【课堂新坐标（教师用书）高中英语 Unit 8 Period Ⅲ Extreme Sports Marco Polo课件 北师大版必修3.pptVIP

●教学目标 1．熟记学案中所列出的词汇及用法。 2．通过学案中所给出的重点词汇和句式的学习，让学生能够正确理解和使用这些词汇和句式，并能够运用这些句式造句。 3．通过对语法的教学让学生能够理解并能够运用这些语法知识，能够熟练的掌握限定性定语从句和非限定性定语从句的语法功能。 4. 听懂课文中所给出的听力材料。 ●教学地位 限定性定语从句和非限定性定语从句的语法内容让学生感觉比较杂乱，语法规则较多，易混易错的地方层出不穷。让学生正确理解和掌握语法知识是本课时学习的关键。 ●新课导入建议 Answer these questions to prepare yourself. Use the key words below to help you. explore(a forest, a desert, another planet)，go (sailing, skiing, diving，parachuting)，go on (a wildlife tour, a hiking trip, a round-the-world trip) 3．Which activity mentioned above is your familiar one? 4．Can you imagine or describe the feeling when you take part in this activity? Show some words to help students : boring; brave; cheap; cheerful; comfortable; dangerous; dirty; exciting; expensive; safe; serous; tired; tiring; well－organized; wonderful 1．similarity n．相似性；类似性 Snowboarding has similarities with surfing.(教材P24)单板滑雪和冲浪运动有相似性。 There are many similarities between the two TV series.那两部电视剧有许多相似之处。 ①similar adj.相似的；类似的 similarly adv.相似地；类似地 ②A be similar to B　A与B相似 A be the same as B　A与B相同 A be different from B　A与B不同 ③similarity between...……之间的相似处 similarity in在某方面相似之处 The two boys look very similar. 这两个男孩看上去很相似。 My problems are very similar to yours. 我的问题和你的差不多。 The husband and wife were similarly successful in their chosen careers.夫妇俩在各自选择的事业上都很成功。 2．upside down颠倒地；倒置地 And，if thats not enough，you then try to walk upside down on the ice！(教材P24) 并且，如果那还不够的话，你可以试试在冰上倒着走！ The painting was hung upside down.那幅画挂倒了。 She turned the discussion upside down by asking a foolish question.她问了个愚蠢的问题把讨论搞乱了。 ①turn sth.upside down 把……翻得乱七八糟，使……凌乱不堪 ②turn sb.s life/world upside down 给某人的生活造成大的变化/混乱 ③up and down上上下下；来回 3．risk vt.冒……的危险 What makes people risk their lives to do them？(教材P24)是什么让人们冒着生命危险去从事这些活动呢？ He risked his life to save his dog. 他冒着生命危险去救他的狗。 He was prepared to risk everything in order to achieve his ambition.为实现他的雄心壮志他甘愿冒任何危险。 risk doing sth.冒险做某事 take/run a risk(risks)(to do sth.)冒险(做某事) at risk处境危险；遭受危险 at the risk of doing sth.冒着做某事的危险