Unit 4 单元综合复习课件 2025-2026学年八年级英语下册同步教学精品课件（新教材人教版）

Review Unit 4 The Wonders of Nature Learning Aims 语言能力 文化意识 思维品质 学习能力 1.掌握核心词汇：fantastic, town, breath, take one’s breath away, especially, steamed chicken soup, anywhere, nothing。 2.熟练运用句型：—How was your holiday? – It was... —Did you go anywhere interesting? – Yes, I went to... —Did you eat anything special? – Especially... 1能捕捉对话中假期地点、活动及感受的关键信息，提取细节并完成信息表格，模仿正确语调。 2.运用目标句型与同伴进行假期经历的问答练习，能用过去时连贯描述旅行经历。 1.能根据提示设计 “微信朋友圈” 分享自己的假期经历，能通过采访家人或朋友，整理假期故事并进行班级汇报，体现语言综合运用能力。 1.了解云南丽江的自然与文化景观（玉龙雪山、纳西古乐）。 2.培养 “享受当下” 的假期价值观，尊重多元度假方式。 多种题型检测复习效果，即学即练 CONTENTS 2.Phrases 1.Words 5.Grammar 6.Writing 3.Sentences 4.Language points Review 1.Words 1. wonder 2. measurement 3.square kilometre 4. below 5.level 6. surface 7. depth 8. dive 9. research 10. vessel n.奇观;惊叹v.琢磨;想知道;感到诧异 n.数量;测量平方千米 prep.在(或到)......下面;少于;低于 adv.在(或到)下面 n高度;水平;程度 n,表面;表层 n.深(度);纵深 v.&n.潜水;跳水;俯冲 v.&n.研究;调查 n.大船;轮船 11.unusual 12. bottom 13. waterfall 14.civilization/civilisation 15. means 16. development 17.desert 18. cubic 19.mile 20. pool adj.特别的;不寻常的 n.底部;最下部 n.瀑布 n.文明 n.方式;途径 n.发展;壮大 n.沙漠;荒原 adj.立方的 n.英里 n.池塘;水坑 21. explorer 22. simply 23. risky 24. southern 25. located 26. freshwater 27. type 28. attract 29. curious 30. traveller/ traveler n.探险者;勘探者 adv.仅仅;只;简单地 adj.有危险(或风险)的 adj.南部的;向南的 adj.位于;坐落在 adj.淡水的;淡水中生长的 n.类型;种类 v.吸引;招引;引起(反应) adj.好奇的;求知欲强的 n.旅行者;游客 31.natural 32. underwater 33. northeastern 34. coast 35.coral 36. reef 37. include 38. sand 39. alive 40. structure adj.自然的;天然的;天生的 adj.水下的;用于水下的adv.在水下 adj.东北的;东北方向的 n.海岸;海滨 n.珊瑚;珊瑚虫 n.礁;礁脉 v.包含;包括 n.沙子 adj.活着;在世;有活力 n.结构(体);构造;体系 51.snorkel 52. school 53. turtle 54. lifetime 55.condition 56. degree 57. cliff 58. changeable 59. death 60. determined v.使用呼吸管潜泳n.(浮潜用的)呼吸管 n.(鱼、鲸、海豚等的)群 n.海龟;龟 n.一生;终身 n.状态;境况 n.度;度数;程度 n.悬崖;峭壁 adj.可能变化的;易变的;常变的 n.死亡;毁灭;破灭 adj.有决心的;坚决的 61. climber 62. northern 63. distance 64. survive 65.condition 66. measure 67. successfully 68. risk v. 69. curiosity 70. ambition n.攀登者;登山者 adj.北部的;向北的 n.距离;遥远 n.生存;存活;艰难度过 n.状态;境况 v.测量;量度为n.措施;度量单位 adv.成功地;顺利地 使......冒风险(或面临危险)n危险;风险 n.好奇心;求知欲 n.追求的目标;野心;雄心 71. above 72. teammate 73. shoulder 74. bit by bit 75. ladder prep.在(或向).....上面;超过 adv.在(或向)上面;在(或向)高处;超过 n.同队队员;队友 n.肩膀;肩部 一点一点地;逐渐地 n.梯子;阶梯;途径 Review 2.Phrases 1. The Wonders of Nature  2. geography facts  3. natural wonders  4. famous places 5. large numbers 6. Nile River  7. Angel Falls 8. Mount Qomolangma  9. Dead Sea  10. Sahara Desert  自然奇观 地理事实 自然奇观 著名地点 大数字 尼罗河 安赫尔瀑布 珠穆朗玛峰 死海 撒哈拉沙漠 11. Mariana Trench  12. deep sea  13. Titanic rests  14. deepest dive of a whale  15. deep-sea researcher  16. Yellow River  17. Yangtze River  18. ancient civilizations  19. mother river  20. the biggest desert  马里亚纳海沟 深海 泰坦尼克号残骸处 鲸鱼最深潜水记录 深海研究员 黄河 长江 古代文明 母亲河 最大的沙漠 21. Victoria Falls  22. greatest wonders  23. terrible conditions 24. thin air  25. high cliffs  26. changeable weather  27. Death Road  28. Chinese climbing team  29. national flag  30. Chinese Ladder 维多利亚瀑布 最伟大的奇观 恶劣的条件 稀薄的空气 高悬崖 多变的天气 死亡之路 中国登山队 国旗 中国梯 31. human curiosity  32. human ambition  33. freshwater lake  34. different types of animals  35. natural wonder  36. Great Barrier Reef 37. coral reef 38. salt lake  人类的好奇心 人类的雄心 淡水湖 不同种类的动物 自然奇观 大堡礁 珊瑚礁 盐湖 Review 3.Sentences 1.