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训练3 体裁：说明文 主题：地理现象 难度：★★★★★ 建议用时：9 min 正确率： /10
跨学科·地理（原创）In September, 2023, scientists around the world were puzzled by an unusual rumbling traveling through the Earth. It was a strong signal, but it wasn’t an earthquake. A year later, scientists solved the mystery. A landslide triggered a big tsunami, 1.
Scientists were confused. They had no idea what was causing the signal. “No one had ever seen this,” said a geologist from Denmark. Scientists began 3.
One strong clue was that seismographs showed a landslide crashing into Dickson Fjord on the east side of Greenland. A fjord is a long, thin channel of deep water 4.
A massive piece of rock—about five football fields long, and just as wide—fell off a mountain in eastern Greenland. The glacier(冰川) that had been supporting the rock 5.
When the glacier gave way, all the rock and ice went smashing(粉碎) down into Dickson Fjord. The result was a tsunami. 6.
But the scientists knew they were on to something. They began to wonder about a special kind of wave, called a seiche. A seiche is a special wave that bounces back and forth across an enclosed area, like a bathtub or a swimming pool. Once the scientists got more 8.
As unusual as this event was, scientists say we may see 9.
跨学科·地理（原创）In September, 2023, scientists around the world were puzzled by an unusual rumbling traveling through the Earth. It was a strong signal, but it wasn’t an earthquake. A year later, scientists solved the mystery. A landslide triggered a big tsunami, 1.
which
became a powerful bouncing wave. The strange signal lasted for nine days, then 2. slowly
(slow) went away.Scientists were confused. They had no idea what was causing the signal. “No one had ever seen this,” said a geologist from Denmark. Scientists began 3.
calling/to call
(call) the signal an “Unidentified Seismic Object(不明地震物体)”, or USO.One strong clue was that seismographs showed a landslide crashing into Dickson Fjord on the east side of Greenland. A fjord is a long, thin channel of deep water 4.
surrounded
(surround) by tall cliffs.A massive piece of rock—about five football fields long, and just as wide—fell off a mountain in eastern Greenland. The glacier(冰川) that had been supporting the rock 5.
was melting
(melt) because of climate change.When the glacier gave way, all the rock and ice went smashing(粉碎) down into Dickson Fjord. The result was a tsunami. 6.
The
tsunami also showed up on seismographs, but it didn’t explain the unusual signal, which 7. had continued
(continue).But the scientists knew they were on to something. They began to wonder about a special kind of wave, called a seiche. A seiche is a special wave that bounces back and forth across an enclosed area, like a bathtub or a swimming pool. Once the scientists got more 8.
detailed
(detail) information about the shape of the sea floor in the fjord, they were able to improve their computer model.As unusual as this event was, scientists say we may see 9.
