When the hard drive on Melisa Grove’s computer failed, she faced the possibility of lo

sing 7,000 Word documents, 600 spreadsheets, hundreds of PowerPoint presentations and 12 years of federal grant applications. “My PC clicked and I knew, uh-oh, and the computer was dead,” she recalled.

You’ve probably had that feeling. And you undoubtedly have heard the warning “Back up your data or else.” For Ms. Grove, the director of the Legacy Counseling Center, a nonprofit support organization in Dallas for people with AIDS, the story had a happy ending because she had backed up her data on a remote computer—what is commonly called “in the cloud.” With copies of everything, she could restore all her files.

A growing number of companies now offer these cloud-based backup services. Two of the best-known, Carbonite and Mozy, offer similar services with different prices, while Backblaze combines many of the services of Carbonite and Mozy. It offers unlimited backup for $5 a month per computer, and also backs up attached hard drives. If your computer’s drive crashes, you can either download the data or receive a DVD for $99 or hard drive by overnight mail for $189. Backblaze’s backup tool is one of the easiest to use: it just backs up all data files and once completed, backs up new files on a continual basis backups of deleted files, as with most services, are erased after 30 days.

6. Meliss Grove may lost her 7,000 Word documents, 600 spreadsheets and other files, because（）.

A. She isn’t careful about the files when she reads them

B. She doesn’t like these files

C. She didn’t know how to use a computer

D. Something wrong with the computer happened

7. What does the word “that feeling” in the second paragraph mean？（）

A.Melissa Grove is not happy because she lost her computer

B.She made a call to her friend and told them that she had lost her files

C.The experience that the PC is dead and the files may get lost

D.She doesn’t like her PC, because the PC

8. What do we know about the cloud-based backup services in America？（）

A.Only two companies, Carbonite and Mozy offer the services

B.Carbonite has better service than Mozy does

C.Backblaze combines many of the services of Carbonite and Mozy

D.Both A and B

9. What’s result of Ms. Grove’s files？（）

A.She lost all her files in the PC, because it’s dead

B.We have no idea about her files

C.She could restore all her files for the cloud backup

D.They were lost and couldn’t get restored

10. What does“in the cloud”mean？（）

A.It means that we can see a cloud when we use computers

B.It means distant devices that can backup the files

C.A kind of service that help people use PC

D.It’s going to rain if you see a cloud