1、Unit 5 Theme parks晨背15分钟填词并背记A Unique Theme ParkAs soon as our shuttle got close to the theme park by the freeway,everyone came to life and put on cloth sneakers in advance for an outing.Our translatorpaid for the admission,and we started enjoying the various attractions in the sunlight.According to
2、 the travel brochure,this unique park is famous for its well preserved minority culture.We experienced many deeds of the early settlers,such as swinging across rivers,hunting creatures in the jungle,or taking part in swordsfighting tournaments.This park is also famous for its wooden souvenirs.Whiche
3、ver we bought in the central shop was made of wood,and wherever we went we could see minority carpenters working.They made wooden tools,wooden cartoon figures,wooden athletic products and so on.They even built a huge wooden engine with a lengthof 20 metres,which was modeled after a real one.This the
4、me park is really a fantasy amusement park.No wonder it has become the brand of local tourism.一个独一无二的主题公园我们乘坐的往返大巴经高速快要到达主题公园时,大家都活跃了起来,并且提前穿上了布鞋,做好这趟外出旅游的准备。翻译付了入场费后,我们就开始在阳光下欣赏各种各样吸引人的东西。根据旅行手册的介绍,这个独一无二的公园因其得到良好保护的少数民族文化而闻名。我们体验了许多早期定居者所做的事,如用绳子荡过河,在丛林中猎捕动物,或者参加剑术比赛等等。这个公园还因为它的木制纪念品而闻名。我们在中心商场购买的
5、任何一件物品,都是用木头制作的,无论我们走到哪里,都可以看见少数民族的木匠们在忙碌。他们制作的有木制工具、木制的卡通人物、木制的运动用品,等等。他们甚至还根据一台真实发动机仿造了一台长度有 20 米的木制发动机。这个主题公园真是个充满幻想的娱乐公园。怪不得它成为当地旅游业的一个品牌。1 (adj.)中心的;中央的 (n.)中心2 (n.)消遣;娱乐(活动)(vt.)使发笑;使快乐3 (n.)有吸引力的事物;吸引 (vt.)吸引 (adj.)吸引人的4 (n.)长度;长 (vt.&vi.)加长 (adj.)长的centralcentreamusementamuseattractionattrac
6、tattractivelengthlengthenlong5 (n.)移民;殖民者 (vt.&vi.)定居;解决6 (n.)译员;翻译 (vt.&vi.)翻译 (n.)翻译;译文7 (n.)少数;少数民族 (反义词)(n.)多数8be familiar 对熟悉settlersettletranslatortranslatetranslationminoritymajoritywith9come 实现10have 玩得高兴11take part 参加12face face 面对面truefuninto重点知识30分钟various adj.不同的;各种各样的(P34)(1)单句语法填空The i
7、sland offers such a wide (vary)of scenery and wildlife.There are (vary)books for us to choose from,like history books,science books,literary books and so on.varietyvarious(2)单句写作对于共享单车,人人意见不一。Opinions on the shared bikes person person.这些状况会随时间而改变。These situations will.vary fromtovary with time(1)var
8、ious 由于种种原因 various and 各种各样的形状和大小(2)n.变化;种类a variety ofn.ofn.各种各样的forreasonsinshapessizesvarietyvarieties(3)vi.&vt.有变化;改变vary 随变化vary 在方面变化vary .从到不等;在到之间变动 varywithinfromtopreserve vt.保存;保留 n.保护区(P34)(1)单句语法填空Well (preserve)in the nature reserve,pandas live a happy life.Oil preserves metal rust(生锈
9、).preservedfrom(2)单句写作在自然保护区内不准打猎。No hunting is allowed.in the nature preserve(1)preserve.保护免于be 保护得好(2)自然保护区(3)n.保护;维护 fromwell preservednature preservepreservationadvance vt.&vi.前进;促进;提前 n.前进;进步(P38)(1)单句语法填空We require the students full flight details at least 4 weeks advance.Having shown you arou
10、nd our school,we will introduce our most(advance)science lab to you.inadvanced(2)单句写作如果你想看下周日的电影,你最好提前订票。If you want to see the film next Sunday,youd better.这将进一步促进两国的友好关系。This will further between the two countries.book the ticket in advanceadvance the friendly relations(1)an advance 在某方面有改善(2)adva
11、nce 预先;提前(指事先)in advance 在前面;提前 advances in 在方面取得进步(3)adj.高等的;先进的;高级的 on/uponinofmakeadvancedadmission n.允许进入;承认;入场费(P38)单句语法填空Sam has gained the (admit)to a famous company.To his great joy,he (admit)to a key university.In the end,he admitted (steal)the diamond necklace.admissionwas admittedhaving s
