2019_2020学年新教材高中英语Unit1Teenagelife单元重点知识回顾课件新人教版必修第一册
单元重点知识回顾
Ⅰ.重点词汇 1．debate n．& vt.& vi. 辩论；争论 debate (with sb.) about/on/over sth. (与某人)辩论/讨论某事 under debate 在讨论中；在辩论中 2．prefer v. 较喜欢；选择某事物(而不选择其他事物) (1)prefer to_do/doing ... 更喜欢做…… prefer sb. to_do ... 更喜欢让某人做…… prefer sth./doing ... to sth./doing ... 与……相比更喜欢…… (2)preference n. 偏爱；优先权；偏爱的事物 have a preference for ... 偏爱……
Much of hotpot's popularity comes from the participatory (众人参与的) nature of the cooking process and time available for socializing. Friends and family sit around a pot of boiling broth, dropping meat, vegetables and other ingredients in __7__ (cook) and absorb the flavors. While the food cooks, diners chat and social行家 adj. 熟练的；内行的；专家的 an expert on/in/at ... 某方面的专家 be expert in/at 在某方面擅长 14．behaviour n. 行为；举止 (1)behave vt.& vi. 举动；(举止或行为)表现 behave well/badly to/towards ... 对……态度好/差 behave oneself 守规矩；表现得体 (2)well-behaved adj. 表现好的 badly-behaved adj. 表现差的
5．challenge n. 挑战；艰巨任务 vt. 怀疑；向……挑战 challenge sb. to_do sth. 激励某人做某事 challenge sb. to sth. 向某人挑战某事 face a challenge 面临挑战 meet/take_up a challenge 迎接挑战 challenging adj. 挑战性的
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8．He is now fighting his ________ (addict) to alcohol. 答案：addiction
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9．She gave him a ________ (challenge) look. “Are you sure？” she demanded.
答案：challenging
year.(教材P14)
我会努力提高自己的足球水平，这样明年我就可以加入球队了。
5．But spending too much time online is unhealthy and makes it very difficult to focus on other things in life. (教材P18)
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3．There is no doubt about her ________ (suitable) for the job. 答案：suitability
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4．We chose the hotel on their ________ (recommend)． 答案：recommendation
课外拓展阅读——中国优秀传统文化专题练 阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确 形式。 China is home to diverse regional cuisines and a growing foreign－food scene, __1__ nothing tops the hotpot ritual (用餐习惯) of placing fresh ingredients into a boiling broth (肉汤), according to a new survey.
15．attract vt. 吸引；引起……的注意(或兴趣) (1)attract one's attention/interest 吸引某人的注意/兴趣 attract sb. to sth. 吸引某人关注某事 be attracted to sb. 喜爱某人，为某人所吸引 (2)attraction n. 吸引力；诱惑力；有吸引力的地方；有吸引力的事物 (3)attractive adj. 有吸引力的；引人入胜的
9．recommend vt. 推荐；建议；介绍；劝告 (1)recommend doing sth. 建议做某事 recommend sb. to_do sth. 建议某人做某事 recommend sth. to sb. 把某物推荐给某人 recommend sb. as ... 推荐某人为…… recommend＋that ... 建议……[从句中的谓语动词用(should＋)动词原 形] (2)recommendation n. 推荐；介绍信
但是花费太多时间上网有害健康，并且很难集中精力于生活中的其他事 情。
Ⅲ.单句语法填空 1．It's a matter of personal ________ (prefer)． 答案：preference
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2．The motion ________ debate was put to a vote. 答案：under
7．fluent adj. (尤指外语)流利的；熟练的 (1)be fluent in ... 讲一口流利的…… (2)fluently adv. 流利地；熟练地 8．graduate vi.& vt. 毕业；获得学位 n. 毕业生 (1)graduate from 从……毕业 graduate in 毕业于(……专业) (2)graduation n. 毕业 after graduation from ... 从……毕业之后
6．confuse vt. 使糊涂；使迷惑；混淆 (1)confuse A with/and B 将A和B混淆 (2)confusing adj. 难以理解的；不清楚的 confused adj. 糊涂的；迷惑的 be/get confused 被弄糊涂 (3)confusion n. 混乱；困惑 in confusion 困窘；尴尬
12．responsible adj. 有责任的，应负责任的 (1)be responsible for 应对……负责，对……有责任 be responsible to sb. 对某人负责 (2)responsibility n. 责任，责任心 take responsibility for 承担对……的责任，为……负责 a_sense_of responsibility 责任感 have responsibility for 对……有责任，对……负责
Hotpot was __5__ (original) eaten to avoid the winter cold, but has become a favorite year－round food in China. Famous hotpot chains often have long lines of people waiting hours to get __6__ table, even on hot summer days.
