Unit 6 Hitting the road 单元核心知识点精讲精练2(Grammar)-2025-2026学年七年级英语下册新教材外研版

本初中英语讲义聚焦形容词与副词比较等级核心语法，系统梳理平级比较（“as...as...”“not as/so...as...”结构及注意事项）、比较级（两者比较）、最高级（三者及以上比较）的定义与用法，构建从基础概念到延伸表达（如as soon as等固定搭配）的学习支架。 该资料以多样化练习为特色，随学随练即时巩固语法点，基础练习（单项填空、句子改写）夯实语言能力，提升练习（翻译、语法填空、完形填空）通过对比分析（如“not as...as...”与“less...than”转换）培养思维品质，助力教师课中高效教学，学生课后自主查漏补缺，提升学习能力。

Unit 6 Hitting the road 核心知识点精讲精练 2 (Grammar) 【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Understanding ideas；Grammar和Developing ideas三个部分。 · Grammar 精讲本单元的重点语法，讲解部分配有随学随练。 · 本资料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英语语法知识。 1、 单元重点语法解析 平级的比较 1. 平级，比较级与最高级 (1) 比较级 当表示“...比...更...”时，要用形容词或副词的比较级，常用于两者间的比较。 如：He runs faster than me. 他比我跑得更快。 (2) 最高级 当表示“最...”使，要用形容词或副词的最高级，常用于三者或三者以上之间的比较。 如：Jim jumps the highest in his class. 吉姆是他们班跳的最高的。 (3) 平级 当表示“和...一样...”时，可以用平级比较。 如：He is as tall as his brother. 他和他哥哥一样高。 [随学随练] 单项填空 1．The weather in Harbin is much ________ than that in Beijing in winter. A．cold B．colder C．coldest D．the coldest 2．These days, watching short videos on phones is ________ among the new ways for young people to relax. A．popular B．more popular C．most popular D．the most popular 3．Ginger couldn’t dance as ________ as Jasmine, but she made great progress. A．beautifully B．more beautifully C．less beautifully D．the most beautifully 4．China’s new high-speed train can run ________ than the old ones. A．much fast B．more faster C．much faster D．more fast 5．—Who jumps ________, Greg or Henry? —Henry. In fact, he jumps ________of all the boys. A．higher, higher B．the highest, the highest C．higher, the highest D．the highest, higher 2. 平级比较的结构 (1) “as...as...” 结构 此结构用于表示两者在某方面相同，可译为“与...一样...的/地”。 如：Mum was as happy as us. 妈妈和我们一样高兴。 Some day she will become as great as the famous writer. 总有一天，她会像那位著名的作家一样伟大。 (2) “not as/so...as...”结构 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...”。 如：It is not as/so hot today as yesterday. 今天没有昨天热。 Jim doesn’t run as quickly as David. 吉姆没有大卫跑得快。 [随学随练] 按要求完成句子 1．friendly, as, your, sister, are, as, you (连词成句) 2．The girl is 12 years old. The boy is 12 years old, too. (合并为一句) The girl is ________ ________ ________ the boy. 3．He is 1.8 meters tall. His brother is 1.8 meters tall too.（合并） He is ________ ________ ________ his brother. 4．Sometimes your body language is as important as your words. (改为否定句) Sometimes your body language ________ ________ important as your words. 5．He read as fast as his father, a teacher in a college.（改为否定句） He ________ read ________ fast as his father, a teacher in a college. 3. 平级使用的注意事项 (1) “as...as.. ”与“not as/so...as...”中间部分要用形容词或副词的原级形式，即原型，不能使用比较级、最高级等其他形式。 如：This question is as difficult as the first one. 这个问题和第一个问题一样难。 (2) 表示“不如...”的否定结构中，第一个as可换成so，第二个as只能用as。 如：They didn't arrive so early as we expected. 他们到得不如我们预期的早。 (3) 表示“不如...”时，还可以使用“less+原级+than”结构替换。 如：The food here is not as hot as that in the Sichuan restaurant. =The food here is less hot than that in the Sichuan restaurant. 这的食物没有四川餐馆里的那么辣。 [随学随练] 按要求完成句子或补全句子 1．The film Nobody was less famous than Ne Zha 2 at the beginning. (改为同义句) The film Nobody was ________ ________ ________ ________ Ne Zha 2 at the beginning. 2．作为双胞胎，Lucy不如Lily高。 As twins, Lucy is ________ ________ ________ ________ Lily. 3．AI在陪你练习口语的时候，像老师一样有耐心。 When AI is practising English with you, it talks ________ ________ ________ a teacher does. 4．我游泳没我弟弟游得快。 I don’t swim ________ ________ ________ my brother. 5．Tara和Tina一样努力吗？ Does Tara work ________ ________ ________ Tina? 6．马特和他爸爸一样诚实。他总是说真话。 Matt is ________ ________ ________ his father. He always tells the truth. 4. 形如as...as...结构的常见表达 (1) as soon as“一...