12、tolen/stealing(1)admission to 获准进入(2)v.承认;允许进入admit sb./sth.sth.允许某人/某物进入 gainadmitintobe 录取;批准加入admit sth.承认做某事(承认事实)admit sth.承认做某事(承认犯错)admitted to/intoto doingdoing/having doneno wonder 难怪;不足为奇(P34)单句写作他三天没睡觉了。难怪他疲惫不堪。He hasnt slept at all for three days.he is tired out.我惊奇地看着她绕着其他孩子一圈圈地跑。I watc
13、hed as she ran circles around the other kids.It is no wonder/No wonder(that)in wonder我想知道您是否能给我一些如何学习英语的建议。I you could give me some advice on how to learn English.既然我们的工作做完了,再待下去也毫无意义了,所以我们还是回家比较好。Now that we have finished our work,in staying any longer;we may as well go home.他是学校里最好的学生,毫无疑问他会获得一等奖。
14、He is the best student in the school.he can get first prize.wonder whether/ifthere is no point/senseThere is no doubt that(1)(that).Its no wonder(that).难怪;不足为奇 wonders 创造奇迹 wonder 惊奇地(2)wonder at/sth.对某事感到惊讶No wonderdo/workinabout名师点津(1)I wonder whether/if.常用于请求别人做某事或请求对方许可的情景中,表示委婉的语气。(2)There is n
15、o doubt that.毫无疑问There is no point/sense(in)doing sth.做某事毫无意义。There is no need to do sth.没有必要做某事。be modelled after 根据模仿;仿造(P34)单句写作这种教育体制模仿了英国的教育体制。The educational system the British educational system.was modelled after这台机器是以其发明者的名字命名的。The machine its inventor.一个好的教练应该树立好榜样并且充当年轻运动员的榜样角色。A good coa
16、ch should set a good example and act as to young athletes.is named aftera role model(1)model.根据模仿;以作的榜样(2)a top fashion model a role model the latest model (3)name.以命名after一个顶级时装模特好榜样最新的型号aftercome to life 活跃起来(P38)单句写作我爱看万物在春天复苏。I love to watch everything again in spring.当谈到文学时,他马上活跃了起来,他文学方面的才能近来显
17、露出来了。literature he immediately,and his talent for literature has e to lifeWhen it comes tocomes to lifecome to light 研究猛犸的专家们希望能破解它们的基因秘密,让它们获得重生。Experts studying mammoths hope to find the genetic secrets of them and.bring them back to life(1)come to life 苏醒过来 恢复常态come to 被发现;被知晓;显露 comes to.当谈及back
18、come to(oneself)lightwhen it(2)使某物生动;使某物恢复生机 of life 充满生机make 谋生;生活名师点津 不同于 bring sth.back to life,come to life 为不及物动词短语,没有被动语态,一般不用于进行时。bring sth.(back)to lifefulla livingWhichever and whatever you like,there is a theme park for you!(P34)选词填空(whoever/whenever/whatever)Dont worry.You can leave it to
19、 is in charge of the fund raising activities.whoever It is generally considered unwise to give a child he or she wants.I feel depressed,it is my friends who cheer me up.whateverWhenever(1)whatever,whichever,who(m)ever 既可引导 从句,又可引导 从句。(2)no matter what,no matter which,no matter who(m)只引导 从句。让步状语名词性让步
20、状语Futuroscope is not only for individuals,but is also the perfect mix of fun and learning for class outings.(P38)单句写作不只是你,他也得离开。Not only you but also he to leave.她不仅在课堂上讲英语而且在家也讲。She speaks English at home.hasnot only in class but also通过这样做,我不仅可以与他人分享好的想法,而且也学会了清晰地表达自我。By doing so,not only good idea
21、s with others but I also learn to express myself clearly.can I share(1)not only.but also.用于连接两个表示并列关系的成分,着重强调后者,其意为“不仅而且”;其中的 有时可以省略。(2)not only.but also.连接两个句子,且 not only 位于句首时,后面的句子要用部分倒装,后面的句子不用倒装。alsonot onlybut also(3)not only.but also.连接的两个成分作主语,其谓语动词的数通常与 面的主语保持一致。名师点津 not only 不能分开使用;but als
22、o 既可以连用,也可以分开;also 可以省略。后课文语法填空5分钟There are 1 (vary)kinds of theme parks in the world with a specific theme for each.The theme park you are 2 (probable)most familiar 3 is Disneyland,4 can be found in several parts of the world.5 will bring you into a magical world and make your dreams come true,6 yo
23、u are travelling through space,visiting a pirate ship or 7 (meet)your favourite fairy tale or Disney cartoon character.As you wander around the fantasy amusement park,you may see Snow White or Mickey Mouse in a parade or on the street.Of course Disneyland also has many exciting rides,from giant swin
