Text 2
Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible-light microscope late in the sixteenth century introduced a previously unknown realm of single celled plants and animals. In the twentieth century, electron microscope have provided direct views of viruses and minuscule surface structures. Now another type of microscope, one that utilizes X rays rather than light or electrons, offers a different way of examining tiny de tails; it should extend human perception still farther into the natural world.
The dream of building an X-ray microscope dates to 1895; its development, however, was virtually halted in the 1940’ s because the development of the electron microscope was progressing rapidly. During the 1940’ s, electron microscopes routinely achieved resolution better than that possible with a visible-light micro
A. To begin a discussion, of sixteenth-century discoveries.
B. To put the X-ray microscope in a historical perspective.
C. To show how limited its uses are.
D. To explain how it functioned.
Text 2
Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible-light microscope late in the sixteenth century introduced a previously unknown realm of single celled plants and animals. In the twentieth century, electron microscope have provided direct views of viruses and minuscule surface structures. Now another type of microscope, one that utilizes X rays rather than light or electrons, offers a different way of examining tiny de tails; it should extend human perception still farther into the natural world.
The dream of building an X-ray microscope dates to 1895; its development, however, was virtually halted in the 1940’ s because the development of the electron microscope was progressing rapidly. During the 1940’ s, electron microscopes routinely achieved resolution better than that possible with a visible-light micro
A. see viruses directly
B. develop the electron microscope later on
C. understand more about the distribution of the chemical elements
D. discover single-celled plants anal animals they had never seen before
Text 1
Beauty has always been regarded as something praiseworthy. Almost everyone thinks attractive people are happier and healthier, have better marriages and have more respectable occupations. Personal consultants give them better advice for finding jobs. Even judges are softer on attractive defendants. But in the executive circle, beauty can become a liability.
While attractiveness is a positive factor for a man on his way up the executive ladder, it is harmful to a woman.
Handsome male executives were perceived as having more integrity than plainer men; effort and ability were thought to account for their success. Attractive female executives were considered to have less integrity than unattrative ones; their success was attributed not to ability but to factors such as luck.
All unattractive women executives were thought to have more integrity and to be more capable than the attractive female executives. Interestingly, though, the rise o
A. turns out to be an obstacle to men
B. affects men and women alike
C. has as little effect on men as on women
D. is more of an obstacle than a benefit to women
Text 3
Shopping has always been something of an impulse activity, in which objects that catch our fancy while strolling are immediately bought on a whim. Advertisers and sellers have taken advantage of this fact, carefully positioning inexpensive but attractive items on paths that we are most likely to cross, hoping that our human nature will lead to a greater profit for them. With the dawn of the Internet and its exploding use across the world, the same tactics apply.
Advertisers now place "banners", links to commercial web sites decorated with attractive pictures designed to catch our eyes while browsing the webs, on key web sites with heavy traffic. They pay top dollar for the right, thus creating profits for the hosting web sites as well. These actions are performed in the hopes that during the course of our casual and leisurely web surfing, we’ll click on that banner that sparks our interest and thus, in theory, buy the products adverti
A. reserved consent but discontent.
B. objective analysis void of opinions.
C. enthusiastic support but slight contempt.
D. approval so far but uncertainty in the future.
Text 1
India has about a billion people and a dozen major languages of its own. One language, and only one, is understood-by the elite- across the country: that of the foreigners who ruled India for less than 200 years and left 52 years ago.
Today, India. Tomorrow, unofficially, the world. That is well under way; at first, because the British not only built global empire but also it was settled by America, and now because the world (and notably America) has acquired its first truly global--and interactive--medium, the Internet.
It is estimated that some 350 million people speak English as their first language. Maybe 250 - 350 million do or can use it as a second language; in excolonial countries, notably, or in English--majority ones, like 30 million recently immigrants to the United States, or Canada’s 6 million francophone Quebeckers. And elsewhere.’ The guess is 100 million--1 billion depending how you define "can". Let us b
A. there are not many audiences
B. all the audiences know that foreign language
C. the audiences don' t like it very much
D. the language spoken on-screen is English
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