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八年级英语下册期中形容词和副词的比较等级语法知识复习分层练习题
基础练习
1．—What do you think of Mr. Liu
—He is quite ________, but he is good at telling funny stories.
A．friendly B．outgoing C．serious D．humorous
2．My first try was much ________ than I thought, so I need to rewrite it.
A．good B．better C．bad D．worse
3．It is raining ________ outside, and the weather will get even ________ in the afternoon.
A．hard; bad B．hardly; badly C．hard; worse D．hardly; better
4．I don’t know why I seem to learn everything ________ than others.
A．more slowly B．most slowly C．more quickly D．most quickly
5．The wind is blowing much ________ than before. You’d better go out now.
A．strongly B．more strongly C．gently D．more gently
6．The price of new energy vehicles is not as ________ as last year, so more people are going to buy them.
A．expensive B．more expensive C．most expensive D．the most expensive
7．The weather in Tianjin is not ________ hot ________ that in Jinan.
A．as; than B．so; as C．than; as D．as; so
8．The weather gets ________ here. We can’t stand it.
A．the colder and colder B．cold and colder
C．coldest and colder D．colder and colder
9．Good luck belongs to hard-working people, the ________ you work, the ________ you will be.
A．hard; lucky B．harder; luckier C．harder; lucky D．hardest; luckiest
10．—They are twins. I don’t know which one of them is Tim.
—Tim is ________ of the two.
A．strong B．the taller C．the thinnest D．shorter
11．—How ________ Li Ming writes!
—Yes, he is the ________ in our class.
A．carefully, most careful B．careful, most careful
C．carefully, most carefully D．careful, most carefully
12．The man is one of ________ ping-pong players in China. He is my hero.
A．worse B．the best C．better D．the worst
13．I think the Yellow River is the ________ river in China.
A．second longer B．two longer C．second longest D．two longest
14．Which do you like ________, tea or milk
A．good B．better C．best D．the best
15．—Which subject do you like ______, math, Chinese or English
—Of course English.
well B．better C．best D．Good
重点练习
Tina was angry. She didn’t say goodbye to me, but turned around and left my home very 1 . I really didn’t know why. We are good friends. Everything seemed 2 to me. I would take part in a speech contest next week, but I was not very good at 3 speeches. So I asked Tina for help because she had a lot of 4 with that. And we finished it a few minutes later. Just after I said “goodbye” to her, Tina seemed to get angry suddenly. She 5 talking to me and went away.
“Honey, do you remember what you had talked about before you said goodbye ” my mother asked me.
I thought about it carefully. “Tina asked me to buy her an ice cream as a reward (奖励). I laughed and said she was only doing me a small favor (帮助) and should 6 it herself.”
“Oh, dear, that might be the 7 ,” my mother said. “It was only a joke. I mean, 8 Tina didn’t help me, I would also buy her an ice cream.”
My mother 9 softly, “Tina may be angry because you said what she did was a little favor, not because you didn’t buy her the ice cream.”
After hearing my mother’s words, I was really 10 . “Wasn’t it a small favor Tina is very good at writing speeches. 11 the time we met to the time she left, it only took about ten minutes.”
“I think you should 12 some more time,” my mother said. “To help you check your speech, Tina might have been waiting for your call the whole 13 . She didn’t know when you would call her. And she had to change her 14 for the day. Maybe she was going to the library or see her favorite movie.”
My mother was right. If I were Tina, I would be even 15 . I must give Tina a call and thank her sincerely.
1．A．happily B．bravely C．quickly D．carefully
2．A．strange B．perfect C．useful D．similar
3．A．writing B．reading C．watching D．learning
4．A．chances B．hobbies C．information D．experience
5．A．stopped B．forgot C．kept D．practised
6．A．ask for B．pay for C．wait for D．look for
7．A．time B．problem C．money D．difficulty
8．A．so that B．while C．even if D．because
9．A．spoke B．shouted C．suggested D．turned
10．A．bored B．excited C．funny D．surprised
11．A．At B．Before C．From D．Until
12．A．share B．add C．spend D．choose
13．A．year B．month C．week D．day
14．A．result B．course C．plan D．life
15．A．calmer B．busier C．funnier D．angrier
拓展练习
1． But it only gets ________. I can hardly get any sleep in the night now.
