According to scientists, to keep down concentrations of greenhouse gases, we should ______
A.stop gas emissions
B.lower the temperature
C.reduce the use of coal, oil, and gas
D.cut off the use of coal, oil, and gas
A.stop gas emissions
B.lower the temperature
C.reduce the use of coal, oil, and gas
D.cut off the use of coal, oil, and gas
第1题
As to the greenhouse effect, the author
A.shares the same view with the scientists
B.is uncertain of its occurrence
C.rejects it as being ungrounded
D.thinks that it will destroy the word soon
第2题
听力原文: Voice One: A bottlenose dolphin named Maui plays a computer game, helping scientists create a unique language [that] they hope humans and dolphins will understand.
It's not based on human words, but on a specific dolphin sound. Guess which one. Not its bark, or its clicks, made famous by Flipper. Words in this new language are whistled.
Dolphins typically whistle to each other under water, through a special structure just beneath their blowhole. Researchers say their whistles have meaning. For example, each dolphin learns from its mom its own signature whistle. So in human terms when they greet each other, it's not just, "Hi" It's, "Hi, my name is ..."--in this case, Maui.
Ken Marten and his team at Earthtrust in Sea Life Park Research Lab in Hawaii want to better understand how dolphins communicate. So for the next ten years, they will literally whistle while they work, creating this special language.
Voice Two: The rest of my career is dedicated to talking to these guys, so I guess you could call me Doctor Dolittle now.
Voice One: After studying dolphin whistles, Marten invented distinct whistles for various objects with which dolphins are familiar.
Which sound can be thought as dolphin's words?
A.Its bark.
B.Its clicks.
C.Its whistle.
D.Its crying.
第3题
______ can be a "treat", according to the text.
A.Candy
B.Flour
C.Noise
D.Costume party
第4题
According to the passage, the author had a predisposition for panic.
A.Y
B.N
C.NG
第5题
According to the passage, "dwindle" means______.
A.decrease
B.enlarge
C.weaken
D.eliminate
第6题
According to the Context rule, weather-speak can be used as a simple greeting, ________, and a filler.
第7题
We should cultivate these children according to their innate abilities.
A.celestial
B.different
C.splendid
D.inherent
第8题
According to the text, Beth replied to the writer______.
A.uncooperatively
B.sympathetically
C.considerately
D.impatiently
第9题
Chinese's labour, according to Louis-Dreyfus, is half price as that in Europe.
A.Y
B.N
C.NG
第10题
Copolymers are classified into four subgroups: ______ 、 ______、 ______ 、 ______ according to the ordered degree of molecular arrangement.