[单项选择]The discoveries of science often are a mixed blessing. On the one hand they give us valuable pesticides that enable the farmer to grow more abundant crops and on the other hand they ______ the benefits by destroying the balance of nature.
A. compromise
B. misplace
C. damage
D. counterract

[单项选择]The discoveries of science often are a mixed blessing. On the one hand they give us valuable pesticides that enable the farmer to grow more abundant crops and on the other hand they the benefits by destroying the balance of nature.
A. compromise
B. misplace
C. damage
D. counterract

[单项选择]Advance in science more often than not encounters powerful opposition, ______Darvin’s Theory of Evolution.
A. as was the case with
B. such as the case of
C. as it did with
D. as in the case of

[单项选择]Though science is often imagined as a disinterested subject, scientists are no different from anyone else: they are ______ human beings enmeshed (陷入:卷入) in a web of personal and social circumstances.
A. vulnerable
B. rational
C. careless
D. passionate

[单项选择]Science at the present time is often applied to ______.
A. boost production of grain
B. construct first-rate transportation system
C. turn out sophisticated weapons used for mass killing in war
D. turn desert into fertile land

[单项选择]Announcements of discoveries in professional journals always qualify and quantify their______; announcements in the general media often do not, because usually lack the background to interpret them.
A. (A) sources… critics
B. (B) certainty… laymen
C. (C) shortcomings … experts
D. (D) jargon… readers
E. (E) theory… specialists

[单项选择]Many important scientific discoveries are in fact _________ones as they were made by chance.
A. relative
B. temporary
C. subordinate
D. accidental

[单项选择]To what extent will future scientific discoveries make possible the ______ of human life span
A. increase
B. expansion
C. growth
D. prolongation

[单项选择]What type of scientific discoveries does the woman mainly talk about


A. Archaeological.
B. Biological.
C. Meteorological.
D. Sociological.

[单项选择]Recent discoveries in Montana indicate that some dinosaurs may have {{U}}resided{{/U}} in colonies.
A. lived
B. died
C. hunted
D. fed

[单项选择]Which of the hypothetical discoveries would MOST likely shed doubt on the author's claim that "field regeneration" could be responsible for the earth's magnetic reversals

[单项选择]Which of the following discoveries would likely have an effect upon the views of scientists similar to that of the explosion of El Chico

[单项选择]Which of the following hypothetical discoveries, if made, would cast MOST doubt on the most recent conclusions regarding the function of the human appendix
A. (A) After laboratory experiments, scientists discover evidence to reject the notion hat the human appendix is a "vestigial" organ.
B. (B) Certain animal species which had not previously been given attention are to possess an appendix resembling that of humans.
C. (C) Lymphoid tissue is discovered, after careful study, not to play a role in the recognition of foreign antigens in ingested material.
D. (D) After re-examination of the evidence, ulcerative colitis is discovered to be caused by factors wholly unrelated to the human appendix.
E. (E) It is discovered that in rabbits, hindgut fermentation does not require the presence of an organ acting as reservoir for bacteria.

[单项选择]Man's attitude toward scientific discoveries has always been ______.


A. suspicious
B. undoubting
C. cynical
D. critical