A．good B．better C．bad D．worse
2．—How are you feeling, Mom
—A little ________. The medicine is working.
A．better B．best C．worse D．worst
3． In a DIY club, the more we practice, ________ we become.
A．the worse B．the worst C．the better D．the best
4． The National Library of China is ________ public library in Asia.
A．large B．larger C．largest D．the largest
5． Lingling is one of ________ students in my class. She is always ready to offer help.
A．helpful B．more helpful C．less helpful D．the most helpful
6． Journey to the West is one of ________ classic novels in China. People like reading it.
A．famous B．more famous C．the more famous D．the most famous
7． It is said that smart technology is making people ________ than before and doing them harm.
A．lazy B．lazier C．laziest D．the laziest
8．—So who do you think should get the job, Frank or Ben
—Well, Frank is ________. I think he should get the job.
A．outgoing B．more outgoing C．much outgoing D．the most outgoing
9． When seeing the Shenzhou-18 manned spaceship flying into the sky, my father was ______ than any one of us.
A．more excited B．more exciting C．the most excited D．the most exciting
10．—How are you feeling today, young man
—Much ________. The medicine works. Thank you, Doctor.
A．best B．better C．worst D．worse
11． Many people think eating at home is ________ than eating in the restaurant.
A．healthy B．healthier C．healthiest D．the healthiest
12．—Look! The lake is clean. I never throw litter into it.
—If everyone does this, it would be ________.
A．dirtier B．the dirtiest C．cleaner D．the cleanest
13． In the exam, the _________ you are, the fewer mistakes you’ll make.
A．careful B．carefully C．more carefully D．more careful
14．—I really like yesterday’s dragon boat race. What about you
—Me too. It’s ________ one I have ever seen.
A．a more boring B．a more wonderful
C．the most boring D．the most wonderful
15． Huahua is one of ________ pandas.
A．cute B．cuter C．cutest D．the cutest
16． What a lovely reading room! It’s one of ________ in our school.
A．nice B．nicer C．nicest D．the nicest
17． he Qinghai Lake is ________ lake in China. It is in Qinghai Province.
A．large B．larger C．largest D．the largest
18． Jianshe Road is the ________ road in our city, especially around 8:00 am.
A．busier B．busiest C．wider D．widest
19． Qomolangma is _________ mountain in the world.
A．high B．higher C．highest D．the highest
20． Today AI technology is developing ________ we can imagine. Nobody knows what will happen tomorrow.
A．much faster than B．as fast as C．more slowly than D．as slowly as
答案解析
基础练习
1．—What do you think of Mr. Liu
—He is quite ________, but he is good at telling funny stories.
A．friendly B．outgoing C．serious D．humorous
【答案】C
【详解】句意：——你认为刘先生怎么样？——他相当严肃，但他擅长讲有趣的故事。
考查形容词辨析。friendly友好的；outgoing外向的；serious严肃的；humorous幽默的。根据“but”表示的转折关系，空白处应与“擅长讲有趣的故事”（暗示幽默）形成对比，因此空白处应表示“严肃”之意。故选C。
2．My first try was much ________ than I thought, so I need to rewrite it.
A．good B．better C．bad D．worse
【答案】D
【详解】句意：我的第一次尝试比我预想的要差得多，所以我需要重写它。
考查形容词比较级辨析。good好，形容词原级；better更好，比较级；bad差，形容词原级；worse更差，比较级。根据“than”可知，此空应填比较级，且根据后半句“so I need to rewrite it”可推知，第一次尝试的结果不理想，比预想的更差。故选D。
3．It is raining ________ outside, and the weather will get even ________ in the afternoon.
A．hard; bad B．hardly; badly C．hard; worse D．hardly; better
【答案】C
【详解】句意：外面雨下得很大，而且下午天气会变得更糟。
考查副词和形容词比较级的用法。hard猛烈地，副词原级；bad坏的，形容词原级；hardly几乎不；badly糟糕地，副词原级；worse更坏的，形容词比较级；better更好的，形容词比较级。根据“raining”可知，此处需用副词hard表示雨下得大，排除BD；根据“even”可知，其后应用比较级表示变得更糟，排除A。故选C。
4．I don’t know why I seem to learn everything ________ than others.
