
材料五航路開辟后,東方香料輸入歐洲的總量較中古之時猛增30倍,而胡椒、丁香等在印度購入和在英國賣出的差價亦高達10至29倍,其他貨物的獲利同樣驚人。這一時期,新的商品不斷涌現(xiàn),特別值得注意的是美洲的特產(chǎn)——玉米、馬鈴薯、煙草、可可等——被傳播到歐亞大陸。這時,世界性的對外貿(mào)易主要通過大西洋,地中海與意大利皆告衰落,而沿大洋的英、荷等漸居中心。到17世紀時,英國的倫敦與荷蘭的阿姆斯特丹成為世界貿(mào)易中心。問題4:材料五表明,新航路開辟后對世界貿(mào)易產(chǎn)生了哪些重大影響?答案4:結束了世界相對孤立狀態(tài);各地文明開始會合交流,日益連成一個整體;歐洲商人直接同世界各地建立商業(yè)聯(lián)系;促進不同國家和貿(mào)易的發(fā)展,促進世界市場雛形開始出現(xiàn)。

(2)世界需要中國:中國入世后,為全球提供一個誘人的大市場。WTO亟須中國帶來新的生機和平衡。世界需要中國。中國作為世界上最大的發(fā)展中國家,入世后,其巨大的需求潛力將轉化為現(xiàn)實的購買力,為全球提供一個誘人的大市場。目前,與世貿(mào)組織成員間的貿(mào)易額占我國外貿(mào)總額的90%,來華落戶的跨國公司多來自世貿(mào)組織成員。世貿(mào)組織幾任總干事先后在不同場合表達過相同的意愿:WTO亟須中國帶來新的生機和平衡。2、影響:(1)對世界:促進了世界經(jīng)濟的發(fā)展,有利于建立完善的世界貿(mào)易體系。(2)對中國:對中國經(jīng)濟發(fā)展有利有弊,但利大于弊。中國加入世貿(mào)組織,是機遇也是挑戰(zhàn)。有利:加入世界貿(mào)易組織,促進了我國經(jīng)濟的發(fā)展,進一步完善了社會主義市場經(jīng)濟體制。

(2)根據(jù)材料二與所學知識,從經(jīng)濟、政治、思想文化三個方面,分析歐洲近代科技迅速發(fā)展的原因。答:資本主義工商業(yè)的成長刺激了對技術的需求,為近代科技的發(fā)展提供了工具和手段;資產(chǎn)階級革命為資本主義發(fā)展、科技進步開辟了道路;人文主義和理性精神解放了思想,推動近代科技迅速發(fā)展。(如答出其它原因,言之有理,可酌情加分,但不得超過該問總分)(3)根據(jù)材料二三與所學知識,分析清代(鴉片戰(zhàn)爭前)中國科技發(fā)展停滯的原因。答:君主專制維系腐朽制度;重農(nóng)抑商、閉關政策阻礙資本主義萌芽發(fā)展;自然經(jīng)濟不能提供近代科技發(fā)展的物質(zhì)基礎;文化專制政策(或崇尚理學、八股取士、文字獄等)禁錮思想,摧殘人才,阻礙科技發(fā)展。(如答出其它原因,言之有理,可酌情加分,但不得超過該問總分。)(4)簡述從中西方科技發(fā)展變化的歷史中得到的啟示。答:評分說明:圍繞生產(chǎn)力發(fā)展,政治經(jīng)濟變革、思想解放與科技發(fā)展的關系等任一角度回答,言之有理,均可酌情賦分

畫中的諸多圖像反映了畫家對于傳統(tǒng)繪畫因素的吸收。那個懷抱死去孩子的母親圖像,似乎是源自哀悼基督的圣母像傳統(tǒng);手持油燈的女人,使人聯(lián)想起自由女神像的造型;那個高舉雙手仰天驚呼的形象,與戈雅畫中愛國者就義的身姿不無相似之處;而那個張臂倒地的士兵形象,則似乎與意大利文藝復興早期某些戰(zhàn)爭畫中的形象,有著姻親關系。由此可以看出,畢加索不僅是一位富于叛逆精神的大膽創(chuàng)新者,同時也是一位尊崇和精通傳統(tǒng)的藝術家。教師須強調(diào):現(xiàn)代主義美術是現(xiàn)代美術流派的總稱,現(xiàn)代美術流派眾多,多姿多彩,但它們也表現(xiàn)出許多共同的特征。在技法上,它們大都反對傳統(tǒng)的寫實主義,追求新奇,空間結構錯亂,色彩配置隨意,點線紊亂,缺乏透視可謂它們共有的特點。在創(chuàng)作主旨上,它們都主張強調(diào)自我,表現(xiàn)個人情感和內(nèi)心世界??梢哉f,現(xiàn)代美術藝術再現(xiàn)了20世紀西方世界的精神狀況。

