Unit 4 (Grammar)（形容词和副词的比较级与最高级&大数的表达）核心知识点精讲精练-2025-2026学年八年级英语下册单元全方位精练（新教材人教版）

Unit 4 The Wonders of Nature (Grammar)（形容词和副词的比较级与最高级&大数的表达）核心知识点精讲精练 【主要内容】 · 【单元核心知识点精讲精练】每个单元按照教材安排分为Section A；Grammar和Section B三个部分。 · Grammar 部分精讲本单元的重点语法，讲解部分配有随学随练。 · Grammar 部分还设置了单元语法基础练习和单元语法提升练习，丰富多样的习题帮助学生更好地学习并掌握单元语法知识。 1、 单元语法解析 形容词和副词的比较级与最高级 1. 形容词和副词的原级比较 (1) as+形容词/副词原级+as 此结构用于表示两者在某方面相同，可译为“与...一样...的/地”。 He can jump as high as his elder brother. 他可以和他哥哥跳得一样高。 (2) not +as/so+形容词/副词原级+as 此结构是上一个结构的否定形式，用于表示一方在某一方面不如另一方，可译为“不如...”。 Tiandu Peak is not as/so high as Lotus Peak. 天都峰没有莲花峰高。 (3) less+形容词或副词原级+than 表示“不如...”，与not so/as...as...结构同义。 The blue pants is less expensive than the red one. 蓝色裤子没有红色裤子贵。 [随学随练] 单项填空 (1) Su Bingtian is as ________ as the wind—he’s a great runner! A．fast B．faster C．fastest D．the fastest (2) The Amazon River is not as ________ as the Nile. A．long B．longer C．longest D．the longest (3) My brother works as ________ as me. We get up early to do morning reading every day. A．hardly B．harder C．hardest D．hard (4) Don’t just believe the advertisement. That medicine doesn’t work ________ it says. A．as better as B．as good as C．so well as D．so better as (5) Many Chinese students think Science is ________ English. A．more difficult as B．less difficult than C．much difficult than D．so difficult as 2. 形容词和副词的比较级 形容词或副词的比较级用于两者之间的比较。 (1) 形容词和副词的比较级常用结构 · ... +be+形容词比较级+than+... ...+实义动词+副词比较级+than+... The Yangtze River is longer than the Yellow River. 长江比黄河长。 The Mississippi River travels farther than the Congo River. 密西西比河流经的路程比刚果河更远。 · Which/... +其他+比较级，... or ...? 表示“...和...，哪一个更……?”。 Which square is larger, Hongxing Square or Renmin Square?红星广场和人民广场哪个广场更大？ · “比较级+and+比较级”或“more and more +形容词/副词原级”，表示“越来越……” 如果构成比较级是在词尾加-er，则用“比较级+and+比较级”结构 如果构成比较级是在词前加more，则用“more and more +形容词/副词原级”结构 It runs more and more quickly. 它流动地越来越快。 The surface of the river grows wider and wider. 河面变得越来越宽。 · “The +比较级，the +比较级”，表示“越……，就越……” 此结构中，前半部分是状语从句，后半部分是主句。如果主句使用一般将来时，从句用一般现在时表示 将来。 The more careful you are, you less mistake you will make. 你越认真，你犯的错误越少。 · 比较级+than+any+other+单数名词 / 比较级+than+the other+复数名词 这两个结构用于同一范围内的比较，表示“...比任何其他的...更...”。 Chaohu Lake is larger than any other lake in Anhui. 巢湖比安徽的其他湖都大。 · “比较级+than+any+单数名词”用于不同范围的比较。 China is larger than any country in Africa. 中国比非洲任何一个国家都大。 (2) 使用比较级的注意事项 · 前后比较的对象要一致。 The weather in Beijing is colder than Nanning.此句是错误表达，前后比较的对象是天气，所以要改为以下 表述：The weather in Beijing is colder than that in Nanning.(than后用that代替比较的对象) · 比较级前可以有单词或短语修饰，常见的有：a bit；a little；much；far；a great deal；still；even等。但比较级和very不能修饰比较级。 This book is far more interesting than that one. 这本书远比那本书有趣。 · 语境中有比较含义，都要使用比较级，即使句中没有出现than。 After having a rest, he felt much better. 休息后，他感觉好多了。(暗含休息后与休息前作比较) Please give me a larger one. 请给我一个更大的。(暗含比较，比现在的这个更大的一个) [随学随练] 单项填空 (1) My cousin is ________ than me, but she is very outgoing and has many friends. A．quiet B．quieter C．quietest D．the quietest (2) Now online games are even ________ with teenagers, but I think they’re very bad for teenagers’ health and study. A．popular B．more popular C．less popular D．the most popular (3) The number of wild animals is getting________, for their living areas are getting________. A．larger and larger;less and less B．more and more;fewer and fewer C．smaller and smaller;less and less D．smaller and smaller;fewer and fewer (4) —Who sings ________, you or Jack? —Jack, but I dance ________ than him! A．more loudly; better B．loudly; well C．more loudly; good D．loudly; better (5) Many people have been ill because of the H3N2 this winter. We should exercise every day. ________ you exercise, ________ your body will become. A．the much; the better B．the many; the healthy C．the more; the healthier D．the more; the healthy (6) Zhenjiang is smaller than ________ in Jiangsu, but I think it’s a comfortable city. A．another city B．any other city C．the other city D．any city 3. 形容词与副词的最高级 当进行三者或三者以上事物比较时，可以用形容词或副词的最高级形式来表示。 (1) 形容词和副词的最高级常用结构 · the+最高级(+n.)+比较范围 比较范围通常为in/of/among...介词短语或从句。 The Taklamakan Desert is the largest desert in China. 塔克拉玛干沙漠是中国最大的沙漠。 · one of the +最高级+可数名词复数 此结构表示“...中最...的之一”。 The Amazon River is one of the longest rivers in the world. 亚马逊河是世界上最长的河之一。 Mount Taishan is one of the most popular tourist attractions in China. 泰山是中国最受欢迎的旅游景点之一。 · Which/What/... +其他+最高级，..., ... or ... ? Which is the deepest lake, Lake Baikal, Lake Tianchi or Lake Superior? 贝加尔湖、天池和苏必利尔湖，哪一 个最深？ · the+序数词+最高级 Hainan Island is the second largest island in China. 海南岛是中国第二大岛。 (2) 比较级形式表示最高级含义 · 比较级+than+any+other+单数名词 比较级+than+the other+复数名词 这两个结构用于同一范围内的比较，表示“...比任何其他的...更...”，实际含义也就是前者是同一范围内最... 的一个，表示最高级含义。 Asia is bigger than the other continents on the earth.亚洲比地球上其他大洲都大。(亚洲是地球上最大的洲。) · 比较级+than+anything/anyone else Time is more valuable than anything else. 