Unit 4 Period Ⅰ Welcome to the unit & Reading—Comprehending（课件）-【优化探究】2022-2023学年新教材高中英语选择性必修第三册同步导学案（牛津译林版2020）

Period Ⅰ　Welcome to the unit & Reading—Comprehending 返回导航 下页 上页 译林英语选择性必修第三册 必备知识 自主学习 课时作业 巩固提升 返回导航 下页 上页 译林英语选择性必修第三册 Part 1　课文预读 [原文呈现] Heritage① in danger② Welcome, everybody. It's wonderful to be here. Before we begin, I want to ask you：have you ever been awed③ by natural wonders? Have you ever been fascinated by④human civilization⑤？ If so, you might already understand why UNESCO is fighting to preserve⑥ sites of cultural and natural importance to mankind.I have the belief that 返回导航 下页 上页 译林英语选择性必修第三册 some of you have heard about⑦ UNESCO heritage sites or maybe even visited one！There are currently around 1,100 sites in more than 160 countries worldwide.Unfortunately, they face a variety of⑧ dangers and many of them are in urgent⑨ need of⑩protection. Let's look at some specific issues. 返回导航 下页 上页 译林英语选择性必修第三册 本句为复合句。why在句中引导宾语从句。 本句为复合句。that在句中引导同位语从句，作belief的同位语。 返回导航 下页 上页 译林英语选择性必修第三册 Heritage sites are at risk⑪ from natural forces. The long­term natural forces, such as wind, water and temperature, can gradually wear down⑫ heritage sites.For instance⑬， the Great Pyramid⑭ of Giza is now several metres shorter than it was originally.Natural disasters, the sudden and powerful natural forces，can lead to⑮ the destruction⑯ of heritage sites: in 2003，a terrible earthquake shook south­eastern Iran and ruined⑰ large parts of the city of Bam, an incredible⑱ UNESCO cultural heritage site. 本句为复合句。than在句中引导比较状语从句。 返回导航 下页 上页 译林英语选择性必修第三册 Another big danger is human activities. Wars can cause a great deal of⑲ damage to both cultural and natural heritage sites. Sometimes, amazing ancient clay⑳ sculptures 21 and buildings are accidentally destroyed by missile 22 attacks during periods of violence 23. In some conflict 24 areas where civil 25 wars often break out, fighters have even destroyed heritage sites on purpose 26. 本句为复合句。where引导定语从句，修饰先行词areas。 返回导航 下页 上页 译林英语选择性必修第三册 Meanwhile, World Heritage status 27 may give rise to a series of 28 problems. One of the