Unit 5 Looking into nature 单元重点词汇、词性转换、短语、句型专项练习(含解析) - 2025-2026学年外研版八年级下册英语(新教材)

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Unit 5 Looking into nature 单元重点词汇、词性转换、短语、句型专项练习(含解析) - 2025-2026学年外研版八年级下册英语(新教材)

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2026春季新版八年级下册外研版英语Unit 5 Looking into nature
单元重点词汇、词性转换、短语、句型专项练习
单元重点词性转换、短语默写
一、词性转换。
1 known adj. 已知的—(反义词)___________ adj. 不知道的,未知的
2 north n. 北;北方—__________ adj. 北部的
3 Africa n. 非洲—__________ adj. 非洲(人)的 n. 非洲人
4 believe v. 相信—__________ n. 观点—__________ n. 不信;怀疑
5 full adj. 完全的,完整的—__________ adv. 完全地;充分地;彻底地
6 lock v. 锁上;被锁住—(反义词)__________ v. 解锁
7 argue v. 争论;论证—__________ n. 论点,论据;争论
8 true adj. 符合事实的,真的,真实的—__________ n. 事实;真相—__________ adv. 真正,确实
9 upload v. 上载,上传—(反义词)__________ v. 下载
10 boiling adj. 很热的,滚热的—(反义词)__________ adj. 极冷的
11 chemistry n. 化学—__________ n. 化学家;药剂师—__________ n. 化学物质
12 end n. 末尾—__________ adj. 无数的,无限的
13 wealth n. 财富—__________ adj. 富裕的;有钱的
14 soft adj. 轻柔的,柔和的—__________ adv. 轻柔地;柔和地
二、短语翻译。
1 ._________调查    2._________有共同之处
3._________四处跑    4._________寻找
5._________数百,成百上千   6._________看起来像
7._________多亏,由于    8._________一块 / 片 / 张......
9._________在地球上    10._________不再
11._________将来    12._________随着时间的推移
13._________超过,多于    14._________过去常常某事
15._________来自    16._________......... 的发现
17. _________努力做......    18. _________揭开某事的秘密
单元专项训练
一、用括号内单词的正确形式填空。
1.The ________ (find) of the students’ sleeping time were published today.
2.They believe that he ________ (finish) his homework already.
3.Could you please give me some ________ (piece) of paper
4.I have ________ (full) understood the problem, and I can solve it in ten minutes.
5.The ________ (believe) that dinosaurs could fly has been proved by new research.
6.The Greens travelled to the forest ________ (explore) the natural world.
7.This new evidence (证据) could ________ (lock) the secret of the old case.
8.I was ________ (complete) satisfied (满意的) with the service of that hotel.
9.It’s my own ________ (believe) that playing video games too much is bad for your eyes.
10.The experiment ________ (prove) that Tom’s thinking was correct.
11.The young Chinese scientist has won several important ________ (prize) in the field of medicine.
12.The population is increasing, and it will _________ (probable) cause the shortage of drinking water.
13.Under the blue sky, _________ (villager) are working hard, and golden fields are shining like the sun.
14._________ (accord) to the report, the environment of this area has improved a lot.
15.At this time, the local people will celebrate the ________ (arrive) of the harvest (丰收).
16.After a long-distance race, the runner still looks ________ (energy) and full of spirit.
17.Let’s explore nature! It presents us with ________ (end) wonders and secrets.
18.The invention of the steam engine was inspired by the ______ (boil) water and the hot steam.
19.We should avoid ________ (hurt) small animals.
20.The world is getting ________ (crowded) these years.
21.It’s important ________ (know) more about living things.
22.We should stop ________ (pollute) the natural home of animals.
23.It’s wrong ________ (catch) butterflies for fun.
24.This castle was built ________ (hundred) of years ago.
25.Can you imagine ________ (score) another goal in the last minute of the basketball match
二、根据汉语提示完成单词。
1.The project went on ________ (顺利地) without any problems.
