5．Youngsters who have no regular bedtime or who go to bed later than 21：00 have lower scores for reading and maths．Lack of sleep may influence how well the brain learns new information．
The findings on sleep patterns and brain power come from a UK study of more than 11，000 seven-year-olds．
Theygathered information on the children at the ages of three，five and seven to find out how well they were doing with their learning and whether that might be related to their sleeping habits．
Establishing （制定） a good bedtime routine early in childhood is important．Irregular bedtimes were most common at the age of three，when around one in five of the children went to bed at varying times．By the age of seven，more than half the children had a regular bedtime of between 19：30 and 20：30．
Children with irregular bedtimes tended to be less successful than their playmates in terms of test scores for reading，maths and spatial awareness（空間想象）．The influence was more obvious throughout early childhood in girls than in boys and appeared to be increasing．
The researchers said it was possible that irregular bedtimes were a reflection of chaotic （無秩序的） family settings and they had an influence on cognitive （認(rèn)知的） performance in children．The children with late and irregular bedtimes came from more socially disadvantaged backgrounds and were less likely to be read to each night and，generally，watched more TV．After controlling for such factors，the link between poorer mental performance and irregular bedtimes remained．
67．The text mainly deals with the relation between children'sD．
A．reading abilities and their sleeping habits
B．mental development and their sleeping habits
C．behaviour and their studying habits
D．performance in learning and their sleeping habits
68．The underlined word"They"in the third paragraph refers to"B"
A．the findings                     
B．the researchers
C．the seven-year-olds             
D．the sleep patterns             
69．Which of the following is TRUE according to the text？C
A．About one third of the three-year-olds go to bed at irregular bedtimes．
B．Irregular bedtimes were most common before the children were three months old．
C．More than half the children didn't have a regular bedtime until they were seven years old．
D．Teachers should help their kids establish a good bedtime routine early in childhood．
70．We can know from the text thatD．
A．boys with irregular bedtimes do worse in reading than their playmates
B．girls with regular bedtimes perform better in learning than boys
C．girls with irregular bedtimes do worse in reading than boys
D．the gap between girls with and without regular bedtimes is larger than that between boys．

分析 本文是一篇科教類閱讀，主要講的是睡眠習(xí)慣于學(xué)習(xí)表現(xiàn)之間的關(guān)系．

解答 67-70．DBCD
67題答案：D考查細(xì)節(jié)推理，根據(jù)文章第二段的The findings on sleep patterns and brain power come from a UK study of more than 11，000 seven-year-olds．
關(guān)于睡眠方式與腦力的研究結(jié)果來自對英國超過11000名7歲兒童的研究．可知本題答案為D選項(xiàng)．
68題答案：B考查細(xì)節(jié)推理，根據(jù)劃線詞所在的句子Theygathered information on the children at the ages of three…（他們收集三歲孩子…的信息）及上面的"研究結(jié)果來自對超過11000名孩子的研究"可知they指的是"研究者"；故本題答案為B選項(xiàng)．
69題答案：C考查細(xì)節(jié)推理，根據(jù)第四段的By the age of seven，more than half the children had a regular bedtime of between 19：30 and 20：30．到七歲的時(shí)候有超過一半的孩子的睡覺時(shí)間是規(guī)則的（在19：30-20：30之間）．可知"一大半的孩子直到7歲才有規(guī)則的睡覺時(shí)間"，故本題答案為C選項(xiàng)．
70題答案：D考查細(xì)節(jié)推理，根據(jù)倒數(shù)第二段的The influence was more obvious throughout early childhood in girls than in boys and appeared to be increasing．
貫穿整個兒童早期的影響在女孩子中要比男孩子中更加明顯而且有增加趨勢．可知本題答案為D選項(xiàng)．

點(diǎn)評 本文是一篇科教類閱讀，題目涉及多道細(xì)節(jié)理解題，做題時(shí)結(jié)合原文和題目有針對 性找出相關(guān)語句進(jìn)行仔細(xì)分析，結(jié)合選項(xiàng)選出正確答案．推理判斷也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確的答案．

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科目：高中英語 來源： 題型：閱讀理解

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科目：高中英語 來源： 題型：閱讀理解

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科目：高中英語 來源： 題型：填空題

15．He can'taccount（解釋）for his absence from school．

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