题目内容
Part A
Directions: Read the following three texts. Answer the questions on each text by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1.
Trees should only be trimmed when there is a good and clear reason for doing so and, fortunately ,the number of such reasons is small. Trimming involves the cutting away of overgrown and unwanted branches, and the inexperienced gardener can be encouraged by the thought that more damage results from doing it unnecessarily than from leaving the tree to grow in its own way.
First, trimming may be done to make sure that trees have a desired shape or size. Tile object may be to get a tree of the right height. And at the same time to help the growth of small side branches which will thickens its appearance or give it a special shape. Secondly, trimming may be done to make the tree healthier. You may cut out diseased or dead wood ,or branches that are rubbing against each other and thus causing wounds. The health of a tree may be encouraged by removing branches that are blocking up the center and so preventing the free movement of air.
One result of trimming is that an open wound is left on the tree and this provides an easy entry for disease, but it's a wound that will heal. Often there is a race between the healing and the disease as to whether the tree will live or die. So that there is a period when the tree is at risk. It should be the aim of every gardener to reduce the risk of death as far as possible. It is essential to make the area which has been trimmed smooth and clean ,for healing will be slowed down by roughness. You should allow the cut surface to dry for a few hours and then paint it with one of the substances available from the garden shops produced especially for this purpose. Trimming is usually done in winter, for you can see the shape of the tree clearly without interference front the leaves and it is, too, very unlikely that the cuts you make will bleed. If this does happen, it is ,of course, impossible to paint them properly.
A good gardener trims a tree______.
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【C19】
Pubic opinion regarding drunken driving has changed because______.
A special substance is painted on the tree to ______.
A man named Dr. Samuel Johnson【C9】______all this. In 1755 Dr. Johnson produced the first modern dictionary. He【C10】______in his dictionary all important words, both easy and hard, and he gave good meanings. He also gave good sentences to show how each word was【C11】______used in speech and【C12】______. By the end of the 1700' s most dictionary makers【C13】______Johnson' s lead. Dictionaries were getting better and better.
The 1800' s【C14】______the greatest improvement【C15】______the quality of dictionaries. In England scholars planned and prepared the Oxford English dictionary, a【C16】______work. One of the most interesting【C17】______of the Oxford Dictionary is its word histories. It【C18】______the history of each word from its earliest【C19】______use【C20】______the time of the printing of the dictionary.
【C1】
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