A new study done by the Higher Education Quality Council of Ontario （HEQCO） shows that it

A new study done by the Higher Education Quality Council of Ontario （HEQCO） shows that it doesn't make much of a difference that parents reward their children with cash for their better marks.
Many parents have offered cash to their children in the hope that it would improve marks and possibly raise their children's interest in achieving higher marks．
The study, conducted by researchers from the University of Toronto （UT） and the Massachusetts Institute of Technology （MIT） to learn more about the potential for financial encouragement as motivation for improved marks, involved first and second year students receiving financial aid in 2008-2009 at the University of Toronto Scarborough．
The top students participating in the study who said they were very concerned about having enough money to complete their degrees were to receive $100 for getting a grade of 70 per cent for each one-semester course, plus $20 for every percentage point beyond that．It was imaginable that a student could earn as much as $700 for achieving 100 percent in a course．
Harvey Weingarten, president and CEO of HEQCO said, In its efforts to help disadvantaged students by exploring the idea of paying them to attend school, the Toronto District School Board （TDSB） is asking the same question many other districts are asking about how to improve student participation and performance．Our study and others to date indicate that this practice has little effect if any in those situations where it has been tested．
The authors of the study suggest that ineffective study habits may be a barrier to academic achievement and that the real problem may be more a lack of academic preparation than a lack of effort or motivation．They note that the availability of peer （同伴） advising does not appear to have helped greatly．They conclude that other potential avenues to improving performance, or other approaches of teaching, are needed at the high school and postsecondary levels．
【小题1】If a student gets a grade of 85% in a course, he will get ．A．$100B．$300C．$400D．$700【小题2】The underlined words this practice in Paragraph 5 refer to ．A．improving student participationB．seeking help from different districtsC．paying disadvantaged students to attend schoolD．testing student performance in the same district【小题3】The real problem with student participation and performance is most probably a lack of ．A．academic preparationB．effort or motivationC．teaching methodsD．peer advising【小题4】What is mainly discussed in the passage?A．Many parents have offered cash to their children．B．Many first and second year students receive financial aid．C．Ineffective study habits lead to poor academic achievement．D．Rewarding students with cash for good grades has little effectC

(答案→)C 解析：文章讲述的是奖励学生钱对学生的成绩影响不大。【小题1】计算题。根据第三段第三行plus $20 for every percentage point可知超过70分多一分多20元，那么85分比70多了15分，奖励300元再加上用来的100元，一共是400元。【小题2】推理题。这一段就是指付钱给那些成绩不是很好的学生以激励他们提高成绩。【小题3】细节题。根据最后一段第二行may be more a lack of academic preparation than a lack of effort or motivation可知A正确。【小题4】主旨大意题。根据主题段第一段内容可知文章涉及的是奖励学生钱对学生的成绩影响不大。

感谢回答，我学习了