more
(many) like it in the future. The landslide that started it all was triggered by climate change. 10. As
temperatures rise and glaciers melt, some mountains will become less stable, making such landslides more likely.答案
训练 3 【语篇解读】本文是一篇说明文，讲述了科学家在 2023 年 9 月在地震仪上检测到了不明波动。2024 年 9 月他们才发现是冰川融化导致的巨型海啸在峡湾之间来回拍动造成的波。
1. which 根据“A landslide triggered a big tsunami, ... became a powerful bouncing wave.”可知，空处在从句中作主语，前方的主句是完整的，此处是补充说明前面的 tsunami 的非限制性定语从句，故填 which。
2. slowly 根据后文动词短语“went away”可知，修饰动词的应当是副词，形容词 slow 的副词形式是 slowly，故填 slowly。 ＞＞副词的派生
3. calling/to call 根据前文的 began 可知，用 began doing sth.或 began to do sth.，故填 calling/to call。 ＞＞动名词/不定式
4. surrounded 根据“A fjord is a long, thin channel of deep water ... by tall cliffs.”可知，整句话主谓完整，所以这里是过去分词作后置定语，水被高崖环绕，故填 surrounded。 ＞＞过去分词
5. was melting 根据“The glacier that had been supporting the rock ... because of climate change.”可知，本句话缺少谓语动词，因此这里的 melt 是谓语，这里的语境是科学家们分析不明波动发生的同时冰川怎么了，所以用过去进行时，故填 was melting。 ＞＞动词的时态
技巧点拨
本句话 that 引导的是定语从句，修饰 glacier，我们在做题时可以不用看修饰性的部分，这时 melt 的谓语位置就能显现出来。
6. The 根据前文“The result was a tsunami.”可知，这里指的就是前文所说的由冰川融化引发的那场海啸，是特指，用定冠词，句首首字母大写，故填 The。
7. had continued 根据“but it didn't explain the unusual signal”可知这里指的是不明波动，这个不明波动在发生之后持续了九天，因此要用完成时，根据前文的时态是过去时，因此这里是过去完成时，故填 had continued。 ＞＞动词的时态
8. detailed 根据“Once the scientists got more ... information about the shape of the sea floor in the fjord”可知，这里是修饰 information 的，information 是名词，修饰名词要用形容词，detail 的形容词形式是 detailed，故填 detailed。 ＞＞形容词的派生
9. more 根据句意可知，虽然这个现象现在不常见，但是未来我们会见到更多，这里是比较级，故填 more。 ＞＞形容词的比较级
10. As 根据句意可知，随着温度升高、冰川融化，一些山脉将变得不那么稳定，更有可能发生山体滑坡，这里 as 表示伴随，句首首字母大写，故填 As。
1. which 根据“A landslide triggered a big tsunami, ... became a powerful bouncing wave.”可知，空处在从句中作主语，前方的主句是完整的，此处是补充说明前面的 tsunami 的非限制性定语从句，故填 which。
2. slowly 根据后文动词短语“went away”可知，修饰动词的应当是副词，形容词 slow 的副词形式是 slowly，故填 slowly。 ＞＞副词的派生
3. calling/to call 根据前文的 began 可知，用 began doing sth.或 began to do sth.，故填 calling/to call。 ＞＞动名词/不定式
4. surrounded 根据“A fjord is a long, thin channel of deep water ... by tall cliffs.”可知，整句话主谓完整，所以这里是过去分词作后置定语，水被高崖环绕，故填 surrounded。 ＞＞过去分词
5. was melting 根据“The glacier that had been supporting the rock ... because of climate change.”可知，本句话缺少谓语动词，因此这里的 melt 是谓语，这里的语境是科学家们分析不明波动发生的同时冰川怎么了，所以用过去进行时，故填 was melting。 ＞＞动词的时态
技巧点拨
本句话 that 引导的是定语从句，修饰 glacier，我们在做题时可以不用看修饰性的部分，这时 melt 的谓语位置就能显现出来。
6. The 根据前文“The result was a tsunami.”可知，这里指的就是前文所说的由冰川融化引发的那场海啸，是特指，用定冠词，句首首字母大写，故填 The。
7. had continued 根据“but it didn't explain the unusual signal”可知这里指的是不明波动，这个不明波动在发生之后持续了九天，因此要用完成时，根据前文的时态是过去时，因此这里是过去完成时，故填 had continued。 ＞＞动词的时态
8. detailed 根据“Once the scientists got more ... information about the shape of the sea floor in the fjord”可知，这里是修饰 information 的，information 是名词，修饰名词要用形容词，detail 的形容词形式是 detailed，故填 detailed。 ＞＞形容词的派生
9. more 根据句意可知，虽然这个现象现在不常见，但是未来我们会见到更多，这里是比较级，故填 more。 ＞＞形容词的比较级
10. As 根据句意可知，随着温度升高、冰川融化，一些山脉将变得不那么稳定，更有可能发生山体滑坡，这里 as 表示伴随，句首首字母大写，故填 As。
