2026学年七年级英语下册单元练习（仁爱科普版）

班级 姓名 学号 分数 Unit 8 Our Blue Planet 单元重点单词变形短语语法句型精练 （时间：60分钟，满分：100分） 1、 用括号内所给单词的适当形式填空(本大题共20小题，每小题1分，共20分) 1． (thousand) of Tibetan antelopes travel through Hoh Xil every year. 【答案】Thousands 【详解】句意：每年有成千上万只藏羚羊穿越可可西里。hundred/thousand/million等词与of连用表示概数时，词尾要加s，表示“成百/千/百万的……”。根据“…of Tibetan antelopes”可知，此处表示成千上万只藏羚羊。thousands of意为“成千上万的”，句首单词首字母需大写。故填Thousands。 2．Let’s (go) hiking this Sunday. The weather will be nice. 【答案】go 【详解】句意：我们这周日去远足吧，天气会很好。根据“Let’s”的固定用法，“let’s+动词原形”表示“让我们做某事”，因此此处需填动词原形go。故填go。 3．I think these (story) are very interesting. 【答案】stories 【详解】句意：我认为这些故事非常有趣。story“故事”，可数名词，位于“these”后，填复数的stories，作从句主语。故填stories。 4．When water vapor (get) cold, it becomes water again. 【答案】gets 【详解】句意：当水蒸气变冷时，它又变成水。根据后半句中“becomes”可知，时态为一般现在时，结合所给词可知，get“变得”，动词短语，且该句主语是water vapor，所以此处应该填入其第三人称单数形式gets，作谓语。故填gets。 5．It’s important for us (understand) the importance of water. 【答案】to understand 【详解】句意：对我们来说，理解水的重要性很重要。根据“It’s important for us...”可知，此处为It’s+adj.+for sb. to do sth.句型，表示“对某人来说做某事怎么样”，所以空处用动词不定式。故填to understand。 6．There (be) a lot of pollution in the river. 【答案】is 【详解】句意：这条河里有很多污染。根据“There...a lot of pollution in the river.”可知，句子描述现在的情况，用一般现在时。空后pollution为不可数名词，所以be动词用is。故填is。 7．We need (drink) water every day. 【答案】to drink 【详解】句意：我们每天需要喝水。need to do sth.表示“需要做某事”，此处用动词不定式to drink作宾语，故填to drink。 8．Water is so important and (value) for people living in the desert. 【答案】valuable 【详解】句意：对于生活在沙漠地区的人们来说，水是如此重要且珍贵。空格处与important构成并列表语，应填形容词；value的形容词是valuable意为“珍贵的，宝贵的”，故填valuable。 9．I would like to share some good (habit) of learning English. 【答案】habits 【详解】句意：我想分享一些学习英语的好习惯。habit“习惯”，可数名词，some修饰用复数形式。故填habits。 10．They all feel very (shock) to know the bad news. 【答案】shocked 【详解】句意：得知这个坏消息，他们都感到非常震惊。根据“They all feel very...”以及所给单词“shock”可知，此处需要用形容词作表语，本句主语是“They”，指人，因此用“shocked”。故填shocked。 11．If we don’t take action, the (ocean) will be polluted more seriously. 【答案】oceans 【详解】句意：如果我们不采取行动，海洋将受到更严重的污染。ocean“海洋”，此处泛指多片海洋，用名词复数形式。故填oceans。 12．People in the desert take a quick shower (one) a month. 【答案】once 【详解】句意：沙漠中的人们每月快速洗一次澡。根据题意和提示词可知，此处应用one的副词形式once，once a month“一个月一次”，表示频率。故填once。 13．Our country is (develop) very fast. 【答案】developing 【详解】句意：我们的国家发展得很快。develop“发展”，根据is可知，时态为现在进行时，结构为be doing，develop的现在分词为developing。故填developing。 14．Everyone should know how (protect) our planet. 【答案】to protect 【详解】句意：每个人都应该知道如何保护我们的星球。根据分析句子“Everyone should know how…our planet.”，结合所给词可知，此处考查：疑问词+不定式，所以应该填入to protect，作宾语。故填to protect。 15．Hey, that’s the bell. Let’s go to the classroom (quick). 【答案】quickly 【详解】句意：嘿，铃声响了。我们快点去教室吧。根据上文“Hey, that’s the bell.”可知，铃声响了，所以此处是指要快速进教室，应用quick的副词形式quickly“快速地”，在句中作状语，修饰动词“go”。故填quickly。 16． (close) the windows before you leave the classroom. 【答案】Close 【详解】句意：在你离开教室前关上窗户。“Close”在句中作谓语，祈使句通常以动词原形开头，用来表达命令、请求等语气，此处是要求对方做“关窗户”这个动作，所以用动词原形“Close”。故填Close。 17．The river (flow) quickly after the heavy rain. Be careful near it. 【答案】flows 【详解】句意：大雨过后，河水流速很快。靠近时需小心。