问题 单项选择题

畸形精子症指正常形态的精子百分数小于

A.30%
B.35%
C.40%
D.45%
E.50%

答案

参考答案:A

解析:精子形态学分析应该是多参数的,应该分别记录每种缺陷,如果正常形态精子少于30%,则成为畸形精子症。

阅读理解

Since my retirement(退休) from teaching music in 2001, I have spent a good deal of time painting as an artist. I actually began drawing again in the summer of 1995 when my father died, so perhaps I was trying to recover from the loss of my father, or maybe it was just that it brought back memories of him. In any case, I drew pen and ink animals and landscapes(风景画) much influenced(影响) by Krenkel and St. John for five years.

For some strange reason, I had been waiting until my retirement to start doing watercolors again, but as soon as I walked out of the school door for the last time I picked up my brushes and rediscovered Andrew Wyeth, who quickly became my favorite artist. I had looked through all the art books I had on my shelves and found his watercolors to be the closest to how I thought good watercolors should look. So I painted landscapes around Minnesota for three years and tried out many other types of painting. However, watercolors remained my first choice, and I think I did my best work there, showing my paintings at a number of art exhibitions.

Art is now together with my piano playing and reading. There is a time for everything in my world, and it is wonderful to have some time doing what I want to do. As Confucious once said, “At seventy I can follow my heart’s desire.”

小题1:What is the text mainly about?

A.Learning to paint in later life.

B.How to paint watercolors

C.An artist-turned teacher

D.Life after retirement小题2:The author started drawing again in 1995 because_________.

A.he hoped to draw a picture of his father

B.he couldn’t stop missing his father

C.he had more time after retirement

D.he liked animals and landscapes小题3:We can infer from the text that the author__________.

A.had been taught by Krenkel and St. John

B.painted landscapes in Minnesota for 5 years

C.believed Wyeth to be the best in watercolors

D.started his retirement life at the age of severty小题4:How does the author probably feel about his life as an artist?

A.Very enjoyable.

B.A bit regretful

C.Rather busy.

D.Fairly dull.

单项选择题