daily life 日常生活007 passage 1i go to the barbershop（我去理發(fā)店）010 passage 2we went to the grocery store（我們?nèi)ルs貨店）013 passage 3april fool’s day（愚人節(jié)）016 passage 4what can i do? （我該怎么辦？）019 passage 5counting sheep（數(shù)綿羊）natural science 自然科學(xué)023 passage 6hibernation（冬眠）026 passage 7whales（鯨魚(yú)）029 passage 8a seed in your stomach（一粒在你的胃里的種子）031 passage 9sea babies（幼年的海底生物）034 passage 10tadpoles and frogs（蝌蚪和青蛙）math & science 數(shù)學(xué)與科學(xué)038 passage 11what time is it?（現(xiàn)在是幾點(diǎn)鐘？）041 passage 12chasing a rainbow（追逐彩虹）044 passage 13the four seasons（四季）047 passage 14what body part is that?（那是什么身體部位？）050 passage 15solar system（太陽(yáng)系）history & culture 歷史與文化054 passage 16why are school buses allpainted yellow?（為什么校車都漆成黃色的呢？）057 passage 17the history of toothbrush（牙刷的歷史）060 passage 18presidents of the united states（美國(guó)的總統(tǒng)）063 passage 19america’s national bird（美國(guó)的國(guó)鳥(niǎo)）……