高一英语练习题词性转换
【词性转换】高中英语必修一(词性转换)

必修一词性转换Unit11.ignore vt.不理睬;忽视→ignorance n.愚昧→ignorant adj.无知的;粗鲁的2.concern vt. & n.(使)担忧;涉及;关系到;担心;关注;(利害)关系→concerned adj.担忧的→concerning prep.关于3.power n.能力;力量;权力→powerful adj.有权势的4.settle vi.安家;定居;停留vt.使安居;安排;解决→settled adj.→settlement n.安居;定居5.suffer vt. &vt.遭受;忍受;经历→suffering n.痛苦;折磨6.recover vi. &vt.痊愈;恢复;重新获得→recovery n.痊愈7.exactly adv.确实如此;正是;确切地→exact adj.精确的8.disagree vi.不同意→disagreement n.→agree反义词Unit21.office n.办公室→officer n.官员→official adj.官方的;正式的;公务的2.base vt.以……为根据n.基部;基地;基础→basic adj.基本的;基础的3.gradual adj.逐渐的,逐步的→gradually adv.逐渐地,逐步地4.identity n.本身;本体;身份→identical adj.相同的,一样的→identify v.确定;认出;鉴定5.fluent adj.流利的;流畅的→fluently adv.流利地,流畅地→fluency n.流利,流畅6.frequent adj.频繁的;常见的→frequently adv.常常;频繁地→frequency n.频率;频度7.usage n.使用;用法;词语惯用法→use n. & v.使用,利用→useful adj.有用的→useless adj. 无用的(反义词)8.command n. & vt.命令;指令;掌握→commander n.指挥员,司令员9.express v.表达→expression n.词语;表示;表达→expressive adj.富于表情的;有表现力的10.recognize vt.辨认出;承认;公认→recognizable adj.容易认出的;易于识别的→recognition n.认出;认识;识别Unit31.transport n. & vt.运输;运送→transportation n.交通工具2.prefer vt.更喜欢;选择某事物(而不选择其他事物)→preferable adj.较适合的;更可取的→preference n.偏爱;爱好;喜爱3.disadvantage n.不利条件;不便之处→advantage(反义词)4.persuade vt.说服;劝说→persuasion n.劝服→persuasive adj.劝说的;有说服力的5.graduate vi.毕业n.大学毕业生→graduation n.毕业6.organize vt.组织;成立→organized adj.有组织的→organization n.组织7.determine vt.决定;确定;下定决心→determined adj.坚决的;有决心的→determination n.决心Unit41.nation n.民族;国家;国民→national adj.国家的,民族的→nationality n.国籍2.suffering n.苦难;痛苦→suffer v.受苦,遭受3.extreme adj.极度的→extremely adv.4.injure vt.损害;伤害→injured adj.受伤的→injury n.伤害,损害5.useless adj.无用的;无效的;无益的→useful(反义词)→use v. & n.使用,利用6.shock vt. & vi.(使)震惊;震动n.休克;打击;震惊7.electricity n.电;电流;电学→electric adj.用电的;带电的;发电的→electrical adj.与电有关的;电学的8.frighten vt.使惊吓;吓唬→frightened adj.受惊的;受恐吓的→frightening adj.令人恐惧的9.judge n.裁判员;法官vt.断定;判断;判决→judgement n.判断,判决10.express vt.表示;表达n.快车;速递→expression n.表达→expressive adj.有表现力的Unit51.active adj.积极的;活跃的→actively adv.积极地→activity n.活动2.devote vt.(与to连用)献身;专心于→devoted adj.忠实的,深爱的→devotion n.奉献3.peaceful adj.和平的;平静的;安宁的→peace n.和平4.legal adj.法律的;依照法律的→illegal(反义词)5.hopeful adj.怀有希望的;有希望的→hopeless(反义词)→hope n. & v.希望6.violence n.暴力;暴行→violent adj.猛烈的,凶暴的7.equal adj.相等的,平等的→equally adv.相等地→equality n.同等,平等8.educate vt.教育;训练→educated adj.受过教育的;有教养的→education n.教育9.relative n.亲戚;亲属→relation n.关系→relationship n.关系10.terror n.恐怖;可怕的人;恐怖时期;恐怖活动→terrorism n.恐怖主义→terrorist n.恐怖分子。
Unit 3 重点单词变形,词组,短语,句型练习

Unit 3 重点单词变形,词组,短语,句型练习高一英语(人教版2019必修第一册)一、词性转换(共 10 分)1-10、(10分)1. 词性转换【小题1】(1分)1. honour n. 荣誉;尊敬;荣幸vt. 给予表扬→①adj. 光荣的;可敬的;高贵的honour“荣誉;尊敬;荣幸;给予表扬”,名词或动词,其形容词形式是honourable “光荣的;可敬的;高贵的”,故【答案】:是honourable。
【小题2】(1分)1. glory n. 荣誉;光荣;赞美→①adj. 光荣的;辉煌的;极好的glory“荣誉;光荣;赞美”,名词,其形容词形式是glorious“光荣的;辉煌的;极好的”,故【答案】:是glorious。
【小题3】(1分)1. champion n. 冠军;优胜者→①n. 锦标赛;冠军赛;冠军称号champion“冠军;优胜者”,名词,其名词形式是championship“锦标赛;冠军赛;冠军称号”,故【答案】:是championship。
【小题4】(1分)1. determine vi. &vt. 决定;确定→①n. 决心;决定→②adj. 有决心的determine“决定;确定”,动词,其名词形式是determination“决心;决定”;其形容词形式是determined“有决心的”,故【答案】:是determination和determined。
【小题5】(1分)1. injure vt. 使受伤;损害→①n. 损伤;伤害→②adj. 受伤的→③adj. 有害的injure“使受伤;损害”,动词,其名词形式是injury“损伤;伤害”;形容词形式是injured“受伤的”以及injurious“有害的”,故【答案】:是injury;injured和injurious。
【小题6】(1分)1. grace n. 优雅;恩惠;魅力;慈悲→①adj. 优美的;优雅的→②adj. 和蔼的;慈祥的grace“优雅;恩惠;魅力;慈悲”,名词,其形容词形式是graceful“优美的;优雅的”以及gracious“和蔼的;慈祥的”,故【答案】:是graceful和gracious。