2.Look! A ________ (羽毛) is floating in the air.
3.Her ________(风格)of painting won first prize in the competition.
4.The library is one of the quietest places in our school. Everyone speaks ________ (轻柔地,柔和地) there.
5.The ________ (北部的) part of our country is very cold in winter.
6.The little girl is ________ (有活力的) and full of energy all day.
7.Thanks to the Karez system, people can use ________ (地下的) water to grow plants for food.
8.To make that ________ (论点) stronger, the writer adds some facts and examples.
9.Amber is a window into the past, and a key to ________ (解锁) many secrets of nature.
10.The homework seemed ________ (无数的) and the students felt very tired.
11.All the students are looking at the ________ (布告牌) to find their exam results.
12.It’s ________ (真实的) that exercise can improve our mental health.
13.Jupiter is the largest ________ (行星) in the solar system.
14.These ________ (模型) of spaceships were made by our group.
15.After the storm, people worked together to _________ (清除) the fallen trees from the streets.
16.My grandfather likes reading a ________ (报纸) after breakfast or dinner.
17.This is a ________ (化学制品) that can be used to clean the floor.
18.This kind of ancient creature is a kind of ________ (恐龙) that lived millions of years ago.
19.People in this country want to keep this traditional art form ________ (生动起来).
20.A few days ago, we decided to________ (探索) the forest this summer holiday.
21.I use some ________ (方法) to help myself remember important things.
22.The school trip plan will ________ (包括) a visit to the science museum and a picnic in the park.
23.Can you ________ (解释) how clouds turn into rain
24.Plants get nutrients from the rich ________ (土壤) under the ground.
25.Although it was tiring to clean up the room, we felt a sense of ________ (成就感) after that.
三、句子翻译。
1.停电的时候除了和家人闲聊没有什么其他事可做。
There ________ ________ ________ ________ but ________ with family when there is a power cut.
2.研究表明,他们完全是一种全新的物种。
Research shows that they are ________ ________ ________ ________ .
3.它们还帮助我们理解地球上的生物一直在变化。
They also help us understand that life ________ ________ __________ has always changed.
4.随着一声愤怒的吼叫,它张开嘴,举起覆盖着美丽羽毛的手臂。
________ an angry cry, it opens its mouth, ________ ________ beautiful feather-covered arms.
5.植物随四季生长、休眠。王(文采)教授亦是如此。
Plants ________ and ________ with the seasons. ________ does Professor Wang.
6.尽管取得了巨大的成功,王却很少考虑个人荣誉或财富。
Despite his huge ________ , Wang seldom ________ about personal ________ or wealth.
7.他手拿放大镜,仍继续他的研究,一干又是十年。
With a ________ in hand, he still ________ on with his ________ for ________ 10 years.
8.谁知道这块琥珀是否还会告诉我们更多的秘密呢?
Who knows ________ this piece of amber will tell us ________ ________ .
9.尽管取得了巨大成功,王文采却很少考虑个人荣誉和财富。
________ his huge success, Wang Wencai seldom ________ ________ personal honour or wealth.
10.83岁时,他的右眼失明了。
He ________ ________ in his right eye ________ ________ ________ ________ 83.
四、短文填空,用括号内单词的正确形式填空。
Around 1947, some boys were taking care of their goats (山羊) in the desert near the Dead Sea. One of the boys climbed up 1 hill to look for a missing goat. He saw a cave and thought the goat was inside, so he 2 (throw) a rock into the cave to make it come out. The rock made a strange sound inside the cave. It sounded 3 something breaking, so the boys went into the cave to look.
4 (lucky), the rock did not hit the goat. Instead, it hit one large box. Inside the box, the boys discovered seven very old scrolls (卷轴) with words on 5 (they). The boys thought the scrolls might be something important, 6 they were right. Researchers later found out that the scrolls were from about 2,000 years ago. People looked in many other caves nearby 7 (look) for more scrolls.