时间是最宝贵的。 · 否定词与比较级连用 No one is more careful than Tom. 没有人比Tom更认真了。(Tom是最认真的) I can’ agree with you more. 我完全同意你的看法。 [随学随练] 单项填空 (1) —Of all the smart home devices (设备), the smart speaker is ________ to use in daily life. —I agree. Even the elderly can operate it easily. A．easy B．easier C．the easiest D．the more easy (2) The Yellow River is ________ than the Heilongjiang River, but the Yangtze River is ________ in China. A．long; the longest B．longer; longest C．the longest; longer D．longer; the longest (3) Beijing, the capital of China, is one of ________ cities in the world. A．the most famous B．most famous C．more famous D．famous (4) Suqian isn’t so big ________ Beijing, but it’s the fourth ________ in Jiangsu province. A．like; big B．as; bigger C．like; biggest D．as; biggest (5) The Himalayas are thought as one of ________ mountain ranges in the world, where climbers face ________ challenges than in any other terrestrial environment. A．the most dangerous; the biggest B．the more dangerous; bigger C．the more dangerous; the biggest D．the most dangerous; bigger (6) —Do you like the film Operation Red Sea? —Yes. I’ve never seen ________ one before. A．a more exciting B．the most excited C．the most exciting D．a more excited 大数的读法 1. 逗号分隔 大数使用阿拉伯数字表示时，从低位数到高位数，每三位数前加一个逗点。从低位到高位，第一个逗点 前位千位；第二个逗点前为百万位，第三个逗点为十亿位。 1,000,234 一百万零二百三十四 3,200,390,240 三十二亿零三十九万零二百四十 2. 常用单位 · 英语常用单位有“百”，英文单词为hundred；“千”，英文单词为thousand；“百万”，英文单词为million；“十亿”，英文单词为billion。这些单位词都不用复数。 300读作“three hundred”；4,000读作“four thousand”；5,000,000读作“five million”。 · 英语中没有“万”这个单位，在表示“万”，“十万”时，借助“千thousand”表示。 10,000读作为“ten thousand”；30,000读作“thirty thousand”；200,000读作“two hundred thousand”。 3. and的位置 在英式英语中，hundred后通常加连词and。若读数中百位数为0,则在thousand后加 and。 美式英语中常省略and。 895 读作“eight hundred (and) ninety-five” 1,009 读作“one thousand (and) nine” 25,768 读作“twenty-five thousand, seven hundred (and) sixty-eight” [随学随练] 单项填空 (1) The number 23,450 is read as ________. A．twenty-three thousands, four hundreds and fifty B．twenty-three thousand, four hundred and fifty C．twenty-three thousands, four hundred and fifty D．twenty-three thousand, four hundreds and fifty (2) We read “7,146,000” as “________”. A．seven hundred and fourteen million, six thousand B．seven million and one hundred forty-six thousand C．seven million, one hundred forty-six thousand D．seven million, one hundred and forty-six thousand (3) About two ________ students are having the meeting in the school hall now. A．hundreds B．hundreds of C．hundred D．hundred of (4) ________ people visit the Great Wall every year. It’s one of China’s most popular places. A．Thousand of B．Two thousands C．Thousands of D．Two thousands of (5) Qomolangma is ________. It’s the highest mountain in the world. A．8,844.43 metres high B．8,844.43 metre high C．8,844.43 metre-high D．8,844.43-metres-high 2、 单元语法基础练习 1. 单项填空 (1) —Who sings ________, you or your sister?         —My sister, but I can dance as well as her. A．beautifully B．more beautifully C．beautiful D．more beautiful (2) China is almost as ________as Canada, and it is the ________ country in East Asia. A．big; bigger B．big; biggest C．bigger; biggest D．big; big (3) As one of the biggest cities in the world, Shanghai is bigger than ________ in Africa. A．any other cities B．any other city C．any city D．any cities (4) —Why does the man want to increase his car’s speed? —Because he wants to get to his destination (目的地) on time. _________ he drives, _________ he will get there. A．The faster; the earlier B．The slower; the earlier C．The faster; the later D．The slower; the later (5) The Qinghai–Xizang Railway is one of the ________ railways in the world. A．high B．higher C．highest D．more high (6) —Which river is ________, the Changjiang River or the Yellow River? —The Changjiang River. It is the third ________ river in the world. A．long, longer B．longer, longest C．longest, longest D．longer, long (7) Baoji isn’t so large ________ Xi’an. But it’s the second ________ city in Shaanxi. A．as; largest B．as; large C．like; large D．like; largest (8) —Do you know New York is one of ________ in the world? —Yes, it’s busier than ________ city in America. A．the busier city; any B．the busier cities; any C．the busiest cities; any other D．the busiest city; any other (9) —I’m proud of Guangzhou, our home town. —So am I. It is becoming ________. A．more and more beautifully B．more beautiful and beautiful C．more and more beautiful D．more beautifully and beautifully (10) —Do you know how to read the number 5,050,179?   —Yes, I can. It is ________. A．Five millions, fifty thousands, one hundred and seventy-nine. B．Five millions, fifty thousands, one hundred seventy-nine. C．Five million, fifty thousand, one hundred seventy-nine. D．Five million, fifty thousand, one hundred and seventy-nine. (11) How do you read the big number 6,325,047? A．