Translate the following sentences paying attention to degrees of comparison.

Date: 2015-10-07; view: 550.

GRAMMAR FOCUS

Fill in the correct prepositions, translate the phrases, then choose any five items and make up the sentences of your own.

Device

Wear

Run

Branch

Mean

Frame

1) a number ___ different arrangements; 2) to install ___ the radiators; 3) to pass ___ holes; 4) to cut ___ the top of the joists; 5) high level feed pipe ___ fall pipe; 6) to install ___ above; 7) to run the feed pipes ___ the top of the wall ___ the ceiling ___ fall pipes; 8) to run ___ the boiler and return ___ the boiler; 9) radiator connections made ___ the same pipe; 10) to rise ___ the radiator displacing cooler water back ___ the pipe; 11) to be fitted ___ a single pipe loop; 12) because ___ the restriction; 13) a pump ___ domestic use; 14) ___ the return side; 15) due ___ internal sediment; 16) to be prone ___ wear.

1) The first radiator gets hotter than the second one etc. and the last radiator will be considerable cooler as the water will have given up most of its heat to the previous radiators along the pipe run. 2) The more radiators fitted, the greater the cooling between the first and last radiators. 3) Normally the main pipes to and from the boiler are large (at least 22mm) and smaller pipework (15mm) is branched off to feed a number of radiators. 4) The longer the run, the fewer radiators. 5) The smaller pipes contain less water so less heat is lost along each pipe run. 6) This pump is more prone to wear. 7) The greater the difference in temperature between the heat source and sink, the lower the coefficient of performance far any heat pump.