9．It is difficult for doctors to help a person with a damaged brain．Without enough blood，the brain lives for only three to five minute．More often the doctors can't fix the damage．Sometimes they are afraid to try something to help because it is dangerous to work on the brain．The doctors might make the person worse if he operates on the brain．
Dr．Robert White，a famous professor and doctor，thinks he knows a way to help．He thinks doctors should make the brain very cold．If it is very cold，the brain can live without blood for 30 minutes．This gives the doctor a longer time to do something for the brain．
Dr．White tried his idea on 13 monkeys．First he taught them to do different jobs，then he operated on them．He made the monkeys'blood go through a machine．The machine cooled the blood．Then the machine sent  the blood back to the monkeys'brains．When the brain's temperature was 10 C，Dr．White stopped the blood to the brain．After 30 minutes he turned the blood back on．He warmed the blood again．After their operations the monkeys were like they had been before．They were healthy and busy．Each one could still do the jobs the doctor had taught them．

28．The biggest difficulty in operating on the damaged brain is thatA．
A．the time is too short for doctors
B．the patients are often too nervous
C．the damage is extremely hard to fix
D．the blood-cooling machine might break down
29．The brain operation was made possible mainly byC．
A．taking the blood out of the brain
B．trying the operation on monkeys first
C．lowering the brain's temperature
D．having the blood go through a machine
30．What is the right order of the steps in the operation？B
a．send the cooled blood back to the brain
b．stop the blood to the brain
c．have the blood cooled down
d．operate on the brain
A．a(chǎn)，b，c，d   B．c，a，b，d   C．c，b，d，a   D．b，c，d，a
31．With Dr．White's new idea，the operation on the damaged brainA．
A．can last as long as 30 minutes
B．can keep the brain's blood warm
C．can keep the patient's brain healthy
D．can help monkeys do different jobs．

分析 本文是一篇人物故事類閱讀．文章主要講述的是醫(yī)生不斷探索如何給受傷的腦部做手術(shù)的事．針對腦部手術(shù)時間短這一現(xiàn)狀專家們想出了相應(yīng)的應(yīng)對辦法．

解答 28-31 ACBA
28．A．細(xì)節(jié)理解題．根據(jù)"It is difficult for doctors to help a person with a damaged brain．Without enough blood，the brain lives for only three to five minute．"可知腦部手術(shù)的難度在于它的時間必須很短．故選A．
29．C．細(xì)節(jié)理解題．根據(jù)"If it is very cold，the brain can live without blood for 30 minutes．"可知大腦可以在溫度很低的情況下存活三十分鐘．所以腦部手術(shù)通常在溫度較低的情況下進(jìn)行．故選C．
30．B推理判斷題．由最后一段"He made the monkeys'blood go through a machine．The machine cooled the blood．Then the machine sent  the blood back to the monkeys'brains．When the brain's temperature was 10 C，Dr．White stopped the blood to the brain．After 30 minutes he turned the blood back on．He warmed the blood again．After their operations the monkeys were like they had been before．"可知首先要冷卻血液，然后將冷卻的血液輸送回大腦，再防止血液流回大腦，最后實(shí)施腦部手術(shù)．故選B．
31．A．細(xì)節(jié)理解題．根據(jù)"If it is very cold，the brain can live without blood for 30 minutes．This gives the doctor a longer time to do something for the brain．"可知把大腦冷卻可以延長手術(shù)時間，使手術(shù)時間延長到三十分鐘．故選A．

點(diǎn)評 本文是一篇人物故事類閱讀．文章主要講述的是醫(yī)生不斷探索如何給受傷的腦部做手術(shù)的事．此類題型主要考查學(xué)生的細(xì)節(jié)理解和推理判斷能力．細(xì)節(jié)理解題是針對文中某個細(xì)節(jié)、某句話或某部分具體內(nèi)容設(shè)置問題，所以在做細(xì)節(jié)理解題時要結(jié)合原文和提干有針對性的找出相關(guān)語句進(jìn)行仔細(xì)分析，再結(jié)合選項(xiàng)選出正確答案．在做推理判斷題時不要以個人的主觀想象代替文章的事實(shí)，要聯(lián)系上下文根據(jù)文章事實(shí)進(jìn)行合乎邏輯的推理判斷．

