Tom felt sure he would get the post, but he was never even considered for it. That was a smack in the eye for him.

Researchers have discovered that dolphins are able to mimic human speech.

This reflects the priority being attached to economic over political activity, partly caused by a growing reluctance to enter a calling blighted by relentless publicity that all too often ends in destroying careers and reputations.

One out of five bridges in the United States is outmoded .

The prisoner________that he had assaulted a policeman.

So engrossed in his efforts would Gaugin become that he barely noticed the passing of time.

In the last few years, the________of regular folks going under the cosmetic knife skyrocketed.

Because it is not a serious problem, we are not necessary to take strict measures against the student.

The word " wrath " in The Grapes of Wrath by the Nobel prize winner John Steinbeck probably means:

The ocean bottom — a region nearly 2. 5 times greater than the total land area of the Earth — is a vast frontier that even today is largely unexplored and uncharted. Until about a century ago, the deep-ocean floor was completely inaccessible , hidden beneath waters averaging over 3, 600 meters deep. Totally without light and subjected to intense pressures hundreds of times greater than at the Earth's surface, the deep-ocean bottom is a hostile environment to humans, in some ways as forbidding and remote as the void of outer space . Although researchers have taken samples of deep-ocean rocks and sediments for over a century, the first detailed global investigation of the ocean bottom did not actually start until 1968, with the beginning of the National Science Foundation's Deep Sea Drilling Project (DSDP). Using techniques first developed for the offshore oil and gas industry, the DSDP's drill ship, the Glomar Challenger, was able to maintain a steady position on the ocean's surface and drill in very deep waters, extracting samples of sediments and rock from the ocean floor. The Glomar Challenger completed 96 voyages in a 15-year research program that ended in November 1983. During this time, the vessel logged 600, 000 kilometers and took almost 20, 000 core samples of seabed sediments and rocks at 624 drilling sites around the world. The Glomar Challenger's core samples have allowed geologists to reconstruct what the planet looked like hundreds of millions of years ago and to calculate what it will probably look like millions of years in the future. Today, largely on the strength of evidence gathered during the Glomar Challenger's voyages, nearly all earth scientists agree on the theories of plate tectonics and continental drift that explain many of the geological processes that shape the Earth. The cores of sediment drilled by the Glomar Challenger have also yielded information critical to understanding the world's past climates. Deep-ocean sediments provide a climatic record stretching back hundreds of millions of years, because they are largely isolated from the mechanical erosion and the intense chemical and biological activity that rapidly destroy much land-based evidence of past climates. This record has already provided insights into the patterns and causes of past climatic change — information that may be used to predict future climates.

Even though the main source of________ exposure for a majority of the human population is the sun, the artificial tanning from sun beds contributes significantly to the total UV risk.

The graduate committee must be in full accord in their approval of a dissertation.

As an English major student , I think business English is more practical than other fields .

It is rumored that Mr. Smith, the grandson of the founder of the university and a professor of philosophy, will be________as president in March.

That gossip concerning them exploded at length after it had been simmering for a long time.

Several theories of evolution had historically preceded that of Charles Darwin, although he expounded upon the stages of development.

This air crash which was suspected to be plotted by international political terrorists led to the stop of the diplomatic relations between the two countries.

The more people you know, the less you have time to see them but you can always reach them on the Internet.

Whenever we hear of a natural disaster, we feel sympathetic to the people to be affected .

Some people think more of animals than will of children.