问题 选择题

某粒子的结构示意图为

下列信息中不正确的是(  )

A.该元素原子的原子核外有2个电子层

B.该粒子具有稳定结构

C.该粒子是阳离子

D.该元素是一种金属元素

答案

A、该元素的原子:核电荷数=质子数=核外电子数=11,所以应有3个电子层,故A错误.

B、该粒子最外层电子数为8,所以具有稳定结构,故B正确;

C、该粒子符合“阳离子中,核电荷数=质子数>核外电子数”的特点,所以是一种阳离子,故C正确;

D、由题目中的粒子结构示意图,知质子数为11,为钠元素,所以该元素是一种金属元素,故D正确;

故选A.

选择题
阅读理解

阅读理解。

      Men are happier with money, while women find greater joy in friendships and relationships with their

children, co-workers and bosses, a new global study shows.

      The online study of 28,153 people in more than 51 countries by global marketing and information firm

Nielsen found that as the world struggles with a recession (衰退) and financial (经济) mar kets keep falling,

many people are reminding themselves that money can't buy happiness.

     The Nielsen Happiness Study found that globally, women are happier than men in 48 of the 51 countries

surveyed in August 2009,and only in Brazil, South Africa and Vietnam were men found to be happier than

women." Because they are happier with noneco nomic factors, women's happiness is more recession-proof

which might explain why women around the world are happier in general than men are," Nielsen Vice Ptesident

of Consumer Research Bruce Paul said in a statement.

      Japanese women reported the greatest difference and are 15 percent happier than Japanese men. Women

are also more optimistic about the future, scoring higher than men on predictions (预言 ) of their happiness

in the next six months.

     Women were also more pleased with their marriage life, the study found. Japanese and New Zealand

women reported the grea test. difference in satisfaction with their marriage life.

     Men are generally happier with their physical health than women, and this is especially pronounced in

South Africa. Egypt bucks the trend (趋势), with women rating their happiness with their health much higher

than men.

     Globally, men rated their happiness with their mental health higher than women. It was the same in Belgium, South Korea, Mexico, Norway, Spain, Sweden, Egypt, and Israel.

     There are three main factors of happiness globally, according to the study: personal financial situation,

mental health and job/ca- reer. Being satisfied with your partner is also important for happi ness.

1. Compared with women, men tend to be happier with ____.

A. money, friendship and their family

B. financial situation, health and marriage life

C. the future, mental health and money

D. mental health, physical health and money

2. The underlined word in Paragraph 6 is closest in meaning to _____.

A. strengthens

B. opposes

C. follows

D. continues

3. According to the passage, which of the following statements is NOT right?

A. Clobally, women are happier than men in general.

B. Women in Vietnam are not as happy as men.

C. Women score higher than men on predictions of their future.

D. Women's happiness is less likely affected by financial crisis.

4. Which country has the biggest difference in happiness between men and women?

A. Japan.

B. New Zealand.

C. Egypt.

D. South Africa.