人教版 (2019)必修 第二册Unit 1 Cultural Heritage课前预习ppt课件

这是一份人教版 (2019)必修 第二册Unit 1 Cultural Heritage课前预习ppt课件，共60页。PPT课件主要包含了课文预习·解疑清障，语篇细研·教材精读，知识探究·讲练互动，under，hits，for，informing，To forgive，do harm to，create等内容，欢迎下载使用。

[课文内容]PROMOTING CULTURETHROUGH DIGITAL IMAGES①Lanzhu, 9 August 2017. A grup f researchers and scientists frm China and ther cuntries are wrking tgether t help increase knwledge and appreciatin② f China's ancient cultural heritage. They are recrding and cllecting digital images f cultural relics frm the Mga Caves③， which were a key stp④ alng the Silk Rad thrughut⑤ China's ancient histry 【1】. Nearly 500,000 high-quality⑥ digital phtgraphs have been prduced since the internatinal prject started in 1994 【2】．【1】此处是which引导的非限制性定语从句，修饰the Mga Caves。 which在从句中作主语。
【2】本句中含有since引导的时间状语从句。since引导时间状语从句时，主句常用现在完成时，从句常用一般过去时。The Mga Caves have lng been a meeting pint⑦ fr different cultures and are part f the histry f many cuntries. Tday, the caves are just as internatinal as they were at the time when peple travelled the Silk Rad 【3】. Turists frm all ver the wrld⑧ visit Dunhuang t see the caves, and the Getty Museum in Ls Angeles has even reprduced⑨ a cpy f the caves and paintings fr peple t admire in America.【3】该句使用了句式，表示“像……一样……”。句中含有when引导的定语从句。
By sharing s many digital phts ver the Internet, the grup hpes t prmte even⑩ wider interest arund the wrld in⑪ China's ancient histry, culture, and traditins⑫. They als hpe t further⑬ educate peple abut the imprtance f safeguarding histric⑭ and cultural relics fr future generatins t understand and appreciate. As ne researcher wh is wrking n⑮ the prject explains 【4】， “Appreciating ne's wn cultural heritage is very imprtant fr understanding neself. Appreciating the cultural heritage f ther cuntries is very imprtant fr internatinal cmmunicatin and understanding.”【4】“As ne researcher wh is wrking n the prject explains”是由关系代词As引导的非限制性定语从句，As作explains的宾语，表示“正如”；“wh is wrking n the prject”是由关系代词wh引导的定语从句，修饰先行词ne researcher。wh在定语从句中作主语。
[词语积累]①digital/'dɪdʒɪtl/adj.数码的；数字显示的image/'ɪmɪdʒ/n.影像，图像；形象；印象digital image数码影像digital camera数码相机②appreciatin n．欣赏，赏识；感激appreciate v．欣赏；感激appreciate (sb./sb.'s) ding sth.感激(某人)做某事I wuld appreciate it if...如果……，我将不胜感激。③cave/keɪv/n.山洞；洞穴the Mga Caves莫高窟④stp n. [熟词生义]中途停留(处)
⑤thrughut/θruː'aʊt/prep.各处；遍及；自始至终⑥quality/'kwɒləti/n.质量；品质；素质；特征adj.优质的；高质量的high-quality adj.高质量的[反义]pr-quality/lw-quality[构词法]high-quality是由“形容词＋名词”构成的形容词，类似的单词还有：full-time全日制的，全职的；lng-distance长距离的。⑦a meeting pint一个汇合点⑧all ver the wrld在世界各地⑨reprduce vt.复制[构词法]re-是常见的动词前缀，表示“再，又”，由它构成的词还有：rearrange (重新安排), reapply (重新申请)。
