问题 名词解释

物料循环倍率

答案

参考答案:

循环流化床锅炉中,由分离器分离下来且返送回炉内的物料量与给进的燃料量之比。

单项选择题 A2型题
完形填空

The word “sharp” can be _1_ to describe many different things in your home, classroom, and places of work. In this chapter, the writer _2_sharp pencils, meaning pencils with a very fine _3_.The writer does not like dull pencils.

We can also use “sharp” to describe the blades of knives. Knives also have points. We can use “sharp” to describe a _4_ kind of point,_5_as the sharp points of kitchen and steak knives. Scissors have blades, too, and we can describe these blades as sharp or dull. Furthermore, the points of scissors are _6_ sharp or rounded _7_ on the kind of scissors. Some tools, such as saws, scrapers, and garden tools, also have blades. We can use the words “sharp” and “dull” to describe the blades of these tools, _8_.Sharp knives, scissors, and tools are_9_to use. They cut things easily and quickly, without effort.

“Sharp” can be used to describe the edges of furniture and _10_some containers. For example, the edge of a table or desk can be _11_.In addition; we can describe the edge of _12_ open can as sharp. The top of a can is sometimes sharp_13_ to cut your hand. A piece of _14_ from a broken jar or bottle is_15_very sharp.

_16_we sometimes use “sharp” to describe people. A person who appears sharp is very well _17_.A person who is sharp, on the other hand, is intelligent, smart, and_18_ learn and understand.

To summaries, “sharp” can be used to describe many kinds of _19_ that have blades, points, and edges. When we used it to describe people, it can mean nice looking, well dressed, or intelligent. It is an expensive word _20_ it can be used in many different ways.

1. A. written         B. used         C. seen           D. taken

2. A. talks about                      B. takes care of

C. doesn't like to mention            D. makes up his mind to

3. A. sharp          B. color         C. point          D. edge

4.  A. some         B. any          C. only           D. certain

5. A. so           B. as soon         C. such           D. or

6. A. either        B. neither          C. too            D. very

7. A. working      B. which are       C. is             D. spending

8. A. too          B. even           C. either          D. ever

9. A. difficult      B. easy            C. interesting      D. clean

10. A. for         B. with            C. of             D. at

11. A. seen        B. sharp           C. smooth         D. hard

12. A. an          B. a              C. the             D.\

13. A. so as        B. in order        C. so that          D. enough

14. A. news        B. glass          C. information      D. advice

15. A. again        B. quite          C. rather           D. ordinarily

16. A. However     B. Finally        C. Therefore        D. In this way

17. A. prepared     B. dressed        C. mannered        D. served

18. A. easy to      B .is to           C. to              D. quick to

19 .A. funny things  B. knives        C. objects          D. containers

20. A. because      B. even if        C. though          D. not only