Common indoor plants may prove to be a valuable weapon in the fight against rising levels of indoor air pollution. Those plants in your office or home are not only pretty, but NASA scientists are finding them to be surprisingly useful in absorbing possible harmful gases and cleaning the air inside modern buildings.?
NASA have announced the finds of a 2-year study that suggested the common indoor plants may provide a natural way of helping fight against “Sick Building Syndrome(综合症)”.?
Research into the use of biological processes as a means of solving environmental problems, both on Earth and in space habitats, has been carried out for many years by Dr. Bill Wloverton, a senior research scientist at NASA. ?
Based on preliminary evaluations(初步评估) of the use of common indoor plants for indoor air purification(净化),NASA funded a study using about a dozen popular varieties of attractive plants to determine their effectiveness in removing several key pollutants linked with indoor air pollution. NASA research on indoor has found that living plants are so efficient at absorbing pollutants in the air that some will be launched into space as part of the biological life support system aboard future orbiting space stations.?
While more research is needed, Wolverton says the study has shown that common indoor plants can remove certain pollutants from the indoor environment. “We feel that future results will provide an even stronger argument that common indoor plants can be a very effective part of a system used to provide pollution free homes and work places,” he concludes.?
“Combining nature with technology can increase the effectiveness of plants in removing air pollutants,” he said.
NASA research has always shown that living, green and flowering plants can remove several poisonous chemicals from the air inside buildings. You can use plant in your home or office to improve the quality of the air to make it a more pleasant place to live and work—where people feel better, perform better, and enjoy life more.
The main idea of the passage is _______.?
A. plants are very useful to human beings?
B. indoor plants can help remove indoor air pollution?
C. indoor plants should be raised in both homes and offices?
D. NASA have studied indoor plants for many years?
Why do you think NASA are very interested in indoor plants??
A. Some indoor plants would be used in space stations.?
B. They want to find a way to cure Sick Building Syndrome.?
C. They need indoor plants to carry out their experiments.?
D. Indoor plants are pretty and attractive.?
The underlined word “pollutants” refers to _______.?
A. some kinds of indoor plants B. ways to solve air pollution?
C. research on indoor plants D. poisonous chemicals in the air?
阅读快车系列答案科目：高中英语 来源： 题型：阅读理解
Plants can’t communicate by moving or making sounds, as most animals do. Instead, plants produce volatile compounds, chemicals that easily change from a liquid to a gas .A flower’s sweet smell, for example, comes from volatile compounds that the plant produces to attract insects such as bugs and bees.
Plants can also detect volatile compounds produced by other plants. A tree under attack by hungry insects, for instance, may give off volatile compounds that let other trees know about the attack, In response, the other trees may send off chemicals to keep the bugs away- or even chemicals that attract the bugs’ natural enemies.
Now scientists have created a quick way to understand what plants are saying: a chemical sensor(传感器) called an electronic nose. The “e-nose” can tell compounds that crop plants make when they’re attacked. Scientists say the e-nose could help quickly detest whether plants are being eaten by insects, But today the only way to detect such insects is to visually inspect individual plants. This is a challenging task for managers of greenhouses, enclosed gardens that can house thousands of plants.
The research team worked with an e-nose that recognizes volatile compounds. Inside the device, 13 sensors chemically react with volatile compounds. Based on these interactions, the e-nose gives off electronic signals that the scientists analyze using computer software.
To test the nose, the team presented it with healthy leaves from cucumber, pepper and tomato plants, all common greenhouse crops. Then the scientists collected samples of air around damaged leaves from each type of crop. These plants had been damaged by insects, or by scientists who made holes in the leaves with a hole punch (打孔器).
The e-nose, it turns out, could identify healthy cucumber, pepper and tomato plants based on the volatile compounds they produce. It could also identify tomato leaves that had been damaged. But even more impressive, the device could tell which type of damage by insects or with a hole punch had been done to the tomato leaves.
With some fine tuning, a device like the e-nose could one day be used in greenhouses to quickly spot harmful bugs, the researchers say. A device like this could also be used to identify fruits that are perfectly ripe and ready to pick and eat, says Natalia Dudareve, a biochemist at Purdue University in
49. We learn from the text that plants communicate with each other by______.
A. making some sounds B. waving their leaves
C. producing some chemicals D. sending out electronic signals
50. What did the scientists do to find out if the e-nose worked?
A. They presented it with all common crops..
B. They fixed 13 sensors inside the device.
C. They collected different damaged leaves.
D. They made tests on damaged and healthy leaves.
51. According to the writer, the most amazing thing about the e nose is that it can ______.
A. pick out ripe fruits
B. spot the insects quickly
C. distinguish different damages to the leaves
D. recognize unhealthy tomato leaves
52. We can infer from the last paragraph that the e-nose_____.
A. is unable to tell the smell of flowers
B. is not yet used in greenhouses
C. is designed by scientists at Purdue
D. is helpful in killing harmful insects
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科目：高中英语 来源：2011届上海市南汇中学高三上学期期中考试英语卷 题型：完型填空
What is the purpose of the World Games? What's the difference between the World Games and the Olympic Games?
