Javed Khan, of children's charity Barnardo's, said: ＂It's vital that new compulsory age-appropriate relationship and sex education lessons in England should help equip children to deal with the growing demands of social media．

＂It's also hugely important for parents to know which apps their children are using．＂

65．Why did some secondary school students feel too much pressure?

A．They were not provided with adequate equipment．

B．They were not well prepared for emotional risks．

C．They were required to give quick responses．

D．They were prevented from using mobile phones．

66．Some social app companies were to blame because ．

A．they didn't adequately check their users' registration

B．they organized photo trips to attract more youngsters

C．they encouraged youngsters to post more photos

D．they didn't stop youngsters from staying up late

67．Children's comparing themselves to others online may lead to ．

A．less friendliness to each other B．lower self-identity and confidence

C．an increase in online cheating D．a stronger desire to stay online

68．According to Life in Likes, as children grew, they became more anxious to ．

A．circulate their posts quickly B．know the qualities of their posts

C．use mobile phones for play D．get more public approval

69．What should parents do to solve the problem?

A．Communicate more with secondary schools．

B．Urge media companies to create safer apps．

C．Keep track of children's use of social media．

D．Forbid their children from visiting the web．

70．What does the passage mainly talk about?

A．The influence of social media on children．

B．The importance of social media to children．

C．The problem in building a healthy relationship．

D．The measure to reduce risks from social media．

We've all been there：in a lift, in line at the bank or on an airplane, surrounded by people who are, like us, deeply focused on their smartphones or, worse, struggling with the uncomfortable silence．

What's the problem? It's possible that we all have compromised conversational intelligence．It's more likely that none of us start a conversation because it's awkward and challenging, or we think it's annoying and unnecessary．But the next time you find yourself among strangers, consider that small talk is worth the trouble．Experts say it's an invaluable social practice that results in big benefits．

Dismissing small talk as unimportant is easy, but we can't forget that deep relationships wouldn't even exist if it weren't for casual conversation．Small talk is the grease(润滑剂) for social communication, says Bernardo Carducci, director of the