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Do you want to improve your physics and chemistry grades? Well, maybe you should first learn something about the struggles (奋斗) of great scientists.

The American Psychological Association did an interesting study. More than 400 students from schools in New York City took part in it. The students were divided into three groups. Group 1 read a typical textbook that describes the achievements of great scientists. Group 2 read about those scientists' personal struggles. For example, as a Jew, Einstein (爱因斯坦) ran away from Nazi Germany to avoid persecution (迫害). The last group read about the scientists' intellectual struggles, such as Marie Curie's failed scientific tests. These stories about struggles also told students how the scientists dealt with these obstacles障碍) .

The students took a science exam before the study. After the six-week study, they took another. Scientists found those in Groups 2 and 3 improved their science grades. Students in Group 1 didn't see a grade increase. Some of them even had lower grades after the study.

The study was led by Xiaodong Lin-Siegler, a teacher at Columbia University. According to Xiaodong, kids often think Einstein was truly intelligent. They believe they will never match him.

Many of them fail to realize that any success requires a long journey. Along the way, there are many failures失败) .

Students who read the struggle stories more probably said that great scientists were like themselves. The "great minds" also had to overcome obstacles to achieve success.

Xiaodong says today's science textbooks fail to bring science to life. As a result, students seldom regard science as part of their everyday lives. Instead, they just see a long list of facts that they have to remember. Xiaodong thinks textbooks should include more stories about how great scientists had to struggle to succeed. And students should focus more on how these scientists dealt with the obstacles they met along the way.

根据短文内容，选择最佳答案。
1．According to the article, students can improve their physics and chemistry grades by _______.

A．reading the achievements of great scientists more carefully

B．listening more carefully to their physics and chemistry teachers

C．learning about how great scientists dealt with their obstacles

2．All of the students who took part in the study _________.

A．were interested in physics and chemistry

B．went to school in New York City

C．wanted to improve their physics and chemistry grades

3．Andy Hunt was one of the students who took part in the study. According to his report card, he was probably a member of _________.

Andy Hunt Class 2, Grade 9 Physics 2018.4-9     86 2018-5-22   79

A．Group 1

B．Group 2

C．Group 3

4．In Paragraph Four, the word "match" means "___________ " in Chinese.

A．满足

B．比得上

C．配对

5．Xiaodong Lin-Siegler thinks science textbooks should ____________________.

A．tell students directly that Einstein was born a common man

B．make the long lists of facts山at students have to remember more interesting

C．include more stories about how great scientists had to struggle to succeed