UNIT 3 SPORTS AND FITNESS 突破疑难（PPT同步课件）-【学而思】2026-2027学年高一英语必修第一册（人教版）

该高中英语单元复习课件围绕“SPORTS AND FITNESS”主题，系统梳理高频词汇（如honour, strength, compete）、核心语法（附加疑问句、Even if/Even though让步状语从句）及情景应用，通过词汇网络构建（如compete衍生competition, competitor）、语法规则归纳（附加疑问句“前肯后否”等规则）和易混词对比（injury/wound/hurt辨析），帮助学生建立知识内在逻辑。 其亮点在于融合语言能力与思维品质培养，设计“词汇精讲-真题演练-地道表达”分层活动，如honour的用法归纳结合2025北京高考题，易混词辨析通过情景搭配题强化应用，附加疑问句专题含规则梳理与对话补全练习。这种设计既巩固语言知识，又提升学生分析和解决问题能力，助力教师精准实施分层复习教学。

UNIT 3　SPORTS AND FITNESS 第1讲　描述运动的基本概念     　　It is an honour for me to be invited here today.今天被邀请到这儿来是我的荣幸。    　　The Dragon Boat Festival is celebrated in honour of the famous ancient poet—Qu Yuan.庆祝端午 高频词汇精讲 第1讲　描述运动的基本概念 节是为了纪念著名的古代诗人——屈原。   　　I am honoured to give a speech here on behalf of my school.我很荣幸能够代表我的学校在这里 发言。      ①in honour _______ sb.=in sb.'s honour为了向某人表示敬意;为了纪念某人 ②It is an honour (for sb.) __________ sth.(对某人来说)做某事是荣幸的。 ③have the honour of (doing) sth.得到某殊荣;有幸做某事 ④be an honour to...是……的光荣  ⑤be/feel honoured __________ sth.做某事感到荣幸 ⑥honour sb. with sth. for sth.因某事给予某人……奖励(或头衔、称号)   　to do     　to do     　of     第1讲　描述运动的基本概念 　　honour发音以元音音素开头,故加不定冠词时要用an。   honourable adj.可敬的;值得钦佩的;品格高尚的;体面的 第1讲　描述运动的基本概念   ①[2025北京]With my father's support, I learned a valuable lesson: attention cannot be forced; true recogni- tion comes from _______________(honour) acts. ②The university honoured the student _______ a prize ________ his research into medicine. ③[2026江苏徐州联考]It's not only a great responsibility but also a great honour _____________(choose). ④[2022新高考Ⅰ写作]我们很荣幸能邀请您参加我们的节目。(一句多译) →______ ______ ____ ___________ ______ _____ _______ be able to invite you to join us in the program. (honour n.) →______ __________ ___________ _______be able to invite you to join us in the program.(honour v.) 　to     　honoured     　feel/are     　We     　to     　us     　for     　honour     　an     　is     　It     　to be chosen     　for     　with     　honourable     第1讲　描述运动的基本概念   第1讲　描述运动的基本概念     ①injury n.[C,U]伤害;损伤 injury/injuries to...(身体某部位)受伤 do oneself an injury伤害自己 have/suffer/get/receive an injury受伤 ②injured adj.受伤的 the injured伤员,受伤的人(复数概念) 第1讲　描述运动的基本概念   injure 多指在事故中受伤,也可指对名誉、自尊等的伤害 wound 通常指在战斗、攻击中受伤,多指枪伤、刀伤等皮 肉伤;也可指心灵上的创伤 hurt 可指身体受伤或疼痛,也可指精神或情感受到伤害 第1讲　描述运动的基本概念     第1讲　描述运动的基本概念   ①[2026中国人民大学附属中学期中]He got a slight leg ___________(injure) while playing basketball, so he had to skip the PE class for a few days. ②[2026山东济南月考]To avoid alarming the ____________(injure) bird, he picked it up gently. ③The injured in the accident _________(be) rushed to the hospital right away and luckily, no one was killed. 　were     　injured     　injury     第1讲　描述运动的基本概念   第1讲　描述运动的基本概念     　　Chinese culture is the source of strength to meet all kinds of challenges.中国文化是迎接各类挑 战的力量之源。     ①strength __________ sth.做某事的力量 ②with all one's strength用尽全力 　to do     第1讲　描述运动的基本概念 ③build up one's strength强身健体 ④strengths and weaknesses优势和劣势;优缺点   　　strength表示“力量,体力”时为不可数名词;表示“优点,优势”时为可数名词。   ①strengthen v.加强;增强 ②strong adj.强壮的;强大的;坚定的;坚强的 ③常见的加后缀-en变动词的名词还有: fright n.