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Ex. 27. Modal verbs. Read and translate the sentences
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1. An antivirus program should be run every time you turn on your computer.
2. All program instructions must be stored within the central processing unit.
3. Memories may be classified as electronic or electromechanical.
4. All the files on the computer can be lost if the system suddenly crashes.
5. It should be said that even in a complex digital system there are only a few basic operations, which must be performed.
6. In the late 1940s, computers were built so that programs could be stored in internal memory and could be easily changed.
7. When you insert a blank disk into a disk drive, it should be formatted before information is recorded onto it.
8. Parts of an operating system may be permanently stored in a computer’s read-only memory (ROM).
9. Surround-sound [объёмное звучание] capabilities can be added to older video installations.
10. Data, which is put into the computer for processing should be coded into 1s and 0s.
Ex. 28. ACTIVE OR PASSIVE? Use the verbs in the required form.
Model: This software __ over the Internet. [can/to buy] ↔ This software can be bought over the Internet. You __ this software over the Internet [can/to buy] ↔ You can buy this software over the Internet.
| 1. Everything in the computer’s memory ___ onto compact disks. 2. Before use, the battery ___. 3. The computer ___ numerical computations and follow instructions at an extremely high rate but it ___ itself. 4. The program is freeware and ___ from their website. 5. To writeWindows-based programs, programmers ___ about changes in the system well in advance. 6. The information ___ into the computer for processing. 7. Thanks to the WWW, the user ___ all the necessary data quickly. 8. The cards ___ alphabetically. 9. The CPU ___ the nerve center of any digital computer system. 10. You ___ a web search for articles about marketing. | can / to copy must / to charge can / to perform cannot / to program may / to download must / to know should / to feed may / to find must / to store can / to call should / to do |
Дата публикования: 2014-11-18; Прочитано: 350 | Нарушение авторского права страницы | Мы поможем в написании вашей работы!