英语高中词性转换练习题及讲解

英语高中词性转换练习题及讲解### English Grammar Exercise: Word TransformationIn this exercise, we will practice converting words from one part of speech to another. This is a fundamental skill in English grammar and will help you to understand how words can change their roles within a sentence. Below are a series of sentences where you are asked to change a word to a different part of speech while maintaining the meaning of the sentence.#### Instructions:1. Read the sentence carefully.2. Identify the word that needs to be changed.3. Change the word to the appropriate part of speech as indicated.4. Ensure that the new sentence is grammatically correct and makes sense.#### Exercise:1. Original: The noisy children disturbed the neighbors.Transformation: The children were noisily playing, which disturbed the neighbors.2. Original: She is very talented in music.Transformation: Her talent in music is very impressive.3. Original: The quick response saved many lives.Transformation: The response was quickly executed, saving many lives.4. Original: The happy family enjoyed their vacation.Transformation: The family's happiness was evident during their vacation.5. Original: The useful information helped us a lot.Transformation: The information was usefully presented, which helped us a lot.6. Original: The beautiful scenery took our breath away.Transformation: The scenery was beautifully picturesque.7. Original: He is known for his honest nature.Transformation: His honesty is well-known and respected.8. Original: The successful businesswoman has many achievements.Transformation: The businesswoman's success is evident through her many achievements.9. Original: The amazing performance left everyone speechless. Transformation: The performance was amazingly impressive.10. Original: The patient waited for hours for the appointment.Transformation: The waiting was patiently endured for hours.#### Explanation:- Adjectives to Adverbs: Adjectives describe nouns, while adverbs modify verbs, adjectives, or other adverbs. For example, "noisy" is an adjective, and "noisily" is the adverb form, describing how the children were playing.- Adjectives to Nouns: Sometimes, an adjective can be theroot of a noun. For example, "talented" is an adjective, and "talent" is the noun form, referring to the quality of being talented.- Adjectives to Adverbs (with -ly): When an adjective ends in -le, the adverb form often ends in -ly. For example, "quick" becomes "quickly".- Nouns to Adjectives: Nouns can be turned into adjectives to describe another noun. For example, "happiness" is a noun,and when used to describe the family, it becomes an adjective.- Adjectives to Adverbs (with -ly, different form): Some adjectives have irregular adverb forms. For example, "useful" becomes "usefully".- Nouns to Adjectives: As seen in the "honest" to "honesty" transformation, the noun form can be used as an adjectivewhen describing a characteristic.- Adjectives to Nouns (with -ness): Adding -ness to an adjective can form a noun that describes the state or quality of the adjective. For example, "amazing" becomes "amazingly".- Adjectives to Adverbs (with -ly, irregular form): Some adjectives have irregular adverb forms that do not follow the -le to -ly pattern. For example, "patient" becomes "patiently".This exercise is designed to help you recognize and use different parts of speech flexibly in English. Practice makes perfect, so keep working on these transformations to improve your English grammar skills.。
