2012高考英语 考前30天之备战45分钟综合性过关小练习(十).doc

考前30天之备战2012高考英语45分钟综合性过关小练习(） 注意事项： 1. 本练主要包括完形填空、任务型阅读、书面表达三种题型。 一、 完形填空(原创) 请认真阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项。 Trees should only be pruned when there is a good and clear reason for doing so and, the number of such reasons is 1. Pruning 2 the cutting away of overgrown and unwanted branches, and the 3 gardener can be encouraged by the thought that more damage results from doing it unnecessarily than from 4 the tree to grow in its own way. First, pruning may be done to 5 that trees have a desired shape or size. The 6 may be to get a tree of the right height, and at the same time 7 the growth of small side branches, which will thicken its appearance or give it a 8 shape. Secondly, pruning may be done to make the tree 9. You may 10 diseased or dead wood, or branches that are rubbing against each other and thus cause wounds. The health of a tree may be encouraged by removing 11 that are blocking up the centre and so preventing the free movement of 12. One result of pruning is that an open wound is left on the tree and this provides an easy entry for 13, but it is a wound that will heal. Often there is a 14 between the healing and the disease as to whether the tree will live or die, 15 there is a period when the tree is at risk. It should be the aim of every 16 to reduce that risk of death as far as possible. It is essential to make the area, which has been pruned 17, 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 garden shops 18 especially for this purpose. Pruning is usually done in 19, for then you can see the shape of the tree clearly without interference from the 20 and also it is very unlikely that the cuts you make will bleed. If this does happen, it is, of course, impossible to paint them properly． ( ) 1. A. high B. low C. small D. large ( ) 2. A. includes B. contains