The tree was broken.
All the leaves fell down.
One of the branches fell down.
The tree was cut down.
第1题：
He lost his _b__________ and fell off the tree．
第2题：
Which of the following usually causes a tree to grow unhealthy?
A. Giving a tree a special shape and a definite height.
B. Removing small side branches and making a tree look less thick.
C. Allowing too many branches to grow in the middle.
D. Having a tree surrounded by many other trees.
42．答案为C 根据第二段A tree may grow healthier by removing the branches that are locking up the centre可知树中间的枝杈不利于树木生长，C与文章内容相反，因此错误。
第3题：
The boy (take) to hospital at once after he fell off the tree.
第4题：
第5题：
The cottonwood tree Mr. Flanagan found was an extremely tall tree with broad leaves.
第6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7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8题：
No two leaves from the same tree are ________.
A identical
B original
C analytical
D critical
第9题：
第10题：