捷进英语B2U2教学课件.pptx

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1、2JourneysofDiscoveryREADINGFORLEARNING2READINGFORDOING3GUIDEDWRITING4AUDIO/VIDEOLAB5WARM-UP1WRAP-UP6READINGFORLEARNINGVocabularyFocusGrammarFocusBeyondtheTextText:AmazingJourneysNewWordsPhrasesandExpressions#migrationsurvivalcalendar#migratedirectiontemperaturewhereasfatd

2、estinationlandmarkfindone’sway(back)toProperNames#turtle#salmon#crabgiant#magnetHowmuchdoyouknowaboutanimalmigration?Watchthefollowingvideoclip,andthinkaboutthefollowingquestions.1.Whatanimalsarementionedinthevideo?2.Whatanimalmakesthelongestmigration?READINGFORLEARNINGAm

3、azingJourneysTask1Task2Task3Task4Usingtheintroductionparagraph(有效利用开头段落)文章的开头段落一般具有文章概览的特点，它是对文章内容的整体介绍，通常包含背景知识、相关统计数据、作者的主要观点等。所以，在写论文或查阅资料时，我们通常可以通过快速浏览文章的开头段落来决定是否继续阅读或购买这篇资料。Task1Readthefirstparagraphandtickthethingsyouthinkthetextwillcover.Readthetextandcheckyourpre

4、dictions.READINGFORLEARNING1Howanimalsmigrate.2Whyanimalsmigrate.3Ourunderstandingofanimalmigration.4Thebiggestmigrationofanimals.5Howhumanstravelaround.√√√ANearlyallanimalmigrationshappenforonereasononly—survival.Forsomeanimals,itistofindfood.However,forothers,itistohave

5、theiryounginaplaceawayfromotherdangerousanimals.Animalsdonothaveacalendarontheirwalltotellthemwhentomigrate.Sohowdotheyknowwhentoleave?Howdotheyfindtheirwaybacktotheplacetheywerebornmanyyearsago?Orhowdotheyknowwhichdirectiontogoona12,000-milejourney?Scientistsarestartingt

6、ounderstandmoreofthesecretsofanimalmigration.AmazingJourneys译文奇妙的旅途几乎所有的动物迁徙都只是出于同一个理由——生存。有些动物迁移是为了寻找食物，另一些则是为了远离危险，繁衍后代。动物们没有一个挂在墙上的日历告诉他们何时迁徙，那么它们是如何知道何时该启程了呢？它们又是如何找回到多年前出生的地方呢？又或者，它们是如何知道在这12,000英里的旅途中该向哪个方向前行呢？科学家正开始了解更多关于动物迁徙的奥秘。What'sthereasonforanimalmigration?BK

7、nowingwhentomigratecomesfromvariousthings.Forsomeanimals,itishowlongthedayis.Somejudgethetimebythetemperatureoutside,whereasothersknowwhentotravelbytheleveloffatintheirbody.Animalsknowhowmuchfattheyneed.Whentheirfatlevelsfall,manywillmigrate.However,iftheywaittoolong,they

8、willnothaveenoughfattomakethejourney.译文很多事物可以告诉动物何时迁徙：有些依据白天的长短，有些靠外界的温度变化判断时间，而另一些则通过他们体内脂肪的水平决