2023-2024学年上学期高一英语人教版(2019)期中必刷常考题之词性转换

2023-2024学年上学期高一英语人教版(2019)期中必刷常考题之词性转换一.词性转换(共15小题)1.(2022秋•金水区校级期中)He fought the illness with courage and (determine). 2.(2022秋•雁塔区校级期中)There are special (arrange)for people working for that organization .3.(2022秋•雁塔区校级期中)Some hospital patients experience high levels of (anxious). 4.(2022秋•雁塔区校级期中)Out of (curious),I asked him why he had decided to become a monk.5.(2022秋•金水区校级期中)These incidents led scientists to develop some ways to keep the costly robots from being (trap)in the sand.6.(2022秋•金水区校级期中)You rather than your sister (be)to run the shop after your parents retire. 7.(2022秋•金水区校级期中)When they returned to Rockaway the next day,they found their neighborhood in (ruin).8.(2022秋•雁塔区校级期中)The best way to (explore)the area is by boat.9.(2022秋•雁塔区校级期中)Chances are that Adam will make the team with his football skills (improve).10.(2022秋•雁塔区校级期中)With millions of households (struggle)to make ends meet,UK's Prime Minister Liz announced a two﹣year freeze to the energy price cap on Sep.8.11.(2022秋•雁塔区校级期中)This is the best book (read)for the youth.12.(2022秋•雁塔区校级期中)The chance of the adventurer's (survive)is very slim. 13.(2020秋•桥西区校级期中)He sat there,with his attention (concentrate)on the blackboard. 14.(2021秋•长清区校级期中)Hearing the scene is very attractive,I can't wait (go)there. 15.(2021秋•长清区校级期中)I am too nervous (answer)the question correctly.2023-2024学年上学期高一英语人教版(2019)期中必刷常考题之词性转换参考答案与试题解析一.词性转换(共15小题)1.(2022秋•金水区校级期中)He fought the illness with courage and determination(determine).【考点】名词词义辨析.【答案】determination【分析】他勇敢顽强地与疾病作斗争。
高中英语词性转换练习

高中英语词性转换练习名词转动词1. Success - To achieve success.2. Failure - To fail in an attempt.3. Discovery - To uncover something previously unknown.4. Introduction - To present something for the first time.5. Development - To grow or cause to grow.动词转名词1. Run - The act of moving quickly on foot.2. Swim - The action of moving through water.3. Eat - The consumption of food.4. Sleep - The state of being asleep.5. Speak - The act of uttering words.形容词转副词1. Quick - In a fast manner.2. Slow - At a slow pace.3. Happy - In a cheerful way.4. Sad - In a sorrowful manner.5. Careful - With attention to detail.副词转形容词1. Loudly - Producing a lot of noise.2. Quietly - With little or no sound.3. Quickly - In a fast manner.4. Slowly - At a slow pace.5. Carefully - With attention to detail.形容词转名词1. Happy - A state of happiness.2. Sad - A state of sorrow.3. Quick - A fast pace or speed.4. Slow - A slow pace or speed.5. Careful - A person who is attentive to detail. 名词转形容词1. Sun - The state of being exposed to sunlight.2. Moon - Relating to the moon.3. Wind - Characterized by wind.4. Rain - Characterized by rain.5. Snow - Covered with or consisting of snow.动词转副词1. Run - In a manner of running.2. Swim - In a manner of swimming.3. Eat - In a manner of eating.4. Sleep - In a manner of sleeping.5. Speak - In a manner of speaking.形容词转动词1. Laugh - To express amusement vocally.2. Cry - To shed tears because of sorrow or pain.3. Shine - To emit light.4. Glow - To emit a steady, soft light.5. Bloom - To produce flowers.。
高中英语词性转换单选题60题答案解析版

高中英语词性转换单选题60题答案解析版1.She often takes a walk after dinner to enjoy the beauty of nature and get some fresh air. In this sentence, “beauty” can be replaced by the following words except_____.A.beautifulB.beautifulnessC.beautificationD.beautify答案:D。
