What causes Amber to pursue her acting career?A.Desire plus talents.B.Desire plus family b
What causes Amber to pursue her acting career?
A.Desire plus talents.
B.Desire plus family background.
C.Fame plus desire.
D.Music plus talents.
What causes Amber to pursue her acting career?
A.Desire plus talents.
B.Desire plus family background.
C.Fame plus desire.
D.Music plus talents.
第1题
What is NOT mentioned as a feature of the latest edition of the guidebook?
A.A drawing by Amber Woods
B.Photographs contributed by local people
C.Information about a plantation
D.Maps printed in color
第2题
A.Y
B.N
C.NG
第3题
听力原文: I'm going to pass this piece of amber around so you can see this spider trapped inside it. It's a good example of amber-inclusion, one of the inclusions that scientists are interested in these days. This particular piece is estimated to be about 20 million years old. Please be extremely careful not to drop it. Amber shatters as easily as glass. One thing I really like about amber is its beautiful golden color.
Now, how does the spider get in there? Amber is really fossilized tree resin. Lots of chunks of amber contain insects like this one or animal parts like feathers or even plants. Here is how it happens. The resin oozes out of the tree and the spider or leaf gets in cased in it. Over millions and millions of years, the resin hardens and fossilizes into the semiprecious(次珍贵的、准宝石的) stone you see here.
Ambers can be found in many different places around the world. But the oldest deposits are right here in the United States, in Appalachia(阿巴拉契亚). It's found in several other countries, too, though right now scientists are most interested in ambers coming from the Dominican Republic(多美尼加共和国). Because it has a great many inclusions, something like one insect inclusion for every one hundred pieces. One possible explanation for this it that the climate is tropical and a greater variety of number of insects thrive in tropics than in other places. What's really interesting is the scientists are now able to recover DNA from these fossils and study the genetic material for important clues to revolution.
(39)
A.So they can feel its weight.
B.So they can examine its contents.
C.So they can guess its age.
D.So they can admire its beautiful color.
第4题
What is the substance in cigarettes that causes cancer?
A.Cigarette ashes.
B.Nicotine.
C.Tar.
D.Not mentioned here.
第5题
What is the best title for this passage?
A.The Causes of Industrial Revolution.
B.The Industrial Revolution and Its Significance.
C.The Theory of Division of Labour and Its Significance.
D.Adam Smith, the Economist and Philosopher.
第6题
What are the possible causes of colony-collapse disorder given by the scientists?
A.Worsening environment.
B.Disease and chemicals.
C.Dwindling number of flowers around.
D.Changes in genes' structures.
第7题
What is people's attention turning to today according to the passage?
A.The causes of traffic accidents.
B.The driver.
C.The roadway.
D.The car.
第8题
According to the passage what causes tidal waves?
A.Earthquake
B.Storms.
C.Seaquake.
D.Tides.
第9题
According to the passage what causes tidal waves?
A.Earthquake.
B.Storms.
C.Seaquake.
D.Tides.
第10题
What is the passage mainly about?
A.Several worldwide economic problems.
B.The causes and consequences of trade deficit.
C.Lack of resources in underdeveloped countries.
D.The value of exports against imports.