Unit 4（第3课时） Section A 4a-4d 课件 2025-2026学年人教版八年级英语下册

人教版英语8年级下册培优备课精做课件 Unit 4（第3课时） Section A 4a-4d Unit 4 The Wonders of Nature 授课教师： Home . 班 级： 8年级（---）班 . 时 间： . 2026年2月14日 2026年2月14日星期六9时20分44秒 2026年2月14日星期六9时20分45秒 4a Read the sentences. Circle the adjectives which compare things. Underline the adverbs which compare actions. What is the biggest desert in the world? It is the Sahara Desert. How big is it? It is about 9,000,000 square kilometres in size. Where is the deepest point in the ocean? It is in the Mariana Trench. How deep is it? It is about 11,000 metres deep. Some deep-sea animals are blind, but they can “see” as well as others. Mount Qomolangma is one of the greatest wonders of the world, and it is still growing taller. The Yangtze River travels the farthest in China and is about 6,300 kilometres long. 一、用所给词的适当形式填空。(5分) 1. The city has the second ____________ (large) population in the country. 2. Hongcun Scenic Area in Huangshan City is one of the _____________ (famous) ancient villages in China. 3. We are happy to see our city is developing _____________ (quickly) than before. largest  most famous more quickly 中考考法 4.［扬州中考］The international influence of Yangzhou is getting ________ (strong) than before. 5. Cindy is as ________ (outgoing) as her mother. They both enjoy talking with others. stronger outgoing 中考考法 比较级(用于两者之间的比较) ①形容词比较级＋than... He is taller than me. 他比我高。 ②the+比较级, the +比较级 越……，就越…… The more careful you are, the fewer mistakes you will make.你越仔细，犯的错误就越少。 Grammar 形容词和副词的比较级和最高级 比较级(用于两者之间的比较) ③比较级+and+比较级 more and more+原级 The weather is getting colder and colder.天气越来越冷了。 Our hometown is becoming more and more beautiful.我们的家乡变得越来越美丽。 Grammar 形容词和副词的比较级和最高级 越来越…… 最高级(用于三者或三者以上的比较)： ①the+形容词的最高级＋of/in... He is the tallest of the three. 他是这三个人中最高的。 He is the funniest in his class. 他是他们班最有趣的。 最高级(用于三者或三者以上的比较)： ②one of the+形容词最高级+可数名词复数 ＋of/in... ……中最……的……之一 Pingyao Ancient City is one of the best-kept ancient cities in China. 平遥古城是中国保存最完好的 古城之一。 最高级(用于三者或三者以上的比较)： ③Which/Who ...+(the) +最高级, A, B or C ? Who sings the best in your class, Lily, Tom or Jack?你们班谁唱的最好， 莉莉、汤姆还是杰克？ 二、 用英语写出这些数字。(6分) 6. Last month, our school held a book sale, and more than 2,000 (________________________) students took part in the activity. 7. We sold 36,772 (______________________________________________) books in total during the sale. two thousand thirty-six thousand seven hundred and seventy-two 中考考法 8. The activity raised five hundred and twenty thousand five hundred (____________________) yuan for children in poor areas. 9. We spent two hundred and thirty thousand (______________________) yuan buying new chairs and desks for the school. 520,500 230, 000 中考考法 10. We used the other 290,500 (______________________________________________) yuan to buy schoolbags and other school things for 3,550 (___________________________________) children. two hundred and ninety thousand five hundred three thousand five hundred and fifty 中考考法 形容词、副词比较级和最高级的变化： 规则变化 ①一般情况下，单音节或双音节的形容词 （或副词）比较级＋er ，最高级＋est clever－cleverer－cleverest few－fewer－fewest small－smaller－smallest ②以e结尾的词，比较级＋r，最高级＋st nice－nicer－nicest cute－cuter－cutest large－larger－largest ③以“辅音字母＋y”结尾的变y为i＋er或est easy－easier－easiest happy－happier－happiest ④多音节和部分双音节词需要在形容词原级前＋more构成比较级，＋the most构成最高级。 beautiful－more beautiful－the most beautiful careful－more careful－the most careful useful－more useful－the most useful 不规则变化 good －better－best well－better－best bad－worse－worst many, much－more－most far－farther－farthest (距离远) far－further－furthest (程度深) old－elder－eldest (长幼) old－older－oldest (年龄) 三、单项选择。 11.( )［江西中考］—Dad, could I spend my pocket money on beautiful dresses? —It’s OK. But I think spending it on books is ____. A. less meaningful B. less comfortable C. more meaningful D. more comfortable C 中考考法 12.