In his 1979 book, The Sinking Ark, biologist Norman Myers estimated that (1) of more than 100 human-caused extinctions occur each day, and that one million species (2) lost by the century’s end. Yet there is little evidence of (3) that number of extinctions. For example, only seven species on the (4) species list have become extinct (5) the list was created in 1973.
Bio- (6) is an important value, according to many scientists. Nevertheless, the supposed (7) extinction rates bandied about are achieved by multiplying unknowns by (8) to get imponderables.
Many estimates, for instance, rely a great deal on a "species-area (9) ", which predicts that twice as many species will be found on 100 square miles (10) on ten square miles. The problem is that species are not distributed (11) , so which parts of a forest are destroyed may be as important as (12) .
(13) , says Ariel Lugo, director of the International Institute of Tropical Forestry- in Puerto Rico, "Biologists who predict high extinction rates (14) the resiliency of nature. "
One of the main causes of extinctions is (15) According to the Consultative Group on International Agricultural Research, what destroys (16) trees is not commercial logging, but "poor farmers who have no other (17) for feeding their families than slashing arid bunting a (18) of forest".
In countries that practice modern (19) agriculture, forests are in no danger. In 1920, U.S. forests covered 732 million acres. Today they cover 737 million. Forests in Europe (20) from 361 million to 482 million acres between 1950 and 1990.

A:capacity B:occupation C:opportunity D:option

Most worthwhile careers require some kind of specialized training. Ideally, therefore, the choice of an (1) should be made even before the choice of a curriculum in high school. Actually, (2) , most people make several job choices during their working lives, (3) because of economic and industrial changes and partly to improve (4) position. The "one perfect job" does not exist. Young people should (5) enter into a broad flexible training program that will (6) them for a field of work rather than for a single (7) .
Unfortunately many young people have to make career plans (8) benefit of help from a competent vocational counselor or psychologist. Knowing (9) about the occupational world, or themselves for that matter, they choose their lifework on a hit-or-miss (10) .Some drift from job to job. Others (11) to work in which they are unhappy and for which they are not fitted.
One common mistake is choosing an occupation for (12) real or imagined prestige. Too many high school students-or their parents for them-choose the professional field, (13) both the relatively small proportion of workers in the professions and the extremely high educational and personal (14) . The imagined or real prestige of a profession or a "white collar" job is (15) good reason for choosing it as life’s work. (16) , these occupations are not always well paid. Since a large proportion of jobs are in mechanical and manual work, the (17) of young people should give serious (18) to these fields.
Before making an occupational choice, a person should have a general idea of what he wants (19) life and how hard he is willing to work to get it. Some people desire social prestige, others intellectual satisfaction. Some want security, others are willing to take (20) for financial gain. Each occupational choice has its demands as well as its rewards.

A:identification B:entertainment C:accommodation D:occupation

Most worthwhile careers require some kind of specialized training. Ideally, therefore, the choice of an (1) should be made even before choice of a curriculum in high school. Actually, (2) , most people make several job choices during their working lives, (3) because of economic and industrial changes and partly to improve. (4) position. The "one perfect job" does not exist. Young people should (5) enter into a broad flexible training program that will (6) them for a field of work rather than for a single (7) .
Unfortunately many young people have to make career plans (8) benefit of help from a competent vocational counselor or psychologist. Knowing (9) about the occupational world, or themselves for that matter, they choose their lifework on a hit-or-miss (10) . Some drift from job to job. Others (11) to work in which they are unhappy and for which they are not fitted.
One common mistake is choosing an occupation for (12) real or imagined prestige. Too many high school students or their parents for them choose the professional field, (13) both the relatively small proportion of workers in the professions and the extremely high educational and personal (14) . The imagined or real prestige of a profession or a "white-collar" job is (15) good reason for choosing it as life’s work. (16) , these occupations are not always well paid. Since a large proportion of jobs are in mechanical and manual work, the (17) of young people should give serious (18) to these fields.
Before making an occupational choice, a person should have a general idea of what he wants (19) life and how hard he is willing to work to get it. Some people desire social prestige, others intellectual satisfaction. Some want security; others are willing to take (20) for financial gain. Each occupational choice has its demands as well as its rewards.

A:identification B:entertainment C:accommodation D:occupation

In his 1979 book, The Sinking Ark, biologist Norman Myers estimated that (1) of more than 100 human-caused extinctions occur each day, and that one million species (2) lost by the century’s end. Yet there is little evidence of (3) that number of extinctions. For example, only seven species on the (4) species list have become extinct (5) the list was created in 1973.
Bio- (6) is an important value, according to many scientists. Nevertheless, the supposed (7) extinction rates bandied about are achieved by multiplying unknowns by (8) to get imponderables.
Many estimates, for instance, rely a great deal on a "species-area (9) ", which predicts that twice as many species will be found on 100 square miles (10) on ten square miles. The problem is that species are not distributed (11) , so which parts of a forest are destroyed may be as important as (12) .
(13) , says Ariel Lugo, director of the International Institute of Tropical Forestry- in Puerto Rico, "Biologists who predict high extinction rates (14) the resiliency of nature. "
One of the main causes of extinctions is (15) According to the Consultative Group on International Agricultural Research, what destroys (16) trees is not commercial logging, but "poor farmers who have no other (17) for feeding their families than slashing arid bunting a (18) of forest".
In countries that practice modern (19) agriculture, forests are in no danger. In 1920, U.S. forests covered 732 million acres. Today they cover 737 million. Forests in Europe (20) from 361 million to 482 million acres between 1950 and 1990.

A:capacity B:occupation C:opportunity D:option

Mr．Smith had an unusual _____________ he was first an office clerk, then a sailor, and ended up as a school teacher.

A:profession B:occupation C:position D:career

Mr. Smith had an unusual ______ : he was first an office clerk, then a sailor, and ended up as a school teacher.

A:profession B:occupation C:position D:career

The college offers courses in a variety of (trades).

A:business B:firm C:work D:occupation

I haven't entered your name and occupation yet.

A:distribution B:career C:argument D:mineral

Local bus can reduce the occupation time of CPU. For the EISA local bus, commonly the time can be reduced to

A:0.42 B:0.22 C:0.12 D:0.02