【单元考点培优】Unit 6 Earth and Beyond 专题09 改写句子-2026-2027学年八年级英语上册单元复习考点培优仁爱科普版(新教材)(含答案解析)

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【单元考点培优】Unit 6 Earth and Beyond 专题09 改写句子-2026-2027学年八年级英语上册单元复习考点培优仁爱科普版(新教材)(含答案解析)

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/ 让学习更有效 新课备课备考 | 英语学科
/ 让学习更有效 新课备课备考 | 英语学科
2026-2027学年八年级英语上册单元复习考点培优仁爱科普版(新教材)
Unit 6 Earth and Beyond
专题09 改写句子
学校:___________姓名:___________班级:___________考号:___________
1.We will plant more trees. It can prevent soil erosion. (用so that合并句子)
We will plant more trees ________ ________ we can prevent soil erosion.
2.Nelly is 1.6 meters tall. Lisa is 1.7 meters tall. (合并为一句话)
Lisa ________ than Nelly.
3.Scientists launch satellites to monitor the earth every year.(改为被动语态)
Satellites ________________ by scientists to monitor the earth every year.
4.We must protect the Earth’s natural resources. (改为否定句)
We ________________ protect the Earth’s natural resources.
5.She was watching TV when the power went off. (改为否定句)
_________________________________________
6.This book is interesting. That book is more interesting. (合并为一句)
That book is ________ ________ ________ this one.
7.This is the new spacecraft. It was sent to Mars last year. (合并为定语从句)
This is the new spacecraft ________ ________ sent to Mars last year.
8.Scientists discovered water on Mars in 2008.(用 since 2008 改写句子)
Scientists ________ ________ water on Mars since 2008.
9.The white shirt is 80 yuan, and the red one is 90 yuan. (合并为一句)
The white shirt is ________ ________ the red one.
10.Space exploration is very important for human development. (改为感叹句)
________ ________ space exploration is for human development!
11.People built this spaceship for Mars exploration. (改为被动语态)
This spaceship ________ ________ for Mars exploration.
12.He has worked as an astronaut for 10 years.(用since 2014改写句子)
He ________ ________ as an astronaut since 2014.
13.Man-made satellites help us forecast the weather. (改为被动语态)
We ________ ________ by man-made satellites to forecast the weather.
14.People launched the first artificial satellite in 1957. (改为被动语态)
The first artificial satellite ________ ________ in 1957.
15.It rained heavily. They still went to the park. (改为复合句)
________ ________ rained heavily, they still went to the park.
16.We began to learn about space science in 2015.(用 since 2015 改写句子)
We ________ ________ about space science since 2015.
17.China launched its first man-made satellite in 1970. (用since 1970改写句子)
China ________ ________ its first man-made satellite since 1970.
18.Iguazu Falls is big. Other waterfalls in South America are not so big.(改写为比较级句子)
________________________________________________
19.The Qiantang tides are fast. Other river tides are slow. (改为比较级)
________________________________________________
20.This trip is interesting. That trip is not so interesting. (比较级改写)
________________________________________________
21.She jumped high. Her brother jumped higher. (合并为一句)
Her brother ________ ________ ________ she did.
22.The red box is heavy. The blue box is heavier. (合并为一句)
The blue box is ________ ________ the red one.
23.Bob is fourteen years old. Alan is ten years old. (用比较级改写句子)
Bob is four years ________ ________ Alan.
24.The red bike is 200 dollars. The blue bike is 250 dollars. (合并为一句,用比较级)
The red bike is ________ ________ the blue one.
25.Peter had a fever. He got good grades in the exam.(用although合并为一句)
_____________________________________
26.Tony has ten storybooks. Jimmy has five storybooks. (合并为一个句子 )
Tony has ______ storybooks ______ Jimmy.
27.The life on the Earth is not pleasant enough. The life on Mars is pleasant. (合并两句句子)
The life on Mars is ________________________________ the one on the Earth.
28.Green Street is the longest street in town. (改为同义句)
Green Street is ________ any other street in town.
29.They are exploring the universe. (改为否定句)
They ________ ________ the universe.