A．more slowly B．most slowly C．more quickly D．most quickly
【答案】A
【详解】句意：我不知道为什么我似乎学习所有事情比其他人更慢。
考查副词辨析及比较级。more slowly更慢，副词比较级；most slowly最慢，副词最高级；more quickly更快，副词比较级；most quickly最快，副词最高级。根据“I don’t know why I seem to learn everything...than others.”可知，此处表示比较关系，因此必须使用比较级形式，排除BD选项；且此处说话者表达困惑，暗示学习速度慢，而非快，排除C。故选A。
5．The wind is blowing much ________ than before. You’d better go out now.
A．strongly B．more strongly C．gently D．more gently
【答案】D
【详解】句意：风刮得比刚才小多了。你最好现在就出去。
考查副词的比较级及副词辨析。strongly强有力地，副词原级；more strongly更强有力地，副词比较级；gently轻柔地，副词原级；more gently更轻柔地，副词比较级。根据“than before”可知，此处需用比较级。又根据“You’d better go out now”可知，风刮得更小了，所以可以出去。故选D。
6．The price of new energy vehicles is not as ________ as last year, so more people are going to buy them.
A．expensive B．more expensive C．most expensive D．the most expensive
【答案】A
【详解】句意：新能源汽车的价格不像去年那样贵，所以更多人打算购买。
考查形容词原级比较。expensive贵的，形容词；more expensive更贵的，形容词比较级；most expensive最贵的，形容词最高级；the most expensive最贵的，带定冠词的形容词最高级。句中“not as…as”结构表示“不像……一样”，中间需用形容词原级。故选A。
7．The weather in Tianjin is not ________ hot ________ that in Jinan.
A．as; than B．so; as C．than; as D．as; so
【答案】B
【详解】句意：天津的天气不像济南的天气那么热。
考查not so…as用法。not so/as…as…表示“不像……一样”，是固定搭配。故选B。
8．The weather gets ________ here. We can’t stand it.
A．the colder and colder B．cold and colder
C．coldest and colder D．colder and colder
【答案】D
【详解】句意：这里的天气变得越来越冷。我们受不了了。
考查形容词比较级。“形容词比较级 + and + 形容词比较级”，是固定结构，表示“越来越……”，无需加定冠词“the”，D项符合。故选D。
9．Good luck belongs to hard-working people, the ________ you work, the ________ you will be.
A．hard; lucky B．harder; luckier C．harder; lucky D．hardest; luckiest
【答案】B
【详解】句意：好运属于勤奋的人。你越努力，你就越幸运。
考查比较级用法。hard努力地，lucky幸运的；harder更努力地，luckier更幸运的；hardest最努力地，luckiest最幸运的。根据“the…you work, the…you will be”可知，此处是“the+比较级，the+比较级”句型，意为“越……，就越……”。第一空修饰动词work，应用副词比较级harder；第二空作系动词be的表语，应用形容词比较级luckier。故选B。
10．—They are twins. I don’t know which one of them is Tim.
—Tim is ________ of the two.
A．strong B．the taller C．the thinnest D．shorter
【答案】B
【详解】句意：——他们是双胞胎。我不知道他们中哪一个是Tim。——Tim是两人中较高的那个。
考查形容词比较级。strong强壮的；the taller较高的；the thinnest最瘦的；shorter较矮的。根据“of the two”可知，两者中的比较要用比较级，特指两者中的某一个，前要加the，故选B。
11．—How ________ Li Ming writes!
—Yes, he is the ________ in our class.
A．carefully, most careful B．careful, most careful
C．carefully, most carefully D．careful, most carefully
【答案】A
【详解】句意：——李明写得多认真啊！——是的，他是我们班最认真的。
考查感叹句及形容词最高级。第一句为感叹句，中心词是动词writes，应用副词carefully修饰，构成“How + 副词 + 主语 + 谓语！”结构；第二句为“the + 形容词最高级 + 名词”结构，表示“最……的（人）”，作表语说明主语he的特征，应用形容词careful的最高级most careful。故选A。
12．The man is one of ________ ping-pong players in China. He is my hero.
