Cloze Passage (4.6)Read the passage carefully and fill in the blanks with the most suitable word.
Apart ______________ their usual sense organs, animals often
develop special sense organs. These ___________ give them extra
sensitivity and information about the ___________ around them and
are often needed for survival.
Dogs have the most amazing sense of ____________. Inside a
dog's muzzle, there is a large space that _____________ scents and
passes the sensory information to the ___________. Moisture inside
the nose ______ to dissolve scent particles, this enhances detection
of the smell. Interpreting scents takes up a large ____________ of a
dog's brain activities.
Snakes have an organ at the roof of their mouths ___________
the Jacobson's organ. A snake collects chemical particles ________
its tongue and transfers them to sensory _________________ in the
Jacobson's organ for the chemicals to be detected.
Human beings do not develop extra sense organs. Often when
one of the senses is _____________, the other senses can become
more sensitive to overcome deficiencies.
©COPYRIGHT 2000 Strategic Thinking Business P/L Singapore ALL RIGHTS RESERVED