本句时态是一般现在时，主语“the river”是第三人称单数，谓语动词用第三人称单数。故填flows。 18．The (leaf) of this kind of tree turn red in autumn. It’s very beautiful. 【答案】leaves 【详解】句意：这种树的叶子在秋天变红。非常漂亮。结合汉语提示及谓语动词turn可知，此处应填leaf的复数形式leaves。故填leaves。 19．We need to make a (decide) on which book to choose for the report. 【答案】decision 【详解】句意：我们需要决定为报告选哪本书。“make a + 名词”是固定结构，“decide”是动词，其名词形式是“decision”，“make a decision”表示“做决定”。故填decision。 20．There are many (danger) things in the old house. Keep away from it. 【答案】dangerous 【详解】句意：老房子里有很多危险的东西。离它远点。“things”是名词，需用形容词修饰；“danger”是名词，其形容词形式为“dangerous”。故填dangerous。 二、根据汉语提示完成单词(本大题共10小题，每小题1分，共10分) 21．Please (记录) the words in your notebook. 【答案】record 【详解】句意：请把这些单词记录在你的笔记本里。根据汉语提示“记录”可知，record“记录”，动词；祈使句以动词原形开头。故填record。 22．When it is ready, (覆盖) the turkey with gravy. 【答案】cover 【详解】句意：当它准备好了，用肉汁覆盖火鸡。根据汉语提示可知，cover“覆盖”，动词，此处是祈使句，使用动词原形。故填cover。 23．Look at the sign! No (进入). 【答案】entry 【详解】句意：看那个标识！禁止进入。entry“进入”，No entry“禁止进入”，是固定搭配。故填entry。 24．Please (提高) your voice. I can’t hear you. 【答案】raise 【详解】句意：请提高你的声音。我听不见你。raise one’s voice“提高某人的声音”，本句是祈使句，以动词原形开头。故填raise。 25．Lucy likes the number (九十). 【答案】ninety 【详解】句意：露西喜欢数字九十。ninety“九十”，基数词。故填ninety。 26．Don’t (移动) if you see snakes. 【答案】move 【详解】句意：如果你看见蛇，那就不要动。move“移动”，don’t后跟动词原形，故填move。 27．Yangzhou, a city with rich cultures, is in the part of Jiangsu Province. (东面) 【答案】eastern 【详解】句意：扬州，一座文化底蕴深厚的城市，位于江苏省东部。根据汉语提示可知，eastern“东面的”，形容词，作定语，修饰名词part。故填eastern。 28．It’s good to drink (足够的) water every day. 【答案】enough 【详解】句意：每天喝足够的水是有好处的。“足够的”enough，修饰water。故填enough。 29．My sister likes to (收集) stones of different shapes in her free time. 【答案】collect 【详解】句意：我妹妹喜欢在空闲时间收集不同形状的石头。空格前有to，说明需要动词原形（不定式结构to do），中文提示“收集”对应的英文是collect 。故填collect。 30．Be polite and (对待) one another with respect. 【答案】treat 【详解】句意：要礼貌，互相尊重。对待：treat。根据“Be polite”可知句子是祈使句，and连接两个动词，故此处动词用原形。故填treat。 三、完成句子(本大题共10小题，每小题3分，共30分) 31．这些树能存活好几千年。 These trees can live for years. 【答案】 thousands of 【详解】根据中英文对照可知，缺少的信息为“几千”，thousands of“几千”，固定搭配。故填thousands；of。 32．再见，彼得。 , Peter. 【答案】 Bye for now 【详解】根据中英文对照，此处缺少“再见”的完整表达。“Bye for now”是英语口语中常用的告别语，意为“再见，回头见”，符合语境。故填Bye；for；now。 33．请稍等，我现在正在打扫我的房间。 Please , I’m cleaning my room now. 【答案】 wait a moment 【详解】根据中英文对照可知，画线处要填入“稍等”的英文。wait a moment意为“稍等”，由语境可知，此处是祈使句，所以动词wait用原形。故填wait；a；moment。 34．食物给我们提供能量，让我们足够强壮。 Food gives us and makes us strong . 【答案】 energy enough 【详解】根据中英文对照可知，第一处缺少“能量”，英文表达为energy，是不可数名词，此处用原形即可；第二处缺少“足够（地）”，“足够”修饰形容词strong时需后置，英文表达为enough，故填energy；enough。 35．好习惯能引领我们走向成功。 can lead us to success. 【答案】Good habits 【详解】中英对照可知，空处意为“好习惯”，good“好的”，habit“习惯”，符合语境，habit是可数名词，用复数形式表示泛指的好习惯，故填Good habits。 36．旅行期间，Dora参加了一个关于如何保护树木的讲座。 Dora attended a lecture about trees during the trip. 【答案】 how to protect 【详解】根据中英文对照可知，空格处缺“如何保护”，句子中“about”是介词，后接“疑问词 + 不定式”结构作宾语，故“如何保护”how to protect。故填how；to；protect。 37．请把这个瓶子装满油。 Please the bottle oil. 【答案】 fill with 【详解】fill…with表示“使……充满”，此句是祈使句的肯定形式，第一空填动词原形，故填fill；with。 38．在写作业前要考虑一下今天课堂上所学的内容。 