-How big is it? -It is about 9,000,000 square kilometers in size. 2. Where is the deepest point in the ocean? 3. Some blind animals can “see” as well as others. 4. Visiting one of the world’s largest waterfalls was a magical experience. 5. There, we felt the water rush past us and become a part of the waterfall. 它有多大? 它大约有900万平方公里大。 海洋的最深处在哪里? 一些失明的动物和其他动物一样“看得见”。 参观世界上最大的瀑布之一是一次神奇的经历。 在那里，我们感受着水从我们身边淌过,然后成为瀑布的一部分。 6.A problem shared is a problem halved. 7.Some animals have unusual abilities. Some are blind, but they can see as well as others. Some can even create their own light. 有 8.The Yangtze River is the longest river in China. It travels the farthest and is about 6,300 kilometres long. The Yellow River is 5,464 kilometres long and is the second longest. By the way, do you know why it's called the Yellow River? 分享难题，难题减半。（或：两人分担，困难减半。） 些动物拥有奇特的本领。有些动物目不能视，却能和其他动物一样看清事物，还有些甚至能自己发光。 长江是中国最长的河流，流程最广，全长约 6300 千米。黄河全长 5464 千米，是中国第二长河。对了，你知道它为什么被称作黄河吗？ 9. Both the Nile and the Yellow River helped ancient civilizations to develop. In China, we even call the Yellow River our "mother river"! We should protect them by all means. 10. As we went closer to the falls, the noise of the water slowly grew louder and louder. It went on for as far as the eye could see. 11.We felt the water rush past us and become a part of the waterfall. It was the scariest but also the most amazing experience of our trip! 尼罗河和黄河都孕育了古老的文明。在中国，我们甚至将黄河称作“母亲河”！我们理应竭尽全力保护它们。 当我们走近瀑布时，水声渐渐变得越来越大，瀑布的景象一眼望不到头。 我们能感受到水流从身旁奔腾而过，汇入瀑布之中。这是我们此行中最惊险，却也最震撼的经历！ 12.Until 2007, almost all climbers from the northern side used this "Chinese Ladder" to reach the top much faster. 13. Why do people still risk their lives to climb the highest mountain in the world? It is because human curiosity and ambition cannot be stopped. Or, as the English explorer George Mallory put it, it is simply "because it's there"! 14.For people who love the ocean, visiting the Great Barrier Reef is the dream of a lifetime! 15.Nature makes us wonder. That is why it is wonderful. 直到2007 年，几乎所有从北坡登顶的登山者，都会借助这架 “中国梯”，更快地登上顶峰。 为何人们仍要冒着生命危险，去攀登这座世界最高峰？因为人类的好奇心与探索欲永无止境。正如英国探险家乔治・马洛里所言，答案很简单——“因为山就在那里”！ 对于热爱大海的人来说，造访大堡礁是毕生的梦想！ 大自然总能引发我们的惊叹，这正是它的美妙之处。 16. On the highest place on earth, you will feellike you are able to touch the sky. 17. People said it was so high that even birdscould not reach it. 18.It is because human curiosity and ambitioncannot be stopped. 19. Nature makes us wonder. That is why it iswonderful. 20. Located on the northeastern coast of Australia, the Great Barrier Reef is one of the most amazing places to visit. 在地球上最高的地方，你会觉得你能触摸到天空。 人们说它太高了,连鸟都够不着。 是因为人类的好奇心和野心是无法阻挡的。 大自然让我们感到惊奇。这就是它精彩的原因。 大堡礁位于澳大利亚的东北海岸,是最令人惊叹的旅游胜地之一。 Review 4.Language points Point 1 What other natural wonders do you know? wonder /ˈwʌndə(r)/n. 奇观；惊叹 v. 琢磨；想知道；感到诧异 高频 1. n.[C] 奇观；奇迹 The Grand Canyon is one of the natural wonders of the world. 科罗拉多大峡谷是世界自然奇观之一。 The Great Wall is one of the wonders of the world. 长城是世界奇观之一。 2.wonder 还可以作不可数名词，意为“惊讶；疑惑” The children looked at the magician in wonder. 孩子们惊奇地看着魔术师。 2. v. 