24、ging ships to 8 (terrify)free-fall drops.With all these attractions,no wonder 9 (tour)is increasing wherever there is a Disneyland.If you want to have fun and more than fun,10 (come)to Disneyland!1 2.3.4.5.6 7.8.9.10.variousprobablywithwhichItwhethermeetingterrifyingtourismcomecome true 的主语不可为人,而应是某
25、物 dreams come truesb.realize ones dreamswhether.or.“无论还是”,用于连接并列成分构成名词的后缀常用的有-(e)r/or(从事某事的人),-ese(某地人),-ian(精通的人),-ist(专业人员),-ment(性质,状态),-ness(性质,状态),-tion(动作,过程)等。amuseamusement 娱乐;attractattraction 吸引;differdifference 区别;writewriter 作家;JapanJapanese 日本人;musicmusician 音乐家;artartist 艺术家随堂检测10分钟.单句
26、语法填空1When the boy first came to the army,he saw the soldiers(swing)their arms together as they marched.2The living room of the house is double the (long)of the bedroom,which suits the family pretty well.3I was close to (knock)down the other day when a car passed by me at full speed.4People are usual
27、ly well informed of what is happening due to the(advance)media,such as television,newspapers and the Internet.swinginglengthbeing knockedadvanced5Of all the universities in the world,those in the EU are the(attract)because they have a variety of cultures and teaching methods.6Although many of the st
28、ones have fallen out,the monument remains very well (preserve).7Eddies grandfather was one of the towns first (settle).most attractivepreservedsettlers8Now the hard winter has gone,so we can take away our winter(cloth).9The young man,who by then had gained admission a university,decided to do some p
29、art-time jobs to gain more practical experience.10The old woman is warm-hearted.She is always ready to help(who)is in trouble.clothing/clothesto/intowhoever.教材微写作A根据提示完成句子1我们班同学组织了一次远足。(outing)答案:Our classmates organized an outing.2我们去了市中心的水上主题公园。(theme park)答案:We went to the water theme park in the
30、 central city.3那里有各种各样的旅游景点。(various)答案:There are various tourist attractions.4我们提前在网上订票。(in advance)答案:We booked the tickets online in advance.5我们一看到美景就立刻兴奋起来。(come to life)答案:We came to life the moment we saw the beautiful scenery.6我们买的是学生票,因而很多人都有多余的钱买小册子和纪念品。(souvenir)答案:We got admission tickets
31、 for students,so many of us had extra money to buy a brochure and some souvenirs.B将以上句子连成一篇逻辑严密的短文,注意书写规范 答案:Our classmates organized an outing to the water theme park where there are various tourist attractions in the central city.We booked the tickets online in advance.We came to life the moment w
32、e saw the beautiful scenery.We got admission tickets for students,so many of us had extra money to buy a brochure and some souvenirs.单元拓能训练单元话题写作应用文你市拟兴建一处大型主题公园,需要在某英文网站上宣传。请你根据以下提示,用英文写一份宣传材料。1坐落在市南部,Green Lake 附近,占地 870,000 平方米;2主要特色:有 70 米高的过山车(roller coaster);冒险项目;娱乐与教育相结合的形式;3票价:周末八折;4开放时间:10
33、月 8 日。注意:1.词数 100 左右;2可以适当增加细节,以使行文连贯。精彩范文A theme park,located in the south of our city,is to be built near the Green Lake.It will be a world-famous theme park covering an area of 870,000 square meters.To provide totally different experiences,the theme park will build a roller coaster with a height
34、of 70 meters.Besides,for those who are crazy about adventure,we have various activities where you can fully enjoy the excitement.We offer visitors experiences that combine entertainment with education.As for the ticket fare,tourists can enjoy a discount of 20 percent at weekends.As far as I know,it
