Chemical Safety
Procedures for handling chemical spills(泄露) and leaks.
Chemical spills and leaks can be broken down into two basic types: simple spills, which you can clean up yourself and complicated spills, which require outside assistance.
If your spill meets any of the following conditions, it is a complicated spill.
★A person is injured; or
★The identity of the chemical is unknown; or
★Multiple chemicals are involved; or
★The chemical is highly poisonous, flammable (可燃的) or reactive ; or
★The spill/leak occurs in a “public space” such as a corridor; or
★The spill/leak has the potential to spread to other parts of the building such as through the ventilation (通风) system; or
★The clean up procedures are not known or appropriate materials are not readily available; or
★The clean up requires a respirator (呼吸器) (including cartridge respirators) to be worn and no personnel have been trained and fit-tested in accordance(一致) with the campus Respiratory Protection Program; or
★The spill/leak may endanger the environment by reaching waterways or outside ground, or by going down a drain
If none of the above conditions are met, the spill is defined as a simple spill. You may clean up simple spills in accordance with Chapter 6 of the Chemical Safety Guide. For consultative assistance, call Division of Research Safety (DSR) at 333-2755.
How to report a complicated spill Evacuate(撤退) to a safe location, and alert others to evacuate. Dial 9-911 from a campus phone. Tell the operator you are calling to report a chemical spill at the University of Illinois. Have the following information ready. Name of chemical Quantity spilled Location of spill (Full building name and room number) Number of people injured or slashed If applicable, the occurrence of a fire or explosion Your name and phone number 5. Have someone knowledgeable about the chemical spilled meet the fire department at the main entrance to your building. Take a Material Safety Data Sheet (MSDS) of the chemical, if it is readily available. |
Which of the following situation can be classified as a simple spill?
A.Some spilled liquid causes a fire in the building. |
B.Yellow and green gases are leaking from the storage room. |
C.An unknown red chemical is found on the corridor floor. |
D.A researcher spills his milk all over the lab floor. |
According to the safety instructions, upon discovering a complicated spill on campus, people should _________.
A.put on a respirator as soon as possible |
B.refer to Chapter 6 of the Chemical Safety Guide |
C.get away from the spill and report it to authorities |
D.call Division of the Research Safety at 333-2755 |
“MSDS” in the passage possibly refers to _____.
A.a mask | B.an explanation about the chemical |
C.a device | D.another kind of chemical |
Who are most possibly the targeted audiences of this article?
A.Students in the Chemistry Department of a university. |
B.Researchers working at Chemical Institution of Illinois. |
C.Members of Division of Research Safety. |
D.Staff members at a chemical manufacturing company. |
The purpose of the material above is to ____________ .
A.inform people of the dangers of various chemical spills |
B.introduce complicated spills and necessary measures in response to them |
C.encourage students to join the campus Respiratory Protection Program |
D.compare simple spills and complicated spills |
Around the world, honeybee groups are dying in huge numbers: About one-third of nests collapse each year. For bees and the plants they pollinate (授粉) — as well as for beekeepers, farmers, honey lovers and everyone else who appreciates this marvelous social insect — this is a catastrophe.
Honeybee collapse has been particularly worrying because there is no one cause, but rather a thousand little cuts. The main elements include the mixed impact of pesticides (杀虫剂) applied to fields, as well as pesticides applied directly into nets to control bugs, pests and diseases; nutritional shortages caused by vast acreages of single-crop fields that lack diverse flowering plants; and commercial beekeeping itself, which destroys groups by moving most bees around the country multiple times each year to pollinate crops.
The real issue, though, is not the volume of problems, but the interactions among them. Here we find a major lesson from the bees that we ignore at our risk: the concept of synergy (协同作用), where one plus one equals three, or four, or more. A typical honeybee colony contains remains from more than 120 pesticides. Alone, each represents a benign dose (良性剂量). But together they form a poisonous soup of chemicals whose interplay (相互作用) can greatly reduce the effectiveness of bees’ immune systems, making them easier to suffer from diseases.
Observing the death of honeybees should warn us that our own well-being might be similarly threatened, and the widespread collapse of so many groups presents a clear message: We must demand that our regulatory authorities require studies on how exposure to low dosages of combined chemicals may affect human health before approving compounds.