就...”，引导时间状语从句。 如：As soon as I arrive, I’ll send you a text message. 我一到就给你发短信。 (2) as long as“只要”，引导条件状语从句；也可以表示“和...一样长”。 如：This rope is as long as that one. 这根绳子和那根一样长。 As long as you try your best, you will succeed. 只要你尽全力，就会成功。 (3) as well as “也，还”；也可以表示“和...一样好”。 如：He gave me some books as well as some pencils.他给了我一些书，也给了我一些铅笔。 He doesn't play basketball as well as his brother. 他篮球打得不如他哥哥好。 (4) as...as possible; as ...as sb. can/could“尽可能...”。 如：You should practise speaking English as much as possible.你应该尽可能多地练习说英语。 Explain it as simply as you can. 尽可能简单地解释一下。 (5) 常见as...as结构用于比喻： as busy as a bee非常忙碌；as strong as an ox强壮如牛；as light as a feather 轻如鸿毛 as dead as a dodo彻底消亡；毫无生气；as happy as a clam 非常开心；as brave as a lion勇猛无畏 as quiet as a mouse悄无声息； as slow as a snail慢吞吞；as hungry as a wolf饥肠辘辘 [随学随练] 补全句子 1．时光飞逝！我们初中阶段的第一个寒假即将到来，我们高兴极了。 Time flies! Our first winter holiday in junior high is coming and we are . 2．我的妈妈每天像蜜蜂一样忙碌，但她认为生活忙碌很好。 My mother is every day, but she thinks it’s good to have a busy life. 3．我一到银行，一个一米高的机器人就过来迎接我。 I reached the bank, a one-metre-tall robot came to welcome me. 4．只要我们遵守自然规律，就能与自然和谐共处。 we follow natural rules, we can live in peace with nature. 2、 单元语法基础练习 1. 单项填空 (1) When my cousin took part in the school show, he sang as ________ as a pop star. A．well B．better C．the better D．the best (2) Bob is a little ________ than me. But he is as ________ as me. A．tall; stronger B．taller; stronger C．taller; strong D．tall; strong (3) —Shall we visit Wuhu Ancient City? —Yup. Just as the Chinese saying goes, “To hear a hundred times is ________ to see once.” A．as good as B．not so good as C．not so well as D．as well as (4) —Hi, Tom. Is your brother as outgoing as you? —No, he’s a quiet boy. He is ________. A．not as outgoing as me B．so lazy as me C．more outgoing than me D．so outgoing as me (5) Protecting the earth is as ________ as protecting ourselves. A．less important B．more important C．the most important D．important (6) —Li Hua speaks English ________ Xiao Lin. —I don’t think so. I think Li Hua does ________ better than Xiao Lin. A．as good as; a lot B．as well as; a little C．as good as; a little D．as well as; more (7) I am ________ than Nancy, but I can’t jump as ________ as she does. What a shame! A．taller; high B．taller; higher C．tall; higher D．tall; high (8) Tom runs faster than David but he doesn’t jump ________ David. A．as high so B．so high as C．as higher as D．as higher so (9) I think Lily will make greater progress in her painting _______________ she studies hard enough. A．as long as B．as soon as C．as well as D．as good as (10) —Kids, what do you think it is like growing up? —It’s just like a journey with rain _________ rainbows, I think. A．as good as B．as well as C．as often as D．as soon as 2. 按要求完成句子或补全句子 (1) The black box isn’t as heavy as the white one. (保持原句意思不变) The white box is ________ ________ the black one (2) This mountain is about 1,500 metres high. That mountain is about 1,500 metres high. （合并为一句） This mountain which is about 1,500 metres high is ________ ________ ________ that one. (3) Jim can draw very well. Tom can draw very well, too.(合并成一句话) Jim can draw ________ ________ ________ Tom. (4) This purple shirt is cheaper than that one. (改写句子) This purple shirt is ________ ________ ________ ________ that one. (5) Li Hong lives as happily as before. (变否定句) Li Hong ________ live ________ happily as before. (6) 看到暴风雨即将来临，我们尽可能快地跑回了露营地。 Seeing the storm was coming soon, we ran back to the campsite ________ ________ ________ we could. (7) 你练习弹琴时不如Tom认真。 You didn’t practise ________ the piano as ________ ________ Tom. (8) 这部电影没有那部有趣。 