For example, one who doesn't know the rules a about plagiarism (剽窃) may accidentally use words or ideas without giving proper credit or one who fails to keep careful research notes may unintentionally fail to quote and cite sources as required.

出自-2011年12月阅读原文

But experts say that even when combined , alternative energy sources will likely meet only about 30% of the world's energy needs by

出自-2011年12月阅读原文

For example, even with significantinvestments, such as the $93 million for wind energy development included in the American Recovery and Reinvestment Act, important alternative energy sources such as wind and bio-fuels comprise only about 1% of the market today

出自-2011年12月阅读原文

In some cases, schools should help children find new, more grown-up ways of doing the same things that are constant sources of joy: making art, making friends, making decisions.

2015年12月四级真题（第一套）阅读 Section B

Indoor pollution, which includes sources like home heating and cooking, has remained constant over the past several decades despite advances in the area.

2018年12月四级真题（第一套）阅读 Section A

millions of irrigation wells in many countries are now pumping water out of underground sources faster than rainfall can refill them.

2016年6月四级真题（第一套）阅读 Section B

The extensive data sources, combined with computer simulations, created a timeline of ocean temperature changes, including cooling from volcanic outbreaks and warming from fossil fuel emissions.

2016年12月四级真题（第二套）阅读 Section A

Wells are much more reliable sources of freshwater, and California is hoping that these deep wells may be the answer to their severe water shortage.

2018年12月四级真题（第一套）阅读 Section C

witnesses said people were looking on in horror, as the child's mother, identified by sources as Maria Samara, stood frozen in shock.

2016年12月四级真题（第二套）听力 Section B

By 1973, domestic US sources of oil were peaking, and the nation was importing more of its oil, depending on a constant flow from abroad to keep cars on the road and machines running.

出自-2013年6月阅读原文

These included developing additional domestic sources (such as those on Alaska's North Slope), resuming extraction at sites that had been shut down because of cost inefficiency, capping the price that domestic producers could charge for oil, and beginning to import oil from a greater diversity of nations

出自-2013年6月阅读原文

They believe such a diet which includes no products from animal sources can be deficient in many of the necessary vitamins and minerals our bodies need.

出自-2013年6月听力原文

A tax on upstream carbon sources is one easy way to put a price on carbon emissions, although some countries may wish to use other methods, such as emissions trading schemes.

2017年6月六级真题（第一套）阅读 Section B

And if the sources don't give you an accurate depiction, your stereotype won't be accurate.

2017年12月六级真题（第二套）听力 Section C

As lighting expert Howard Brandston points out, " Generally, there are no bad light sources, only bad applications. "

2015年12月六级真题（第一套）阅读 Section B

But a lot of information we get about human groups is through biased sources, like how they are represented in the media.

2017年12月六级真题（第二套）听力 Section C

By raising relative demand for clean energy sources, a carbon price would also help align the market return to clean-energy innovation with its social return, spurring the refinement of existing technologies and the development of new ones.

2017年6月六级真题（第一套）阅读 Section B

Coal and natural gas are mainly used for electricity generation, whereas oil is used mostly to power transportation, yet the prices of all these energy sources are linked.

2017年6月六级真题（第一套）阅读 Section B

For example, the United Arab Emirates has endorsed an ambitious target to draw 24% of its primary energy consumption from renewable sources by 2021.

2017年6月六级真题（第一套）阅读 Section B

From other sources, we also know teenage crime, drug abuse and premarital sex are in general decline.

2016年6月六级真题（第一套）阅读 Section B

Maybe you could gather capital from other sources, smaller loans from more lenders?

2019年12月六级真题（第二套）听力 Section A

Notwithstanding important recent progress in developing renewable fuel sources, low fossil fuel prices could discourage further innovation in, and adoption of, cleaner energy technologies.

2017年6月六级真题（第一套）阅读 Section B

Soon after launching EPIC'S most successful product - the Bison Bacon Cranberry Bar - Collins and Forrest found they'd exhausted their sources for Bison raised exclusively on pasture.

2019年12月六级真题（第三套）阅读 Section B

The 83% of American employees who are stressed about their jobs – up from 73% just a year before – say that poor compensation and an unreasonable workload are their number-one sources of stress.

2016年12月六级真题（第一套）阅读 Section B

The current low fossil fuel price environment will thus certainly delay the energy transition from fossil fuel to clean energy sources.

2017年6月六级真题（第一套）阅读 Section B

Vegans can benefit from protein supplements since they do not eat animal-based protein sources like meat, dairy or eggs.

2019年12月六级真题（第二套）阅读 Section B

David Brooks, author of the Social Animal: the Hidden Sources of Love,Character, and Achievement, appears to be the latest in a long line of writers who have failed to resist the temptation.

2015年高考英语湖北卷 阅读理解 阅读E 原文

Deer and elk populations — major food sources for the wolf – grew rapidly.

2017年高考英语全国卷3 阅读理解 阅读C 原文

Instead, you can find some sources from the Internet and print the copies needed.

2015年高考英语湖南卷 短文填空 原文

It uses renewable materials as sources of food.

2018年高考英语天津卷 阅读理解 阅读C 选项

Remember, however, that you should usually consult different types of sources.

2015年高考英语湖南卷 短文填空 原文

Sometimes even routine occurrences become sources of pre-anger, or anger itself.

2018年高考英语北京卷 阅读理解 七选五 原文

The emotional, physical and mental energy mothers devote to their children can be never-ending, but children are also sources of great joy and happiness.

2015年高考英语四川卷 阅读理解 阅读C 原文

At night, scan the horizon for artificial light sources, such as fires and streetlights, then walk toward the glow of light pollution.

2019年考研真题（英语一）完形填空 Section Ⅰ

Some growth stems from a commitment by governments and farsighted businesses to fund cleaner energy sources.

2018年考研真题（英语二）阅读理解 Section Ⅱ

The implication is that millennials prefer news from the White House to be filtered through other sources, not a president's social media platform.

2018年考研真题（英语一）阅读理解 Section Ⅱ

The move to renewables is picking up momentum around the world: They now account for more than half of new power sources going on line.

2018年考研真题（英语二）阅读理解 Section Ⅱ

The pace of change in energy sources appears to be speeding up – perhaps just in time to have a meaningful effect in slowing climate change.

2018年考研真题（英语二）阅读理解 Section Ⅱ

They cross-check sources and prefer news from different perspectives-especially those that are open about any bias.

2018年考研真题（英语一）阅读理解 Section Ⅱ

Today many people find it difficult to trust their own opinion and seek balance by gaining objectivity from external sources.

2015年考研真题（英语二）阅读理解 Section Ⅱ

While fossil fuels – coal, oil, gas – still generate roughly 85 percent of the world's energy supply, it's clearer than ever that the future belongs to renewable sources such as wind and solar.

2018年考研真题（英语二）阅读理解 Section Ⅱ