( )—Can you teach me how to improve spoken English? —The more you practice, ____ it becomes. A. the worse B. the worst C. the better D. the best C 中考考法 13.( )Look! There is a small ____ in the park. Some ducks and fish are swimming in it. A. hill B. road C. pool D. sea C 中考考法 14.( )［天津中考］Lingling is one of ____ students in my class. She is always ready to offer help. A. helpful B. more helpful C. less helpful D. the most helpful D 中考考法 15.( )Among all the students in our class, Lily runs ____, and Lucy runs ____ than most of us. A. faster; fastest B. fastest; faster C. the faster; the fastest D. the fastest; the faster B 中考考法 较大数字的表达与读法 1. 从数字的右端向左数，每三位数加一个逗号。 2. 从右向左，第一个逗号处读thousand(千)，第二个逗 号处读million(百万)，第三个逗号处读billion(十亿)。 3. 读的时候通常在hundred后加and，如果百位数为0， 则在thousand后加and。 大于一千的基数词的表达法 4.英语中没有直接表示“万”和“亿”的单位词，而要用thousand 和million来表达，如“一万”用“ten thousand”、“一亿”用“one hundred million”。 2,674→two thousand six hundred and seventy-four 164,213,430→ one hundred and sixty-four million, two hundred and thirteen thousand, four hundred and thirty 18,357,089→ eighteen million, three hundred and fifty-seven thousand, and eighty-nine 5,204,000,000→five billion two hundred and four million 1.Mount Kilimanjaro is________ (five thousand, eight hundred and ninety-five) metres high. 2.__________ (twenty-five thousand, seven hundred and sixty- eight) cubic metres of water pours down Inga Falls each second. 3.The East African Rift Valley is about 4,000 (______________) miles long. 4.The Taklimakan Desert has a total area of about 337,000 (____________________________________) square kilometres. 5, 895 three hundred and thirty-seven thousand 4b Write or spell out the numbers. 25, 768 four thousand 总面积为…… 4c Complete the passage with the correct forms of the words in the box. large amazing far close loud My friends and I visited Victoria Falls in Africa last year. Visiting one of the world’s_________ waterfalls was a magical experience. As we went_________ to the falls, the noise of the water slowly grew louder and_________. Then, right before our eyes, the waterfall appeared. It went on for as_______ as the eye could see. Later, we sat in a special pool at the top of the falls. There, we felt the water rush past us and become a part of the waterfall. It was the scariest but also the______________ experience of our trip!  largest most amazing closer louder far  极目所尽 4d Write some questions to compare places. Then ask a partner your questions. What is the highest...? Which park is bigger, ... or ...? 四、根据汉语意思完成句子。(16分) 16. 运动中心的游泳池可以装800立方米的水。 The swimming pool in the sports centre can hold 800 ________ ________ of water. 17. 互联网在我们的生活中变得越来越重要。 The Internet is getting _______________________________ in our lives. cubic metres more and more important 中考考法 18. 他们偶尔去爬山以亲近大自然。 They go mountain climbing from time to time to get ________ ________ nature. 19. 我在山顶欣赏日出。它的美丽使我激动地跳了起来。 I enjoyed the sunrise _______ ______ _______ _______ the mountain. Its beauty made me jump in excitement. close to at the top of  中考考法 1) Mount Qomolangma is_________than any other mountain in the world. 2) The Sahara Desert is_____________ desert in the world. 4) The Nile is____________ river in the world. 6) — Did you know that China is one of___________ countries in the world? — Yes, I did. It’s_______ _______ than my country. higher the biggest Fill in the blanks. the longest the oldest much older 20. 目之所及，绿色的山丘绵延数英里。 ________ ________ ________ the eye can see, the green hills run for ________. As far as miles 中考考法 五、短文填空。