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：短文改錯

14．I doubt that the new one will be better．that 改whether/if．

查看答案和解析>>

科目：高中英語 來源： 題型：信息匹配

6．My mother is a diligent and kind woman．She is very busy from morning till night．As a teacher，she works hard．（36）BBoth my brother and I love her dearly as she loves us．
My mother has been teaching math at a middle school in my hometown．She goes to work early in the morning and does not return home until late in the afternoon．（37）C She treats them with patience and teaches them well．For her excellent quality and very good teaching results，she has been elected as a model teacher several times．
（38）EEvery day，when she comes back home from work，she sets about doing housework，sweeping the living room and bedrooms or cleaning the furniture，and putting everything in good order．She seems to be busy all the time．As she has been very busy working every day，she looks older than her age．But she looks as cheerful and happy as ever．Mother never buys expensive dresses for herself，but she often buys some inexpensive but high quality clothes for us．（39）DShe just eats a plain meal outside when she is too busy to cook herself．She lives a busy yet simple life，without any complaints．
Often she says to us，"Work while you work，and play while you play．That is the way to be happy and gay．If you do not work，you will become lazy and be of no use to society．"What a piece of good advice this is!（40）FThis advice of hers will always serve as a guide to my behavior．My mother is great indeed，and I always feel proud of her．

A．She enjoys listening to classic music．
B．As a mother，she takes good care of us and gives us every comfort．
C．She loves her students and cares for them．
D．She never goes to expensive restaurants to enjoy meals．
E．My mother is hard-working and never wastes money．
F．I never forget it and always bear it in my mind．
G．Can you tell us something about your mother？

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

3．Move Earth-It's Not Science FictionLONDON-Scientists have found an unusual way to prevent our planet from overheating：move it to a cooler spot．All you have to do is send a few comets（彗星）in the direction of Earth，and its orbit will be changed．Our world will then be sent spinning into a safer，colder part of the solar system．
This idea for improving our climate comes from a group of US National Aeronautics and Space Administration （NASA） engineers and American astronomers．They say their plan could add another six billion years to the useful lifetime of our planet-effectively doubling its working life．
The plan put forward by Dr．Laughlin，and his colleagues Don Kory can sky and Fred Adams，needs carefully directing a comet or asteroid （小行星）so that it passes close by our planet and sends some of its gravitational energy to Earth．
"Earth's orbital speed w ould increase as a result and we would move to a higher orbit away from the Sun，"Laughlin said．
Engineers would then direct their comet so that it passed close to Jupiter or Saturn．The comet would pick up energy from one of these giant planets．Later its orbit would bring it back to Earth，and the process would be repeated．
In the short term，the plan provides an ideal way to global warming，although the team was actually concerned with a much greater danger．The Sun is certain to heat up in about a billion years and so"seriously compromise"our biosphere（生物圈）-by cooking us．
That's why the group decided to try to save Earth．
The plan has one or two worrying aspects，however．For a start，space engineers would have to be very careful about how they directed their asteroid or comet towards Earth．The smallest miscalculation（誤算）in orbit could fire it straight at Earth-with deadly results．
There is also the question of the Moon．As the current issue of Scientific American magazine points out，if Earth was pushed out of its current position，it is"most likely the Moon would be stripped away from Earth"．This would greatly change our planet's climate．

67．What makes the scientists plan to move Earth？C
A．A few comets are moving to the direction of Earth．
B．Earth's working life is coming to an end soon．
C．Earth will become too hot for mankind to keep alive．
D．The moon is moving farther and farther away from Earth．
68．If the plan is successful，Earth will have a working life ofAyears．
A.12 billion　B.6 billion　C.18 billion　D.24 billion
69．What serious problems might the plan cause according to the passage？A
A．The comet might hit Earth and man might lose the Moon．
B．Earth might be moved too far away and man might be frozen to death．
C．The comet might hit Jupiter or Saturn and never return to Earth．
D．Earth's working life might be greatly shortened．
70．What does the underlined word"compromise"mean？D
A．Surround．B．Benefit．C．Share．D．Endanger．

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

4．The evidence is thin and，to some extent，______．So we have to find move convincing evidence．（　�。�
A．ambiguousB．explicitC．figurativeD．clumsy

