Unit 1 This is me-2026-2027学年八年级英语上册词汇精讲精练（外研版）

Unit 1 This is me 词汇精讲精练 核心词汇概览： suppose bright crowded disaster therefore instead instead of although quickly truly;paint already difference successful scientific 词汇精讲 序号 单词 词汇讲解 suppose 释义：.猜想；假定；认为 /se'pauz/ 词形变化：supposes(三单)；supposed(过去式/分词)；supposing (现在分词) 搭配：be supposed to do sth.应该做某事；suppose(hat)从句 词根：前缀sup-(下)+词根po8-(放置)一放在下面一假设 例句：I suppose he is right../You are supposed to finish your homework. 我猜想他是对的。/你应该完成你的作业。 2 bright 释义：ad明亮的：聪明的；鲜艳的 /brart/ 词形变化：brighter(比较级)；brightest(最高级)；brightly (adv.);brightness (n.) 搭配：bright future光明的未来：bright color亮色 词根：无特定词根，需记忆 例句：The sun is bright./She is a bright student. 太阳很亮。/她是一个聪明的学生。 3 crowded 释义：ad.拥挤的 /'kraudId/ 词形变化：crowd(n./v.);crowding(现在分词) 搭配：be crowded with挤满. 词根：cowd(人群)+后缀-ed 例句：The bus is crowded../The room was crowded with people.. 公交车很拥挤。/房间里挤满了人。 4 disaster 释义：n.灾难；灾祸 /dI'za:sta(r)/ 词形变化：disastrou.s(ad山.灾难性的) 搭配：natural disaster自然灾害；disaster area灾区 词根：前缀ds-(坏)+词根aster(星星)→灾星→灾难 例句：Earthquake is a natural disaster.. 地震是一种自然灾害。 therefore 释义：adk.因此；所以 /'ieaf6:)/ 词形变化：无 搭配：常用于句首或句中，表示因果 词根：here+fore(前面)→在那里前面→因此 例句：He was late;therefore,he missed the bus. 他迟到了，因此错过了公交车。 6 instead 释义：adw.代替；反而 /In'sted/ 词形变化：无 搭配：常放句末：instead of为介词短语，后接名词/代词/动名词 词根：m+stead(位置)一在位置上→代替 例句：Idon't like tea;give me coffee instead. 我不喜欢茶：给我咖啡代替。 instead of 释义：prep.代替；而不是 /m'sted av/ 搭配：后接名词、代词、动名词 注意：n.stead是副词，instead of是介词短语 例句：We'Ⅱgo by bus instead of by car. 我们将乘公交车去，而不是乘车。 8 although 释义：con.虽然；尽管 /l'ǒa/ 词形变化：无 搭配：不与but连用，可与yet/st连用 词根：al-(全部)+though→尽管 例句：Although it rained,we still went out. 虽然下雨了，我们仍然出去了。 9 quickly 释义：adv.快速地 /'kwIkli/ 词形变化：quick(ad);quicker(比较级)；quickest(最高级) 搭配：as quickly as possible尽可能快 词根：quick+副词后缀y 例句：He ran quickly. 他跑得快。 10 truly 释义：adk.真正地； 真诚地 /'tru:li/ 词形变化：tue(ad.);tuth(n);tuer(比较级)；truest(最高级) 搭配：uly sony真的很抱歉；Yours truly(信末用语》 词根：ue去掉e加y 例句：I truly believe you. 我真正相信你。 11 paint 释义：v.绘画；涂油漆；n.油漆 /pernt/ 词形变化：paints(三单)；painted(过去式/分词)；painting(m. 油画)；painter(m.画家) 搭配：paint sth.+颜色；paint a picture 词根：来自拉丁语pingere 例句：She painted the wall blue,. 她把墙漆成了蓝色。 12 already 释义：adv,已经 /:l'redi/ 词形变化：无 搭配：用于肯定句，惊讶时可用于疑问句 词根：al-(全部)+ready(准备好的) 例句：I have already finished my homework. 我已经完成了我的作业。 13 difference 释义：n.差异：不同 /'difrans/ 词形变化：different(ad.)；differently(ad.);；differ() 搭配：make a difference有影响；the difference between A and B 词根：前缀dis-(分开)+词根fr（带来)+名词后缀-emce 例句：Can you tell the difference between the two? 你能分辨出两者之间的区别吗？ 14 successful 释义：ad.成功的 /sak'sesfl/ 词形变化：success(n.);successfully(adv.);succeed(v) 搭配：be successful in doing sth..成功做某事 词根：success+形容词后缀-fl 例句：He is successful in his career: 他在事业上很成功。 15 scientific 释义：ad山.科学的 /saran'trfik/ 词形变化：science(n.);scientist(n.);scientifically(adv.) 搭配：scientific research科学研究：scientific method科学方法 词根：词根sci-(知道)+-ent+-ifc一知识的一科学的 例句：We should do scientific experiments carefully.. 我们应该认真做科学实验。 