A．worse B．the best C．better D．the worst
【答案】B
【详解】句意：这个男人是中国最好的乒乓球运动员之一。他是我的偶像。
考查形容词的最高级。worse更差的；the best最好的；better更好的；the worst最差的。根据“one of”可知，此处是“one of the+最高级+名词复数”结构，表示“最……的……之一”，结合“He is my hero.”可知，他是最好的运动员之一。故选B。
13．I think the Yellow River is the ________ river in China.
A．second longer B．two longer C．second longest D．two longest
【答案】C
【详解】句意：我认为黄河是中国第二长的河流。
考查形容词最高级的用法。根据“I think the Yellow River is the ... river in China.”可知，黄河是中国第二长的河流，此处是“序数词+最高级+名词”的用法。故选C。
14．Which do you like ________, tea or milk
A．good B．better C．best D．the best
【答案】B
【详解】句意：你更喜欢哪一个，茶还是牛奶？
考查比较级用法。good好；better更；best最；the best最好的。根据“tea or milk”表示在两者中选择，需用比较级“better”。故选B。
15．—Which subject do you like ______, math, Chinese or English
—Of course English.
A．well B．better C．best D．good
【答案】C
【详解】句意：——数学、语文和英语，你最喜欢哪门学科？——当然是英语。
考查副词最高级。well好地，副词原级；better更好，比较级；best最好，最高级；good好的，形容词原级。根据“math, Chinese or English”可知，三者比较应使用最高级，且此处修饰动词like，应用副词best。故选C。
重点练习
Tina was angry. She didn’t say goodbye to me, but turned around and left my home very 1 . I really didn’t know why. We are good friends. Everything seemed 2 to me. I would take part in a speech contest next week, but I was not very good at 3 speeches. So I asked Tina for help because she had a lot of 4 with that. And we finished it a few minutes later. Just after I said “goodbye” to her, Tina seemed to get angry suddenly. She 5 talking to me and went away.
“Honey, do you remember what you had talked about before you said goodbye ” my mother asked me.
I thought about it carefully. “Tina asked me to buy her an ice cream as a reward (奖励). I laughed and said she was only doing me a small favor (帮助) and should 6 it herself.”
“Oh, dear, that might be the 7 ,” my mother said. “It was only a joke. I mean, 8 Tina didn’t help me, I would also buy her an ice cream.”
My mother 9 softly, “Tina may be angry because you said what she did was a little favor, not because you didn’t buy her the ice cream.”
After hearing my mother’s words, I was really 10 . “Wasn’t it a small favor Tina is very good at writing speeches. 11 the time we met to the time she left, it only took about ten minutes.”
“I think you should 12 some more time,” my mother said. “To help you check your speech, Tina might have been waiting for your call the whole 13 . She didn’t know when you would call her. And she had to change her 14 for the day. Maybe she was going to the library or see her favorite movie.”
My mother was right. If I were Tina, I would be even 15 . I must give Tina a call and thank her sincerely.
1．A．happily B．bravely C．quickly D．carefully
2．A．strange B．perfect C．useful D．similar
3．A．writing B．reading C．watching D．learning
4．A．chances B．hobbies C．information D．experience
5．A．stopped B．forgot C．kept D．practised
6．A．ask for B．pay for C．wait for D．look for
7．A．time B．problem C．money D．difficulty
8．A．so that B．while C．even if D．because
9．A．spoke B．shouted C．suggested D．turned
10．A．bored B．excited C．funny D．surprised
11．A．At B．Before C．From D．Until