The survey, __2__ (publish) by consulting firm OC&C this week, found that hotpot is Chinese favorite meal. A total of 2,600 people the firm surveyed in 21 Chinese __3__ (city) in February also placed domestic hotpot chain Haidilao __4__ the top of the list of the country's 10 favorite restaurants.
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5．It's cheaper if you book your ticket ________ advance. 答案：in
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6．Mike is ________ (response) for designing the entire project. 答案：responsible
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7．City life holds little ________ (attract) for me. 答案：attraction
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10．The children gave a ________ (confuse) account of what had happened. 答案：confused
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Ⅳ.开放型任务 本单元涉及高中生活，参加学校俱乐部是高中生活的一部分，如果让你 和你的同学创建一俱乐部，你会选择什么名称，有什么口号、目的，安排什 么活动，参加成员需要具备什么条件以及何时何地开展活动，请你就以上内 容作出计划。
Ⅱ.教材原句 1．I think you should choose what you like .(教材P13) 我认为你应该选择你喜欢的。 2．I know that Chinese is a very difficult language ,but I hope to be fluent when I graduate.(教材P14) 我知道中文是很难学习的一门语言，但我希望在毕业时可以流利地说中 文。
3．My adviser
recommended that
Unit1TeenageLife重点短语和句子清单-高一英语人教版
必修1 Unit1 重点短语和句子1.enjoy doing sth 享受做...2.prefer doing sth 喜欢做...（prefer prefe rr ed prefe rr ed）3.clean up parks 清扫公园4.be suitable for sb 适合某人5.join a club 成为俱乐部的一员6.sign up for 报名参加...7.advanced literature 高等文学8.extracurricular activities 课外活动9.on one’s own 独立地，自主地10.make the team 组队，加入球队11.hand out sth to sb 把某物递给某人12.get used to sth 适应/习惯于...13.be responsible for sth 对...负责14.be a bit worried about sth有点担心...15.keep up with 赶上16.be well prepared for... 为...充分准备17.a workable schedule一份切实可行的工作计划18.make a good decision做一个好的决定19.try out for sth 参加...的选拔20.practise doing sth 练习做...21.adventure camp 冒险营22.survival skills 生存技能23.make a fire 生火24.learn about wildlife 了解野生动物25.improve my spoken English提高我的英语口语26.a letter of advice 一封建议信27.be attracted to sth 喜爱，被吸引到...28.focus/concentrate on 集中精力于29.bee addicted to sth 对...上瘾30.encourage sb to do sth 鼓励某人做...31.Why not do...? 为什么不...？32.feel lonely 感到孤单33.fall behind schedule 进度落后34.drop out of school 辍学35.be grateful for sth 对...感谢36.make the most of 充分利用...1.Good habits formed at youth make all the difference.青少年时养成的好习惯能让人收益终身。
新教材Unit-1-Teenage-Life重点单词讲解
6. move v. 移动；感动 movement n. 动作；移动，运动
moving adj__________=
moved adj__________= movable adj. 可移动的
（1） The supermarket was so crowded that we even could not _______.
around the country.
③ He wants to work immediately after_______g_r.aduation
14. recommend vt.建议，推荐， 介绍
(1)recommend vt. recommendation n.
(2) “推荐” recommend +sb +sth （双宾） 或者recommend sth to sb.
extra-curricular adj. 课外的；课程以外的
20. obviously 显然；明显地 （1）obvious (easy to see= evident ；clear； apparent ) obviously （2） It is obvious that he is popular with students. Obviously, he didn’t trust us.
quit a job 辞职
22. responsible (1)responsible adj. 负责的；负责任的 a ~doctor
I recommend the book to anyone with an interest in art.
（3）① “建议”用法同advise recommend doing sth. recommend sb. to do… I recommend reviewing it once again. The teacher recommended me to review it again. ②“建议+that 从句（虚拟语气should +V原形）
人教版必修第一册Unit1Teenagelife单元知识点总结课件
（3） Whether to wear formal clothes or not is under debate.
