[单项选择]The world remembers Helen Keller today because ______. [A] she was very bright [B] she went to college [C] she was a brave and wonderful person

[单项选择]______ taught Helen Keller her first word.

[单项选择]Helen Keller got very sick when ______.

[单项选择]Helen Keller was famous because ______. [A] she traveled around the world [B] her teacher taught her many things [C] she learned to read and write and helped many people in the world

[单项选择]Helen Keller was blind and deaf,but ______. [A] she found a way to understand the world [B] her mother and father didn't feel sad [C] she got well when she was very old

[单项选择]

People all over the world today are beginning to hear and learn more and more about the problem of pollution. Pollution is caused either by man’s release of completely new and often artificial (人造) substances into the environment, or by releasing greatly increased amounts of a natural substance (物质), such as oil from oil tankers into the sea.
Whatever its underlying reasons, there is no doubt that much of the pollution caused could be controlled if only companies, individuals and governments would make more efforts. In the home there is an obvious need to control litter and waste. Food comes wrapped up there or four times in packages that all have to be disposed of; drinks are increasingly sold in bottles or tins which cannot be reused. This not only causes a litter problem, but also is a great waste of resources, in terms of glass, metal and paper. Advertising has helped this process by persuading many of us not only to buy thing we neither want nor need, but al
A. the release of artificial or natural substances into the environment
B. the production of new industrial goods
C. increased amounts of a natural substance
D. our ever-increasing population

[单项选择]In the world today any damage to society, whether at the local or at the global level, will not remain unnoticed.
A. 在当今世界，社会受到局部或全面损害的程度还是难以确定的。
B. 在当今世界，对社会所造成的任何局部或总体损害都依然未被察觉。
C. 在当今世界，对社会的任何损害，无论是局部的还是全球性的，终究会被察觉出来。
D. 在当今世界，对社会造成的任何破坏，不管从局部看还是从全局来看，都不会不被注意到。

[单项选择]The population of the world today is about______ .
A. 400 million
B. 4 billion
C. 400 million
D. 40 billion

[单项选择]Finding information in today's world is easy. The ______ is how you can tell if the information you get is useful or not.
A. ability
B. competition
C. challenge
D. knowledge

[单项选择]Today, Guinness is the (world's) widely distributed beer produced in (over) 40 countries and (sell) in around (130).

[单项选择]Today, computers ______ widely in the world.

[单项选择]Phone caller: Hello. Could I speak to Helen Helen:________

[单项选择]What did Helen recently pass

[单项选择]能发生Keller-Kiliani反应的为( )
A. 甾体
B. 黄酮
C. 萜类
D. 香豆素
E. 西地兰

[单项选择]After she came out of hospital, Mrs. Keller wasn't ______ as before.
A. strong
B. able
C. clever
D. sad

[单项选择]Mrs. Keller could do all housework because ______.