发布时间 : 星期三 文章（完整word版）英语专业泛读第四册Unit1ScienceintheSahara更新完毕开始阅读791dff02b107e87101f69e3143323968011cf4d2
Unit 1 Science in the Sahara：Man of the Desert
Lead-in:
I. Discussion:
1. Have you ever been to a desert? What is a desert like?
Full of sand, dry, waterless, harsh geographical environment; not available to live in. romote, far from city life.
Dangerous. Easy for people to lose sense of directions. Peng Jiamu was lost in 1980s in Luobupo in Xinjiang.
2. Have you everyread Sanmao’s book: Stories in the Sahara Desert? What do you know about the desert? Largest one in the world. Its location? In Africa. Its map:
Which countries are in the Sahara Desert?
撒哈拉沙漠是世界上最大的沙漠.横贯非洲大陆北部,东西长达5600公里,南北宽约1600公里,面积约960万平方公里,约占非洲总面积32%.分布在西撒哈拉、毛里塔尼亚、马里、阿尔及利亚、尼日尔、突尼斯、利比亚、乍得、埃及、苏丹等十多个国家和地区.阿尔及利亚 Algeria
3. Are you interested in exploration in a desert or adventure? Why? Exciting; dangerous; challenge yourself. Enlarge your vision. Our text is about an explorer in the eastern Sahara.
? 1. Have you ever been to a desert? What is a desert like? ? 2. Have you read Sanmao’s book: Sahara Desert?
? 3 What do you know about it? About its location; countries located there; climate; geography;animals; plants; people’s life, etc.
? 4. Are you interested in exploration in a desert or adventure? Why? ? 5. Can you predict the main contents of the text?
? 6. Suppose you lived in the desert, how would you plan to arrange your life there?
II. Do word pretest before going to text. Check the meaning of new words: III. The text:
Previewing questions：
Pa 1 scanning: Stefan Kropelin’s first research trip to the eastern Sahara did not start well. Why?
Pa 2 scanning: What is Stefan Kropelin?
Most devoted Sahara Explorers now. now a geologist and climate researcher at the Uni. Of Cologne in Germany.
What hardships had he experienced?
Pa 3 skimming: He had achieved a lot in his field work. What are they? 1) he has made influencial discoveries;
2) he has recorded the Sahara’s cultural hsitory and has tried to preserve its heritage by persuading to protect scientific and cultural sites.
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Pa.4
Skimming: How did he start his interest in his sense of adventure to the Sahara Dissert? Pa 5
Scan: What is the meaning of “Inhospitable” in the first sentence of pa.5? Harsh weather and bad geographical condition. How about his attitude to his work?
Circumspect, hard-driving leader, good at knowledge of geomorphology, archaelogy, human psychology and motomomor mechanics. I. Pa.1-5 Summary:
Introduction to Kropelins and his research: his first research trip to the eastern Sahara. His job now; his descoveries; why he started his adventure; his hard working environment and his careful attitude to work.
Pa.6
1. What research has he done? Reveal how the Sahara transformed from a savannah more than 5000 years ago to the desert it is today. 2. What was researchers’ idea about the Sahara in the past? Pa.7
Will the pa. About his doubt to others’ research? Pa 8
What is the conclusion of his research？
II. Pa. 6-8 Summary: about His research: he doubts about others’ research and he gets his own research result. Pa 9
Kropelin and deMenocal‘s debate. His ideas were accepted. Pa 10 翻译句：他对约阿湖的研究结果给他在这个地区的长期发现画上了一个圆满的句号。
Summary：His research results from Lake Yoa What about his research results from Lake Yoa?
III. pa. 9-10 His debate with others and his satisfying discoveries. IV. Pa.11-12 Difficulties he met.
V. Pa. 13-14 Other works he has done and his plans in the Sahara.
Pa.11 scanning: How have his trips placed him in difficult situations? Pa.12 skimming: why nature is the enemy?
Pa.13 skimming: What other works has he done? Pa.14 What does he plan to do in the Sahara? Why does he do such things? Love for the land. I. Pa.1-5 Summary: Introduction to Kropelins and his research:
Summary: His job now; his descoveries; why he started his adventure; his hard
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working environment and his careful attitude to work.
Pa. 1 scanning: How about Stefan Kropelin’s first research trip to the eastern Sahara? Why? Main idea: his first research trip to the eastern Sahara. Remote: adj. 1）far distant in place or time偏远的，偏僻的.
2）冷漠的;冷淡的;与人疏远的;清高的sb does not want to be friendly or closely involved with other people.
