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Part One: Understanding the Text1.1 Background InformationThe third unit of t...

Part One: Understanding the Text1.1 Background InformationThe third unit of the third book of New Perspective College English, “The Surprising Purpose of Travel”, is a passage about the author’s travel experience in Africa. It mainly discusses how travel broadens people’s horizons and changes their lives.As a world traveler, the writer has visited many places in Africa, such as Tanzania, Uganda, Zimbabwe and Botswana, and has written several travelogues about Africa. In this passage, he mainly introduces his travel experience in Botswana.1.2 Main Ideas and StructureThe passage mainly discusses the surprising purpose of travel: travel not only broadens people’s horizons, but also changes their lives. It also presents the author’s travel experience in Botswana, which includes his visit to the local market and his encounter with a local villager named “Pansy”.The passage is divided into two paragraphs: the first paragraph contains five subparagraphs introducing different purposes of travel that are familiar to many people, and then surprisedly combining with one another. The second paragraph discusses one of the writer's previous travels, where he found an unexpected purpose of travel - changed lives. It mainly focuses on the author's experience in Botswana and tells readers how he changed his mind through travel.Part Two: Learning Language Features2.1 Vocabulary and Expressions“on the other hand”=however (Howeverit is also true that...)“in addition”=besides (In additionit is a very important aspect.)“for example”=for instance (For examplemost...)“withthe exception of”=except for (With the exception of...)“in other words”=that is to say (In other words)“in conclusion”=in short (In conclusion)“moreover”=besides (Moreover)“in fact”=as a matter of fact (In fact)“on the contrary”=on the other hand (On the contrary)“as a result”=because (As a result)“to tell you the truth”=truthfully speaking (To tell you the truth)“in my opinion”=personally speaking (In my opinion) etcunexpectednot expected; not anticipated; unexpected; unforeseeable; unpredictable; unexpected; unpredictable; unforeseeable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable; unpredictable etc