⑩even在此修饰比较级。常用于修饰比较级的还有：a bit, a little, a lt, much, far。⑪prmte wide interest in...激发对……的广泛兴趣⑫traditin/trə'dɪʃn/n.[C, U]传统；传统的信仰或风俗traditinal adj.传统的traditinally adv.传统上⑬further adv.进一步(表示程度)；更远(far的比较级)⑭histric/hɪ'stɒrɪk/adj.历史上著名(或重要)的；有史时期的a histric building有历史意义的建筑a histric decisin/day/victry历史性的决定/日子/胜利[比较]histrical adj.(有关)历史的；有关历史研究的，历史学的histrical dcuments/research史学文献/研究⑮wrk n从事于……
[文化采风]莫高窟，又称“千佛洞”，中国佛教石窟，坐落在河西走廊西端的敦煌。它有洞窟735个，壁画4.5万平方米，泥质彩塑2 415尊，是世界上现存规模最大、内容最丰富的佛教艺术地。1987年，莫高窟被列为世界文化遗产。莫高窟与山西大同云冈石窟、河南洛阳龙门石窟、甘肃天水麦积山石窟并称为中国四大石窟。
[课文释译]透过数码影像推广文化2017年8月9日，兰州。来自中国和其他国家的一队研究人员和科学家正共同努力，帮助提高人们对中国古代文化遗产的了解和认识。他们正在记录并收集莫高窟文物的数码影像。贯穿中国古代历史，莫高窟一直以来都是丝绸之路沿线的重要站点。自1994年该国际项目启动以来，已出品了近50万张高质量的数码照片。莫高窟一直都是不同文化的交汇点，也是许多国家历史中的一部分。今天，这些洞窟如同那时人们沿丝绸之路前行时一样国际化。来自世界各地的游客参观敦煌，游览洞窟。洛杉矶的盖蒂博物馆甚至还复制了一些洞窟和绘画，供人们在美国欣赏。
该小组希望通过在互联网上分享如此多的电子照片，可将中国古老的历史、文化和传统推广到世界各地，激发更广泛的兴趣。他们还希望进一步教育人们了解为能让子孙后代理解和欣赏而保护历史文物的重要性。正如该项目一位研究人员所说：“欣赏自己的文化遗产对了解本国文化非常重要。了解其他国家的文化遗产对国际交流和理解非常重要。”
根据课文内容选择正确答案1．What are the researchers and scientists ding?A．Hlding an exhibitin abut cultural relics f the Mga Caves.B．Repairing the cultural relics f the Mga Caves.C．Intrducing sme knwledge abut cultural relics.D．Recrding and cllecting digital images f cultural relics.2．Why d s many peple cme t visit Mga Caves?A．Because it cntains different cultures and histry.B．Because the Silk Rad is still famus at present.C．Because the cpies and paintings were reprduced.D．Because Mga Caves has a mysterius histry.
3．Why did the Getty Museum reprduce a cpy f the caves and paintings?A．T make a frtune.B．T attract mre turists t Dunhuang.C．T make peple admire them.D．T exchange the different cultures.4．What's the purpse f sharing digital phts ver the Internet?A．T make mre mney by selling them.B．T prmte the website abut the Mga Caves.C．T teach peple mre knwledge abut culture.D．T prmte peple's interest and call n peple t prtect cultural relics.
►第一版块|核心单词 1.rf n．顶部；屋顶 v．给……盖上房顶；遮蔽(教材P7)I see that yu're lking at that carving n the rf.我看到你在看屋顶上的雕刻。a rf ver ne's head 栖身之处under the same rf 在同一屋檐下under ne rf 在同一座建筑中under ne's rf 在某人家里raise the rf (在屋内)大声喧闹，闹翻天the rf f the wrld 世界屋脊
词语拓展：tp n．顶部ceiling n．天花板g thrugh the rf＝hit the rf暴跳如雷；火冒三丈/(价格等)飞涨；激增rf sth. ver给(空地)加顶be rfed with sth.给(建筑物)盖屋顶
❶The rf f the car was nt damaged in the accident.在事故中，车顶没有遭到破坏。❷We're ging t rf ver the yard t make a garage.我们打算将院子加盖屋顶建成一个车库。 即学即练　单句语法填空①I dn't think I can live ________ the same rf as yu any lnger.②Put it back befre Dad sees yu and ________ (hit) the rf!③He desn't lk like a gd persn. I dn't want him ________ my rf again.④There are varius stres and restaurants all ________ ne rf.
