Во-первых, причиной вечной мерзлоты являются более низкие отрицательные температуры. Во-вторых, в тех районах, где климат был сухим и морозным, а толщина наземного ледникового покрова была незначительна, а то и вообще не образовывалась, произошло промерзание грунтов. В-третьих, в мерзлых породах лед становится своеобразным породообразующим минералом. В следствие чего ледяные включения в горных породах земной коры называют ископаемым льдом. Причины возникновения различны: замерзание воды в толще мерзлотных грунтов; засыпание горных ледников осыпями. В-четвёртых, большее выхолаживание в течение холодного периода года. Около 65% территории России покоится на вечной мерзлоте.
Упр. 229. Раскройте скобки, употребляя глаголы в одном из следующихвремен: Present, Past, Future Simple; Present, Past Continuous; Present, Past Perfect. It was eight o'clock in the morning and time for me to go to work. I looked out of the window. It was raining hard. "You will get wet through if you go out now,"said my mother. "No, I won't ," I answered, "I will take an umbrella." We have five umbrellas in the house, but when I wanted to take one, I found that there was not one that I could use: they all were torn or broken. So I took them all and carried them to the umbrella-maker, saying that I would call for theumbrellas on my way home in the evening. When I went to have lunch in theafternoon, it still was raining very hard. I went to the nearest cafe, and sat down at a table. A few minutes later a young woman came in and sat down at the same table with me. When I had finished my lunch and was ready to leave, Iabsent-mindedly took her umbrella and started for the exit. She stoped me saying that I had taken her umbrella. I returned the umbrella with many apologies.In the evening I went to the umbrella-maker, took my five umbrellas and got on the tram to go home.
Во-первых, причиной вечной мерзлоты являются более низкие отрицательные температуры. Во-вторых, в тех районах, где климат был сухим и морозным, а толщина наземного ледникового покрова была незначительна, а то и вообще не образовывалась, произошло промерзание грунтов. В-третьих, в мерзлых породах лед становится своеобразным породообразующим минералом. В следствие чего ледяные включения в горных породах земной коры называют ископаемым льдом. Причины возникновения различны: замерзание воды в толще мерзлотных грунтов; засыпание горных ледников осыпями. В-четвёртых, большее выхолаживание в течение холодного периода года. Около 65% территории России покоится на вечной мерзлоте.
Упр. 229. Раскройте скобки, употребляя глаголы в одном из следующихвремен: Present, Past, Future Simple; Present, Past Continuous; Present, Past Perfect. It was eight o'clock in the morning and time for me to go to work. I looked out of the window. It was raining hard. "You will get wet through if you go out now,"said my mother. "No, I won't ," I answered, "I will take an umbrella." We have five umbrellas in the house, but when I wanted to take one, I found that there was not one that I could use: they all were torn or broken. So I took them all and carried them to the umbrella-maker, saying that I would call for theumbrellas on my way home in the evening. When I went to have lunch in theafternoon, it still was raining very hard. I went to the nearest cafe, and sat down at a table. A few minutes later a young woman came in and sat down at the same table with me. When I had finished my lunch and was ready to leave, Iabsent-mindedly took her umbrella and started for the exit. She stoped me saying that I had taken her umbrella. I returned the umbrella with many apologies.In the evening I went to the umbrella-maker, took my five umbrellas and got on the tram to go home.