何为催化剂活性？

Mr. and Mrs. Tailor live in a             beautiful village near the sea. [ ]

A. too

B. very

C. more

D. many

危重疾病时血浆和肌肉中浓度迅速降低，TPN时应早期补充的是（）

A.游离脂肪酸

B.谷氨酰胺

C.ω-3多不饱和脂肪酸

D.精氨酸

E.葡萄糖

阅读下面文章，回答问题。

　　①环滁皆山也。其西南诸峰，林壑尤美，望之蔚然而深秀者，琅琊也。山行六七里，渐闻水声潺潺而泻出于两峰之间者，酿泉也。峰回路转，有亭翼然临于泉上者，醉翁亭也。作亭者谁？山之僧智仙也。名之者谁？太守自谓也。太守与客来饮于此，饮少辄醉，而年又最高，故自号日醉翁也。醉翁之意不在酒，在乎山水之间也。山水之乐，得之心而寓之酒也。

　　②若夫日出而林霏开，云归而岩穴暝，晦明变化者，山间之朝暮也。野芳发而幽香，佳木秀而繁阴，风霜高洁，水落而石出者，山间之四时也。朝而往，暮而归，四时之景不同，而乐亦无穷也。

1．解释下列句子中划线的词。

（1）环滁皆山也　环：______________________

（2）醉翁之意不在酒　意：__________________

（3）野芳发而幽香　发：____________________

2．把下面的句子翻译成现代汉语。

名之者谁？太守自谓也。

译文：_____________________________________

3．选文第①段在总写滁州山景后，由远及近依次写了“西南诸峰”“__________”“__________”“醉翁亭”等景物。

4．概括选文第②段的内容。

___________________________________________

5．下面这段文字说明了什么？

　　欧阳公记^①成，远近争传……凡商贾^②来，亦多求其本，所遇关征^③，以赠官，可以免税。

【注】①记：指《醉翁亭记》。②商贾：商人。③关征：查税征税。

___________________________________________

     Years ago, when I started looking for my first job, wise advisers advised, "Barbara, be enthusiastic

(热情的)! Enthusiasm will take you further than any amount of experience. " How right they were!

     "Nothing great was ever achieved without enthusiasm. "wrote Ralph Waldo Emerson．It is the paste

that helps you hang on there when the going gets tough. It is the inner voice that whispers, "I can do it!"

when others shout, "No, you can’t!” It took years and years for the early work of Barbara McClintock,

a geneticist who won the 1983 Nobel Prize in medicine, to be generally accepted. Yet she didn’t stop

working on her experiments．Work was such a deep pleasure for her that she never thought of stopping.

     We are all born with wide-eye, enthusiastic wonder and it is this childlike wonder that gives

enthusiastic people such youthful air, whatever their age. At 90, cellist Pablo Casals would start his day

by playing Bach. As the music flowed through his fingers, his stooped (弯曲的)shoulders would

straighten and joy would reappear in his eyes. As author and poet Samuel Ulman once wrote, "Years

wrinkle the skin, but to give up enthusiasm wrinkles the soul.”

     Enthusiastic people also love what they do, regardless of money or title or power. Patricia Mcllrath,

retired director of the Missouri Repertory Theater in Kansas City, was once asked where she got her

enthusiasm. She replied, "My father, a lawyer, long ago told me, ‘I never made a dime until I stopped

working for money.’"

     If we cannot do what we love as a full-time career, we can as a hobby. Elizabeth Layton of

Wellsville, Kan was 68 before she began to draw. This activity ended periods of depression that had

trouble her for at least 30 years, and the quality of her work led one critic to say, "I am tempted to call

Layton a genius."

     We can’t afford to waste tears on "might-have-beens". We need to turn the tears into sweat as we go

after "what-can-be". We need to live each moment whole-heartedly, with all our senses-finding pleasure

in the sweet smell of a back-yard garden, the simple picture of a six-year-old, the beauty of a rainbow.

1. The author holds the view that ______．

A. enthusiastic people will never get old

B. enthusiasm can make you succeed and enjoy life

C. enthusiasm is more important than experience

D. enthusiasm can give people more success and fame

2. The author mentions cellist Pablo Casals in the third paragraph to show that ______．

A. music can arouse people’s enthusiasm

B. enthusiasm can give people inspiration needed to succeed

C. enthusiasm can make people feel young

D. enthusiasm can keep people healthy

3. Which of the following can best explain the underlined sentence in the fourth paragraph?

A. Enthusiasm can give you courage and strength in difficult times．

B. If you don’t have enthusiasm, you can achieve nothing．

C. Enthusiastic people seldom consider money and fame．

D. Enthusiastic people can gain great fame and honor．

容易导致"钩状效应"的ELISA方法是（）

A.双抗体夹心法

B.间接法

C.一步法

D.竞争法

E.捕获法