2.frgive vt. & vi.(frgave, frgiven)原谅；宽恕(教材P7)Frgive me fr asking, but...请原谅我的冒昧，但是……frgive sb. sth. 宽恕某人某事frgive sb. fr (ding) sth. 原谅某人(做了)某事frgive and frget 不念旧恶，不计前嫌 ❶Frgive me. I didn't mean t hurt yu.请原谅我，我并非有意伤害你。❷I'll never frgive yu fr what yu said last night.我不会原谅你昨天晚上说的话。❸In additin, it's best fr yu t frgive and frget.此外，你最好不计前嫌。
词语积累：frgiveness n．原谅；宽恕；宽宏大量 知识联想：excuse sb. fr (ding) sth.原谅某人(做)某事thank sb. fr (ding) sth.因为(做)某事而感谢某人praise sb. fr (ding) sth.因为(做)某事而表扬某人punish sb. fr (ding) sth.因为(做)某事而惩罚某人scld sb. fr (ding) sth.因为(做)某事而责备某人
即学即练　单句语法填空/完成句子①We can't frgive anyne ________ destrying any cultural relics.②Please frgive me fr nt ________ (infrm) yu f the change.③He begged his wife t _________________ (原谅他的过错)．④He aplgized t her and hped she culd ___________________ (原谅他的鲁莽)．⑤宽恕是一种美德，但从来没有人说过它是容易的。________________ is a virtue, but n ne has ever said it is easy.
frgive him his faults
frgive him fr being rude
3．digital adj.数码的；数字显示的(教材P8)They are recrding and cllecting digital images f cultural relics frm the Mga Caves，...他们正在录制和收集来自莫高窟文物的数字图像，……digital media experts 数字媒体专家digital devices 数码设备digital cameras 数码相机in the digital age 在数字时代digit n. 数字即学即练　单句语法填空①Digital cameras arrived ________ the scene in 1997.②Freedm may cme t an end ________ the digital age.
4.image n. 形象；印象；画像；图像；影像；映像(教材P8)They are recrding and cllecting digital images f cultural relics frm the Mga Caves，...他们正在录制和收集来自莫高窟文物的数字图像，……create a new image 创造新形象a negative image 负面的形象a psitive image 正面的形象harm ne's image/reputatin＝d harm t ne's image/reputatin 损害某人的形象/名声❶His public image is very different frm the real persn.他在公众心目中的形象与他本人截然不同。❷Images f deer and hunters decrate the cave walls.洞穴壁上装饰着鹿和猎人的画像。
词汇联想：image n．(C)图像，印象，形像→imagine v．想象，认为→imaginatin n．想象力→imagery n．形象化的描述意象→imagable adj.可想像；想像得到的→imagiry adj.想像中的，假想的，虚构的
即学即练　完成句子/单句语法填空①Dn't d anything that might __________ (损害) the image f ur cuntry.②The gd deeds he has dne d ________ (creatin) a new image fr him.③We shuld d smething that can set up a psitive image fr us ________ a negative image.
5.thrughut prep.各处；遍及；自始至终(教材P8)． were a key stp alng the Silk Rad thrughut China's ancient histry.莫高窟是中国古代历史上丝绸之路沿途重要的驿站。thrughut the cuntry＝all ver the cuntry 全国thrughut the trip＝all ver the trip 整个旅途thrughut the wrld＝all ver the wrld 全世界thrughut the day/night＝all thrugh the day/night 整天/夜thrughut the year＝all thrugh the year 整年词语用法讲解：thrughut既可以指时间，也可以指空间，指时间时相当于all thrugh, 指空间时相当于all ver。
即学即练　单句语法填空①The news sn fund its way __________ the cuntry.②They exprt their prducts t markets __________ the wrld.③It's said that a large number f paper－cut wrks by experts___________China will be n shw, and sme f them are made by famus artists.④I stayed in Shanghai wrking __________ the summer.
6.quality n．质量；品质；素质；特征 adj.优质的；高质量的(教材P8)Nearly 500,000 high－quality digital phtgraphs have been prduced since...自从……以来将近50万张高质量的数码照片已被制作出来。air/water quality 空气质量/水质量the quality f life/educatin 生活质量/教育质量be f high/gd/lw/pr quality 质量好(上乘)/次(差)gds f a high quality 优质商品
词语拓展：persnal qualities个人素质the physical and chemical qualities f the rck岩石的物理特性和化学特性quality furniture高档家具quality service at a cmpetitive price质优价廉的服务
即学即练　完成句子/单句语法填空①为了改善水质政府鼓励农民种植玉米而不是水稻。The gvernment encurages farmers t grw crn instead f rice t imprve _____________.②电子书的质量很差。E－bks are _____________.③首先，更高的排名意味着更高质量的产品，或更好的服务。Firstly, the higher rating means ______________f the prduct, r better service.④We bught sme ____________ furniture t furnish ur huse.
