Unit 4 Amazing Plants and Animals 单项选择检测练习题（含答案解析）2025新人教版八年级英语上册

2025新人教版八年级英语上册第四单元单项选择检测练习题
1．—Why didn’t Mr. Wu choose Jack to do the class project
—Because he always does things ________ in his class.
A．carefully B．less carefully
C．the most carefully D．the least carefully
2．Do you often communicate __________ English __________ your classmates
A．in; with B．with; in C．in; to D．with; to
3．She never imagined ________ this competition.
A．to winning B．win C．winning D．won
4．Jenny became ________ girl in her class in Grade Six.
A．the tallest B．taller C．tall D．as
5．The Yangtze River is one of ________ rivers in the world.
A．long B．longer C．the longest D．the longer
6．Basketball is so popular a game in the world and ______ people play it for fun and exercise.
A．million of B．millions of C．two millions D．two millions of
7．—What’s the city flower of Nantong
―Chrysanthemum. It’s ________ peace, nobility (高尚) and so on. And people like to enjoy them around Double Ninth Festival.
A．a symbol of B．a list of C．a cycle of D．a sense of
8．_________be a doctor, you have to study for five years in college.
A．So as to B．In order to C．So that D．Such that
9．The ________ ending of the film ________ many of the audience.
A．disappointed; disappointed B．disappointed; disappointing
C．disappointing; disappointed D．disappointing; disappointing
10．—I heard your team lost the basketball game yesterday. That’s too bad.
—Well, ________, we didn’t lose. We won!
A．quickly B．brightly C．actually D．certainly
11．—Can I use your color pencils
—Sure, feel free ________ them. I’m not using them now.
A．use B．to use C．using D．uses
12．Tony said he would be here at four o’clock, but he didn’t ______________ until half past six.
A．go B．appear C．move D．start
13．Tom can play soccer without ________ for an hour.
A．to stop B．stoping C．stopping D．stop
14．She is an ________ girl. She comes from ________.
A．African; African B．African; Africa
C．Africa: Africa D．Africa: African
15．How to connect this part ________ that part is a big problem.
A．of B．for C．with D．from
16．Tim told his father he got an “A” in the math test, but ________ he didn’t pass it.
A．at last B．in fact C．at least D．of course
17．My sister runs every morning ________ get fat.
A．in order not to B．in order to
C．doesn’t in order to D．not in order to
18．About seventy percent of the population in China ________ farmers.
A．is B．be C．are D．will be
19．Everyone plays a part ________ the environment.
A．to save B．saved C．for saving D．in saving
20．Where’s Lily We are all here _______ her.
A．besides B．about C．except D．with
21．Tortoises can live ________ 100 years old but mice can’t.
A．up from B．up to C．down to D．to up
22．The young girl works in a store on weekends.
A．library B．garden C．shop
23．It’s _________ for all of you to understand the _________ of the wetlands.
A．importance; important B．important; important
C．important; importance D．importance; importance
24．The butterflies are still ________ after the cold winter. Now the forest is ________.
A．lively; lively B．alive; alive C．alive; lively D．lively; alive
25．We need to ________ to save wild animals in danger.
A．take off B．take down C．take action D．take after
26．—________ does a baby panda ________
—About 100 grams.
A．How heavy; weight B．How much; weigh
C．How many; weigh D．How much; weight
27．There is ________ ant on the ground. ________ ant is looking for food.
A．a; The B．an; The C．/; / D．an; /
28．Miss Li was always late for work. ________ this reason, she lost her job.
A．For B．On C．With D．Of
29．After ________ shopping, Judy went home with ________.
A．four hour’s; happy B．four hours; happiness
C．four-hour; happiness D．four hours; happy
30．The number of the students in our school ________ about 2,000 and a number of them ________ from the countryside.
A．is; are B．are; is C．is; is D．are; are
答案解析
1．—Why didn’t Mr. Wu choose Jack to do the class project
—Because he always does things ________ in his class.
