绿色开花植物的结构层次是[ ] A．细胞―组织―器官―植物体 B．细胞―组织―系

在同一幅地图上，图上距离和实际距离成正比例．______．（判断对错）

汽车以40m/s的速度做匀速直线运动，刹车时的加速度大小为5m/s²，那么开始刹车后4s内与开始刹车后10s内汽车通过的位移之比为（　　）

A．1：1

B．3：1

C．3：4

D．4：3

She often helps the old ____ their housework.[ ]

A. of

B. in

C. at

D. with

阅读理解。

                                               A few famous left－handed persons

     Bill Gates

     Claiming the nation’s richest man among their number is a source of considerable pride for America’s

society of southpaws (左撇子)．In fact，the Microsoft titan (巨人) and philanthropist (慈善家) is one of a surprising number of U．S.business areas to be left－handed，including Henry Ford，John D．

Rockefeller and former IBM head Lou Gerstner.But the club seems to be a guys－only fraternity(联谊会)．Research suggests that while left－handed men tend to earn more than their right－handed

colleagues,   there is no similar advantage for women.A study by the National Bureau of Economic

Research floated the   idea that left－handed men favor “divergent” (发散性) thinking，a form of

creativity in which the brain moves “from conventional knowledge into unexplored association”．Maybe

that’s what it takes to develop a net worth estimated at least $570 billion.

    Oprah Winfrey

    The talk－show queen doesn’t need much more to set her apart from the rest.She has herestimated $2.7 billion fortune and a magic ability to sell books just by glancing at them，but she also has the

distinction of being a member of the left－handed club.Men are more likely to be left－handed than

women which makes Oprah more impressive.She’s “in good company”：other showbiz ladies of the southpaw persuasion include Whoopi Goldberg，Julia Roberts and Angelina Jolie(her husband Brad Pitt is also a lefty)．

     Napoleon Bonaparte

     Legend has it that Napoleon objected to the time－honored military practice of marching on the left

side of the road with weapons at the ready in the right hand: it put lefties (左撇子) like him at a strategic

disadvantage.Once in power，the story goes，the French emperor，whose queen，Josephine，was

also a southpaw，ordered his armies to change sides.Civilians in countries he conquered had to do the

same.Hence，it’s said that the rules of the road were born，which also explains why the British (who，

along with the Prussians，defeated Napoleon at Waterloo) still drive on the left.

     Marie Curie

     Not only was atomic scientist Marie Curie left－handed，but she was the matriarch (女家长) of a

whole family of accomplished，southpaw scientists.Curie，who discovered the principles of radioactivity

    and won two Nobel Prizes，was married to fellow lefty Pierre Curie，who was playing an important

part in helping Marie’s atomic research and shared one of her Nobel awards.Historians believed their

daughter，Irene，was also left－handed.Irene went on to win a Nobel Prize of her own with her

husband，who，you guessed it，was also left－handed.Lefty scientists are hardly unusual.In addition to

the Curie clan，Einstein，Newton and Alan Turing-founder of modern computer science were all left－

handed as well.

1．Through this passage，the author mainly wants to tell us that________.

A．Bill Gates’s contribution to society is greater than Marie Curie

B．Napoleon Bonaparte made the rules of the road in England

C．Oprah Winfrey had nothing but $7 billion fortune at that time

D．4 persons were not only successful but all left－handed

2．According to the first paragraph，what maybe develop a net worth estimated at least $570 billion?

A．Club of southpaw

B．Woman advantage

C．Divergent thinking

D．Conventional knowledge.?

3．What can we learn from the second paragraph

A．Oprah Winfrey has a special ability to sell books only by glancing at them.

B．Oprah Winfrey is completely different from other left－handed women.

C．Oprah’s appearance makes her doubly impressive in the left－handed club.

D．Oprah Winfrey and her husband are both southpaws.

4．Which of the following statements is NOT TRUE according to the passage?

A．Napoleon Bonaparte and his wife are both left－handed.

B．Marie Curie and her husband are both left－handed.

C．Irene，Marie Curie’s daughter，and her husband are left－handed.

D．Brad Pitt’s wife，Julia Roberts，is also left－handed.

5．The best general idea of the last paragraph is that________.

A．not all scientists are left－handed

B．lefty scientists are hardly common

C．lefty scientists come from the west

D．scientists are all left－handed

（）不是造成残疾时间长短不同的医学原因

A.疾病或损伤的严重程度 

B.个人选择的治疗方案 

C.社会心理问题 

D.疾病或损伤的发现和治疗时期（早、中、晚） 

E.接受有效治疗的容易程度