完成句子
（4） We had a heated debate （一场猛烈的讨论）on the matter.
（5） It is a fact beyond debate pressure of graduates is heavy.
常用于结构：argue sb. into/out of doing sth. 说服某人做 / 不做某事。
单句语法填空
（1）We are having a heated debate on on children.
the effect of computers
（2） We debated with them on the question till late into the night.
单句语法填空
（1）As a matter of fact，I prefer certainty to
adventure.
（2）I prefer to go （go） out and be out.
（3）Most people prefer riding （ride）to work to ____________ （drive）with the free-bicydrcilveingservice offered.
2019_2020学年新教材高中英语UNIT1TeenagelifeSectionⅥAssessingYourProgress课件新人教版必修第一册
芭蕾舞
4． volunteer n.
志愿者
5．debate n.
辩论；争论
vt. & vi. 6． prefer vt.
辩论；争论 较喜欢
7． content n.
内容；(pl.)目录；(书、讲话、节目
等的)主题
8． movement n. 9．greenhouse n. 10． suitable adj. 11． actually adv. 12． challenge n.
5．upset adj.
不高兴的，失望的
vt.
使不高兴，使失望
6．defend vt.
辩解，辩白；防御，保护
7．deserve vt.
值得；应得；应受
8．hard adj.
苛刻的，严厉的
9．rude adj.
粗鲁的；无礼的
10．hard-working adj. 11．handle vt. 12．error n. 13．guidance n. 14．insist vi. 15．chat vi. & n. 16．argument n. 17．freedom n. 18．harm vt. & n. 19．foolish adj. 20．patience n.
vt. 27．wisdom n. 28．independent adj.
自私的 禁止 误解 正常(的)，一般(的) 身体的；物质的 往往；趋向 照看 智慧 独立的
(二)短语 1．be hard on 2．stay up 3．insist on
对……苛刻，对……严厉 不睡觉，熬夜 坚持，坚持认为
vt. 13． title n. 14． topic n. 15． freshman n. 16． confusing adj.
2019-2020学年高中英语新教材必修第一册课件：Unit 1 Teenage life Section Ⅲ
2．His company supplies kitchen_equipment. ____________________________________________ 答案：厨房设备
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3．Holiday flights are getting less_and_less_expensive. _____________________________________________ 答案：越来越便宜
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expert n. 专家；行家 adj. 熟练的；内 2
行的；专家的(教材P17)
归纳 拓展
an expert on/in/at ... 某方面的专家 be expert in/at 在某方面擅长
①I suggest you leave it to an _____e_xp_e_r_t ______. 我建议你把它留给专家来解决。 ②There is a great deal to learn from Hal's _____e_x_p_er_t______ approach. 从哈尔熟练的方法中可以学到很多。 ③He is an _________e_x_p_e_rt_o_n________________ modern literature. 他是现代文学研究专家。 ④She's _______ex_p_e_r_t _at_m__a_k_in_g_____ cheap but stylish clothes. 她擅长做便宜但雅致的服装。
句型转换 ①It was so cold a day that there was nobody in the street. (用such ... that ... 改写) →It was ________________ there was nobody in the street. ②It will be so low in price that no man will be unable to own one. (用so ... that ... 改为倒装句) →_____________________________________________
2019新人教版高中英语必修一unit1词汇表重点知识点拓展总结(复习必背)
必修一Unit1Teenage Life词汇知识点归纳总结①黄色部分为本单元重点词；
②红色部分为短语、同根词，注意汉译英；
③蓝色部分为词块，注意英译汉
向某人推荐
从地震中幸存下来
vt&vi(使)聚焦;(使)集中;调节(...的)焦距
focus on/upon...集中/聚焦于；特别关注
focus one’s mind/attention on...集中注意力于……
【拓展】表示“集中注意力/精力于…”的短语还有
concentrate one’s attention on...
fix one’s attention on...
put one’s heart into...
【同根词】focus(s)ed adj注意力集中的
40.addict v使入迷，使上瘾
addict oneself to(doing)sth沉溺于(做)...
n[C]吸毒上瘾的人;对.......着迷的人
【同根词】●addicted adj上瘾的;入迷的
be/get/become addicted to(doing)sth沉溺于(做)...；专心(做)...
