[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]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]Scientists generally agree that the Earth's climate will warm up over the next 50 to 100 years ______it has warmed in the 20,000 years since the Ice Age.


A. as long as
B. as much as
C. as soon as
D. as well as

[单项选择]　Black Holes 　　Most scientists agree that black holes exist but are nearly impossible to locate.A black hole in the universe is not a solid object,like a planet,but it is shaped like a sphere (球体).Astronomers(天文学家)think that at the center of a black hole there is a single point in space with infinite(无限的)density(稠密).This single point is called a singularity (奇点).If the singularity theory is correct,it means that when a massive star collapses,all the material in it disappears into the singularity.The center of a black hole would not really be a hole at all,but an infinitely dense point.Anything that crosses the black hole is pulled in by its great gravity. 　　Although black holes do exist,they are difficult to observe.These are the reasons. 　　● No light or anything else comes out of black holes.As a result,they are invisible to a telescope. 　　● In astronomical terms,black holes are truly.For example,a black hole formed by the collapse of a giant star would have an event horizon(视
A. Right
B. Wrong
C. Not mentioned

[单项选择]While most scientists agree that the greenhouse effect is coming, there are not enough data yet to say with absolute ______ what its consequences will be.


A. confirmation
B. conformity
C. conviction
D. conscience

[简答题]Scientists agree that it will be a long time _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ (我们找到治愈癌症的方法).

[单项选择]All experts agree that the most important consideration with diet drugs is carefully （　） the risks and benefits.
A. weighing
B. valuing
C. evaluating
D. distinguishing

[单项选择]All specialists agree that the most important consideration with diet drugs is carefully ______ the risks and benefits.
A. valuing
B. evaluating
C. estimating
D. weighing

[单项选择]I agree with most of what you said, but I don't agree with ______.


A. everything
B. anything
C. something
D. nothing