30.The moon is very far from the earth. (改为感叹句)
________ ________ the moon is from the earth!
31.The earth is the only known planet with life. (改为一般疑问句)
________ the earth the only known planet with life
32.Vera is heavier than Anna. Anna is heavier than Kate. (合并为一句话)
Vera is ________ ________ of the three.
33.I’m twelve years old. My sister is eight years old. (用比较级合并为一句话)
I’m ________ ________ ________ than my sister.
34.Jack didn’t get to school as early as I did. (改为同义句)
I got to school ___________ ___________ Jack did.
35.He was tired. He still helped his neighbor carry the heavy boxes. (合并为一句话)
___________________________________________
36.Lily has less food than any other student in her class.
Lily has ________ ________ food in her class.
37.Tony has ten storybooks. Jimmy has five storybooks. (合并为一个句子)
Tony has five ________ storybooks ________ Jimmy.
38.This stone is two kilos. That stone is six kilos. (合并成一个句子)
That stone is four ________ ________ than this one.
39.This kite is not as expensive as that one. (两句合并为一句)
This kite is ________ ________ that one.
40.Mr. Land is 40 years old. And Mrs. Land is 38 years old.(改写成一句)
Mr. Land is two ________ ________ than Mrs. Land.
41.The Yangtze River is very long. (加上in China后用形容词比较级改写句子)
The Yangtze River is ________ the other rivers in China.
42.Having a cold feels terrible. Having a toothache feels more terrible. Having a fever feels the most terrible. (合并成一句)
Having a fever feels ________ ________ ________ having a cold ________ a toothache.
43.Tom is tall, but Mike is taller.(合并为一句)
Mike is ________ ________ Tom.
44.Linda is twelve years old. Tina is ten years old. (合并成一句话)
Linda is _________ _________ _________ than Tina.
45.Tom is the funniest boy in our class.(用比较级改写句子)
Tom is ________ than any other ________ in our class.
46.This river is twenty meters wide. That river is thirty meters wide.(合成一个句子)
That river is ________ ________ ________ ________ this river.
47.Larry is 1.7 metres tall. Jeff is 1.8 metres tall.(改为比较级)
Larry is ________ ________ Jeff.
48.Lucy is 13 years old. Ann is 15 years old. (合成一句话)
Lucy is two years ______ ______ Ann.
49.Mike’s hair is 5cm long. Jack’s hair is 6cm long. (合并成一句)
Mike’s hair is ________.
50.The Yangtze River is very long. (用形容词比较级扩写句子)
The Yangtze River is ________ than other rivers in China.
51.I have long hair. She has short hair. (合为一句)
My hair is _______ than _______.
52.English isn’t as difficult as math. (改为同义句)
Math is ________ ________ than English.
53.The red coat is 120 yuan. The blue coat is 122 yuan. (改为含比较级的句子)
The red coat is ________ ________ ________ than the blue one.
54.I am fat. My friend is thin. (改为含有比较级的句子)
My friend ________ ________ ________ me.
55.Jimmy did the best of all the students in the composition match.
In the composition match, Jim did ________ than ________ other student.
56.I think Peter is smart. (用than his brother改为比较句)
I think Peter is ________ than his brother.
57.Sara is not so outgoing as Tara. (用比较级改写句子)
Tara is ______ ______ than Sara.
58.Sam is tall, but Tom is short.(用比较级改写句子)
Tom is _______________________ Sam.
59.There will be few cars and many buses in the future. (用比较级改写句子)
There will be ________ cars and ________ buses in the future.
