Choose the correct preposition.

Date: 2015-10-07; view: 669.

Match each word with the correct preposition or prepositions from the box. Check your answers in the text.

1. Air in most urban areas is made up of an array of contaminants, some gases, some

microscopic particles, all containing avariety (for/of) chemical ingredients.

2. The Ringhals power station consists (of/on) four reactors in southern Sweden, near

Gothenburg.

3. The paper is impregnated (in/with) mineral oil to provide more insulation.

4. No, you won't get shocked - the carbon fiber carrying the charge will be sandwiched

and insulated (with/on) other composite materials.

5. For years, engineers have studied the possibility (of/upon) all those car batteries being used

to store energy.

6. Because it depends (upon/in) radio signals moving through the air, there's a lot that can

interfere.

7. Enfucell's batteries are made of low-cost, environmentally friendly materials based (in/on)

zinc and manganese dioxide with zinc chloride as an electrolyte.

8. Apple has an exclusive agreement to useliquid-metal technology (in/of) consumer

electronics.

9. The group's Web site was knocked out of service for extended periods Sunday as

a result (with/of) the attacks.

10. Some media and entertainment companies useoptical discs (of/for) video archiving.

11. To seal off reactor buildings, engineers are planning to wrap them (with/on) polyester

sheets stretched over steel frames.

12. As for reading your e-mail, it depends (upon/for) what e-mail program he's running and

whether it can open mail in the format you are sending.

5. Complete conditional sentences by putting the verbs in brackets in the correct forms.

1. If we ______ (have) enough funds to buy hand-held computers for the college, we would be able to attract more students to come here.

2. If it is inappropriate to have state-of-the-art equipment installed in this building, we ______ (take) it back to the suppliers.

3. If he wasn't such a technophobe, he ______ (get on) much better with his kids as they are mad about all types of technology.

4. If the computer software ______ (be) more user-friendly, we wouldn't have had as many problems as we did.

5. Provided that the new equipment is efficient, we ______ (be able to) increase productivity

within a few weeks.