This movie is ________ ________ ________ ________ that one. This movie is ________ ________ ________ that one. (9) 我的新自行车没有你的贵，但很好用。 My new bike is ________ ________ ________ ________ yours, but it works well. (10) 我的弟弟不如我强壮。 My younger brother ________ ________ ________ ________ __________me. 3、 单元语法提升练习 1. 翻译句子。 (1) 她和我一样诚实。 (2) 学习汉语不像学习法语或德语那么简单。 (3) 我认为游泳不如远足（hiking）有趣。 (4) 莉莉总是比我起得早，但我和她一样努力学习。 (5) 他的钢琴演奏水平不如他哥哥。 2. 语法填空 A The Sahara Desert is in the north of Africa. It is the 1 (large) hot desert in the world, covering about 9,000,000 square kilometres. Life there in the past was much 2 (difficult) for humans than in other places. The Sahara Desert has some of the 3 (terrible) living conditions on earth. It is very hot and dry all year round. The 4 (high) temperature there once reached 58℃. Camels (骆驼) are the 5 (useful) means of transportation (交通工具) for people in the Sahara Desert. Oil is one of the 6 (valuable) mineral resources (矿产资源) in the Sahara Desert. After the people there found oil, they started to sell it to other countries. But the living conditions in the Sahara Desert were still hard. People were worried about the conditions getting 7 (bad) than before. The government tried hard to plant trees. As a result, the Sahara Desert became 8 (beautiful) than before. The Sahara reminds us that nature is just as 9 (important) as humans’ development. The more we protect nature, the 10 (good) our lives will become. So, we should pay more attention to the natural world. B The nature park is a good place for animals. There is quite an important nature park 1 (name) Mai Po Marshes. Every winter, 2 (hundred) of birds fly here. They stay here 3 a few months because there is enough water and food. Many of the birds are 4 danger. 5 (protect) them, the reserve (保护区) won’t allow visitors 6 (come) any time. If you want to visit the Mai Po Marshes, you have to call or email the WWF HK. It can offer people the chances to have a trip with 7 (they) friends at weekends. You can take 8 (photo) and go bird-watching. And you can also see 9 (snake), zebras and other interesting animals. But you can’t get close to the 10 (danger) animals or feed them. Next to the Mai Po Marshes, there is 11 interesting park. The environment of the park is like that of the Mai Po Marshes. So animals 12 (live) in peace there. It is not as 13 (big) as the nature park, but you can play 14 (happy) in this park. You can also learn something about animals in the park 15 you don’t have a chance to go to the Mai Po Marshes. 3. 完形填空 Have you visited any wonders? Now let me tell you something about the Niagara Falls, one of the wonders of the 1 world. They’re 2 Canada and the United States. The falls are on a river that connects two of the Five Great Lakes. The Niagara Falls has two 3 : the Horseshoe Falls on the Canadian side, and the American Falls on the United States’ side. They are about 4 and 1,240 metres wide. The Niagara Falls has three special falls. The tallest is the Horseshoe Falls on the Canadian side. The falls are colourfully lit up 5 night, and many people say they’re even more beautiful in winter, when the ground is covered with snow and water turns to 6 Most visitors go to the falls as 7 as possible, and watch the waters thundering down. The Niagara Falls is 8 the waterfalls in mountains, where a thin stream of water comes down a mountainside, half-flying. Above in the air, you will 9 the real difference between the American and Canadian Falls. The American Falls only gets about 10% of the water, 10 the Canadian Falls gets 90%. 1．A．natural B．modern C．ancient 2．A．among B．between C．with 3．A．times B．