“beauty”是名词,“beautiful”是形容词,“beautifulness”和“beautification”都是名词,“beautify”是动词。
题干中需要名词,D 选项是动词不符合要求。
2.The success of the project depends on the cooperation of all team members. “success” can be changed into_____.A.succeedB.successfulC.successfullyD.successfulness答案:A。
“success”是名词,“succeed”是动词,“successful”是形容词,“successfully”是副词。
题干中需要动词,A 选项符合要求。
3.His kindness to others makes him popular among his classmates. “kindness” can be turned into_____.A.kindB.kindlyC.kindnessfulD.kindify答案:A。
“kindness”是名词,“kind”是形容词,“kindly”是副词,“kindnessful”不是正确的单词,“kindify”不是正确的单词。
题干中需要形容词,A 选项符合要求。
高一英语词类转换练习题及答案

高一英语词类转换练习题及答案1. Exercise:Read the following sentences and identify the underlined word's part of speech. Write the correct answer in the space provided.1. My sister enjoys playing the piano. (noun/verb)2. I have two cats as pets. (noun/verb)3. She quickly ran to catch the bus. (adjective/adverb)4. The book on the shelf is mine. (noun/adjective)5. They have been friends for many years. (noun/verb)6. The weather is too cold today. (adverb/adjective)7. We went swimming in the lake. (verb/noun)8. The beautiful flowers bloomed in the garden. (adjective/verb)9. He carefully listened to the instructions. (adjective/adverb)10. The bird flew gracefully across the sky. (noun/adjective)2. Answers:1. My sister enjoys playing the piano. (noun/verb) - verb2. I have two cats as pets. (noun/verb) - noun3. She quickly ran to catch the bus. (adjective/adverb) - adverb4. The book on the shelf is mine. (noun/adjective) - adjective5. They have been friends for many years. (noun/verb) - noun6. The weather is too cold today. (adverb/adjective) - adjective7. We went swimming in the lake. (verb/noun) - verb8. The beautiful flowers bloomed in the garden. (adjective/verb) - verb9. He carefully listened to the instructions. (adjective/adverb) - adverb10. The bird flew gracefully across the sky. (noun/adjective) - adjectiveIn this exercise, we practiced identifying the part of speech of different words in a sentence. Understanding the different parts of speech is essential for building a strong command of the English language. If you correctly identified all the answers, congratulations! If not, don't worry, practice makes perfect. Keep practicing and reviewing the different parts of speech to improve your skills.Remember, nouns are words that identify people, places, things, or ideas. Verbs express actions, occurrences, or states of being. Adjectives describe or modify nouns. Adverbs describe or modify verbs, adjectives, or other adverbs.Keep up the good work, and continue expanding your knowledge of English grammar!。
高一词性转换基本练习

一. The students have made good p_r_e_para_ti_on__for the
coming examination.[prepare]
二. The child studies hard in order to live up to his
parents’_e_xpecta_ti_o_n.[expect]
surfing
1. The boy is addicted to ____the Internet playing
2.
games.[surf] I’m really very
fond
of
_c_yc_l_in_g
[cycle]
in
summer.
3. The pipes for _c_a_r_ry_in_g_ water under the street burst.
earthquake. [complete] 3. He chose Germany, bupt_er_s_o_n,alIl’yd prefer to go to
Spain. [person] 4. The T三0一 train runfsrequently [frequent] from
Wuhan to Guangzhou. Adj-adv. -ly
musician [music] tomorrow.
4. A drunk motorist [motor] ran into a pedestrian
at the traffic light.