60.Blue moon is worse than any other clothes store in our town. (改为最高级)
__________________________________
/ 让学习更有效 新课备课备考 | 英语学科
/ 让学习更有效 新课备课备考 | 英语学科
21世纪教育网(www.21cnjy.com)
21世纪教育网(www.21cnjy.com)
参考答案及试题解析
1.so that
【解析】句意:我们要种更多树。这样能防止水土流失。原句两个简单句,用so that引导目的状语从句,表达种树的目的,so that意为“以便,为了”,将it改为we,其余成分can prevent soil erosion保持不变。
2.is taller
【解析】句意:Nelly身高1.6米,Lisa身高1.7米。合并为一句话,表示“Lisa比Nelly高”,“than”提示需用比较级,tall的比较级为taller,位于be动词后作表语;主语Lisa是第三人称单数,be动词用is。
3.are launched
【解析】句意:科学家们每年发射卫星来监测地球。主动语态和被动语态都表示同一动作,主语Satellites为复数,一般现在时被动语态结构为“be + 过去分词”。故填“are launched”。
4.must not
【解析】句意:我们必须保护地球的自然资源。含有情态动词must的肯定句变否定句时,在must后加not,must和not组合表示“禁止”。因题中有两个空格,不能缩写。
5.She wasn’t watching TV when the power went off.
【解析】句意:停电时她正在看电视。改为否定句需在be动词was后加not,缩写为wasn’t,其余保持不变,因此否定句为“She wasn’t watching TV when the power went off.”。
6.more interesting than
【解析】句意:这本书有趣。那本书更有趣。合并后表示“那本书比这本更有趣”,more interesting是interesting 的比较级,than表示“比”。故填more interesting than。
7.which/that was
【解析】句意:这是那艘新的航天器,它去年被送往火星。先行词the new spacecraft是表示事物的名词,用关系代词which或者that引导定语从句,在从句中作主语。原句为一般过去时的被动语态,从句时态保持不变,保留was。
8.have discovered
【解析】句意:科学家们在2008年发现了火星上有水。本句考查since引导时间状语的现在完成时改写,since 2008是现在完成时标志,主语Scientists为复数,助动词用have,动词discover变为过去分词discovered。
9.cheaper than
【解析】句意:这件白衬衫售价80元,这件红衬衫售价90元。原句给出两件衬衫的价格对比,白衬衫价格更低,合并为一句需要用形容词比较级结构,cheap的比较级是cheaper,后接than引出对比对象,构成“cheaper than”表示“比……更便宜”。
10.How important
【解析】句意:太空探索对人类发展非常重要。原句中被强调的部分是形容词短语very important,中心词是形容词important。感叹句中,修饰形容词或副词需用引导词How,其结构为:How+形容词/副词+主语+谓语!故填How;important。
11.was built
【解析】句意:人们建造这艘宇宙飞船是为了探索火星。原句谓语动词built是build的过去式,说明句子时态为一般过去时。一般过去时的被动语态结构为“was/were+过去分词”,转换后的主语This spaceship是单数,因此be动词选用was,动词build的过去分词是built。
12.has worked
【解析】句意:他已经担任宇航员10年了。原句“He has worked...”为现在完成时,表示动作从过去开始持续到现在。在此时态中,“for + 时间段” (for 10 years) 可以与“since + 时间点” (since 2014) 进行同义改写,谓语动词结构保持不变。主语He是第三人称单数,助动词用has,动词work的过去分词为worked。
13.are helped
【解析】句意:人造卫星帮助我们预报天气。原句为一般现在时主动语态,改为被动语态时也是一般现在时,主语变为“We”,be动词用“are”,“help”的过去分词为“helped”,介词“by”后接“man-made satellites”。故填are;helped。
14.was launched
【解析】句意:人们在1957年发射了第一颗人造卫星。原句是一般过去时,改为被动语态,时态保持一致,一般过去时的被动语态结构为“was/were+动词过去分词”;主语“The first artificial satellite”是第三人称单数,be动词用was;launch的过去分词为launched。
15.Although/Though it
【解析】句意:尽管雨下得很大,他们还是去了公园。原句是两个独立的简单句,要合并为复合句,需要用让步状语从句的引导词 Although/Though 来体现“虽然下雨但仍出行”的转折逻辑,位于句首需大写;后接从句主语it指代天气,构成完整的让步状语从句。
16.have learned
【解析】句意:我们从2015年开始了解太空科学。用since 2015改写句子,表示从2015年开始一直持续到现在,应用现在完成时“have/has+过去分词”;主语We为第一人称复数,助动词用have,learn的过去分词为learned。故填have;learned。
17.has launched
【解析】句意:中国在1970年发射了第一颗人造卫星。“since + 过去时间点”是现在完成时的标志,基本结构为“have/has + 过去分词”。主语China是第三人称单数,因此助动词用has,原句动词为launched(原形launch),其过去分词形式为launched。故填has;launched。
18.Iguazu Falls is bigger than any other waterfall in South America.
