选择题：人能感受到声音频率有一定的范围，大多数人能听到的声音的频率范围是20～20000

题目：

人能感受到声音频率有一定的范围，大多数人能听到的声音的频率范围是20～20000Hz。大象“交流”的语言是一种次声波，人类听不到大象的“声音”，是因为（）

A．大象发出的声音太小

B．次声波无法传入人耳

C．次声波的频率大于20000Hz

D．次声波的频率小于20Hz

答案：

答案：D

题目分析：解决此题要知道人能听到的声音频率范围是20Hz～20000Hz，频率低于20Hz的声音叫次声波。因为大象进行交流的“声音”是一种次声波，其频率低于20Hz，不在人耳能够听到的声音频率范围之内，所以人类听不到大象之间的交流“声音”；故选D。

题型：阅读理解

Research shows that much of our predisposition （倾向） towards determination, sociability and self - control and sense of purpose is in our genes．In fact, our DNA plays a bigger role in influencing these traits （ characteristics）than our upbringing （儿童期的教养）and the company we keep．Taken together, these aspects of personality can make the difference between success and failure, say the Edinburgh University researchers．

They questioned more than 800 pairs of twins about their attitudes to life to tease apart the influences of nature and nurture．Comparing identical twins, who share all their DNA and their up bringing, with non-identical twins, who have a shared background but are no more genetically alike than other brothers and sisters, is a technique often used by researchers to quantify the influence of genetics．

The results, published in the Journal of Personality, showed that genes play a much bigger role than lifestyle, with self-control particularly etched （铭刻） into our DNA．

Our genes a222so largely determine how determined and persistent we are．This is important in terms of success, as someone who refuses to give up is more likely to achieve their dreams than someone who throws in the towel at the first hiccough．

Researcher Professor Timothy Bates said, "Ever since the ancient Greeks, people Lave de hated the nature of a good life and the nature of a virtuous life．Why do some people seem to manage their lives, have good relationships and cooperate to achieve their goals while others do not? Previously, the role of family and the environment around the home often controlled people' s ideas about what affected psychological well-being．However, this work emphasizes a much more powerful influence from genetics．"

However, those who haven' t been dealt a helpful hand of genes shouldn' t he too depressed．The professor says a sense of purpose is the key and advises those who are eager for success to focus their thoughts on making a difference．

小题1:What does the result of the research indicate?

A．Our DNA is the only factor to decide our traits．

B．Our DNA plays a decisive role, in achieving success．

C．Education plays little part in the formation of our character．

D．Society has Little effect on us in our personality．小题2:The underlined part in Paragraph 4 refers to someone who ．

A．is born successful

B．determines to make a difference

C．makes great effort

D．admits defeat easily小题3:Timothy Bates mentions the ancient Creeks in order to indicate that ．

A．some people can live a good life because they can manage their lives

B．people haven't made it clear yet what is the key personality trait（持点,特征） to be a success

C．in ancient Greece the role of family and the environment was ignored

D．the relationship between personality and success has always been people's concern小题4:According to the passage, the key personality trait is ．

A．determination

B．kindness

C．politeness

D．sociability小题5:What is the best title for the passage?

A．How do people work hard?

B．Why can some people succeed?

C．DNA determines success or failure

D．Several factors determine personality

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