人
1. They _f_in_a_ll_y [final] accepted our explanations. 2. The whole city was _c_o_m_p_l_et_e_ly_destroyed in the
- 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
高一英语练习题词性转换11. My little brother’s ambition is to be an ____________like Jackie Chan. ( act )2. What’s the weather like today? It’s ______ ( cloud )3. Children usually begin school at the ________ of six. ( aged )4. Children __________ seven must go to school. ( age )5. Mary has made several films. She is a wonderful __________ . ( act )6. The girl over there is the most __________ member in our school singing group. ( act )7. Joan plays the guitar, and in ___________, she writes her own songs. ( add )*8. At the end of his speech, Tim _________ a few points to show his agreement. ( addition )*9. She __________ her part well, because she is one of the most famous ___________ in the world.( act )*10.Yoga is one of his favourite ___________. ( act )词性转换21. We didn’t know whether he was dead or _________.(live)2. We all know that water is very important to all ________ things. (live)3. Spiders can __________ for several days without food. (alive)4.Disneyland is a famous ___________ park. (amuse)5. Jack told his students an _________ story. (amuse)6. I can never find my pens at home because they _________ after I bought them. (disappear)7. I must go now because I have an important meeting to _________. (attentive)8. My Mum bought a new washing machine, it’s __________ (automatically)*9. Grandpa Li _________ alone because he has no children. (alive)*10. When Tom was parking his car in the street, a policeman _________ in front of him. (disappear)词性转换31. The students of Class One will _______ a lecture on how to fight pollution. (attentively)2. The lift can open and close the door __________ (automatic)3. Kate sings so __________ that many people like her very much. (beautiful)4.The light music sounded very __________. I enjoy every minute of it. (beautifully)5. She knows the subject from __________ to end. (begin)6.At the __________ of this century, the APEC conferences were held successfully in shanghai. (begin)7. What a ______ day we’re having these days! ( brightly )8. Of all the subjects ________ is my favourite subject. ( chemical )*9. No one knows why dinosaurs ____________ suddenly. (appear)*10. After running 500 meters, I ________ to feel tired. (beginning)词性转换41. Another across sea bridge will be _____ in China soon. ( build )2. You’d be more _____ next time, or you’ll make the same mistake again! ( care )3. Among all the students in our class Li Ming writes the most ______. ( careful )4. Could you tell me whether it is a ________ change or a physical change? ( chemistry )5. In summer the sun is always shining ______. ( bright )6. How do you know that Joyce was a popular ______ as a chief editor? ( choose )7. They want to make it _____ to the public that air pollution is harmful to us. ( clearly )8. The students are not allowed to touch the ________ without permission. ( chemistry )*9.Do you think it is good to have so many tall _______ in our city? ( build )*10. You look _______ than before. (healthy)词性转换51. Both of the trousers are well designed, I don’t know which pair to _____ . ( choice )2. Please say it loudly so that everybody can hear you ______. ( clear )3. The little boy asked if the rain came from the _____. ( cloudy )4. When I was of your _________, I was very strong. ( aged )5. Nowadays children prefer hamburgers to any other food,but they are not good for children’s _______. (healthy)6. It rained ____ last night and the river rose two feet. (heavy)7. The _____ in my car doesn’t work properly. (heat)8. It’s very important for us to have plenty of ______ food. (health)*9. Traffic today is much ______ than that of tomorrow. (heavy)*10. The _________ over there live in the same housing estate. (fish)词性转换61.Two women doctors will give us a lecture on ____ diet tomorrow. (health)2. It is difficult to _____ the office because it is too big. (heater)3. The box is too ____ for me to carry. (heavily)4. The building is one of the_______ buildings in the city. (high)5. Have the government officials measured the _____ of the bridge? (high)6. She told us the young man was of average ____ and wore a pair of glasses. (high)7. He does so well in his study and I think he must be ____ to others. (help)8. The Qomolongma is the_______ peak in the world. (high)*9. An English-Chinese dictionary _____ us a lot. (helpful) *10. Do you know who the telephone was________ by? (invention)词性转换71. Li Ming jumps ____ than any other student in his students. (high)2. She is always very ______ to his class teacher. (help)3. China is a great country and it has a long _______. (historical)4. Today many Chinese children are having a happy lifewith their parents while thousands of ________ children in Iraq are having a hard life. (home)5. Sue is a good girl and her ________ makes her parents and teachers pleased. (honest)6. There are many places of _______ interests in Beijing. (history)7. Our English teacher _______ us a lot in learning English. (helpful)8. One his way _______ , he saw a robber running out of a bank. (homeless)*9. I wouldn’t like to do business with such a ________ man. (honesty)*10. It is _________ for him to improve his English without enough practice. (possibly)词性转换81. After the heavy storm , thousands of people became _____ .