heights C．parts 4．A．50 metre high B．50-metres-high C．50 metres high 5．A．on B．at C．in 6．A．rain B．snow C．ice 7．A．more closely B．closer C．close 8．A．different from B．the same as C．just like 9．A．think B．understand C．believe 10．A．unless B．if C．while 学科网（北京）股份有限公司 $ Unit 6 Hitting the road 核心知识点精讲精练 2 (Grammar) 【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Understanding ideas；Grammar和Developing ideas三个部分。 · Grammar 精讲本单元的重点语法，讲解部分配有随学随练。 · 本资料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英语语法知识。 1、 单元重点语法解析 平级的比较 1. 平级，比较级与最高级 (1) 比较级 当表示“...比...更...”时，要用形容词或副词的比较级，常用于两者间的比较。 如：He runs faster than me. 他比我跑得更快。 (2) 最高级 当表示“最...”使，要用形容词或副词的最高级，常用于三者或三者以上之间的比较。 如：Jim jumps the highest in his class. 吉姆是他们班跳的最高的。 (3) 平级 当表示“和...一样...”时，可以用平级比较。 如：He is as tall as his brother. 他和他哥哥一样高。 [随学随练] 单项填空 1．The weather in Harbin is much ________ than that in Beijing in winter. A．cold B．colder C．coldest D．the coldest 【答案】B 【详解】句意：哈尔滨冬天的天气比北京的天气冷得多。 cold冷的；colder更冷的；coldest/the coldest最冷的。根据句中关键词“than”可知，此处表示两者之间的比较，应用形容词比较级，且much可修饰比较级表示程度，应填colder。 2．These days, watching short videos on phones is ________ among the new ways for young people to relax. A．popular B．more popular C．most popular D．the most popular 【答案】D 【详解】句意：如今，在手机上看短视频是年轻人放松的新方式中最受欢迎的。 根据空后“among the new ways…”可知，此处表示在三者或三者以上的范围内进行比较，应用形容词的最高级，且形容词最高级前需加定冠词the。 3．Ginger couldn’t dance as ________ as Jasmine, but she made great progress. A．beautifully B．more beautifully C．less beautifully D．the most beautifully 【答案】A 【详解】句意：Ginger跳舞不如Jasmine优美，但是她取得了很大的进步。 根据“as...as”可知，此处是“as+形容词/副词原级+as”的结构，表示“和……一样……”，结合“but she made great progress”可知，此处说的是“不如……”，用原级。 4．China’s new high-speed train can run ________ than the old ones. A．much fast B．more faster C．much faster D．more fast 【答案】C 【详解】句意：中国的新高速列车比旧的跑得快得多。 根据“than”可知此处应用形容词比较级，fast的比较级为faster；much可修饰比较级表示程度，意为“……得多”，而more不能修饰比较级faster，fast变比较级也不加more。应填much faster。 5．—Who jumps ________, Greg or Henry? —Henry. In fact, he jumps ________of all the boys. A．higher, higher B．the highest, the highest C．higher, the highest D．the highest, higher 【答案】C 【详解】句意：——谁跳得更高，格雷格还是亨利？——亨利。事实上，他是所有男孩中跳得最高的。 higher更高；the highest最高的。根据“Greg or Henry”可知是两者之间的比较，第一空应用比较级higher；根据“of all the boys”可知是所有男孩中的比较(三者及以上)，第二空应用最高级the highest。 2. 平级比较的结构 (1) “as...as...” 结构 此结构用于表示两者在某方面相同，可译为“与...一样...的/地”。 如：Mum was as happy as us. 妈妈和我们一样高兴。 Some day she will become as great as the famous writer. 总有一天，她会像那位著名的作家一样伟大。 (2) “not as/so...as...”结构 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...”。 如：It is not as/so hot today as yesterday. 今天没有昨天热。 Jim doesn’t run as quickly as David. 吉姆没有大卫跑得快。 [随学随练] 按要求完成句子 1．friendly, as, your, sister, are, as, you (连词成句) 【答案】Are you as friendly as your sister? 2．The girl is 12 years old. The boy is 12 years old, too. (合并为一句) The girl is ________ ________ ________ the boy. 【答案】 as old as 3．He is 1.8 meters tall. His brother is 1.8 meters tall too.（合并） He is ________ ________ ________ his brother. 【答案】 as tall as 4．Sometimes your body language is as important as your words. (改为否定句) Sometimes your body language ________ ________ important as your words. 【答案】 isn’t as/so 5．He read as fast as his father, a teacher in a college.（改为否定句） He ________ read ________ fast as his father, a teacher in a college. 【答案】 didn’t as 3. 平级使用的注意事项 (1) “as...as.. ”与“not as/so...as...”中间部分要用形容词或副词的原级形式，即原型，不能使用比较级、最高级等其他形式。 如：This question is as difficult as the first one. 这个问题和第一个问题一样难。 (2) 表示“不如...”的否定结构中，第一个as可换成so，第二个as只能用as。 如：They didn't arrive so early as we expected. 他们到得不如我们预期的早。 (3) 表示“不如...”时，还可以使用“less+原级+than”结构替换。 