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1、【优化指导】课标全国高考英语总复习 课时作业44 北师大版一、阅读理解AA good nights sleep may help your brain file away lessons learned during the day.But，according to a new study，the brain begins processing and storing those memories long before its time for bed and continues to do so even while youre thinking about and doing other
2、 things.Recent studies have shown that the parts of the brain that we use to learn a task become active again during sleep.This activity，scientists suggest，could be the brain transferring memories from shortterm to longterm storage.But the brain doesnt necessarily wait until the lights are out to be
3、gin processing those memories.To find out how the brain handles memories during waking hours，scientists gave 15 volunteers two tasks，each requiring different parts of the brain to learn.In one task，the subjects learned how to drive in a virtual(虚拟的)town and then searched the town for an object.In th
4、e second task，they learned to predict where a series of dots would appear on a screen.Using a special machine，the researchers scanned the volunteers brains right before and right after the tasks.They compared the two images to see whether the regions of the brain involved in learning the task were s
5、till active even after the task was completed.After a break，the scientists took a third image of each participants brain.They wanted to determine whether these regions in the brain continued to be active after more time had passed and they discovered that，for at least an hour after a learning task，t
6、he brain stayed active.It appeared to continue processing the new information.Furthermore，the images showed that distracting the subjects doesnt affect their ability to store memories.The processing continues even when theyre thinking about or doing other things.Some scientists say this could mean t
7、hat sleep isnt essential for storing memories.Others disagree.Until thats settled，its probably still better to be on the safe side，getting plenty of sleep.1The fact that the parts of the brain that we use to learn a task become active again during sleep may suggest _.Awe are dreaming a dream about t
8、he lessons we learned in the daytimeBwe cant have a good sleep if we work too hard before going to bedCthe brain stays active even when we are in deep sleep at nightDthe brain is transferring memories from shortterm to longterm storage2The scientists took a third image of each participants brain to
9、_.Afind whether the brain continues processing the new information after more time had passedBsee whether the regions of the brain involved in learning the task were working activelyCprove different parts of the brain are involved in learningDdiscover whether the processing continues even when peopl
10、e are doing other things3The underlined word“distractin the sixth paragraph probably has the closest meaning to“_AattractBdivertCsolve Dconsider4. It can be inferred from the passage that _.Asleep isnt essential for storing memoriesBgetting plenty of sleep is a waste of timeCscientists havent agreed
11、 on whether sleep helps memoryDsleep on the safe side is good to usBAlthough it might have happened anywhere，my encounter with the green banana started on a steep mountain road in the central area of Brazil.I was driving up through beautiful countryside when the radiator(水箱)began to leak.I stopped a
12、t the next village，which consisted of a small store and a few houses.People came over to look.“Thats easy to fix，a man said.He sent a boy running for some green bananas.He patted me on the shoulder，assuring me that everything would work out.“Green bananas，he smiled.Everyone agreed.We chatted casuall
13、y while all the time I was wondering what they could possibly do to my radiator with their green bananas.I did not ask them，though，as that would show my ignorance，so I talked about the beauty of the land that lay before our eyes.Huge rock formations，like Sugarloaf Mountain in Rio de Janeiro，rose up
14、all around us.“Do you see that tall one right over there？asked the man，pointing to a particularly tall，slender pinnacle (尖端)of dark rock.“That rock marks the center of the world.I looked to see if he was teasing me，but his face was serious.He，in turn，inspected me carefully，as if to make sure I grasp
15、ed the significance of his statement.The occasion called for some show of recognition on my part.“The center of the world？I repeated，trying to show interest.He nodded.“The absolute center.Everyone around here knows it.At that moment the boy returned with an armful of green bananas.The man cut one in
16、 half and pressed the cut end against the radiator jacket.The banana melted into a glue against the hot metal，stopping the leaks instantly.I was so astonished at this that I must have looked rather foolish and everyone laughed.They then refilled my radiator and gave me extra bananas to take along.An
17、 hour later，after using the green banana once more，my radiator and I reached our destination.It took me a little longer to fully grasp the importance of the rock which the villagers believed marked the center of the world.I had at first doubted their claim，as I knew for a fact that the center was lo
