قمة بيرتو مورينو الجليدية جنوبي الارجنتين.

قطع كبيرة من الألواح الجليدية تصطدم بقوة في بحيرة أرجنتينا التي تقع في مقاطعة باتغونيا.

وتشكل القمة الجليدية بشكل دوري سداً يشق البحيرة إلى نصفين، وبتأثير الضغط المتشكل، فإن قطعاً

جليدية كبيرة تتساقط في البحيرة.

ويزور السياح المتنزه الوطني للاستمتاع بمشاهدة المنظر الخلاب لتكسر الجليد الذي يتكرر كل خمس

The Perito Moreno glacier in Southern Argentina.

Huge sections of a massive ice wall have crashed into Lake Argentina in the Patagonia region of the country.

Periodically the glacier forms a dam separating the lake into two. Eventually pressure builds up and enormous chunks of ice fall into the lake.

Tourists visiting the national park enjoyed watching this spectacular ice rupture which occurs every four to five years.

glacier – mass of ice formed by accumulated snow قمة جليدية

crashed into – violently fell into اصطدم

periodically – from time to time بشكل دوري

dam – a barrier that controls water flow سد

rupture – when something breaks تكسر

Use one of the words or phrases below to complete each of these sentences from BBC news reports.

Note that you may have to change the form of a word to complete the sentence correctly.

glacier / crashed into / periodically / dam / rupture

1. Viral infections have __________ wiped out the crop in some regions leading to famine.

2. Experts now say melting glaciers put pressure on an ice wall that acted as a __________, causing it to give way.

3. Scott described the last moments of Evans’s life, writing: “His downward path was accelerated first by the shock of his frostbitten fingers, and later by falls during rough travelling on the __________.”

4. If it slips into deeper water, fuel tanks could __________ threatening one of the most unspoilt parts of the Mediterranean.

5. The crew were returning from a mission over Norway, but their Beaufort Bomber had been hit by enemy fire and __________ the sea more than 100 miles from home

1. Viral infections have periodically wiped out the crop in some regions leading to famine.

2. Experts now say melting glaciers put pressure on an ice wall that acted as a dam, causing it to give way.

3. Scott described the last moments of Evans’s life, writing: “His downward path was accelerated first by the shock of his frostbitten fingers, and later by falls during rough travelling on the glacier.”

5. The crew were returning from a mission over Norway, but their Beaufort Bomber had been hit by enemy fire and crashed into the sea more than 100 miles from home.