Directions: Read
the following passage. Summarize the main idea and the main point(s) of the
passage in no more than 60 words. Use your own words as far as possible.
A
remarkable variety of insects live in this planet. More species of insects
exist than all other animal species together. Insects have survived on earth
for more than 300 million years, and may possess the ability to survive for
millions more. Insects can be found almost everywhere -- on the highest
mountains and on the bottom of rushing streams, in the cold South Pole and in
bubbling hot springs. They dig through the ground, jump and sing in the trees,
and run and dance in the air. They come in many different colours and various
shapes.
There
are many reasons why insects are so successful at surviving. Their amazing
ability to adapt permits them to live in extreme ranges of temperatures and
environments. The one place where they have not yet been found to any major
extent is in the open oceans. Insects can survive on a wide range of natural
and artificial foods -- paint, pepper, glue, books, grain, cotton, other
insects, plants and animals. Because they are small they can hide in tiny
spaces.
Also,
insects have an enormous reproductive capacity: An African ant queen can lay as
many as 43,000 eggs a day.
Another
reason for their success is the strategy of protective colour. An insect may be
right before our eyes, but nearly invisible because it is cleverly disguised(伪装) like a green leaf, lump of brown
soil, gray lichen(青苔),
a seed or some other natural object. Some insects use bright, bold colours to
send warning signals that they taste bad, sting or are poison. Others have wing
patterns that look like the eyes of a huge predator, bitter-tasting insects;
hungry enemies are fooled into avoiding them.
答案: Large varieties of insects successfully survive almost anywhere for several reasons. First, their adaptive capacities enable them to survive in extreme temperatures and environments. They can live on various foods and hide in tiny places. Second, insects excel at reproduction. Last, insects use protective colors to disguise or give warnings so that they successfully fool their enemies.