water quality
f pr quality
the higher quality
high quality
7.traditin n．传统；传统的信仰或风俗　traditinal adj.传统的　traditinally adv.传统地(教材P8)． even wider interest arund the wrld in China's ancient histry, culture, and traditins.……提升世界各地对中国古代历史、文化和传统的更广泛的兴趣。by traditin 根据传统fllw a traditin 遵循传统break with traditin 打破传统It's a traditin... ……是一个传统carry n/cntinue a traditin 保持传统a lcal traditin 当地传统
❶By traditin, children are dressed up in Spring Festival.根据传统，孩子们在春节会盛装打扮。❷It's a traditin fr the Chinese peple t get tgether and have a big dinner n New Year's Eve.在除夕的时候，家人团聚吃丰盛的晚餐，是中国人的传统。 
知识拓展：traditinal Chinese medicine传统中药traditinal festivals传统节日traditinal methds传统方法traditinal views传统观念It is traditinal (fr sb.) t d sth.(对某人来说)做某事是传统a lng traditin悠久的传统an ld/ancient traditin古老的传统a family traditin家庭传统cultural/religius traditins文化/宗教传统
即学即练　单句语法填空/完成句子①There's ________ traditin in ur ffice that when it's smebdy's birthday, they bring a cake fr us all t share.②In sme cuntries it is traditinal fr a bride________ (wear) white.③Thugh having lived abrad fr years, many Chinese still bserve the__________ (traditin) custms.④__________ (traditinal), cllege students hld a graduatin ceremny t encurage themselves befre they set ff n their life jurney.⑤________ traditin, the cllege senir class gives a ball each spring.
Traditinally
⑥带礼物去参加乔迁派对是一种传统。It is _________ (traditin) t bring a gift t a husewarming party.⑦当会面是一对一的时候，如果主人请你喝咖啡，你应该拒绝。这可能看起来很奇怪，但这是一种文化传统。When meetings are ne－t－ne, if yur hst ffers yu cffee, yu shuld refuse. It might seem dd, but it is ________________. 
a cultural traditin
8.further adv.(far的比较级)更远；进一步 adj.更多的；更进一步的(教材P8)They als hpe t further educate peple...他们还希望进一步教育人们……further educatin 进修，继续教育further instructins 进一步的指示further/mre infrmatin 更多信息❶We had walked further than I had realized.在我不知不觉中我们已走得很远。❷Fr further infrmatin n healthy eating, visit ur website.有关健康饮食的更多信息，访问我们的网站。❸If yu have further questins, please feel free t let me knw.如果你还有问题，请随时告诉我。
易错比较：further与fartherfurther除表示“更远”之外，主要表达程度上更进一步；farther是far的另一比较级，主要是距离上更远。
即学即练　单句语法填空①After graduatin frm cllege, she went abrad fr ________ (far) study.②Step ________ (far) and I will sht immediately.③I am nly give yu s much infrmatin; yu can d sme search n the net fr ________ (far) infrmatin.④My schl is ________ (far) than yurs frm ur village.
9.histric adj.历史上著名(或重要)的；有史时期的(教材P8)． peple abut the imprtance f safeguarding histric and cultural relics...……教育人们有关保护有历史意义的文物的重要性……a histric event 有历史意义的事件a histric meeting f wrld leaders 具有历史意义的世界领导人会议即学即练　单句语法填空①Visit the palace and its varius ________ (histry) gardens, which include the famus maze (迷宫) where it is easy t get lst!②Nt all ________ (histry) buildings are attractive.
