2024年12月英语四级阅读考试练习题及答案(30)

2024-10-25 08:01:00来源:网络

  在备考英语四级阅读时,重点应放在提高阅读速度和理解文章主旨上。多做练习,熟悉常见题型和技巧,有助于应对考试挑战。新东方在线小编为大家整理了“2024年12月英语四级阅读考试练习题及答案(30)”,希望能为大家带来帮助。

  2024年12月英语四级阅读考试练习题及答案(30)

  Question 26 to 30 are based on the following passage .

  Tress should only be pruned when there is a good and clear reason for doing so and , the number of such reasons is small . Pruning 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 the tree to grow in its own way .

  First , pruning may be done to make sure that trees have a desired shape or size . The 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 thicken its appearance or give it a special shape . Secondly , pruning may be done to make the tree heavier . You may cut out 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 branches that are blocking up the center 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 for disease , 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 , so that there is a period when the tree is at risk . It should be the aim of every gardener to reduce that risk of death as far as possible . It is essential to make the area , which has been pruned 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 garden shops especially for this purpose . Pruning is usually done in winter , for then you can see the shape of the tree clearly without interference from the leaves 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 .

  26. Pruning should be done to _____.

  A)make the tree grow taller . B) does not protect them form the wind

  C)get rid of the small branches D) make the small branches thicker .

  27. Trees become unhealthy if the gardener_______

  A)allows too many branches to grow in the middle

  B)does not protect them from the wind

  C)forces them grow too quickly

  D)damages some of the small side branches.

  28 . Why is a special substance painted on the tree ?

  A)to make a wound smooth .

  B)to prevent disease entering a wound .

  C)to cover a rough surface .

  D) to help a wound to dry .

  29. A good gardener prunes tree ____

  A) at intervals throughout the year

  B) as quickly as possible

  C) occasionally when necessary

  D) regularly every winter

  30 . What was the author’s purpose when writing this passage ?

  A)to give practical instruction for pruning a tree

  B)to give a gardener description of pruning

  C)to explain how trees develop disease

  D)to discuss different methods of pruning

  参考答案:26. B 27. A 28. B 29. C 30. B

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