daily life 日常生活007 passage 1buy new jeans（買新牛仔褲）010 passage 2we are lucky（我們真幸運）013 passage 3test stress（考試壓力）016 passage 4a card from your neighbor（來自你的鄰居的賀卡）019 passage 5making money（賺錢）natural science 自然科學024 passage 6training honeybees（訓練蜜蜂）027 passage 7bending sticks: the naturalsculptures（彎曲的樹枝：天然雕塑）030 passage 8hurricanes（颶風）033 passage 9burned forests（燒毀的森林）036 passage 10mosquito（蚊子）math & science 數學與科學041 passage 11states of matter（物質的狀態）045 passage 12the dwarf planet: pluto（矮行星——冥王星）048 passage 13fractions（分數）051 passage 14reading without seeing（看不見的閱讀）054 passage 15order of operations（運算順序）history & culture 歷史與文化059 passage 16pizza and pizza party（比薩和比薩派對）062 passage 17holidays of the seasons（各個季節里的節日）065 passage 18the origins of the europeanand american restaurant（歐美餐館的起源）068 passage 19susan b. anthony（蘇珊?布勞內爾?安東尼）071 passage 20the history of ice cream（冰激凌的歷史）short stories 短篇故事075 passage 21please hurry up（請快一點吧）077 passage 22the perfect hiding spot（**藏身處）080 passage 23steve and ryan learned alesson（史蒂夫和瑞安吸取教訓）084 passage 24how can i thank you?（我該怎么感謝你呢？）088 passage 25stone soup（石頭湯）others 其他類別……