Six million, three hundred and twenty-five thousand, forty-seven B．Six million, three hundred and twenty-five thousand and forty-seven C．Six thousand, three hundred and twenty-five million, forty-seven D．Six thousand, three hundred and twenty-five million and forty-seven (12) Luoyang is a big city with over seven ________ people, and ________ tourists from around the world travel to its places of interest every year. A．million; million of B．million; millions of C．millions of; million D．millions; million of 2. 补全句子 (1) 高原比大城市更安静。 The plateau is ________ ________ the big cities. (2) 在我心中，它比其他任何地方更好。 In my heart, it’s ________ ________ any other place. (3) 我很自豪地说我来自世界上最美的地方之一。 I’m ________ ________ say that I’m from one of ________ ________ beautiful places in the world. (4) 它因为世界最高山峰而著名。 It is famous for________ ________ ________ mountain. (5) 但是这个地区也充满了自然中最令人惊讶的颜色。 But this area is also ________ ________ the ________ ________ colours in nature. (6) 但是它仍然是中国最有名的河流之一。 But it’s still ________ ________ ________ ________ ________ ________ in China. 3. 语法选择 Waterfalls are among the most amazing natural wonders on Earth. Do you know (1) the world’s highest waterfall is? You may say that it is Niagara Falls. Niagara Falls are really (2) . But in terms of (就……而言) height, the most fantastic fall in the world is Angel Falls. It is deep in the jungle of Venezuela (委内瑞拉). Thousands of people want to have a look at Angel Falls. However, so far, few people (3) Angel Falls. The reason why few people can go there is that it is very hard (4) there. If you go by land, you have to travel for several (5) through thick jungles. If you go by plane from Caracas, (6) city on the southern coast, it will take about four hours. These fantastic falls are wonders of nature. One of (7) facts about Angel Falls is how people found it. It was named after an American pilot. (8) name was Jimmie Angel. In 1937, his plane crashed (坠落) near the top of the falls. That’s how he found it. Angel Falls drops nearly one kilometer from the tabletop mountain. The water seems to be dropping straight out of the clouds. The height of the falls is (9) great that by the time the water reaches the ground it has already turned into fog. (10) you have a chance to visit Angel Falls, you can’t miss it. I am sure you’ll never forget it if you have seen it! (1)A．what B．how C．where (2)A．beauty B．beautiful C．beautifully (3)A．see B．saw C．have seen (4)A．get B．to get C．got (5)A．week B．weeks C．week’s (6)A．a B．an C．the (7)A．interesting B．more interesting C．the most interesting (8)A．He B．Him C．His (9)A．such B．so C．very (10)A．If B．Although C．Because 3、 单元语法提升练习 1. 语法填空 在空白处填入一个适当的词，或填入括号中所给单词的正确形式。 Changing Amazon According to a new study, the Amazon Rainforest may become grassland in a few years. The Amazon Rainforest is the world’s (1) (big) rainforest. Climate change and human (2) (activity) make it “sick”. Usually, the rainforest can fix (3) (it). But now, it feels too “tired” to get better. The trees may die and the rainforest could turn into a hot, dry grassland. Why is the Amazon “sick”? The Amazon Rainforest is one of the (4) (wet) places on Earth. But since 2005, three droughts have hit the rainforest. Scientists (5) (discover) that the changing environment caused these droughts in 2008. The trees don’t have enough water to grow. What’s (6) (bad), as they become dry, they can (7) (easy) catch fire. On top of this, people cut down rainforest trees (8) wood (木材). They burn the forest to make farmland. All these actions have caused about of the rainforest to disappear. What will happen if we lose it? The Amazon Rainforest is like the lungs (肺) of our planet. If the Amazon Rainforest “dies”, there will be more CO2 and our Earth will become even (9) (hot). The Amazon Rainforest is also home to about 3 million animals (10) plants. Many of them can’t live anywhere else. They will very likely just disappear. 2. 补全对话 根据所给情景，用适当的词或句子补全对话。 Teacher: I’m going to test you now by asking a few questions. First, (1) ? Boy 1: Qomolangma! It’s higher than any other mountain in the world. Teacher: That’s right. (2) ? Boy 2: It’s 8,844.43 meters high. Teacher: Very good. And who can tell me what the Sahara is? Girl 1: (3) . Teacher: You’re all so smart! Now, for the last question, (4) ? Girl 2: I know! The Nile is the longest river in the world. Girl3: And the Amazon is (5) . Teacher: It seems that you know the answers to all my questions. Good job! 3. 翻译短篇 大自然是伟大的。森林比城市更安静。空气也更清新。山是我见过最高的东西。森林是动物们最安全的家。但是现在，空气不那么干净了。我们需要种更多的树。让我们爱护我们的地球。它是我们所有人最好的家。_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 学科网（北京）股份有限公司 $ Unit 4 The Wonders of Nature (Grammar)（形容词和副词的比较级与最高级&大数的表达）核心知识点精讲精练 【主要内容】 · 【单元核心知识点精讲精练】每个单元按照教材安排分为Section A；Grammar和Section B三个部分。 · Grammar 部分精讲本单元的重点语法，讲解部分配有随学随练。 · Grammar 部分还设置了单元语法基础练习和单元语法提升练习，丰富多样的习题帮助学生更好地学习并掌握单元语法知识。 1、 单元语法解析 形容词和副词的比较级与最高级 1. 形容词和副词的原级比较 (1) as+形容词/副词原级+as 此结构用于表示两者在某方面相同，可译为“与...一样...的/地”。 He can jump as high as his elder brother. 他可以和他哥哥跳得一样高。 (2) not +as/so+形容词/副词原级+as 此结构是上一个结构的否定形式，用于表示一方在某一方面不如另一方，可译为“不如...”。 Tiandu Peak is not as/so high as Lotus Peak. 天都峰没有莲花峰高。 (3) less+形容词或副词原级+than 表示“不如...”，与not so/as...as...结构同义。 The blue pants is less expensive than the red one. 蓝色裤子没有红色裤子贵。 [随学随练] 单项填空 (1) Su Bingtian is as ________ as the wind—he’s a great runner! A．fast B．faster C．fastest D．the fastest 【答案】A 【详解】句意：苏炳添和风一样快——他是一位伟大的跑步运动员！ fast快的；faster更快的；fastest最快的；the fastest最快的。固定搭配as+形容词原级+as表示“和……一样……”，中间需用形容词原级fast。 (2) The Amazon River is not as ________ as the Nile. A．long B．longer C．longest D．the longest 【答案】A 【详解】句意：亚马逊河没有尼罗河那么长。 考查形容词原级比较。long长的，形容词原级；longer更长的，形容词比较级；longest最长的，形容词最高级；the longest最长的，形容词最高级。根据“The Amazon River is not as…as the Nile.”可知，not as...as“不如……”，中间应使用形容词原级。故选A。 (3) My brother works as ________ as me. We get up early to do morning reading every day. A．hardly B．harder C．hardest D．hard 【答案】D 【详解】句意：我哥哥和我一样努力。我们每天早起做晨读。 考查副词原级比较结构“as...as...”。hardly几乎不；harder更努力地，比较级；hardest最努力地，最高级；hard努力地。根据“as...as”结构可知，表示同级比较，中间应用形容词或副词的原级。此处修饰动词works，应用副词hard。故选D。 (4) Don’t just believe the advertisement. That medicine doesn’t work ________ it says. A．as better as B．as good as C．so well as D．so better as 【答案】C 【详解】句意：不要仅仅相信广告，那种药并不像它所说的那样有效。 考查副词原级比较。as better as结构错误；as good as和……一样好；so well as不如……那样好；so better as结构错误。“as...as”和“so...as”中间用形容词或副词的原级，所以A选项“as better as”和D选项“so better as”结构错误，可排除；“work”在这里是动词，意为“起作用，有效”，需要用副词来修饰，“good”是形容词，“well”是副词，所以应该用“so well as”。故选C。 (5) Many Chinese students think Science is ________ English. A．more difficult as B．less difficult than C．much difficult than D．so difficult as 【答案】B 【详解】句意：许多中国学生认为科学不如英语难。 考查形容词比较级的用法。more difficult as搭配错误；less difficult than不如……难；much difficult than搭配错误；so difficult as和……一样难，用于否定句。根据“Many Chinese students think Science is...English.”可知，此处表达许多中国学生认为科学不如英语难。故选B。 2. 形容词和副词的比较级 形容词或副词的比较级用于两者之间的比较。 (1) 形容词和副词的比较级常用结构 · ... +be+形容词比较级+than+... ...+实义动词+副词比较级+than+... The Yangtze River is longer than the Yellow River. 长江比黄河长。 The Mississippi River travels farther than the Congo River. 密西西比河流经的路程比刚果河更远。 · Which/... +其他+比较级，... or ...? 表示“...和...，哪一个更……?”。 Which square is larger, Hongxing Square or Renmin Square?红星广场和人民广场哪个广场更大？ · “比较级+and+比较级”或“more and more +形容词/副词原级”，表示“越来越……” 如果构成比较级是在词尾加-er，则用“比较级+and+比较级”结构 如果构成比较级是在词前加more，则用“more and more +形容词/副词原级”结构 It runs more and more quickly. 它流动地越来越快。 The surface of the river grows wider and wider. 河面变得越来越宽。 · “The +比较级，the +比较级”，表示“越……，就越……” 此结构中，前半部分是状语从句，后半部分是主句。如果主句使用一般将来时，从句用一般现在时表示 将来。 The more careful you are, you less mistake you will make. 你越认真，你犯的错误越少。 · 比较级+than+any+other+单数名词 / 比较级+than+the other+复数名词 这两个结构用于同一范围内的比较，表示“...比任何其他的...更...”。 Chaohu Lake is larger than any other lake in Anhui. 巢湖比安徽的其他湖都大。 · “比较级+than+any+单数名词”用于不同范围的比较。 China is larger than any country in Africa. 中国比非洲任何一个国家都大。 (2) 使用比较级的注意事项 · 前后比较的对象要一致。 The weather in Beijing is colder than Nanning.此句是错误表达，前后比较的对象是天气，所以要改为以下 表述：The weather in Beijing is colder than that in Nanning.(than后用that代替比较的对象) · 比较级前可以有单词或短语修饰，常见的有：a bit；a little；much；far；a great deal；still；even等。但比较级和very不能修饰比较级。 This book is far more interesting than that one. 这本书远比那本书有趣。 · 语境中有比较含义，都要使用比较级，即使句中没有出现than。 After having a rest, he felt much better. 休息后，他感觉好多了。(暗含休息后与休息前作比较) Please give me a larger one. 请给我一个更大的。(暗含比较，比现在的这个更大的一个) [随学随练] 单项填空 (1) My cousin is ________ than me, but she is very outgoing and has many friends. A．quiet B．quieter C．quietest D．the quietest 【答案】B 【详解】句意：我表姐比我安静，但她非常外向，有很多朋友。 根据“than me”可知，有比较级标志词than，应用形容词比较级，应填quieter。 (2) Now online games are even ________ with teenagers, but I think they’re very bad for teenagers’ health and study. A．popular B．more popular C．less popular D．the most popular 【答案】B 【详解】句意：现在网络游戏在青少年中甚至更受欢迎，但我认为它们对青少年的健康和学习非常有害。 句中even是程度副词，常用来修饰比较级，表示程度加深，结合语境，more popular符合要求。 (3) The number of wild animals is getting________, for their living areas are getting________. A．larger and larger;less and less B．more and more;fewer and fewer C．smaller and smaller;less and less D．smaller and smaller;fewer and fewer 【答案】D 【详解】句意：野生动物的数量正变得越来越少，因为它们的生存区域正变得越来越少。 larger and larger越来越大，less and less 越来越少；more and more越来越多，fewer and fewer越来越少；smaller and smaller越来越小。the number of wild animals野生动物的数量，描述“数量”的大小用smaller and smaller或larger and larger，不用more and more。 living areas生存区域，是可数名词复数，描述“区域数量变少”用fewer and fewer；less and less用于不可数名词。 (4) —Who sings ________, you or Jack? —Jack, but I dance ________ than him! A．more loudly; better B．loudly; well C．more loudly; good D．loudly; better 【答案】A 【详解】句意：——谁唱得更大声，你还是杰克？