at intervals throughout the year
as quickly as possible
occasionally when necessary
regular every winter
第1题：
Which of the following is NOT tree?
A) Educational campaigns are very important to early sowing.
B) Of all the advances that the writer hopes for, early sowing is the most important.
C) Peasants should remain the masters of their fields.
D) Government might as well make good and firm rule for peasants.
第2题：
考虑如下代码：
class Tree{}
class Pine extends Tree{}
class Oak extends Tree{}
public class Forest {
public static void main( String[] args ) {
Tree tree = new Pine();
if( tree instanceof Pine )
System.out.println( "Pine" );
if( tree instanceof Tree )
System.out.println( "Tree" );
if( tree instanceof Oak )
System.out.println( "Oak" );
else
System.out.println( "Oops" );
}
}
则输出结果中有哪些?
A.Pine B.Tree C.Forest D.Oops E.无输出
第3题：
It is believed that the tradition of having a pine tree as a Christmas Tree comes from Germany.()
第4题：
The writer suggests that pruning should be done in winter because______.
A. the cut surface can heal more quickly
B. open wounds on the tree run the less risk of getting diseased
C. a gardener can do pruning more easily
D. the leaves can interfere
44．答案为C 根据短文最后一句得知冬季树叶少能方便修剪树木，A、B、D皆为干扰项，与原句不符；
第5题：
A. spanning-tree mode rapid-pvst
B. spanning-tree uplinkfast
C. spanning-tree backbonefast
D. spanning-tree mode mst
第6题：
Traversing a binary tree in preorder is equivalent to(68).
A．Traversing the forest corresponding to the binary tree in root-first order
B．Traversing the forest corresponding to the binary tree in root-last order
C．Traversing the forest corresponding to the binary tree in breadth-first order
D．None of the above
第7题：
A. spanning-tree backbonefast
B. spanning-tree uplinkfast
C. spanning-tree portfast
D. spanning-tree cost512
第8题：
The gardener is taking care of the place, no one _____ there at present.
A:living
B:lives
C:lived
D:to live
第9题：
Passage Three
Trees should only be pruned (修剪) when there is a good reason for doing so. Many gardeners believe that more damage results from doing it unnecessarily than from leaving the tree to grow in its own way.
First, pruning may be done to make sure that trees have a desired shape. The object may be to get a tree of the right height, and to help the growth of small side branches which will thicken its appearance or give it a special shape. Secondly, pruning 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. A tree may grow healthier by removing the branches that are locking up the centre and so preventing the free movement of air.
One result of pruning is that an open wound is left on the tree and this provides an easy entry (进入) for diseases, but it is 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. Pruning is usually clone in winter, for then you can see the shape of the tree clearly without the interference from the leaves.
41. According to the article, which of the following statement is NOT true?
A. Pruning is necessary when there are unwanted branches.
B. Damage is done to a tree if it is left to grow in its own way.
C. Diseased or dead branches should be cut away if they are found to rub against each other.
D. Growing side branches often prevent air from moving freely.
41．答案为B 根据第一段最后一句可知该陈述是错误的，修剪只是在有必要的时候才进行。
第10题：