1 . 阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
These days, it is not unusual for 10-to 12-year-olds to publish their own websites or for second and third graders 1 (begin)computer classes. At the same time, computer games are becoming increasingly popular as major publishing houses continue to develop 2 (education)computer programs for children in preschool. Also, technological know-how has become a 3 (require)for most jobs in an increasingly digital world, as the computer has become a common tool in most 4 (profession)
The Digital World is a set of volumes 5 aim to describe how digital systems influence society and help readers understand the nature of digital systems and their many interacting parts. Each volume in the set explores 6 wide range of material, explains the basic concepts of major applications of digital systems, 7 discusses the influences they have on everyday life. Because the number of possible topics 8 (be)practically limitless, we focus on a sample of the most interesting and useful applications and tools and explain the basic principles of technology. Readers 9 (encourage)to continue exploring the digital world with the guidance of 10 (we)Further Resources section featured in each volume.