——杰克，但我跳舞跳得比他好！ 考查副词比较级。根据“you or Jack”及“than”可知两处都是两者作比较，都用副词比较级。故选A。 (5) Many people have been ill because of the H3N2 this winter. We should exercise every day. ________ you exercise, ________ your body will become. A．the much; the better B．the many; the healthy C．the more; the healthier D．the more; the healthy 【答案】C 【详解】句意：今年冬天许多人因H3N2病毒生病。我们应该每天锻炼。你锻炼得越多，你的身体就会变得越健康。 考查“the+比较级，the+比较级”固定句型，表示“越……，越……”。the much; the better（much不是比较级，better是good/well的比较级）；the many; the healthy（many不是比较级，healthy是原级）；the more; the healthier（more是much/many的比较级，healthier是healthy的比较级）；the more; the healthy（more是比较级，但healthy未用比较级）。根据句意，前半句需用much的比较级more，后半句需用healthy的比较级healthier。故选C。 (6) Zhenjiang is smaller than ________ in Jiangsu, but I think it’s a comfortable city. A．another city B．any other city C．the other city D．any city 【答案】B 【详解】句意：镇江比江苏的任何其他城市都小，但我认为它是一个舒适的城市。 考查比较级中any other的固定用法。another city另一个城市；any other city任何其他城市；the other city另一个城市 (两者中的另一个)；any city任何城市。根据“Zhenjiang is smaller than…in Jiangsu”可知，镇江属于江苏，在江苏范围内比较，要用any other city，表示“任何其他城市”。故选B。 3. 形容词与副词的最高级 当进行三者或三者以上事物比较时，可以用形容词或副词的最高级形式来表示。 (1) 形容词和副词的最高级常用结构 · the+最高级(+n.)+比较范围 比较范围通常为in/of/among...介词短语或从句。 The Taklamakan Desert is the largest desert in China. 塔克拉玛干沙漠是中国最大的沙漠。 · one of the +最高级+可数名词复数 此结构表示“...中最...的之一”。 The Amazon River is one of the longest rivers in the world. 亚马逊河是世界上最长的河之一。 Mount Taishan is one of the most popular tourist attractions in China. 泰山是中国最受欢迎的旅游景点之一。 · Which/What/... +其他+最高级，..., ... or ... ? Which is the deepest lake, Lake Baikal, Lake Tianchi or Lake Superior? 贝加尔湖、天池和苏必利尔湖，哪一 个最深？ · the+序数词+最高级 Hainan Island is the second largest island in China. 海南岛是中国第二大岛。 (2) 比较级形式表示最高级含义 · 比较级+than+any+other+单数名词 比较级+than+the other+复数名词 这两个结构用于同一范围内的比较，表示“...比任何其他的...更...”，实际含义也就是前者是同一范围内最... 的一个，表示最高级含义。 Asia is bigger than the other continents on the earth.亚洲比地球上其他大洲都大。(亚洲是地球上最大的洲。) · 比较级+than+anything/anyone else Time is more valuable than anything else. 时间是最宝贵的。 · 否定词与比较级连用 No one is more careful than Tom. 没有人比Tom更认真了。(Tom是最认真的) I can’ agree with you more. 我完全同意你的看法。 [随学随练] 单项填空 (1) —Of all the smart home devices (设备), the smart speaker is ________ to use in daily life. —I agree. Even the elderly can operate it easily. A．easy B．easier C．the easiest D．the more easy 【答案】C 【详解】句意：——在所有的智能家居设备中，智能音箱在日常生活中是最容易使用的。——我同意。即使是老年人也能轻松操作它。 根据“Of all the smart home devices”可知，此处是三者以上的比较，应该用最高级形式，easy的最高级形式是the easiest。应填the easiest。 (2) The Yellow River is ________ than the Heilongjiang River, but the Yangtze River is ________ in China. A．long; the longest B．longer; longest C．the longest; longer D．longer; the longest 【答案】D 【详解】句意：黄河比黑龙江长，但长江是中国最长的河流。 考查形容词比较级和最高级。long长的；the longest最长的，最高级；longer更长的，比较级；longest最长的，最高级。根据“than”以及选项可知，第一空需用比较级形式longer；根据“in China”以及选项可知，是指“在中国最长”，第二空需用最高级形式，前面加定冠词the。故选D。 (3) Beijing, the capital of China, is one of ________ cities in the world. A．the most famous B．most famous C．more famous D．famous 【答案】A 【详解】句意：北京，中国的首都，是世界上最著名的城市之一。 the most famous最著名的(最高级)；most famous语法错误；more famous更著名的(比较级)；famous著名的。“one of+the+形容词最高级+名词复数”是固定结构，表示“最……的……之一”。在该句中“cities”是名词复数，“famous”是形容词，要表达“世界上最著名的城市之一”，“famous”需用最高级形式“the most famous”。 (4) Suqian isn’t so big ________ Beijing, but it’s the fourth ________ in Jiangsu province. A．like; big B．as; bigger C．like; biggest D．as; biggest 【答案】D 【详解】句意：宿迁不如北京大，但它是江苏省第四大的城市。 考查形容词原级和最高级。 “not so...as...”意为“不如……”，为固定表达；“the+序数词+形容词最高级”表示“第几最……的”，“big”的最高级是“biggest”。故选D。 (5) The Himalayas are thought as one of ________ mountain ranges in the world, where climbers face ________ challenges than in any other terrestrial environment. A．the most dangerous; the biggest B．the more dangerous; bigger C．the more dangerous; the biggest D．the most dangerous; bigger 【答案】D 【详解】句意：喜马拉雅山脉被认为是世界上最危险的山脉之一，在那里登山者面临的挑战比在任何其他陆地环境中都更大。 考查形容词用法。“one of+the+形容词最高级+复数名词”是固定结构，表示“最……之一”，这里说喜马拉雅山脉是世界上最危险的山脉之一，所以要用dangerous的最高级形式the most dangerous；第二句中有than，表明是两者之间的比较，需要用形容词比较级。big的比较级是bigger。故选D。 (6) —Do you like the film Operation Red Sea? —Yes. I’ve never seen ________ one before. A．a more exciting B．the most excited C．the most exciting D．a more excited 【答案】A 【详解】句意：——你喜欢电影《红海行动》吗？——是的。我以前从未看过比这更令人兴奋的电影。 考查形容词比较级和形容词辨析。a more exciting一个更令人兴奋的；the most excited最兴奋的；the most exciting最令人兴奋的；a more excited一个更兴奋的。根据“I’ve never seen...one before”可知，此处表示“从未看过比这更令人兴奋的电影”，用比较级表示最高级含义，且修饰电影应用exciting。故选A。 大数的读法 1. 逗号分隔 大数使用阿拉伯数字表示时，从低位数到高位数，每三位数前加一个逗点。从低位到高位，第一个逗点 前位千位；第二个逗点前为百万位，第三个逗点为十亿位。 1,000,234 一百万零二百三十四 3,200,390,240 三十二亿零三十九万零二百四十 2. 常用单位 · 英语常用单位有“百”，英文单词为hundred；“千”，英文单词为thousand；“百万”，英文单词为million；“十亿”，英文单词为billion。这些单位词都不用复数。 300读作“three hundred”；4,000读作“four thousand”；5,000,000读作“five million”。 · 英语中没有“万”这个单位，在表示“万”，“十万”时，借助“千thousand”表示。 10,000读作为“ten thousand”；30,000读作“thirty thousand”；200,000读作“two hundred thousand”。 