unit 1 try our mattress试试我们的床垫........................................2unit 2 poor spoonbills可怜的黑面琵鹭........................................5unit 3 youth hostels青年旅馆..............................................9unit 4 a meeting schedule儿童健康会议议程表...................................13unit 5 left-handers左撇子...............................................17unit 6 believe it or not信不信由你...........................................22unit 7 who’s the best?哪位太太是*棒的?...................................25unit 8 brush your teeth不刷牙就会满嘴烂牙...................................29unit 9 genghis khan搜寻成吉思汗的遗体...................................33unit 10 the land of mexico墨西哥耕地面面观.....................................38unit 11 life in outer space外太空有生命吗?.....................................42unit 12 j. k. rowling《哈利•波特》的作者小传.............................47unit 13 a trip to mt. ali阿里山快乐行.........................................52unit 14 a clearance sale清仓大甩卖...........................................57unit 15 nepal尼泊尔...............................................60unit 16 first aid急救须知.............................................64unit 17 be nice to wowen善待女人.............................................68unit 18 say “thank you”感谢的艺术...........................................71unit 19 try our food客人,过来尝尝俺的菜嘛!.............................75unit 20 invention of airplanes飞机的发明...........................................77unit 21 stop learning by rote别再死背书了.........................................81unit 22 moods & weather天气影响心情.........................................85unit 23 jack’s sandwiches杰克三明治...........................................89unit 24 spiders’ eating habits蜘蛛吃什么?怎么吃?.................................91unit 25 dreams梦的解析.............................................95unit 26 the little mermaid小美人鱼.............................................99unit 27 the amazon亚马逊河的稀奇动物..................................103unit 28 helen keller不屈不挠的海伦•凯勒................................107unit 29 hollywoodmovies好莱坞电影商业挂帅..................................111unit 30 resources in the ocean海洋资源............................................115unit 31 alfred nobel博爱的诺贝尔........................................119unit 32 women’s day三八妇女节..........................................123unit 33 dolphins永远一副笑脸的海豚..................................127unit 34 white as a sheet吓得脸色发白........................................131unit 35 elephants大象惊人的记忆力....................................135unit 36 self-confidence自信心..............................................139unit 37 pioneer women美国拓荒时期的妇女..................................143unit 38 overpopulation人口过剩日趋严重....................................147unit 39 levis strauss李维斯牛仔裤的由来..................................151unit 40 scorpions蝎子没那么可怕......................................155unit 41 in case of a fire防火须知............................................159unit 42 please don’t come希望别撞到地球......................................163unit 43 stars in the sky天上星星何其多......................................167unit 44 never tell lies自尊与谎言..........................................171unit 45 bat conservation蝙蝠的保护..........................................175unit 46 respect pedestrians请尊重行人..........................................180unit 47 natural disasters天灾应对之道........................................184unit 48 weather reports天气预报............................................188unit 49 life’s full of surprises人生充满惊奇........................................192unit 50 coffee & heart attacks咖啡与心脏病........................................195unit 51 sri lanka斯里兰卡............................................199unit 52 a polite man做个有礼貌的人......................................202unit 53 practice makes perfect熟能生巧............................................205unit 54 books读书之乐............................................208unit 55 failure失败算什么!........................................212unit 56 is music a noise?音乐是噪音吗?......................................216unit 57 enlarging our vocabulary记单词好处多多......................................220unit 58 stay fit for a test考前应注意健康......................................224unit 59 a high-tech world世界科技日新月异....................................228unit 60 ecology生态学..............................................232unit 61 we need society我们不能没有社会....................................235unit 62 louis braille盲人点字法发明人....................................239unit 63 cameras in the early days早期的相机..........................................243unit 64 inflation通货膨胀............................................247unit 65 fingerprints指纹................................................251unit 66 moods & weather心情随天气变化......................................254unit 67 body language肢体语言............................................258unit 68 working mothers在职妈妈............................................261unit 69 independence day美国国庆节..........................................265unit 70 bones & smoking抽烟与骨折..........................................269unit 71 we’re chameleons我们与变色龙没两样..................................273unit 72 surrogacy借腹生子............................................276unit 73 credit cards信用卡..............................................279unit 74 which way to go?大城市游览须知......................................282unit 75 the drawing roomdrawing room (客厅)一词的由来...................... 285unit 76 success成功................................................288unit 77 the earth你对地球知多少?....................................291unit 78 just do our best凡事尽力而为........................................294unit 79 dreams mirror life梦反映现实生活......................................297unit 80 abraham lincoln亚伯拉罕•林肯......................................301unit 81 anasazi pueblos阿纳萨齐的石屋城....................................305unit 82 the olympics奥运的由来..........................................310unit 83 holes on the moon月球上坑洞的由来....................................313unit 84 the panama canal巴拿马运河..........................................317unit 85 the sun我们不能没有太阳....................................320unit 86 an expedition一次有趣的探险......................................324unit 87 wood用不完的木材........................................328unit 88 stars are moving恒星是会动的........................................332unit 89 pablo picasso毕加索..............................................336unit 90 thank you, doggie!谢谢你,狗狗!......................................340unit 91 a great cartoonist创造史努比的漫画家..................................344unit 92 it runs in the family一人生病,全家遭殃..................................348unit 93 avoid catching a cold避免感冒............................................352unit 94 superman“超人”是谁创造的?................................355unit 95 flight safety乘机安全须知........................................359unit 96 figures大人喜欢数据........................................363unit 97 aids艾滋病..............................................367unit 98 shoes观其鞋而知其人......................................371unit 99 mars火星................................................375unit 100 it’s a library, son!小子,这是图书馆!..................................379