Duolingo English Test Practice Test 37

There is a small green notebook on the desk where visitors are invited to write their impres of the exhibition. Whenever prices rise faster than salaries, ordinary families are forced to cut back on holidays, restaurants, and ent. Photographers who capture wildlife must possess extraordinary patience, sometimes waiting motionless in freezing water for days to capt a single image. Fresh out of university, Kwame accepted an unpaid internship, hoping that it would eventually lead to a perma position. Driving through thick fog demands total concentration, so switch off the radio and keep a safe dist from the car ahead. One of the greatest challenges facing hospitals today is finding enough qualified staff to oper all their departments.

Coffee travels an enormous distance before it ever reaches a cup on your table. Farmers in tropical highlands pick the ripe cher by hand, often on steep slo that machines simply cannot reach. After drying and sort, the beans are shipped to roas thousands of kilometres away, where heat trans them from pale seeds into the frag beans we recognise. Fair trade progr try to make sure that the grow, who take on most of the risk from weather and price swi, receive a larger and stea share of the final price.

In 1901, divers exploring an ancient shipwreck near the Greek island of Antikythera recovered a corroded lump of bronze that at first attracted little attention among the statues and jars nearby. Decades later, closer study revealed that the lump contained dozens of tiny, precisely cut gears, evidence of engineering far more advanced than anyone had Select…expectedexpectexpecting from the ancient world. Researchers eventually determined that the device had been used to track astronomical cycles, predicting eclipses and modelling the movements of the sun, moon and known planets. Inscriptions on its surface, painstakingly deciphered using modern imaging technology, describe the astronomical functions in remarkable detail. Whoever built it, sometime in the second century BCE, must have drawn on generations of accumulated mathematical and mechanical knowledge that has left almost no other physical trace. A wooden case, now lost, likely Select…protectedprotectprotecting the mechanism during transport. No comparably complex geared device is known to have existed again in Europe for well over a thousand years afterward, a gap that has Select…puzzledpuzzlepuzzling historians of technology ever since. Some researchers suspect it was one of several such devices, perhaps built in a workshop whose other creations were lost or destroyed. Modern reconstructions have confirmed that the mechanism's gear ratios accurately Select…modelmodelsmodelling the irregular motion of the moon across the sky.