【解析】句意:伊瓜苏瀑布很大。南美洲其他瀑布都没有那么大。两句对比两类瀑布,根据两个句子的句意可知,要改写的句子意思为“伊瓜苏瀑布比南美洲其他瀑布都更大。”,此处要求用比较级句式;使用any other+单数名词,than引出对比范围,big比较级形式为bigger。
19.The Qiantang tides are faster than other river tides.
【解析】句意: 钱塘江潮汐很快。其他河流的潮汐很慢。原句表达两者对比,改为比较级时,可用“than”连接两个比较对象。主语“The Qiantang tides”为复数,谓语动词用“are”,形容词“fast”的比较级为“faster”,比较对象“other river tides”置于“than”之后。故填The Qiantang tides are faster than other river tides.
20.This trip is more interesting than that trip.
【解析】句意:这次旅行有趣。那次旅行没那么有趣。合并为比较级句子,表达“这次旅行比那次更有趣”。this trip作主语,be动词用is;形容词interesting是多音节词,比较级形式为more interesting;than引出对比对象that trip。
21.jumped higher than
【解析】句意:她跳得高。她哥哥跳得更高。原句表达“哥哥跳得比她高”,需用“比较级+than”结构,结合原句的一般过去时,即“Her brother jumped higher than she did.”。
22.heavier than
【解析】句意:红色的箱子很重。蓝色的箱子更重。原句表达“红色箱子重,蓝色箱子更重”,合并后需体现“蓝色箱子比红色箱子重”的比较关系。“heavy”是形容词,其比较级形式为“heavier”;表示“比……”用介词“than”。故填heavier;than
23.older than
【解析】句意:鲍勃比艾伦大四岁。原句为两个独立陈述句。用比较级合并句子,需用“形容词比较级+than”结构表示两者差异。Bob年龄更大,故用“older than”。年龄差“four years”置于比较级前作程度状语。故填older;than。
24.cheaper than
【解析】句意:这辆红色的自行车售价200美元。那辆蓝色的自行车售价250美元。此处合并为一句,表达“红车比蓝车便宜”,cheap“便宜的”,为形容词,cheaper than“比……便宜”。故填cheaper;than。
25.Although Peter had a fever, he got good grades in the exam.
【解析】句意:彼得发烧了。他在考试中取得了好成绩。原句两个简单句是让步转折关系:Peter发烧本来可能影响考试,但他依然考出了好成绩。从属连词although引导让步状语从句,不能和but同时连用,注意Although放句首时,首字母要大写,其他语序不变。
26.more than
【解析】句意:托尼有十本故事书。吉米有五本故事书。根据“Tony has ten storybooks. Jimmy has five storybooks.”可知,托尼的故事书比吉米多,用比较级结构“比较级+than”表示,more“更多的”,是many的比较级,故填more;than。
27.more pleasant than
【解析】句意:火星上的生活比地球上的生活更舒适。原句地球生活“不够舒适”,火星生活“舒适”,合并后核心是两者对比,火星生活更舒适,需用形容词比较级结构;pleasant是多音节形容词,比较级为more pleasant,搭配than 构成比较句式。故填more pleasant than。
28.longer than
【解析】句意:格林街是镇上最长的街道。改为同义句,可用比较级句型“A is + 比较级 + than + any other + 单数名词”,表示最高级含义。原句为一般现在时,Green Street是第三人称单数。故填longer than。
29.aren’t exploring
【解析】句意:他们正在探索宇宙。原句为肯定句,谓语动词是are exploring,改为否定句需在are后加not,即aren’t ,其他部分保持不变。故填aren’t;exploring。
30.How far
【解析】句意:月亮离地球非常远。原句为陈述句,要改为感叹句,感叹句常见结构有“How + 形容词/副词 + 主语 + 谓语!”和“What + (a/an) + 形容词 + 名词 + 主语 + 谓语!”。此句中中心词是“far(远的)”,所以用“How + 形容词 + 主语 + 谓语!”的结构,即How far the moon is from the earth! 故填How;far。
31.Is
