That lets us avoid building costly plants or buying expensive power at peak usage time.
出自-2013年6月阅读原文
They beautified it with plants.
出自-2013年6月听力原文
It captures the energy which plants produce during photosynthesis, a process of converting sunlight into energy.
2016年12月四级真题(第二套)听力
Some desalination plants exist where feasible, but they are costly to run and can need constant repairs.
2018年12月四级真题(第一套)阅读 Section C
The slugs can manufacture chlorophyll, the green pigment in plants that captures energy from sunlight, and hold these genes within their body.
2019年12月四级真题(第三套)阅读 Section C
When we think of animals and plants, we have a pretty good way of dividing them into two distinct groups: one converts sunlight into energy and the other has to eat food to make its energy.
2019年12月四级真题(第三套)阅读 Section C
In addition, at that time a greater percentage of homes and electrical plants were run on petroleum than today.
出自-2013年6月阅读原文
The plant's carbon-capture technologies would serve as a pilot project for other new coal-burning plants.
出自-2012年6月阅读原文
David Card, an economist at UC Berkeley, notes that the ones who profit most directly from immigrants' low-cost labor are businesses and employers – meatpacking plants in Nebraska, for instance, or agricultural businesses in California.
出自-2011年6月阅读原文
They found fossils of microscopic marine plants which suggest that the region was once open ocean not solid ice.
出自-2010年12月听力原文
"The yield is never going to be high," Farrant says, so these plants will be targeted not at Iowa farmers trying to squeeze more cash out of high-yield fields, but subsistence farmers who need help to survive a drought like the present one in South Africa
2018年6月六级真题(第一套)阅读 Section B
At a time when natural history was a valuable tool for discovery, Merian discovered facts about plants and Insects that were not previously known.
2018年12月六级真题(第二套)阅读 Section B
At the same time, this sea-water also kills off the greedy giant apple snail, an introduced pest that feeds on young rice plants.
2018年6月六级真题(第二套)阅读 Section C
Before writing Metamorphosis, Merian spent decades documenting European plants and insects that she published in a series of books.
2018年12月六级真题(第二套)阅读 Section B
But once these plants use up their stored reserve or tap out the underground supply, they cease growing and start to die.
2018年6月六级真题(第一套)阅读 Section B
Extreme conditions produce extremely tough plants.
2018年6月六级真题(第一套)阅读 Section B
In the seed world, that makes them rare, because most seeds from flowering plants are quite robust.
2018年6月六级真题(第一套)阅读 Section B
It's not only the study of human population, but the populations of non-human species, including viruses like influenza, the bacteria in your gut, plants that you eat, animals that you enjoy or that provide you with meat.
2017年6月六级真题(第二套)听力 Section C
Just like medical researchers use rats to test ideas for human medical treatments, botanists use plants that are relatively easy to grow in a lab or greenhouse setting to test their ideas for related species.
2018年6月六级真题(第一套)阅读 Section B
Many different kinds of plants have developed tactics to weather dry spells.
2018年6月六级真题(第一套)阅读 Section B
Many of them are the same that regulate how seeds become dryness-tolerant while still attached to their parent plants.
2018年6月六级真题(第一套)阅读 Section B
Native plants are coming back, and the fox once again bound about carefree.
2018年12月六级真题(第三套)阅读 Section A
Now they are trying to figure out what molecular signaling processes activate those seed-building genes in resurrection plants—and how to reproduce them in crops.
2018年6月六级真题(第一套)阅读 Section B
Resurrection plants, defined as those capable of recovering from holding less than 0.1 grams of water per gram of dry mass, are different.
2018年6月六级真题(第一套)阅读 Section B
She is hard at work finding a way to take traits from rare wild plants that adapt to extreme dry weather and use them in food crops.
2018年6月六级真题(第一套)阅读 Section B
She received assistance naming plants, making sketches and referencing the work of others.
2018年12月六级真题(第二套)阅读 Section B
Some plants store reserves of water to see them through a drought; others send roots deep down to subsurface water supplies.
2018年6月六级真题(第一套)阅读 Section B
The big difference between "drought-tolerant" plants and these tough plants: metabolism.
2018年6月六级真题(第一套)阅读 Section B
The Nature Conservancy has declared war on a multitude of invasive species here, from sheep to plants to the aggressive Argentine ant.
2018年12月六级真题(第三套)阅读 Section A
The Queensland rock violet is one of the best studied resurrection plants so far, with a draft genome(基因图谱) published last year by a Chinese team.
2018年6月六级真题(第一套)阅读 Section B
There are good reasons why crop plants do not use dryness defenses already.
2018年6月六级真题(第一套)阅读 Section B
They may be able to handle a drought of some length, and many people use the term "drought tolerant" to describe such plants, but they never actually stop needing to consume water, so Farrant prefers to call them drought resistant.
2018年6月六级真题(第一套)阅读 Section B
Whether it is a transition from imported to domestic oil or from coal-powered electricity production to natural-gas power plants, politicians love to talk big.
2015年12月六级真题(第一套)阅读 Section B
Yet on these and similar formations in deserts around the world, a few fierce plants have adapted to endure under ever-changing conditions.
2018年6月六级真题(第一套)阅读 Section B
Yet once they start growing, such plants seem not to retain the ability to hit the pause button on metabolism in their stems or leaves.
2018年6月六级真题(第一套)阅读 Section B
Back in 1983, two scientists, Jack Schultz and Ian Baldwin, reported that young maple trees getting bitten by insects send out a particular smell that neighboring plants can get.
2017年高考英语全国卷2 阅读理解 阅读D 原文
Big serving bowls and plants can easily makes us fat.
2015年高考英语全国卷2 阅读理解 阅读B 原文
Follow the track for the sake of plants.
2015年高考英语江苏卷 阅读理解 阅读A 选项
It ends abruptly at 3, 000 meters, giving way to lands of low growing plants.
2019年高考英语全国卷I 完形填空 原文
It gets help from other plants.
2017年高考英语全国卷2 阅读理解 阅读D 选项
Keep to the track, where one exists, so you lessen the chance of damaging fragile plants.
2015年高考英语江苏卷 阅读理解 阅读A 原文
Scientists find from their studies that plants can protect themselves against insects.
2017年高考英语全国卷2 阅读理解 阅读D 题设
Scientists have found that all kinds of plants give out vocs when being attacked.
2017年高考英语全国卷2 阅读理解 阅读D 原文
Since the plants took a while to grow, he started cutting down trees to sell the wood.
2015年高考英语广东卷 语法填空 原文
Some people may think that a garden is no more than plants, flowers, patterns and masses of color.
2016年高考英语全国卷2 阅读理解 七选五 原文
Some plants pump out smelly chemicals to keep insects away.
2017年高考英语全国卷2 阅读理解 阅读D 原文
Still others may simply enjoy being outdoors and close to plants.
2016年高考英语全国卷2 阅读理解 七选五 原文
The plants get ready to fight back.
2017年高考英语全国卷2 阅读理解 阅读D 选项
Until we don't stop climate change, many animals and plants in the world will be gone.
2018年高考英语北京卷 单项填空 原文
What the plants pump through the air is a mixture of chemicals known as volatile organic compounds, vocs for short.
2017年高考英语全国卷2 阅读理解 阅读D 原文