●addiction n.上瘾；沉溺
have an addiction to doing sth做某事上瘾
41.adult n[C]成年人。
2019-2020版高中英语新教材人教必修第一册Unit 1 TEENAGE LIFE：Section Ⅰ Listening and Speaking
主题语境——人与自我之校园生活【语境概说】本单元的主题语境为人与自我中的生活与学习，该主题语境主要包括学校生活、健康的生活方式、积极的生活态度、乐于学习、善于学习等等。
本单元主要涉及校园生活、学业上的挑战，生活中遇到的问题及解决方法。
该主题与学生生活密切相关，在此主题意义引领下，有助于了解校园生活的各个方面，促进学生语言能力、文化意识、思维品质和学习能力的融合发展。
No pains，no gains.没有付出就没有收获。
No cross，no crown.不经历风雨，怎么见彩虹。
It is never too late to learn.活到老，学到老。
If you don’t learn to think when you are young，you may never learn.如果你年轻时没有学会思考，那就永远学不会思考。
A young idler，an old beggar.少壮不努力，老大徒伤悲。
Section ⅠListening and Speaking1.Translate the following words and phrases.①teenage adj.十几岁的；青少年的②teenager n.青少年③ballet n. 芭蕾舞④volunteer n. 志愿者⑤debate n.辩论；争论v t.&v i.辩论；争论⑥prefer v t. 较喜欢⑦content n. 内容；目录；主题⑧movement n. 动作；运动；活动⑨greenhouse n. 温室；暖房⑩suitable adj. 合适的；适用的⑪proverb n. 谚语⑫actually ad v. 事实上；的确⑬predict v t. 预测⑭decide v t. 决定⑮prefer...to... 喜欢……多于……⑯clean up 打扫干净⑰suitable for 对……适合的⑱be interested in 对……感兴趣⑲make friends 交朋友⑳prepare for 为……做准备2.Brainstorming：What school clubs can you think of?Nature Club，V olunteer Club，Debate Club，Cartoon Club，Singing Club，Science Club，Handwriting Club，etc.3.Look at the pictures on Page 12 and tell your classmates what they are/she(he) is doing?They are discussing different questions./She is dancing ballet./He is helping others./They are planting trees.4.Finish Ex.1 on Page 12.5.Try to translate the sentence in various ways.我喜欢观看足球比赛。
2019_2020学年新教材高中英语UNIT1TeenagelifeSectionⅠListeningandSpeaking教案新人教版必修第一册
UNIT 1 Teenage lifeSection ⅠListening and Speaking听音填空/You’re My Best Friend// 你是我最好的朋友/ 《You’re My Best Friend》是英国皇后乐队(Queen)演唱的一首非常轻快的英文歌。
整体感觉就像是海边的椰子树下，一帮好友躺在沙滩上，弹着琴喝着果汁儿，不用刻意地去说“You’re my best friend．”。
大家心照不宣。
Ooo，you make me livewhatever this world can 1．give to meIt’s you，you’re all I seeOoo，you make me live now honeyOoo，you make me liveOoo，you’re the best friendthat I ever hadI’ve been with you 2．such a long timeYou’re my sunshineAnd I want you to knowThat my feelings are trueI really love youOoo，you’re my best friendOoo，you make me liveI’ve been wandering roundBut I still 3．come back to youIn rain or shineYou’ve stood by me girlI’m happy，happy at homeYou’re my best friendOoo，you make me liveWhenever this world is cruel to me I got you to help me forgiveOoo，you make me live now honey Ooo，you make me liveOoo，you’re the first oneWhen things 4．turn out badYou know I’ll never be lonely You’re my only one哦，你让我生活得有意义无论这个世界可以给我什么是你，你就是我见到的全部哦，你现在让我生活得有意义，亲爱的哦，你让我生活得有意义你是我最好的朋友没有之一我和你在一起已经这么长时间了你就是我的阳光而且我要你知道我的感情是真挚的我真的爱你你是我最好的朋友哦，你让我生活得有意义我一直在徘徊但我还是会回到你身边在雨里，在阳光下你一直伴我同行即使在家我也感觉到快乐你是我最好的朋友哦，你让我生活得有意义无论这个世界对我多么残忍我有你帮我饶恕哦，你现在让我生活得有意义，亲爱的哦，你让我生活得有意义你是我第一个要找的人当周围的环境都变得乱糟糟的时候你也知道，我永不会孤独你就是我的唯一[词海拾贝]1．wander round 闲游；徘徊2．cruel['kruːəl]adj．残忍的；残暴的3．forgive[fə'ɡIv]vt．原谅1．What clubs have you ever joined?Ballet_Club;_Nature_Club;_Volunteer_Club;_Debate_Club．2．We have different hobbies in our daily life．What do you think students do in these clubs? Match the pictures with the names of the clubs．Ballet club: ②Nature Club: ④Volunteer Club: ③Debate Club: ①①②I enjoy discussingI love dancing!different questions．③④I prefer helping others．I’m interested in plants and animals．