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However, a further increase in farming area without impacting unfavourably on what remains of the world's natural ecosystems appears unlikely.

出自-2013年12月阅读原文

A further expansion of farming area will adversely impact on the world's natural ecosystems

出自-2013年12月阅读原文

As such, they are key species for understanding and predicting impacts of global change on Antarctic and sub-Antarctic marine ecosystems.

2019年12月六级真题（第三套）阅读 Section C

Because if we aren't, we won't be providing much value in future ecosystems, and that may put in question the foundation for our existence.

2019年6月六级真题（第三套）阅读 Section C

But today's report is the starkest warning yet of the potentially devastating impact of climate change and human exploitation on the Antarctic's delicate ecosystems.

2019年12月六级真题（第三套）阅读 Section C

Companies that have long focused on hardware now have to think of ecosystems instead to give consumers practical solutions to their everyday problems.

2016年12月六级真题（第二套）阅读 Section B

From the standpoint of a traditional educator, this outcome indicated that schooling had failed to help students think about ecosystems and extinction, major scientific ideas.

2015年12月六级真题（第二套）阅读 Section C

It is home to one of the world's finest marine ecosystems,with more than 1,300 species of fish and 700 species of coral.

2017年12月六级真题（第二套）阅读 Section A

Managing ecosystems sustainably is more profitable than exploiting them, according to the millennium Ecosystem Assessment.

2016年6月六级真题（第三套）阅读 Section B

migrating birds affect ecosystems both at home and at their winter destinations, and disrupting the traditional routes could have unexpected side effects.

2017年6月六级真题（第三套）阅读 Section C

Penguins are sensitive indicators of changes in marine ecosystems.

2019年12月六级真题（第三套）阅读 Section C

Penguins, like other seabirds and marine mammals, occupy higher levels in the food chain and they are what we call bio-indicators of their ecosystems.

2019年12月六级真题（第三套）阅读 Section C

The millennium Ecosystem Assessment, a vast four-year global study which reported its initial conclusions earlier this year, found reasons to believe that managing ecosystems sustainably—working with nature rather than against it—might be less profitable

2016年6月六级真题（第三套）阅读 Section B

By connecting directly with customers, and by responding quickly to changes in the markets as well as in the ecosystems (生态系统), small farmers can keep one step ahead of the big guys.

2018年高考英语江苏卷 阅读理解 阅读C 原文

It is the rules governing food webs of the ecosystems.

2019年高考英语天津卷 阅读理解 阅读C 选项

Mathematical models have also revealed that food webs may be unstable, where small changes of top predators can lead to big effects throughout entire ecosystems.

2019年高考英语天津卷 阅读理解 阅读C 原文

Prevention is key, scientists says because once ecosystems pass their tipping point, it is remarkably difficult for them to return.

2019年高考英语天津卷 阅读理解 阅读C 原文

This view is especially evident on kilimanjaro as climbers go through five ecosystems in the space of a few kilometers.

2019年高考英语全国卷I 完形填空 原文

Uncontrolled human activities greatly upset ecosystems.

2019年高考英语天津卷 阅读理解 阅读C 选项

They did not always prioritize the protection of Mauna Kea's fragile ecosystems or its holiness to the islands'inhabitants.

2017年考研真题（英语一）阅读理解 Section Ⅱ