Unit 4 Section A 第1课时(1a 2d)-（教师用书）【中考123】2025-2026学年八年级下册英语全程导练（人教版·新教材）

本初中英语讲义聚焦“自然奇观”主题，系统整合自然奇观描述所需核心词汇（如depth, measurement）、句型转换（同义句转换及对高度、深度等的提问），搭建从基础词汇到综合表达的学习支架，为学生后续自然主题交流奠定语言基础。 资料设计融合语言能力与文化意识培养，通过补全对话（如“奋斗者”号深海探索）提升语言表达，完形填空融入中国自然奇观增强家国情怀。多样化题型（词汇练习、句型转换、完形填空）助力学生巩固知识，课中辅助教师分层教学，课后帮助学生查漏补缺，提升学习能力。

Unit 4 The Wonders of Nature Section A　What is amazing about nature? 第1课时　Section A(1a­2d) [答案 P9] 一、根据首字母完成句子。 1．The weather in Arxan(阿尔山)usually drops below zero starting from October. 2．The measurement of the room is 5 metres long. 3．She spends a lot of time doing research on environmental protection. 4．This is a high level of difficulty for us. 5．The surface of the table is very smooth. 二、用括号内所给单词的适当形式填空。 1．The depth(deep)of the lake is about 50 metres. 2．It was an unusual(usual)day because it snowed in summer. 3．What an amazing thing to dive(dive)into the deep sea to see the deep­sea plants and animals! 4．The Pacific Ocean is the largest(large)ocean on Earth, covering more than 60 million square miles. 5．The coldest(cold)wonder is the Antarctic ice with temperatures below －80 ℃. 三、从方框中选词填空。 Angel Falls, Dead Sea, Nile River, Sahara Desert Mariana Trench, Mount Qomolangma 1．The Nile River is one of the longest rivers in the world. 2．Angel Falls is the highest waterfall in the world. 3．Mount Qomolangma is the highest mountain in the world. 4．The Dead Sea is the lowest place on earth. 5．The Sahara Desert is the largest hot desert in the world. 6．The Mariana Trench is the deepest part in the ocean. 四、句型转换。 (一)同义句转换。 1．Mount Qomolangma is 8，848.86 metres high. Mount Qomolangmahas a height of 8，848.86 metres. Mount Qomolangma is 8，848.86 metres in height． 2．The size of the Sahara Desert is about 9，000，000 square kilometres. The Sahara Desert is about 9，000，000 square kilometres in size． 3．The Dead Sea is 416 metres below sea level at its surface. The Dead Sea's surface is 416 metres below sea level． 4．The Mariana Trench is about 11，000 metres deep. The depth of the Mariana Trench is about 11，000 metres. The Mariana Trench is about 11，000 metres in depth. 5．The Nile River is 6，671 kilometres long. The Nile River is 6，671 kilometres in length． (二)对画线部分提问。 1．Mount Qomolangma is8，848.86 metres high. How high is Mount Qomolangma? 2．The Sahara Desert is about9，000，000 square kilometres in size. What size is the Sahara Desert? How large is the Sahara Desert in size? 3．The Dead Sea's surface is 416 metres below sea level． How far below sea level is the Dead Sea's surface? 4．The Mariana Trench is about11，000 metres deep． How deep is the Mariana Trench? 5．The Nile River is 6，671 kilometres long. How long is the Nile River? 五、根据汉语意思完成句子，每空一词。 1．我们应该更多地了解深海，因为它充满了奥秘。 We should learn more about the deep sea because it's full of mysteries. 2．中国的“奋斗者”号已经抵达了海洋的一个极深区域。 China's Fendouzhe has reached a very deep part of the ocean． 3．泰坦尼克号沉在海底3 800米的深度处。 The Titanic rests at a depth of 3，800 metres under the sea. 4．许多深海动物拥有在黑暗中生存的特殊能力。 Many deep­sea animals have unusual abilities to survive in the dark. 5．令人难过的是，在海洋一万米深的地方甚至都有垃圾。 It's sad that there is rubbish even at 10，000 metres deep in the ocean. 六、补全对话。 A: Hi, Li Hua! Have you heard about China's deep­sea exploration? B: Yes, of course. China's Fendouzhe is really amazing. A: 1.A B: It dived into the Mariana Trench. A: 2.B B: It can reach a depth of about 11，000 metres. A: Wow! That's incredible. 3.D B: Well, curiosity is one reason. We don't know enough about the ocean floor. Also, there are many valuable resources in the deep sea. A: What about deep­sea animals? 4.E B: Many of them are large and unusual. Some are blind but can “see” well, and some can even create their own light. A: But I heard there's rubbish even at 11，000 metres deep. B: 5.C We should take action to protect the ocean. A．Where did it dive? B．How deep can it go? C．That's really terrible. D．Why do countries research the deep sea? E．What are they like? F．When was it built? 七、完形填空。 [保护自然奇迹，共创未来]The world is full of natural wonders. Mount Qomolangma is the highest mountain in the world. Its height is 8，848.86 metres and it is still 1 taller. The Sahara Desert is the biggest desert in the world. It covers about 9，000，000 square kilometres. The Dead Sea is the lowest place on Earth. It is about 430 metres 2 sea level. China has many natural wonders too. The Taklimakan Desert is one of the largest deserts in China. The Yangtze River, the longest river in China, 3 about 6，300 kilometres long. The Yellow River is the second longest and is very important in Chinese history, 4 it helped ancient civilizations develop. Deep­sea exploration is also a hot topic. China's Fendouzhe can dive into the deep sea. It reached a depth of 5 11，000 metres in the Mariana Trench. Many deep­sea animals are special. Some can 6 their own light to live in the dark. But there is a problem: rubbish is found even at such a 7 depth. We should learn about these natural wonders and 8 them. They are not only part of our planet's history but also important for our future. To know more, we can read books or 9 scientific programs. Let's take action to make sure these wonders 10 for a long time. (A)1.A．growing　　　　　 B．keeping C．staying D．wondering (C)2.A．above B．over C．below D．behind (A)3.A．is B．being C．was D．will be (B)4.A．so B．because C．but D．and (A)5.A．nearly B．hardly C．mostly D．really (B)6.A．send B．create C．show D．dive (D)7.A．long B．high C．wide D．deep (A)8.A．protect B．pollute C．use D．research (A)9.A．watch B．look C．see D．risk (B)10.A．leave B．remain C．forget D．explore 学科网（北京）股份有限公司 $