四、(跨地理·地球自然现象、气候变化及地理影响)(2025·南通期末模拟)阅读理解。
Scientists believe the earth is about 4.6 billion years old. However, the mountains，valleys (山谷)，hills，rivers，deserts and forests we see today are much younger than that.
The earth is always changing because of volcanoes，earthquakes and of course，wind and rain. Some of these changes are very slow and others are quick. Water and ice can make very great changes to our planet. For example，rivers of ice can cut through mountains and make lakes and deep valleys. Many volcanoes are under the oceans and sometimes they become new islands (岛屿).
It's normal for our planet to change，but at the moment，scientists think it's changing faster than usual. Some deserts are growing and many forests are getting smaller. The weather is getting wetter in some places and drier in others，and there are more big storms. Then the sea level will go on rising in the next hundred years. As a result，many cities will possibly be covered by water and many of the farming areas will be lost. Some island countries may disappear (消失) in the world.
These changes will bring great harm (伤害) to the planet. However，they can be beneficial to some people. For example，as the Arctic (北极) is getting warmer，some people in Greenland now own businesses and sell vegetables they grow on their land. That wasn't possible in the far north 50 years ago. Farmers in Greenland like the warm weather and hope it will continue.
1. From Paragraph 3，we can mainly learn about .
A. the age of the earth
B. problems of the earth
C. the life of the farmers
D. the importance of the mountains
2. The underlined word "beneficial" is the closest in meaning to "".
A. harmful
B. normal
C. helpful
D. powerful
3. Which subject will give you the information above?
A. Art.
B. Maths.
C. Music.
D. Geography.

五、书面表达。
大自然有许多令人惊叹的奇观。九寨沟以其壮丽的自然景观闻名遐迩。请你根据提示，用英语介绍九寨沟。
提示：1. 位于四川省西北部；最令人惊叹的自然景观之一；2. 大面积的森林……；有着清澈见底的湖泊，镶嵌在森林之中；3. 春天是九寨沟最美的时节；冰雪融化 (melt)，山花烂漫……；4. 感想。