Unit 4 Section A （1a—2d）-【初中学霸创新题】2025-2026学年八年级下册英语习题课件(人教版·新教材)

该初中英语课件围绕“Unit 4 The Wonders of Nature”展开，聚焦自然奇观相关词汇与表达，通过歌曲或自然奇观图片导入，从基础单词变形（如usual→unusual）到句子翻译，再到语篇理解（完形、阅读），搭建由词到句再到篇章的学习支架，帮助学生逐步掌握单元重点。 其亮点在于融合语言能力与文化意识，通过地域特色题（如黄山奇石）、环境保护情境（黄河垃圾清理）及中外自然奇观（贝加尔湖、死海）的语篇，让学生在真实语境中运用语言，增强跨文化认知。同时设计推断题、写作手法分析等题型提升思维品质，分层练习助学生巩固基础、提升能力，教师可直接用于课堂检测与拓展教学。

Unit 4　 The Wonders of Nature Section A （1a—2d） 2 练基础 目 录 练提升 3 练基础 一、用括号内所给单词的适当形式填空。 1. （教材改编题）Some animals have ________（usual） abilities. Some can create their own light. 2. ________（dive） into the cool water on a hot day feels very amazing. 3. The pool’s ________（deep） is just right for us to swim safely. 4. ［地域特色］Mount Huangshan in Anhui is full of ________（wonder）, like its strange rocks and the Sea of Clouds. 5. In PE, we did a standing long jump and took ____________（measure） in metres. unusual Diving depth wonders measurements 目 录 导 航 二 三 一 四 五 六 4 6. It fell ________ zero to -3 ℃ last night. 7. ［俗语运用］He who would climb the ladder must begin at the ________. 8. My brother spent hours _____________ what topics are popular. 9. ［环境保护］The students are picking up the rubbish on the ________ of the Yellow River. 10. He wants to improve his English ________ quickly, so he asks his teacher for help. 二、用方框内所给单词的适当形式填空。 below bottom researching surface level 目 录 导 航 二 三 一 四 五 六 5 11. 在地球上，有许多不同种类的动物。 ________ ________, there are many different kinds of animals. 12. 这片森林的面积大约有五十平方千米。 The area of this forest is about ________ ________ __________. 13. 055型驱逐舰体型巨大，有18辆校车那么长！ The Type 055 Destroyer is huge ________ ________, as long as 18 school buses in a row! 三、根据汉语意思完成句子，每空一词。 On earth fifty square kilometres in size 目 录 导 航 二 三 一 四 五 六 6 14. 上周，那些考察船潜入了深海，去探索未知的世界。 Those research vessels ________ ________ the deep sea last week to explore the unknown world. 15. （教材改编题）死海的表面低于海平面416米。 The surface of the Dead Sea is 416 metres ________ ________ ________. dived into below sea level 目 录 导 航 二 三 一 四 五 六 7 四、完形填空。 　　You must know a popular song about Lake Baikal. Then what do you know about the amazing natural（自然的） 16 —Lake Baikal？ 　　Lake Baikal in Russia is one of the most 17 lakes in the world. It has a history of 25 million years. It’s also the deepest freshwater（淡水的） lake in the world. Although its 18 is 455 metres above（高于） sea level, its deepest point lies about 1,182 metres below sea level. The water is so 19 that people can drink it directly. 练提升 目 录 导 航 二 三 一 四 五 六 8 　　Lake Baikal is like a 20 and people also think it looks like a crescent（月牙形） moon. Lake Baikal is beautiful and a lot of 21 come to visit it every year. They usually come in summer. It is not cold then. They can 22 the blue water and the green mountains. However, some prefer to come in winter. Even though it is 23 , they can have fun on the ice. The ice can be up to 60 cm thick（厚的）. It’s 24 . They feel free to do whatever they like, without worrying about 25 the water. It’s a place worth visiting. 目 录 导 航 二 三 一 四 五 六 9 16. A. square B. forest C. beach D. wonder 17. A. common B. ancient C. dangerous D. dangerous 18. A. centre B. middle C. surface D. bottom 19. A. clean B. dirty C. hot D. sweet 20. A. banana B. tree C. ball D. fan 21. A. coaches B. climbers C. tourists D. keepers 22. A. enjoy B. save C. copy D. develop 23. A. warm B. freezing C. rainy D. stormy 24. A. soft B. large C. clear D. safe 25. A. throwing away B. cutting down C. reaching for D. falling into D B C A A C A B D D 目 录 导 航 二 三 一 四 五 六 10 五、阅读理解。 　　