根據(jù)短文內(nèi)容，從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)。有兩項(xiàng)為多余選項(xiàng)。

1.From 18－25, according to I．Q. scores；but you are wiser and more experienced with increasing age. You are smartest in your 20's; around 30, your memory begins to go down, particularly your ability to perform mathematical computations. 2.__ Your vocabulary at the age of 45, for example, is three times as great as when you graduated from college. At 60, your brain has almost four times as much information as it did at the age of 21. 3.You have the best physical sense of yourself from 15 to 24; the best professional sense from 40 to 49. Before the age of 24, we believe that our happiest years are yet to come；over 30，we believe that they are behind us. A National Health survey agrees: after the age of 30, we become more realistic and do not view happiness as a goal in itself. If we keep our health, achieve professional and emotional goals, happiness, we feel, will follow.

__4.__ Generally between 30 and 39，but the peak (頂峰) varies with different professions(職業(yè)). Mosart wrote a symphony (交響曲) and four sonatas by the age of 8, and Mendelssohn composed his best­known work A Midsummer Night's Dream at 17, but most of the great music was written by men between 33 and 39.

Though the peak in most fields comes early, most Nobel Prize winners did their top research in their late 20's and 30's—creative people continue to produce work with high quality(質(zhì)量) throughout their lives _5.__

A. When are you most creative (創(chuàng)造性的)?

B. When are you happiest?

C. When are you smartest?

D. Do you know what I．Q. refers to?

E. But your I．Q. for other tasks goes up.

F. Creative people usually produce a lot of works.

G. For the “well­conditioned mind”， there is no upper limit..（限制）

1.C

2.E

3.B

4.A

5.G

【解析】

試題分析：人生的起伏似乎沒有可預(yù)知的模式，但是科學(xué)家現(xiàn)在發(fā)現(xiàn)有一些模式相當(dāng)明確，絕大多數(shù)人都有不例外。即使你度過了一些最佳時(shí)期，你仍然會(huì)在將來經(jīng)歷另外幾個(gè)最佳時(shí)期。某些最佳期時(shí)期似乎在生命的后半段才會(huì)到來。對(duì)于“狀態(tài)良好的大腦”，不存在極限。

1.1】C根據(jù)下一句“根據(jù)智商得分，你從15歲至25歲最聰明”。從這里可知上一句在問：什么時(shí)候你最聰明？，故選C

2.2】E根據(jù)前面提到：20多歲的時(shí)候你的思維最敏捷；30歲左右，記憶力開始衰退，尤其是你的數(shù)學(xué)計(jì)算能力。和后面說的：例如45歲時(shí)你的詞匯量是你剛從大學(xué)畢業(yè)時(shí)的3倍。60歲時(shí)你大腦中儲(chǔ)存的信息幾乎是你21歲時(shí)的4倍。所以此空表達(dá)的意思應(yīng)是轉(zhuǎn)折，“然而，你做其他事情的智商提高了”。因此可知選E。

3.3】B根據(jù)下一句說的“15歲至24歲之間你的身體感覺最好；40歲至49歲之間你對(duì)自己的職業(yè)感覺最佳”。可知前面應(yīng)該在問：什么時(shí)候你的感覺最好？故得知選B。

4.4】A根據(jù)下面所說的：一般在30歲至39歲之間。但是不同的職業(yè)，高峰期也不相同。和后面句的一些實(shí)例，可知前面在問：什么時(shí)候你最富創(chuàng)造力？故選A。

5.5】G根據(jù)前面提到：雖然大多數(shù)領(lǐng)域的最佳狀態(tài)來得比較早-----大多數(shù)諾貝爾獎(jiǎng)獲得者都是25歲以后、30多歲時(shí)完成他們最出色的研究的——但是創(chuàng)造型的人會(huì)在生命中不斷地完成高質(zhì)量的工作�？芍颂幈磉_(dá)的應(yīng)該是：對(duì)于“狀態(tài)良好的大腦”，不存在極限。故選G。

考點(diǎn)：考查說明文閱讀。

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