(2019·全國Ⅰ)
As data and identity theft becmes mre and mre cmmn,the market is grwing fr bimetric(生物測量) technlgies—like fingerprint scans—t keep thers ut f private e-spaces.At present,these technlgies are still expensive,thugh.
Researchers frm Gergia Tech say that they have cme up with a lw-cst device(裝置) that gets arund this prblem:a smart keybard.This smart keybard precisely measures the cadence(節(jié)奏) with which ne types and the pressure fingers apply t each key.The keybard culd ffer a strng layer f security by analyzing things like the frce f a user’s typing and the time between key presses.These patterns are unique t each persn.Thus,the keybard can determine peple’s identities,and by extensin,whether they shuld be given access t the cmputer it’s cnnected t—regardless f whether smene gets the passwrd right.
It als desn’t require a new type f technlgy that peple aren’t already familiar with.Everybdy uses a keybard and everybdy types differently.
In a study describing the technlgy,the researchers had 100 vlunteers type the wrd “tuch” fur times using the smart keybard.Data cllected frm the device culd be used t recgnize different participants based n hw they typed,with very lw errr rates.The researchers say that the keybard shuld be pretty straightfrward t cmmercialize and is mstly made f inexpensive,plastic-like parts.The team hpes t make it t market in the near future.
1.Why d the researchers develp the smart keybard?
A.T reduce pressure n keys.
B.T imprve accuracy in typing.
C.T replace the passwrd system.
D.T cut the cst f e-space prtectin.
2.What makes the inventin f the smart keybard pssible?
A.Cmputers are much easier t perate.
B.Fingerprint scanning techniques develp fast.
C.Typing patterns vary frm persn t persn.
D.Data security measures are guaranteed.
3.What d the researchers expect f the smart keybard?
A.It’ll be envirnment-friendly.
B.It’ll reach cnsumers sn.
C.It’ll be made f plastics.
D.It’ll help speed up typing.
4.Where is this text mst likely frm?
A.A diary. B.A guidebk.
C.A nvel.D.A magazine.
B
Children can spend hurs a day lking at cmputer screens and ther digital devices.Sme eye dctrs say this leads t an increase in “cmputer visin syndrme(電腦視力綜合征)”.
Nathan Bnilla-Warfrd is an ptmetrist(驗(yàn)光師)in Tampa,Flrida.He has seen an increase in prblems in children.“A lt mre children cme int the ffice either because their parents have nticed that they have headaches r red r watery eyes r discmfrt,r because their nearsightedness appears t be increasing and they’re wrried,”he says.
Dr.Bnilla-Warfrd says part f the prblem is that children may be mre likely t pay n attentin t early warning signs than adults.“Even if their eyes start t feel uncmfrtable r they start t get a headache,they’re less likely t tell their parents,because they dn’t want t have the game r the cmputer r whatever taken away,”he explains.
He says anther part f the prblem is that peple blink(眨眼) less ften when they use digital devices.He says,“A persn wh uses an electrnic device blinks abut ne third as much as we nrmally d in everyday life.And that can result in the frnt part f the eye drying and nt staying prtected like nrmal.”
Eye dctrs ffer suggestins like the fllwing which is knwn as the 20/20/20 rule.That means every twenty minutes lking away twenty feet r mre fr at least twenty secnds frm whatever device yu’re using.
Other suggestins include putting mre distance between yu and the device and using gd lighting.Of curse,anther way is t spend less time lking at screens.Many experts say children shuld spend n mre than tw hurs a day using digital devices—with n screen time fr children under tw.
But nt all eye dctrs have nticed an increase in prblems in Hunter,frm Bstn Children’s Hspital,has nt seen an increase in his practice.“While it is pssible t develp fatigue lking at screens fr a lng perid f time,there’s certainly n prf that it actually causes any damage t the eyes,”he says.
5.Which f the fllwing is TRUE accrding t the passage?
thinks using cmputers causes nearsightedness.
B.Peple keep their eyes prtected against drying by blinking nrmally.
C.Children under tw can watch TV fr less than tw hurs a day.
Hunter says headaches cause an increase in eye prblems.
6.The syndrme in children is mre likely serius than in adults because .