Over time, people found more than 600 scrolls in eleven different caves. Researchers think that these are some of 8 (old) writings in the world. Many researchers study these ancient 9 (treasure) even today.
The scrolls give us a window into the past. 10 happened long ago Maybe we can understand one day.Unit 5 Looking into nature 专项练习答案及解析
一、词性转换(默写答案)
1. unknown
解析:known(已知的)的反义词,加否定前缀un-,表示“未知的”。
2. northern
解析:north(名词,北)的形容词形式,在词尾加-ern,意为“北部的”。
3. African
解析:Africa(名词,非洲)的形容词形式,词尾加-n,可作形容词“非洲的”,也可作名词“非洲人”。
4. belief;disbelief
解析:believe(动词,相信)的名词形式为belief;其反义词在belief前加否定前缀dis-,即disbelief(不信;怀疑)。
5. fully
解析:full(形容词,完全的)的副词形式,词尾加-ly,修饰动词/形容词,表“完全地”。
6. unlock
解析:lock(动词,锁上)的反义词,加否定前缀un-,意为“解锁”。
7. argument
解析:argue(动词,争论)的名词形式,变e为ment,表“论点;争论”。
8. truth;truly
解析:true(形容词,真实的)的名词形式为truth(真相);副词形式为truly(真正地)。
9. download
解析:upload(动词,上传)的反义词,down-表“向下”,意为“下载”。
10. freezing
解析:boiling(形容词,很热的)的反义词,freeze(动词,冻结)变形容词为freezing(极冷的)。
11. chemist;chemical
解析:chemistry(名词,化学)表“化学家/药剂师”用chemist;表“化学物质”用chemical。
12. endless
解析:end(名词,末尾)加否定后缀-less,表“无……的”,即“无限的;无数的”。
13. wealthy
解析:wealth(名词,财富)的形容词形式,词尾加-y,意为“富裕的”。
14. softly
解析:soft(形容词,轻柔的)的副词形式,词尾加-ly,修饰动词,表“轻柔地”。
二、短语翻译(默写答案)
1. look into
解析:固定短语,意为“调查;研究”,贴合单元主题“探索自然”。
2. have sth. in common
解析:固定搭配,“有共同之处”,common为形容词“共同的”。
3. run around
解析:动词短语,“四处跑;到处跑”,around表“四处”。
4. look for
解析:固定短语,强调“寻找”的动作,区别于find(找到,表结果)。
5. hundreds of
解析:固定表达,“数百;成百上千”,hundreds后必须加of,表模糊数量。
6. look like
解析:动词短语,“看起来像”,后接名词/代词。
7. thanks to
解析:固定短语,“多亏;由于”,后接名词/代词,表原因。
8. a piece of
解析:固定搭配,修饰不可数名词,表“一块/片/张……”,复数为pieces of。
9. on the earth
解析:固定短语,“在地球上”,earth前必须加定冠词the。
10. no longer / not...any longer
解析:固定表达,“不再”,no longer放句中,not...any longer放句末。
11. in the future
解析:固定短语,“将来;未来”,future前加定冠词the。
12. over time
解析:固定短语,“随着时间的推移;久而久之”。
13. more than
解析:固定短语,“超过;多于”,同义短语:over。
14. used to do sth.
解析:固定结构,“过去常常做某事”(现在不做了),to后接动词原形。
e from
解析:固定短语,“来自”,同义短语:be from。
16. the discovery of
解析:固定表达,“……的发现”,discovery为discover(动词,发现)的名词形式。
17. try to do sth.
解析:固定结构,“努力做……;尽力做……”,强调付出努力。
18. unlock the secrets of sth.
