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Ⅰ.基础词汇1．________adj.内地的；内陆的2．________adj.大量的；大规模的3．________n.战役；活动4．________vt.预报；预告5．________n.进程；过程6．________n.公民；市民7．________n.面罩inlandmasscampaignforecastprocesscitizenmaskfore/for前缀“前，预先”foresee预见foretell预言forecast预报forward向前foreknow预知forehead前额foreground前景Ⅱ.拓展词汇1．____________adj.吓人的；可怕的→____________adj.害怕的→________vt.使害怕→frightn．害怕2．________________n．(土地的)沙漠化→________n．沙漠3．________n．沙尘；灰尘→________adj.满是灰尘的4．________n．力量；力气→____________vt.加强→________adj.强壮的5．________vi.骑自行车→________n．自行车→________n．骑自行车的人frighteningfrightenedfrightendesertificationdesertdustdustystrengthstrengthenstrongcyclebicyclecyclist“害怕”adj.小结terrified恐惧的frightened害怕的scared恐惧的afraid害怕的fear害怕Ⅲ.短语速记1．________________突然遭遇(风暴等)2．________砍倒3．________挖出4．____________醒来面对；意识到；认识到5．________________________阻止某人做某事6．________________________因为/由于……的结果7．________________在这种情况下8．________________一个接一个地be/getcaughtincutdowndigupwakeuptopreventsb.fromdoingsth.asaresultof/becauseof...inthissituationoneafteranotherⅣ.句型熟背1．Theyareoften____thick____youcannotseethesun,andthewindissometimesstrongenoughtomovesanddunes.沙尘暴常常很浓密，以至于遮住了太阳，有时风力大的足以移动沙丘。2．SandstormsinChina____________________inrecentyearsasaresultof“desertification”．“沙漠化”导致的沙尘暴近几年在中国似乎有所增加。sothatappeartohaveincreased3．...trafficmovesveryslowlybecausethethickdust____________________.……车辆开得很慢，因为浓浓的尘埃降低了能见度。4．________________________,thegovernmentisplantingtrees.为阻止沙漠的逼近，政府正在植树。makesitdifficulttoseeTopreventitcomingnearer“v.＋up”型词组takeup占据，开始从事pickup开车接，捡起turnup出现giveup放弃cheerup振作精神holdup举起，耽搁lookup查找callup打电话，回忆Ⅰ.根据课文内容选择正确答案1．Whatisthebestdescriptionaboutasandstormaccordingtothepassage?A．ItisamajordisasterformanyAsiancountriesforcenturies.B．Itisastrongwindcarryingsand.C．Itisawaytocauselandtobecomedesert.D．Itisakindofnaturaldisasterthatcan'tbetreated.答案：B2．WhatisthemainreasonfortheincreaseofsandstormsinChinarecently?A．Tobeclosetomanydeserts.B．TheworseningoftheweatherinChina.C．Itisaresultofdesertification.D．Peoplecutdowntreesanddigupgrass.答案：C3．Whateffectsaresandstormsbringingtopeoplelivingincities?A．Thewholecityisusuallycoveredbythickandyellowdust.B．Trafficmovesveryslowly.C．Peoplecan'tbreathewellandthedustmakesthemill.D．Allabove.答案：D4．Whatisthebestwaytoavoidtheeffectsfromthesandstorm?A．Tolivefarawayfromdeserts.B．Tostayathomewhenasandstormhappens.C．Towearmaskifyouwanttogoout.D．Toplantmoretrees.答案：D5．Whensandstormshappen,whatwillyouwearifyougoout?A．Ahat.B．Acoat.C．Amask.D．Atie.答案：CⅡ.难句分析1．Sandstormsarestrong,drywindsthatcarrysand.