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

14．Beginning college is exciting：new ideas to explore，new challenges to be met and many decisions to be made；your future begins here．
However，you will find college life is different from your previous school environment．Many of us can be easily defeated by the details of running a well-balanced life．While some of us may have the know-how，I guess there are more of us who can benefit from learning about the experiences of others who have walked the college halls before you．
The following you may find useful about life on campus：
•Plan well．There are so many new things to do at a new college or university．Give yourself time to make new friends and became familiar with the campus，but don't forget why you are there．Give some time for social activities and manage your time wisely．
•If you don't have a"system"for planning your time now （like a day timer，a potable data book），get one．Most of all，don't depend on your memory．
•Don't miss the guidelines．The restrictions，rules and regulations of all kinds can usually be found in your student's handbook．Consider them well-balanced food for thought．What dates are important？What pieces of paper need to be handed in？What can/can't you do in your student residence （住處）？Who has the right for what？What do you need to complete to graduate？
•Write the word"STUDY"on the walls of your bedroom and bathroom，and maybe it will help to write it on a piece of paper and stick it on the telephone，TV and the kitchen table．Consider this-you are paying thousands of dollars for your course．You pay every time you have to repeat or replace a course．
•Build your identity．This is the time for you to decide what to do and what not to do．Take as much time as you need to explore new ideas．Do not be afraid of the beyond．This is learning to make good choices．

29．What is the main purpose of the passage？D
A．To explain why college life is exciting．
B．To persuade you to go to college．
C．To describe the importance of college life．
D．To offer advice on college life．
30．According to the passage，why is it exciting to begin college life？D
A．Because you will learn a lot of knowledge．
B．Because you will no longer be afraid of challenges．
C．Because you will make important decisions．
D．Because you get yourself prepared for your future career and life there．
31．The underlined word"know-how"refers toC．
A．a(chǎn)n understanding of college regulations．
B．a(chǎn) brand-new environment．
C．practical knowledge concerning college life．
D．college rules and regulations．
32．Which of the following statements is true according to the passage？A
A．college students should know what they have fought for on campus．
B．college students should spend as much time as possible on social activities．
C．college students needn't learn from those who went to college before them．
D．college students don't need to pay if they repeat or replace a course．

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

1．Best School BackpacksStudents of all ages need to have a reliable backpack and which is your favourite one？
1．Amazon Basics Classic Backpack
The Amazon Basics line of products aims to deliver outstanding value by getting rid of everything that is unnecessary while keeping the most important function that customers desire．The Classic Backpack may not look like much，but that is a big part of its appeal．It's cheap and cheerful，lightweight yet long-lasting with velcro（尼龍刺粘搭鏈）side pockets and a large center．With an average rating of 4.5 stars based on over 250 customer reviews，this is a well-made backpack at a terrific price．
Price：From $18.00
2．The North Face Refractor Duffel Pack
Want to head off to school with a slightly different backpack that isn't way out there？The definitely boxy Refractor Duffel Pack from The North Face offers handles on both the top and the side，plus the usual shoulder belts，for several ways to carry．The clamshell design also includes a quick-access pocket on the front and an included tablet sleeve．l00% of reviewers on The North Face online store recommend this product，making it the best-selling unisex（男女通用的） back pack on the site．
Price：$155.00
3．High Sierra Powerglide Rolling Laptop Backpack
Carrying heavy textbooks and other supplies around all day can get awfully tiring on the shoulders，back and hips．An easier way to get between classes is with a rolling backpack like the High Sierra Powerglide．The multi-compartment design includes a cushioned sleeve for laptops with screens up to 17-inches in size，plus zippered accessory compartments for quick access．The strange and large bag is recommended by over 90% of the over 900 customers who reviewed it on eBags．
Price：$ 60.00

21．What is the most remarkable feature of the Classic Backpack？B
A．It has many functions．
B．It doesn't have any spare parts．
C．It is heavy but long-lasting．
D．It only has a large center．
22．What's the convenience of the Refractor Duffel Pack？C
A．It is difficult to open and shut．
B．It has extra pockets on the front．
C．It offers different ways to carry．
D．It can be carried from every side．
23．Where is the High Sierra Powerglide different from the others？A
A．It has wheels．
B．It is heavy to carry．
C．It can contain textbooks．
D．It has a place to use a computer．
24．What do the three products have in common？D
A．They are all expensive．
B．They are all sold only online．
C．They all have large space inside．
D．They are all given praise by customers．