易错比较：histrical有关历史的，在历史上发生过的a histrical event历史上的事件places f histrical interest历史名胜histrical evidence/research史学证据/研究a histrical figure历史人物a histrical nvel历史小说
10.pinin n．意见；想法；看法(教材P8)What d yu think f the researcher's pinin in the last paragraph?你认为最后一段中研究人员的观点如何？ne's pinin abut/n/f... 某人对……的看法in ne's pinin(＝in ne's view) 在某人看来have a gd/bad/high/lw pinin f 对……评价好/不好/高/低ask fr ne's pinin 询问某人的观点give/express ne's pinin n... 就……发表某人的意见give vice t ne's pinin n sth. 对某事说出自己的意见
知识积累：public pinin民意；公众舆论the persnal pinin个人见解，个人意见in the authr's pinin在作者看来
❶We have different pinins n the details f the meeting.我们对会议的细节有不同的意见。❷—What's yur pinin f Lily？你认为莉莉怎么样？—She is active and generus.她积极又大方。❸In my pinin, yu shuld change yur mind right away. After all, his advice sunds reasnable.在我看来，你应该立刻改变主意。毕竟，他的建议听起来合情合理。❹The bss has a very high pinin f her.老板对她评价很高。
即学即练　单句语法填空/完成句子①There is n dubt, ________ my pinin, ________ what matters is nt the speed, but the quality f the prduct.②Mary was silent during the early part f the discussin but finally she gave vice________ her pinin ________ the subject.③________________________ (在许多人看来), that cmpany, thugh relatively (相对地) small, is pleasant t deal with.④—Mary ________________ (对……评价不好)Gerge.—________________(在我看来), she is right. 
In many peple's pinin/view
has a bad pinin f
In my pinin/view
11.cmparisn n．比较；相比(教材P8)Wrds t shw cmparisn and/r cntrast表示比较和/或对比的词cmparisn with 与……的比较by/in cmparisn (with sb./sth.) (与某人/某物)相比较make a cmparisn 进行对比by cmparisn (尤用于句首)相比之下；比较起来❶By cmparisn, mney spent n educatin increased this year.相比之下，今年的教育经费增加了。❷We carefully cmpared the first reprt with the secnd ne.我们仔细比较了第一份报告和第二份报告。❸Cmpared with Bstn, Ls Angeles is larger.和波士顿比起来，洛杉矶要大一些。
词语积累：cmpare vt.比较cmpare A with B把A和B相比较cmpare A t B把A比作Bcmpared with/t与……相比 注意：现代英语中，cmpare A t B也有“把A和B相比较”之义，但这是不规范的用法。
即学即练　单句语法填空/完成句子①It is difficult t make a _________(cmpare) with her previus bk—they are cmpletely different.②________ (cmpare) with yur translatin wrk, yur partner's wrk is better.③Peple ften cmpare a teacher ________ a gardener wh takes great care f varius plants.④_________________________ (与旧房子相比)，the new ne is like a huge palace.
Cmpared with/t the ld huse
12.cntrast n．对比；对照 vt.对比；对照(教材P8)Wrds t shw cmparisn and/r cntrast表示比较和/或对比的词in cntrast＝n the cntrary 与此相反；比较起来by cntrast 相比之下；与之相比in/by cntrast with/t 与……形成对比；与……相比cntrast with 与……形成对比cntrast A and/with B把A与B相比
❶When yu lk at their new system, urs seems very ld－fashined by cntrast.看一看他们的新系统，我们的系统就显得非常陈旧了。❷The situatin when we arrived was in marked cntrast t the news reprts.我们到达时的局势与新闻报道的截然不同。❸The pem cntrasts yuth and age.这首诗对比了青春与老年。
即学即练　单句语法填空/完成句子①Mst peple wrk because it's unavidable. ______ cntrast, there are sme peple wh actually enjy wrk.②It is interesting t cntrast the British legal system ________ the American ne.③There is________bvius cntrast between the cultures f East and West.④冰冷的白雪和明媚的蓝天交相辉映。The snw was icy and white, ______________ the brilliant blue sky.
cntrasting with
13．identify vt.确认；认出；找到　identity n．特征；身份(教材P8)Underline the relative clauses that the writer uses t identify the fllwing.在作者用来表示下列内容的关系从句下面划线。identify sb. with... 把某人视为……identify sth. with sth. 认为某事物等同于某事物identify sb./sth. as 认出，识别，表明……的身份refuse t identify neself 拒不透露身份identify the prblem areas 找出问题所在identify a link between diet and cancer 发现饮食与癌症之间的关联
用法联想：identity card/identificatin card身份证(缩写为ID card)ne's real/true identity某人的真实身份 Wuld yu please shw yur identity card/idenificatin card/ID card t me？请出示你的身份证件好吗？ 
即学即练　完成句子①不要认为财富就等于幸福。Dn't identify wealth ________ happiness.②他们不能欣赏音乐，这把他们与其他人分开。其他人很难理解他们的处境。Their inability t enjy music sets them apart frm thers. It can be difficult fr ther peple t identify ________ their cnditin.③如果你在工作中感到责任的压力，你应该退一步，识别那些更重要和不那么重要的任务。If yu feel stressed by respnsibilities at wrk, yu shuld take a step back and ________ thse f greater and less imprtance.