Before doing your homework, always what you learned in class today. 【答案】think about 【详解】根据中英文对照可知，英文句子缺少“考虑”，其英文表达是think about，动词短语，此处是祈使句的肯定形式，所以动词think用原形。故填think about。 39．别挂断电话，我很快就回来。 , I’ll come back soon. 【答案】 Hold on 【详解】hold on意为“别挂断电话”，固定表达，首字母大写。故填Hold；on。 40．看！现在太阳正穿过云层，光芒四射。 Look! The sun is brightly the clouds now. 【答案】 shining through 【详解】根据中英文对照可知，此处缺少“照射”和“穿过”。照射：shine，动词，由“now”可知，应用现在进行时，谓语动词用现在分词形式；穿过：through，介词。故填shining；through。 四、短文填空(本大题共20小题，每小题2分，共40分) 阅读下面短文，在空白处填入一个适当的词或括号内单词的适当形式。 The Dongting Lake is famous as the “800—Li Dongting Lake”. It is in the north of Hunan. It 41 (cover) about 2,800 square kilometers. It is one of the largest freshwater 42 (lake) in China. It is very beautiful. Every year, thousands of people all over the world come to visit it. 43 some factories are putting dirty water into the lake. People are also 44 (throw) rubbish into it. Because of these things, the Dongting Lake 45 (have) some problems. To protect the lake, we must stop 46 (they) from doing such things. We should let fish live in the clean water 47 (happy). Also we should plant lots 48 beautiful flowers and tall trees along the lake. Then the lake will be beautiful and become 49 wonderful place. Then, we can see blue sky, 50 (color) flowers and tall trees. Finally, everyone can enjoy the beautiful lake. So, we should take actions to protect the lake. Come on! 【答案】 41．covers 42．lakes 43．But 44．throwing 45．has 46．them 47．happily 48．of 49．a 50．colorful 【导语】本文为说明文，主要讲述洞庭湖的基本情况、面临的污染问题以及保护它的措施 。 41．句意：它占地面积约2800平方公里 。主语“It”是第三人称单数，一般现在时中，谓语动词用第三人称单数形式，“cover”的第三人称单数是“covers”，故填covers。 42．句意：它是中国最大的淡水湖之一 。“one of + 可数名词复数”表示“……之一”，“lake”的复数是“lakes”，故填lakes。 43．句意：但一些工厂正在把污水排入湖中 。前文说人们来参观，此处说工厂排污，是转折关系，用“But”，故填But。 44．句意：人们也在往里面扔垃圾 。“are + 现在分词”构成现在进行时，“throw”的现在分词是“throwing”，故填throwing。 45．句意：因为这些情况，洞庭湖有一些问题 。主语“the Dongting Lake”是单数，一般现在时谓语动词用第三人称单数形式，“have”的第三人称单数是“has”，故填has。 46．句意：为了保护湖泊，我们必须阻止他们做这样的事 。“stop”是动词，后接人称代词宾格，“they”的宾格是“them”，故填them。 47．句意：我们应该让鱼在干净的水里快乐地生活 。修饰动词“live”用副词，“happy”的副词是“happily”，故填happily。 48．句意：我们也应该在湖边种很多美丽的花和高大的树 。“lots of”是固定短语，意为“许多”，故填of。 49．句意：然后湖会变得美丽，成为一个美妙的地方。此处place为单数可数名词且首次提及，需用不定冠词a。故填a。 50．句意：然后，我们可以看到蓝天、五颜六色的花和高大的树 。修饰名词“flowers”用形容词，“color”的形容词是“colorful”，故填colorful。 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。 I was born in Pittsburgh (匹兹堡市), USA．It is the second 51 (big) city in Pennsylvania. Pittsburgh lies on the banks of three rivers, which are crossed by over 400 bridges, 52 it is sometimes called “The City of Bridges”. Fifty years ago, Pittsburgh was a busy industrial (工业) town. It had many 53 (factory). However, in the 1970s and 80s they closed. The streets 54 (become) empty and dangerous. Today, a lot of these streets are full of life again, filled 55 shops, restaurants and theaters. All around Pittsburgh, there are many hills. From there, you can 56 (easy) enjoy great views (风景) of the city. There are views that many artists 57 (paint) since over one hundred years ago. 58 city is now named one of the “World’s Most Liveable Cities”. I moved away ten years ago, but I often return 59 (visit). Pittsburgh is full of people who have lived through good times and bad, and I miss their friendly character. They make 60 (I) proud to call Pittsburgh my hometown. 