A.adults are cleverer than children
B.adults ignre taking care f children
C.children always verlk early warning signs
D.children always frget their parents’ wrds
7.What des the underlined wrd “fatigue” mean?
A.Interest. B.Ability.
C.Tiredness.D.Difficulty.
8.What can be the best title fr the passage?
A.Lking at Screens:Tw Hurs r Mre
B.Hw Can Children Use Their Eyes Prperly
C.Using Digital Devices:Advantages and Disadvantages
D.Hw Much Screen Time Is Prper fr Children
Ⅱ.七選五閱讀
Hwtsurviveandthrive
Here are sme tips t help yu learn nt nly t survive,but t thrive(有成)and grw in a chatic wrld.
1.Trytbuildnstrengthsratherthanfcusnlimitatins. 1 Maybe yu’ll becme an aut mechanic(技工),r maybe yu’ll make gd use f yur ability t classify detailed infrmatin t build a career as a bilgist r druggist.
yu fail a curse? 2 Mst f us can’t avid an ccasinal failure,but we can learn bunce-back attitudes thrugh failures.
3. 3 Cecilia,a shy twelve-year-ld,became livelier when she wn the lead in a schl play.“We want yu t imprve yur grades,but nt spend time n plays!” said her wrried mther.T everyne’s surprise,Cecilia’s grades imprved. 4 Mst imprtantly,n matter what happens,Cecilia can return t that feeling f success whenever she gets discuraged.
4.Gettingintatpuniversity—ranyuniversity—willntguaranteesuccess.I’ve met peple frm tp universities wh have experienced unemplyment and even hmelessness. 5 Career-changers wh face the future with an attitude f “I can handle anything” are the nes wh win tday.While in difficulties,they keep up their spirits till they figure ut what t d next.
A.Have n idea abut yur future plan?
B.Face rejectin frm a first-chice cllege?
C.Life is hard at the mment,but we’re surviving.
D.Try t experience success in any area f yur life.
E.I’ve met high schl drp-uts wh became very successful.
F.D yu spend hurs studying mdels f cars fr the last twenty years?
G.And she made new friends with the “gd kids” wh were als achievers.
Ⅲ.短文改錯(cuò)
Dear Tm,
I’m glad t hear that yu are very interesting in Guxue.Let me t give yu a simple intrductin t it.
Generally speaking,Guxue refers t the excellent traditinal Chinese culture,that includes philsphy,literature,histry,music,painting and s n.Guxue has been playing an increasing imprtant part in China,especially fr them students.Nt nly did it tell us hw t study,but it als teaches us hw t live.Mre and mre Guxue curses is given in schls f different levels all ver China.
If yu want t get better understanding f Guxue,yu are welcme t China t learn it,feel it and enjy it.I’m sure yu’ll benefit frm living in tw different culture.I’m lking frward t see yu sn in China.
Yurs,
Wang Kai
考點(diǎn)規(guī)范練8(必修2 Unit3)
Ⅰ.【解題導(dǎo)語】本文是一篇說明文。文章介紹了佐治亞理工學(xué)院的研究者們新開發(fā)了一種鍵盤,它能根據(jù)用戶打字模式準(zhǔn)確識別出使用者。
