学位英语

第三部分：概括大意与完成句子(第23～30 题，每题1 分，共8 分)

阅读下面这篇短文，短文后有2 项测试任务：(1)第23～26 题要求从所给的6 个选项中为第2～5 段每段选择1 个正确的小标题；(2)第27～30 题要求从所给的6 个选项中选择4个正确选项，分别完成每个句子。请将答案涂在答题卡相应的位置上。

Keeping Cut Flowers

1 While everybody enjoys fresh cut flowers around their house, few people know how to keep them for as long as possible. This may be done by keeping in mind a few simple facts.

2 An important thing to remember about cut flowers is that they are sensitive to temperature. For example, studies have shown that cut carnations （康乃馨） retain their freshness eight times longer when kept at 12℃ than when kept at 26℃. Keeping freshly harvested flowers at the right temperatures is probably the most important aspect of flower care.

3 Flowers are not intended by nature to live very long. Their biological purpose is simply to attract birds or insects, such as bees, for pollination （授粉）. After that, they quickly dry up and die. The process by which flowers consume oxygen and produce carbon dioxide （二氧化碳）, called respiration （呼吸）, generates the energy the flower needs to give the flower its shape and color. The making of seeds also depends on this energy. While all living things respire, flowers have a high level of respiration. A result of all this respiration is heat, and for flowers the level of heat relative to the mass of the flower is very high. Respiration also brings about the eventual death of the flower. Thus the greater the level of respiration, the sooner the flower dies.

4 How, then, to control the rate at which flowers die? By controlling respiration. How is respiration controlled? By controlling temperature. We know that respiration produces heat, but the reverse is also true. Thus by maintaining low temperatures, respiration is reduced and the cut flower will age more slowly.

5 Another vital factor in keeping cut flowers is the quality of the water in which they are placed. Flowers find it difficult to "drink" water that is dirty or otherwise polluted. Even when water looks and smells clean, it almost certainly contains harmful substances that can endanger the flowers. To rid the water of these unwanted substances, household chlorine bleach （含氯漂白剂） can be used in small quantities. It is recommended that 15 drops of chlorine bleach （at 4% solution） be added to each litre of water. The water and solution should also be replaced each day.

23 Paragraph 2____________

24 Paragraph 3____________

25 Paragraph 4 ____________

26 Paragraph 5____________

A Control of Respiration

B Beauty of Fresh Cut Flowers

C Role of Respiration

D Most Important Aspect of Flower Care

E Need for Clean Water

F Ways of Stopping Respiration

27 A few simple facts will help you keep cut flowers____________.

28 Respiration plays a key role____________.

29 The aging of cut flowers can be slowed down____________.

30 Another important way to prolong the life of cut flowers is____________.

A by keeping its original shape and color

B in the life of cut flowers

C to produce carbon dioxide

D for as long as possible

E by controlling temperature

F to replace the water and solution every day

参考答案：

23 D 第二段的第一句话说应该记住一件很重要的事就是鲜花对温度很敏感，接下来举了康乃馨的例子，最后一句话说保持鲜花在最适宜的温度是最重要的部分。所以Most Important Aspect of Flower Care 概括了本段的内容。

24 C 第三段讲的都是呼吸对花的重要性，如通过呼吸作用，花获得保持外形和颜色，以及产生花籽所需要的能量，但同时呼吸也是导致鲜花死亡的因素。

25 A 第四段的开头提出了问题：如何控制花死亡的速度，接下去作者回答了这个问题，即控制呼吸作用。所以Control of Respiration 概括了本段的内容。

26 E 第五段的开头提到保证花存活的另一个重要的因素是将花放在清水中，接下来说了具体的作法。所以Need for Clean Water 概括了本段的内容。

27 D 原句在语法上是完整的，即有主语和谓语，但在句意上还缺点什么，加上as long as possible 后整个句子的意思是：一些简单的事实将会帮助你尽可能长久的保持剪下来的花。

28 B 原句的意思是“呼吸起了关键作用”，但没讲清在哪方面，因此可以加进in the life of cut flowers.

29 E 原句的意思是：花的衰老可以减慢。从句意上是不完整的，可以通过什么方法减缓呢？在六个选项中2 个“by+ing”短语可以做方式状语，从句意上by controlling temperature是合适的。

30 F 这里需要填入的是系动词is 后面的表语，句子的意思是“延长鲜花生命的另外一个重要方法是…….”,根据5 段的最后一句话，我们知道是每天换水和加消毒液。

编辑推荐：

2015年职称英语考试理工类模拟套题一

2014年职称英语考试真题汇总

2014年职称英语考试成绩查询时间汇总

2015年职称英语考试网络辅导热招中……

更多关注：职称英语教材 职称英语考后真题点评 职称英语零基础通关

（责任编辑：vstara）