分析下句型individuals who average less than six hours of sleep have much higher rates of developing certain kinds of disease 分析下这个句型

分析下句型individuals who average less than six hours of sleep have much higher rates of developing certain kinds of disease 分析下这个句型
分析下句型
individuals who average less than six hours of sleep have much higher rates of developing certain kinds of disease 分析下这个句型

分析下句型individuals who average less than six hours of sleep have much higher rates of developing certain kinds of disease 分析下这个句型
主语:individuals
who average(动词) less than six hours of sleep定从修饰individuals .
谓动: have
宾语: much higher rates of developing certain kinds of disease .
句意: 平均少于六小时睡眠的人得某种疾病的几率高得多.

　本题关键是　average 做动词的用法：朗文现代双英词典的动词解释：1 [ linking verb ] to usually do something or usually happen a particular number of times, or to usually be a particular size or amount :
The water in the lake...

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　本题关键是　average 做动词的用法：朗文现代双英词典的动词解释：1 [ linking verb ] to usually do something or usually happen a particular number of times, or to usually be a particular size or amount :
The water in the lake is not particularly deep, averaging about 12 metres.
The airport averages about a thousand flights a month.
Inflation averaged just under 2.8% per year.
2 [ transitive ] to calculate the average of figures :
The rate of growth was averaged over a period of three years.
average out phrasal verb
1 if something averages out at a particular figure, it has that figure as an average over a period of time
average out at
Training costs for last year averaged out at £5,100 per trainee.
The government’s share of the cost was intended to average out at 25%.
2 average something ↔ out to calculate the average of something :
I averaged out the total increase at about 10%.

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主语是individuals ，谓语是have，宾语是much higher rates of developing certain kinds of disease，who average less than six hours of sleep 是定语，修饰individuals，整个句子的意思是睡眠时间少于6小时的人有更高的机率患某种病，即更有可能患某种病。