21.  Firstly, go directly to the pertinent information we call for and ignore the ads and useless webs.

22.  The world around us presents a seamless web of physical and\

23.  Importantly, when children use the online education, they can learn something that is out of the books by the links which is on the side of the education web.

24.  Sometimes, we may find our private information is put on the web, and our computer may be attacked by disgusting virus or other disappointing things.

25.  Thousands of people get knowledge through the network, they only need to click the web, and they may attend a lecture from a world-famous professor.

26.  Such people are called web worms.

27.  In regard to our college students, web resources can be quite helpful, which can be applicable to everyday study.

28.  In regard to our college students, web resources can be quite helpful, which can be applicable to everyday study.

29.  Meanwhile, teenagers becoming web addicts is a kind of worldwide phenomenon.

30.  For instance, some students are addicted to web games and fall behind their classmates, which lead them to quit school.