►第二版块|重要短语 1.tell right frm wrng分辨是非(教材P7)It is said that it's a mirrr that can tell right frm wrng!据说这是一面可以分辨是非的明镜！tell A frm B 把A和B区别开tell the differences between A and B 分辨A和B的不同tell black frm white 分辨黑白❶Child as he is, he can tell right frm wrng.尽管他是个孩子，却能够分辨是非。❷Speaking f teachers, I can't frget my parents, wh taught me the imprtance f wrk ethic and hw t tell right frm wrng.说到老师，我不能忘记我的父母，他们教会我职业道德的重要性和如何区分对错。
词汇拓展：(1)tell/knw A and B apart分辨A和B/看出A和B之间的区别(2)take sth. apart拆开某物(3)take sb./sth. apart严厉批评某人或某事(4)keep neself apart frm sb.与某人保持距离/不与某人混在一起
即学即练　单句语法填空①Can yu tell the difference ________ the tw pictures?②He is n lnger a child. He can tell right ________ wrng.③________ (tell) right ________ wrng is nt a simple matter fr such a little child.
2.take turns轮流(教材P7)Take turns t play the different rles.轮流表演不同的角色。take turns t d sth. 轮流做某事by turns 交流It's ne's turn t d sth. 轮到某人做某事❶Let's take turns at it.让咱们轮流来干吧。❷They tk turns t watch at his bedside.他们轮流守护在他的床边。❸It's yur turn t sweep the flr.轮到你扫地了。
归纳拓展：take turns t d sth.＝take turns at sth.＝d sth. by turns轮流做某事in turn＝ne after anther依次；相应地make a right turn at the secnd light＝turn right at the secnd light在第二个红绿灯处向右拐
即学即练　单句语法填空/完成句子①We tk turns ________ (drive) the car.＝We drve the car by ________ (turn)．②Tday it is ____________ (yu) turn t be n duty.③He spke t each f guests ____________ (依次)．④They raised the prices, and ____________ (相应地), their prfits increased.
►第三版块|典型句式1.It is said that...据说……(it是形式主语，that从句是真正主语)(教材P7)It is said that it's a mirrr that can tell right frm wrng!据说这是一面可以分辨是非的镜子！It is reprted that... 据报道……It is pinted ut that... 有人指出……It is thught that... 有人认为……It is believed that... 人们相信……It is claimed that... 据称……It is annunced that... 据宣布……It is well－knwn that... 众所周知……It is generally accepted that... 人们普遍认为……
❶It is reprted that the mayr will visit ur schl next week.→The mayr is reprted t visit ur schl next week.据报道，市长下周要来参观我们学校。❷It is said that a car accident happened last night.→A car accident is said t have happened last night.据说昨晚发生了一起车祸。
学法点拨：It is said/reprted that...＝Sb./Sth. is said./reprted t d/have dne...(动词不定式有时态、语态的变化)如：(1)It is said that he is writing a new nvel nw.＝He is said t be writing a new nvel nw.据说他正在写一部新小说。(2)It is said that he had written a new nvel.→He is said t have written a new nvel. 据说他已写完了一部新小说。
即学即练　单句语法填空/完成句子/句型转换①________ is ften said that the jy f travelling is nt in arriving at yur destinatin but in the jurney itself.②It is reprted________a space statin will be built n the mn in years t cme.③It________________(annunce) that the sprts meet will be held next Tuesday.④人们普遍认为良好的教育对年轻人有益。_____________________ a gd educatin is beneficial t yung peple.⑤It is said that the Chinese peple started t use paper mney earlier than Westerners.→The Chinese peple _________________ t use paper mney earlier than Westerners.