Eg She looked so beautiful, and at the same time so remote. 她相貌如此美丽，同时又如此清高不群。 Plateau： 1. N-COUNT 高原 A plateau is a large area of high and fairly flat land.
Eg A broad valley opened up leading to a high, flat plateau of cultivated land. 一条宽阔的山谷展现在眼前，通往一处平整的开垦地高原。 Sediment 英 [?sed?m?nt] n. [地]沉淀物；沉积物，沉渣 复数：sediments 词条标签：TOEFL IELTS GRE
1. N沉渣;沉淀物 Sediment is solid material that settles at the bottom of a liquid, especially earth and pieces of rock that have been carried along and then left somewhere by water, ice, or wind.
Eg Many organisms that die in the sea are soon buried by sediment. 海洋里死亡的许多生物会很快被沉淀物掩埋。
Deposition 英 [?dep??z??n] n. 沉积（物） Canyon：1. N a long, narrow valley with very steep sides. (陡峭狭长的)峡谷，溪谷 Eg ...the Grand Canyon. (美国的)大峡谷
Embark：英 [?m?bɑ:k] vi. 上飞机，上船；着手，从事 vt. 使…上船或飞机；使从事，使着手；投资于 词条标签：考研 IELTS 1. V start doing something difficult 着手；开始做
Eg He's embarking on a new career as a writer... 他即将开始新的职业生涯——当一名作家。
The government embarked on a programme of radical economic reform. 政府开始实施一项彻底的经济改革计划。
Oasis：N可数名词 a small area in a desert where water and plants are found. （沙漠中的）绿洲
2. N-COUNT a pleasant place or situation as an oasis when it is surrounded by unpleasant ones. （恶劣环境中的）宜人之地，乐土；（不愉快情形下的）开心之时，乐事
Eg The immaculately tended gardens are an oasis in the midst of Cairo's urban sprawl. 在开罗不断扩张的都市版图内，这些被悉心照料的花园成了一片世外桃源。 Pa 2 scanning: What is Stefan Kropelin?
Most devoted Sahara Explorers now. now a geologist and climate researcher at the Uni. Of Cologne in Germany.
What hardships had he experienced?
Ordeal：. N-COUNT (常单数) If you describe an experience or situation as an ordeal,
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you think it is difficult and unpleasant. 煎熬；磨难；折磨
Eg the painful ordeal of the last eight months... 过去8个月的痛苦煎熬 She described her agonising ordeal. 她描述了自己备受折磨的苦难经历。
Expedition：N-COUNT an organized journey that is made for a particular purpose such as exploration. 远征;探险
Eg Byrd's 1928 expedition to Antarctica. 伯德1928年前往南极洲的探险
Bout：1. N-COUNT a bout of an illness or of an unpleasant feeling, you have it for a short period. （疾病或不愉快情绪的）发作 A bout of
Eg He was recovering from a severe bout of flu... 他患了严重的流感，尚未痊愈。 Eg I was suffering with a bout of nerves. 我感到一阵紧张。
2. N-COUNT 可数名词（不愉快之事大量发生的）一阵，一小段时间
A bout of something that is unpleasant is a short time during which it occurs a great deal. 【搭配模式】：usu N of n
Eg The latest bout of violence has claimed twenty four lives... 最近发生的一起暴力事件造成24人死亡。
A half-hour daily walk can be more beneficial than one hard bout of exercise a week. 每天散步半小时会比一周剧烈运动一次对身体更有益。
3. N-COUNT拳击比赛；摔跤比赛 A bout is a boxing or wrestling match. Eg This will be his eighth title bout in 19 months. 这将是他19个月里的第8次卫冕赛。
4. （当about的第一个音节不发音时，有些作家以’bout或bout替代about） Some writers use 'bout or bout to represent about when the first syllable is not pronounced.
How 'bout some coffee?... 来点儿咖啡吗？
Eg I just felt the need to write bout it, I guess. 我想我就是觉得有必要对此写点儿什么。回合；较量；局；一场比赛
Roam：V wander or travel around it without having a particular purpose. 漫步;漫游;游荡;闲逛
synonym： roll，wander，swan，stray，tramp，cast，ramble，rove，range，drift，vagabond gad meander
EG Barefoot children roamed the streets... 光脚丫的孩子们在街上游荡。
They're roaming around the country shooting at anything that moves... 他们在乡下到处转悠，看到活动的东西就开枪。
Farmers were encouraged to keep their livestock in pens rather than letting them roam freely. 鼓励农民们把家畜关进栏圈，而不是让它们到处乱跑。
1. move about aimlessly or without any destination, often in search of food or employment;
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