琢磨；想知道（相当于 want to know） If you study physics, you wonder why light travels faster than sound. 如果你学习物理，你会想知道为什么光比声音传播速度快。 She wonders why he didn’t call her yesterday. 她疑惑他昨天为什么没给她打电话。 I wonder what time the train will arrive.我想知道火车什么时候到。 3. v. 感到诧异 I wondered at her beautiful singing. 她优美的歌声让我惊讶。 4.no wonder：难怪；不足为奇 in wonder 惊奇地 You’ve been studying all day—no wonder you’re tired. 你一整天都在学习，难怪会累。 Point 2 Its surface is 416 metres below sea level. below 作介词时，强调 “位置、数值、等级等处于另一事物的下方或更低水平”，但不一定是在正下方（对应的反义词为above）。 under表示在某物的正下方 level /ˈlevl/ n. 高度；水平；程度 高度 sea level 海平面 The Dead Sea is one of the few places on Earth that is below sea level.（死海是地球上少数几个低于海平面的地方之一。） 水平；程度 常与介词 of 连用。 a high/low level 高 / 低水平 As long as we keep working, we will achieve higher levels. 只要我们继续努力，我们会达到更高的水平。 below 作介词，意为“在……下面；低于；少于”。 There is a beautiful garden below our window. 在我们窗户下面有一个漂亮的花园。 The sun sank below the horizon. 太阳落到了地平线以下。 His score on the test was below 60. 他这次考试的分数低于60分。 The river below the bridge is very clear.（桥下面的那条河很清澈。） Point 3 about 11.000 metres deep 深约11000米 关于长、宽、高、深的表达： (1) 基数词+单位词+形容词 (long, wide, tall, high, deep等) 10 metres long 10米长 15 meters wide 15米宽 200 metres deep 200米深 (2) 基数词+单位词+in+名词 (length width, height, depth 等) 10 metres in length 10米长 15 meters in width 15米宽 200 metres in depth 200米深 高度：It’s 8.848.86 metres high. 面积：It’s about 9,000,000 square kilometres in size. 低于海平面：It’s 416 metres below sea level. 深度：It’s about 11,000 metres deep. 28 (3) 对长、宽、高等提问用疑问词how。 How long/high/wide ...? ……多长/高/宽？ How wide is this river? 这条河有多宽？ How long is the Great Wall of China? 中国的长城有多长？ 物体长、宽、高、深等的表达法 基数词+单位词+形容词（long、wide、high、deep等） 基数词+单位词+in+名词（length、width、height、depth等） Point 4 A whale can dive to _____. （1）〔动词〕潜水；跳水；俯冲 I dived below the surface of the water. 我潜入了水中。 He likes diving into the swimming pool on hot days. 在炎热的天气里，他喜欢跳进泳池。 （2）〔名词〕潜水；跳水；俯冲 The diver made a dive to a depth of 18 metres. 那名潜水者潜到了18 米水深处。 Point 5 Some animals have unusual abilities … 〔形容词〕特别的；不寻常的；罕见的 The coach has an unusual name. 这个教练有个特别的名字。 It’s unusual to see a rainbow in the desert. 在沙漠里看到彩虹是很罕见的。 unusual adj. 特别的；不寻常的 反义词：usual adj.平常的 unusual由 un-(表示否定)和 usual 构成，意为 “不寻常的；特别的” 【拓展】unusually adv. 不寻常地 usually adv. 通常 常用句型：It’s unusual to do sth. 去做......是不寻常的。 31 Point 6 by the way 意为“顺便说；问一下”。在句子中的位置比较灵活，可以放在句首、句中或句末，一般 用逗号与其他句子成分隔开。 (1) 用于引入新话题。 I’m going to the supermarket to buy some fruit. By the way, do you need anything? 我要去超市买些水果。顺便问一下，你需要什么东西吗? 1. By the way, do you know why it’s called the Yellow River? 顺便问一下，你知道它为什么被称为黄河吗？ (2) 用于补充信息。I’ve finished my homework. By the way, I also helped my mom do some housework. 我已经完成了我的家庭作业。顺便说一下，我还帮我妈妈做了些家务。 (3) 用于提醒对方。 We’re going to the park this weekend. By the way, wear comfortable shoes. 我们这个周末要去公园。顺便提醒一下，穿双舒适的鞋子。 Point 7 Both the Nile and the Yellow River helped ancient civilizations to develop. develop 作动词 1) 表示 “（社会、经济、国家等）发展；进步” e.g. China has developed rapidly in the past 40 years.（中国在过去 40 年里发展迅速。） 2) 表示 “培养（技能、习惯、兴趣等）” e.g. It’s important to develop good eating habits.（培养良好的饮食习惯很重要。） 3)表示 “（疾病、问题等）出现；发展” e.g. The problem developed into a serious crisis.