Question

16．Ellen Sims is an 18-year-old college student．She has an important history exam tomorrow morning．Ellen is going to study all night．She is not going to sleep at all．Many college students，like Ellen，do this often．They think that they can study all night．And they think that in the morning，they will remember everything that they studied the night before，Ellen thinks that this is a good way to study，but many doctors disagree．They say that sleep is very important for memory and brain development．
Scientists at Harvard Medical School in the US studied sleep and memory．They studied 24people．First，they asked the people to look at a picture and remember it．At night，they put the people in two groups of 12．Group One went to sleep．Group Two did not．A few days later，the scientists showed some pictures to both groups．They asked the people to find the picture they saw before．The people in Group One did well．But the people in Group Two did not do well．It wasn't easy for them to remember the picture．What happened？Scientists say that sleep helps our memory．After we learn something new，sleep helps us remember it．And when we don't sleep，we can forget new things．
Scientists say that many teenagers，like Ellen，sleep too little．They go to school and they work，too．They also spend time with their friends．They are always busy and they think that sleep doesn't matter．But scientists say the brains of teenagers are still developing，and sleep is a very important part of the development．When teens sleep less than six hours，they can't think clearly．That is not very helpful for a student who is taking an exam．

65．Is Ellen going to study all night before the history exam？Yes，she is
66．Who studied sleep and memory？Scientists at Harvard Medical School in the US
67．How many people were there in each group for this study？12 people
68．Why did Group One remember the picture better？Because sleep helped their memory．/Because sleep helped them remember things
69．What can we learn from the passage？The brains of teenagers are still developing，and sleep is a very important part of the development．/Sleep is very important for memory and brain development．

Answer 1

分析 這篇短文講的是有些人認(rèn)為熬夜學(xué)習(xí)對(duì)記憶有幫助，其實(shí)科學(xué)研究證明并不是這樣，尤其青少年更要有充足的睡眠，這一點(diǎn)非常重要．

解答 65．Yes，she is．細(xì)節(jié)理解題．根據(jù)Ellen is going to study all night．She is not going to sleep at all可知愛(ài)倫打算在歷史考試前通宵學(xué)習(xí)，故答案為：Yes，she is．
66．Scientists at Harvard Medical School in the US細(xì)節(jié)理解題．根據(jù)Scientists at Harvard Medical School in the US studied sleep and memory可知美國(guó)哈佛醫(yī)學(xué)院的科學(xué)家研究睡眠和記憶，故答案為：Scientists at Harvard Medical School in the US．
67.12 people．細(xì)節(jié)理解題．根據(jù)they put the people in two groups of 12可知每個(gè)團(tuán)隊(duì)有12個(gè)人，故答案為：12 people．
68．Because sleep helped their memory．/Because sleep helped them remember things．細(xì)節(jié)理解題．根據(jù)Group One went to sleep和Scientists say that sleep helps our memory可知一組是因?yàn)橛谐渥愕乃�眠，這幫助記憶，故答案為：Because sleep helped their memory．/Because sleep helped them remember things．
69．The brains of teenagers are still developing，and sleep is a very important part of the development．/Sleep is very important for memory and brain development．主旨大意題．根據(jù)文章內(nèi)容But scientists say the brains of teenagers are still developing，and sleep is a very important part of the development．可知從文中我們可以了解到青少年的大腦還在發(fā)育，睡眠是成長(zhǎng)的一個(gè)重要部分，故答案為：The brains of teenagers are still developing，and sleep is a very important part of the development．/Sleep is very important for memory and brain development．

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