【答案】 51．biggest 52．so 53．factories 54．became 55．with 56．easily 57．have painted 58．The 59．to visit 60．me 【导语】这是一篇介绍作者家乡匹兹堡的说明文，文章描述了匹兹堡的地理位置、历史变迁、自然风光以及作者对家乡的情感。 51．句意：它是宾夕法尼亚州的第二大城市。根据“the second”可知，此处应用形容词big的最高级形式biggest，表示“最大的”，与序数词连用表示“第几大”。故填biggest。 52．句意：匹兹堡位于三条河流的岸边，这些河流被400多座桥梁横跨，因此它有时被称为“桥城”。根据前后句意可知，此处表示因果关系，前因后果，应用连词so连接。故填so。 53．句意：它有很多工厂。根据“many”可知，此处应用可数名词factory的复数形式factories，表示“工厂”。故填factories。 54．句意：街道变得空荡荡且危险。根据前文“However, in the 1970s and 80s they closed.”可知，此处描述的是过去发生的事情，应用一般过去时，动词become的过去式为became。故填became。 55．句意：今天，这些街道中的很多又充满了生机，布满了商店、餐馆和剧院。根据“filled ... shops, restaurants and theaters”可知，此处考查固定短语be filled with，表示“充满”，故填with。 56．句意：从那里，你可以很容易地欣赏到城市的美景。根据“enjoy”可知，此处应用副词easily修饰动词enjoy，表示“容易地”。故填easily。 57．句意：自一百多年前以来，就有许多艺术家描绘过这些风景。根据“since over one hundred years ago”可知，此处应用现在完成时，其结构为have/has done，主语“many artists”是复数，助动词用have，paint的过去分词是painted。故填have painted。 58．句意：这座城市现在被评为“世界上最宜居城市”之一。根据前文多次提及“Pittsburgh”以及后文“call Pittsburgh my hometown”可知，此处特指匹兹堡这座城市，应用定冠词the修饰，句首首字母大写。故填The。 59．句意：我十年前搬走了，但我经常回来参观。根据“return”可知，此处考查固定短语return to do sth.，表示“回来做某事”，应用动词visit的不定式形式to visit作宾语。故填to visit。 60．句意：他们让我为称匹兹堡为我的家乡而感到自豪。根据“make”可知，此处考查固定短语make sb. do sth.，表示“让某人做某事”，应用代词I的宾格形式me作宾语。故填me。 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 8 Our Blue Planet 单元重点单词变形短语语法句型精练 （时间：60分钟，满分：100分） 1、 用括号内所给单词的适当形式填空(本大题共20小题，每小题1分，共20分) 1． (thousand) of Tibetan antelopes travel through Hoh Xil every year. 2．Let’s (go) hiking this Sunday. The weather will be nice. 3．I think these (story) are very interesting. 4．When water vapor (get) cold, it becomes water again. 5．It’s important for us (understand) the importance of water. 6．There (be) a lot of pollution in the river. 7．We need (drink) water every day. 8．Water is so important and (value) for people living in the desert. 9．I would like to share some good (habit) of learning English. 10．They all feel very (shock) to know the bad news. 11．If we don’t take action, the (ocean) will be polluted more seriously. 12．People in the desert take a quick shower (one) a month. 13．Our country is (develop) very fast. 14．Everyone should know how (protect) our planet. 15．Hey, that’s the bell. Let’s go to the classroom (quick). 16． (close) the windows before you leave the classroom. 17．The river (flow) quickly after the heavy rain. Be careful near it. 18．The (leaf) of this kind of tree turn red in autumn. It’s very beautiful. 19．We need to make a (decide) on which book to choose for the report. 20．There are many (danger) things in the old house. Keep away from it. 二、根据汉语提示完成单词(本大题共10小题，每小题1分，共10分) 21．Please (记录) the words in your notebook. 22．When it is ready, (覆盖) the turkey with gravy. 