Brooke wanted a dollhouse and some sugar cookies． So the 6﹣year﹣old asked Alexa to get them． Alexa wasn't her mom or babysitter． It was a voice﹣activated home assistant powered by AI（人工智能）．And it made Brooke's wishes come true． A few days later， much to her parents' surprise， a﹩170 dollhouse and four pounds of cookies showed up． They ate the cookies and gave away the dollhouse to a local hospital．And that's not the end of the story． When a news reporter told the story of what happened on TV， Alexa devices（设备）in many listeners' homes woke up and tried to order dollhouses!

    Alexa isn't the only AI willing to serve you． Apple HomePod has Siri， Google Home has its Assistant， and the upcoming Galaxy Home device will have Bixby． People who

have these devices use them mainly for listening to music， checking the weather， and setting timers． According to a report from The Information， nowadays voice shopping is rare． But many scientists predict

a boom（增长）in voice shopping in the near future． Is that a good thing？

    ▲． You can shout out an order as soon as you think of it， even if you are cooking，cleaning， or driving． In addition， people with disabilities who are unable to use a keyboard or mouse can shop without any help．

    But voice shopping has its disadvantages． Unwanted dollhouses aren't the biggest problem． It's usually very easy to cancel an order or return products． The thing that worries some people is that these assistants are always listening． They have to be able to respond when you want them． So they listen for "Alexa" or "OK Google" or another order． When they hear it， they start recording the conversation． Some have worried about what happens shopping habits？ And what if someone hacks（入侵） the device？ The CIA found a way to hack smart TVs to turn them into spies that listen all the time． Others could do the same with any smart device．

    What do you think？ Are you ready to start voice shopping？

（1）From the passage， we know that Alexa　　．

A．can look after the baby

B．can cook delicious food

C．is a toy doll sold online

D．is one kind of AI device

（2）The underlined word "rare" in Paragraph 2 probably means　　．

A．unusual

B．expensive

C．harmful

D．impossible

（3）Which of the following is the best to fill in the "▲" in Paragraph 3？　　

A．Convenience is the main advantage of voice shopping

B．The cost of voice shopping is lower than other ways

C．The popularity of voice shopping is increasing

D．The technology of voice shopping needs improving

（4）Paragraph 4 mainly tells us that　B　 when people try voice shopping．

A．AI sometimes forgets people's orders

B．personal information might be hacked

C．It's difficult to cancel or return products

D．the needs for products can't be satisfied