惊吓→frighten v.使惊吓 length n.长度→lengthen v.(使)变长 height n.高度→heighten v.(使)提高 第1讲　描述运动的基本概念 threat n.威胁→threaten v.威胁 第1讲　描述运动的基本概念   ①[2023天津]That said, with a bang of the starting gun, I would dive into the cold water with all my ____ ____________(strong) and swim to the other side of the pool as fast as I could, only to find that the other swimmers slid past me. ②[2026广东广州七中月考]Since family traditions are something you do together,they _____________ (strength) the bonds between you and your family. ③练习中国功夫不仅可以强身健体,还可以培养性格。 Practicing Chinese kung fu can not only ________ _______ ________ __________, but also develop one's personality. ④[2026辽宁锦州月考]真正的朋友既宽容又善解人意。他们明白,人无完人,每个人都有自己的优点和 　strength     　one's     　up     　build     　strengthen     strength          第1讲　描述运动的基本概念 缺点。 A true friend is forgiving and understanding. They know that no one is perfect and that ____________ ____ _____ ____________ _______ _______________. 　weaknesses     　and     　strengths     　their     　has 　everyone     第1讲　描述运动的基本概念     　　The true failure is the failure to learn from failure.真正的失败是没能从失败中吸取教训。   (the) failure __________ sth.未能做某事   　to do     第1讲　描述运动的基本概念 failure 失败 不可数 失败的人(或事物) 可数 success 成功 不可数 成功的人(或事物) 可数 第1讲　描述运动的基本概念   fail vi.失败;未做成;出故障;失灵;衰退 vi.& vt.不及格,未能通过 fail in sth.在……方面失败 fail to do sth.未能做成某事 never fail to do sth.总是会做某事 words fail sb.某人不知说什么好 第1讲　描述运动的基本概念   ①[2022浙江1月]I felt he treated me as though I would hold him back and probably make him fail ______ ____(get) an A in the course. ②[2026黑龙江龙东地区联考]He believes ____________(fail) is part of learning and that by making mistakes, students learn how to try again and improve. ③刚开始,这对双胞胎感到难过,因为他们没做成一顿美味的母亲节早餐。 In the beginning, the twins felt sad because _______ _________ _______ ____________ a delicious Mother' s Day breakfast. 　cook/make     　to     　failed     　they     　failure          　to get 第1讲　描述运动的基本概念   第1讲　描述运动的基本概念     　　Even though giving up smoking is not easy, it will bring long-term benefits to your body and mind.尽管戒烟并非易事,但它会给你的身心带来长期益处。   　　This is a rare chance, and he doesn't want to give it up.这是一个难得的机会,他不想放弃它。   ①give up为“动词+副词”型短语,后接名词作宾语时,宾语可以放在up后面,也可以放在give和up之间, 但宾语为代词时,宾语只能放在___________________。 　give和up之间/up前面     第1讲　描述运动的基本概念 ②give up __________ sth.放弃做某事 ③give up on...对……不再抱希望 ④give sth.↔up to...把……交给/让与……   give in (to...)(向……)屈服/投降/让步 　doing     第1讲　描述运动的基本概念   ①[2026广西南宁月考]A year passing, I realized that it was not smart of me to give up _______ what I loved. ②On a New York City subway, will anybody give up his seat _______ a stranger? ③[2026山东泰安期中]很多人轻易放弃跑步。为了避免那种情况,我在墙上贴了一张海报,它时刻提醒 着我跑步后那种舒畅的感觉。 ________ _________ _________ _______ __________ easily. In order to avoid that, I put up a poster on the wall that always reminds me how refreshed I feel after a run. 　running     　up     　give     　people     　Many     　to     　on     第1讲　描述运动的基本概念   第1讲　描述运动的基本概念     　　The Dragon Boat Festival is usually celebrated with the traditional boat racing, which rowers com- pete in on long and specially decorated wooden boats.