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[简答题]Passage 2
Endangered Species Endangered species are plants and animals that are in immediate danger of extinction. Extinction is actually a normal process in the course of evolution. Since the formation of the earth, many more species have become extinct than those exist today. These species slowly disappeared because of changes of climate and their failure to adapt to such conditions as competition and predation (捕食). Since the 1600s, however, the process of extinction has greatly accelerated as a result of both human population growth and technological encroachment (侵犯) on natural ecology systems. Today the majority of the world’s environments are changing faster than the ability of most species to adapt to such changes through natural selection.
Species become extinct or endangered for a number of reasons, but the primary cause is the destruction of natural habitats (栖息地). Drainage of wetlands (沼泽地), cutting and clearing of forests, growth of cities, and highway
A. A．Human beings are not aware of the importance of preserving endangered species.
B．Some endangered species have already reached the end of their life span in evolution.
C．The development of human society has greatly affected natural ecology systems.
D．The world’s climate has changed so greatly that most species cannot survive.
[单项选择]The new policy may have protected the new city from being polluted as well as the life of its residents ______.
A. affected
B. affecting
C. is affected
D. having affected
[单项选择]The panda is an endangered species, which means that it is very likely to become （） without adequate protection.
A. intact
B. insane
C. extinct
D. exempt
[单项选择]The stethoscope transmits and amplifies sounds from localized areas of the body, thus making them -------to hear and identify
A. easier than
B. as easy as
C. easies so that
D. easier
[单项选择]
Walking through my train yesterday, staggering from my seat to the buffet and back, I counted five people reading Harry Potter novels. Not children—these were real grown-ups reading children’s books.
Maybe that would have been understandable. If these people had jumped whole-heartedly into a second childhood it would have made more sense. But they were card-carrying grown-ups with laptops and spreadsheets returning from sales meetings and seminars. Yet they chose to read a children’s book.
I don’t imagine you’ll find this headcount exceptional. You can no longer get on the London Tube and not see a Harry Potter book. Nor is it just the film; these throwback readers were out there in droves long before the movie campaign opened.
So who are these adult readers who have made JK Rowling the second-biggest female earner in Britain (after Madonna) As I have tramped along streets knee-deep in Harry Potter paperbacks, I’ve menta
A. The worldwide popularity of Harry Potter.
B. Adults benefiting from reading Harry Potter.
C. The origin of Harry Potter as a children’s book.
D. Reflections on Harry Potter’s popularity among adults.
[单项选择]The fragrances of many natural substances come from oils, （） these oils may be used in manufacturing perfumes.
A. of
B. whether
C. from
D. and
[单项选择]Vaccines for viral diseases are often produced from ______.
A. plant cells
B. human hormones
C. crop plants
D. bacteria
[单项选择]How was the distance learning course different from traditional course
A. Students are not required to attend regular class lecture.
B. The professor videotapes class lecture for review.
C. Classes are held out at various locations throughout the area.
D. Students receive credit for work experience.
[单项选择]The timber rattlesnake is now on the endangered species list, and is extinct in two eastern states in which it once______.
A. thrived
B. swelled
C. prospered
D. flourished
[单项选择]The Timber rattlesnake is now on the endangered species list, and is extinct in two eastern states in which it once ______.
A. thrived
B. Swelled
C. survived
D. flourished