_50 _the Olympic Games, the World Games have a rather _51_ history．In 1981, the first World Games were held in Santa Clara．Since then, in the year following the Olympics, some of the world's best athletes _52_ in their common search for _53_ at the world Games．
There are usually 25 to 35 _54_ at the World Games, The events at the World Games are not part of the Olympics or ones were part of the Olympic Games．Many events at the World Games _55_ as Olympic events, like weightlifting and badminton．They got their start as events at the World Games _56_ being moved into the Olympics．Just like the Olympics, the World Games also have _57_ competitions．These competitions get the sport the chance to be seen and the chance to become medal events．
The World Games are _58_ tied to the Olympic Games because the International Olympic Committee is the sponsor of the International World Games Association．The International Olympic Committee has decided that the number of Olympic participants is _59_ 10,500．The new policy means that no World Games competitions will be _60_ the Olympics any time soon．
This year, the World Games were held in Taiwan．Some events, like softball, _61_ be Olympic sports but were dropped and now are _62_ for the World Games．The World Games look like a perfect supplement and _63_ ground for future Olympic Games．So next time you get a chance to watch the World Games, you may want to pay attention as it could be the future, or maybe even _64_．
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科目：高中英语 来源：2013届四川省成都市高新区高三2月月考英语试卷（带解析） 题型：完型填空
Mr. Glen is a millionaire. Years ago, after returning from abroad to his motherland, he 1 his company. Speaking of success, Glen often tells us a story about his extra expensive “school” fee. He always 2 his success to it.
At that time, Glen, who already got a Ph.D. degree, 3 to return home, starting a company. Before leaving, he bought a Rolex watch with the 4 made through years. At the airport he had to accept the 5 customs check. The watch on his wrist was also demanded to be taken down for 6 . Glen knew that carrying such goods out had to pay the tax, and he worried about paying 7 for his watch. So while checked, he told a lie that his watch was a 8 fake（假货）. When he was 9 of his “smarts”, immediately, in the presence of Glen, the officers hit the watch, 10 cost nearly 100,000, into pieces 11 hearing Glen’s words. Glen was 12 . Before he understood why, he was taken to the office to be examined 13 . For many times of entry-exit 14 he knew that only those people in the “blacklist” would “enjoy” this special treatment. The officers looked over everything carefully, and 15 him no matter what time of entry and exit he must accept the check and if 16 reusing and carrying fake goods, he would be 17 by law! Suddenly, his face turned red, and he had nothing in mind after boarding the plane for long.
After that, he often told the story to his family and his employees. He said that this made a deep 18 on him, because the additional high “school” fee that he had ever paid made him realize the value of 19 , which he would remember as the 20 of his success forever.
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科目：高中英语 来源：2009年普通高等学校招生全国统一考试浙江卷英语试题 题型：阅读理解
Plants can’t communicate by moving or making sounds, as most animals do. Instead, plants Produce volatile compounds, chemicals that easily change from a liquid to a gas. A flower’s sweet smell, for example, comes from volatile compounds that the plant produces to attract insects such as Bugs and bees.
Plants can also detect volatile compounds produced by other plants. A tree under attack by Hungry insets, for instance, may give off volatile compounds that let other trees know about the Attack. In response, the other trees may send off chemicals to keep the bugs away ——or even Chemicals that attract the bugs’ natural enemies.
Now scientists have created a quick way to understand what plants are saying: a chemical Sensor（传感器）called an electronic nose. The “e-nose” can tell compounds that crop plants make When they’re attacked Scientists say the e-nose could help quickly detect whether plants are being Eaten by insects. But today the only way to detect such insects is to visually inspect individual Plants. This is a challenging task for managers of greenhouses, enclosed gardens than can house Thousands of plants.
The research team worked with an e-nose than recognizes volatile compounds. Inside the device, 13 sensors chemically react with volatile compounds Based on these interactions, the e-nose gives off electronic signals that the scientists analyze using computer software.
