sandstorm-in-Asia-Introduction

IntroductionLet’senjoythebeautyofnature!Whatdoyouthinkofthesepicturesandthevideo?Aretheystillsobeautifulnow?Canyougivesomeexamplesofchangesinenvironment?Whathappenedfromthispicture？Whatnaturaldisasteritis?Itisasandstorm.Itisveryfrightening.这张照片是3月17日由NASA的OrbView-2卫星拍摄的真彩色照片。在照片上，沙尘已经越过黄海，到达了日本以东的太平洋上空。事实上，这次10年以来中国北方最大的沙尘暴不仅仅影响了日本，据美国国家海洋和大气局（NOAA）报告，这次的沙尘暴已经跨越太平洋，于27日到达了美国西海岸！ABCDNorthAmericaCentralAfricaAustraliaCentralAsiaThedaybeforeyesterdayYesterdayHowdoesthesandstormsbegin?TodayDiscussionDiscussthesequestions.1.Whatshouldyoudoinasandstormtoprotectyourself?2.Ifyouareinadesert,whatisthefirstsignofasandstorm?3.Haveyoueverbeeninasandstorm?Ifyes,describeittoyourpartner.Let’sdotheactivity!Lookatthepictureandanswerthequestions.•Whatishappening?•Whatisthecyclistwearingandwhy?•Whatdoyouthinkhappenstotrafficinthissituation?Why?•Whatdoyouthinkexpertsadvisepeopletodointhissituation?Readthepassagequicklyandfindthegeneralideasofeachparagraph.•Sandstormsarestrong,drywindsthatcarrysand.•Desertificationisaprocessthathappenswhenlandbecomesdesertbecauseofclimatechangesandbecausepeoplecutdowntreesanddigupgrass.Para3Para2•Amasscampaignhasbeenstartedtohelpsolveit.•Topreventitcomingnearer,thegovernmentisplantingtrees.•TheChineseCentralWeatherstationcanforecastasandstormsomeweeksbeforeitarrivesBeijing,butthestrengthofthestormsometimessurprisespeople.Para1Para6Para5ReadthepassagecarefullyanddecideifthesentencesareTrueorFalse.1.Agovernmentcampaignhasbeenstartedtohelpsolvethesandstormproblem.2.Thewindsinasandstormcansometimespreventyoufromseeingthesun.3.NorthwestChinaisthesandstormcentreinCentralAsia.4.TheChineseCentralWeatherStationcanonlyforecastasandstormsomemonthsbeforeitarrives.5.Itisfrighteningtobecyclinginasandstorm.6.ThegovernmentisplantingtreestotheeastofBeijingtopreventthedesertcomingnearer.masspartofweekswestThankyou!