[句式分析]该句是主从复合句。thatcarrysand是that引导的定语从句修饰winds，that在定语从句中作主语。[尝试翻译]沙尘暴是带有沙尘的强大而干燥的风。2．Theyareoftensothickthatyoucannotseethesun,andthewindissometimesstrongenoughtomovesanddunes.[句式分析]该句是and连接的并列句。第一个分句中使用了so...that...句型；第二个分句中使用了“adj.＋enough＋动词不定式”。[尝试翻译]沙尘暴通常很浓密以至于人们都看不见太阳，有时候风的强度大到可以掀动沙丘。3．ThefourmainplacesintheworldwheretherearesandstormsareCentralAsia,NorthAmerica,CentralAfricaandAustralia.[句式分析]该句是复合句。wheretherearesandstorms是where引导的定语从句修饰places。[尝试翻译]世界上四个主要的有沙尘暴的地方是：亚洲中部、北美、非洲中部和澳大利亚。4．ItwasthemostfrighteningandthemostdangeroussituationI'veeverbeenin.[句式分析]该句是复合句。I'veeverbeenin是省略了关系代词that的定语从句，修饰situation。[尝试翻译]那是我遭遇过的最可怕、最危险的境况。5．Thisisaprocessthathappenswhenlandbecomesdesertbecauseofclimatechangesandbecausepeoplecutdowntreesanddigupgrass.[句式分析]该句是个较为复杂的句子，它包含一个定语从句：thathappens，一个时间状语从句：whenlandbecomesdesert和两个原因状语：becauseofclimatechanges，becausepeoplecutdown...。[尝试翻译]这是发生在由于气候变化以及人们砍伐树木、开垦草地使得陆地变成沙漠时的过程。知识点详解——重点词汇、短语1．frighteningadj.吓人的；可怕的[语境领悟]*Itlastedfortenhoursandwasveryfrightening.它(沙尘暴)持续了十个小时，真是太可怕了。*Itisfrighteningthatpeoplelikehimhavegotdivorced.像他那样的人都离婚了，真是太可怕了！[归纳拓展](1)frightenvt.(使)惊恐frightensb.intodoingsth.吓唬某人做某事frightensb.outofdoingsth.使某人不敢做某事frightensb./sth.away将某人/某物吓跑(2)frightenedadj.感到恐惧的；害怕的befrightenedat/of害怕……；对……感到恐惧befrightenedtodosth.害怕去做某事*Itfrightensmehowquicklychildrengrowupthesedays.如今孩子们成长得这么快，真是让我感到惊恐。*Becauseofherlastterribleexperience,sheisfrightenedtogooutatnight.因为上次那个可怕的经历，她现在晚上不敢出门了。[名师点津]frightening意为“令人恐惧的；可怕的”，一般用于指事物。在句中作定语或表语；frightened意为“受惊的，害怕的”，一般用于指人，在句中作定语或表语。即学即练❶用frighten的适当形式填空①Thelittlegirlwas____________bythe____________film.②Theoldfishermantoldhiswifeina____________voiceaboutthe____________fish.③Atthatmomentcamea____________noise,leavingpeople____________.frightenedfrighteningfrightenedfrighteningfrighteningfrightened漫画助记Thesceneofthestormwasfrightening.风暴的场景非常可怕。2．cutdown砍倒；缩减；减少[语境领悟]*Desertsarealsocreatedbecausepeoplecutdowntreesanddigupgrass.因为人们砍伐树木，挖掘植被，沙漠面积又扩大了。*Yousmoketoomuch—youhavetocutdownforthegoodofyourhealth.你抽烟太多了，为了身体健康你得少抽点。*Thisfactory'sproductionhasbeencutdown.这家工厂的产量减少了。[归纳拓展]cutin插嘴，打断cutoff切断，阻断，隔绝cutout剪除，切掉，删除cutup切碎*Shealwayscutsinwhenotherpeoplearetalking.别人谈话时她总要插嘴。*Themotorwascutoffassoonassomethingseemedtobewrongwithit.一旦发现发动机似乎有点毛病，就立即把它关掉。即学即练❷用cut的相关短语完成句子①Expertsthinktheamountofhomeworkforthestudentsshouldbe________.Besides,teachersshouldencouragetheirstudentstomakegooduseoftheirsparetime.②Itisimpoliteto________whenotherpeoplearetalking.③Don'thesitate(犹豫)to________theusele