A．carefully B．less carefully
C．the most carefully D．the least carefully
【答案】D
【详解】句意：—— 为什么吴老师没选杰克做班级项目？—— 因为他在班里做事总是最不认真。
考查副词最高级。根据 “in his class” 可知，比较范围是三者及以上，用最高级。根据“Why didn’t Mr. Wu choose Jack to do the class project ”说明杰克做事最不认真。故选 D。
2．Do you often communicate __________ English __________ your classmates
A．in; with B．with; in C．in; to D．with; to
【答案】A
【详解】句意：你经常和同学们用英语交流吗
考查介词。in穿着，在……里面；with用，和；to到。固定搭配“in English 用英语” 和“communicate with sb. 与某人交流”。故选A。
3．She never imagined ________ this competition.
A．to winning B．win C．winning D．won
【答案】C
【详解】句意：她从未想过会赢得这场比赛。
考查非谓语动词。imagine doing sth.“想象做某事”，此处用动名词作宾语。故选C。
4．Jenny became ________ girl in her class in Grade Six.
A．the tallest B．taller C．tall D．as
【答案】A
【详解】句意：珍妮在六年级时成为她班上最高的女孩。
考查形容词最高级用法。became是系动词，后接形容词；再根据“in her class in Grade Six”可知，此处要用最高级。故选A。
5．The Yangtze River is one of ________ rivers in the world.
A．long B．longer C．the longest D．the longer
【答案】C
【详解】句意：长江是世界上最长的河流之一。
考查形容词最高级。long长的，原级；longer更长的，比较级；the longest最长的，最高级；the longer两者中较长的那个。根据“in the world”可知，句子使用“one of+the+形容词最高级+可数名词复数”，表示 “最……之一”。是在世界范围内进行比较，指的是世界上最长的河流之一。故选C。
6．Basketball is so popular a game in the world and ______ people play it for fun and exercise.
A．million of B．millions of C．two millions D．two millions of
【答案】B
【详解】句意：篮球是世界上很受欢迎的一项运动，数以百万计的人为了娱乐和锻炼而打篮球。
考查数词。million of表达错误；millions of数百万的；two millions错误表达；two millions of表达错误。million表示概数时，后加s并加of；表示确切的数量时，前用数词，后面不加s不加of。根据“...people”可知，此处应用millions of，表示“数百万的人”。故选B。
7．—What’s the city flower of Nantong
―Chrysanthemum. It’s ________ peace, nobility (高尚) and so on. And people like to enjoy them around Double Ninth Festival.
A．a symbol of B．a list of C．a cycle of D．a sense of
【答案】A
【详解】句意：——南通的市花是什么？——菊花。它象征着和平、高尚等等。人们喜欢在重阳节前后欣赏它们。
考查介词短语。a symbol of……的象征；a list of一系列的；a cycle of……的周期；a sense of一种……的感觉。根据“Chrysanthemum. It’s ... peace, nobility (高尚) and so on”可知，是指菊花是和平、高尚等的象征。故选A。
8．_________be a doctor, you have to study for five years in college.
A．So as to B．In order to C．So that D．Such that
【答案】B
【详解】句意：为了成为一名医生，你必须在大学里学习五年。考查介词短语。在so that 或 such that中，that后面是状语从句，不能是动词原形，排除C、D选项；in order to＋动词原形和so as to＋动词原形的意思都是"为了"，都可以放在句中，in order to 可以放在句首，而so as to则不可，排除A选项；再结合句意"为了成为一名医生，你必须在大学里学习五年"可知，要用in order to；故答案选B。
9．The ________ ending of the film ________ many of the audience.
A．disappointed; disappointed B．disappointed; disappointing
C．disappointing; disappointed D．disappointing; disappointing
【答案】C
【详解】句意：这部电影令人失望的结局使许多观众失望。
考查形容词辨析。disappointed感到失望的，修饰人；disappointing令人失望的，修饰事或物。第一个空位于ending of the film前，修饰事，用disappointing；第二个空位于audience前，修饰人，用disappointed。故选C。
10．—I heard your team lost the basketball game yesterday. That’s too bad.
—Well, ________, we didn’t lose. We won!