18、cated somewhere else in New England.After all，my grandfather had come from there.But gradually I realized the village people had a very reasonable belief and I agreed with them.We all tend to regard the center as that special place where we are known，where we know others，where things mean much to us
19、，and where we ourselves have both identity and meaning：family，school，town and local region could all be our center of the world.The lesson which gradually dawned on me was actually very simple.Every place has special meanings for the people in it，and in a certain sense every place represents the cen
20、ter of the world.The world has numerous such centers，and none of the students or travelers can experience all of them.But once a conscious breakthrough to a second center is made，a lifelong perspective and collection can begin.The cultures of the world are full of unexpected green bananas with speci
21、al value and meaning.They have been there for ages，ripening slowly，perhaps waiting patiently for people to come along to encounter them.In fact，a green banana is waiting for all of us if we would leave our own centers of the world in order to experience other places.5Whats the authors reaction to th
22、e mans remarks on the center of the earth?AHe thought the man was serious about what he said.BHe thought that the man was telling the truth.CHe thought that the man was telling a story.DHe thought the man was making fun of him.6What does the author come to learn from the mans remarks?AThe rock menti
23、oned by the man is really the center of the world for everyone.BThere are lots of such“rocksin the world representing the center of the world.CThere is only one center in the world that is actually in New England.DAs a matter of fact，the center of the world does not exist in his opinion.7What can we
24、 infer from the last paragraph?AA green banana refers to a banana that is not ripe.BA green banana is something that can be used to repair a leaking radiator.CA green banana refers to a certain culture that is unknown to an outsider.DA green banana is something useful that we find unexpectedly.二、短文填
25、空根据短文内容，从短文后的选项中选出能填入空白处的最正确选项。选项中有两项为多余选项。_1_Many things can become distractions(分散注意力)Your ability to focus your mind，emotions，and physical movements will directly influence your success.Staying focused on the task at hand can be easier said than done.Here are some powerful techniques that can hel
26、p you improve your ability to focus.2_ Exercising helps you gain better command of your body，and even goes beyond the body，giving you more flexibility not just physically but also emotionally and mentally.When you feel more comfortable in your body，you increase your selfconfidence，which helps you fe
27、el more relaxed.3_ Its easy to get distracted by things in your background，but in order to perform well you have to maintain a high degree of focus.When you relax your thoughts it trains your mind to deal effectively with outside distractions so you can stay centered on what matters most at the mome
28、nt._4_It prevents you from overreaction and also from overacting.When your emotions settle down，you gain greater awareness of the environment youre in，and feel calm and in control._5_ The good thing is that selfcontrol can be developed.Start exercising frequently，get yourself into meditation，and sta
29、rt to feel positive changes in your career and your life in general.AIn short，focus requires selfcontrol.BThere are many benefits of exercising.CGenerally speaking，you need to practise a lot.DThere are still some disadvantages of exercises.EYour emotions are well served by meditation as well.FFocus
30、is an important part of success and achievement in general.GIt helps block out all the noise and activities that are going on around you.5_三、短文改错增加：在缺词处加一个漏字符号()，并在其下面写上该加的词。删除：把多余的词用斜线()划掉。修改：在错的词下划一横线，并在该词下面写出修改后的词。注意：1.每处错误及其修改均仅限一词；2只允许修改10处，多者(从第11处起)不计分。Dear classmates，Ill tell you everything
31、about my future.Every one of us is thinking about the future.Do you know what that mine is？I have decided to become the middle school teacher.Does it sound surprising？I have this dream when I was only a child.I love children.As we all can see，teachers are great needed in our country，especially in th
32、e countryside.Many parents want his children to be welleducated，and they dont want them to be teachers.Perhaps one of the reason is that teachers work too hard but get too little.In spite that，I am determined to devote all my life to teach in my hometown.参考答案与解析课时作业(四十四)Unit 22B卷一、阅读理解1解析：细节理解题。根据第二
33、段前两句内容可知，睡眠期间，我们用以学习某项任务的大脑区域依然活泼，这说明大脑正把关于该活动的记忆由短期记忆转化为长期记忆。答案：D解题导语：作者通过他的一段经历提出了一个问题，即如何看待异域文化和文化差异。理解本文的关键是把握“青香蕉在文章中含义的变化。5解析：细节理解题。根据文章第三段首句可知，作者开始时认为那个人是在和他开玩笑。答案：D6解析：细节理解题。根据第五段和第六段可知，作者后来渐渐认识到每一种文化都有自身的精妙之处，每一个地方对于生活在那里的人来说都有特殊的意义，从某种意义上说都可代表世界的中心。答案：B7解析：推理判断题。根据前文作者的经历和体会及最后一段可知a green banana被作者赋予了一种象征意义：代表一个地方不为外人所知的文化，它有待于人们去接触，去了解。答案：C二、短文填空三、短文改错