23．Look at the sign! No (进入). 24．Please (提高) your voice. I can’t hear you. 25．Lucy likes the number (九十). 26．Don’t (移动) if you see snakes. 27．Yangzhou, a city with rich cultures, is in the part of Jiangsu Province. (东面) 28．It’s good to drink (足够的) water every day. 29．My sister likes to (收集) stones of different shapes in her free time. 30．Be polite and (对待) one another with respect. 三、完成句子(本大题共10小题，每小题3分，共30分) 31．这些树能存活好几千年。 These trees can live for years. 32．再见，彼得。 , Peter. 33．请稍等，我现在正在打扫我的房间。 Please , I’m cleaning my room now. 34．食物给我们提供能量，让我们足够强壮。 Food gives us and makes us strong . 35．好习惯能引领我们走向成功。 can lead us to success. 36．旅行期间，Dora参加了一个关于如何保护树木的讲座。 Dora attended a lecture about trees during the trip. 37．请把这个瓶子装满油。 Please the bottle oil. 38．在写作业前要考虑一下今天课堂上所学的内容。 Before doing your homework, always what you learned in class today. 39．别挂断电话，我很快就回来。 , I’ll come back soon. 40．看！现在太阳正穿过云层，光芒四射。 Look! The sun is brightly the clouds now. 四、短文填空(本大题共20小题，每小题2分，共40分) 阅读下面短文，在空白处填入一个适当的词或括号内单词的适当形式。 The Dongting Lake is famous as the “800—Li Dongting Lake”. It is in the north of Hunan. It 41 (cover) about 2,800 square kilometers. It is one of the largest freshwater 42 (lake) in China. It is very beautiful. Every year, thousands of people all over the world come to visit it. 43 some factories are putting dirty water into the lake. People are also 44 (throw) rubbish into it. Because of these things, the Dongting Lake 45 (have) some problems. To protect the lake, we must stop 46 (they) from doing such things. We should let fish live in the clean water 47 (happy). Also we should plant lots 48 beautiful flowers and tall trees along the lake. Then the lake will be beautiful and become 49 wonderful place. Then, we can see blue sky, 50 (color) flowers and tall trees. Finally, everyone can enjoy the beautiful lake. So, we should take actions to protect the lake. Come on! 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。 I was born in Pittsburgh (匹兹堡市), USA．It is the second 51 (big) city in Pennsylvania. Pittsburgh lies on the banks of three rivers, which are crossed by over 400 bridges, 52 it is sometimes called “The City of Bridges”. Fifty years ago, Pittsburgh was a busy industrial (工业) town. It had many 53 (factory). However, in the 1970s and 80s they closed. The streets 54 (become) empty and dangerous. Today, a lot of these streets are full of life again, filled 55 shops, restaurants and theaters. All around Pittsburgh, there are many hills. From there, you can 56 (easy) enjoy great views (风景) of the city. There are views that many artists 57 (paint) since over one hundred years ago. 58 city is now named one of the “World’s Most Liveable Cities”. I moved away ten years ago, but I often return 59 (visit). Pittsburgh is full of people who have lived through good times and bad, and I miss their friendly character. They make 60 (I) proud to call Pittsburgh my hometown. 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 $