4、Trees should only be pruned (修剪) when there is a good and clear reason for doing so and , he 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 leaving the tree to grow in its own way .

First , pruning may be done to make sure that trees have  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 healthier . 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 (愈合) . 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 important 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 materials available from garden shops produced especially for this purpose . Pruning is usually done in winter , for then you can see the shape of the tree clearly without interference (妨碍) 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 .

 

68.Why should running be done ?

       A.To make the tree grow taller .           B.To improve the shape of the tree .

       C.to get rid of the small ranches .         D.To make the small branches thicker .

69.Trees become unhealthy if the gardener         .

       A.To help a wound to dry .

       B.To cover a rough surface .

       C.damages some of the small side branches

       D.Allows too many branches to grow in the middle

70.Why is a special material painted on the tree ?

       A.To help a wound to dry .          B.to cover a rough surface .

       C.To make a wound smooth .     D.To prevent disease entering a wound .

71.A good gardener prunes a tree         .

       A.several times throughout the year    B.as quickly as possible

       C.occasionally when necessary          D.regularly every winter

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

       A.To discuss different methods of pruning .

       B.To introduce some common knowledge of pruning .

       C.To explain how trees develop disease .

       D.To give practical instruction for pruning a tree .

2、To the Editor

I have been reading your newspaper, the Hometown Gazette, for the past two years, ever since I moved to Smithville. We moved here from New York City, so I am accustomed to reading excellent newspapers such as The New York Times. In fact, we still have the Times delivered on Sundays. The entire family enjoys reading the recipes(食谱) in the magazine, as well as the Styles section.

The Times is great, but the Gazette is another story. I' ve never read an article that doesn't contain at least three or four spelling or grammatical errors. For instance, in last week's issue, you misspelled the word “secretary,” used a singular verb with a plural noun, and used “it's” as a possessive(所有格). And that was just in the lead story! In case you never went to elementary school, “it's” means “it is. ”It's not a possessive adjective!

It's a pity that this tiny little hick (乡下) town has only one newspaper, because I' d like to have an alternative to the rag you publish. I find it hard to believe your news stories. If you can' t spell correctly, how can you get your facts right?

I' ve been meaning to get this off my chest for some time. Please cancel my subscription(订阅 ).And buy yourself a dictionary.

Sincerely,

Jane Z. Jones

 

60. Which phrase from the passage shows the writer' s prejudice?

A. get this off my chest

B. three or four spelling or grammatical errors

C. tiny little hick town

D. reading the recipes in the magazine

61. The author's tone in this passage can best be described as       

A. happy         B. angry          C. sympathetic         D. objective

62. Which statement from the passage is a fact?

A. It' s a pity this town has only one newspaper.

B. The Times is great, but the Gazette is another story.

C. We still have the Times delivered on Sundays.

D. You never went to elementary school.

63. Which statement of the following is not true according to the passage?

A. The writer once lived in New York City, so he was used to reading the Times.

B. The entire family enjoys reading the Styles section in the magazine.

C. The writer has long been planning to express his dissatisfaction with the local newspaper.

D. It is obvious that the editors of the newspaper are not very careful about their work.

 0  42050  42058  42064  42068  42074  42076  42080  42086  42088  42094  42100  42104  42106  42110  42116  42118  42124  42128  42130  42134  42136  42140  42142  42144  42145  42146  42148  42149  42150  42152  42154  42158  42160  42164  42166  42170  42176  42178  42184  42188  42190  42194  42200  42206  42208  42214  42218  42220  42226  42230  42236  42244  97155 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网