《2025年教与学课程同步讲练九年级英语全一册人教版》

Read the passage and complete the following tasks.
The scientists discovered that the land under the ice of the South Pole is full of hills and valleys. This secret world is greatly large, covering across 12,000 square miles. It is even larger than the whole country of Belgium. Time seems to stop in this frozen world, keeping its secrets for millions of years.
To explore this hidden land, scientists used a cool technology called radio-echo sounding. It's like sending waves from a special plane flying high above Antarctica. These waves bounce off the land below, creating a kind of map. The scientists then study this map to learn more about what's hidden under the ice. It's a bit like using a magic wand to uncover the hidden.
Scientists also looked at satellite images. Satellites are like our eyes in the sky. By studying these images and the radio wave map, a picture of the land under the ice appeared.
This hidden world wasn't always icy and cold. A long, long time ago, before the ice took over, it was a lively place with rivers, hills, and even forests. Animals probably walked around, enjoying the landscape. But then, something unexpected happened. The land got covered in ice, freezing everything in time like an ice sculpture. This freezing event happened more than 34 million years ago, making it a truly ancient landscape.
Now, scientists are not just wondering about the past； they're also worried about the future. They're concerned about global warming. The worry is that the ice in Antarctica might melt. Even though the Earth was warmer in the past, scientists hope it won't get too warm too quickly.
Yet, the mysteries continue. It's like a never-ending story, where every fact that people discover opens the door to more questions about our planet's past and future.
A. Choose the best answer.
1. How did scientists "see" under the ice in Antarctica? ( )

A.By using a magic wand.
B.By traveling around the Earth.
C.By taking pictures.
D.By studying satellite images and the radio wave map.
B. Fill in the blanks.
2. Look! The forest is covered ______ thick white snow.
3. Several ______(百万)netizens have viewed the post and give it thumbs up.
C. Answer the question.
4. What's the main purpose of the passage?______
radio-echo n. 无线电回波 bounce v. 弹起;反射 take over 接管
never-ending adj. 永无止境的

答案： D
@@with
@@million
@@To introduce the research on the hidden world under the Antarctic ice sheet.