选择题：下列说法正确的是（） A．在微观世界中，分子是迄今为止发现的最小粒子 B．两个

题型：单项选择题

Text 2

The Boston Marathon is an annual marathon sporting event hosted by the city of Boston, Massachusetts, on Patriots’ Day, the third Monday of April. Begun in 1897 and inspired by the success of the first modem-day marathon competition in the 1896 Summer Olympics, the Boston Marathon is the world’s oldest annual marathon and ranks as one of the world’s most well-known road racing events. The marathon is one of five members of the World Marathon Majors.
The event attracts an average of about 20,000 registered participants each year. In the 100th running of the Boston Marathon in 1996, the number of participants reached 38,000. While there are cash prizes awarded to the winners of the marathon, most of the runners participate for the accomplishment of having run the race at all.
The Boston Marathon was originally a local event, but its fame and status have attracted runners from all over the world. For most of its history, the Boston Marathon was a free event, and the only prize awarded for winning the race was a wreath woven from olive branches. However, corporate-sponsored cash prizes began to be awarded in the 1980s, when professional athletes began to refuse to run the race without cash awards. The first cash prize for winning the marathon was awarded in 1986.
Women were not allowed to enter the Boston Marathon officially until 1972. Roberta (Bobbi) Gibb is recognized as the first woman to run the entire Boston Marathon (in 1966). In 1967, Kathrine Switzer, who had registered as "K. V. Switzer", was the first woman to run with a race number. She finished, despite a celebrated incident in which race official Jock Semple tried to rip off her numbers and eject her from the race. In 1996 the B.A.A. retroactively recognized as champions the unofficial women’s leaders of 1966 through 1971.
In recent years, critics have pointed to the dominance of foreign-born athletes in the event (especially runners from Kenya) to back their arguments that American professional running is lagging behind the rest of the world in terms of producing quality athletes. However, foreign dominance of the race is nothing new. Between 1946 and 1967 only one American (John J. Kelley in 1957) won the marathon in an era when Finland and Japan were the distance powerhouses.
The Boston marathon is open to all runners, male and female, from any nation, but they must meet certain qualifying standards. To qualify, a runner must first complete a standard marathon course certified by a national governing body affiliated with the International Association of Athletics Federations within a certain period of time before the date of the desired Boston Marathon (usually within approximately 18 months prior). Prospective runners in the age range of 18-- 34 must run a time of no more than 3:10:59 (3 hours and 10 minutes) if male, or 3:40:59 (3 hours and 40 minutes) if female; the qualifying time is adjusted upward as age increases. For example, a 40--44 year old male can still qualify with a time of 3:20:59. An exception to the qualification requirement is awarded to 1,250 runners who raise a pre-determined level of sponsorship for officially designated local charities.
Besides the Olympic trials and the Olympic marathons, Boston is the only major American marathon that requires a qualifying time. Thus for many marathoners to qualify for Boston (to "BQ") is a goal and achievement in itself, making it a "people’s Olympic event."

The original prize awarded for winning the marathon in 1800s was

A．a floral circle made from olive trees.

B．money sponsored by companies.

C．a professional status.

D．brave fame.

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题型：阅读理解

阅读理解。

How often one hears that children wishing they were grown-ups and old people wishing they were

young again! Each age has its pleasures and pains, and the happiest person is the one who enjoys what

each age gives him without wasting his time in useless regrets.

Childhood is a time when there are few responsibilities to make life difficult. lf a child has good parents, he is fed, looked after and loved, whatever he may do. It is impossible that he will ever again in his life be

given so much without having to do anything in return. In addition, life is always presenting new things to

the child-things that have lost their interest for older people because they are too well-known. But a child

has his parents. He is not so free to do what he wishes to do; he is continually being told not to do things

or being punished for what he has done wrong.

When the young man starts to earn his own living, he can no longer expect others to pay for his food,

his clothes, and his room. But he has to work if he wants to live comfortably. If he spends most'of his time playing about in the way that he used to as a child. he will go hungry. And if he breaks the laws of society as he used to break the laws of his parents, he may go to prison. If, however, he works hard, keeps out

of trouble and has good health, he can have the great happiness of building up for himself his own position

in society.

1. According to the second paragraph, the writer thinks that_______.

A. life for a child is comparatively easy

B. a child is always loved whatever he does

C. if much is given to a child, he must do something in return

2. After a child grows up, he_______ .

A. will have little time playing

B. should be able to take care of himself

C. can still ask for help in time of trouble

3. Which of the following statements is NOT true according to the passage?

A. People are often satisfied with their life.

B. Life is less interesting for old people.

C. Adults are free to do what they want to do_______.

4. he underlined word "responsibilities" in the second paragraph means_______.

A. duties

B. jobs

C. suggestions

5. The main idea of the passage is_______.

A. life is not enjoyable since each age has some pains

B. young men can have the greatest happiness if they work hard

C. one is the happiest if he can make good use of each age in his life

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题型：单项选择题

脑膜刺激征的特征性表现是

A．颈强直

B．头痛

C．瞳孔不等大

D．巴宾斯基征阳性

E．肢体偏瘫

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题型：选择题

随着市场对绿色食品的青睐，淮河沿岸地区某村民组在本村稻田里，采用“稻鸭共作”新型稻田种养模式，水稻和鸭子实现双丰收。据此回答下列各题。

小题1:“稻鸭共作”生产与下列哪种农业地域类型特征基本相符

A．混合农业

B．商品谷物农业

C．立体农业

D．季风水田农业小题2:下列有关“稻鸭共作”生产的说法正确的是

①形成良性的农业生态系统 ②生产规模大，机械化水平高

③是一种绿色环保农业类型 ④可以在全国大城市郊区推广

A．①②

B．①③

C．②③

D．③④

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题型：单项选择题

设关系R(A，B，C)和S(B，C，D)，下列各关系代数表达式不成立的是______。

A) π_A(R)∩π_D(S)
B) R∪S
C) π_B(R)∩π_B(S)
D) R∩S

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下列说法正确的是（） A．在微观世界中，分子是迄今为止发现的最小粒子 B．两个

题目：

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