ⅠListen to the first two conversations and choose the correct answer．(教材P12)1．What are they learning about in Conversation 1?A．Hearing．B．Sounds．C．Dogs．2．The students are discussing ________ in Conversation 2．A．schoolwork B．relationships C．dating3．Circle the two clubs where these two conversations happened．A．Science Club．B．Ballet Club．C．Nature Club．D．Debate Club．答案：1.A 2.C 3.AD听力材料：COVERSATION 1T＝Teacher S＝StudentT: Shh! Listen carefully![3second beep at about 40 kHz, i．e．ultrasonic, dogwhistle range．]T: Did you hear that? No? How about this?[3second beep at 17．4 kHz]T: If you couldn’t hear the first one, it means you’re not a dog！[laugh]．Dogs can hear very high frequency sounds, but people can’t．And if you could hear the second one, you’re younger than 25．S: Wow! Why is that?T: Our ears change when we get older．Children and young people can hear the second one, but most people older than 25 can’t．COVERSATION 2T＝Teacher A＝Team A B＝Team BT: Today’s topic is “Should teenage rs date？” Team A, please begin．A: We say no, they shouldn’t．One reason is that teenagers are too young．They should think about schoolwork and spend more time studying．B: We don’t agree with Team A．Our answer is “Yes”．Teenagers can date if they want．It is quite natural for a teenager at that age to feel he or she likes somebody．Wethink it’s possible for teenagers to date and study at the same time．T: Team A？．．．ⅡListen to Conversation 3．Then help Adam choose a club．(教材P12)1．Tick the activities that happen in each club．Ballet Club Nature Club①learn new movements ①listen to lectures②watch dance programmes ②grow plants③make ballet clothes ③work in a greenhouseCartoon Club Volunteer Club①watch cartoons ①help old people②write stories ②clean up parks③draw cartoons ③give directions2．Adam says that he likes ________ but is not so interested in ________．A．stories, cartoonsB．animals, plantsC．making friends, cleaning up3．Which club do you think is suitable for Adam? Why?I think Adam should join the ________ Club because he says that he ____________．答案：1. Ballet Club：①Nature Club：②③Cartoon Club：②③Volunteer Club：②③2．B3．Volunteer; likes to do something outdoors听力材料：COVERSATION 3J＝Julie A＝AdamJ: Hi, Adam! Are you going to join a club?A: Hi, Julie! I’d like to, but I’m not sure which one．J: I think I will join the Ballet Club．It’s always been my dream to be a dancer, and ballet has such beautiful movements．A: Oh, wow, dancing’s not for me—I’ve got two left feet．Mr Brown told me about the Nature Club．They watch biology lectures and grow plants in a greenhouse．I like animals, but I’m not so interested in plants．J: Did you hear about the Cartoon Club?A: Yes, I love cartoons! But what do they do in the club? Watch cartoons?J: No, they write stories and draw cartoons．A: Oh, no．I’m not good at drawing．Besides, I’d like to do something outdoors．J: Max is in the Volunteer Club．He says that they mostly help clean up parks and give directions to visitors．Why not talk to him？．．．Listening Tips1．预测内容Before you listen, you can read the questions and the choices．It will help you to predict what you will hear．For example, from Question 1’s choices, we can find A and B are similar, which is important．During your listening, when you hear “Did you hear that？” “If you couldn’t hear the first one．．．if you could hear the second one” “Our ears change when．．．”，you may know the answer is A．2．巧听爆破音(1)爆破音＋爆破音：6个爆破音【t，d，k，g，p，b】中的任意2个相临时，前一个爆破音会失去爆破，即由相关的发音器官做好这个发音的姿势，稍做停顿后即发后面的爆破音。