35、is scheduled to be open to the public on October 8th.Come and experience your wonderful journey!课时作业.阅读(2020四省高三名校第一次大联考)The Largest World Fairs of All TimeNew York World FairNew York,1939The 1939 New York World Fair was the largest exposition(博览会)in US history with visitors over 14 million.The Fair
36、 was planned during the Great Depression and was aimed at relieving the city from economic depression by attracting foreign investment.Major inventions to emerge(出现)at the New York World Fair included nylon fabric,a streamlined pencil sharpener,and a futuristic car city imagined by General Moiors.Ex
37、position UniverselleParis,1900The Exposition Universelle was one of the earliest expositions to feature multiple countries with France inviting various countries to display their technological advancements and cultural heritage.Exposition Universelle was the birthplace of many inventions that we enj
38、oy today including escalators(自动扶梯)and talking films.Expo 70Osaka,JapanExpo 70 was the biggest exposition of the 20th century and the second largest in history.Expo 70 had a record attendance of over 64 million visitors,a 40-year record that would not be broken until Expo 2010 in Shanghai.Notable ex
39、hibitions included a large piece of moon rock that was brought back from theApollo 12 mission.Expo 2010Shanghai,ChinaExpo 2010 goes down as the largest fair in history,having attracted 73 million people.It also had the highest international participation of any exposition in the world with 246 count
40、ries participating.The opening ceremony featured the biggest LED screen in the world as well as one of the biggest fireworks displays in history.篇章导读:本文是一篇应用文,介绍了几个有史以来最大的世界博览会。1Which Expo is the biggest one in history?AExpo 70Osaka,Japan.BExposition UniverselleParis.CExpo 2010Shanghai,China.DNew Yo
41、rk World FairNew York.答案:C 细节理解题。根据最后一段中的“Expo 2010 goes down as the largest fair in history.”可知,2010 年上海世博会是历史上规模最大的一届世博会,故 C 项正确。2What is the purpose of New York World Fair?ATo attract more inventions.BTo improve the nations economy.CTo display the technological development.DTo share achievements
42、with other countries.答案:B 细节理解题。根据第一段中的“aimed at relieving the city from economic depression by attracting foreign investment”可知,纽约世博会的目的是通过吸引外资来缓解国内经济萧条,也就是改善国家经济,故 B 项正确。3What did Expo 70 in Japan feature?AA piece of rock from space.BA rocket in the Apollo 12 mission.CThe cultural heritage from co
43、untries.DThe biggest LED screen in the world.答案:A 细节理解题。根据第三段中的“Notable exhibitions included a large piece of moon rock that was brought back from the Apollo 12 mission.”可知,1970 年日本世博会的特色是展出了阿波罗 12 号带回来的一大块月球岩石,故 A 项正确。【词汇积累】notable adj.值得注意的;显著的;重要的 cultural heritage 文化遗产 go down 发生【佳 句 背 诵】Exposit
44、ion Universelle was the birthplace of many inventions that we enjoy today including escalators(自动扶梯)and talking films.巴黎世界博览会是如今我们正在使用的许多发明的诞生地,包括自动扶梯和有声电影。.完形填空I have a place that is full of flowers.On the fence there is a 1 I made saying,“My roses are pretty.I grow them to 2 and share as gifts,but
45、 the 3 way to get one is to ask first.”Over the years,Ive had many chances to know 4 who have either asked for and been given,or 5 the sign and taken my roses.Years back,I noticed three teenage girls 6 taking my roses as they passed to and from school.One afternoon,they 7 the roses once more and bro
46、ke some off.I went near to them for a 8 before they ran away.I explained how they were 9 my roses by breaking them off.Later,the three girls asked for roses for a couple of years till they 10 .Many 11 have been given and received in the course of these 12 over more than 30 years of living here.Then,