如：The food here is not as hot as that in the Sichuan restaurant. =The food here is less hot than that in the Sichuan restaurant. 这的食物没有四川餐馆里的那么辣。 [随学随练] 按要求完成句子或补全句子 1．The film Nobody was less famous than Ne Zha 2 at the beginning. (改为同义句) The film Nobody was ________ ________ ________ ________ Ne Zha 2 at the beginning. 【答案】 not as/so famous as 2．作为双胞胎，Lucy不如Lily高。 As twins, Lucy is ________ ________ ________ ________ Lily. 【答案】 not as tall as 3．AI在陪你练习口语的时候，像老师一样有耐心。 When AI is practising English with you, it talks ________ ________ ________ a teacher does. 【答案】 as patiently as 4．我游泳没我弟弟游得快。 I don’t swim ________ ________ ________ my brother. 【答案】 as/so fast as 5．Tara和Tina一样努力吗？ Does Tara work ________ ________ ________ Tina? 【答案】 as hard as 6．马特和他爸爸一样诚实。他总是说真话。 Matt is ________ ________ ________ his father. He always tells the truth. 【答案】 as honest as 4. 形如as...as...结构的常见表达 (1) as soon as“一...就...”，引导时间状语从句。 如：As soon as I arrive, I’ll send you a text message. 我一到就给你发短信。 (2) as long as“只要”，引导条件状语从句；也可以表示“和...一样长”。 如：This rope is as long as that one. 这根绳子和那根一样长。 As long as you try your best, you will succeed. 只要你尽全力，就会成功。 (3) as well as “也，还”；也可以表示“和...一样好”。 如：He gave me some books as well as some pencils.他给了我一些书，也给了我一些铅笔。 He doesn't play basketball as well as his brother. 他篮球打得不如他哥哥好。 (4) as...as possible; as ...as sb. can/could“尽可能...”。 如：You should practise speaking English as much as possible.你应该尽可能多地练习说英语。 Explain it as simply as you can. 尽可能简单地解释一下。 (5) 常见as...as结构用于比喻： as busy as a bee非常忙碌；as strong as an ox强壮如牛；as light as a feather 轻如鸿毛 as dead as a dodo彻底消亡；毫无生气；as happy as a clam 非常开心；as brave as a lion勇猛无畏 as quiet as a mouse悄无声息； as slow as a snail慢吞吞；as hungry as a wolf饥肠辘辘 [随学随练] 补全句子 1．时光飞逝！我们初中阶段的第一个寒假即将到来，我们高兴极了。 Time flies! Our first winter holiday in junior high is coming and we are . 【答案】 as happy as a clam 2．我的妈妈每天像蜜蜂一样忙碌，但她认为生活忙碌很好。 My mother is every day, but she thinks it’s good to have a busy life. 【答案】 as busy as a bee 3．我一到银行，一个一米高的机器人就过来迎接我。 I reached the bank, a one-metre-tall robot came to welcome me. 【答案】 As soon as 4．只要我们遵守自然规律，就能与自然和谐共处。 we follow natural rules, we can live in peace with nature. 【答案】 As long as 2、 单元语法基础练习 1. 单项填空 (1) When my cousin took part in the school show, he sang as ________ as a pop star. A．well B．better C．the better D．the best 【答案】A 【详解】句意：当我的表弟参加学校演出时，他唱得和流行明星一样好。 well好地；better更好地；the better更好地；the best最好地。根据“as...as”结构可知，中间需用形容词或副词的原级，此处修饰动词sang需用副词well。 (2) Bob is a little ________ than me. But he is as ________ as me. A．tall; stronger B．taller; stronger C．taller; strong D．tall; strong 【答案】C 【详解】句意：鲍勃比我高一点。但是他和我一样强壮。 第一空：根据关键词“than”可知，此处应用比较级taller；第二空：根据固定结构“as...as”可知，中间应用形容词原级strong。 (3) —Shall we visit Wuhu Ancient City? —Yup. Just as the Chinese saying goes, “To hear a hundred times is ________ to see once.” A．as good as B．not so good as C．not so well as D．as well as 【答案】B 【详解】句意：——我们去参观芜湖古城吧？——好。正如中国俗语所说：“百闻不如一见。” 考查固定搭配和比较结构。as good as和……一样好，good为形容词；not so good as不如……好；not so well as不如……好，well为副词；as well as和……一样好（也作“以及”解）。俗语“百闻不如一见”的英文对应表达为“To hear a hundred times is not so good as to see once.”，强调“听百次不如见一次”，用not so good as表示“不如……好”，形容词good在句中作表语。故选B。 (4) —Hi, Tom. Is your brother as outgoing as you? —No, he’s a quiet boy. He is ________. A．not as outgoing as me B．so lazy as me C．more outgoing than me D．so outgoing as me 【答案】A 【详解】句意：——嗨，汤姆。你弟弟和你一样外向吗？——不，他是个安静的男孩。他不如我外向。 考查形容词的同级比较用法。not as outgoing as me不如我外向；so lazy as me和我一样懒；more outgoing than me比我更外向；so outgoing as me结构错误。根据答句中的 “No, he's a quiet boy.” 可知，弟弟并不外向，not as outgoing as me“不如我外向”符合语境。 故选A 。 (5) Protecting the earth is as ________ as protecting ourselves. A．less important B．more important C．