To test the nose, the team presented it with healthy leaves from cucumber, pepper and tomato plants, all common greenhouse crops. Then scientists collected samples of air around damaged leaves from each type of crop, These plants had been damaged by insects, or by scientists who made holes in the leaves with a hole punch（打孔器）. The e-nose, it turns out, could identify healthy cucumber, pepper and tomato plants based on The volatile compounds they produce, It could also identify tomato leaves that had been damaged. But even more impressive, the device could tell which type of damage ---- by insects or with a hole Punch ---- had been done to the tomato leaves.
With some fine-tuning, a device like the e-nose could one day be used in greenhouses to quickly spot harmful bugs, the researchers say. A device like this could also be used to identify fruits that are perfectly ripe and ready to pick and eat, says Natalia Dudareva, a biochemist at Purdue University in West Lafayette, Ind. who studies smells of flowers and plants. Hopefully, scientists believe, the device could bring large benefits to greenhouse managers in the near future.
1.We learn from the text that plants communicate with each other by____.
A. making some sounds B. waving their leaves
C. producing some chemicals D. sending out electronic signals
2.What did the scientists do to find out if the e-nose worked?
A. They presented it with all common crops.
B. They fixed 13 sensors inside the device.
C. They collected different damaged leaves.
D. They made tests on damaged and healthy leaves.
3.According to the writer, the most amazing thing about the e-nose is that it can___.
A. pick out ripe fruits
B. spot the insects quickly
C. distinguish different damages to the leaves
D. recognize unhealthy tomato leaves
4.We can infer from the last paragraph that the e-nose_____.
A. is unable to tell the smell of flowers
B. is not yet used in greenhouses
C. is designed by scientists at Purdue
D. is helpful in killing harmful insects
查看答案和解析>>
科目：高中英语 来源：2009年高考试题（浙江卷）解析版 题型：阅读理解
Plants can’t communicate by moving or making sounds, as most animals do. Instead, plants produce volatile compounds, chemicals that easily change from a liquid to a gas .A. flower’s sweet smell, for example, comes from volatile compounds that the plant produces to attract insects such as bugs and bees.
Plants can also detect volatile compounds produced by other plants. A. tree under attack by hungry insects, for instance, may give off volatile compounds that let other trees know about the attack, In response, the other trees may send off chemicals to keep the bugs away- or even chemicals that attract the bugs’ natural enemies.
Now scientists have created a quick way to understand what plants are saying: a chemical sensor（传感器） called an electronic nose. The “e-nose” can tell compounds that crop plants make when they’re attacked. Scientists say the e-nose could help quickly detest whether plants are being eaten by insects, But today the only way to detect such insects is to visually inspect individual plants. This is a challenging task for managers of greenhouses, enclosed gardens that can house thousands of plants.
The research team worked with an e-nose that recognizes volatile compounds. Inside the device, 13 sensors chemically react with volatile compounds. Based on these interactions, the e-nose gives off electronic signals that the scientists analyze using computer software.
To test the nose, the team presented it with healthy leaves from cucumber, pepper and tomato plants, all common greenhouse crops. Then the scientists collected samples of air around damaged leaves from each type of crop. These plants had been damaged by insects, or by scientists who made holes in the leaves with a hole punch （打孔器）.
The e-nose, it turns out, could identify healthy cucumber, pepper and tomato plants based on the volatile compounds they produce. It could also identify tomato leaves that had been damaged. But even more impressive, the device could tell which type of damage – by insects or with a hole punch – had been done to the tomato leaves.
With some fine tuning, a device like the e-nose could one day be used in greenhouses to quickly spot harmful bugs, the researchers say. A. device like this could also be used to identify fruits that are perfectly ripe and ready to pick and eat, says Natalia Dudareve, a biochemist at Purdue University in West Lafayette, Ind. who studies smells of flowers and plants. Hopefully, scientists believe, the device could bring large benefits to greenhouse managers in the near future.
1.We learn from the text that plants communicate with each other by______.
A. making some sounds B. waving their leaves
C. producing some chemicals D. sending out electronic signals
2.What did the scientists do to find out if the e-nose worked?
A. They presented it with all common crops..
B. They fixed 13 sensors inside the device.
C. They collected different damaged leaves.
D. They made tests on damaged and healthy leaves.
3.According to the writer, the most amazing thing about the e –nose is that it can ______.
A. pick out ripe fruits
B. spot the insects quickly
C. distinguish different damages to the leaves
D. recognize unhealthy tomato leaves
4.We can infer from the last paragraph that the e-nose_____.
A. is unable to tell the smell of flowers
B. is not yet used in greenhouses
C. is designed by scientists at Purdue
D. is helpful in killing harmful insects
查看答案和解析>>
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