6.Ever walked to the shops only to find once there you've completely forgotten what you went for?Or 
struggled to remember the name of an old acquaintance?For years we've accepted that a scatty(低能的)brain is as much a part of aging as wrinkles(皺紋)and grey hair.But now a new book suggests that 
we've got it wrong.
     According to the Secret Life of the Grown-up Brain,by science writer Barbara Strauch,when it comes
 to the important stuff,our brains actually get better with age.In fact,she argues that new studies 
have found that our brain hits its peak between our 40s and 60s---much later than previously thought.
     Furthermore,rather than losing many brain cells as we age,we retain them,and even produce new ones well into middle age.For years it's been assumed that brain,much like the body,declines with age.
But the longest,largest study into what happens to people as they age suggests otherwise.
     This continuing research has followed 6,000 people since 1956,testing them every seven years.It 
has found that,on average,participants performed better on cognitive (認(rèn)知的)tests in their late 40s 
and 50s than they had in their 20s.Specifically,older people did better on tests of vocabulary,spatial orientation (空間定向)skills,verbal memory and problem solving.
     Where they did less well was number ability and perceptual (感性的)speed---how fast you can 
push a button when prompted (提示).However,with more complex tasks such as problem-solving and
 language,we are at our best at middle age and beyond.In short,researchers are now coming up with 
scientific proof of that we do get wiser with age.
     Neuroscientists are also finding that we are happier with age.Older people were much better at 
controlling and balancing their emotions.It is thought that when we're younger we need to focus more 
on the negative aspects of life in order to learn about the possible dangers in the world,but as we get 
older we've learnt our lessons and are sub-consciously aware that we have less time left in life-and it 
therefore becomes more important for us to be happy.

46.The questions asked in the first paragraph are used toA.
A.make an introduction to the main topic
B.prove the poor memory of the old people
C.stress the importance of a good memory
D.explain why the old tend to forget things
47.People used to think thatB.
A.new brain cells will grow even in the old age
B.our brain will function worse with age
C.our brain arrives at its best state in our sixties
D.the brain declines while the body rises
48.According to the passage,the old are poor inC.
A.how many words they can remember
B.how effectively they can solve problems
C.how quickly they can react physically
D.how to judge an object after being circled
49.The old people tend to be happy becauseD.
A.they are rich in personal feelings
B.they aren't afraid of the dangers
C.they like to ignore negative things in life
D.their time is too limited to waste
50.The best title for the passage may beA.
A.We Do Grow Wiser as We Get Older
B.Happiness Is More Important for the Old
C.Being Forgettable Is a Part of Ageing
D.Ageing Brings Happiness.

分析 短文主要通過推翻"以往人們認(rèn)為隨著年齡的增長,我們腦袋越不好用"這個(gè)理念,通過科學(xué)研究表明:人越老越聰明.

解答 46.A,推理判斷題,短文開頭通過兩個(gè)問題是為了引出其主題,以前我們覺得隨著年齡的增長,我們腦袋越不好用,但短文通過研究表明:人越老越聰明,故答案為A.
47.B,細(xì)節(jié)理解題,根據(jù)句子For years we've accepted that a scatty(低能的)brain is as much a part of aging as wrinkles(皺紋)and grey hair.可知,以前人們認(rèn)為隨著年齡的增長我們的腦袋越不好用,故答案為B.
48.C,細(xì)節(jié)理解題,根據(jù)句子Where they did less well was number ability and perceptual (感性的)speed---how fast you can push a button when prompted (提示).可知,年長者在感性速度方面不太好,也就是身體反應(yīng)速度,故答案為C.
49.D,細(xì)節(jié)理解題,根據(jù)句子but as we get older we've learnt our lessons and are sub-consciously aware that we have less time left in life-and it therefore becomes more important for us to be happy.可知,年長者意識(shí)到自己剩下的時(shí)間不多,故而快樂對(duì)于他們來說才是重要的,故答案為D.
50.A,標(biāo)題歸納題,短文主要通過推翻"以往人們認(rèn)為隨著年齡的增長,我們腦袋越不好用"這個(gè)理念,通過科學(xué)研究表明:人越老越聰明,故最好的題目為A.