蘇聯(lián)文學的沿革,既反映了蘇聯(lián)社會的偉大思想性變革,又反映了蘇聯(lián)文壇活躍與混亂并存的局面,特別是其所具有強烈的意識形態(tài)色彩是蘇聯(lián)社會深層次變化的風向標。(2)20世紀的亞、非、拉美文學20世紀亞、非、拉美文學的繁榮伴隨著民族民主運動的高漲,其主流都體現(xiàn)了反對殖民壓迫、反對社會不公的愛國主義精神。出現(xiàn)了許多頗有影響的作家和作品。泰戈爾是印度近現(xiàn)代文學的光輝代表,為印度現(xiàn)代民族主義奠定了基礎。其代表作《戈拉》塑造了愛國的印度民族主義知識分子形象。泰戈爾是首位獲諾貝爾文學獎的東方作家。魯迅是中國文學革命的巨匠,他的《吶喊》集,昭示著中國新文學時代的到來。哥倫比亞作家馬爾克斯的《百年孤獨》,描繪加勒比海沿岸小城百年孤獨的原因及打破這種狀態(tài)的途徑。

2.表示現(xiàn)階段正在進行的被動動作(該動作在說話的瞬間未必正在進行)。Many interesting experiments are being carried out these days.(說話時,并不一定正在進行)3.表示一種經(jīng)常性的被動行為,常和always,constantly 等表示頻度的副詞連用,這種用法常常帶有贊揚或厭惡的感情色彩。He is always being praised by the leader.4.表示按計劃或安排主語將要承受謂語動詞所表示的動作(僅限于少數(shù)及物動詞)。A party is being held tonight.Step 4 Special cases1.像take care of, look after, talk about, think of等動詞與介詞構成的短語用于現(xiàn)在進行時的被動語態(tài)時, 其中的介詞不可省略。The ways to stop illegally hunting are being talked about. 2.可與部分情態(tài)動詞連用,表示對正在發(fā)生的事情的推測。She may be being punished by her mother.3.有時可表示按計劃或安排將要進行的一個被動動作。A celebration is being held this weekend for his success.4.某些表示“狀態(tài)、心理活動、存在”等的動詞,如have,want,need,love,一般不用現(xiàn)在進行時的被動語態(tài),而常用一般現(xiàn)在時的被動語態(tài)。With the population increasing,more land is needed.5.“be+under/in+n.”可表示現(xiàn)在進行時的被動意義。My computer is under repair.=My computer is being repaired.

This lesson is about wildlife protection. The listening and speaking is about “How to protect endangered wildlife ?” Faced with the facts and numbers of wildlife loss, people begin to detect the reasons, then people such as the celebrities (Prince William and Yao Ming) are calling on to protect them. So students are guided to enhance the awareness of protecting wildlife and try to take part in some volunteer activities of protecting wildlife.1. Predict the content by using visuals. 2. Learn to use the sentences such as “I’m concerned about.... But now they are in danger. I want to know the reasons/why./ What can we do to protect them ?3. Learn from the stars like Prince William and Yao Ming and enhance the awareness of protecting wildlife.4. Guide students to try to put forward the solutions to the problems of wildlife protection and then discuss them with partners and present the results of discussion.5. Master the pronunciation of stressed syllables.1. Learn from the stars like Prince William and Yao Ming and enhance the awareness of protecting wildlife.2. Guide students to try to put forward the solutions to the problems of wildlife protection and then discuss them with partners and present the results of discussion.3. Learn to use the sentences such as “I’m concerned about.... But now they are in danger. I want to know the reasons/why./ What can we do to protect them ?4. Master the pronunciation of stressed syllables.Part A Listening and Speaking--- How to save endangered wildlifeStep 1 Lead in1. Point at the pictures on P14 and ask Q1: What message do these posters share?