1.D 細(xì)節(jié)理解題。根據(jù)第一段描述及第二段第一句“ResearchersfrmGergiaTechsaythattheyhavecmeupwithalw-cstdevicethatgetsarundthisprblem:asmartkeybard.”可知,研究者研發(fā)了智能鍵盤是為了降低電子空間保護(hù)的成本。故選D項(xiàng)。
2.C 細(xì)節(jié)理解題。根據(jù)第二段第四、五句“Thesepatternsareuniqueteachpersn.Thus,thekeybardcandeterminepeple’sidentities...”可知,正是由于每個(gè)用戶都有自己獨(dú)特的擊打鍵盤的模式,才使得研發(fā)智能鍵盤用以識別用戶身份成為可能。故選C項(xiàng)。
3.B 細(xì)節(jié)理解題。根據(jù)文章最后一句“Theteamhpestmakeittmarketinthenearfuture.”可知,研究者們希望這種智能鍵盤在不久的將來能夠面世,供消費(fèi)者使用。故選B項(xiàng)。
4.D 文章出處題。通讀全文可知,作者客觀介紹了佐治亞理工學(xué)院的研究者們新開發(fā)了一種鍵盤,它能根據(jù)用戶打字模式準(zhǔn)確識別出使用者。鍵盤使用常見的廉價(jià)材料,因此在成本和耐用性上都有很強(qiáng)競爭力,有望不久可以投入市場。故選D項(xiàng)。
【解題導(dǎo)語】本文為議論文。文章講述了孩子們每天花幾個(gè)小時(shí)看電腦和其他數(shù)碼設(shè)備,一些眼科醫(yī)生說這樣會(huì)增加“電腦視力綜合征”患者的數(shù)量。
5.B 細(xì)節(jié)理解題。根據(jù)第四段中的“Apersnwhusesanelectrnicdeviceblinksabutnethirdasmuchaswenrmallydineverydaylife.Andthatcanresultinthefrntpartftheeyedryingandntstayingprtectedlikenrmal.”可知,一個(gè)使用電子設(shè)備的人眨眼的次數(shù)是我們?nèi)粘Ｉ钪姓ＵＱ鄞螖?shù)的三分之一,眨眼能夠防止眼睛干燥,保護(hù)眼睛。故選B項(xiàng)。
6.C 細(xì)節(jié)理解題。根據(jù)第三段中的“Dr.Bnilla-Warfrdsayspartftheprblemisthatchildrenmaybemrelikelytpaynattentintearlywarningsignsthanadults.”可知,驗(yàn)光師博尼拉·沃爾福德說兒童比成年人的電腦視力綜合征情況嚴(yán)重是因?yàn)閮和瘸赡耆烁菀缀雎云湓缙诘陌Y狀。故選C項(xiàng)。
7.C 詞義猜測題。根據(jù)畫線詞后面的“”可知,長時(shí)間盯著屏幕看會(huì)造成視力疲勞,但是沒有證據(jù)表明它會(huì)對眼睛造成損傷。fatigue意為“疲勞”。故選C項(xiàng)。
8.D 主旨大意題。本文講述了孩子們每天花幾個(gè)小時(shí)看電腦和其他數(shù)碼設(shè)備,一些眼科醫(yī)生說這樣會(huì)增加“電腦視力綜合征”患者的數(shù)量。眼科醫(yī)生推薦了20/20/20規(guī)則:每隔20分鐘看20英尺外或更遠(yuǎn)的地方至少20秒鐘。故選D項(xiàng)。
Ⅱ.【解題導(dǎo)語】本文是說明文。文章介紹了幾點(diǎn)關(guān)于如何成功的建議。
1.F F項(xiàng)是對上文的strengths的舉例說明,且與下文的Maybeyu’llbecmeanautmechanic相呼應(yīng)。
2.B B項(xiàng)與上文的“Didyufailacurse?”并列,并與上文的fewmistakesaredisastrus相呼應(yīng)。
3.D 由下文塞西莉亞的例子可推斷,在某些方面的成功能使一個(gè)人具備成功人士的素質(zhì)和心態(tài),進(jìn)而在其他方面也獲得成功。
4.G G項(xiàng)中的whwerealsachievers與上文的Cecilia’sgradesimprved相呼應(yīng)。
5.E E項(xiàng)與上文的“I’vemetpeplefrmtpuniversitieswhhaveexperiencedunemplymentandevenhmelessness.”都是對本段主題句“Gettingintatpuniversity—ranyuniversity—willntguaranteesuccess.”的具體解釋說明。
Ⅲ.Dear Tm,
I’m glad t hear that yu are very interestinginterested in Guxue.Let me t give yu a simple intrductin t it.
Generally speaking,Guxue refers t the excellent traditinal Chinese culture,thatwhich includes philsphy,literature,histry,music,painting and s n.Guxue has been playing an increasingincreasingly imprtant part in China,especially fr themus students.Nt nly diddes it tell us hw t study,but it als teaches us hw t live.Mre and mre Guxue curses isare given in schls f different levels all ver China.
If yu want t get ∧a better understanding f Guxue,yu are welcme t China t learn it,feel it and enjy it.I’m sure yu’ll benefit frm living in tw different culturecultures.I’m lking frward t seeseeing yu sn in China.
Yurs,
Wang Kai

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