（这个问题逐渐发展成了严重的危机。） development是develop的名词形式，意为“发展；进步；培养……”等 the development of ... ……的发展/培养 e.g. The development of technology has changed our daily lives. 科技的发展改变了我们的日常生活。 Language development in children starts at a very early age. 儿童的语言能力发展从很小的时候就开始了。 Children need a good environment for their physical and mental development. 孩子们需要一个良好的环境来实现他们的身心发展。 in the development of... 在……的发展过程中 搭配 Computers play an important role in the development of modern science. 计算机在现代科学发展中起重要作用。 development 的相关词： develop v. 增强；发展 developed adj. 发达的 developing adj. 发展中的 development n. 发展；壮大 Point 8 But only the best climbers reach the top, and that is only if they survive the terrible conditions first. 但只有最优秀的登山者才能登顶，而且前提是他们首先能在恶劣的条件下存活下来。 survive v. 生存；存活；艰难度过 survive on… 靠……维持生活 survive from… 从……中存活下来 They survive on bread and water during the journey. 旅途中他们靠面包和水生存。 Some animals can survive from very little water. 有些动物靠很少的水就能存活。 survival n. 生存；存活 Survival is the most important thing in the desert. 在沙漠中，生存是最重要的事。 He can survive on a small amount of food every day. 他每天靠少量的食物就能生存。 survive 作动词，意为“生存；存活；艰难度过；从……中幸存”。 Some plants can survive through the cold winter. 有些植物能熬过寒冷的冬天。 She survived the car accident without any serious injuries. 她在车祸中幸免于难，没有受重伤。 Point 9 Mountain climbers even called that way the “Death Road” ... 登山者甚至把那条路称作“死亡之路”…… 【辨析】die, dead, dying 与 death 单词 词性 词义 用法说明 death 名词 死；死亡 在句中作主语或宾语。 die 动词 死 作谓语非延续性动词，不能与表示一段时间的状语连用。 dead 形容词 死的 作定语或表语，表示状态；be dead 可与一段时间连用。 dying 形容词 临终的 作定语，the dying 指“临终者，垂死者”。 语境例句：The old man lies in bed, thinking of his _______army comrades. They ______ for the liberation of the people. It is a worthy ______. His ______wish is to see his living army comrades. dead died death dying Point 10 risk v.使……冒风险 (或面临危险) n. 危险；风险 Why do people still risk their lives to climb the highest mountain in the world? 为什么人们仍然要冒着生命危险去攀登世界最高峰呢？ risk的用法： (1) 作动词，意为“使……冒风险/面临危险”。 risk one’s life (to do sth.)冒着生命危险(做某事) He who risks nothing, gains nothing.不入虎穴，焉得虎子。 ①risk doing sth 冒险做某事 He risked losing his job by telling the truth. 他冒着丢掉工作的风险说出真相。 ②risk one’s life 冒生命危险 Firefighters often risk their lives to save others. 消防员们常常冒着生命危险救人。 (2)[可数名词]&[不可数名词]危险；风险 take risks/take a risk 冒险 She took a risk and started her own business. 她冒险开始了自己的生意。 the risk of... ……的风险 at risk 处境危险，受到威胁 take/run the risk of doing sth. 冒险做某事 We do not expect untrained people to take risks. 我们不希望未经培训的人员去冒险。 We don’t want to run the risk of losing their business. 我们不想冒失去他们的生意的风险。 【拓展】risk 的形容词为 risky，意为“有危险/ 风险的”。 Skydiving is a risky sport. 跳伞是一项有危险的运动。 Point 11 It was 8,600 metres above sea level. 它位于海拔8600米的高度。 above 作介词，用法如下： (1) 表示“(位置)高于；在……之上(不一定垂 直)”，与 below相对。 There is a bridge above the river. 河的上方有一座桥。 (2) 表示“(数量、程度、年龄等)超过；高于”。 The temperature will be above 30℃ tomorrow. 明天的气温将超过30摄氏度。 单词 词义 两物体之间的关系 反义词 above 在……上面 不接触，不一定垂直 below over 在……正上方 不接触，垂直 under on 在……上面 有接触面 beneath She lifted her hands above her head. 她双手举过头顶。 There are two bridges over the river. 在河上有两座桥。 I put the books on the desk. 我把书放在课桌上。 40 Point 12 It takes up an area of 345,000 square kilometres and includes many islands and white sand beaches. 它的面积达34.5万平方千米，包含 900多个岛屿和白色沙滩。 【辨析】include, included与including include 意为“包括；包含”，强调把某事物作为整体的一部分包含在内。