The theme of this unit is human and nature, focusing on the theme of wildlife protection. Nature is a complex ecosystem, in which there are delicate balance between animals and plants. Because of the role of the food chain, the extinction of one species will produce influence, causing a series of chain reaction. Large scale extinction of species will have a serious and even irreversible impact on the ecosystem, resulting in immeasurable losses. Therefore, it is of great significance to protect wild species. To protect wild species is to protect human beings themselves. The motto of this unit is "when the buying stops, the killing can too,” which is a public service advertising slogan to protect wildlife. It tells people that every rhinoceros horn, every fur, every bowl of shark fin soup, every Ivory product, and every tiger bone product, etc. consumed by human beings, are innocent wild animals slaughtered behind them. The mission of wild aid is to ban illegal trade in endangered wildlife and mitigate climate change. It aims to educate the public to reduce the consumption demand for endangered wildlife products through public publicity and improve the awareness of environmental protection.1. Improve the awareness of wildlife protection by acquiring the knowledge of wildlife protection.2. Focus on environmental protection and protection of all lives.3. Analysis of the living environment of wild animals with appropriate thinking mode.4. Skillfully use the vocabulary and grammar knowledge of this unit to cultivate self-study ability according to the unit content5. Develop cooperative learning ability through discussion and other ways1. Enable the Ss to talk about the current situation of wild animals.2. Guide the Ss to summarize the main idea of each paragraph as well as the main idea of the text.

This teaching period mainly deals with grammar “The Present Perfect Passive Voice.” To begin with, teachers should lead students to revise what they have learned about the Present Perfect Passive Voice. And then, teachers move on to stress more special cases concerning this grammar。This period carries considerable significance to the cultivation of students’ writing competence and lays a solid foundation for the basic appreciation of language beauty. The teacher is expected to enable students to master this period thoroughly and consolidate the knowledge by doing some exercises. 1. Guide students to review the basic usages of the Present Perfect Passive Voice2. Lead students to learn to use some special cases concerning the Present Perfect Passive Voice flexibly.2. Enable students to use the basic phrases structures flexibly.3. Strengthen students’ great interest in grammar learning.1. Help students to appreciate the function of the Present Perfect Passive Voice in a sentence2. Instruct students to write essays using the proper the Present Perfect Passive Voice.觀察下列句子特點,總結共同點。1.(教材P28)Much has been written about the wonders of the World Wide Web.2.(教材P28)But the Internet has done much more for people than simply make life more convenient.3.(教材P28)Many people have been helped by the club.4.(教材P28)She no longer feels lonely, and her company has become quite successful.5.(教材P32)Today I thought I’d blog about a question that has been asked many times—how do you stay safe online and avoid bad experiences on the Internet?

From the pictures in the text and the title--- choose the best app, we can know that this part is about how to save money by using apps.Step 2 While-listening1. Laura and Xiao Bo are talking about apps. Listen to their conversation and find out what apps they want.Xiao Bo is looking for a(n) exercise app to help him get in shape.Laura would like an app for getting rich and another that will make her grades better.2. Listen again. Are the sentences true T or false F?1). Both of Xiao Bo's apps keep track of the steps he takes._____2). Xiao Bo's second app can help him make a fitness plan._____3). Laura needs an app that will help her get discounts.______4). Laura needs an app that will add money to her bank account._______F T F T3. Listen once more and tick the sentence you hear. Underline the words used to express predictions, guesses, and beliefs.Predictions, Guesses, and Beliefs________It might help me walk more.________My guess is that it wouldn't work.________I imagine this app would help me get fit faster________I suppose that would be good.________I guess you could save a little with this app.________I suppose there would be some problems, too.________I believe this app could help me get thinner.