3. and的位置 在英式英语中，hundred后通常加连词and。若读数中百位数为0,则在thousand后加 and。 美式英语中常省略and。 895 读作“eight hundred (and) ninety-five” 1,009 读作“one thousand (and) nine” 25,768 读作“twenty-five thousand, seven hundred (and) sixty-eight” [随学随练] 单项填空 (1) The number 23,450 is read as ________. A．twenty-three thousands, four hundreds and fifty B．twenty-three thousand, four hundred and fifty C．twenty-three thousands, four hundred and fifty D．twenty-three thousand, four hundreds and fifty 【答案】B 【详解】句意：数字23,450读作两万三千四百五十。 hundred, thousand等数词前有具体数字时用单数形式。 (2) We read “7,146,000” as “________”. A．seven hundred and fourteen million, six thousand B．seven million and one hundred forty-six thousand C．seven million, one hundred forty-six thousand D．seven million, one hundred and forty-six thousand 【答案】D 【详解】句意：我们把"7,146,000"读作“七百一十四万六千”。 英语数字从右向左每三位一节，百位和十位之间用 and 相连，十位和个位之间加连字符。7位于百万位，146位于千位，正确读法为seven million, one hundred and forty-six thousand。故选 D。 (3) About two ________ students are having the meeting in the school hall now. A．hundreds B．hundreds of C．hundred D．hundred of 【答案】C 【详解】句意：现在大约200名学生正在学校礼堂开会。 hundreds百，复数；hundreds of数百；hundred百，单数；hundred of表达错误。空格前有基数词two，hundred不用复数，且hundreds of前不能有具体数字，故应填hundred。 (4) ________ people visit the Great Wall every year. It’s one of China’s most popular places. A．Thousand of B．Two thousands C．Thousands of D．Two thousands of 【答案】C 【详解】句意：每年有成千上万的人参观长城。它是中国最受欢迎的地方之一。 Thousand of语法错误；Two thousands语法错误；Thousands of成千上万的；Two thousands of语法错误。根据“…people visit the Great Wall every year.”可知，thousand前有具体数字时用单数形式，不加of；表示不确定数目“成千上万”时用复数形式加of，即thousands of。本题表示概数，应填Thousands of。 (5) Qomolangma is ________. It’s the highest mountain in the world. A．8,844.43 metres high B．8,844.43 metre high C．8,844.43 metre-high D．8,844.43-metres-high 【答案】A 【详解】句意：珠穆朗玛峰高8844.43米。它是世界上最高的山。 考查数词。此处表示珠穆朗玛峰有8844.43米高。高度的表达为：基数词 + 单位词 + 形容词，故排除C和D；8,844.43后面需接名词复数，故单位词metre用复数形式。 故选A。 2、 单元语法基础练习 1. 单项填空 (1) —Who sings ________, you or your sister?         —My sister, but I can dance as well as her. A．beautifully B．more beautifully C．beautiful D．more beautiful 【答案】B 【详解】句意：——谁唱得更好，你还是你妹妹？——我妹妹，但我舞跳得和她一样好。 考查副词比较级。beautifully优美地，副词；beautiful优美的，形容词。此空修饰动词sing，应填副词，根据“you or your sister”可知，两者之间的比较用比较级，故选B。 (2) China is almost as ________as Canada, and it is the ________ country in East Asia. A．big; bigger B．big; biggest C．bigger; biggest D．big; big 【答案】B 【详解】句意：中国几乎和加拿大一样大，并且是最大的东亚国家。 考查形容词原级和最高级。big大的，原级；bigger比较大的，比较级；biggest最大的，最高级。第一个空，空前的as...as表示“和……一样”，中间用形容词原级；第二个空，根据“in Asia”可知是在东亚范围内比较，应用最高级biggest。故选B。 (3) As one of the biggest cities in the world, Shanghai is bigger than ________ in Africa. A．any other cities B．any other city C．any city D．any cities 【答案】C 【详解】句意：作为世界上最大的城市之一，上海比非洲的任何城市都大。 考查比较级用法。由于上海不属于非洲，比较时无需使用“other”排除自身，直接使用“any city”表示“任何城市”即可。A项和B项中的“other”表示排除自身，但上海不在非洲，故错误；D项“any cities”语法上不标准，通常用单数“any city”。故选C。 (4) —Why does the man want to increase his car’s speed? —Because he wants to get to his destination (目的地) on time. _________ he drives, _________ he will get there. A．The faster; the earlier B．The slower; the earlier C．The faster; the later D．The slower; the later 【答案】A 【详解】句意：——那个男士为什么想要提高车速? ——因为他想准时到达目的地。他开得越快，就越早到达那里。 考查比较级。根据本题语境可知，他开车开得越快，就越早到达目的地。结合句子结构可知使用“the+比较级，the+比较级”的句式，表示“越……越……”。The faster和the earlier符合题意。故选A。 (5) The Qinghai–Xizang Railway is one of the ________ railways in the world. A．high B．higher C．highest D．more high 【答案】C 【详解】句意：青藏铁路是世界上最高的铁路之一。 high高的；higher更高的；highest最高的；more high错误形式。根据固定结构“one of the + 形容词最高级 + 名词复数”表示“最……之一”，可知此处应用最高级highest。 (6) —Which river is ________, the Changjiang River or the Yellow River? —The Changjiang River. It is the third ________ river in the world. A．long, longer B．longer, longest C．longest, longest D．longer, long 【答案】B 【详解】句意：——长江和黄河哪条河更长？——长江。它是世界上第三长的河流。 考查形容词比较级和最高级。第一句根据“the Changjiang River or the Yellow River”可知是两者比较，应用比较级longer；第二句根据“in the world”可知在全世界范围内比较，且“the third”修饰最高级，应用最高级longest。故选B。 (7) Baoji isn’t so large ________ Xi’an. But it’s the second ________ city in Shaanxi. A．as; largest B．as; large C．like; large D．like; largest 【答案】A 【详解】句意：宝鸡不像西安那么大，但它是陕西第二大城市。 考查固定搭配和形容词最高级用法。第一个空是固定搭配“not so...as”表示“不像……一样”，故用as，不用like；第二个空“序数词+最高级”表示“第几最……”，故用largest。故选A。 (8) —Do you know New York is one of ________ in the world? —Yes, it’s busier than ________ city in America. A．the busier city; any B．the busier cities; any C．the busiest cities; any other D．the busiest city; any other 【答案】C 【详解】句意：——你知道纽约是世界上最繁忙的城市之一吗？ ——是的，它比美国其他任何城市都要繁忙。 考查形容词最高级以及比较级。根据题干可知，第一处考查“one of the+形容词最高级+复数名词”结构，意为“最……之一”，故第一空应填the biggest cities，排除A、B和D选项；第二空应用“比较级+ than + any other +单数名词”结构。故选C。 (9) —I’m proud of Guangzhou, our home town. —So am I. It is becoming ________. A．more and more beautifully B．more beautiful and beautiful C．