2008年6月6日国家发改委发出通知，决定自6月20日起将汽油、柴油价格每吨提高1000元，航空煤油价格每吨提高1500元，自7月1日起，将全国销售电价平均每千瓦时提高2.5分钱。回答10～11题。

10、成品油价格上调带来的影响是   （   ）                                                                      

①会使这种商品的供应量增加　②会使这种商品的需求量减少　③会使这种商品的互补商品的需求量减少　　④会使这种商品的替代商品的需求量增加

A．①②③                          B．②③④                   C．①③④            D．①②③④

11、近年来，成品油价格节节攀升，表明商品的市场价格                                          

A．由政府部门决定和调整　　　　　　B．由商品价值决定并受供求关系影响　

C．是由人民币升值幅度大小决定的　　D．是由商品的使用价值大小决定的

The Importance of Questions
For non-native speakers of English who want to participate in
group discussions, it is important to be able to ask questions in order to
resolve their difficulties.
Ⅰ. Causes of Breakdowns in (1) (1) ______
1. On students’ part
— insufficient command over the (2) of English (2) ______
— poor pronunciation
2. On teachers’ part
— uncertainty of whether his student has asked a question
— the students (3) to employ the correct question form (3) ______
— the teacher interprets the question as a comment
— difficulties arising even when the student employs an/a (4) (4) ______
question form
— the teacher may not know about the (5) of the student’ (5) ______
Difficulty
Ⅱ. Specific Questions
1. Begin questions with an/a (6) . (6) ______
2. Be careful to (7) the exact point. (7) ______
Ⅲ. Another Reason for the Correct Use of (8) —Politeness(8) ______
1. The students uses the imperative (9) the question form (9) ______
when he is nervous or struggling with new subject matter.
2. The teacher may interpret it as (10) and feel angry.(10) ______