Paragraph 3. Jan decided to start an IT club to teach old people how to use computers and the Internet. Paragraph 4. Jan has started taking online classes to learn more about how to use the Internet to make society better. Paragraph 5. Jan’s life has been greatly improved by the Internet. Step 5: Critical thinking:(1)How do you arrange your time spent on study and the Internet? Is it reasonable? I usually surf the Internet using my mobile phone for only an hour after class, and it is reasonable for me.(2)What are your online activities? Are they safe? I chat with my friends, read news and play games. I never give away my private information so I think they are safe.Step 4: summary Much has been written about the wonders of the World Wide Web. There are countless articles (1)______(tell) us how the Internet has made our lives more convenient. But the Internet has done a lot (2)_____(much) for people than simply make life more convenient. People’s lives (3) _________________(change) by online communities and social networks so far. Take Jan for example, who developed a serious illness that made her (4)_____(stick) at home with only her computer to keep (5)___(she) company. She joined an online group (6)______ she could share problems, support and advice with others. She considered the ability to remove the distance between people as one of the greatest (7)_______(benefit). She was so inspired (8)____ she started an IT club in which many people have been helped. She has started to learn more about how to use the Internet to make society better. Her next goal is to start a charity website to raise money (9)___ children in poor countries. Jan’s life has been (10)______(great) improved by the Internet. Step 5 Homework:Review what we have learned and find out the key language points in the text.

This unit is about history and traditions. From the opening page, we can know that this unit will introduce the history and traditions around the world. As Marcus Garvey says “A people without the knowledge of their past history, origin and culture is like a tree without roots”, it is important for students to realize the importance and value of knowing the history and traditions and their further meanings. And this part ( listening and speaking ) is divided into two parts: Part A---share views on historic sites, Part B ---talk about a visit to a historic tourist destination. By talking with a foreigner, the speakers introduce the historic attractions and their cultures. Part A is that William, a British student, who was going to visit the Confucius Temple and a Chinese student, Xiao Kong, who was going to the Confucius Temple to meet with the members of the research group, went together and exchanged their views on the Confucius Temple, Confucius, Confucius' descendants and Confucius' educational thoughts. Part B is a conversation between Xiao Yan, a youth hostel receptionist and Paul, a backpacker about the feelings and experience after visiting the Chinese famous tourist attraction Pingyao.1. Guide students to understand the content of listening texts in terms of the whole and key details; 2. Cultivate students' ability to guess the meaning of words in listening; discuss with their peers how to talk about historic spots and great person.3. Instruct students to use functional sentences of showing one’s excitement, surprise and disappointment.1. Guide students to understand the content of listening texts in terms of the whole and key details; 2. Cultivate students' ability to discuss with their peers the related topics.3. Enable students to use the functional items of showing one’s excitement, surprise and disappointment.

⑦identity theft 身份盜竊⑧chat room 聊天室⑨draft your blog post 起草博客帖子⑩post embarrassing photos 張貼尷尬照片 【話題句式】 1. How do you stay safe online and avoid bad experiences on the Internet? 你如何在網(wǎng)上保持安全, 避免在網(wǎng)上的不良經(jīng)歷? 2. I’m not an expert, but many years as a blogger have taught me a thing or two. 我不是專家, 但作為一個博主, 我已經(jīng)學了好幾年了。 3. If you see or read something that makes you feel uncomfortable, leave the site immediately. 如果你看到或讀到一些讓你覺得不舒服的東西, 立即離開這個網(wǎng)站。4. Don’t give out your address or phone number. 別告訴別人你的地址或電話號碼。 5. Identity theft is a common and serious problem. 身份盜竊是一個常見而嚴重的問題。6. Being online is no excuse for being rude, and you don’t want to become a target for a troll or cyberbully. 上網(wǎng)并不是無禮的借口, 你也不想成為發(fā)挑釁帖子的人或網(wǎng)絡惡霸的目標。 7. Trolls often use several false names so that they can stay on a site. 發(fā)挑釁帖子的人經(jīng)常使用幾個假名, 這樣他們就可以留在一個網(wǎng)站上。8. However, the more polite you are, the less likely it is you will be attacked. 然而, 你越有禮貌, 你被攻擊的可能性就越小。

Step 5 While reading---Task 3Read the text again and answer the following questions.Q1: How many countries does the UK consist of ?4 Q2: What are the four countries of the United Kingdom?England, Wales, Scotland and Northern Ireland Q3: Which two were the first to be joined together ?England and WalesQ4: What are the two chief advantages of studying the history of a country ?The first one is to help you understand more about the country and its traditions.The second one is to make visiting it more enjoyable.Q5: What’s the author’s attitude towards studying the history ?Supportive/positiveStep 6 Post reading---Retell the textThe United Kingdom, Great Britain, Britain, England—many people are confused by (1)_____ these different names mean. In the 16th century, the nearby country of Wales (2) __________(join) to the Kingdom of England. In the 19 th century, the Kingdom of Ireland was added to create the United Kingdom of Great Britain and Ireland. Finally, the southern part of Ireland (3) ______ (break) away from the UK, which resulted in the full name we have today. However, most people just use the (4)_________(shorten) name: the UK. The four countries (5)__________ belong to the United Kingdom work together in some areas. There were four sets of invaders and the last group were the Normans. They had castles (6)_________(build) all around England and made changes (7)__________ the legal system. Studying the history of the country will make your visit much more (8)_________(enjoy). The capital city London is (9)___ ancient port city that has a history (10)______(date) back to Roman times. 1. what 2.was joined 3.broke 4.shortened 5.that 6. built 7.to 8.enjoyable 9.an 10.dating Step 6 Homework

