1 . Even if vaccination (接种疫苗) is a powerful defense against disease, some voices are against it. In a recent letter, the American Medical Association (AMA) urged big social media including Amazon, Facebook and Google to take action to defend medical science on their platforms.

It said that vaccine -preventable diseases that do harm to the public health like measles (麻疹) are on the rise. Measles cases worldwide jumped more than 30% in 2017 compared to 2016, with the largest increases seen among nations in the Americas, Europe and the Eastern Mediterranean. Vaccine-preventable diseases are increasing largely because many people are unwilling to get vaccinated. And some of these people even encourage others to refuse vaccination. So this year, the World Health Organization (WHO) declared the anti-vaccination movement a top 10-health threat.

“Vaccination is one of the most cost-effective ways of avoiding disease—it currently prevents 2-3 million deaths a year, and a further 1.5 million could be avoided if global coverage of vaccinations improved,” WHO said.

A research article published in 1998 in a medical journal suggested a link between a vaccine and the development of autism (孤独症) in young children. Although the research has been suspected and many other studies have proved that vaccinations do not cause autism, the article is still impressing people strongly today. Another reason for the growth in the anti-vaccination movement is widespread misinformation on social media, which can turn people against vaccination.” If a concerned parent consistently sees information in their Newsfeed that casts doubt on the safety of vaccines, it could cause them to disregard the advice of their children’s physicians and public health experts and refuse to follow the recommended vaccination schedule. So access to true information about vaccine safety is badly needed.

I recommend that you talk to your friend about his     1    . It is not unusual for     2     of your generation to be attracted to computer games and the online world. But spending too much time online is     3     and makes it very difficult to focus on other things in life. Some students even become     4     to the Internet and cannot concentrate on school and family life. I think you should     5     your friend to try new hobbies. Why not discuss the problem together? I am sure he will listen to you since you are his good friend.

4 . By now, we are all aware that social media has had a tremendous influence on our culture, in business, on the world-at-large. Social media websites revolutionized the way people communicate and socialize on the Web. However, aside from seeing your friend’s new baby on Facebook, or reading about Justin Bieber’s latest conflict with the law on Twitter, what are some of the real influences?

Social networks offer the opportunity for people to re-connect with their old friends and acquaintances, make new friends, share ideas and pictures, and many other activities. Users can keep pace with the latest global and local developments, and participate in campaigns and activities of their choices. Professionals use social media sites like LinkedIn to enhance their career and business development. Students can work together with their peers to improve their academic and communication skills.

Unfortunately, there are a few downsides too to social networking. If you are not careful, immoral people can target you for cyber bullying and disturbance on social sites. School children, young girls, and women can fall victim to online attacks which can create tension and suffering. If you are a victim of cyber bullying, do not take it lying down, but try to take appropriate legal action against the attacker.

Many companies have blocked social networks as addicted employees can distract themselves on such sites, instead of focusing on work. In fact, studies show that British companies have lost billions of dollars per year in productivity because of social media addiction among employees.

Also, what you carelessly post on the Internet can come back to trouble you. Revealing (泄露) personal information on social sites can make users vulnerable (易受伤害的) to crimes like identity theft, stalking, etc. Many companies perform a background check on the Internet before hiring an employee. If a potential employee has posted something embarrassing on social media, it can greatly affect their chances of getting the job. The same holds true for our relationships too, as our loved ones and friends may get to know if we post something undesirable on social networks.

Social media has its advantages and drawbacks as each coin has two sides. It is up to each user to use social sites wisely to enhance their professional and social life, and exercise caution to ensure they do not fall victim to online dangers.

A．	B．
C．	D．

5 . Kids and science seem to be made for each other!

The basic science is a combination of thought and experiment called the scientific method. It’s where you start with an idea, create a way to prove or disprove your idea, and show what you learned based on facts. Learning to follow this process helps you think logically and carefully. These important thinking skills can be used in many areas of study. To give a child practice with these thinking skills is like giving vitamins to a developing mind.

One of the greatest things we can teach our children is to love learning. Learning science is a great way to do so. Children are easy to be interested in science. Because much of science is hands-on, it attracts most children. Nothing makes a child sit up and take notice like the “WOW!” of a great science showing.

Science opens doors to many subjects at school. Building love for science can be helpful in other areas of study. For example, one cannot love science for very long without becoming good at its language-math! So science encourages children to study math. An interest in science is an interest in how things were once understood compared to how they are understood now. Thus studying science lends itself easily to studying history. And after you do an experiment, you need to write a lab report. Therefore, writing becomes an important part of science.

Science is the basic thing for much of our life. The science of farming shows how our food is produced; biomedical science keeps us healthy; even our beds these days are designed according to scientific facts. We almost eat, sleep and breathe with the help of science! When we prepare the next generation of voters, creators and policy makers, it is important to make sure they are not only comfortable but also good at science.

7 . A large number of India’s poor kids receive little or no education. Even if they enter a formal school, their dropout rates are very high. Door Step School (DSS) aims to bridge the huge gap between these kids and education.

True to its name, Door Step School sets up a school right at the doorstep of kids who can’t get formal education due to a variety of reasons.

The team at DSS follows a direct model—they set up a classroom in any area, where they foresee the greatest need. They look for proper locations, and after making sure that enough resources are in place, they accept students in the area. DSS provides lessons of different levels. The organization even tries to provide classes in the local language, or whatever the students choose.

Another interesting project of DSS is a school on wheels. It uses a bus that has been changed into a classroom, which holds about 25 kids at a time.

Since it was started in 1988, Door Step School has spread from Mumbai to the neighbouring city of Pune in Maharashtra, covering a larger area and a number of kids. Now DSS has a team of more than 1,000 volunteers and teachers who change more than 70,000 lives each year.

DSS doesn’t end at kids. The organisation educates parents on the importance of sending their kids to school. Its efforts have brought education to thousands of students in the last two decades. Their belief in education for all has not only changed children’s lives but also continued the fight against one of the biggest problems India faces. All children have the right to an education, and DSS is providing just that.