the most important D．important 【答案】D 【详解】句意：保护地球和保护我们自己一样重要。 “as…as” 表示“和……一样”，中间需用形容词或副词的原级。A 项和 B 项为比较级形式，C 项为最高级形式，D 项为形容词原级。根据语法规则，此处应填原级。 (6) —Li Hua speaks English ________ Xiao Lin. —I don’t think so. I think Li Hua does ________ better than Xiao Lin. A．as good as; a lot B．as well as; a little C．as good as; a little D．as well as; more 【答案】B 【详解】句意：——李华英语说得和小林一样好。——我不这么认为。我认为李华确实比小林好一点。 as good as和……一样好；as well as和……一样好；a lot很/非常；a little一点儿/稍微；more更多。第一空修饰动词speaks，需用副词well，构成as well as结构，good是形容词，排除A、C；第二空修饰比较级better，可用a little或a lot，排除D。 (7) I am ________ than Nancy, but I can’t jump as ________ as she does. What a shame! A．taller; high B．taller; higher C．tall; higher D．tall; high 【答案】A 【详解】句意：我比Nancy高，但是我跳的没有她高。真遗憾！ 考查比较级和原级。根据“than”可知，第一空要填形容词的比较级，根据“as…as”可知，第二空要填副词原级。故选A。 (8) Tom runs faster than David but he doesn’t jump ________ David. A．as high so B．so high as C．as higher as D．as higher so 【答案】B 【详解】句意：汤姆跑得比David快，但他跳得不如David 高。 考查比较结构。as...as和not so/as...as之间用形容词/副词原级，排除C和D；A选项结构错误，故选B。 (9) I think Lily will make greater progress in her painting _______________ she studies hard enough. A．as long as B．as soon as C．as well as D．as good as 【答案】A 【详解】句意：我认为莉莉只要学习足够努力，她将在绘画方面取得了更大的进步。as long as只要，引导条件状语从句；as soon as一……就……，引导时间状语从句；as well as也，而且，连接并列成分；as good as和……一样好，连接并列成分。此处表示条件，故选A。 (10) —Kids, what do you think it is like growing up? —It’s just like a journey with rain _________ rainbows, I think. A．as good as B．as well as C．as often as D．as soon as 【答案】B 【详解】句意：——孩子们，你们觉得长大是什么样的？——我想，这就像一场有雨也有彩虹的旅程。 考查短语辨析。as good as和……一样好；as well as和；as often as每当；as soon as一……就。根据“It’s just like a journey with rain...rainboww”可知长大就像一场有雨也有彩虹的旅行，用as well as连接。故选B。 2. 按要求完成句子或补全句子 (1) The black box isn’t as heavy as the white one. (保持原句意思不变) The white box is ________ ________ the black one 【答案】 heavier than (2) This mountain is about 1,500 metres high. That mountain is about 1,500 metres high. （合并为一句） This mountain which is about 1,500 metres high is ________ ________ ________ that one. 【答案】 as high as (3) Jim can draw very well. Tom can draw very well, too.(合并成一句话) Jim can draw ________ ________ ________ Tom. 【答案】 as well as (4) This purple shirt is cheaper than that one. (改写句子) This purple shirt is ________ ________ ________ ________ that one. 【答案】 not as/so expensive as (5) Li Hong lives as happily as before. (变否定句) Li Hong ________ live ________ happily as before. 【答案】 doesn’t as/so (6) 看到暴风雨即将来临，我们尽可能快地跑回了露营地。 Seeing the storm was coming soon, we ran back to the campsite ________ ________ ________ we could. 【答案】 as fast as (7) 你练习弹琴时不如Tom认真。 You didn’t practise ________ the piano as ________ ________ Tom. 【答案】 playing carefully as (8) 这部电影没有那部有趣。 This movie is ________ ________ ________ ________ that one. This movie is ________ ________ ________ that one. 【答案】 not as/so interesting as less interesting than (9) 我的新自行车没有你的贵，但很好用。 My new bike is ________ ________ ________ ________ yours, but it works well. 【答案】 not as expensive as (10) 我的弟弟不如我强壮。 My younger brother ________ ________ ________ ________ __________me. 【答案】 is not as/so strong as 3、 单元语法提升练习 1. 翻译句子。 (1) 她和我一样诚实。 【答案】She is as honest as I. (2) 学习汉语不像学习法语或德语那么简单。 【答案】Learning Chinese is not as easy as learning French or German. (3) 我认为游泳不如远足（hiking）有趣。 【答案】I don’t think swimming is as interesting as hiking. (4) 莉莉总是比我起得早，但我和她一样努力学习。 【答案】Lily always gets up earlier than me, but I study as hard as her. (5) 他的钢琴演奏水平不如他哥哥。 【答案】He doesn’t play the piano so well as his brother/He doesn’t play the piano as well as his brother. 2. 