The word justice is usually associated with courts of law. There is no doubt     1     justice has been done when a man’s     2     (innocent) or guilt has been proved. Justice is part of the complex machinery of the law. Those     3     seek it undertake a hard journey and can never be sure that they will find it. Judges, however wise or famous, are human and can make mistakes.

There are rare instances when justice almost ceases to be an abstract concept. Reward or punishment are given quite independent     4     human interference. At such times, justice acts like a living force. When we use a phrase like “it serves him right”, we are, in part, admitting that a certain set of circumstances has enabled justice to act automatically.

When a thief was caught in a large jewellery store one morning, the shop assistants must have found it impossible to resist the temptation to say “it serves him right”. The shop was an old house with many large, disused fireplaces and tall, narrow chimneys. Towards midday, a girl heard a muffled (捂住) cry coming from behind one of the walls. As the cry     5           (repeat) several times, she ran to tell the manager who promptly rang up the fire brigade(消防队). The cry had certainly come from one of the chimneys,     6     as there were so many of them, the fire fighters could not be certain which one it was. They located the right chimney by     7     (tap) at the walls and listening for the man’s cries. After chipping (凿) through a wall which was eighteen inches thick, they found that a man had been trapped in the chimney. As it was extremely narrow, the man was unable to move, but the fire fighters were eventually able to free him by cutting a huge hole in the wall. The sorry-looking, blackened figure that emerged,     8     (admit) at once that he had tried to break into the shop during the night but had got     9     (stick) in the chimney. He had been there for nearly ten hours.     10     we can learn from the story is that justice had been done even before the man was handed over to the police.

First it was pets, then fish.Now it's poultry(家禽）and pigs. The list of animals     1    （allow)to feed on insects is growing.A new EU law authorizing(授权）the use of insect protein in poultry and pig feed(饲料）came     2     force earlier this month.

Since a ban on processed animal protein was imposed in 2001 in the wake of the“mad cow”crisis, soy and fishmeal     3     (become)the base of animal feed in Europe.     4    ，their production needs lots of space and can be harmful to the environment,so feed manufacturers are looking for alternatives.Insects are just the ticket.They are raised in farms     5     require little land or water, and they can be fed on agricultural by-products or food waste such as rotting fruit and vegetables. They're also a natural fit. Most wild fish, birds and pigs eat insects.

The one thing going against them is price: insect protein is two to three times     6    （expensive)than fishmeal.Increasing production may help reduce the difference.Insect companies have worked hard.Research suggests insects may be more than mere feed,boosting growth rates and immune systems as well as filling     7     (stomach).They also offer the prospect of a green,local protein.

Poultry and pig feed are by far     8     largest animal-feed markets,but they're more     9    （compete)than food for pets or fish. This year the European Food Safety Agency has ruled that three species of insects (yellow mealworm, locusts and house crickets) are safe for humans to eat as well.     10     surprises them is that people seem less keen on the idea than chickens and pigs.