下面是gre填空机经1100的节选内容：
When pulsars were first discovered, some of the astrophysicists involved briefly (i)_____ these types of stars might be (ii)______extraterrestrial intelligence. Specifically, the pulsar’s periodic radiation pattern was initially interpreted as (iii)______ rather than—as it turned out to be—the natural product of the spinning of a neutron star.
Blank (I)Blank (II)Blank (III)
A：ignored whether D：suggestive of G：a deliberate hoax
B：thought that E：unrelated to H：an episodic phenomenon
C：disavowed that F：evidence against I：a constructed code
答案：BDI
There has been great enthusiasm in the United States for reducing fossil fuel dependence by increasing production of biofuels from crops such as corn and switchgrass, but this (i)_____ about biofuel’s potential should be (ii)_____ by a realistic appraisal of the costs and challenges of biofuel production.
Blank (I)Blank (II)
A：forbearance D：tempered
B：exuberance E：delineated
C：obduracy F：exacerbated
答案：BD
Until now,old snapshots and home movies faded and crumbled and were eventually (i)_____.Only a few precious mementos were preserved and passed along. But as photography moves into the digital realm, family albums and home videos seem capable of (ii)_____: our capacity to store them is, for all practical purposes, approaching the infinite. Is such a transformation a good thing? The natural world teaches us that (iii)_____ are vital to ecological health. Does a similar principle apply to communal memory?
Blank (I)Blank (II)Blank (III)
A：archived D：transmission G：death and decay
B：discarded E： immortality H： predator and prey
C：reproduced F：revolution I：reproduction and renewal
答案：BEG
The threat of litigation makes the art authentication industry _____ realm: connoisseurs refuse to communicate in writing and confidential agreements bind authenticators to silence.
A：an opportunistic
B：a clandestine
C：a moralizing
D：a xenophobic
E：an anarchistic
答案：B
Recent research runs counter to the long-cherished notion that a small drop in body temperature during and after surgery is either _____ or actually protects the patient by slowing metabolism and reducing the body’s demand for blood and oxygen.
A：beneficial
B：immaterial
C：inconsequential
D：preventive
E：prophylactic
F：redundant
答案：BC