47、one winter evening years later,I stepped into a store 13 a rose before my wifes birthday.The eyes of the young owner went wide when she 14 me and she wouldnt accept my money for the rose.Guess who?One of those three girls!Thats it:one 15 turn deserves another!篇章导读:本文是一篇记叙文。文章讲述了作者家院前种了很多花,因为这些花,作者结交
48、了不少朋友,揭示了善人自有善报。1A.markBsignalCsignDwarning答案:C 根据文章第二段第一句中的“the sign”可知,作者在篱笆那里竖了一块指示牌(sign)。故选 C。2A.ownBappreciateCsellDtreat答案:B 此处谈及作者种植玫瑰花的目的,根据空格后面的“share as gifts”和下文内容可知,作者种花不是为了拥有、买卖,而是为了欣赏和分享,appreciate“欣赏,赏识”。故选 B。3A.properBattractiveClegalDmain答案:A proper“合适的,正当的”;attractive“有吸引力的”;legal
49、“合法的”;main“主要的”。结合文意可知,获得玫瑰花的恰当方式是征得作者的同意。故选 A。4A.relativesBgirlsCgardenersDfolks答案:D 此空后面是 who 引导的定语从句,根据 who 后面的内容可知,此处指人们(folks)。句意:这些年来,我有很多机会认识各种人那些主动索要和被赠予玫瑰花的人故选 D。5A.destroyedBignoredCescapedDremoved答案:B 根据上文提到篱笆上有一块指示牌以及下文的“taken my roses”可知,此处表示有些人全然不顾指示牌,自己摘花。另外,or 前后的内容形成对比,ignore“忽视,不顾”
50、。故选 B。6A.finallyBexactlyCregularlyDpersonally答案:C 根据下文“as they passed to and from school”和“once more”可知,此处指三个女孩经常在上学和放学的路上摘花,因此 regularly“经常,有规律地”,符合文意。故选 C。7A.ran afterBstared atCgot tired ofDcame up to答案:D run after“追赶,追求”;stare at“凝视,盯”;get tired of“对感到厌烦”;come up to“靠近,接近”。结合文意,此处指三个女孩又来摘花,故选 D。
51、8A.talkBquestionCchargeDdebate答案:A 根据下文“explained”可知,此处作者走近她们是为了和她们交谈(talk),故选 A。question“质问”;charge“控诉”;debate“辩论”。9A.planting BpickingCprotecting Dhurting答案:D 根据下文“by breaking them off”可知,此处指将花折断对花造成了伤害(hurting),故选 D。10A.graduatedBrespondedCapologizedDfailed答案:A graduate“毕业”;respond“回答”;apologize“
52、道歉”;fail“失败”。句意:后来,直到她们毕业之前,连续好几年她们都来要花。故选 A。11A.flowersBlessonsCgiftsDideas答案:B 根据下文中的“been given and received”并结合选项可知,作者可能送花,但是不太可能收到花,文中也没有提到礼物或是想法,最符合文意的只有 lesson“教训,启迪”。句意:在那里住的 30 多年里,我在和别人交流的过程中教会了别人很多,自己也学到很多。故选 B。12A.traditionsBintroductionsCcommunicationsDexpressions答案:C tradition“传统,惯例”;i
53、ntroduction“介绍”;communication“沟通,交流”;expression“表情,表达”。此处是指作者和其他人在沟通交流的过程中彼此收获很多。故选 C。13A.in return forBin search forCin charge ofDas a result of答案:B in return for“作为的报酬;作为的替换”;in charge of“负责,主管”;as a result of“作为的结果;由于”。根据文意,作者在妻子的生日之前,进入一家花店买玫瑰花,因此他进入商店后会“寻找”自己想要买的花,in search for“寻找,寻求”符合文意。故选 B。
54、14A.recognizedBpersuadedCacceptedDbelieved答案:A 根据上文“The eyes of the young owner went wide”以及下文“Guess who?One of those three girls!”可知,年轻的店主是当年三个女学生之一,她认出了(recognized)作者。故选 A。15A.quickBwideCwillingDgood答案:D one good turn deserves another“善有善报”,为固定表达。故选 D。.七选五(2020山西省祁县中学高三月考)Curling(冰壶)is a winter sp
55、ort played on ice.Therefore,its most popular in northern countries like Canada.Curling is played in the USA by about 15,000 people.1 Scottish winters were long and there were forms of entertainment.So people began making a sport out of sliding heavy stones on the frozen lakes.The game spread,and in
56、the 1700s curling clubs formed.Then Scottish soldiers brought it to North America.2 Men,women,and children often compete on the same team,if they can slide a forty-pound stone down the ice!Both teams slide their stones toward the same goal.After all 16 stones have been cast,the team whose stone has
57、slid closest to the goal gets one point.3 The ice is so smooth and the stone is so heavy that even the smallest misjudgment in a throw can make the stone slide much too far or stop too suddenly.4 Water helps the stone slide,but it can also change the stones path.In curling,a broom is part of each pl
