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选修⑥
Module 6
单元主题语篇训练
I,阅读理解
Questions remain,including how the microbes
A
interact with chemical processes and what this might
Earth is far more alive than we previously reveal about how life and Earth coevolved.
thought,according to"deep life"studies that reveal 1.What do the scientists find about the underground
a rich ecosystem beneath our feet that is almost
organisms?
twice the size of all the world's oceans.Despite
A.They can't reproduce and divide.
extreme heat,no light and intense pressure,:
B.They're the oldest living things.
scientists estimate it has between 15 billion and 23:
C.Some of them consume no energy.
billion tonnes of microorganisms."It's like finding a
D.Some of them almost always keep still.
whole new reservoir (of life on Earth,"said:2.What can we learn about the research from
Karen Lloyd,an associate professor at the
Paragraph 3?
University of Tennessee.
A.It lasts for around one year.
Results suggest 70 percent of Earth's bacteria
B.It involves efforts from multiple fields.
and archaea exist in the subsurface.One organism
C.It promotes technical development.
found 2.5 kilometers below the surface has been
D.It is condueted in 52 countries.
buried for millions of years and may not rely at all on3.Why do the scientists drill deep?
energy from the sun..Also,the methanogen(产甲烷:A.To break their previous record..
has found a way to create methane in this
B.To find the depth limit of life.
environment,which it may not use to reproduce or
C.To discover more ancient microorganisms.
divide,but use to replace or repair broken parts.
D.To detect the highest subsurface temperature.
Lengths of their lives are completely different.Some4.Which of the following is a suitable title for the
microorganisms have been alive for thousands of:
text?
years,barely moving except shifts in earthquakes or
A.Earth's Depths Are Full of Life
eruptions.They're just active inside,with less;
B.Organisms Live Better Underground
energy than people thought possibl