So how do driver-less cars work? They have sensors（传感器）all around which can detect other cars and obstacles on the road. Sensors on the wheels also help when     1    , so the car knows how far it is from the outside of the road or other parked cars. Road signs are read by     2    , and satellite navigation systems are used so the car knows how to get to your destination. All you have to do is type in the address! Finally, a central computer system takes in all the information it receives from the sensors and cameras and     3     this to work out when to speed up, brake and go. Sound like your idea of heaven? Sitting back, looking out of the windows and even watching a film or reading a book while     4     would be possible with this new technology.

People with social anxiety can easily communicate with family members and close friends. But meeting     1     friends, talking in a group, or speaking in public can make them very shy and nervous.

It’s natural to feel nervous or shy in front of others at times. But when people feel so anxious that it     2     them from speaking up or communicating with others most of the time, it’s probably more than shyness. It may be an anxiety condition called social anxiety (焦虑).

Dealing with social anxiety takes patience, courage to     3     fears and try new things. It takes a commitment (保证) to go forward rather than back away when feeling shy.

Each small step forward helps build enough confidence to take the next small step.     4     shyness and fears begin to melt, confidence feelings build.

But how to be social and improve your social     5    ? People can follow these ways.

Work on your self-worth. Stop     6     of things that make you down. Do your best to stop comparing yourself     7     others and give yourself a little self-love.

Start smiling and use a welcoming body     8    . Remember to give others a hug when you meet     9    . And keep looking in one’s eyes when he is talking something to you instead of looking at your phone all the time.

Just be yourself. Take every opportunity to hang out with     10     new people and those you like.

Now we can easily see people phubbing(低头族). Yes, "phubbing" is a newly popular lifestyle among people. We can see the same situation almost     1    , in the subway, restaurant or on the street. People are watching their cell phones concentrately     2     than watching their way while walking. Now, we can even look     3     this word in dictionary called Australian National Dictionary.

From family dinner table to friends parties, people     4     stop checking their e-mail, WeChat and so on. It's said that, during the Spring Festival dinner, all the grandchildren were looking at their cell phones without     5     a word to their grandparents. The old people felt sad. Finally they got     6     and left the table. Also, we find that more and more people like     7     photos of the food as soon as it's put on the table. "My skill of taking photos has     8     much but my interest in food has dropped a lot" said a 25-year-old girl. Some people even can't     9     asleep without checking his cell phone or iPad.

Let's put down our cell phones before the problem of "phubbmg" gets     10    . After all, we have many interesting things to do. We really should drop the bad habits and enjoy ourselves in our daily life.

As we all know, there have been     1     talent shows on TV since Super Girls than before. Everyone thinks that the programs bring great fun to our daily life and we get     2     by watching different kinds of shows. They show their talents by     3    , dancing, doing magic and so on. In this way such programs give a free way to anyone who wants to show his     4     talent on TV and make more people     5     hard to make their dreams come true. And the     6     always get good prizes. When we watch the shows on TV, we usually play a role in     7     the winner.

Though these shows bring     8     lots of pleasure, they cause many bad     9     especially for teenagers. For example, many students have spent too much time and money     10     them. It affects their studies seriously.