這個地區(qū)有著深厚的傳統(tǒng)。既學既練:為了讓更多的外國游客了解中國文化,欣賞中國美麗的自然風光,感受中國發(fā)生的巨大變化,某外文雜志社將出版一本英語小冊子來介紹中國的旅游景點。該雜志社邀請你為該小冊子寫一篇英語短文來介紹杭州,內(nèi)容包括:1.杭州的位置(中國東南部)、面積(16 000多平方公里)及歷史(2 200多年)等;2.杭州的旅游特色(自然風景、傳統(tǒng)文化、特色小吃等);3.希望更多的游客來杭州參觀。注意:1.詞數(shù)80左右;2.可適當增加細節(jié),以使行文連貫。Located in the southeast of China, Hangzhou is a beautiful city.Dating back more than 2,200 years, Hangzhou covers an area of more than 16,000 square kilometers.In Hangzhou, you can visit the West Lake, whose scenery is fascinating.In addition, you can’t miss its cultural relics and historical sites, from which you will learn more about excellent Chinese traditional culture and traditions.In Hangzhou, the special snacks are famous and visitors from different parts of the world think highly of them.As a tourist attraction, Hangzhou attracts a large number of visitors from home and abroad every year.Once you come to China, Hangzhou is a scenic spot you can’t miss.

4. When he got absorbed in his world of music, he felt as if he could “see” the beauty of the world around him, like he had in his previous life.P·P as adverbial: _________________________________________________________________.Function: _______________________________________________________________________.Step 5 Solid Complete the passage with the words in brackets in their correct forms.Well known as a successful band, the Impact members show quite a few striking qualities. They never ever give up. When _____________(question) by the media, they are not _____________(discourage) and practise even harder. They are improving themselves by attending several master training class. They are united. _____________(fill with) team spirit, they act as a whole, always aiming for glory. Step 6 Difference and similarity from -ingObserve the following examples.1. He went out, shutting the door behind him.=He went out, ________________________________________________________.2. Not knowing what to do, he went to his parents for help.=__________________________________________, he went to his parents for help.Similarity: _______________________________________________________________________________________________________________________________________________________.Difference : _______________________________________________________________________________________________________________________________________________________.Step Practice1. ________ in a hurry, this article was not so good. 因為寫得匆忙, 這篇文章不是很好。2. ________ carefully, he found something he hadn’t known before. 他仔細讀書時, 發(fā)現(xiàn)了一些從前不知道的東西。3. ________ why he did it, the monitor said it was his duty. 當被問及他為什么要這么做時, 班長說這是他的職責

Step1:自主探究。1.(教材P52)Born(bear) in the USA on 2 January 1970, Whitacre began studying music at the University of Nevada in 1988.2.(教材P52) Moved(move) by this music, he said, “It was like seeing color for the first time.”3.(教材P56)I was very afraid and I felt so alone and discouraged(discourage).4.(教材P58)Encouraged(encourage) by this first performance and the positive reaction of the audience, I have continued to play the piano and enjoy it more every day.Step2:語法要點精析。用法1:過去分詞作表語1).過去分詞可放在連系動詞be, get, feel, remain, seem, look, become等之后作表語,表示主語所處的狀態(tài)Tom was astonished to see a snake moving across the floor.湯姆很驚訝地看到一條蛇正爬過地板。Finally the baby felt tired of playing with those toys.終于嬰兒厭倦了玩那些玩具。注意:1).過去分詞作表語時與被動語態(tài)的區(qū)別過去分詞作表語時,強調(diào)主語所處的狀態(tài);而動詞的被動語態(tài)表示主語是動作的承受者,強調(diào)動作。The library is now closed.(狀態(tài))圖書館現(xiàn)在關閉了。The cup was broken by my little sister yesterday.(動作)昨天我妹妹把杯子打碎了。2)感覺類及物動詞的現(xiàn)在分詞與過去分詞作表語的區(qū)別過去分詞作表語多表示人自身的感受或事物自身的狀態(tài),常譯作“感到……的”;現(xiàn)在分詞多表示事物具有的特性,常譯作“令人……的”。

