We often think insects to be harmless. This is partly true. Many an insect are h

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We often think insects to be harmless. This is partly true. Many an insect are harmful. Flies carry diseases. Others insects carry diseases, too. Farmers are at war with insects most the time. Hunger insects kill crops in the fields Farmers spray the field as to get rid of these insects. Does this means that all insects are harmful? No. Many are of great helpful to man. Bees make honey. With bees and other insects, many trees would have not fruit. Silkworms make silk. Some insects eat other insects that kill fruit trees.

答案

We often think insects to be harmless. This is partly true. Many an insect are harmful. Flies
harmful                              is
carry diseases. Others insects carry diseases, too. Farmers are at war with insects most ∧ the
Other                                                     of
time. Hunger insects kill crops in the fields Farmers spray the field as to get rid of these insects.
Hungry                        
Does this means that all insects are harmful? No. Many are of great helpful to man. Bees make
mean                                           help
honey. With bees and other insects, many trees would have not fruit. Silkworms make silk. Some
Without                                    no
insects eat other insects that kill fruit trees.

解析

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