查看答案和解析>>

科目：高中英語 來源： 題型：完形填空

18．There is a fine line between a parent who is active and open-minded and one that doesn't know when to let go．As my daughter，Nicole，prepares to leave home for college，I'm discovering how hard it is to stay on the（36）Bside of this line．When I hold（37）Athe apron strings （圍裙帶）connecting us，Nicole，eager to （38）Cindependence，tries to loosen my grasp．What results is a （an） （39）A mother-daughter，push-me，pull-you kind of tango（探戈舞）．
For the past two years，it's gone like this：
My question："Have you thought of taking an advanced placement class （高階課程）so that you can earn college credit？"
Nicole's（40）D："No，I'm not interested in that．"
Two months ago，she was（41）Dto a great university．However，I was still the mother having a（42）Ctime letting go．The night before the introductory meeting of the university，I had read the course catalog carefully and（43）Bcourses which I thought looked good．We met on the campus the next afternoon，and Nicole's face（44）A with excitement．"I have had my entire schedule figured out，"she said．"Already？"I was astonished，（45）Bshe should have discussed it with me．I examined the schedule．Nicole hadn't taken a （an）（46）D one of the courses I had suggested．Every course she had chosen（47）C suited her interests．Just then I saw a mature，capable young woman with a（48）Amind and the ability to shape her future．She no longer needed her mother's（49）Bevery thing for her．I felt proud，though still a bit （50）C．
I（51）Athe lessons carefully．Nicole has struggled to learn over the past 18 years：（52）C，sympathy，and hard work．There have been a few holes along the way．（53）C，she is well-equipped and eager to（54）A the future．The next step，I recognized，was mine to take：giving my daughter and myself the （55）Dwe both needed．
36．A．leftB．rightC．eitherD．each
37．A．ontoB．upC．backD．out
38．A．keepB．refuseC．tasteD．bear
39．A．embarrassingB．relaxingC．livelyD．beautiful
40．A．commentB．wordC．conceptD．response
41．A．receivedB．invitedC．treatedD．a(chǎn)ccepted
42．A．goodB．greatC．hardD．easy
43．A．takenB．underlinedC．offeredD．read
44．A．lit upB．built upC．turned upD．made up
45．A．imaginingB．thinkingC．hopingD．a(chǎn)dding
46．A．onlyB．justC．evenD．single
47．A．mostlyB．hardlyC．exactlyD．slightly
48．A．sharpB．normalC．differentD．same
49．A．encouragingB．decidingC．disagreeingD．a(chǎn)greeing
50．A．a(chǎn)nxiousB．excitedC．sadD．tense
51．A．reviewedB．observedC．checkedD．studied
52．A．a(chǎn)bilityB．honestyC．responsibilityD．beauty
53．A．ThereforeB．InsteadC．StillD．Besides
54．A．hugB．discoverC．determineD．lead
55．A．characterB．strengthC．reliefD．independence

查看答案和解析>>

科目：高中英語 來源： 題型：短文改錯

19．假定英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文．文中共有10處語言錯誤，每句中最多有兩處．錯誤涉及一個單詞的增加、刪除或修改．
增加：在缺詞處加一個漏字符號（∧），并在其下面寫出該加的詞．
刪除：把多余的詞用斜線（\）劃掉．
修改：在錯的詞下畫一橫線，并在該詞下面寫出修改后的詞．
注意：1．每處錯誤及其修改均僅限一詞．
2．只允許修改10處，多者（從第11處起）不計分．
Good morning，everyone，
It's great honor for me to speak here．My name's Li Xiaojun，born of a harmonious family．My father and mother are all high school teachers．Influenced by them，I read widely during my early age，but I've developed a great interest in arts and sports．I'm easygoing，get along well with my classmates．
It is this personality which helps me win over all my classmates'friendships，and also help me overcome many difficulties both in academic and personal life．Being admitted in your university has always been a beautiful dream for me．I dream constantly that I，along with mine classmates，will study happy with the help of the respectable professors；I dream that I will swim freely in the sea，enjoying the waves of knowledge．
I hope all my dream will come true in the near future．
Thank you．

查看答案和解析>>

同步練習(xí)冊答案