Since the popularity of smartphones, people spend lots of time on their phones, either messaging other people,   (1)   news, or playing games.   (2)   I think cellphones have made life more   (3)  , I don’t think spending a lot of time on cellphones is a good idea.

First, spending too much time on cellphones may   (4)   cancer. Scientific studies have   (5)   that low levels of radiation are given off from the batteries(电池) of cellphones. Not only that, but phones are constantly using microwaves to send and   (6)   information. Since many people use their cellphones near their heads, long time exposure could eventually lead to some very   (7)   and unhealthy effects.

Secondly, when people spend too much time on their cellphones, they   (8)   on the things going on around them. This has been proven over and over again by   (9)   who use their phones while in their cars. This has been such a major cause of car   (10)  , because drivers are too distracted by their phones to   (11)   the road, that most states in the U.S. have banned the   (12)   of cellphones while driving. There are also other cases showing how using cellphones can  (13)   people to miss out on the things around them. For example, I went hiking with a friend a few weeks ago. She was so   (14)   to her cellphone the whole time that she missed out on all the   (15)  things we saw on the mountains, and didn’t get a   (16)   to experience the same awe(敬畏) of nature as I was able to experience.

Lastly, spending too much time on cellphones makes people forget how to have normal conversations.   (17)  , when people use text messaging, they use a form of shorthand known as “Netspeak” to   (18)   on the size of messages and make typing them on small keyboards fast and easy.   (19)   this, many people forget how to spell and use grammar   (20)