《2025年学霸题中题八年级英语上册译林版》

A
What can trees tell us about climate change? Quite a lot, actually! But to understand what the trees tell us, we first have to understand the difference between weather and climate.
Weather is a specific (具体的) event—like a rainstorm or hot day—that happens over a short period of time. Weather can be tracked (追踪) within hours or days. Climate is the weather conditions in a place over a long period of time (30 years or more).
Scientists at the National Weather Service have been keeping track of weather in the United States since 1891. But trees can keep a much longer record of the earth's climate. In fact, trees can live for hundreds—and sometimes even thousands of years.
One way that scientists use trees to learn about past climate is by studying a tree's rings. If you've ever seen a tree stump (树桩), you probably noticed that the top of the stump had some rings.
These rings can tell us how old the tree is, and what the weather was like during each year of the tree's life. The light-coloured rings represent wood that grew in spring and early summer, while the dark rings represent wood that grew in late summer and autumn. One light ring and one dark ring represent one year of the tree's life.
Because trees can be easily influenced by local climate conditions, such as rain and temperature, they give scientists some information about that area's local climate in the past. For example, tree rings usually grow wider in warm, wet years and they are thinner in years when it is cold and dry. If the tree has experienced difficult conditions, such as a drought (干旱), the tree might hardly grow at all in those years.
1. 新考法 写作手法 Paragraph 2 is developed mainly by ______.
A. making comparisons
B. telling stories
C. showing causes
D. following the time order
2. Dark rings would appear when the tree grew in ______.
A. spring
B. early summer
C. autumn
D. late winter
3. The underlined word “influenced” in the last paragraph means “______”.
A. used
B. changed
C. polluted
D. protected
4. 新考法 图示理解 Which picture shows the rings in dry seasons?

A.
B.
C.
D.
5. 语言能力 归纳能力 What is the text mainly about?
A. The life of a tree.
B. Tree rings and seasons.
C. The need to plant trees.
D. Trees and climate change.

答案： 1 - 5 ACBCD
A
【语篇解读】本文是一篇说明文，主要介绍了天气和气候的不同，以及树木的年轮所反映的生长环境的气候变化。
1. A 写作手法题。根据“Weather is a specific event”及“Climate is the weather conditions in a place over a long period of time”可知，第二段比较了 weather 和 climate 这两个概念的差异，故选 A。
2. C 细节理解题。根据“while the dark rings represent wood that grew in late summer and autumn”可知，深色的年轮代表了夏末和秋天生长的树木，故选 C。
3. B 词义猜测题。根据“Because trees can be easily influenced by local climate conditions, such as rain and temperature”及“For example, tree rings usually grow wider in warm, wet years and they are thinner in years when it is cold and dry.”可知，正因为树木易受周围环境影响，所以才能给人们了解气候变化提供信息，所以画线单词与“changed”词义相近，故选 B。
4. C 图示理解题。根据“... and they are thinner in years when it is cold and dry.”可知，在干燥的年份，年轮会变薄，C 图片符合，故选 C。
5. D 主旨大意题。通读全文可知，本文主要介绍了天气和气候的不同，以及树木的年轮所反映的生长环境的气候变化，故选 D。