Unit 4 The Wonders of Nature Section A(3a-3d) 巩固提高 2026-2027学年人教版英语八年级下册

Unit 4 The Wonders of Nature 人教版（2024）八年级英语下册　Section A How high is Qomolangma? 课时 2 Section A(3a-3d) 巩固提高 1星题——基础巩固 一、根据句意及首字母或汉语提示完成单词。 1. The Nile is about 6,671 k________ long. 2. The Caspian Sea's s________ is about 416 metres below sea level. 3. China covers an a________ of about 9.6 million square kilometres. 4. The new bridge is about 2,000 m________（米）long. 5. The lake is about 300 metres d________（深）. 二、用括号内所给词的适当形式填空。 6. Qomolangma is 8,848 ________（metre）high. 7. The Yangtze River is the ________（long）river in China. 8. Which is ________（big）, the Sahara or the Gobi Desert? 9. China is one of the ________（country）with the longest history in the world. 10. How ________（deep）is the lake? — It's about 200 metres deep. 三、根据汉语意思完成句子，每空一词。 11. 世界上最高的山是什么山？ ________ ________ the ________ mountain in the world? 12. 这条河大约6,300千米长。 The river is about ________ ________ ________. 13. 它的表面低于海平面416米。 Its ________ is 416 metres ________ ________ ________. 14. 它占地约900万平方千米。 It ________ an ________ of about 9 million square kilometres. 15. 那座山有多高？——大约8,848米高。 ________ ________ is the mountain? — It's about 8,848 metres high. 四、按要求完成句子，每空一词。 16. The Nile is 6,671 kilometres long.（对画线部分提问） ________ ________ is the Nile? 17. The lake is about 300 metres deep.（对画线部分提问） ________ ________ is the lake? 18. What is the highest mountain in the world?（改为同义句） Which mountain is ________ ________ in the world? 19. The river is 6,300 kilometres long.（改为感叹句） ________ ________ the river is! 20. The Sahara is the biggest desert in the world.（改为同义句） The Sahara is ________ ________ ________ desert in the world. 2星题——能力提升 五、补全对话（从方框中选择恰当的句子，有一项多余）。 A: Hi, Bill. Do you know the Yangtze River? B: Of course. ________21 A: That's right. ________22 B: It's about 6,300 kilometres long. It's the third longest river in the world. A: Amazing! ________23 B: Yes, it is. It runs into the East China Sea at last. A: ________24 B: The Yellow River. It is the second longest in China. A: I see. ________25 B: They are both mother rivers of China. We should protect them. A. What about the Yellow River? B. It's the longest river in China. C. How long is it? D. Is it the longest river in Asia? E. Why are they important? F. Where do you live? 六、用括号内所给单词的适当形式填空。 26. Qomolangma is the ________（high）mountain in the world. 27. The Nile is about 6,671 ________（kilometre）long. 28. The Dead Sea is famous for its ________（salt）water. 29. Of all the lakes here, this one is the ________（deep）. 七、从方框中选取适当的句子完成对话（有一项多余）。 A: Mary, what are you reading? B: A book about natural wonders. ________30 A: Yes, I do. It's 8,848 metres high. B: Wow! ________31 A: The Nile. It's about 6,671 kilometres long. B: ________32 A: The Sahara. It covers an area of about 9 million square kilometres. B: Big numbers! ________33 A: The Caspian Sea. Its surface is about 416 metres below sea level. B: ________34 A: Because I want to travel around and see them with my own eyes. A. What is the longest river in the world? B. What is the biggest desert in the world? C. What is the biggest lake in the world? D. Do you know how high Qomolangma is? E. Why are you reading it? F. How old are you? 答案与解析 一、1.kilometres　2.surface　3.area　4.metres　5.deep 二、6.metres　7.longest　8.bigger　9.countries　10.deep 解析：6 题大数表达"数字 + 单位复数 + 形容词"，8,848 大于 1，metre 用复数；7 题句意"最长的河流"，用最高级 longest；8 题两者比较用比较级，big 双写 g 加 -er；9 题 one of the + 名词复数；10 题对深度提问用 How deep。 三、11.What is; highest　12.6,300 kilometres long　13.surface; below sea level　14.covers; area　15.How high 四、16.How long　17.How deep　18.the highest　19.How long　20.bigger than any other 解析：16 题画线部分是长度，用 How long 提问；17 题画线部分是深度，用 How deep 提问；18 题问句与陈述句互换，"世界上最高的山"也可说 the highest mountain；19 题感叹句用"How + 形容词 + 主语 + 谓语！"，long 是形容词；20 题"最……"可换成"比较级 + than any other + 单数名词"。 五、21.B　22.C　23.D　24.A　25.E 解析：21 下文 That's right. 说明在陈述事实，选 B；22 下文回答了长度，选 C；23 下文 Yes, it is. 回答一般疑问句，与"最长"相关，选 D；24 下文回答的是另一条河，选 A；25 下文 They are both mother rivers... 解释的是重要性，选 E。（F 项为多余项。） 六、26.highest　27.kilometres　28.salty　29.deepest 解析：26 题 in the world 范围提示用最高级；27 题数字大于 1，kilometre 用复数；28 题 salt 的形容词形式是 salty，修饰名词 water；29 题 of all the lakes 提示三者以上比较，用最高级 deepest。 七、30.D　31.A　32.B　33.C　34.E 解析：30 下文 Yes, I do. 回答一般疑问句，并给出 8,848 metres high，选 D；31 下文回答的是最长的河，选 A；32 下文回答的是最大的沙漠，选 B；33 下文回答的是最大的湖，选 C；34 下文 Because... 回答原因，选 E。（F 项为多余项。） 学科网（北京）股份有限公司 $