Unit 3 Inventors and inventions Using language课时作业

第一节：完形填空(共20小题；每小题1.5分，满分30分)

　　阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项。

　　Every day, more than one billion people connect with each other using social media (社交媒体). The main positive effect (积极的效果) of social media is also its __1__： connection. Modern life can be very __2__. Many people work long hours. Other people live far away from family and friends in __3__ cities or countries. And it can be __4__ to stay connected with the people that are important to us. With social media, people everywhere can __5__ with each other.

　　It can also help people make new friends. Often, these are friends they would not have met __6__ social media. Suppose you have a very special interest. __7__， you would not meet very many people who __8__ your interest! But through social media, you can __9__ people all over the world with the same interest.

　　Social media can also help people __10__ news about big world events. This lets people all over the world act more __11__. This is very true when an earthquake breaks out.

　　It is __12__ that social media has many positive effects. But some scientists __13__ people that it can also be harmful (有害的). Often, when people put things on social media, they only __14__ the best things about their lives. They __15__ the fun things they are doing or show pictures that make them look __16__. So, when people look at these things, they are only seeing __17__ of their friends' lives. This can make them feel less __18__ with their own lives. And, they can begin to feel envy (嫉妒) __19__ their friends' lives look so perfect.

　　Anyway, social media has become a part of human life. You can use it or not use it as much as you __20__. But we may need to think more carefully about how we use it and how it makes us feel.

　　语篇解读：本文是议论文。文章主要论述了社交媒体的利与弊。

　　1．A.interest B．purpose

　　C．chance D．method

　　解析：选B　根据该空后的"connection"以及该段接下来具体介绍社交媒体将世界各地的人连接在一起可知，社交媒体的主要好处也是其"目的(purpose)"所在。

　　2．A.busy B．short

　　C．cool D．strange

解析：选A　根据下一句"Many people work long hours."可知，现代生活很"忙