12．A．share B．add C．spend D．choose
13．A．year B．month C．week D．day
14．A．result B．course C．plan D．life
15．A．calmer B．busier C．funnier D．angrier
【答案】
1．C 2．B 3．A 4．D 5．A 6．B 7．B 8．C 9．A 10．D 11．C 12．C 13．D 14．C 15．D
【解析】本文讲述了“我”的好友Tina因“我”对她帮忙写演讲稿的评价而生气，经妈妈分析后“我”意识到问题并决定向Tina真诚致谢的故事。
1．句意：她没跟我道别，而是转身很快离开了我家。
happily开心地；bravely勇敢地；quickly快速地；carefully仔细地。根据“She didn’t say goodbye to me, but turned around and left my home very…”可知，Tina生气时应是快速离开，故选C。
2．句意：对我来说，一切似乎都很完美。
strange奇怪的；perfect完美的；useful有用的；similar相似的。根据“I really didn’t know why. We are good friends.”可知，作者认为和蒂娜是好朋友，也不知道蒂娜为什么生气，所以此处指作者自认为一切都很完美。故选B。
3．句意：我下周要参加演讲比赛，但我不太擅长写演讲稿。
writing写；reading读；watching看；learning学习。根据后文“Tina is very good at writing speeches”可知是写演讲稿，故选A。
4．句意：所以我向Tina求助，因为她在这方面有很多经验。
chances机会；hobbies爱好；information信息；experience经验。根据“So I asked Tina for help because she had a lot of…with that.”可知，她在这方面有很多经验，“have experience with sth”表示在某方面有经验，故选D。
5．句意：她停止和我说话，然后离开了。
stopped停止；forgot忘记；kept保持；practised练习。根据“…and went away”可知，她突然离开，所以应是停止跟我说话。“stop doing sth”表示停止做某事，故选A。
6．句意：我笑着说她只是帮了我一个小忙，应该自己付钱买（冰淇淋）。
ask for请求；pay for付钱；wait for等待；look for寻找。根据“Tina asked me to buy her an ice cream as a reward.”可知，蒂娜让作者给她买一个冰淇淋作为奖励，所以此处是支付冰淇淋的费用。故选B。
7．句意：哦，亲爱的，那可能就是问题所在。
time时间；problem问题；money钱；difficulty困难。根据前文“I laughed and said she was only doing me a small favor and should…it herself.”可知，这里指“那就是生气的原因”，即问题，故选B。
8．句意：我的意思是，即使Tina没帮我，我也会给她买冰淇淋。
so that以便；while当……时；even if即使；because因为。根据“Tina didn’t help me, I would also buy her an ice cream.”可知，此处前后句是让步关系，even if引导让步状语从句。故选C。
9．句意：我妈妈轻声说，“蒂娜生气可能是因为你说她所做的只是帮了一个小忙，而不是因为你没给她买冰淇淋。”
spoke说；shouted喊；suggested建议；turned转动。根据后文“Tina may be angry because you said what she did was a little favor, not because you didn’t buy her the ice cream.”可知，此处是妈妈轻声说，用“speak softly”表达，故选A。
10．句意：听了妈妈的话后，我真的很惊讶。
bored无聊的；excited兴奋的；funny有趣的；surprised惊讶的。根据“After hearing my mother’s words, I was really…”可知，因为“我”之前没意识到问题，所以当我听到妈妈的话后，我是惊讶的，故选D。
11．句意：从我们见面到她离开，只花了大约十分钟。
At在……；Before在……之前；From从……；Until直到……。根据“…the time we met to the time she left, it only took about ten minutes”可知，此处表示从我们见面到她离开，“from…to…”表示从……到……，故选C。
12．句意：“我认为你应该多花一些时间，”我母亲说。
share分享；add添加；spend花费；choose选择。根据“…some more time”可知，此处指花更多时间。spend time“花时间”，为固定搭配。故选C。
13．句意：为了帮你检查演讲稿，Tina可能一整天都在等你的电话。
year年；month月；week周；day天。根据“And she had to change her…for the day.”可知是等你一整天，故选D。
14．句意：而且她不得不改变当天的计划。
result结果；course课程； plan计划；life生活。根据“And she had to change her…for the day.”可知，因为等电话，所以改变计划，故选C。
15．句意：如果我是Tina，我会更生气。
calmer更冷静的；busier更忙的；funnier更有趣的；angrier更生气的。根据“If I were Tina, I would be even…”可知，换位思考后，会更生气，故选D。
拓展练习
1． But it only gets ________. I can hardly get any sleep in the night now.
A．good B．better C．bad D．worse
【答案】D
【详解】句意：但情况只会变得更糟。我现在晚上几乎睡不着。
考查形容词辨析和比较级用法。good好的；better更好的；bad糟糕的；worse更糟的。根据“I can hardly get any sleep”可知，这表明情况不好，睡眠困难。所以，空格处应该描述情况向坏的方向发展，而非向好的方向，排除A和B；gets后接形容词比较级，表示变化，“it only gets worse”是英语惯用表达，强调情况没有改善反而恶化，排除C。故选D。
2．—How are you feeling, Mom
—A little ________. The medicine is working.