端午节通常以传统的划船比赛来庆祝,划船手们 在长长的专门装饰好的木船上参加比赛。     ①compete ________...为……而竞争;为……参加比赛 　for     第1讲　描述运动的基本概念 ②compete with/against...和……竞争 ③compete _______...参加……比赛     　in     第1讲　描述运动的基本概念   ①[2024新课标Ⅱ]You'll compete _________________ fewer tourists, save money, experience a different side of a popular place, and boost the economy when tourism is traditionally slower. ②[2023新课标Ⅰ]On Oct. 11, hundreds of runners competed ____ a cross-country race in Minnesota. Melanie Bailey should have finished the course earlier than she did. ③Museums must compete ________ people's spare time and money with other amusements. ④[2026广东江门一中月考]After graduating in 2017 and stepping into the highly _______________ (compete) online clothing industry, Ren realized he needed to find a specialized market. ⑤More than 10,000 ______________ from different countries came to Beijing for medals in the _________ ________ games. (compete) tive     　competi- 　competitors     　competitive     　for     　in     　with/against     第1讲　描述运动的基本概念     　　I hear him making sense of friendship and its limits.我听见他正在说他对友情及其界限的理 解。 [2021浙江1月] It makes sense for you to buy a large pack because it works out cheaper.你买一大包很明智,因为这样 算下来更便宜。   ①make no sense 没意义,讲不通 第1讲　描述运动的基本概念 ②make sense _______ sth.理解/弄懂某事物 ③It makes sense (for sb.) __________ sth.(某人)做某事是明智的。   ①sense n.感觉;理解力;见识,良好的判断;意义 in a/one sense(=in some senses)从某种意义上讲 in no sense无论如何都不(放在句首时,句子使用部分倒装) get a better sense of...更好地了解…… a sense of direction/humour/belonging/achievement方向感/幽默感/归属感/成就感 There is no sense in (doing) sth.(做)某事是没道理的。 ②common sense 常识 　to do     　of     第1讲　描述运动的基本概念   ①[2026河北石家庄二中期中]“It makes sense ______________(develop) a geographical landscape that supports the cities and provides relaxation,” Wils says. “These are actually very easy to combine.” ②学生无论如何都不能把考试前熬夜学习视为一种策略。 ______ ______ _________ can students view staying up late to study before exams as a strategy. ③[2024浙江1月]由于方向感差,伊娃发现无法在这么大的一栋建筑里四处走动。 Having ______ ______ _________ _______ __________, Eva found it impossible to get around in such a huge building. ④[2023新课标Ⅰ]研究人员试图更好地了解小组成员在讨论中实际做了什么。 　direction     　of     　sense     　poor     　a     　sense     　no     　In     　to develop     第1讲　描述运动的基本概念 The researchers tried to _______ _____ _______ _________ _______what the group members actually did in their discussion. 　of     　sense     　better     　a     　get     第1讲　描述运动的基本概念     　　When he got home, he buried his head in the quilt, pretending to be sleeping.回到家后,他把头埋 到被子里,假装正在睡觉。   　　To his parents' worry, he sometimes pretended to have gone to bed, but in fact, he worked late into the night.令他父母担心的是,他有时假装已经上床睡觉了,但实际上,他工作到深夜。   第1讲　描述运动的基本概念 ①pretend to do sth.假装做某事 ②pretend ________________ sth.假装正在做某事 ③pretend _________________ sth.假装已经做了某事 ④pretend to sb. that...