is annunced
It is generally accepted that
are said t have started
2．since＋过去的时间点/一般过去时的从句(教材P8)Nearly 500,000 high－quality digital phtgraphs have been prduced since the internatinal prject started in 1994.自1994年这项国际项目开始以来，将近50万张高质量的数码照片被制成。❶He has wrked hard since he was prmted.自从他升职以来，他一直努力工作。❷It has been ten years since they last climbed Munt Tai.自从他们上一次爬泰山已经10年了。
since为完成时的标志，常用于以下结构：ever since自……以来since＋过去的时间点since＋一段时间＋agsince＋从句(一般过去式)It is/has been＋一段时间＋since＋从句(一般过去时) 
即学即练　单句语法填空/完成句子①The expert ___________ (struggle) t find a slutin t the case since then.②It is almst five years since we ________ (see) each ther last time.③His wife died three years ag and he ____________________ (自那以后就一个人生活)．④He _______________________ (一直过着有压力的生活)since he tk up this jb. 
has struggled
has lived alne since then
has been living a stressful life
·基础知识自测·Ⅰ.单词拼写1．The archaelgist ________ (确认)that these caves culd date back t the Tang Dynasty.2．We can't ________ (原谅) anyne fr destrying cultural relics.3．These caves are f gd ________ (质量) and remain there frever thrughut human histry.4．In his ________ (看法)，cultural relics must be well preserved.5．On a sheet f paper, he drew the ________ (图像)f a dragn.
6．He ften ________ (下载)sme applicatins and dcuments frm websites.7．My frmer histry teacher is a __________ (专业的) archaelgist.8．Using ________ (数码的) technlgy, he clsely bserved the entrance, exit and rf f the Great Pyramid.9．Thrughut the ________ (过程)，she stared at the mirrr.10．He was sent verseas t further study the lcal ________ (传统) and custms there.
Ⅱ.单句语法填空1．Temples and ther cultural sites were mved t a place where they were safe________ the water.2．The free app _________ I have dwnladed desn't wrk well.3．Scientists attempted t rescue the temple because they wanted t preserve it________ the next generatin.4．He ften qutes this famus _______(say) that histry is like a mirrr.5．Scientists attempt t prmte culture by________(use) digital images.
6．I met an ld friend f mine at the entrance ________ the railway statin.7．If we dn't prtect thse traditins, there may cme a time ________ they disappear.8．Did yu find________ easy r difficult t talk abut traditin?9．The archaelgist went verseas t ________ (far) study the lcal traditins and custms.10．Accrding t varius ________ (clue) and after making cmparisns, he identified the fact.
Ⅲ.短语填空in my pinin， in cmparisn with， by cntrast， all ver the wrld， ， at the entrance t， nt als...， be cnsidered as， be familiar with， cme up with1．Cultural heritage includes____________temples, palaces and ther cultural relics, ____________ traditins, custms and knwledge.2．I ________________digital technlgy and I'll share my knwledge with yu.3．I did nt _________him _________ his damage t the cultural relics.4．I encurage my students by asking them t ________________ their wn ideas and make prpsals.
am familiar with
cme up with
5．Red Square in Mscw ________________a place fr parades, cncerts, and even a wrld cultural heritage site.6．We met a prfessinal archaelgist ________________ the Great Pyramid.7．The tallest buildings in Lndn are small ________________ thse f New Yrk.8．She almst failed the exam, but her sister, _____________， did very well.9．________________ , digital technlgy is very imprtant fr ur wrk.10．The archaelgist visited a number f famus histric sites______________.
is cnsidered as
at the entrance t
in cmparisn with
In my pinin
all ver the wrld
·学科素养提升·Ⅳ.短文语法填空Mary likes Chinese cultural relics very much. She spends mst f her spare time 1.________ (g) everywhere in search f rare things designed r made by famus artists, such as 2.________ (value) wden furniture, fancy hats and vases f all styles, 3.________ have survived fr a lng time. One day she visited her friend, Jhn, in whse huse she was 4.________ (amaze) t find sme amazing evidence that reflected the perid when China was at war with Japan. There were sme paintings 5.________ (draw) by a well－knwn painter, in ne f which the lcal Chinese peple were fighting hard with the invaders, sme bmbs explded and many Chinese peple 6._________ (kill).
were killed