58、ayers equipment.A good curler must know how much force to use.The player must know the exact conditions of the ice on the court.5 That may explain why the international Olympic Committee decided to make curling an Olympic sport in 1998.APlayers compete on the court.BThen the play begins in the other
59、 direction.CCurling is played by teams of four people.DIn other words,a good curler must be a fine athlete.EThe rules are easy to learn,but playing the game is hard.FThe melting of the ice makes things tough for the curlers.GCurling probably began in Scotland in the 1500s or earlier.篇章导读:本文是一篇说明文。文章
60、主要介绍了一项奥林匹克运动项目冰壶。1G 根据后文的“Scottish winters were long and there were forms of entertainment.So people began making a sport out of sliding heavy stones on the frozen lakes.”可推知,此处是概述冰壶的历史渊源,所以 G 项“冰壶运动可能起源于 16 世纪或更早的苏格兰。”符合语境。故选 G。2C 根据本段的整体内容可知,本段主要讲的是冰壶的规则,所以 C项“冰壶比赛由四人组成的队伍进行。”符合语境。故选 C。3E 前文讲的是冰壶
61、的规则,本段讲的是对冰壶的掌控并非易事,所以 E 项“冰壶的规则学起来容易,但操作起来困难。”来承上启下。故选 E。4F 根据后文“Water helps the stone slide,but it can also change the stones path.”可推知,由于摩擦可能会造成场地的冰融化,从而增加操作冰壶的难度。故选 F。5D 根据下文“That may explain why the international Olympic Committee decided to make curling an Olympic sport in 1998.”(这也许可以解释为什么国际奥
62、委会在 1998 年决定将冰壶运动列为奥运会项目。)可推知,一个好的冰壶球员必须是一个好的运动员。故选 D。.概要写作阅读下面短文,根据其内容写一篇 60 词左右的内容概要。A trip to a water park can be a fun adventure for families,couples or a group of friends.Whether you prefer relaxing in a tube on a lazy river or riding a water roller coaster,a trip to one of the nations water pa
63、rks offers something exciting for everyone.However,the fun does not come without risks.People who plan to go to a water park should be careful enough to follow rules to avoid these risks.Drowning is one of the greatest dangers in water parks,especially for young children.The ability to swim is the m
64、ost important skill in a water park.Before you go to a water park,make sure that all the people know how to swim well.Do not swim in water that does not have a lifeguard on the scene.Many parks provide life jackets for freedo prepare some for your group in case some people need them.People usually c
65、hoose to go to water parks on clear sunny days,whichmeans that they are easy to get burnt in the sun,or even get heatstroke(中暑).Most of the water parks are open areas with little shelter or few buildings to block the sun,so it can be dangerous for people who have fair and sensitive skin to spend a w
66、hole day there.Be sure to wear a hat and a shirt with sleeves over your bathing suit while you are walking around.In rare cases,water park guests may be subjected to contaminated(受污染的)water.Some illnesses are easily spread in the instance.The most common cause of water contamination is small childre
67、n who are not old enough to go to the toilet.Water parks have been trying their best to avoid the spread of diseases.However,contamination is still possible.Guests can protect themselves by trying not to swallow any water and washing their hands after playing with shallow and still water.写前导读:本文是一篇说
68、明文。文章介绍了去水上乐园游玩时应注意的几点事项。精彩范文A trip to a water park can be fun but dangerous.To avoid the dangers,people should follow some rules.(要点 1)First,mastering the swimming skill is important for water park guests.Moreover,dont swim without a lifeguard around and prepare some life jackets.(要点 2)Besides,to protect yourself from the sun,you need to wear proper clothes.(要点 3)In addition,dont swallow any water and wash your hands after you play in the water to avoid illnesses,especially for small children.(要点 4)本课结束