more and more beautiful D．more beautifully and beautifully 【答案】C 【详解】句意：——我为我的家乡广州感到骄傲。——我也是。它正变得越来越美丽。 考查比较级的用法。beautifully漂亮地，副词；beautiful漂亮的，形容词。根据“is becoming”可知，空处用形容词作表语，排除A、D选项；比较级+and+比较级“越来越……”，beautiful是多音节单词，因此用more and more beautiful表示“越来越美丽”。故选C。 (10) —Do you know how to read the number 5,050,179?   —Yes, I can. It is ________. A．Five millions, fifty thousands, one hundred and seventy-nine. B．Five millions, fifty thousands, one hundred seventy-nine. C．Five million, fifty thousand, one hundred seventy-nine. D．Five million, fifty thousand, one hundred and seventy-nine. 【答案】D 【详解】句意：——你知道数字5,050,179怎么读吗？——是的，我知道。它是五百零五万零一百七十九。 在英语中，当“hundred”、“thousand”、“million”等词前面有具体数字修饰时，它们用单数形式，且“百”和“十”之间一般用and连接，所以正确答案是Five million, fifty thousand, one hundred and seventy-nine.。 (11) How do you read the big number 6,325,047? A．Six million, three hundred and twenty-five thousand, forty-seven B．Six million, three hundred and twenty-five thousand and forty-seven C．Six thousand, three hundred and twenty-five million, forty-seven D．Six thousand, three hundred and twenty-five million and forty-seven 【答案】B 【详解】在英语中，数字的读法是从高位到低位，每三位为一个单位。从左到右，第一个逗号前是6，读作six million；第二个逗号前是325，读作three hundred and twenty-five thousand；最后三位数047，百位为0，在英式英语中，当末尾不足一百时，应在“thousand”后加and。 (12) Luoyang is a big city with over seven ________ people, and ________ tourists from around the world travel to its places of interest every year. A．million; million of B．million; millions of C．millions of; million D．millions; million of 【答案】B 【详解】句意：洛阳是一个拥有超过七百万人口的大城市，每年有来自世界各地的数百万游客前往其名胜古迹。 考查million的用法。million“百万”，表示具体数字时，用单数形式；表示概数时，用复数形式，且与of连用。根据“seven”可知，第一空表示具体数字，用million；根据“and ... tourists”可知，第二空表示概数，用millions of。故选B。 2. 补全句子 (1) 高原比大城市更安静。 The plateau is ________ ________ the big cities. 【答案】 quieter than (2) 在我心中，它比其他任何地方更好。 In my heart, it’s ________ ________ any other place. 【答案】 better than (3) 我很自豪地说我来自世界上最美的地方之一。 I’m ________ ________ say that I’m from one of ________ ________ beautiful places in the world. 【答案】 proud to the most (4) 它因为世界最高山峰而著名。 It is famous for________ ________ ________ mountain. 【答案】 the world’s highest (5) 但是这个地区也充满了自然中最令人惊讶的颜色。 But this area is also ________ ________ the ________ ________ colours in nature. 【答案】 full of most amazing (6) 但是它仍然是中国最有名的河流之一。 But it’s still ________ ________ ________ ________ ________ ________ in China. 【答案】 one of the most famous rivers 3. 语法选择 Waterfalls are among the most amazing natural wonders on Earth. Do you know (1) the world’s highest waterfall is? You may say that it is Niagara Falls. Niagara Falls are really (2) . But in terms of (就……而言) height, the most fantastic fall in the world is Angel Falls. It is deep in the jungle of Venezuela (委内瑞拉). Thousands of people want to have a look at Angel Falls. However, so far, few people (3) Angel Falls. The reason why few people can go there is that it is very hard (4) there. If you go by land, you have to travel for several (5) through thick jungles. If you go by plane from Caracas, (6) city on the southern coast, it will take about four hours. These fantastic falls are wonders of nature. One of (7) facts about Angel Falls is how people found it. It was named after an American pilot. (8) name was Jimmie Angel. In 1937, his plane crashed (坠落) near the top of the falls. That’s how he found it. Angel Falls drops nearly one kilometer from the tabletop mountain. The water seems to be dropping straight out of the clouds. The height of the falls is (9) great that by the time the water reaches the ground it has already turned into fog. (10) you have a chance to visit Angel Falls, you can’t miss it. I am sure you’ll never forget it if you have seen it! (1)A．what B．how C．where (2)A．beauty B．beautiful C．beautifully (3)A．see B．saw C．have seen (4)A．get B．to get C．got (5)A．week B．weeks C．week’s (6)A．a B．an C．the (7)A．interesting B．more interesting C．the most interesting (8)A．He B．Him C．His (9)A．such B．so C．very (10)A．If B．Although C．Because 【答案】 (1)A (2)B (3)C (4)B (5)B (6)A (7)C (8)C (9)B (10)A 【导语】本文主要介绍了世界上最高的瀑布——安赫尔瀑布。 (1)句意：你知道世界上最高的瀑布是什么吗？ what什么；how怎样；where在哪里。根据“the world’s highest waterfall is”可知，此处在询问世界上最高的瀑布是什么，所以用what提问。故选A。 (2)句意：尼亚加拉瀑布真的很美。 beauty美丽，名词；beautiful美丽的，形容词；beautifully美丽地，副词。根据“Niagara Falls are really...”可知，此处需要用形容词作表语来描述尼亚加拉瀑布的特点。beautiful“美丽的”符合句意。故选B。 (3)句意：然而，到目前为止，很少有人见过安赫尔瀑布。 see看见，动词原形；saw看见，过去式；have seen看见，现在完成时。根据“so far”可知，此处需要用现在完成时表示从过去某一时间点开始一直持续到现在的动作或状态。have seen“已经看见”符合句意。故选C。 (4)句意：很少有人能去那里的原因是去那里很难。 get到达，动词原形；to get到达，不定式；got到达，过去式。根据“it is very hard...there”可知，此处需要用不定式作形容词hard的后置定语，表示“到达那里很难”。故选B。 (5)句意：如果你走陆路，你必须穿过茂密的丛林旅行几周。 week周，名词单数；weeks周，名词复数；week’s周的，名词所有格。根据“several...through thick jungles”可知，此处需要用名词复数表示“几周的时间”。故选B。 (6)句意：如果你从南部海岸的城市加拉加斯乘飞机去，大约需要四个小时。 a一个，用于辅音音素开头的单词前；an一个，用于元音音素开头的单词前；the这个，特指。