In addition to causing hearing loss, (2)_____ noise exposure can also (3)______ blood pressure and pulse rate, cause irritability, anxiety, and mental fatigue, and interfere with sleep, recreation, and personal communication.

Too many television programmes induce an incurious, uncritical attitude that is going to make learning much more difcult. (4)_____ , discriminating viewing of programmes designed for young children can be useful.

They have been (4)_____ to swim up to 100 km, but when there is less ice, they may have to swim further and this can (5)_____ fatal to the bears. A number of bears have drown in the last few years and scientists believe that it is because they were not able to reach more ice before they became too tired and couldn't swim any further.

The Web started to become a (4) _______ resource after 1993 when the first widely distributed browser provided a convenient way to (5) _______ a variety of information on the Internet

Wise parents will have a (2) ________attitude and take the lead from their child. What they should provide is a selection of stimulating toys, books and other activities.

Community colleges (4) _______ a variety of programs and degrees

The Lomonosov Ridge, the major ridge, cuts the Arctic Basin (2) _______ in half, extending as a submarine bridge 1,800 km (1,100 mi) (3) _______ Siberia to the northwestern tip of Greenland.

National parks are managed primarily for public recreation, (4) _______ exceptional locations where visitors can view wildlife and enjoy the (5) _______.

This is where the government meets. Look (5) _______ to see the clock tower with Big Ben, London’s famous (6) _______ that rings every hour.

At Madame Tussaud’s, you’ll see eerily (2) _______, life-size wax figures of pop idols and historic figures.

Some people return to college as mature students and take full- or part-time training courses in a skill will help them to get a job. The development of open learning, (1)______ it possible to study when it is convenient for the students, has increased the opportunities available (2)_______ many people. This type of study was formerly restricted to book-based learning and (3)________ course but now includes courses on TV, CD-ROM or the Internet, and self-access courses at language or computer centers. Americans believe that education is important at all stage of life and should not stop (4)________ people get their first job. About 40% of adults take part in some kind of formal education. About half of them are trying to get qualifications and skills to help them with their jobs, the (5)_________ are taking recreational subjects for personal satisfaction. Schools and community colleges arrange evening classes, and a catalog of courses is published by local boards of education