更多"Scientists are trying to make（）inve"的相关试题:
[单项选择]Scientists have been trying to come up with biological explanations for the difference between boys and girls.
A. 科学家们已经努力提出用生物学来解释男孩与女孩间的这种并异。
B. 科学家们已经试图把男生与女生之间的差异用生物来解释。
C. 科学们一直试图从生物学的角度来解释男孩和女孩间的差异。
D. 科学家们已经试图提出男孩和女孩生理上的差异。
[单项选择]Most scientists agree this outpouring contributes to global warming, which could eventually lead to coastal flooding, ______ weather, and widespread crop loss.
A. intensive
B. extreme
C. unpleased
D. unique
[单项选择]Why did the famous scientists become successful
[单项选择]Why American scientists are developing these maps
A. To estimate the extreme weather.
B. To develop the satellite technology.
C. To improve agricultural output.
D. To learn how to change information to maps more efficiently.
[单项选择]Scientists find the new cults bewildering because they are ______.
A. too reactionary
B. too subjective
C. based on false evidence
D. derived from inappropriate sources
[单项选择]Social scientists have recently become greatly interested in space because ______.
A. space industrialization will create new markets and more jobs on Earth
B. space exploration will be harmful to man
C. space colonization is near at hand
D. otherwise technologists will catch the opportunity to go to space
[单项选择]
Passage Five
Scientists claim that air pollution causes a decline in the world’s average air temperature. In order to prove that theory, ecologists have turned to historical data in relation to especially huge volcanic eruptions. They suspect that volcanoes effect weather changes that are similar to air pollution.
One source of information is the effect of the eruption of Tambora, a volcano in Sumbawa, the Dutch East Indies (the former name of the Republic of Indonesia), in April 1815. The largest recorded volcanic emption, Tambora threw 150 million tom of fine ash into the stratosphere. The ash from a volcano spreads worldwide in a few days and remains in the air for years. Its effect is to turn incoming solar radiation into space and thus cool the earth. For example, records of weather in England show that between April and November 1815, the average temperature had fallen 4.5°F. During the next twenty-four months, England suffered one of the co
A. England's proximity to the North Sea
B. Volcanic ash in the atmosphere
C. Floorings in the area
D. Pollution caused by the International Revolution
[单项选择]What do scientists learn about human brain according to the passage
A. It is very easy to understand how memory works.
B. Memory has a very limited capacity to store information.
C. Information stored in the human brain is never lost.
D. Very old people seldom remember their childhood.
[单项选择]The two scientists were quarrelling at the beginning of the story, because __________.
[单项选择]In scores of experiments, scientists are changing the genetic endowments of plants and animals, and the results could______ a revolution in farm fields, feedlots and dairy barns.
A. Spawn
B. bring
C. instigate
D. plot
[单项选择]Earth scientists have come to understand that climate______.
A. is going through a fundamental change
B. has been getting warmer for 10 000 years
C. will eventually change from hot to cold
D. has gone through periodical changes
[单项选择]Some scientists believe that a breakthrough in the use of solar energy depends on _________.
A. advanced technology
B. further experiments
C. sufficient funding
D. well-equipped laboratories
[单项选择]What social scientists have long felt puzzled about
A. The mortality rate can not be predicted.
B. The death toll remained stable year after year.
C. A quota for each type of death has not come into being.
D. People lost their lives every year for this or that reason.
[单项选择]The social scientists have long felt confused about the fact that______.
A. 2,500 people accidentally commit suicide every year
B. the death rates remained stable year after year
C. a quota for each type of death has not established
D. people lost their lives every year for this or that reason
[单项选择]According to the passage, scientists are skeptical toward their equations because scientists ______.
A. work to explain real, rather than theoretical or simplified situations
B. know that well-defined problems are often the most difficult to solve
C. are unable to express their data in terms of multiple variables
D. are unwilling to relax the axioms they have developed