根据“city on the southern coast”可知，此处表示泛指“一个城市”，city以辅音音素开头，所以用不定冠词a。故选A。 (7)句意：关于安赫尔瀑布最有趣的事实之一是人们是如何发现它的。 interesting有趣的，形容词原级；more interesting更有趣的，形容词比较级；the most interesting最有趣的，形容词最高级。根据“One of...facts about Angel Falls”可知，此处需要用形容词最高级表示“最有趣的事实之一”。the most interesting“最有趣的”，one of +最高级+名词复数结构。故选C。 (8)句意：他的名字叫吉米·安赫尔。 He他，主格；Him他，宾格；His他的，物主代词。根据“name was Jimmie Angel”可知，此处需要用物主代词修饰名词name，表示“他的名字”。故选C。 (9)句意：瀑布的高度如此之大，以至于当水到达地面时，已经变成了雾。 such如此，修饰名词；so如此，修饰形容词或副词；very非常，修饰形容词或副词。根据“The height of the falls is...great that”可知，此处需要用so修饰形容词great，与that构成“so...that...”结构，表示“如此……以至于……”。故选B。 (10)句意：如果你有机会参观安赫尔瀑布，你不能错过它。 If如果；Although虽然；Because因为。根据“you have a chance to visit Angel Falls, you can’t miss it”可知，此处表示假设条件，即“如果你有机会参观安赫尔瀑布”。If“如果”符合句意。故选A。 3、 单元语法提升练习 1. 语法填空 在空白处填入一个适当的词，或填入括号中所给单词的正确形式。 Changing Amazon According to a new study, the Amazon Rainforest may become grassland in a few years. The Amazon Rainforest is the world’s (1) (big) rainforest. Climate change and human (2) (activity) make it “sick”. Usually, the rainforest can fix (3) (it). But now, it feels too “tired” to get better. The trees may die and the rainforest could turn into a hot, dry grassland. Why is the Amazon “sick”? The Amazon Rainforest is one of the (4) (wet) places on Earth. But since 2005, three droughts have hit the rainforest. Scientists (5) (discover) that the changing environment caused these droughts in 2008. The trees don’t have enough water to grow. What’s (6) (bad), as they become dry, they can (7) (easy) catch fire. On top of this, people cut down rainforest trees (8) wood (木材). They burn the forest to make farmland. All these actions have caused about of the rainforest to disappear. What will happen if we lose it? The Amazon Rainforest is like the lungs (肺) of our planet. If the Amazon Rainforest “dies”, there will be more CO2 and our Earth will become even (9) (hot). The Amazon Rainforest is also home to about 3 million animals (10) plants. Many of them can’t live anywhere else. They will very likely just disappear. 【答案】 (1)biggest (2)activities (3)itself (4)wettest (5)discovered (6)worse (7)easily (8)for (9)hotter (10)and 【导语】本文讲述了根据一项新的研究，由于气候变化和人类活动，亚马逊雨林可能在未来几年变成草原以及如果亚马逊雨林“消失”将造成的后果。 (1)句意：亚马逊雨林是世界上最大的雨林。根据“the world’s”可知，此处应用形容词的最高级形式，big的最高级是biggest。 (2)句意：气候变化和人类活动让它“生病”了。activity“活动”，是可数名词，根据语境可知，此处应用复数形式activities，表示泛指。 (3)句意：通常，雨林可以自我修复。此处指雨林自我修复，应用反身代词itself“它自己”。 (4)句意：亚马逊雨林是地球上最潮湿的地方之一。one of the+形容词最高级+名词复数，表示“最……之一”，wet的最高级是wettest。 (5)句意：科学家们发现是环境的变化导致了这些干旱。根据语境可知，该句陈述的是过去发生的事情，时态为一般过去时，动词用过去式discovered“发现”。 (6)句意：更糟糕的是，当它们变干时，很容易着火。what’s worse“更糟糕的是”，固定搭配。 (7)句意：更糟糕的是，当它们变干时，很容易着火。此处修饰动词“catch fire”，应用副词easily“容易地”。 (8)句意：除此之外，人们砍伐雨林树木来获取木材。砍伐雨林树木的目的是获取木材，cut down...for...“为了……而砍伐……”，固定搭配。 (9)句意：如果亚马逊雨林“死亡”，将会有更多的二氧化碳，我们的地球将会变得更热。even修饰比较级，hot的比较级是hotter“更热的”。 (10)句意：亚马逊雨林也是大约300万种动植物的家园。animals和plants是并列关系，应用and连接。 2. 补全对话 根据所给情景，用适当的词或句子补全对话。 Teacher: I’m going to test you now by asking a few questions. First, (1) ? Boy 1: Qomolangma! It’s higher than any other mountain in the world. Teacher: That’s right. (2) ? Boy 2: It’s 8,844.43 meters high. Teacher: Very good. And who can tell me what the Sahara is? Girl 1: (3) . Teacher: You’re all so smart! Now, for the last question, (4) ? Girl 2: I know! The Nile is the longest river in the world. Girl3: And the Amazon is (5) . Teacher: It seems that you know the answers to all my questions. Good job! 【答案】(1)what’s the highest mountain in the world (2)How high is it (3)It’s the largest desert in the world (4)what’s the longest river in the world (5)the second longest river in the world 【导语】本文是老师和学生之间关于地理知识问答的对话。 (1)根据答语“Qomolangma! It’s higher than any other mountain in the world.”可知，此处应是提问世界上最高的山是什么。故填what’s the highest mountain in the world。 (2)根据答语“It’s 8,844.43 meters high.”可知，此处应是提问山的高度。故填How high is it。 (3)根据“And who can tell me what the Sahara is?”可知，此处是回答撒哈拉是什么。故填It’s the largest desert in the world。 (4)根据“The Nile is the longest river in the world.”可知，此处应是提问哪条河是世界上最长的。故填what’s the longest river in the world。 (5)根据“And the Amazon is...”及常识可知，亚马逊河是世界第二大长河。故填the second longest river in the world。 3. 翻译短篇 大自然是伟大的。森林比城市更安静。空气也更清新。山是我见过最高的东西。森林是动物们最安全的家。但是现在，空气不那么干净了。我们需要种更多的树。让我们爱护我们的地球。它是我们所有人最好的家。________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ____________________________________________________________________________________________________________________________________________________________________________________________【答案】Nature is great. The forest is quieter than the city. The air is cleaner too. The mountain is the tallest thing I have ever seen. The forest is the safest home for animals. But now, the air is not so clean. We need to plant more trees. Let’s love our Earth. It is the best home for all of us. 学科网（北京）股份有限公司 $