【解析】句意:地球是唯一有生命的行星。原句是主系表结构,改为一般疑问句时,需将系动词is提前至句首,首字母大写。故填Is。
32.the heaviest
【解析】句意:维拉比安娜重。安娜比凯特重。根据两个比较级句子“Vera is heavier than Anna.”和“Anna is heavier than Kate.”可知,三人中Vera最重,Kate最轻。当比较三者或以上时,需使用形容词最高级。形容词heavy的最高级为heaviest,其前需加定冠词the,构成“the heaviest of the three”这一结构。故填the;heaviest。
33.four years older
【解析】句意:我十二岁,我妹妹八岁。用比较级合并为一句话,句中有than“比……”,比较级标志词,比较级基本句型为“A+be+形容词/副词的比较级+than+B.”,原句表示“我比妹妹大四岁”,old“年老的,年长的”,形容词,比较级为older,four years older“大四岁”,故填four;years;older。
34.earlier than
【解析】句意:杰克没有我那么早到学校。原句表示“我比杰克早到学校”,可用比较级结构“earlier than”来改写同义句。故填earlier;than。
35.Though he was tired, he still helped his neighbor carry the heavy boxes./Although he was tired, he still helped his neighbor carry the heavy boxes.
【解析】句意:他很累。他仍然帮邻居搬重箱子。原句包含两个分句“He was tired”和“He still helped his neighbor...”,二者存在转折关系,此处可以用“though/although”引导让步状语从句,表示“尽管他很累,但他还是帮邻居搬了那些沉重的箱子”,故填Though/Although he was tired, he still helped his neighbor carry the heavy boxes.
36.the least
【解析】句意:莉莉的食物比她班上任何其他学生的都少。原句使用了比较级“less...than any other...”来表示莉莉的食物是最少的,在改写为最高级时,需要用“the least”来替换“less than any other”,表示在莉莉的班级中,她的食物是最少的。故填the;least。
37.more than
【解析】句意:托尼有十本故事书。吉米有五本故事书。此处可改为“托尼的故事书数量比吉米多5本”,than“比”,故第一空用比较级more“更多”。故填more;than。
38.kilos heavier
【解析】句意:这块石头重两公斤,那块石头重六公斤。合并成一个句子后,表达为“那块石头比这块石头重四公斤”。four修饰复数名词“kilos”,由“than”可知,第二空用heavy“重的”的比较级“heavier”。故填kilos;heavier。
39.cheaper than
【解析】句意:这个风筝不如那个风筝贵。在比较级结构中,“not as + 形容词 + as”可以改写为直接使用反义形容词的比较级形式,not as expensive as“不如……贵”等价于cheaper than“比……便宜”。故填cheaper;than。
40.years older
【解析】句意:Land先生40岁。Land太太38岁。根据常识可知,Land先生比太太大2岁,two后接year复数,根据than可知,此处用比较级older。故填years;older。
41.longer than
【解析】句意:长江很长。根据要求,原句加上“in China”并把句子改为含形容词比较级的句子,句子可表达为“长江比中国其他的河流都长”;long“长的”,形容词,其比较级形式为longer;than“比”,用以引出比较的第二部分。故填longer than。
42.more terrible than or
【解析】句意:感冒感觉很糟糕。牙疼感觉更糟糕。发烧感觉最糟糕。改后的句子意为“发烧感觉比感冒或牙疼更糟糕。”所以此处用比较级。more terrible是terrible的比较级,介词than:比;连词or:或,它是选择连词,连接a cold和a toothache。故填more;terrible;than;or。
43.taller than
【解析】句意:汤姆很高,但是麦克更高。根据题意可知,此句是转换成比较级,“麦克比汤姆更高”,所以,应用tall的比较级taller+than。故填taller ;than。
44.two years older
【解析】句意:琳达十二岁了。蒂娜十岁了。此处可改为“琳达比蒂娜大两岁”,两岁:two years old;根据“than”可知此处用比较级。故填two;years;older。