向某人假装…… 　to have done     　to be doing     第1讲　描述运动的基本概念   ①[2026黑龙江牡丹江二中期中]They work for a mountain king but unexpectedly lose their jobs. To sur- vive, they pretend __________(be) Tang Monk and his group from Journey to the West and set off on a west- ward journey. ②[2026浙江省A9协作体期中联考]When the teacher walked past his desk, he pretended _____________ (take)notes, nodding his head from time to time as if agreeing with what the teacher was saying. ③He pretended _______ his family that everything was fine. 　to     　to be taking     　to be     第1讲　描述运动的基本概念   第1讲　描述运动的基本概念     　　He had the house rebuilt rather than repaired.他让人重建了房子,而不是修缮它。 　　Rather than watering rows of soil, the system provides just the right amount to each plant.该系统 并非浇灌成排的土壤,而是为每一株植物提供恰好适量的水分。 [2024新课标Ⅱ]   ①rather than可用作介词,相当于instead of,后接名词、代词或_____________。 　动词-ing形式     第1讲　描述运动的基本概念 ②rather than 也可用作连词,连接两个并列的名词、代词、形容词、副词、分词等。   　　①rather than连接两个并列的不定式时,rather than后面的不定式常省略to。 　    •They decided to accept the new rules rather than give up.他们决定接受新规定而不是放 弃。 　　②rather than连接两个名词或代词作主语时,谓语动词应与rather than前面的主语在人称和数上保 持一致。 第1讲　描述运动的基本概念   ①The director, rather than the two clerks, ___________(be) responsible for the incident. ②[2021新高考Ⅱ]使房间保持凉爽而不是温暖,以避免感到困倦。 Keep the room cool __________ ________ _________ to avoid feeling sleepy. ③[2026浙江省台金七校联盟期中联考]每次你这样做时,都会强化一个根植于勇气而非恐惧的自我形 象,这让你不太可能受外界评价的影响。 Each time you do this, you strengthen a self-image rooted in courage _________ ________ _________, making you less likely to be influenced by external judgments. 　fear     　than     　rather     　warm     　than     　rather     　was/is     第1讲　描述运动的基本概念   第1讲　描述运动的基本概念     　　This term, the English teacher lays great stress on reading.这学期,英语老师非常重视阅读。 　　The head teacher stressed the importance of learning English well.校长强调了学好英语的重要 性。    ①under stress处于压力之下 ②put/lay/place stress _______...强调…… ③relieve/ease/reduce stress缓解/减轻压力 　on     第1讲　描述运动的基本概念  ④stress the importance _______...强调……的重要性 ⑤stress (sb.) out (使某人)焦虑不安   ①stressed(=stressed out) adj.焦虑不安的 ②stressful adj.压力重的;紧张的 a stressful job造成沉重压力的工作 　of     第1讲　描述运动的基本概念   ①[2023全国甲]Thankfulness has a lot of benefits: Research shows it makes us happier, less __________ (stress) and even more optimistic.  ②[2025北京]Another key theme involves finding some kind of positive meaning after __________(stress) events. ③[2026广东广州期中]当学生们得分或助力球队获胜时,他们会产生一种成就感,这种成就感能减轻压 力、改善心情。 When students score a goal or help their team win, they feel ______ _______ _______ _______________ that ___________________ ___________ and improves their mood. 　stress     　relieves/eases/reduces     　achievement     　of     　sense     　a     　stressful     　stressed     第1讲　描述运动的基本概念 词汇 释义 用法& 拓展 fitness n.健康;健壮;适合 fit adj.健康的;适合的;合格的;能 胜任的 　be fit for适合;能胜任 高频词汇积累 第1讲　描述运动的基本概念 event n.比赛项目;大事;公开活动 辨析:accident、incident、event accident通常指偶然发生的或突 发的不幸事件,往往导致不良后 果。 incident尤指暴力的、不寻常的 或重要的事件,无论是好是坏。 也可指国际上的争端。 event尤指重要的事情,包括国 家、历史、国际层面的大事件 或大型运动项目。 第1讲　描述运动的基本概念 come along 跟随;到达;出现;进步;赶快 Come along! You're late.快 点!你迟到了。 My English has come along a lot recently.最近我的英语进步 很大。 track n.跑道;足迹;路线;铁路轨道 vt.& vi.追踪;跟踪 keep/lose track of...