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九年级英语
第I卷（选择题，共70分）
第一部分阅读理解（共20小题，每小题2分，满分40分）
阅读下面短文，从每题所给的A、B、C和D四个选项中，选出最佳选项，并在答题卡上
将该项涂黑。
A
What can trees tell us about climate change
Trees are essentially nature's data scientists.Without Wi-Fi,they have been
recording environmental data for thousands of years.Here is how these woody
historians tell us the story of eur changing planet.
First Year Growth
Ring:You may find that the top of the stump(树朴，has many rings..
These rings can tell us how old the tree is,and w hat the weather was like
during each year of the tree's life.
Tree rings usually grow wider in warm,wet years and are thinner in
years when it is cold and dry.If the tree has experienced hard times,such
as a drought(千早)，the tree might hardly grow at all in those years.
Earlywood (Light color):Grows quickly in the spring when water is
plentiful.
Latewood (Dark color):Grows more slowly in the late summer and
autumn as conditions become harsher.
One light ring and one dark ring make one year of the tree's life.
Fire Scar:
The fire leaves a"scar"in the ring of that year.An increase in fire scars
in recent rings tells us the land is becoming drier and flammable(易然的)，
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