點(diǎn)評(píng) 解答任務(wù)型閱讀理解題,首先對(duì)原文材料迅速瀏覽,掌握全文的主旨大意.因?yàn)殚喿x理解題一般沒有標(biāo)題,所以,速讀全文,抓住中心主旨很有必要,在速讀的過程中,應(yīng)盡可能多地捕獲信息材料.其次,細(xì)讀題材,各個(gè)擊破.掌握全文的大意之后,細(xì)細(xì)閱讀每篇材料后的問題,弄清每題要求后,帶著問題,再回到原文中去尋找、捕獲有關(guān)信息.最后,要善于抓住每段的主題句,閱讀時(shí),要有較強(qiáng)的針對(duì)性.對(duì)于捕獲到的信息,要做認(rèn)真分析,仔細(xì)推敲,理解透徹,只有這樣,針對(duì)題目要求,才能做到穩(wěn)、準(zhǔn).

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中英語 來源: 題型:書面表達(dá)

16.假定你是李華,正在一所美國學(xué)校學(xué)習(xí)英文.你對(duì)學(xué)校中國藝術(shù)俱樂部 (Chinese Art Club) 很感興趣,決定申請(qǐng)加入.現(xiàn)給該俱樂部負(fù)責(zé)人寫一封信,內(nèi)容如下:
1、表示有意加入;  2、介紹自己繪畫特長;  3、說明性格優(yōu)勢(shì); 4、期待滿意答復(fù).
注意:①詞數(shù):100左右;
②可適當(dāng)增加細(xì)節(jié),以使行文連貫;
③文章起始句和結(jié)尾已給出,不計(jì)入總詞數(shù).
Dear Sir/Madam.
I'm Li Hua,a Chinese student taking the English courses at our school.
I'm interested in Music Club at Weekend and I'd like to join it if possible.(表示有意加入)
I'm good at playing the piano.I have been playing the piano for more than ten years and I once won the third place in a nation-wide piano playing competition.【高分句型一】Also I can sing Chinese folk songs very well.(介紹音樂特長)As for my personalities,I think I'm open-minded,friendly and easy-going,and above all,I really enjoy making friends with people from all around the world.【高分句型二】(說明性格優(yōu)勢(shì))I would be very happy if I can be admitted into the club!Looking forward to your reply!(期待滿意答復(fù))
Best wishes!
Yours,
Li  Hu.

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

17.High blood pressure is defined as 140mmHg over 90mmHg,and for years,doctors have used that measure as the threshold for prescribing anti-hypertensive drugs.But based on new recommendations,adults who are 60or older can wait until their readings reach 150over 90or above to begin medication.After reviewing available evidence on the effects of blood pressure treatments,the Institute of Medicine's Eighth Joint National Committee (JNC 8)concluded that aggressive treatment can lead to lightheadedness,falls and fainting in elderly populations-so they advised loosening the guidelines for starting medication.
But days after the guidelines were published,heart experts raised concerns about how the advice would affect patients; inadequately controlled blood pressure is a risk factor for heart attack and stroke.
Members of the JNC8who voted against the recommendations published an editorial in the Annals of Internal Medicine outlining their reasons for opposing the change."We,the panel minority,believed that evidence was insufficient to increase the target goal from its current level because increasing the goal may cause harm by increasing the risk for CVD(心血管疾。゛nd partially undoing the remarkable progress in reducing cardiovascular mortality in Americans older than 60,"they wrote.
Dr.Suzanne Steinbaum said she has not changed the way she treats her patients over 60.She says,"As a preventive cardiologist(心臟病學(xué)家),these new guidelines have made me crazy.What we have learned is that blood pressure treatment even for a patient above 80has been shown to be critical.It goes against everything we know as cardiologists."
Defending the panel's decision,Dr.Paul A.James,co-chairman of the guidelines committee,said in an email to TIME,"I can assure you that the panel discussed the opinions of the minority members on three different occasions and the majority were not persuaded that the expert skills of a few members should override the scientific evidence."
James said that as with any medications,doctors will use the blood pressure recommendations as guidelines,and prescribe drugs based on their evaluation of each patient."Medications prescribed by physicians all have the potential to be dangerous,"he wrote."Educating doctors about the scientific evidence will help doctors make better decisions with patients.Physicians who practice on the basis of scientific evidence usually subscribe to simple rule-if the medicine cannot be shown to help the patient,then the medicine should not be prescribed."
The editorial isn't likely to change them any time soon.But the concerns should urge doctors to monitor their patients more closely and tailor medications and their doses more carefully.

71.a(chǎn)ggressive72.recommended73.Opposition74.risk75.lack
76.unreasonable77.convincing78.educating79.rule80.careful/responsible.