(home)2. He looks _________ enough, but can we trust him? (honesty)3. I read the book _______ looking for some information about UFOs. (hungry)4. He is too ________ to walk any more. (hunger)5. Nowadays more and more people realize the _______ of keeping balance of nature. (important)6. It is ______ for us to learn English well in order to meet the need of World Expo (importance)7. I’ll come as soon as _______. (possibly)8. He’ll _______ get the first prize because he is so good at English. (possible)*9. He is _______ to Mary’s birthday. (invitation)*10. The children _______ themselves playing in the water yesterday afternoon. (joy)词性转换91. He will ________ be a professional football player in the future. (possible)2. She shows great ______ in singing. (interesting)3. The film was so _______ that all of us laughed. (interest)4. They were ______ in my culture and they asked me a lot of questions. (interest)5. Otis was the _______ of the first lift. (invent)6. His _____ saved people from having to walk up and down stairs.(invent)7. Simon has just received an _____ to Betty’s birthday party tomorrow. (invite)*8. Making paper is one of the greatest _____ of ancient Chinese people. (invent)*9. The party was very exciting and we _______ every minute of it. (joy)*10. We went to a beautiful lake and spent an _______________ day. (forget)词性转换101. He has got an ________ from his uncle in the United State. (invite)2. Are you going to ______ Julia to your birthday party? (invitation)3. To his great _______ , he will go travelling to Hong Kong with his parents this summer holiday. (enjoy)4. My father wants to buy a car of this model, but my mother thinks it’s too __________ (expense)5. I don’t think I like ________________ food. It’s not fresh. (freeze)6. Can you do me a ________________ to lift the heavy box? (favourite)7. What _____________ weather we are having now! (freeze)8. There are different kinds of ___________ in the sea. (fish)*9. Tim thinks traveling by train is far ___________ than by air. (joy)*10. The fish are ____________ by the great noise. (fright)词性转换111.The woman was ___________ when she saw the big snake. (frighten)2. The man talked all the time _________________. (excited)3. It was so _______ to see my favorite singers at the concert yesterday. (excited)4. I love my teacher because she is ________________ to us. (friend)5. They tried to run away to ______________ ( free)6. The children are skating excitedly on the __________________ river. (freeze)7. It was said that he was the last bird ________________ in that village. (fish)8. Last week three _________________ saw a UFO flying over the sky. (fish)*9. He tried to make more money to work out a solution to travelling _________ (expensive)*10. Hearing the good news, the children rushed out _______ than usual. (excite) 词性转换121. He is the person who likes to make a lot of ________________ . (friend)2. We are so lucky that we are _________________. (freedom)3. What a ________________ (fun) story it is!4. What’s the _________________ place you’ve ever been to? (far)5. Let’s study the _________________ lesson now. (four)6. The __________________ word in this dictionary is “zoo”. (finally)7. I think _________________ is the most important thing in the world. (free)*8. Jack is very good at fishing. He must be one of the greatest ____________ in the world. (fish) *9. _________, he fell off his bicycle and broke his arm yesterday. (luck)*10. It was an _____________ experience for me to be invited to attend the meeting. (forget)词性转换131. He gave me a ___________________ smile. (friend)2. The air in the city is polluted by many _____________________ (factory)3. Hey, boy, don’t be _______________ any more. (fool)4. Ben throws the discus far, but John throws much __________. (far)5. I need ____________ information to work out the problem. (far)6. Maybe this is a __________ answer. (fool)7. My brother is 8 years old. His _____________ food is chocolate cake. (favour)8. My mother is very _________________ though she is only forty. (forget)*9. It’s _________ for him to be late for school because he is a good student. (usually)*10. Lesson One is _________ than Lesson Two. (difficulty)词性转换141. The students enjoyed their __________ during the summer holidays. (free)2. The children are skating happily on the ___________________ river. (freeze)3. People keep dogs and cats because they are their ___________________ (friend)4. The sky thundered with a __________ sound of lightning. (frighten)5. They had an ________________ morning together. (enjoy)6. She was so ________________ that she couldn’t say。