Unit 4Language StructureMain Teaching Points:1.Modal auxiliaries may/might used to express “possibility”eg. It may/might be fine tomorrow.2.Modal auxiliaries should/ ought to expressing “obligation”eg. He should/ought to get up early and take some exercise every day.3.Modal auxiliaries would rather expressing “preference”eg. I would rather do some reading.4.Modal auxiliaries must and can't used to express “strong probability”and “impossibility”respectivelyeg. He must be in the gym. // He can't be there.Useful Expressionsgo-mountain climbing be in good healthtake notice of be weak in / be poor insuffer from sth. live transmission of sports eventsDialogue A Trip to ChinaA. Listening to the recordingB. Questions on specific detailsC. Broad questions:1. Describe the changes in China's rural areas, particularly in the coastal areas.2. What are the ways in which Chinese farmers get up-to-date information?3. Why college education important for modern farmers?4. Do you believe in “You get what you put in”?D. Language Points1. Fancy meeting you here.=It's a surprise to meet you here.2. world-renowned/ world-famous 世界闻名的eg. 1) Shanghai is a world-renowned cosmopolitan metropolis.上海是国际知名的大都会。
2）Tonight a solo concert will be given by a world-renowned singer in Shanghai gymnasium. 今晚一位世界著名的歌手在上海体育馆举办个人演唱会。
3. on and off/ off and on : not happening continuously or regularly断断续续地eg. 1) John has worked with Johnny on and of for 10 years.断断续续共事了十年。
2）It rained on and off all day. 雨断断续续下了一天。
4. legacy: 遗产；遗留之物，后果eg. 1) Part of her legacy from her parents is a golden pocket watch.父母留给她的遗产中有一块黄金怀表。
2）The masterpiece of Leonardo da vinci are invaluable cultural legacy of the Renaissance.达.芬奇的的杰作是文艺复兴时期宝贵的文化遗产。
5. capture: v. 抓住，捕获，夺取；（用画面、音乐，文字等）捕捉，n. 捕获，捕捉；俘虏，战利品描绘；eg. 1) The police finally captured the escaped convict after a two-weeksearch.经过两周的搜捕，警方终于抓获了逃犯。
2）Last night he met a charming woman at the party who captured his heart.昨晚他在聚会上遇到了一位让他心动的魅力女士。
3）These photographs capture the aftermath of the atomic bombings of Hiroshima and Nagasaki.这些照片捕捉了广岛和长崎原子弹爆炸后的惨状。
4）He hasn't eaten anything since his capture.自从被俘后他没有吃过任何东西。
6. inexhaustible: 用不尽的，无穷尽的eg. 1) The man seems to have an inexhaustible supply of energy.2) To be frank, my patience is not inexhaustible.重大问题显露的一小部分；冰山一角: the tip of the iceberg7.thetip of cases of the water pollution are only the eg. 1) The reported。
报道的水污染事件只是冰山一角iceberg.Only the tip of the iceberg pokes up above the surface of the sea. ）2只有冰山的一角突出海平面。
）Ernest. Hemingway,1899-1961美国著名作家欧内斯特.海明威（认为作者只应描写“冰山”。
他以“冰山”为喻，提出过著名的“冰山原则”露出水面的部分，水下的部分应该通过本文的提示让读者去想象补充。
海明威的写作风格以惜墨如金且轻描淡写而著称，对美国文学以及20世纪文学的发展有极为深远的影响。
8. authentic : true or geniue真正的，真实的；that can be trusted, reliable可靠的，可信的eg. 1) The authentic manuscript of the celebrated writer is exhibited in themuseum.这位著名作家的手稿陈列在博物馆里。
2）The police have obtained all the authentic details of the murder.警方已经取得了有关那起谋杀案的所有可靠细节。
9. unparalleled a. bigger, better or worse than anything else无与伦比的，无双的（中性词）eg. 1) He has made an achievement unparalleled in sporting history.他取得的成就在体育界无人能及。
2）This county is confronted with a financial crisis upparalleled sincethe 1930s. 这个国家面临着20世纪30年代以来空前的经融危机。
．10. take sth./sb. for granted (that) : 认为…是理所当然的eg. 1) I just took it for granted that he'd always be around.我还想当然的以为他总能随叫随到呢。
2）Her husband was always there, and she just took him for granted.她丈夫随时都在身边，她认为他理应如此。
11. prevailing a. 普遍的，流行的，盛行的prevail v.eg. 1) The prevailing view seems to be that they will find her guity.一般人的看法似乎认为她会被判有罪。
the prevailing economic conditions普遍的经济状况the attitudes towards science prevailing at the time 时下对科学的流行看法2) Justice will prevail over tyranny. 正义必将战胜暴虐。
12. breathtaking: a. very exciting or impressive (usually in a pleasant way); very surprising激动人心的，惊人的eg. 1) The scene was one of the breathtaking beauty.美妙的景色宁人叹为观止。
2）He spoke with breathtaking arrogance.他说话时的傲慢态度令人乍舌。
a breathtaking view of the mountains 群山的壮丽景色a breathtakingly expensive diamond 昂贵的惊人的钻石E. Retelling1. Ted tells Bob about his trip to China.2. Ted introduces many world-famous places he has visited.3. Ted describes Xi'an's terracotta warriors and horses.4. Ted describes Chinese food and cooking styles, the spicy-hot Sichuan dishes in particular.Reading 1 Human NeedsA.Listening to the recordingB.Questions on specific details1.Why is food a basic need?2.How can we avoid malnutrition？3.Why did primitive people eat only the food that could be grown near their homes?4.What is the difference between needs and wants?(Needs are something necessary to life, and wants are things that we'd like to have.)5.How do we differ from primitive men in our food wants? three things that a modern house contains but an ancient palace did not？C.The structure of the passagePart 1 (para.1-para.3) What is a basic human need?-food.Part 2 (para.4) clothing.Part 3 (para.5) shelter.nguage Points1.do without: do sth.without sth. or sb.没有某人或某物也可以做某事eg. 1) Man cannot do without water.2) We ran out of surgar so you'll have to do without.所以你得克服一下了。