语法填空 A The Sahara Desert is in the north of Africa. It is the 1 (large) hot desert in the world, covering about 9,000,000 square kilometres. Life there in the past was much 2 (difficult) for humans than in other places. The Sahara Desert has some of the 3 (terrible) living conditions on earth. It is very hot and dry all year round. The 4 (high) temperature there once reached 58℃. Camels (骆驼) are the 5 (useful) means of transportation (交通工具) for people in the Sahara Desert. Oil is one of the 6 (valuable) mineral resources (矿产资源) in the Sahara Desert. After the people there found oil, they started to sell it to other countries. But the living conditions in the Sahara Desert were still hard. People were worried about the conditions getting 7 (bad) than before. The government tried hard to plant trees. As a result, the Sahara Desert became 8 (beautiful) than before. The Sahara reminds us that nature is just as 9 (important) as humans’ development. The more we protect nature, the 10 (good) our lives will become. So, we should pay more attention to the natural world. 【答案】 1．largest 2．more difficult 3．most terrible 4．highest 5．most useful 6．most valuable 7．worse 8．more beautiful 9．important 10．better 【导语】本文是一篇说明文，主要介绍了撒哈拉沙漠的地理位置、面积、恶劣的生存环境、当地交通与资源，以及环境治理带来的变化，强调了保护自然与人类发展同等重要的理念。 【详解】 1．句意：它是世界上最大的热带沙漠，面积约900万平方公里。空格前有定冠词“the”，范围限定为in the world“全世界”，要用形容词large的最高级形式largest。 2．句意：过去人类在那里的生活比在其他地方艰难得多。空格后出现标志词“than”，空格前为“was much”，要用形容词difficult的比较级形式more difficult。 3．句意：撒哈拉沙漠拥有地球上最恶劣的一些生存条件。空格前为“the”，范围限定为on earth“地球上”，要用形容词terrible的最高级形式most terrible。 4．句意：那里的最高气温曾经达到58摄氏度。空格前为“The”，此处修饰名词“temperature”，结合语境表示“最高的”，要用形容词high的最高级highest。 5．句意：骆驼是撒哈拉沙漠里最实用的交通工具。结合语境及定冠词“the” 限定，此处表示范围里最具实用性的，用形容词useful的最高级形式most useful。 6．句意：石油是撒哈拉沙漠里最宝贵的矿产资源之一。固定结构“one of the + 形容词最高级 + 名词复数”表示“最……之一”，valuable的最高级形式为most valuable。 7．句意：人们担心生存条件会变得比之前更差。空格前为系动词“getting”，空格后有“than”，提示要用形容词bad的比较级形式worse。 8．句意：最终，撒哈拉沙漠变得比以前更加美丽了。空格前为系动词“became”，空格后有“than”，需使用形容词beautiful的比较级形式more beautiful。 9．句意：撒哈拉沙漠提醒我们，自然和人类的发展同等重要。固定原级比较结构“as + 形容词原级 + as”表示“和……一样”，此处直接用形容词原级important即可。 10．句意：我们越是保护自然，我们的生活就会变得越好。固定句型“The + 比较级..., the + 比较级...”意为“越……，就越……”；系动词“become”应接形容词good 的比较级better。 B The nature park is a good place for animals. There is quite an important nature park 1 (name) Mai Po Marshes. Every winter, 2 (hundred) of birds fly here. They stay here 3 a few months because there is enough water and food. Many of the birds are 4 danger. 5 (protect) them, the reserve (保护区) won’t allow visitors 6 (come) any time. If you want to visit the Mai Po Marshes, you have to call or email the WWF HK. It can offer people the chances to have a trip with 7 (they) friends at weekends. You can take 8 (photo) and go bird-watching. And you can also see 9 (snake), zebras and other interesting animals. But you can’t get close to the 10 (danger) animals or feed them. Next to the Mai Po Marshes, there is 11 interesting park. The environment of the park is like that of the Mai Po Marshes. So animals 12 (live) in peace there. It is not as 13 (big) as the nature park, but you can play 14 (happy) in this park. You can also learn something about animals in the park 15 you don’t have a chance to go to the Mai Po Marshes. 【答案】 1．named 2．hundreds 3．for 4．in 5．To protect 6．to come 7．their 8．photos 9．snakes 10．dangerous 11．an 12．live/are living 13．big 14．happily 15．when/if 【导语】本文主要介绍了米埔湿地自然公园及其周边公园的生态环境和游览注意事项。 1．句意：有一个相当重要的自然公园叫米埔湿地。句中已有谓语动词is，park和name之间是被动关系，所以此处用过去分词作后置定语修饰名词park，name的过去分词named。故填named。 2．句意：每年冬天，数百只鸟飞到这里。hundreds of“数百”，固定搭配。故填hundreds。 3．句意：它们在这里待几个月，因为有足够的水和食物。stay here for a few months“在这里待几个月”，for后接一段时间。故填for。 4．句意：许多鸟处于危险之中。in danger“处于危险中”，固定搭配。故填in。 5．句意：为了保护它们，保护区不允许游客随时来。此处用动词不定式作目的状语，句首首字母大写。