Human memory is notoriously （眾所周知地） unreliable.Even people with the sharpest facial recognition skills can only remember so much.
It's tough to quantify how good a person is （1）atat remembering.No one really knows how many different faces someone can recall，for example，but various estimates tend to hover in the thousands – based on the number of acquaintances a person （2）may/mightmay/might have.
Machines aren't limited this way.Give the right computer a massive database of faces，and it can process what it sees – then recognize a face it （3）is toldis told （tell） to find – with remarkable speed and precision.This skill is （4）whatwhat supports the enormous promise of facial-recognition software in the 21st century.It is also what makes contemporary surveillance （監(jiān)控） systems so scary.
The thing is，machines sill have limitations when it comes to facial recognition.And scientists are only just beginning to understand what those constraints are. （5）To figureTo figure （figure） out how computers are struggling，researchers at the University of Washington created a massive database of faces – they call it MegaFace – and （6）testedtested （test） a variety of facial-recognition algorithms（算法） as they scales up in complexity.The idea was to test the machines on a database that included up to 1 million different images of nearly 7，000 different people – and not just a large database （7）featuringfeaturing （feature） a relatively small number of different faces，more consistent with what's been used in other research.
As the databases grew，machine accuracy dipped across the board.Algorithms （8）which/thatwhich/that were right 95% of the time when they were dealing with a 13，000-image database，for example，were accurate about 70% of the time when （9）facedfaced （face） with 1 million images.That's still pretty good，says one of the researchers，Ira Kemelmacher-Shlizerman. "Much better than we expected，" she said，
Machines also had difficulty adjusting for people who look a lot alike –either doppelgangers （長(zhǎng)相極相似的人），whom the machine would have trouble （10）identifyingidentifying （identify） as two separate people，or the same person who appeared in different photos at different ages or in different lighting，whom the machine would incorrectly view as separate people.
【考點(diǎn)】人與自我．
【答案】at；may/might；is told；what；To figure；tested；featuring；which/that；faced；identifying
【解答】
【點(diǎn)評(píng)】
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發(fā)布：2024/12/30 1:0:8組卷：4引用：1難度：0.5
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1．Most smart phones allow you to run location-sharing software that uses the phone's GPS capability to let friends and family know your exact location．There are lots of great uses for this technology．（1）
So make sure you're permitted to use an app or service，and pay attention to how you are using it．Here're some important points you may find helpful．
Choose what's best for you．Some location-sharing services are games that let you give a shout-out when you've turned up at a particular spot．（2）Still others continue to share your location until you change the setting．Be sure you know exactly how your service shares your location．
Know who your friends are．（3）This means people can search to see if you're online and add you as a friend．It's important to remember that sharing your location with people you've never met in real life is risky，so you should carefully manage friend requests and share your location only with people you know and trust．
（4）Some services automatically stop sending your location after a period of time，but others will send it forever-until you stop it．Review your contact list periodically and delete anyone to whom you no longer feel comfortable revealing your location．
Update parents．Location-based services are a great way for teens to let parents know where they are without having to call or text．（5）If you're heading home late at night，you can also use a service like Glympse to share your location as you drive，so they'll know if you have car trouble or get stuck in traffic．A．Check back often．
B．Keep sending your location．
C．However，these services are not for all children．
D．With its help，you can easily share your location with them．
E．Check-ins ease worries so they don't have to follow your every move．
F．Others show where you are all the time or for a period of time you set．
G．Some location services operate like Facebook，where you invite and accept friends．發(fā)布：2025/1/1 18:0:1組卷：7引用：4難度：0.7 -
2．Walk Out of the Comfort Zone and Try New Things For most high school students，free periods （課、節(jié)） are useless.From what I have seen，few do homework. （1）
.This makes it impossible for those who actually want to do work to complete any.As a senior next year，I think extra periods should be used to take optional subjects.
（2）.Now is the time for us students to choose a suitable one.We will experiment in different fields of study.We will never know if we are interested or talented in a subject if we don't try it.
In my 8th grade，I was told that I had to take an art class as a graduation requirement；so in the 9th grade I took Studio and Art.One of the projects was to build a clay pot，but I built mine incorrectly，so it broke in the kiln （窯）. （3）.Now I know for sure that I do not want to be an artist.However，the class was one of my favorites that year.I was able to try new activities and test my ability.
（4）!College is when we should focus on a specific major，but high school is when we have to figure it out.
Half of all college students change their major at some point.By doing that hundreds of dollars are wasted on classes that they would have never needed to take.So use our extra periods to find out what we want to do in college. （5）.
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B.We should find out what we are good at
C.I've avoided anything related to art since then
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E.I found out that I have no artistic ability at all
F.Walk out of our comfort zone and try new things
G.The classes we choose can influence us in the future發(fā)布：2025/1/1 18:0:1組卷：7引用：5難度：0.5 -
3．"Me".It's a small word with big meaning，and that meaning is as individual to each of us as the way we look.Through interviews，Dr Hart，a psychologist，was able to discover what "me" means to other people，and how they have learnt to（1 ）
the beauty in themselves.
Jade has become（2）to selfie apps to beautify herself.She spends hours every day （3）（ edit） her selfies，removing her freckles and enlarging her eyes so as to boost her （4）.Dr Hart says obsessive online photo editing indicates a（5）of self-confidence and a desire for attention.
In Anthony's case，things are different.He never cared about his （6）.He even wore identical trousers and shirts，which made his roommates （7）（ confuse ）.Dr Hart says it's true that inner beauty is very important but （8）beauty shouldn't be completely overlooked.
When it comes to Emma，she is （9）（ large ） than other girls，which bothered her.She tried every means possible to lose weight，which only resulted in pain and poor health，and finally she realized that her（10），mental and physical，is the most important thing.Dr Hart agrees with her一being healthy is beautiful.發(fā)布：2025/1/1 18:0:1組卷：8引用：2難度：0.5
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