A．quickly B．brightly C．actually D．certainly
【答案】C
【详解】句意：——我听说你们队昨天输了篮球赛。那太糟糕了。——嗯，其实我们并没有输。我们赢了！
考查副词辨析。quickly迅速地；brightly明亮地；actually实际上；certainly当然。根据“Well…we didn’t lose. We won!”可知，实际上，“我们”赢了比赛，没有输。故选C。
11．—Can I use your color pencils
—Sure, feel free ________ them. I’m not using them now.
A．use B．to use C．using D．uses
【答案】B
【详解】句意：——我可以用你的彩色铅笔吗？——当然，请随意使用它们。我现在不用它们了。
考查非谓语动词。feel free to do sth.“随意做某事”，固定搭配。故选B。
12．Tony said he would be here at four o’clock, but he didn’t ______________ until half past six.
A．go B．appear C．move D．start
【答案】B
【详解】句意：托尼说过他将四点到这里，结果到六点半才出现。
A. go 去；B. appear 出现；C. move 移动；D. start开始。结合句意可知，答案为B。
13．Tom can play soccer without ________ for an hour.
A．to stop B．stoping C．stopping D．stop
【答案】C
【详解】句意：汤姆不停地踢了一个小时足球。
考查非谓语动词。介词without后加动名词stopping。故选C。
14．She is an ________ girl. She comes from ________.
A．African; African B．African; Africa
C．Africa: Africa D．Africa: African
【答案】B
【详解】句意：她是一个非洲女孩。她来自非洲。
考查形容词和名词。African非洲的；Africa非洲。第一个空修饰名词“girl”，用形容词African“非洲的”，作前置定语；根据“comes from”可知第二个空应填名词Africa“非洲”，指的她来自非洲。故选B。
15．How to connect this part ________ that part is a big problem.
A．of B．for C．with D．from
【答案】C
【详解】句意：如何将这部分与那部分连接是个大问题。
考查介词词义辨析。of……的；for为了；with和……一起；from来自。“connect... with...”为固定短语，意为“把……与……连接”，符合本句句意，其他介词无此用法。故选C。
16．Tim told his father he got an “A” in the math test, but ________ he didn’t pass it.
A．at last B．in fact C．at least D．of course
【答案】B
【详解】句意：蒂姆告诉他的父亲，他数学考试得了“A”，但事实上他没有通过。
考试介词短语。at last最后；in fact事实上；at least至少；of course当然。根据“but”可知，句意发生了转折，指事实上他没有通过考试。故选B。
17．My sister runs every morning ________ get fat.
A．in order not to B．in order to
C．doesn’t in order to D．not in order to
【答案】A
【详解】句意：我姐姐每天早上跑步是为了不发胖。
考查动词不定式的否定式。in order to do sth.意为“为了做某事”，其否定形式是in order not to do sth.“为了不做某事”。根据“My sister runs every morning”可知，此处应表示每天早上跑步是为了不发胖。故选A。
18．About seventy percent of the population in China ________ farmers.
A．is B．be C．are D．will be
【答案】C
【详解】句意：在中国大约70%的人口是农民。
考查主谓一致。当“population”作主语时，谓语动词用单数形式；当“population”前面有百分数修饰时，谓语动词用复数形式，本句的主语部分为“seventy percent of the population”，谓语动词应用复数形式，本题时态为一般现在时，故选C。
19．Everyone plays a part ________ the environment.
A．to save B．saved C．for saving D．in saving
【答案】D
【详解】句意：每个人都为保护环境出一份力。
考查介词用法。play a part in doing sth“在做某事中起作用”，固定搭配，介词后接动名词形式。故选 D。
20．Where’s Lily We are all here _______ her.
A．besides B．about C．except D．with
【答案】C
【详解】句意：莉莉在哪里？我们都在这儿，除了她。A. besides除---之外（包括在内）； B. about 关于； C. except 除---之外（不包括在内）； D. with和，带有；根据Where’s Lily We are all here 莉莉在哪里？我们都在这儿，可知莉莉和我们不一样；故选C
21．Tortoises can live ________ 100 years old but mice can’t.
A．up from B．up to C．down to D．to up
【答案】B
【详解】句意：乌龟可以活到100岁但是老鼠不能。
考查介词短语辨析。up from从……开始提升；up to多达；down to降低到。根据“100 years old”并结合常识可知，此处应表示乌龟可以存活到100岁，用介词短语up to。故选B。
22．The young girl works in a store on weekends.
