超星 - Unit8 TextA 作业

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（Unit8）And when we struggle to retain a handful of California condors or whooping cranes, it's clearly not from a fear of ecological collapse, it's because there is something obscene and frightening about the disappearance of another species at our hands.Question: What does "the disappearance of another species at our hands" mean?

A. We are holding some animals in our hands.
B. Some species are in extinction because we are not feeding them.
C. Some speicies can not be seen because we are covering our eyes with our hands.
D. We are directly responsible for the extinction of endangered speicies.

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Does it matter whether we sense our place in nature so long as we have cities and technology? Yes, for many reasons, not the least of which is that virtually all scientists were fascinated with nature as children and retained that curiosity throughout their lives.How to understand the underlined phrase?

A. the least important reason
B. the most important reason
C. one of the most important reasons
D. one of the least important reasons

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We remain every bit as dependent upon nature today — we need plants to fix photons of energy into sugar molecules and to cleanse the air and replenish the oxygen.How to understand the underlined sentence?

A. Today, we are dependent on nature.
B. Nowadays, we totally depend on nature as we did before.
C. We were dependent on nature before.
D. Nowadays, we don't rely on nature.

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“It’s not easy to avoid giving these hidden lessons. I have struggled to cover my dismay and queasiness when Severn and Sarika come running in with a large wolf spider or when we’ve emerged from a ditch covered with leeches or when they have been stung accidentally by yellow jackets feeding on our leftovers. But that’s nature. I believe efforts to teach children to love and respect other life forms are priceless. ”Question： How did the author react when his children came running in with a large wolf spider or when they have been stung accidentally by yellow jackets.

A. He told his children to love and respect other life forms.
B. He was fascinated with the wolf spider.
C. He struggled to cover his dismay and queasiness.
D. He threw away the leftovers that fed the yellow jackets.

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