A．better B．best C．worse D．worst
【答案】A
【详解】句意：——妈妈，你感觉怎么样？——稍微好一点。这药起作用了。
考查比较级和形容词辨析。better更好；best最好；worse更差；worst最差。根据“The medicine is working.”可知药起作用了，所以感觉好点了，a little修饰比较级。故选A。
3． In a DIY club, the more we practice, ________ we become.
A．the worse B．the worst C．the better D．the best
【答案】C
【详解】句意：在一个DIY俱乐部，我们练习得越多，我们就会变得越好。
考查比较级。worse更糟；worst最糟；better更好；best最好。根据“the more we practice, …we become.”可知这里是“the+比较级，the+比较级”的结构，排除B、D；根据常识可知，练习越多，就变得更好，应用better，故选C。
4． The National Library of China is ________ public library in Asia.
A．large B．larger C．largest D．the largest
【答案】D
【详解】句意：中国国家图书馆是亚洲最大的公共图书馆。
考查最高级。large大的，原级；larger更大的，比较级；largest最大的，最高级；the largest最大的，最高级。根据“in Asia”可知，此处含比较范围，在亚洲境内的图书馆，三者以上的比较用最高级，形容词最高级前加定冠词the。故选D。
5． Lingling is one of ________ students in my class. She is always ready to offer help.
A．helpful B．more helpful C．less helpful D．the most helpful
【答案】D
【详解】句意：玲玲是我班上最乐于助人的学生之一。她总是乐于提供帮助。
考查形容词最高级用法。根据“one of…”可知，此处为“one of the+形容词最高级+名词复数”的结构，表示“最……的之一”，故此处应用形容词最高级。故选D。
6． Journey to the West is one of ________ classic novels in China. People like reading it.
A．famous B．more famous C．the more famous D．the most famous
【答案】D
【详解】句意：《西游记》是中国最著名的经典小说之一。人们喜欢读它。
考查形容词最高级。“one of+the+形容词最高级+可数名词复数”表示“最……的……之一”，固定句型。故选D。
7． It is said that smart technology is making people ________ than before and doing them harm.
A．lazy B．lazier C．laziest D．the laziest
【答案】B
【详解】句意：据说，智能技术正在使人们比以前更懒惰，并对他们造成伤害。
考查比较级。根据“than”可知此处用比较级。故选B。
8．—So who do you think should get the job, Frank or Ben
—Well, Frank is ________. I think he should get the job.
A．outgoing B．more outgoing C．much outgoing D．the most outgoing
【答案】B
【详解】句意：——你认为谁应该得到这份工作，弗兰克还是本？——嗯，弗兰克更外向。我认为他应该得到这份工作。
考查比较级。根据“Frank or Ben”可知，两者之间的比较，应用比较级，只有B选项符合。故选B。
9． When seeing the Shenzhou-18 manned spaceship flying into the sky, my father was ______ than any one of us.
A．more excited B．more exciting C．the most excited D．the most exciting
【答案】A
【详解】句意：当看到神舟十八号载人飞船飞向天空时，我父亲比我们任何人都兴奋。
考查形容词辨析和比较级。more excited更兴奋的；more exciting更令人兴奋的；the most excited最兴奋的；the most exciting最令人兴奋的。根据“than”可知，应用比较级；再根据“my father”可知，形容词人的感受要用-ed结尾的形容词，即excited符合题意。故选A。
10．—How are you feeling today, young man
—Much ________. The medicine works. Thank you, Doctor.
A．best B．better C．worst D．worse
【答案】B
【详解】句意：——年轻人，你今天感觉怎么样？——好多了。这药有效。谢谢您，医生。
考查形容词辨析和比较级的用法。best最好的；better更好的；worst最坏的；worse更坏的。根据“The medicine works.”可知，药有效，所以感觉更好了，much修饰形容词比较级，故选B。
11． Many people think eating at home is ________ than eating in the restaurant.