解析:固定短语,“揭开某事的秘密”,unlock表“解开;揭开”,secret用复数表泛指。
三、用括号内单词的正确形式填空
1. findings
解析:空格后be动词为were,说明主语是复数;find(动词,发现)的名词复数形式为findings,表“发现(结果)”。
2. has finished
解析:already(已经)是现在完成时的标志词,主语he为第三人称单数,故用has+过去分词finished。
3. pieces
解析:some后接可数名词复数;piece(片)的复数形式为pieces。
4. fully
解析:空格修饰动词understood,需用副词;full的副词形式为fully。
5. belief
解析:空格前为形容词性物主代词the,后接名词;believe的名词形式为belief(观点;信念)。
6. to explore
解析:此处用动词不定式表目的,“去森林里探索自然世界”,故填to explore。
7. unlock
解析:情态动词could后接动词原形;结合句意“解开旧案的秘密”,填unlock。
8. completely
解析:空格修饰形容词satisfied,需用副词;complete的副词形式为completely(完全地)。
9. belief
解析:空格前为形容词性物主代词my own,后接名词;believe的名词形式为belief。
10. proved
解析:宾语从句中谓语动词为was(过去式),说明主句用一般过去时;prove的过去式为proved(证明)。
11. prizes
解析:several(几个)后接可数名词复数;prize(奖项)的复数形式为prizes。
12. probably
解析:空格修饰动词cause,需用副词;probable(可能的)的副词形式为probably(可能)。
13. villagers
解析:空格后be动词为are,说明主语是复数;villager(村民)的复数形式为villagers。
14. According
解析:固定短语according to(根据),句首首字母大写,故填According。
15. arrival
解析:空格前为定冠词the,后接名词;arrive(到达)的名词形式为arrival。
16. energetic
解析:look为系动词,后接形容词作表语;energy(精力)的形容词形式为energetic(有活力的)。
17. endless
解析:空格修饰名词wonders,需用形容词;end加后缀-less表“无限的”,即endless(无尽的)。
18. boiling
解析:空格修饰名词water,需用形容词;boil(沸腾)的形容词形式为boiling(沸腾的)。
19. hurting
解析:固定搭配avoid doing sth.(避免做某事),故填hurt的动名词形式hurting。
20. more crowded
解析:these years(这些年)隐含比较含义,get后接形容词比较级;crowded(拥挤的)的比较级为more crowded。
21. to know
解析:固定句型It’s+adj.+to do sth.(做某事是……的),it为形式主语,真正主语为动词不定式,故填to know。
22. polluting
解析:固定搭配stop doing sth.(停止做某事),故填pollute的动名词形式polluting。
23. to catch
解析:固定句型It’s+adj.+to do sth.(做某事是……的),故填to catch。
24. hundreds
解析:固定表达hundreds of(成百上千的),表模糊数量,hundred用复数。
25. scoring
解析:固定搭配imagine doing sth.(想象做某事),故填score的动名词形式scoring。
四、根据汉语提示完成单词
1. smoothly
解析:空格修饰动词went on,需用副词;“顺利地”对应smooth的副词形式smoothly。
2. feather
解析:空格前为不定冠词a,后接可数名词单数;“羽毛”对应feather。
3. style
解析:空格前为形容词性物主代词her,后接名词;“风格”对应style。
4. softly
解析:空格修饰动词speaks,需用副词;“轻柔地”对应soft的副词形式softly。
5. northern
解析:空格修饰名词part,需用形容词;“北部的”对应north的形容词形式northern。
6. energetic
解析:空格前为系动词is,后接形容词作表语;“有活力的”对应energetic。
7. underground
解析:空格修饰名词water,需用形容词;“地下的”对应underground。
8. argument
解析:空格前为定冠词the,后接名词;“论点”对应argue的名词形式argument。
9. unlock
解析:空格前为介词to,后接动词原形;“解锁”对应unlock。
10. endless
解析:空格前为系动词seemed,后接形容词作表语;“无数的”对应endless。
11. board
解析:空格前为定冠词the,后接名词;“布告牌”对应board。
12. true
解析:空格前为系动词is,后接形容词作表语;“真实的”对应true。
