[简答题]At the start of the 21st century, humankind finds itself on a non-sustainable course—the course that, unless it is changed, could lead to grand scale catastrophes. At the same time, we are unlocking formidable new capabilities mat lead to more exciting lives and glorious civilizations. This could be either humanity’s last century or the century that sets the world on a course toward a spectacular future. (1) We live on a small, beautiful and a totally isolated planet, but its population is becoming too large; enormous new consumer societies are growing, of which China is the largest; and technology is becoming powerful enough to wreck the planet. (2) We are traveling at breakneck speed into an age of the extremes—extremes in wealth and poverty, extremes in technology and the experiments that scientists want to perform, extreme forces of globalism, weapons of mass destruction and terrorists acting in the name of religion. If we are to survive, we have to learn how to manage this situa

[单项选择]The 21^st Century English Training Center is different from the other 3 schools in that ______.
A) its teaching quality is better C) its courses are more advanced
B) it is the nearest to the city center D) it requires an entrance examination


A. The 21^st Century English Training Center is different from the other 3 schools in that ______.
B. its teaching quality is better
C. it is the nearest to the city center
D. its courses are more advanced
E. it requires an entrance examination

[填空题]The average life expectancy in 21 st century will be______.

[填空题] Jobs in the 21st Century What will our woad be like in 2050 Will families be smaller Will people change jobs and careers frequently Will there be more elderly people Around the world, people are living longer and staying (46) (healthy). People in (47) (economical) rich societies are having fewer children. For example, in the United States in 1980, people over age 65 made up only 11.3 percent of the total (48) In 2050 they will make up over 22 percent. In the 1950s the av (49) families had 4. 8 children. Now the average family has less t (50) one child. The aging population in the U.S. is going to af (51) the job market a great deal. Heahh and (52) (entertain)industries will need many more workers to provide services for older Americans. Jobs in education, es (53) adult education, will be increasing, too, as these older Americans are probably going to go back to school agai

[单项选择]By the first decade of the 21st century, international commercial air traffic is expected ______. vastly beyond today’s levels.
A. to have extended
B. being extended
C. to be extending
D. having been extended

[单项选择]

Passage Four
The face of the 21^st century is already growing in a laboratory. Getting a piece of the new look could soon be as simple as writing a cheque.
Scientists in recent years have made giant leaps in the artificial production of skin, bones and tissue. While their research has been motivated by a desire to help accident and medical victims, their work is about to go commercial.
The burgeoning (萌芽) cosmetic surgery market has snapped up the technological advances. By the turn of the 21^st century, changing your face or improving your body will be limited not by your imagination or desire, but by the size of your bank account.
And there is even work being clone on that, with the costs of cosmetic surgery being cut to make it affordable and accessible for the average woman and her partner.
"It’s no longer a vanity thing, it’s simply making use of the available technology to improve those parts of th
A. breast implant
B. bone structure improvement
C. facial beautification
D. skin replacement

[填空题]In the 21st century, most Americans will marry three or four times