2017/4/17 14:59:21来源:新航道作者:新航道
摘要: 上海新航道托福小编为托福考生们准备了托福综合写作TPO35,希望各位考生们在TPO写作真题里能够得到锻炼,祝广大托福考生能够取得理想成绩。
上海新航道托福小编为托福考生们准备了托福写作TPO35,希望各位考生们在TPO写作真题里能够得到锻炼,祝广大托福考生能够取得理想成绩。
综合写作阅读
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独立写作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.
以上就是小编为大家带来关于托福TPO阅读资料供大家阅读参考,新航道托福资料频道将第一时间为考生发布最全、最新、最专业的托福资讯及托福考试资料及机经.
请加COCO老师(微信号:shnc_2018)
百人留学备考群,名师答疑,助教监督,分享最新资讯,领取独家资料。扫码免费加入
免费获取资料
热门搜索: 上海托福培训机构哪个好| 上海托福封闭班| 上海托福培训| 托福TPO1-74下载| 上海托福住宿班|
免责声明
1、如转载本网原创文章,情表明出处
2、本网转载媒体稿件旨在传播更多有益信息,并不代表同意该观点,本网不承担稿件侵权行为的连带责任;
3、在本网博客/论坛发表言论者,文责自负。
制作:每每