Social networking is a tool used by people all around the world. Its _______ is to promote and aid communication._______, this type of technology might be doing more harm than good.

On these networking sites, users _______ post pictures of themselves and their friends. Teenagers, however, use this new technology in a way that could be _______. In this stage of their lives, they always _______ to impress their peers(同龄人). Teenagers attract attention through the interesting pictures they _______. In order to get the results they want, they try to get a reaction from controversial _______ of themselves. This adolescent need to be “_______” leads to lots of young girls and boys attempting to _______ one another by showing themselves drinking, smoking and partying.

With so many teens using social networking, it has become easier to ____________ one another. Cyber bullying (欺凌) is a form of bullying that is only done through the web. Bullying is ____________ to deal with in person, but the situation is even severer over the Internet. When ____________ comments are posted on a person’s page, anyone can see them. However, on the networks no one is there to ____________ the attack. This makes it harder for a ____________ to find the attacker.

With the constant use of these social technologies, fewer people are communicating ____________. Many people are becoming ____________ due to the lack of personal communication. What’s more, without person-to-person communication we will ____________ our language skills and have trouble speaking in public. Normal debates will become more difficult because we are not ____________ to read one another’s body language.

Social networking aids long-distance communication greatly ____________ there must be a stopping point. It cannot become our main ____________ of communication.

Door-to-door food delivery service has become increasingly popular in cities due to the fast development of e-commerce and the fast-paced life in China. As food delivery is extremely __________ in China, it creates large amounts of waste due to the plastic containers, bags, and chopsticks that come with each order. This in turn has __________ great environmental concerns for the waste packaging materials. We have therefore estimated and predicted the volume of food delivery packaging waste in China. The results show that the total amount of packaging waste __________ from 0.2 million metric tons in 2015 to 1.5 million metric tons in 2017.

Over packaging is also a concern. The food delivery packaging is not the __________, the better. Instead, it is the more environmental friendly, the better. Therefore, it is high time that regulations were __________ to stop restaurants and companies from spending too much on unnecessary packaging and wrapping. Also, smart policy suggestions should be provided to __________ the pressing issues, particularly using the Reduce, Reuse and Recycle environmental friendly practices.

As the largest city in China, Shanghai has an important role in innovating and contributing to a global solution to the problem of waste. With over 24 million people living in Shanghai, materials sustainability, particularly that of plastics, is a great issue. __________, delivery companies like Saucepan have begun to __________ the plastic usage of the food delivery in Shanghai by using biodegradable(可降解的) packaging in the delivery process. __________, it encourages consumers to both recycle their plastic bags and stay in the business by rewarding customers for every 10 used bags that they return to the company.

The more delivery services that promote sustainability(可持续性), the more suppliers will see that there is a market for environmentally-friendly products. The food delivery service plays a role in the creation of waste in China, and innovating in this specific context can make a big __________ in the new plastics economy.

Kids are going all over the world without ever leaving their school. They are using their computers. A school in_______could be the most wired school in America. They are wired to the Internet through their_______.

Thirty students are able to_______the Internet every day. The kids are_______the grades of kindergarten and fifth grade. The teacher says that it is hard to get them_______from the computers. They do not even want to have a rest.

The Internet has_______the world to many people. Now students can go to any library_______earth. They can get information, and they can visit a child in another country.

Laura Bacon likes to_______other students. She’s going to Peggy’s page. Peggy is a student in London, England. She puts her own home page on the Internet. It_______pictures of Peggy, her school, her mum, her dad and her friends. Laura can________her mails, too.

A scientist helped to wire the schools. He said, “There is a plan to________twelve thousand California schools to the Internet.”

Wiring schools in California will________a lot of money. It needs the________of the volunteers or schools will not be able to________it. They think that it will cost as much as fifty billion dollars.

Some people say that the money should be spent on teachers________computers. Other people say that it would be worth it to wire all of the classrooms