六级练习2012.05.28 century, attention, question, survival, general

Rebecca949

If the earth gets hotter in the new century, what will happen to animals and the plants which animals depend on for survival? The question offers another way of looking at the “(1)_______________”. People have talked about the general problem of “Global Warming” for some time. But they were usually worried about things (2)_______________________.
Biologists and other scientists turn their attention to plants and animals at an important meeting that took place last October. They were reviewed evidence that plants and animals are sensitive to climate. (3)__________________________and warmer temperatures returned to the northern latitudes, many species have migrated north.

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susan.sui

1.greenhouse effect
2.like whether to buy a home at all cost
3. since the ice age at ten thousand years ago