A．library B．garden C．shop
【答案】C
【详解】store意为“商店”，与shop意思相近。故选C。
23．It’s _________ for all of you to understand the _________ of the wetlands.
A．importance; important B．important; important
C．important; importance D．importance; importance
【答案】C
【详解】句意：理解湿地的重要性对你们所有的人来说是重要的。It’s+形容词+for sb to do sth做某事对某人来说是怎样的。可知第一个空用形容词，important重要的，形容词；根据the of the wetlands湿地的重要性，可知第二个空用名词，importance重要性，名词；故选C
24．The butterflies are still ________ after the cold winter. Now the forest is ________.
A．lively; lively B．alive; alive C．alive; lively D．lively; alive
【答案】C
【详解】句意：寒冷的冬天过后，蝴蝶还活着。现在森林很热闹。
考查形容词辨析。lively活泼的、充满活力的、生机勃勃的；alive活着的、有活力的。根据“The butterflies are still ... after the cold winter.”可知，此处表示“蝴蝶还活着”，故用alive；根据“Now the forest is ...”可知，森林里很热闹，指生机勃勃的，故用lively。故选C。
25．We need to ________ to save wild animals in danger.
A．take off B．take down C．take action D．take after
【答案】C
【详解】句意：我们需要采取行动来拯救处于危险中的野生动物。
考查动词短语。take off起飞；take down拿下；take action采取措施；take after长得像。根据“save wild animals in danger.”可知是采取措施拯救处于危险中的野生动物。故选C。
26．—________ does a baby panda ________
—About 100 grams.
A．How heavy; weight B．How much; weigh
C．How many; weigh D．How much; weight
【答案】B
【详解】句意：——熊猫宝宝有多重？——大约100克。
考查特殊疑问句。how heavy多重；how much多少，对不可数名词的量进行提问；how many多少，对可数名词的数量进行提问；weight重量，名词；weigh重，动词。根据“About 100 grams.”可知，此处是对重量进行提问，提问物体的重量用“How much+did+主语+weigh”。故选B。
27．There is ________ ant on the ground. ________ ant is looking for food.
A．a; The B．an; The C．/; / D．an; /
【答案】B
【详解】句意：地上有一只蚂蚁。这只蚂蚁正在寻找食物。
考查冠词用法。a表泛指，不定冠词，用于以辅音音素开头的单词前；The表特指，定冠词；an表泛指，不定冠词，用于以元音音素开头的单词前；/表示不填，零冠词。第一空，根据“There is … ant …”可知，此处是指有一只蚂蚁，应用不定冠词表泛指，且“ant”是以元音音素开头的单词，应用an修饰，排除A和C；第二空，此处的“ant”指代前文提到过的那只蚂蚁，应用“the”表特指，位于句首，首字母要大写，排除D。故选B。
28．Miss Li was always late for work. ________ this reason, she lost her job.
A．For B．On C．With D．Of
【答案】A
【详解】句意：李小姐上班总是迟到。由于这个原因，她失去了工作。
考查连词和介词辨析。For因为、由于，连词；On在……上；With和某人一起；Of……的。根据空后“this reason”可知，应是由于这个原因。故选A。
29．After ________ shopping, Judy went home with ________.
A．four hour’s; happy B．four hours; happiness
C．four-hour; happiness D．four hours; happy
【答案】C
【详解】句意：购物四个小时后，朱迪高兴地回家了。
考查复合名词当定语。根据语境，空格1指“四个小时的购物”，可用名词所有格当定语，此处用复数名词的所有格—s’；也可以用复合名词当定语，基数词和名词之间要有连字符隔开，且名词只能用单数形式；所以，排除选项A、B、D；空格2在介词后面，填名词。故选C。
30．The number of the students in our school ________ about 2,000 and a number of them ________ from the countryside.
A．is; are B．are; is C．is; is D．are; are
【答案】A
【详解】句意：我们学校的学生大约有2000人，其中很多来自农村。
考查主谓一致。the number of… “……的数量”，谓语动词用单数形式 is；a number of…“许多的……”，谓语动词用复数形式are。故选A。