13. planet
解析:空格前为形容词最高级largest,后接可数名词单数;“行星”对应planet。
14. models
解析:空格前为these,后接可数名词复数;“模型”对应model的复数形式models。
15. clear
解析:空格前为不定式符号to,后接动词原形;“清除”对应clear。
16. newspaper
解析:空格前为不定冠词a,后接可数名词单数;“报纸”对应newspaper。
17. chemical
解析:空格前为不定冠词a,后接可数名词单数;“化学制品”对应chemical。
18. dinosaur
解析:空格前为a kind of,后接可数名词单数;“恐龙”对应dinosaur。
19. alive
解析:固定搭配keep sth. alive(让某物保持生动/存活);“生动起来”对应alive。
20. explore
解析:空格前为不定式符号to,后接动词原形;“探索”对应explore。
21. methods
解析:空格前为some,后接可数名词复数;“方法”对应method的复数形式methods。
22. include
解析:空格前为助动词will,后接动词原形;“包括”对应include。
23. explain
解析:空格前为情态动词can,后接动词原形;“解释”对应explain。
24. soil
解析:空格前为形容词rich,后接名词;“土壤”对应不可数名词soil。
25. achievement
解析:固定搭配a sense of achievement(成就感);“成就感”对应achievement。
五、句子翻译
1. was nothing to do; chat
解析:固定句型There is nothing to do but do sth.(除了做某事无事可做);when引导时间状语从句,从句为一般现在时,主句用一般过去时,故填was;but后接动词原形chat。
2. completely new species
解析:completely(完全地)修饰形容词new;new species(全新的物种),species单复数同形。
3. on the earth
解析:固定短语on the earth(在地球上),作后置定语修饰life。
4. With; holding up
解析:with表伴随,意为“随着”;现在分词holding up(举起)作伴随状语,与主语it为主动关系。
5. grow; sleep; So
解析:grow(生长)、sleep(休眠),主语plants为复数,谓语用原形;固定句型So+助动词+主语(……也是如此),主语Professor Wang为单数,助动词用does,句首填So。
6. success; thinks; honour
解析:huge后接名词success(成功);主语Wang为第三人称单数,谓语用thinks;personal后接名词honour(荣誉)。
7. magnifying glass; goes; research; another
解析:magnifying glass(放大镜);go on with one’s research(继续某人的研究),主语he为单数,谓语用goes;another+数词+名词(又……),another 10 years(又十年)。
8. if/whether; more secrets
解析:宾语从句用if/whether引导,表“是否”;more secrets(更多秘密),secret用复数。
9. Despite; thinks about
解析:despite(尽管)后接名词;think about(考虑),主语Wang Wencai为单数,谓语用thinks about。
10. went blind; at the age of
解析:go blind(失明),动作发生在过去,用一般过去时went;at the age of+数词(在……岁时)。
六、短文填空
1. a
解析:空格修饰可数名词单数hill,hill为辅音音素开头,故填不定冠词a。
2. threw
解析:全文讲述1947年的事情,用一般过去时;throw(扔)的过去式为threw。
3. like
解析:固定短语sound like(听起来像),后接名词。
4. Luckily
解析:空格位于句首,修饰整个句子,需用副词;lucky(幸运的)的副词形式为Luckily,首字母大写。
5. them
解析:介词on后接人称代词宾格;they的宾格为them。
6. and
解析:前后两句为顺承关系,“男孩们认为卷轴很重要,他们是对的”,故填连词and。
7. to look
解析:此处用动词不定式表目的,“去附近洞穴寻找更多卷轴”,故填to look。
8. the oldest
解析:in the world(在世界上)表范围,用形容词最高级;old的最高级为the oldest。
9. treasures
解析:these后接可数名词复数;treasure(珍宝)的复数形式为treasures。
10. What
解析:空格引导特殊疑问句,意为“很久以前发生了什么?”,句首首字母大写,故填What。
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