Unit 4 Section A 同步练习 2026-2027学年鲁教版（五四学制）英语八年级上册

**基本信息** 初中英语Unit 4 Section A同步练，分层设计从基础词汇到语篇综合，通过梯度题型巩固语言能力，渗透自然文化意识，适配新授课知识内化需求。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础层|核心词汇（depth, development等）|首字母提示/汉译英夯实词汇基础，强化拼写与词义记忆| |进阶层|语法应用（比较级/最高级、非谓语等）|词形填空/补全对话提升语法运用，衔接句型表达| |综合层|语篇理解（对话/短文逻辑）|语法填空/完形填空整合语言知识，培养语篇思维与文化感知|

Unit 4 The Wonders of Nature 答案 一、根据汉语或首字母提示填写单词 1. desert 解析：Sahara撒哈拉沙漠，desert n.沙漠。句意：撒哈拉是世界上最大的沙漠。 2. depth 解析：the depth of ……的深度，名词。句意：这个湖的深度是多少？ 3. below 解析：below sea level 在海平面以下，固定搭配。死海海拔在海平面之下416米。 4. depth 解析：名词，深度。the depth of the lake 湖的深度。 5. unusual 解析：形容词，不寻常的，修饰名词plant。 6. bottom 解析：bottom n.底部；the bottom of the river 河底。 7. development 解析：with the development of… 随着……的发展，固定短语。 8. costs 解析：at all costs 不惜一切代价，固定短语，用复数。 9. wonder 解析：wonder v.想知道。句意：我想知道放学后妈妈会不会给我买冰淇淋。 10. surface 解析：surface n.表面；the surface of the lake湖面。 11. development 解析：with the development of…随着……的发展。 12. level 解析：math level数学水平。 13. wonder 解析：It’s a wonder that… ……真是个奇迹。 14. surface 解析：the surface of the desk课桌表面。 15. development 解析：the fast development of robots机器人的飞速发展。 16. levels 解析：different后接可数名词复数，different levels不同水平。 二、用所给词的适当形式填空 1. the deepest 解析：on earth（在地球上）表示范围，要用形容词最高级。句意：马里亚纳海沟是地球上最深的地方。 2. larger 解析：than是比较级标志，large比较级larger。 3. longer 解析：than比较级标志，long的比较级longer。 4. second 解析：the +序数词+最高级，表示“第几最……”，the second longest 第二长。 5. diving 解析：be afraid of doing sth. 害怕做某事，of是介词，后接动名词。 6. to reach 解析：manage to do sth. 设法做成某事，固定搭配。 7. longer 解析：than比较级标志，long比较级longer。 8. development 解析：the后接名词，develop动词→development名词“发展”。 三、补全对话 答案：1.B 2.C 3.A 4.D 5.F 解析： 1. B 根据下句答语“It's the Yellow River!”，问句询问去了哪里，选B“你去哪里了？” 2. C 上句问“它是中国最长的河吗？”，答“No”，接着说明长江才是最长，选C。 3. A 答句回答长度“大约5464千米”，问句询问长度，选A“它多长？” 4. D 后一句“It's the highest mountain in the world.”介绍世界最高峰，D选项“珠穆朗玛峰非常有名”对应。 5. F 答句“We should learn to love and protect nature.”讲我们从自然中学会的道理，选F“我们能从这些自然奇观中学到什么？” 四、根据汉语完成句子，每空一词 1. depth of 解析：the depth of ……的深度。 句意：Do you know the depth of this river? 2. unusual; deep sea 解析：unusual不寻常的；the deep sea深海。 句意：This unusual animal lives in the deep sea. 3. at all costs 解析：at all costs 不惜一切代价。 句意：We should protect nature at all costs. 4. development of 解析：with the development of… 随着……的发展。 句意：With the development of technology, we can explore the deep sea. 5. the second longest 解析：the +序数词+最高级，第二长。 句意：The Yellow River is the second longest river in China. 五、教材语法填空 1. second 解析：the second longest 第二长，序数词。 2. a 解析：with a length of… 长度为……，固定搭配。 3. is called 解析：被动语态，“被叫做黄河”，一般现在时被动：be+过去分词；it为单数，be动词用is。 4. as 解析：be known as 作为……而出名。“被称为母亲河”。 5. which 解析：非限制性定语从句，指代前面整句话（长江长6300千米这件事），用which。 6. travelling 解析：现在分词作伴随状语。（长江）奔流到远方。 7. longest 解析：the+形容词最高级，世界上最长的河。 8. importance 解析：be of great importance=be very important，great后接名词。important形容词→importance名词。 9. helped 解析：尼罗河与黄河助力古代文明发展，描述过去，用一般过去时helped。 10. be protected 解析：should情态动词后接动词原形；rivers和protect是被动关系“河流被保护”，should be done。 六、完形填空 答案：1.B 2.A 3.B 4.C 5.A 6.B 7.C 8.A 9.B 10.C 解析： 1. B natural wonders自然奇观，文章主题。problem问题；rule规则；story故事。 2. A 尼罗河是世界最长河流。longest最长；shortest最短；widest最宽；smallest最小。 3. B Egyptian civilization古埃及文明。music音乐；food食物；building建筑。 4. C 因果关系：它携带大量黄土，所以得到这个名字。if如果；but但是；so所以；though尽管。 5. A 我们必须一直保护两条大河。visit参观；draw画画；forget忘记。 6. B know little about… 对……了解很少。little表否定，指代抽象知识。much/many许多；few修饰可数名词。 7. C do research 做研究。sports运动；lesson课程；hobby爱好。 8. A dive into the trench潜入海沟，过去式dived。climb爬；walk走；run跑。 9. B make their own light 自己发光。water水；wind风；sand沙子。 10. C stop polluting the ocean停止污染海洋。stop doing sth停止做某事。clean打扫；save拯救；watch观看。 学科网（北京）股份有限公司 $ Unit 4 Section A 同步提升练习题 1、 根据汉语或首字母提示填写单词 1. The Sahara is the biggest d____________ in the world. 2. What's the d____________ of the lake? 3. The Dead Sea is 416 meters b____________ sea level. 4. What's the ____________ (深度) of this lake? 5. This is an ____________ (不寻常的) plant in the sea. 6. The ____________ (底部) of the river is very clean. 7. With the ____________ (发展) of China, we protect nature better. 8. We must keep our rivers clean at all c____________. 9. I w____________ if my mom will buy me ice cream after school. 10. Look! The ____________（表面）of the lake is like a big mirror. 11. The ____________（发展）of online shopping makes our life easier. 12. My math____________ （水平）is not good. I need more practice. 