The Dead Sea lies in the Jordan Rift Valley in southwest Asia and is about 80 kilometres long and 18 kilometres wide at its widest point. What’s interesting is that the Dead Sea isn’t actually a sea. It’s a lake with a salt concentration（浓度） of more than 30 percent. That is to say it is about eight times saltier than normal seawater. 　　The Dead Sea stays so salty because of its special natural conditions. It is the lowest point on earth’s land so there is no outlet（出口） for the Dead Sea. Each year, it receives very little rainfall. And the hot weather around the Dead Sea causes the fresh water to evaporate（蒸发） quickly. That makes the salt concentration even 目 录 导 航 二 三 一 四 五 六 11 higher. So it is also known as the Salt Sea. 　　If you were to swim in the Dead Sea, you wouldn’t see any sea life. The high salt concentration makes it impossible for sea life to live there. That’s actually why it’s called the Dead Sea. 　　However, don’t let the name scare you. Even if you fall into the Dead Sea and can’t swim, you won’t die. The high concentration of salt in the Dead Sea allows anyone to float（漂浮） well, without the need for swim aids. In fact, many people visit the Dead Sea every year on vacation. They like floating in the water, reading books or magazines. 目 录 导 航 二 三 一 四 五 六 12 26. ［写作手法］How does the writer start the text？ A. By giving examples. B. By asking questions. C. By showing some facts. D. By telling a story. 27. ［组合选择］What causes the Dead Sea to have such a high salt concentration？ ①The low altitude（海拔）. ②The low rainfall. ③Hot weather. ④Human activities. A. ①②③ B. ②③④ C. ①③④ D. ①②④ C A 目 录 导 航 二 三 一 四 五 六 28. What can we know from paragraph 4？ A. How deep the Dead Sea is. B. Why people can float on the Dead Sea. C. The best time to visit the Dead Sea. D. How the Dead Sea was formed. 29. ［学科融合］What can we infer from the text？ A. The Dead Sea will become less salty. B. Plants are growing better in the Dead Sea. C. The salt concentration of normal seawater is about 3.5%. D. Swimming in the Dead Sea is dangerous. B C 目 录 导 航 二 三 一 四 五 六 30. In which part of a newspaper do you probably see the text？ A. History. B. Nature. C. Culture. D. Sports. B 目 录 导 航 二 三 一 四 五 六 六、补全对话。 （Kim wants to know about the Nile River.） Kim: Ella, do you know about the Nile River in Africa？ 31. _________________________ Ella: It’s 6,671 kilometres long! Kim: Wow! 32. ____________________________________ Ella: Yes. And the Amazon River is the second longest. Kim: Oh, I see. 33. _________________________________ Ella: It runs through eastern Africa. How long is it？ /... Is it the longest river in the world？ /... Where does it run through？ /... 目 录 导 航 二 三 一 四 五 六 Kim: 34. _________________________________ Ella: Sure, it’s a very important home for animals. Kim: Cool! 35. _____________________________________ ______________________________ Ella: People use water from the Nile River to grow crops（庄稼）. It helps farmers a lot. Kim: I really want to visit the Nile River one day! Is it important for animals？ /... What do people use the Nile River for？ / How do people use the river？ /... 目 录 导 航 二 三 一 四 五 六 18 $