45.funnier boy
【解析】句意:汤姆是我们班最有趣的男孩。根据“the funniest”可知考查最高级,比较级表示最高级意义为:比较级+than+any other+名词单数,形容词funny的比较级是funnier。故填funnier;boy。
46.ten meters wider than
【解析】句意:这条河有20米宽。那条河有30米宽。题目要求将两句话合并成一句话,即“那条河比这条河宽十米”。ten meters wider than意为“比……宽十米”,符合句意,故填ten;meters;wider;than。
47.shorter than
【解析】句意:拉里身高1.7米。杰夫身高1.8米。此处要求改为比较级,可以表达为“拉里比杰夫矮”,shorter意为“更矮的”,than意为“比”。故填shorter;than。
48.younger than
【解析】句意:Lucy十三岁。Ann十五岁。原句可表达为“Lucy比Ann小两岁”,用比较级,younger“较年轻的”,后跟介词than。故填younger;than。
49.shorter than Jack’s
【解析】句意:Mike的头发5厘米长。Jack的头发6厘米长。根据题干,句子可表达为“Mike的头发比Jack的头发短”,需用比较级形式。short“短的”,比较级为shorter,than“比”,用所有格形式Jack’s表示“Jack的头发”。故填shorter than Jack’s。
50.longer
【解析】句意:长江很长。由than可知,形容词long用比较级longer。故填longer。
51.longer hers
【解析】句意:我有一头长发。她留着短发。根据题干要求,合为一句表达为“我的头发比她的长”。longer“更长的”;hers“她的”,名词性物主代词,指代her hair。故填longer;hers。
52.more difficult
【解析】句意:英语不如数学难。原句结构为not as…as…表示“没有……那么……”;改写成同义句时,可以使用more…than…结构,表示“比……更……”。故填more;difficult。
53.a little cheaper
【解析】句意:这件红色外套120元。这件蓝色外套是122元。根据“The red coat is 120 yuan. The blue coat is 122 yuan.”可知,这件红色外套比这件蓝色外套更便宜一点,a little“一点”,cheap“便宜的”,其比较级为cheaper。故填a;little;cheaper。
54.is thinner than
【解析】句意:我很胖。我的朋友很瘦。根据题意可知,需要用比较级来表达“我的朋友比我瘦”。句型结构为“主语 + be动词 + 形容词比较级 + than + 比较对象”;句子的时态为一般现在时,主语My friend为第三人称单数,此处be动词用is;thin的比较级是thinner;than“比”。故填is;thinner;than。
55.better any
【解析】句意:吉米在作文比赛中是所有学生中最好的。the+最高级=比较级+than+any other,所以the best=better than any other。故填better;any。
56.smarter
【解析】句意:我认为Peter很聪明。用than his brother改为比较句,表达可以为“我认为Peter比他弟弟更聪明”,smarter“更聪明的”,故填smarter。
57.more outgoing
【解析】句意:Sara没有Tara那么外向。根据原句可知,Tara比Sara更外向,outgoing意为“外向的”,是多音节形容词,其比较级在词前加more。故填more;outgoing。
58.shorter than
【解析】句意:Sam很高,但是Tom很矮。根据“Sam is tall, but Tom is short.”可知Tom比Sam矮,than表示“比”,short比较级为shorter。故填shorter than。
59.fewer more
【解析】句意:未来会有很少的汽车和很多的公交车。few的比较级为fewer,many的比较级为more。故填fewer;more。
60.Blue moon is the worst clothes store in our town.
【解析】句意:蓝月亮比我们镇上的任何一家服装店都糟糕。原句是比较级,改为最高级,用结构the+形容词最高级+比较范围,worse than any other clothes store需要变为the worst clothes store“最差的服装店”。故填Blue moon is the worst clothes store in our town.
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