13. It’s a w______ that my little sister can count to 100 at the age of three. 14. Don’t draw on the ____________（表面）of the desk. It’s not polite. 15. With the fast ____________（发展）of robots, they can help us do many jobs. 16. This English class is for students at different____________ （水平） 2、 用所给词的适当形式填空 1. Mariana Trench is ____________ (deep) place on earth. 2. The Sahara is ____________ (large) than any other desert. 3. This river is ____________ (long) than that one. 4. The Yellow River is the ____________ (two) longest river in China. 5. Don't be afraid of ____________ (dive) in the deep sea. 6. We managed ____________ (reach) the top of the mountain. 7. The Yangtze River is ____________ (long) than the Yellow River. 8. China helps the ____________ (develop) of many countries. 3、 补全对话 阅读下面对话，从对话后的选项中，选出可以填入空白处的最佳选项。选项中有一项为多余选项。 A: Hi, Wang Lin! I hear you went on a trip during the weekend. B: Yes! I went to see a great natural wonder. A: Really? 1____________ B: It's the Yellow River! It's our mother river. A: Wow! Is it the longest river in China? B: No. 2 ____________It's the second longest. A: 3____________ B: It's about 5,464 kilometers long. A: That's amazing! Do you know any other natural wonders? B: Sure! 4____________ It's the highest mountain in the world. A: That's cool! 5____________ B: We should learn to love and protect nature. A. How long is it? B. Where did you go? C. The Yangtze River is the longest. D. Mount Qomolangma is very famous. E. Why do you like natural wonders so much? F. What can we learn from these natural wonders? 4、 根据汉语完成句子，每空一词 1. 你知道这条河的深度吗？ Do you know the ____________ ____________ this river? 2. 这种不寻常的动物生活在深海。 This ____________ animal lives in the ____________ ____________. 3. 我们应该不惜一切代价保护自然。 We should protect nature ____________ ____________ ____________. 4. 随着科技的发展，我们能探索深海了。 With the ____________ ____________ technology, we can explore the deep sea. 5. 黄河是中国第二长河。 The Yellow River is ____________ ____________ ____________ river in China. 5、 教材语法填空 阅读下面短文，在空白处填入一个适当的单词或括号内单词的正确形式。 The Yellow River is China's 1.____________ (two) longest river, with 2.____________ length of 5,464 kilometres. It 3.____________ (call) the Yellow River because some parts of the river carry brown and yellow earth. In China, it is known 4.____________ the "mother river". The Yangtze River is about 6,300 kilometres long, 5.____________ is the longest river in China, 6.____________ (travel) the farthest. The Nile, the 7.____________ (long) river in the world, is 6,671 kilometres long. It is of great 8.____________ (important) in Egypt's history. Both the Nile and the Yellow River 9.____________ (help) ancient civilizations to develop, and they are still very important today. All rivers should 10.____________ (protect) at all costs. 6、 完形填空 The world is full of amazing natural 1. Many rivers and deep seas are great wonders. Let's learn some facts about them. First, let's talk about rivers. The Nile is the 2 river in the world. It's about 6,671 kilometres long. It helped old Egyptian 3 grow up thousands of years ago. In China, we have two mother rivers—the Yangtze and the Yellow River. The Yangtze is about 6,300 km, and it's the longest river in our country. The Yellow River is 5,464 km long. It carries lots of yellow earth, 4 it gets its name. Both rivers are very important to Chinese people, so we must 5 them all the time. Now let's go to the deep sea. People still know 6 about the deep sea, so scientists keep doing lots of 7. In 2020, China's submersible Fendouzhe 8 into the Mariana Trench, the deepest place on Earth. It's about 11,000 metres deep. Some sea animals there are blind, but they can "see". Others can make their own 9 to light up the dark water. Sadly, people found rubbish even at such great depths. We should stop 10 the ocean and protect all sea life. 1. problems B. wonders C. rules D. stories 2. longest B. shortest C. widest D. smallest 3. music B. civilization C. food D. buildings 4. if B. but C. so D. though 5. protect B. visit C. draw D. forget 6. much B. little C. many D. few 7. sports B. lessons C. research D. hobbies 8. dived B. climbed C. walked D. ran 9. water B. light C. wind D. sand 10. cleaning B. saving C. polluting D. watching 学科网（北京）股份有限公司 $