故填To protect。 6．句意：为了保护它们，保护区不允许游客随时来。allow sb. to do sth.“允许某人做某事”，固定搭配。故填to come。 7．句意：它可以在周末为人们提供与朋友一起旅行的机会。修饰名词friends，应用they的形容词性物主代词their“他们的”。故填their。 8．句意：你可以拍照和观鸟。take photos“拍照”，固定搭配。故填photos。 9．句意：并且你还可以看到蛇、斑马和其他有趣的动物。此处用名词复数表示泛指，snake的复数形式是snakes“蛇”。故填snakes。 10．句意：但是你不能靠近危险的动物或喂它们。修饰名词animals，应用danger的形容词形式dangerous“危险的”。故填dangerous。 11．句意：在米埔湿地旁边，有一个有趣的公园。此处泛指“一个有趣的公园”，interesting以元音音素开头，应用不定冠词an。故填an。 12．句意：所以动物们在那里和平生活。此处可以表示客观事实用一般现在时，主语是复数，动词用原形live；也可以表示动物现在正在那里和平生活，用现在进行时（am/is/are+现在分词），主语是复数，be动词用are，live的现在分词是living。故填live/are living。 13．句意：它没有自然公园大，但是你可以在这个公园里快乐地玩耍。as...as中间用形容词或副词原级，此处作is的表语，用形容词big“大的”。故填big。 14．句意：它没有自然公园大，但是你可以在这个公园里快乐地玩耍。修饰动词play，应用happy的副词形式happily“快乐地”。故填happily。 15．句意：当/如果你没有机会去米埔湿地，你也可以在公园里了解一些关于动物的知识。此处可以表示时间，用when“当……时候”引导时间状语从句；也可以表示条件，用if“如果”引导条件状语从句。故填when/if。 3. 完形填空 Have you visited any wonders? Now let me tell you something about the Niagara Falls, one of the wonders of the 1 world. They’re 2 Canada and the United States. The falls are on a river that connects two of the Five Great Lakes. The Niagara Falls has two 3 : the Horseshoe Falls on the Canadian side, and the American Falls on the United States’ side. They are about 4 and 1,240 metres wide. The Niagara Falls has three special falls. The tallest is the Horseshoe Falls on the Canadian side. The falls are colourfully lit up 5 night, and many people say they’re even more beautiful in winter, when the ground is covered with snow and water turns to 6 Most visitors go to the falls as 7 as possible, and watch the waters thundering down. The Niagara Falls is 8 the waterfalls in mountains, where a thin stream of water comes down a mountainside, half-flying. Above in the air, you will 9 the real difference between the American and Canadian Falls. The American Falls only gets about 10% of the water, 10 the Canadian Falls gets 90%. 1．A．natural B．modern C．ancient 2．A．among B．between C．with 3．A．times B．heights C．parts 4．A．50 metre high B．50-metres-high C．50 metres high 5．A．on B．at C．in 6．A．rain B．snow C．ice 7．A．more closely B．closer C．close 8．A．different from B．the same as C．just like 9．A．think B．understand C．believe 10．A．unless B．if C．while 【答案】 1．A 2．B 3．C 4．C 5．B 6．C 7．C 8．A 9．B 10．C 【导语】本文是一篇说明文，主要介绍了世界自然奇观之一的尼亚加拉大瀑布，包括其地理位置、组成部分、景观特点及美加两侧瀑布的差异。 1．句意：现在让我来给你介绍尼亚加拉大瀑布，它是自然界的奇观之一。 natural自然的；modern现代的；ancient古老的。 “Niagara Falls（尼亚加拉大瀑布）”是自然景观，可知它属于“自然界的奇观”。故选A。 2．句意：它位于加拿大和美国之间。 among在……（三者及以上）之间；between在……（两者）之间；with和。“Canada and the United States”是两个国家，“between...and...”是固定搭配，意为“在……和……之间”。故选B。 3．句意：尼亚加拉大瀑布分为两部分：加拿大一侧的马蹄瀑布，以及美国一侧的美国瀑布。 times次数；heights高度；parts部分。冒号后列举了“马蹄瀑布”和“美国瀑布”，可知大瀑布分为两个“部分”。故选C。 4．句意：它高约50米，宽约1240米。 50 metre high（语法错误）；50-metres-high（语法错误）；50 metres high高50米。描述长度/高度的结构是“数词+名词复数+形容词”，“50 metres high”是正确表达。故选C。 5．句意：瀑布在夜晚被五彩斑斓地照亮。 on在……上；at在（时间点）；in在（时间段）。 根据文章“The falls are colourfully lit up ... night”，“at night”是固定搭配，意为“在夜晚”。故选B。 6．句意：很多人说它在冬天更美丽，那时地面被雪覆盖，水也结成了冰。 rain雨；snow雪；ice冰。根据“winter”和“water turns to ...”可知，冬天水会变成“冰”。故选C。   7．句意：大多数游客会尽可能靠近瀑布，观看水流轰鸣而下。 more closely更紧密地（比较级）；closer更近的（比较级）；close靠近地。 “as+形容词/副词原级+as possible”是固定结构，意为“尽可能……”；此处“go”是动词，需用副词“close”修饰。故选C。 8．句意：尼亚加拉大瀑布和山间的瀑布不同。 different from与……不同；the same as和……一样；just like就像。根据“where a thin stream of water comes down a mountainside”可知，山间瀑布是细流沿山坡流下，而尼亚加拉大瀑布是大水流轰鸣而下，可知两者“不同”。故选A。 9．句意：在空中，你会明白美国瀑布和加拿大瀑布之间的真正差异。 think思考；understand明白；believe相信。根据后文介绍美加两侧瀑布的水量占比，可知在空中能“明白”两者的差异。故选B。 10．句意：美国瀑布只承接约10%的水量，而加拿大瀑布承接90%。 unless除非；if如果；while然而（表对比）。根据“The American Falls only gets about 10% of the water, ... the Canadian Falls gets 90%”，前后句“10%”和“90%”的水量对比，“while”可表转折对比。故选C。 学科网（北京）股份有限公司 $