已知,将点A1(4,2)向左平移3个单位到达点A2的位置,再向上平移4个单位到达点A3的位置,△A1A2A3绕点A2逆时针方向旋转90°,则旋转后A3的坐标为( )A. B. C. D. 答案:【答案】B【解析】根据平移规律分别求出A2的坐标为和点A3的坐标为(1,5),根据旋转变换的性质求出旋转后A3的坐标.解:点A1(4,2)向左平移3个单位到达点A2的位置,则点A2的坐标为(1,2), 再向上平移4个单位到达点A3的位置,点A3的坐标为(1,5), △A1A2A3绕点A2逆时针方向旋转90°, 则旋转后AIn a new article, Zehr, a professor at the
University of Victoria, Victoria, British Columbia, describes his success in
using the Caped Crusader (披篷骑士) to engage students in the study of physiology.
"Batman (蝙蝠侠) has such powerful influence
on readers because he is a fictional human with superpowers that seem within
reach if we only work at it," writes Zehr, in a new article published in Advances
in Physiology Education, a journal of the American Physiological Society.
Zehr believes that it is not Batman's vast wealth that allows him to protect
the citizens of Gotham City (哥谭市) , but his dedication to developing a wide range of physical
skills.
Zehr uses Batman to establish a framework,
grounded in his fictional universe as well as our real one, in order to discuss
the various components of exercise and physical training and illustrate how the
body's physiological systems respond. His experiences in teaching undergraduate
courses in physiology and neurophysiology made him realize that connecting science
to popular culture helped students understand the lessons better.
He first presented a formal analysis of the
personal and physical discipline that would be required to transform an
ordinary person into a superhero in his book, Becoming Batman: The Possibility
of a Superhero. The book drew on Zehr's understanding and work in human
movement and the plasticity of nerves and muscles associated with exercise. By
coincidence, the book was published in the wake of The Dark Knight, the
blockbuster movie which recounts Batman and his arch-enemy, the Joker.
With the casting almost complete for the
sequel(续集), The
Dark Knight Rises, Dr. Zehr writes about his experiences connecting science
to popular culture, which is captured in the Advances, article, "A
Personal View: From Claude Bernard to the Batcave and Beyond: Using Batman as a
hook for physiology education."
1.In Zehr's opinion, what makes Batman be
able to defend his citizens?
A.his large amount of fortune
B.his devotion to developing varieties of physical skills
C.his habit of wearing a cape
D.his developing so wide range of magic power
2. Which one of the following statements is
TRUE according to the third paragraph?
A.Students of physiology and neurophysiology should have more
physical training
B.To become a batman needs developing a wide range of physical
skills
C.Only Batman can illustrate the respond of the body’s physiological system
D.combining science with popular culture can be beneficial to
students’ study
3.To help students study physiology well,
Dr.Zehr uses Batman to do the following EXCEPT___
A.set up his theoretical principles of teaching physiology
B.discuss the different components of physical training
C.illustrate the ways of body’s physiology system responding
D.perform many physiology experiments on the body movement
4..According to the book Becoming
Batman, what does the possibility of becoming a superhero mainly lie on?
A.Dr. Zehr’s formal analyses of the body's movement rules
B.the flexibility of nerves and muscles when being trained well
C.the physical training conducted by Dr. Zehr
D.the final influence of Batman on one person
5.This passage is mainly about .
A.Batman’seducation significance in physiology
B.introduction to Zehr’ s books on physiology
C.how to become a superhero like Batman
D.Batman’s powerful effects on the readers