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

14.Playing tourist in London?These are some of the city's finest and free museums and galleries.
1.British Museum
The British Museum houses a vast collection of world art.Its collection of over 8 million works is among the largest in Europe,documenting the story of human culture from its beginning to the present.
Open daily,10:00-17:30
Closed 24-26 December and 1 January
2.National Gallery
Founded in 1824,the National Gallery houses a collection of over 2,300 paintings dating from the mid-13th century to 1900.The museum is the fourth most visited art museum in the world,after the Musee du Louvre,the British Museum,and the Metropolitan Museum of Art.
Open daily,10:00-18:00,F(xiàn)riday 10:00-21:00
Closed 1 January and 24-26 December
3.National Maritime Museum
The National Maritime Museum is the largest of its kind in the world,holding a large number of significant items that record Britain's rich history at sea,including books from the 15th century,as well as old shipping records and Royal Naval uniforms.
Open daily,10:00-17:00
Last entry 16:30
Closed 24-26 December
4.National Portrait Gallery
The National Portrait Gallery house a collection of portraits of famous British people.It was the first portrait gallery in the world when it opened in 1856.The collection includes photographs and caricatures(漫畫)as well as paintings,drawings and sculptures.
Open daily,10:00-18:00,
Thursday-Friday until 21:00

21.What do we know about the National Gallery?C
A.It has a history of almost 200 years.
B.It only exhibits art works of 200 years ago.
C.It is the fourth most visited art museum in Europe.
D.It contains the largest collection in the world.
22.You can enter the National Maritime Museum atC.
A.11:00 on Christmas Day
B.8:00 on Thursday
C.15:00 on 1January
D.16:40 on Friday
23.What is the purpose of the passage?D
A.To persuade readers to visit London.
B.To compare some famous museums in London.
C.To introduce some places of interest in Britain.
D.To recommend some free museums and galleries in London.

查看答案和解析>>

科目:高中英語 來源: 題型:書面表達(dá)

1.假定你是高三學(xué)生李華.請(qǐng)給英語老師Jack寫一封信,表達(dá)對(duì)他的感謝.內(nèi)容包括:
1.感謝的理由.(可結(jié)合具體事例,如學(xué)習(xí)中經(jīng)歷的困難或取得的成績)
2.表達(dá)真摯的感謝和祝福.
注意:1.詞數(shù)80左右,開頭和結(jié)尾己為你寫好;
2.可適當(dāng)增加細(xì)節(jié),使行文連貫.
Dear Jack,
I'm Li Hua,one of your students.And I am writing to convey my heartfelt thanks to you.
Looking back,I was absent-minded in class and never really got involved in learning.(高分句型一)I was upset and discouraged because of poor performances in exams.Fortunately,you offered timely encouragement and tutored me after class,which got me back on track.(高分句型二)Thanks to your help,my efforts paid off and now I feel crazy about English.
I really appreciate all the help you offer to me.Wish you all the best!
Yours sincerely,
Li Hua.

查看答案和解析>>

科目:高中英語 來源: 題型:聽力題

3.聽第7段材料,回答第8~9題.
8.What does the man think of Abby's presentation?
A.It is well organized.
B.It is too long.
C.It is well prepared.
9.What should Abby do to improve her presentation?
A.Speak clearly.     B.Be more confident.C.Avoid long pauses.

查看答案和解析>>

科目:高中英語 來源: 題型:聽力題

10.聽第6段材料,回答第6至7題.
6.Where does this conversation probably take place?
A.At a hotel.   B.On an island.   C.In a travel office.
7.What is the man doing?
A.Planning a tour.   B.Looking for a hotel      C.Trying to find a book.

查看答案和解析>>

科目:高中英語 來源: 題型:聽力題

7.聽第7段材料,回答第8、9題.
8.What's the weather like outside?
  A.It's snowy.   B.It's raining.   C.It's freezing.
9.What team was the woman on in high school?
  A.Volleyball team.   B.Skating team.   C.Swimming team.

查看答案和解析>>

科目:高中英語 來源: 題型:聽力題

8.聽第9段材料,回答第13 至16題.
13.Why was the boy a bit nervous?
A.He was a newcomer to the school.
B.He was afraid of getting up early.
C.He didn't prepare for the exam.
14.What time does the first class begin?
A.At 10 to 8:00.    B.At 8:20.    C.At 8:00.
15.What must the students do before morning reading?
A.Do morning exercises.    B.Turn in homework.    C.Copy words and expressions.
16.What can they do if they feel hungry?
A.Have something to eat in class.    B.Buy something to eat during the break.
C.Ask the teacher for some food.

查看答案和解析>>

同步練習(xí)冊(cè)答案