后面直接接宾语 included include的过去分词，用来补充说明前面提到的事物包含在某个范围内，放在名词或代词后 including 作介词，用来引出包含在整体中的部分内容，一般放在被包含的事物之前 1.The price of the tour includes ________ (visit) the museum. 2.Everyone _________ (include) in the meeting should arrive on time. 用法：不用于进行时。其后可接名词、代词或动词-ing 作宾语，不可接动词不定式。例句：Students should master one or two life skills every year. These skills can include cooking, washing their own clothes and tidying their rooms. visiting included 语境串记：The whole family will tour some big cities, including Beijing and Shanghai. So everyone is very happy, me included.全家人将去包括北京和上海在内的一些大城市旅游。因此大家非常开心，包括我在内。 alive /əˈlaɪv/ adj. 活着；在世；有活力 单词 词性 词义 用法说明 alive 形容词 活着的 表语形容词，不直接修饰名词，be alive 活着 lively 形容词 活泼的 可作定语/表语，a lively child 活泼的孩子 常用搭配：come alive 热闹起来；有精神起来 bring sth. alive 使……有趣；变得有生气 例句：Love your parents well while they are alive. Don’t wait until it is too late. She comes alive when she sits down at the piano. Point 13 词汇 词性 含义及用法 示例 life n.(lives) 寿命，生活，人生 people's lives人的生命 alive adj. 活着的，在世的 keep alive活着 情绪饱满；有生气；有活力 be alive with happiness 高兴得眉飞色舞 live adj. 活的，多指动物；现场直播的 a live fish一条活鱼 v． 居住；生活 live in居住 lively adj. 充满趣味的；充满生气的 a lively girl一个活泼的女孩 living n. 生计 make a living谋生 拓展： 1.The fish is still _________ in the water.（alive/lively） 2.We had a _________ time at the party.（alive/lively） alive lively 考点集训/夯实基础 返回目录 Review 5.Grammar 形容词/副词的比较级与最高级 定义： ⭐比较级：用于两者之间的比较，常与“than”  连用，描述自然奇观在 “高度、深度、面积”  等维度的差异。 例：The Yangtze River is longer than the Yellow River in China.长江比中国的黄河长。 The Mariana Trench is deeper than any other part of the ocean.马里亚纳海沟比海洋其他任何部分都深。 ⭐最高级：用于三者及以上的比较，常与“the”  连用，后接 “in/of”  短语限定范围，强调自然奇观的 “极致特征”。 例：Mount Qomolangma is the highest mountain in the world. 珠穆朗玛峰是世界最高峰。 The Sahara Desert is the largest hot desert in the world. 撒哈拉沙漠是世界最大的热沙漠。 构成规则 比较级构成规则 最高级构成规则 例词 ①一般词尾直接+er   ①一般词尾直接+est   smart→smarter→smartest（最聪明的） fast→faster→fastest（最快的） ②以不发音的“e”结尾，词尾+r ②以不发音的“e”结尾，词尾+st wide→wider→widest（最宽的） large→larger→largest（最大的） ③“辅音字母+y”结尾，变y为i+er ③“辅音字母+y”结尾，变y为i+est happy→happier→happiest（最开心的） easy→easier→easiest（最容易的） ④重读闭音节且末尾只有一个辅音字母，双写辅音字母+er ④重读闭音节且末尾只有一个辅音字母，双写辅音字母+est thin→thinner→thinnest（最瘦的） fat→fatter→fattest（最胖的） ⑤部分双/多音节词，原级前+more ⑤部分双/多音节词，原级前+most carefully→more carefully→most carefully important→more important→most important 不规则变化 原级 比较级 最高级 单元应用场景 good/well better best The Great Barrier Reef is one of the best places to study marine life. bad/badly worse worst The weather on Mount Qomolangma can get worse quickly. many/much more most The Amazon Rainforest has the most variety of plants and animals. little less least The Dead Sea has less oxygen than other seas, so few fish live there. 用法 ①比较级前加修饰语（much/a lot/a little/even等，表程度） 例：This bag is much bigger than that one.这个包比那个大得多。 ②“越来越……”（结构：比较级+and+比较级；多音节词用more and more+原级） 例：The tree is growing taller and taller.树长得越来越高。 Our city is becoming more and more modern.我们的城市变得越来越现代化。 ③ “越……，越……”（结构：the+比较级, the+比较级） 例：The harder you study, the better grades you will get.你学习越努力，成绩就越好。 ④原级比较：两者“一样……”（结构：as+原级+as） 例：Tom is as tall as Jim.汤姆和吉姆一样高。 ⑤一方“不如”另一方（结构：not as/so+原级+as） 例：This book isn’t as interesting as that one. 这本书不如那本有趣。 ⑥“最……之一”（结构：one of the+最高级+可数名词复数） 例：Beijing is one of the most beautiful cities in China. 北京是中国最美丽的城市之一。 ⑦“第几最……”（结构：序数词+the+最高级） 例：She is the third shortest girl in her team. 她是她队里第三矮的女生。 ⑧比较级与最高级互换 例：Lily runs faster than any other student in her class. = Lily runs the fastest in her class. 莉莉是她班跑得最快的学生。 、 在英语中，数字的基本单位有：hundred（百） ，thousand（千） ，million（百万） ，billion（十亿） ，trillion（万亿，兆） 。300 读作 three hundred   5000 读作 five thousand.对于万以上的数字，我们该如何表达呢？这就要记住英语数字读法特点。以下面一个数字为例： 注意每三个数为一个单位，按照百、十、个向下读。 6 , 500 , 431 , 729 billion million thousand seven hundred and twenty-nine six billion, five hundred million, four hundred and thirty-one thousand, 大数字的表达方法 51 大数字的英文读法 具体数字读法： 以数字345,678,912为例: 1）从右向左划分:按照三位一节，用逗号隔开，这个数字可划分为345,678,912。从右往左，第一个逗号前是千(thousand)，第二个逗号前是百万(million)，第三个逗号前是十亿(billion) 2）依次读出每一节: 最右边一节912，读作“nine hundred and twelve”(注意，在英式英语中，百位和十位之间常用“and”连接，美式英语中，“and”可省略)。 中间一节678，读作“six hundred and seventy-eight”，加上它的单位“thousand”，这部分就读作“six hundred and seventy-eight thousand”。最左边一节345，读作“three hundred and forty-five”，加上单位“million”，这部分读作“three hundred and forty-five million"。 注意：小数点读作“point”，小数点左边的数按整数读法读，右边的数依次读出每个数字。例如: 3.14读作“three point one four” 8848.86 读作“eight thousand，eight hundred and forty-eight point eight six" . 3）组合起来:整个数字就读作“three hundred and forty-five million, six hundred and seventy-eight thousand, nine hundred and twelve"。 注意 ①and 只在百位和十位之间。 ②十位和个位之间要有连字符。 ③逗号之间并列写即可，无 and 和连字符。 ④hundred、thousand、million、billion前面有具体的数字时，用单数；后面有of时，用复数。 含小数点的数字读法 （1）小数点读 point； （2）小数点右面的小数部分按照个位基数词依次读出； （3）小数点后面遇到 0时，可读 zero，可读字母 O。 2,506,981,765.34 读作：two billion, five hundred and six million, nine hundred and eighty-one thousand, seven hundred and sixty-five point three four Review 6.Writing   主题分析 本单元教材写作情境为“为青海湖或其他自然景观写一则广告”，属于“人与自然”主题范畴中“自然生态”这一主题群,涉及子主题有“中国主要城市及家乡的地理位置与自然环境;世界主要国家的地理位置与自然景观;世界不同地区的生态特征”等。常见的写作任务是描述某个国家或地区的自然景观。体裁多为书信等应用文或说明文。 写作指导 （1）明确体裁：广告，语气需活泼、有吸引力，避免过于生硬的说明，结尾可加入呼吁性语句，引导读者前往； （2）明确核心内容：必须围绕“自然奇观”展开，不能涉及人造景观（如游乐园、人造公园），需突出自然形成的特点； （3）明确语言要求：使用八年级下册Unit 3相关词汇和句式，语法正确，句式多样，避免重复，字数控制在80-120词（贴合中考书面表达要求）； （4）明确结构逻辑：先引出自然奇观的名称和位置，再介绍其特色，最后发出邀请，层次清晰。 文体：应用文 2.人称：第二人称 3.时态：一般过去时 A Natural Wonder That Impressed Me (令我印象深刻的自然奇观) 写作要求 1 . 围绕一处自然奇观展开，明确说明该奇观的名称、地理位置及核心特征 (如高度、面积、独特景观等)。 结合单元主题 "探索自然"，重点描述该奇观的神奇之处及给你的感受，可适当提及人类与自然的联系。 3 . 正确使用比较级、最高级形容词 / 副词及大数表达等单元语法知识，语言生动，逻辑清晰。 字数不少于 80 词，文中不得出现真实人名、校名。 写作指导 结构设计：采用 "奇观介绍 - 细节描述 - 感受感悟" 的三段式结构，先明确奇观基本信息，再聚焦其独特性，最后升华对自然的认知。 内容要点 基础信息：明确自然奇观的类型 (如山脉、河流、沙漠、湖泊等)、位置及关键数据 (如珠穆朗玛峰高 8848.86 米、撒哈拉沙漠面积约 900 万平方公里)，体现大数表达的单元重点。 特色描述：结合感体验或科学事实，描述奇观的独特之处 (如 "峰顶常年积雪"" 河水呈黄色因携带泥沙 ""深海动物能发光")，可使用比较级 / 最高级 (如 "the highest mountain""the deepest trench")。 情感与联系：阐述奇观带来的震撼感受 (如 "感到人类的渺小"" 赞叹自然的伟大 ")，可提及人类对自然的探索 (如中国" 奋斗者 "号深潜) 或保护的重要性，呼应单元" 人与自然连接 " 的主题。 