MahoganyIn the natural rainforest, Mahogany is a very large canopy tree, sometimes reaching over 150 feet in height, with trunks sometimes more than 6 feet in diameter above a large basal buttress. It is a generally open-crowned tree, with gray to brownish-red fissured bark.
Mahogany is perhaps the most valuable timber tree in the whole of Latin America and has been heavily exploited for most of this century. Mahogany is becoming increasingly rare, and is already extinct in parts of its original range.
Mahogany varies from yellowish, reddish, pinkish, or salmon colored when freshly cut, to a deep rich red, to reddish brown as the wood matures with age. Mahogany is fine to medium texture, with uniform to interlocking grain, ranging from straight to wavy or curly. Irregularities in the grain often produce highly attractive figures such as fiddle back or mottle. Mahogany polishes to a high luster, with excellent working and finishing characteristics. It responds well to hand and machine tools, has good nailing and screwing properties, and turns and carves superbly.
Mahogany is regarded by many as the world’s premier wood for fine cabinetry, high-class furniture, trimming fine boats, pianos and other musical instruments, sculpture, joinery, turnery, figured and decorative veneer, interior trim, and carving.

5.what makes mahogany becoming increasingly rare?
a.Its size.
b.Its exploitation.
c.Its quality.
d.Its value.
6.How large can mahogany be?
a.Less than 5 feet in diameter.
b.More than 6 feet in diameter.
c.About 100 feet in diameter.
d.Over 150 feet in diameter.
7.“...and is already extinct in parts of its original range.” The underlined word means...
a.Survive
b.Vanish
c.Stay alive
Uncommon