题目内容：

In February, 2015, a South Korean woman was sleeping on the floor when her robot vacuum ate her hair, forcing her to call for emergency help. It surely isn’t what Stephen Hawking warned us that intelligent devices “mean the end of the human race”. But it does highlight one of the unexpected dangers of inviting robots into our home.

There are many examples of intelligent technology going bad, but more often than not, they involve cheating rather than physical danger. Meanwhile, increasing evidence suggests that we, especially children, tend to tell our deepest, darkest secrets to human robots. So how do we protect ourselves from giving-away code?

Once you’ve invited a robot into your home, you need to manage your expectations. Movies and marketing may have told us to expect deep interaction with robots friends but we’ve still got a long way to go before they are as socially aware as described. Given the gulf between expectation and reality, it’s important to avoid being tricked.

The message is clear: as robots became increasingly connected to the internet, and able to respond to natural language, you need to especially cautious about figuring out who or what you are talking about.

We also need to think about how information is being stored and shared when it comes to robots that can record our every move. Some recording devices may have been designed for entertainment but can easily be adapted for more dangerous purposes. Take Nixie, the wearable camera that can fly off your wrist at a moment’s notice and take shots around you in the air. It doesn’t take much imagination to see how such technology could be taken advantage of.

If the technology around us is able to record and process speech, images and movement, or listen secretly to us, what will happen to that information? Where will it be stored? Who will have access?

So, what is the safest way to welcome robots into our homes, public spaces, and social lives? We should be cautiously optimistic that intelligent machines could become enriching companions, while acknowledging that we need to determine strict boundaries for robots. There should be someone to turn to should your robot commit a crime, steal your card... or try to eat your hair.

1.The hair-eating story in Paragraph 1 is intended to         .

A. introduce the topic of the discussion

B. show the poor quality of the product

C. appeal to us to take pity on the victim

D. warn us to keep far away from vacuum

2.According to the writer, it is wise to         .

A. put a cautious trust in robots

B. make robots more socially aware

C. have deep interaction with robots

D. tell our secrets to robots straightly.

3.The underlined word “gulf” in the third paragraph is closest in meaning to         .

A. trust    B. distance

C. technology    D. advantage

4.The writer’s attitude to our complete trust in robots can best be described as         .

A. positive    B. objective

C. critical    D. pessimistic