更正在括号处标明，总共十处错误，保证准确率！ Sleep is part of your daily activity cycle. But how (many改成much) you sleep and when and how deeply you sleep (is改成are) determined by many factors. Generally speaking, the (young改成younger) you are, the more you sleep and (去掉that) the more deeply you sleep. Newborn babies (sleeping改成sleep) about 16 hours each day. They sleep as much during (加入the) day as at night. During the first year of life, the (number改成amount/quantity) of sleep a baby needs decreases by two hours or (more改成so). One (recently改成recent) study showed that by six months of age, 80% of the babies are sleeping through the night and taking short naps in the daytime. By age two, children sleep about 12 hours a day, (included改成including) about 90 minutes of daytime naps. By adolescence and early adulthood, the amount of daily sleep has dropped to about 8 hours. 解释：1. how many修饰可数名词，不能表示程度，how much可以表示程度；2. 主语为多个从句并列，为复数概念，所以主句谓语动词必须用复数形式are；3. 固定句型：the + 比较级..., the + 比较级...，意思是“越...，...就越...”。所以用young的比较级younger；4. 非从句，也就无须引导词that；5. 单独的现在分词sleeping不能做句子谓语，sleep可以做谓语；6. 固定短语：during the day/daytime = in the day/daytime 在白天7. sleep为不可数名词，但是number只能修饰可数名词，所以改用amout或quantity；8. 固定短语：or so，意思是“上下，左右”，类似于about，但是其位置放在“数词 + 名词”的后面；9. 形容词recent做定语修饰名词study；而recently是副词，不能做定语而是做时间状语；10. 固定短语：including + 宾语 = 宾语 + included，意思是“包括...在内”；如果对你有所帮助，请点击本页面中的“选为满意回答”按钮，谢谢！
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