二、专项训练 (一)单句填空（用所给词的适当形式填空） 1.You are (suppose)to arrive on time. 2.The room is so (crowd)that I can't move. 3.The (bright)of the sun hurts my eyes. 4.The earthquake was a terrible （disaster). 5.He studied hard; (therefore),he passed the exam. 6.She chose to walk (instead of)taking a bus. 7 (although)it rained,we enjoyed the trip. 8.He runs very （(qick) 9.1 (true)appreciate your help. 10.The artist (paint)a beautiful picture yesterday. 11.Have you (already)finished your homework? 12.There is a big (different)between the two pictures. (二)短文填空（用所给词的适当形式填空) Last week,we did a 1. (science)experiment.It was quite 2. (success) because we got the expected result.We had to work 3. (quick)and carefully. 4. (although)we made some mistakes at first,we didn't give up.The teacher said we were 5. (true)brave.She also told us that practice makes a big 6. (different).I 7. (suppose)we will do more experiments.Next time,I will try to paint a picture 8. (instead of)just observing. (三)短文选词填空（用方框中所给单词的适当形式填空，每词限用一次，每空限填一 词) 方框词汇：disaster,crowded,although,quickly,tly,difference,therefore,suppose, scientific,paint,instead of,bright Last week,there was a terrible 1. in the city.Many buildings fell down.The streets were 2. with people and cars.3. it was dangerous,the rescue workers came 4. and worked 5. to save people.The 6. their work made was huge.7. many lives were saved.One worker said,"I 8. everyone can learn first aid."Another worker said,"We should learn 9. knowledge."After the rescue,they 10. the walls with 11. colors to cheer people up.Some people gave thanks 12. of just waiting.I suppose that we will rebuild the city soon. (四)完成句子（根据汉语意思，用单词或短语完成下列英文句子） 1.You finish your homework first..(应该) You are supposed to finish your homework first. 2.The room is too (拥挤的) The room is too crowded. 3.The flood was a terrible (灾难) The flood was a terrible disaster. 4.He exercises every day; he is very healthy.(因此) He exercises every day;therefore,he is very healthy. 5.She chose to walk taking a bus.(而不是) She chose to walk instead of taking a bus. 6: it rained,they still went to the park.(虽然) Although it rained,they still went to the park. 7.He runs very (快速地) He runs very quickly. 8.1 appreciate your help.(真正地) I truly appreciate your help. 9.He has finished his work.（已经) He has already finished his work 10.The sun is very today.(明亮的) The sun is very bright today 11.He a picture yesterday.( He painted a picture yesterday. 12.The experiment was very 成功的) The experiment was very successful. 三、参考答案 (一)单句填空 1.supposed,2.crowded,3.brightness;4.disaster;5.therefore;6.instead of, 7.Although;8.quickly;9.truly;10.painted;11.already;12.difference (二)短文填空 1.scientific;2.successful;3.quickly;4.Although;5.truly;6.difference;7.suppose; 8.instead of (三)短文选词填空 1.disaster;2.crowded;3.Although;4.quickly;5.truly;6.difference;7.Therefore; 8.suppose;9.scientific;10.painted,11.bright;12.instead of (四)完成句子 1.are supposed to;2.crowded;3.disaster,4.therefore;5.instead of;6.Although, 7.quickly;8.truly;9.already;10.bright;11.painted;12.successful