(20分) The Grand Canyon is one of the 21. ________________ (wonderful) natural wonders in the world. It’s in the southwestern part of the United States. When you see it, you’ll be surprised by its great 22. __________(deep) and wide space. The rocks there have many different colours, 23. ________ red, brown and gray. most wonderful depth like 中考考法 Their shapes are really special, too. Every year, thousands of 24. ________ (tour) from different countries come here to enjoy the amazing views. My family and I visited the Grand Canyon last summer. As soon as we got there, we felt so25. ________ (excite). It was much more beautiful than we 26. ________ (think). tourists excited thought 中考考法 We walked along the canyon, took a lot of photos, and listened to the tour guide’s stories about 27. ________ (it) history. It was really interesting. If you want to visit the Grand Canyon, spring and autumn are the 28. ________ (good) times. The weather is cool and comfortable then. its best 中考考法 Summer is too hot, and winter may be too cold. You can hike along the paths, take a boat trip on the river,29. __________ just sit and enjoy the beautiful scenery. It will 30. __________ (sure) make your trip enjoyable. or surely 中考考法 六、［眉山中考］阅读还原。(有一项多余)(5分) Yandang Mountain is known as the “No.1 Mountain in Southeast China.” 31. ________ It stands about 1,057 metres above sea level. Its name comes from a dried-up lake at the top. The lake is called Yanhu Lake, or Goose Lake. 32. ________ A. The temples are in different styles. B. The falls are divided into three levels by rock cliffs. C. The mountain is full of interesting natural sights. D. In autumn, wild geese(大雁)rest in the reeds around the lake. E. And many famous artists have left works here. F. The mountain is located in Wenzhou, Zhejiang Province. F D 中考考法 The mountain was not widely known until the Song Dynasty because it was hard to hike across it. The famous Ming Dynasty explorer Xu Xiake once said, “Only the gods can see all the wonders of Yandang Mountain.” Over the past hundreds of years, people have built many temples on the mountain. 33. ________These works include stone sculptures(雕塑), calligraphic tablets(书法碑刻)and paintings on the rocks. A. The temples are in different styles. B. The falls are divided into three levels by rock cliffs. C. The mountain is full of interesting natural sights. D. In autumn, wild geese(大雁)rest in the reeds around the lake. E. And many famous artists have left works here. F. The mountain is located in Wenzhou, Zhejiang Province. E 中考考法 34. ________ One of the most famous is Ling Feng, or Spiritual Peaks. This area has many strange peaks and cliffs(峭壁). They look different from different sides. Take Hezhang Peak for example. The 270-metre-high peak can look like a pair of hands, a young lady in a qipao or two people in each other’s arms. A. The temples are in different styles. B. The falls are divided into three levels by rock cliffs. C. The mountain is full of interesting natural sights. D. In autumn, wild geese(大雁)rest in the reeds around the lake. E. And many famous artists have left works here. F. The mountain is located in Wenzhou, Zhejiang Province. C 中考考法 Another well-known sight is Sanzhepu, or Three-Terraced Falls. 35. ________ They are some of the most special waterfalls on the mountain. A. The temples are in different styles. B. The falls are divided into three levels by rock cliffs. C. The mountain is full of interesting natural sights. D. In autumn, wild geese(大雁)rest in the reeds around the lake. E. And many famous artists have left works here. F. The mountain is located in Wenzhou, Zhejiang Province. B 中考考法 积累 联系上文，完成知识积累。(8分) 1. be known as ________________(同义短语) 2. above sea level ______________(反义短语) 3. not...until ________________ 4. take...for example ________________ 5. look like ________________ be famous as below sea level 直到……才 以……为例 看起来像 中考考法 拓展 6.我昨晚直到9点才完成作业。(完成句子) I ________ ________ my homework ________ 9 o’clock last night. didn’t finish until 中考考法 比较级和最高级的构成 语法知识导图 比较级+than the+比较级，the+比较级 比较级的用法 规则变化、不规则变化 形容词和副词的比较级与最高级 比较级+and+比较级 more and more+形容词/副词原级 语法知识导图 最高级的用法 形容词和副词的比较级与最高级 (the+)最高级+in/of/among短语 one of the+形容词最高级+可数名词复数+in/of 短语 “Which/Who…(+the)+最高级，A, B or C?” $