问题 单项选择题

以下关于宏观经济政策对总需求曲线的影响阐述正确的是( )。

A.扩张性的财政政策将使总需求曲线平行地右移,扩张性的货币政策将使总需求曲线平行地右移

B.扩张性的财政政策将使总需求曲线平行地右移,扩张性的货币政策将使总需求曲线非平行地右移

C.扩张性的财政政策将使总需求曲线非平行地右移,扩张性的货币政策将使总需求曲线平行地右移

D.扩张性的财政政策将使总需求曲线非平行地右移,扩张性的货币政策将使总需求曲线非平行地右移

答案

参考答案:B

解析:

[分析]: 当政府采取扩张性财政政策(如扩大政府支出、降低税率等),会使总需求曲线平行地向右移动。这是因为,政府增加财政支出或降低税率,会使IS曲线右移,从而使AD曲线也相应右移,在价格水平不变时,国民收入增加,如图7-2所示。 中央银行采取扩张性货币政策会使总需求曲线向右上方移动。具体来讲,对于扩张性的货币政策,由于中央银行增加了货币供给,LM曲线将右移,AD曲线相应地并非平行地向右上方移动,在价格水平不变时,收入增加,如图7-3所示。 因此,本题的正确选项为B。

阅读理解

阅读理解

     About 21,000 young people in 17 American states do not attend classes in school buildings.Instead,

they receive their elementary (初等) and high school education by working at home on computers.The

Center for Education Reform says the United States has 67 public "cyberschools", and that is about twice as many as two years ago.

     The money for students to attend a cyberschool comes from the governments of the states where they

live.Some educators say cyberschools receive money that should support traditional public schools.They

also say it is difficult to know if students are learning well.

     Other educators praise this new form of education for letting students work at their own speed.These

people say cyberschools help students who were unhappy or unsuccessful in traditional schools.They say

learning at home by computer ends long bus rides for children who live far from school.

     Whatever the judgment of cyberschools, they are getting more and more popular.For example, a new

cyberschool called Commonwealth Connections Academy will take in students this fall.It will serve

children in the state of Pennsylvania from ages five through thirteen.

     Children get free equipment for their online education.This includes a computer, a printer, books and

technical services.Parents and students talk with teachers by telephone or by sending emails through their

computers when necessary.

     Students at cyberschools usually do not know one another.But 56 such students who finished studies at Western Pennsylvania Cyber Charter School recently met for the first time.They were guests of honor at

their graduation.

1. What do we know from the text about students of a cyberschool?

A. They have to take long bus rides to school.

B. They study at home rather than in classrooms.

C. They receive money from traditional public schools.

D. They do well in traditional school programs.

2. What is a problem with cyberschools?

A. Their equipment costs a lot of money.

B. They get little support from the state government.

C. It is hard to know students' progress in learning.

D. The students find it hard to make friends.

3. Cyberschools are getting popular because ________.

A. they are less expensive for students

B. their students can work at their own speed

C. their graduates are more successful in society

D. they serve students in a wider age range

4. We can infer that the author of the text is ________.

A. unprejudiced in his description of cyberschools

B. excited about the future of cyberschools

C. doubtful about the quality of cyberschools

D. disappointed at the development of cyberschools

多项选择题 X型题