写作模板 ◆开头段Among all the natural wonders in the world,_(自然奇观名称，如 "Mount Qomolangma""the Great Barrier Reef") impresses me most. It is located in (地理位置，如 "the border of China and Nepal""northeastern Australia") and is famous as(核心称号，如 "the highest mountain in the world""the largest coral reef system"). ◆中间段This wonder is full of amazing facts. First, its_(特征 1，如 "height""area") is surprising-it reaches_(具体数据，如"8,848.86 metres high""345,000 square kilometres"). Besides, it has unique (特征 2，如 "landscape""living things"):_(具体描述，如"the peak is always covered with snow""thousands of colourful fish live in the clear water"). What's more, (人类与自然的联系，如 "Chinese climbers reached its top in 1960""scientists are working to protect it from pollution") shows our connection with nature. ◆结尾段Visiting or learning about this wonder makes me feel_(感受，如 "small but curious"). It teaches me that nature is both powerful and fragile. We should (行动倡议，如 "respect and protect natural wonders") so that future generations can also enjoy their beauty. Nature's wonders are gifts we should cherish forever. 范文 A Natural Wonder That Impressed Me Among all the natural wonders in the world, Mount Qomolangma impresses me most. It is located on the border of China and Nepal and is famous as the highest mountain in the world. Learning about it makes me feel the magic of nature deeply. This wonder is full of amazing facts. First, its height is surprising--it reaches 8,848.86 metres, and scientists say it is still growing taller Besides, it has harsh but unique conditions: temperatures can drop to -30 degrees, and climbers have to fight against thin air and changeable weather What's more, Chinese climbers made history here-they first reached the top from the northern "Death Road" in 1960 and measured its height accurately in 2020. Their spirit of exploration inspires me a lot. Visiting Mount Qomolangma is my dream. It teaches me that nature is both powerful and respectful. We should protect such wonders so that they can keep amazing the world. After all, nature's greatness lies not only in its size but also in the connections it builds with humans. Review 7.Exercises Exercises 单项选择 一、单项选择 1.( )—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 2.( )—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 （ ）3. To keep healthy, we should eat _____ fast food and do _____ exercise. A. less;more B. fewer;more C. more;less D. fewer;less （ ）4. ----“Food safety” problem is becoming _____ these days. ----I think so. The govement must do something to deal with it. A. smaller and smaller B. better and better C.nicer and nicer D. worse and worse A D 单项选择 6.Sutong Bridge over the Yangtze River is about ________ long. A．eight thousand metres B．eight-thousand-metre C．eight-thousands-metres D．eight thousands metres 7.I like all the shirts in the shop, but I only took the ____ one to save money. A．cheaper B．more expensive C．cheapest D．most expensive 5.Mike lives ________ from school of all the students, and he always takes the subway to school. A．far B．farther C．the farther D．the farthest D A C ( )8. After the heavy rain, we were surprised to find the little bird in the tree was still ______. A. live B. alive C. lovely D. lively ( )9. Zhujiajiao is an amazing ancient town and it ______ millions of tourists every year. A. attracts B. develops C. encourages D. takes ( )10. There are so many ______ of smart phones in this shop. I really don’t know which to buy. A. parts B. types C. sizes D. customers B A B 二、根据所给提示完成单词。 1. Yesterday, Jack built a beautiful house on the beach with the ________(沙子). 