了解/不了解 ……的动态;与……保持/失去联 系 be on track步入正轨;做法对头 track down追查到;搜寻到 第1讲　描述运动的基本概念 work out 锻炼;计算出;解决;制订出;成功 地发展;弄懂   work out a problem解决问题 work out a plan制订一个计划 work out the bill把账单算出来 make it 获得成功;准时到达;能够出席;幸 免于难 The train leaves in five minutes— we'll never make it.火车五分 钟后就开了,我们绝对赶不上 了。 第1讲　描述运动的基本概念 athlete n.运动员 athletic adj.强壮的,擅长运动的;运动员的 set an example 树立榜样 set an example for/to...给……树立榜样 determination n.决心;决定 determine v.决定;确定;测定 　determine to do sth.决定做某事 determined adj.意志坚定的 　be determined to do sth.下定决心做某事 graceful adj.优美的,优雅的 grace n.优美,优雅 gracefully adv.优雅地 第1讲　描述运动的基本概念 million num.一百万 a(one)/two million一百万/两百万 (million用单数形式) millions of...数百万……(million 用复数形式) cheat vi.作弊;舞弊 vt.欺骗;蒙骗 n. 欺骗手段;骗子 cheat sb. into doing sth.欺骗某人 做某事 cheat sb. (out) of sth.骗取某人的 某物 cheater n.骗子,作弊者 第1讲　描述运动的基本概念 audience n.观众;听众 audience为集合名词,本身也有单 复数之分。其为单数且作主语 时,若强调许多个体,谓语动词用 复数;若强调一个整体,谓语动词 用单数。其为复数作主语时,谓 语动词用复数。 第1讲　描述运动的基本概念 positive adj.积极的;正面的;乐观的;肯定 的 be positive about...对……积极乐 观 positively adv.乐观地;肯定地;带 正电地  negative adj.消极的;负面的;否 定的;坏的 diet n.规定饮食;日常饮食 vi.节食 a balanced diet均衡的饮食 be on a diet在节食 go on a diet开始节食 第1讲　描述运动的基本概念 make a difference 有作用或影响 make a difference (to/in...) (对… …)有影响 make no difference (to/in...)(对… …)没有影响 compare... with/to/ and... 将……与……比较 compared with/to...与……相比 (常作状语) compare...to...把……比作…… error n.错误;差错 in error=by mistake错误地 make an error=make a mistake犯 错 第1讲　描述运动的基本概念     Even if/Even though (I am) invited, I won't go to such a bad lecture.即使我被邀请了,我也不会去听如 此糟糕的讲座。   第1讲　描述运动的基本概念 　　①even if/even though引导让步状语从句,意为“_____________”。 　　②在含有even if/even though引导的让步状语从句的主从复合句中,当从句的主语和主句的主语一 致(或从句的主语为it),且从句谓语中含有be动词时,从句的主语和谓语中的be动词可以同时_______。 　省略     即使;虽然;尽管     第1讲　描述运动的基本概念   ①[2026四川成都外国语学校开学考试]一项新研究表明,即便你不常读书,仅仅身处有书的环境也能获 益。 A new study suggests that just being around books has its benefits—_______ _______________ _______ _____ _________ ______________ often. ②[2022新高考Ⅱ]随着年龄的增长,即使我们是健康的,心脏处理氧气的效率也确实不如以前。 As we age, ________ _____________ _______ ______ _____________, the heart just isn't as efficient in processing oxygen as it used to be. 　are healthy     　we     　if     　though/even     　even     　read them     　don't     you          　if     　though/even     　even     第1讲　描述运动的基本概念 译文:她以前面对过种种困难,她知道如果她的年轻的球员们能团结起来,她们就能获胜。 宾语 条件状语 第1讲　描述运动的基本概念 译文:他在芝加哥创办的“男孩女孩俱乐部”从1996年开始一直在帮助年轻人。 定语 第1讲　描述运动的基本概念 译文:最后,我不再拿自己跟女演员和模特儿作比较,也不再对我的脸或身体挑毛病了。 comparing looking 第1讲　描述运动的基本概念 附加疑问句 　　附加疑问句,又称反意疑问句,主要用于口语,其作用是说话人向对方验证自己的陈述或判断,也可 用于祈使句表示请求或者建议。 第1讲　描述运动的基本概念           第1讲　描述运动的基本概念 　　附加疑问句包括陈述部分和附加疑问部分。附加疑问部分的基本构成:助动词/be动词/情态动词+ 表示主语的代词。附加疑问部分的构成需要注意三个规则: (1)附加疑问部分是基于前面的陈述部分而生成的,所以附加疑问部分的助动词/be动词/情态动词须与 陈述部分保持一致。 (2)附加疑问部分的主语必须用①_______代词的主格,且与前面陈述部分的主语相对应。如果陈述部 分的主语是名词(短语),附加疑问部分用相对应的代词。 (3)附加疑问部分与陈述部分要保持肯定与否定的相反关系(前肯后否或②_________)。 　前否后肯     　人称     第1讲　描述运动的基本概念     　　—His sister attended the meeting, didn't she?他妹妹参加会议了,不是吗? 　　—Yes, she did./No, she didn't.是的,她参加了。/不,她没参加。 　　—His sister didn't attend the meeting, did she?他妹妹没有参加会议,是吗? 　　—Yes, she did./No, she didn't.不,她参加了。/是的, 她没参加。   (1)在回答附加疑问句时,要根据实际情况回答,不管是“前肯后否”型还是“前否后肯”型,只要事实 是肯定的,就用Yes回答,事实是否定的,就用No回答。 (2)注意答语内部的一致性,即Yes后跟③_______结构,No后跟否定结构。 　肯定     第1讲　描述运动的基本概念 (3)在回答“前否后肯”的附加疑问句时,Yes翻译为“不”,No翻译为“④______”。 　是     第1讲　描述运动的基本概念     　　Nothing will change his decision, will it? 　　He seldom came here, did he? 　　He dislikes pop music, doesn't he?   　　陈述部分含有never、hardly、seldom、no、nothing、nobody、neither、few、little(几乎没有)等表 示否定或半否定意义的词时,附加疑问部分用⑤_______形式。但是若陈述部分用了带否定前缀或后 缀的词,如dislike、useless、unable等,仍看作肯定,附加疑问部分用⑥_______形式。   　否定     　肯定     第1讲　描述运动的基本概念 Everything has gone wrong today, hasn't it? 　　Nothing was in it, was it? 　　No one knows that singer, do they? 　　Everyone worked hard for it, didn't they?   (1)当陈述部分的主语是表示物的不定代词something、anything、nothing、everything时,附加疑问部分 的主语用⑦_______。 (2)当陈述部分的主语是表示人的不定代词everyone、everybody、anyone、anybody、no one、no- body、someone、somebody时,附加疑问部分的主语常用they,当强调个体时也可以用he。   　　Those/These books are yours, aren't they? 　it     第1讲　描述运动的基本概念 　　This/That book belongs to you, doesn't it?   　　当陈述部分的主语含指示代词this、that、those、these时,附加疑问部分的主语用相应的人称代词, 即this、that对应⑧_______;those、these对应⑨_________。   　　He said that the key was lost, didn't he? 　　I don't believe he cares about clothes, does he?(宾语从句的否定转移到主句中) 　　I like apples, but my mother likes bananas, doesn't she?   (1)如果陈述部分是一个含有that引导的宾语从句的主从复合句,附加疑问部分一般要与⑩_______保 持一致。但是,当陈述部分是“I am sure/I am afraid/I think/I suppose/I believe/I...+宾语从句”结构时,附 　主句     　they     　it     第1讲　描述运动的基本概念 加疑问部分要与 _________ 保持一致,而且要注意宾语从句的否定转移现象(即从句的否定转移 到主句中)。 (2)如果陈述部分是并列句,附加疑问部分遵循“就近原则”,通常和后面的分句保持一致。   　　Come and join us, will you/won't you? 　　Don't open the window, will you? 　　Let's go home together, shall we? 　　Let us/me go home, will you?   (1)陈述部分是肯定的祈使句时,附加疑问部分一般用will you/won't you;陈述部分是否定的祈使句时,附 加疑问部分一般用will you。 　宾语从句     第1讲　描述运动的基本概念 (2)陈述部分是以Let's开头的祈使句时,附加疑问部分用 __________;陈述部分是以Let us或Let me开 头的祈使句时,附加疑问部分用  _____________。   　　There are no living things on the moon, are there? 　　There stands a big tree behind the house, doesn't there?   　　当陈述部分是There be句型或其变体时,附加疑问部分用 ________,附加疑问部分的be动词/助动 词/情态动词要和There后的动词保持一致。 　there     　will you     　shall we     第1讲　描述运动的基本概念   用恰当的附加疑问部分补全对话 Host:You must have lived in Hollywood for many years, haven't you? Guest:When I was eighteen years old, I came here to write my first screenplay(电影剧本). Host:You didn't know anyone here at first, ①____________? Guest:No, I didn't. And I didn't have a cent to my name(身无分文)—just some ideas and a lot of hope. It sounds crazy, ②_______________? Host:But things have worked out for you, ③______________? You're working on another screenplay now, ④_______________? Guest:Yes. It's a comedy about some kids who become invisible. 　aren't you     　haven't they     　doesn't it     　did you     第1讲　描述运动的基本概念 Host:Speaking of kids, you have some of your own, ⑤______________? Guest:Two boys and a girl—all very visible! Host:I know what you mean. Do you ever wish they were invisible? Guest:Now, that's an interesting thought, ⑥_____________? 　isn't it     　don't you     第1讲　描述运动的基本概念 $