9. We know ____ travels not so fast as light.

       A. sound                      B. sounds                            C. the sounds  D. a sound

8. ____ wonderful space they saw on the room!

       A. How                        B. How a                      C. What                       D. What a

7. It was ____ hot weather that many of us went swimming.

       A. so                            B. such                         C. so as                        D. such a

6. He doesn't like ____ for supper.                    

A. chick         B. chicken      C. chickens     D. chicks

5. The ant has two ____.             

A. stomaches         B. stomacks           C. stomach            D. stomachs

4. They are ____ of different presses(出版社). Now they are having a meeting in one of the ____ office.

       A. editor-in-chiefs, editors-in-chief's   

B. editors-in-chief, editor-in-chief's

       C. editors-in-chiefs, editor's-in-chief's                

D. editors-in-chief, editors-in-chief's

3. Which do you prefer ____ or ____?

       A. potatos, tomatos        B. potatos, tomatoesC. potatoes, tomatosD. potatoes, tomatoes

2. There are three ____ in our factory.

       A. woman doctors         B. women doctors         C. woman doctor    D. women doctor

1. The ____ of the room were covered with ____.

       A. roofs, leafs        B. roofs, leavesC. rooves, leafs     D. rooves, leaves

3.You'll find this map of great ___________in helping you to get round London.

A.price          B.cost         C.value          D.usefulness

解析：答案为C。本题考查特定语境中名词的词义及"be of + 抽象名词"结构。Price (价格)，cost（价钱，费用，成本）不符合题意，value作"quality of being useful or desirable"解时，常与of搭配，在句中作表语或补语，意为"有用，有价值"。故选择value。注意名词词义辨异及惯用法表达，题中"of + 抽象名词"相当于该名词的形容词形式。

                                  练习.名词