1. Get basic information about Eric; read deeply to understand the history and development of the virtual choir.2. Understand what the function of the virtual choir is and how to make a virtual choir.3. Understand the meaning of some languages in the context of the text through question guidance, such as “Many people do not have close friends or contacts who have the same interest in music.” and so on.Step 1 Leading-in1. Answer the following questions.Q1:Do you know the Apps like Tik Tok and Quick Hand?Q2: Do you want to make a Tik Tok video or a Quick Hand video?2. Play a Tik Tok video Step 2: Understanding the title Q1:What does the title mean ?Q2: Is the article a narration or exposition? Why? Q3: Can you change the title ? If you can, what is the title?Step 3: Scanning the whole text and getting the basic information1. Answer the following questions.Q1:Who came up with the idea for a virtual choir?Q2: Where did Eric studied the musical composition?Q3: What is his song?2. Find the main idea of each paragraph3. Deal with some new words.Step 4: Reading carefully to get detailed informationPara 1 How to make a virtual choir1. PreparationA. tools: a virtual camera; an Internet connectionB. hero/heroin: friends or some individuals who have the same interests2. Process

The price is the same as(the price was)before the war.價格與戰(zhàn)前相同。(4)定語從句中的“關系代詞+助動詞be”可以省略。The ticket(that/which was)booked by his sister has been sent to him.他妹妹訂的那張票已送到了他那里。Step 5 PracticeActivity 3(1) Guide students to complete the four activities in the Using Structures part of exercise book, in which activities 1 and 2 focus on ellipsis in dialogue answers, activity 3 focus on signs and headlines, two typical situations where ellipsis is used, and activity 4 focus on ellipsis in diary, an informal style.(2) Combine the examples in the above activities, ask students to summarize the omitted situations in groups, and make their own summary into a poster, and post it on the class wall after class to share with the class.(This step should give full play to the subjectivity of students, and teachers should encourage students to conclude different ellipsis phenomena according to their own understanding, they can conclude according to the different parts omitted in the sentence.)Step 6 Homework1. Understand and master the usages of ellipsis;2. Finish the other exercises in Using structures of Workbook.1、通過本節(jié)內(nèi)容學習,學生是否理解和掌握省略的用法;2、通過本節(jié)內(nèi)容學習,學生能否根據(jù)上下文語境或情景恢復句子中省略的成分,體會使用省略的效果;3、通過本節(jié)內(nèi)容學習,學生能否獨立完成練習冊和導學案中的相關練習。

(2)Consolidate key vocabulary.Ask the students to complete the exercises of activity 6 by themselves. Then ask them to check the answers with their partners.(The first language:Damage of the 1906 San Francisco earthquake and fire.A second language: Yunnan - one of the most diverse provinces in China).Step 5 Language points1. The teacher asks the students to read the text carefully, find out the more words and long and difficult sentences in the text and draw lines, understand the use of vocabulary, and analyze the structure of long and difficult sentences.2. The teacher explains and summarizes the usage of core vocabulary and asks the students to take notes.3. The teacher analyzes and explains the long and difficult sentences that the students don't understand, so that the students can understand them better.Step 6 Homework1. Read the text again, in-depth understanding of the text;2. Master the use of core vocabulary and understand the long and difficult sentences.3. Complete relevant exercises in the guide plan.1、通過本節(jié)內(nèi)容學習,學生是否理解和掌握閱讀文本中的新詞匯的意義與用法;2、通過本節(jié)內(nèi)容學習,學生能否結合文本特點了解文章的結構和作者的寫作邏輯;3、通過本節(jié)內(nèi)容學習,學生能否了解舊金山的城市風貌、文化特色,以及加利福尼亞州的歷史,體會多元文化對美國的影響。
PPT全稱是PowerPoint,LFPPT為你提供免費PPT模板下載資源。讓你10秒輕松搞定幻燈片制作,打造?顏值的豐富演示文稿素材模版合集。