常把粉尘中游离的二氧化硅含量高于（）称为矽尘。 A.5% B.3% C.空气中粉尘高

如下图，请回答： 　　

（1）图中的人物是谁？他被尊称为什么？　

                                                                                                                                                            

（2）他的主要历史功绩是什么？

                                                                                                                                                            

At 20 year of age F.W. Woolworth found work in exchange for room and board at a local dry goods store , and after his employers held a successful clearance sale he saw the possibilities of a discount store. His key improvements were having the goods on open display instead of behind the counter , and having prices plainly marked instead of bargaining.

With borrowed funds he opened his first F.W. Woolworth store in the suburb of Utica, New York in 1879, but the store closed the following year . Deciding that his problem had been a poor location. He opened a new store in downtown Lancaster, Pennsylyania in 1881. Within months he was opening multiple stores in business partnerships with local retailers,and within a few years Woolworth was a millionaire. In 1909 he opened his first store in England, and in 1913 the company opened its new headquarters in New York’s Woolworth Building—then the tallest building in the world.

Woolworth had a deep fear of dentists , allowing his teeth to rot ,and died of a dental(牙齿)lunch counters in many stores , Woolworth was America’s largest restaurant chain through the 1940s. The company peaked as the world’s largest department store chain in the late 1970s, with more than 4 . 000 stores. By the late 1990s business was sputtering (喷溅), and the company closed all of its American department stores,renamed itself Venator, and sold the Woolworth Building . In 2003 Venator renamed itself after the company’s most successful division, Foot Locker, Inc . Under separate ownership , Woolworth stores are still operated in Austria , Germany , Mexico, South Africa , and the United Kingdom.

小题1:The first F. W. Woolworth store failed mainly because     .

A．it was located too far away from the city center

B．it was a new brand for customers

C．its goods are much too expensive

D．it was inconvenient for customers to choose goods小题2:A clearance sale offers customers a good chance    .

A．to make a purchase on cash

B．to buy something in a very low price

C．to bargain with the sellers

D．to pick up what you like for free小题3:Which is the right order of events that happened in this passage?

a.Woolworth became a millionaire

b.first F. W. Woolworth store opened

c.F.W. Woolworth found work at a local dry goods store

d.The company peaked as the world’s largest department store chain

e.Woolworth died of a dental infection

A．d-b-c-e-a

B．a-c-b-d-e

C．c-b-a-e-d

D．a-d-e-c-b小题4:We know from this passage that      .

A．Woolworth built the tallest building in the world in 1913.

B．the number of Woolworth reached its peak before the death of F.W. Woolworth

C．offering free lunch is one of the characters of Woolworth store store chain

D．Woolworth had no chain stores in America for about 20 years小题5:.F.W.Woolworth’s success mainly owes to      .

A．his hard working and diligent efforts

B．his gifted talent in selling

C．his new market concept and sales model

D．his rich experience in the dry goods store

酶的特异性是指（）

A.不同细胞含相同酶

B.酶是一种蛋白质

C.酶对底物有特异选择性

D.酶的结构具特异性

E.酶具有催化活性

颤证又称（）

A.振掉

B.癫狂

C.痫证

D.颤振

E.震颤

Fit at Any Size

Nikki Blonsky is exactly the role model most parents dream of for their kids. She’s happy, she’s successful, she’s overcome obstacles—no wonder her young fans adore her. She’s also overweight— by some measures very overweight—in a culture that fetishizes thin.
(41)Blonsky is such a lucky dog, because she wouldn’t have been a popular figure she had been born a decade earlier.
(42)Happiness might be the most difficult word to define, but at least people are increasingly aware of the fact that the body shape does not determine happiness.
(43)Nobody likes to be over-weighted, yet it’s not our right to make the decision.
(44)Before you let your kids to lose weight, you should make sure what they are losing, weight or health.
(45)I you only feel hungry, then you can freely enjoy the joy of eating and drinking; however, if you bear the word "weight" in your mind, you can’t do that.
Amid all this back-and-forth, however, there is one point that everyone agrees on: exercise definitely improves a child’s overall sense of well-being. Cooper, who invented aerobics a generation ago, has been testing the physical fitness of schoolchildren over the past decade and has consistently found that active kids do better academically, have fewer disciplinary issues and maintain better medical histories. "A child doesn’t need to be a star athlete or a tong-distance runner," Cooper says. "Even taking the stairs instead of an elevator has positive effects. "
[A] There’s little doubt that being obese puts inactive youngsters at a higher risk for several health conditions, including Type 2 diabetes, high blood pressure and heart disease. But almost no studies have been done evaluating the pros and cons of kids being fat yet active. Plus, reports on adults in similar situations have conflicted. Since the 1970s, doctors at the nonprofit Cooper Institute in Dallas have gathered data from more than 100,000 patients who have been weighed, measured and made to run on treadmills while their vital signs are monitored. "We’ve long concluded that people who are overweight and active can be healthier than those who are thin but sedentary", says Dr. Kenneth Cooper, the institute’s director. "There’s no reason to believe that conclusion doesn’t apply to our children too. "
[B] Behind the push to get kids fit is the growing recognition that, in many cases, there’s just no fighting the natural rhythms or shape of a child’s body. Throughout childhood and adolescence, hormones may cause weight to fluctuate dramatically. Plus, nature determines whether we’re all going to be stocky, a beanpole or something in between before we’re even born. "Most body weights and types for children and adults are genetically determined", says Glenn Gaesser, a professor of exercise physiology at the University of Virginia. "There are a lot of kids who are just naturally heavier than their peers but may be even healthier. "
[C] Difficult as it is to hear that your child is overweight, placing a child on an enforced diet may do more long-term harm than good. Doctors have yet to find a weight-loss program that has proved universally effective and safe, especially for children. More often, dieters will lose weight in the short run only to regain it. Research suggests that the repeated losing-regaining cycle can lead to loss in bone density and lean muscle mass, organs and bones, jeopardizing overall health. In fact, at least 15 major studies have shown higher death rates for adults after repeated losing regaining weight cycling.
[D] Plus-size celebrities like Blonsky—or, for that matter, her Hairspray co-stars John Travolta (albeit in a latex fat suit) and Queen Latifah—are increasingly spreading the message that slim is not the last word in happy. Fit means happy too; so does staying active; so does loving your body no matter its shape. The key is to get that body healthy and keep it that way. The numbers on the scale—pediatricians, nutritionists and psychologists now argue—should start to come second to physical fitness as a gauge for health.
[E] As many as 10 million women and 1 million men in the U. S. suffer from an eating disorder, according to the National Eating Disorder Association (NEDA). Nearly 90% of those afflicted are under the age of 20, and females between the ages of 15 and 24 are 12 times as likely to die from anorexia as any one other cause of, death. A 2005 study published in the journal Pediatrics determined that of 10,000 teens surveyed, less than half of the males and about a third of the females were happy with their bodies. "Parents face a complicated situation", Tim Brownell, an expert from NEDA, says. "They have to promote healthy weight, but they also don’t want to change children into diet-crazed fanatics. "
[F] There was a time when that alone would have been enough to keep Blonsky, the 19-year-old star of the movie Hairspray, out of the fan magazines and off the posters decorating grade-schoolers’ bedroom walls. But that time may at last be ending. The national obesity epidemic did not happen in a vacuum. It occurred in an era in which fashion models have got thinner and thinner, the tolerance for even a little flab has grown lower and lower, and the rates of eating disorders like anorexia have climbed higher and higher. In that environment, children and adolescents trying to develop a healthy body image have almost no chance at all.