A．healthy B．healthier C．healthiest D．the healthiest
【答案】B
【详解】句意：许多人认为在家吃饭比在餐馆吃饭更健康。
考查形容词比较级。根据“than”可知，应使用形容词比较级，故选B。
12．—Look! The lake is clean. I never throw litter into it.
—If everyone does this, it would be ________.
A．dirtier B．the dirtiest C．cleaner D．the cleanest
【答案】C
【详解】句意：——看！这个湖很干净。我从不往里面扔垃圾。——如果每个人都这样做，它会更干净。
考查形容词辨析以及比较级。dirtier更脏；the dirtiest最脏；cleaner更干净；the cleanest最干净。根据“I never throw litter into it.”以及“If everyone does this, it would be”可知如果每个人都不往湖里扔垃圾，它会更干净，故此处用比较级cleaner。故选C。
13． In the exam, the _________ you are, the fewer mistakes you’ll make.
A．careful B．carefully C．more carefully D．more careful
【答案】D
【详解】句意：在考试中，你越仔细，你犯的错误就越少。
考查形容词比较级。careful仔细的，形容词；carefully仔细地，副词。此空作are的表语，应用形容词。the+比较级，the+比较级，表示“越……，越……”，故选D。
14．—I really like yesterday’s dragon boat race. What about you
—Me too. It’s ________ one I have ever seen.
A．a more boring B．a more wonderful
C．the most boring D．the most wonderful
【答案】D
【详解】句意：——我真的很喜欢昨天的龙舟赛。那你呢？——我也是。这是我见过的最棒的一个。
考查形容词辨析和形容词最高级。boring无聊的；wonderful极好的。根据“I really like yesterday’s dragon boat race”以及“Me too”可知觉得龙舟赛很好，根据“I have ever seen”可知是自己见过的最好的一个龙舟赛，故此处用最高级。故选D。
15． Huahua is one of ________ pandas.
A．cute B．cuter C．cutest D．the cutest
【答案】D
【详解】句意：花花是可爱的熊猫之一。
考查形容词最高级。one of the+形容词最高级+复数名词，表示“最……之一”，此空应填the cutest，故选D。
16． What a lovely reading room! It’s one of ________ in our school.
A．nice B．nicer C．nicest D．the nicest
【答案】D
【详解】句意：这间阅览室真漂亮！它是我们学校最好的阅览室之一。
考查形容词最高级的用法。根据“one of”可知，考查“one of+the+形容词最高级”结构，意为“最……之一”。故选D。
17． The Qinghai Lake is ________ lake in China. It is in Qinghai Province.
A．large B．larger C．largest D．the largest
【答案】D
【详解】句意：青海湖是中国最大的湖泊。它在青海省。
考查最高级。根据“in China”可知青海湖是中国最大的湖泊，用最高级，最高级前加定冠词the。故选D。
18． Jianshe Road is the ________ road in our city, especially around 8:00 am.
A．busier B．busiest C．wider D．widest
【答案】B
【详解】句意：建设路是我市最繁忙的道路，尤其是早上8点左右。
考查形容词辨析及最高级。busier更忙碌的；busiest最忙碌的；wider更宽的；widest最宽的。根据“especially around 8:00 am.”可知，此处指早上8点左右的建设路非常繁忙；此处是“the+形容词最高级+比较范围（in our city）”，故用最高级。故选B。
19． Qomolangma is _________ mountain in the world.
A．high B．higher C．highest D．the highest
【答案】D
【详解】句意：珠穆朗玛峰是世界上最高的山。
考查形容词最高级。根据“in the world.”可知，此处要用最高级，最高级前要加定冠词the。故选D。
20． Today AI technology is developing ________ we can imagine. Nobody knows what will happen tomorrow.
A．much faster than B．as fast as C．more slowly than D．as slowly as
【答案】A
【详解】句意：今天，人工智能技术的发展速度比我们想象的要快得多。没有人知道明天会发生什么。
考查比较级。much faster than比……快得多；as fast as和……一样快；more slowly than比……慢得多；as slowly as和……一样慢。根据“Nobody knows what will happen tomorrow.”可知，没有人知道明天会发生什么，说明现在人工智能的发展速度非常快，比我们想象的要快得多。故选A。

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