国产精品三级电影,香蕉视频一区二区三区,天天干天天谢

主頁>托福TPO>正文

托福|TPO35綜合+獨立寫作

2017/4/17 14:59:21來源：新航道作者：新航道

雅思/托福/國際備考寒假班

托福?？?，最新時間出爐！

多鄰國英語考試-2024國際學校及出國留學考試新選擇

摘要：?上海新航道托福小編為托?？忌鷤儨蕚淞送懈＞C合寫作TPO35,希望各位考生們在TPO寫作真題里能夠得到鍛煉，祝廣大托?？忌軌蛉〉美硐氤煽?。

上海新航道托福小編為托?？忌鷤儨蕚淞送懈懽鱐PO35,希望各位考生們在TPO寫作真題里能夠得到鍛煉，祝廣大托?？忌軌蛉〉美硐氤煽儭?

綜合寫作閱讀

This continent of Antarctica, centered on Earth’s South Pole, is one of the world’s coldest areas, supporting a very limited range of plants and animals. Some scientists believe, however, that around 15 million years ago, during the geologic period called the Middle Miocene, Antarctica was as much as 11%C warmer than it is today, and it supported much richer ecosystems, including much more diverse plant life. They have several arguments to support that claim.

Pollen Grains

First, there is the evidence of pollen grains, small particles that plants release when they reproduce. Pollen grains from two types of trees dating to 15million years ago have been found on the coast of Antarctica. Trees typically require much higher temperatures than the plants that currently grow in Antarctica. The presence of trees indicates that the plant life in Antarctica was much richer during the Middle Miocene, and that the temperature in Antarctica was therefore much higher than it is today.

Carbon Dioxide

There is also some indication that carbon dioxide (CO2) levels in the atmosphere were elevated during the Middle Miocene. Carbon dioxide is linked to climate warming because it traps heat. An important source of CO2 is volcanic activity. There were major volcanic eruptions during the Miocene. That suggests that atmospheric CO2 levels were higher than they are today, which would have contributed to the warming of the Antarctic climate.

Deuterium and Increased Rainfall

Third, high levels of deuterium have been found in the remains of plants that grew in Antarctica 15 million years ago. Deuterium is a chemical element present in rainwater. Since plants absorb deuterium when it rains, the amount of deuterium in a plant usually indicates the amount of rainfall: high levels of deuterium in the Antarctic plants from the Middle Miocene indicate high amounts of rainfall. High amounts of rainfall are often caused by increased temperatures.

托福TPO35獨立寫作Question:

Do you agree or disagree with the following statement?

In twenty years there will be fewer cars in use than there are today.

Use specific reasons and examples to support your answer.

以上就是小編為大家帶來關于托福TPO閱讀資料供大家閱讀參考，新航道托福資料頻道將第一時間為考生發布最全、最新、最專業的托福資訊及托福考試資料及機經.

免費獲取資料