2. Children are very ________(好奇的)about the world around them. 3.My weekly shopping list __________(包括)milk, eggs and bread. sand curious includes 4. Every summer, many tourists come to the ________(海滨) for a vacation. 5. He tried his best to keep the tree a________, but it died in the end. coast alive 6. The scientists will ______ (潜水) into the deep sea to study the unusual creatures. 7. We still don't know the exact ______ (深度) of some parts of the ocean. 8. The ________ (deep) part of the ocean is about 11,000 metres. 9. Some deep-sea animals look _________ (usual) and even scary. 10. The _______ (bottom) of the sea is dark and quiet. dive depth deepest unusual bottom 单项选择 11. We need to write a ________（报告）about the protection of local natural wonders for the project. 12. The students designed a ________（海报）to call on people to protect the nearby forest. 13. It’s our duty to ________（传播）the idea of protecting natural wonders to more people. 14. The ________（调查）shows that most tourists support sustainable travel in national parks. 15. She gave a ________（演讲）about marine protection at the school environmental festival. report poster spread survey speech 三、用所给单词的适当形式填空。 1. The Yellow River is one of the ________ (long) rivers in China. 2. We should learn _______ (much) about the Nile River. 3. He ______ (travel) to many places and knows a lot about rivers. 4. Both the Nile and the Yellow River helped ancient ___________ (civilization) to develop. 5. ___________ (protect) rivers is our duty. longest more travels civilizations Protecting 70 6. Chen Jie is very ________ (young). She is _________ (young) than Lily. 7. He becomes __________ and __________ (happy). 8. Which is _________ (good), black or white? 9. The ________ (much) you eat, the________ (fat) you are! 10. Which one is ________________ (useful), the pencil, the eraser or the pen? young younger happier happier better more fatter the most useful 四、句型转换。 1. He is the tallest boy in his class.（改为同义句） He is ________ than ________ ________ boy in his class. 2. This is one of the most popular songs.（改为一般疑问句） ________ this one of ________ ________ popular songs? 3. The Yangtze River is longer than any other river in China.（改为最高级） The Yangtze River is ________ ________ river in China. 4. Which is the best, red, blue or green?（回答：Green is the best.） ________ is the best ________ the three. taller any other Is the most the longest Green of 5. He runs faster than the other members.（改为同义句） He runs ________ than ________ ________ member. 6. Jason is the tallest student in his class. ( 改为同义句) Jason is ________ ________ any other student in his class. taller than 7. The peacock doesn’t think he can sing as well as the nightingale. ( 改为同义句) The peacock thinks the nightingale sings _____ _______ him. better than 返回 faster any other 五、根据要求完成句子。 1. 很多国家正在研究深海。 Many countries are _________ ______ ______ ______. 2. 有些深海动物是盲的，但它们能和其他动物一样 “看见”。 Some deep-sea animals are blind, but they can “see” ______ ______ ______ others. 3. 奋斗者号在 2020 年潜入了马里亚纳海沟。 Fendouzhe ______ ______ the Mariana Trench in 2020. 4. 甚至在 11000 米深的地方都有垃圾。 There is rubbish even at ______ ______ ______. researching the deep sea as well as dived into 11,000 metres deep Thank you ! $