全國(guó)公共英語(yǔ)PETS-2精品閱讀157

Animals sleep in many different ways. Most prefer to sleep lying down. Some, like the giraffe, sleep standing up. A few water birds sleep standing on just one leg. Bats adopt the strangest way of all animals. They sleep upside down.
    動(dòng)物睡覺(jué)的方式各異，大多數(shù)是躺著睡。有些動(dòng)物像長(zhǎng)頸鹿，是站著睡覺(jué)。有些水鳥(niǎo)一只腳站著睡。蝙蝠采用動(dòng)物中最奇異的方式睡覺(jué)，它們是倒掛著睡。