必修一unit1Teenage Life重点短语和词形梳理
新人教高一英语Unit1Teenage Life重点短语和词形Listening and Speaking1. at youth 在青少年时期2. form a good habit 养成好习惯3. make all the difference 大不相同；关系重大4. a school club 学校社团5. watch dance programmes观看舞蹈节目6. clean up 清理；打扫干净7. give directions 指路/指方向8. be suitable for 适合于…的9. join a club 加入一个俱乐部/社团10. like…better 更喜欢11. to be with 与..在一起Reading and Thinking12. take a quick look at 快速浏览13. key words 关键词14. main ideas 中心思想15. topic sentence 主题句16. take a course 选课；上课17. sign up for 报名参加；注册，选课18. advanced literature 高级文学19. be good at 擅长做…20. extra-curricular activities 课外活动21. on one's own 靠自己22. make the team 入选球队23. a soup kitchen 施粥场24. hand out…to…分发；施舍…给25. in the community 在社区26. get used to doing sth. 习惯做某事27. be responsible for 对……负责28. keep up with 赶得上；和…保持联系29. be well prepared for 为…作好充分的准备30. the same…as…与…一致31. differences between A and B A和B的不同之处32. advanced maths 高等数学33. make a workable schedule制定一个可行的计划34. choose suitable courses 选择合适的课程35. make a decision 作决定36. the main purpose of …的主要目的37. advise sb.to do sth. 建议某人做某事38. start a writing club 成立写作俱乐部39. face a difficulty 面对困难Discovering Useful Structures & Listening and Talking40. try out for 参加…选拔41. practice doing sth. 练习做某事42. survival skills 生存技能43. make a fire 生火44. in the wild 在野外45. learn sth. from sb.…向…学习46. spoken English 英语口语47. give a speech 做演讲48. get started 开始；被启动Reading for Writing49. ask for some advice 征求意见50. be worried about 为…而担心，忧虑51. recommend that you should do 推荐某人做某事52. teenagers of your generation你们这一代青少年53. be attracted to 喜爱，被吸引到54. the online world 网络世界55. focus on 集中于，特别关注56. become addicted to 对…上瘾；沉迷于…57. concentrate on 集中精力于；全神贯注于58. encourage sb. to do sth. 鼓励某人做某事59. why not do sth. 为什么不做某事?60. all the best 一切顺利，万事如意Assessing Your Progress61. feel lonely 感到孤独，感到寂寞62. fall behind 落在后面63. work out 解决；算出；实现；制定出64. have a chance to do sth. 有机会做某事;65. get a good education 接受良好教育66. drop out of school 辍学67. be grateful for 对…心存感激68. make the most of 充分利用69. solve the problems 解决问/难题70. set up 设立建立创立树立71. graduate from 从…毕业72. throw away 扔掉，丢弃73. be similar to 与…相似74. be different from 与…不同，不同于75. agree with 同意，和…意见一致76. disagree with 不同意；不一致；不适合77. aim to do sth 打算做某事78. give sb. some advice on how to do sth. 就如何做某事给某人一些建议。
Unit1 Teenage Life重点单词讲解 课件 高一英语人教版必修第一册
24.attract vt 吸引；引起…的注意（兴趣） attractive adj. 有吸引力的； attraction n. 吸引；吸引力
attract one’s attention
=catch one’s eye be attracted to sth 对…….很入迷 25．focus on集中(注意力、精力等)于 “集中注意力于/全神贯注于……”表达法集锦：
concentrate (one's mind/attention) on
be buried/absorbed/lost in
keep one's mind on
focus/fix one's mind/attention on
lose oneself in/bury oneself in
26.addict n.对…入迷的人；吸毒成瘾的人 addicted adj. 有瘾的，上瘾的；入迷的 addictive adj. 使人上瘾的 addiction n. 瘾；沉溺 (sb) be addicted to (doing)sth 沉溺于…专心做… addict oneself to sth. 沉溺于……
There is some ______ (confuse) about what the correct answer should be.
11. fluent adj. (尤指外语）流利的，熟练地 fluently adv (=with fluency) fluency n be fluent in = fluency (in) 在… 方面很熟练、流利
actually= in fact=as a matter of fact=in reality
9.challenge n. 挑战；艰巨任务 vt. 怀疑；向……挑战；激励