Bees also provide some clues to how we may build a more collaborative relationship with the services that ecosystems can provide. Bees could offer some of the pollination service needed for agriculture. People discovered that crop harvests, and thus profits, are maximized if some cropland are left uncultivated for bees. Meanwhile a variety of wild plants means a healthier, more diverse bee population, which will then move to the planted fields next door in larger and more active numbers.Which of the following is NOT the cause that leads to bees dying?
A.Lack of nutrition from enough diverse flowering plants. |
B.The pests and diseases of the bees. |
C.The beekeepers’ destroying without intention |
D.The pesticides applied to crops. |
By saying “one plus one equals three, or four, or more” in Paragraph 3, the author means that ____.
A.bees united mean they are much more powerful |
B.bees united mean they are much more poisonous |
C.pesticides mixed mean they are much more poisonous. |
D.pesticides mixed mean they are much more effective. |
The lesson people can learn from bees dying is that ____________.
A.medicine is as powerful as pesticide |
B.our health might be threatened by pesticides |
C.we should protect bees by reducing the usage of pesticides |
D.medicine may be harmful to us when used together |
What is the last paragraph mainly about?
A.Keeping a balance with nature is important |
B.More plants mean more and healthier bees. |
C.Bees are very important to agriculture. |
D.Bees can bring in good higher profits to farmers |
There is a very instructive incident involving the life of Alexander, the great Greek king. Alexander, after conquering many kingdoms, was returning home. On the way, he fell ill and it took him to his death bed. With death staring him in his face, Alexander realized how his conquests, his great army, his sharp sword and all his wealth were of no consequence. So, he lay helplessly waiting to breathe his last. He called his generals and said, "I will depart from this world soon, I have three wishes, please carry them out without fail."
"My first desire is that," said Alexander, "My physicians alone must carry my coffin." After a pause, he continued, "Secondly, I desire that when my coffin is being carried to the grave, the path leading to the graveyard be strewn(撒满) with gold, silver and precious stones which I have collected." The king continued, "My third and last wish is that both my hands be kept hanging out of my coffin.” Alexander's favorite general kissed his hand and pressed them to his heart. "Oh King, we assure you that your wishes will all be fulfilled. But tell us why do you make such strange wishes?"
At this Alexander took a deep breath and said, “I would like the world to know of the three lessons I have just learnt. I want my physicians to carry my coffin because people should realize that no doctor can really cure any body. They are powerless and cannot save a person from the clutches of death. So let people not take life for granted.
The second wish of strewing gold, silver and other riches on the way to the graveyard is to tell people that not even a bit of gold will come with me. I spent all my life earning riches but cannot take anything with me. Let people realize that it is just a waste of time to chase wealth.
And about my third wish of having my hands hanging out of the coffin, I wish people to know that I came empty-handed into this world and empty-handed I go out of this world.” With these words, the king closed his eyes. Soon he let death conquer him and breathed his last.The first paragraph suggests that Alexander _________.
A.was conquering many kingdoms. |
B.realized that what he got in his life was nothing to him at all. |
C.wanted to leave as he came empty-handed. |
D.regarded his conquests, his great army, his sharp sword and all his wealth as the most important things. |
The underlined word “clutches” in paragraph 3 means “_______”.
A.sentence | B.attention |
C.control | D.shadow |
The author intends to ________.
A.tell us the story of Alexander |
B.introduce readers to the instructive lessons of Alexander |
C.stress the powers of Alexander the Great |
D.persuade people to realize what Alexander said |
What would be the best title for the passage?
A.The Death of Alexander. |
B.The Greed of Alexander |
C.Three Wishes of Alexander |
D.The Life of Alexander |
There are some strange driving laws in different countries.
Countries |
Laws |
Vietnam |
If you’re in Vietnam without a Vietnamese driver’s license, you risk a prison sentence of up to three years. |
Russia |
In Moscow, if your car is dirty enough to draw dust art, you will be fined about 2,000 rubles (about US $55). Worse yet, it’s illegal to wash your car by hand in public places — forcing you to take it to one of the few car wash facilities. |
Thailand |
Drivers —male or female — can’t drive shirtless, whether it’s a car, a bus, or a tuk-tuk cab. |
France |
France requires its drivers to carry a portable breathalyzer(酒精测量仪) at all times when driving a car. The one-time breathalyzer cost around US$5, and if you don’t have one, you will be fined US$15. |
Cyprus |
Raising your hands in the car can get you fined of US$35. The law states a driver can be fined if the person “is in an irregular position inside the car or raises his hand from the steering wheel unnecessarily. |
Japan |
Politeness isn’t just the culture in Japan; it’s part of driving laws. Splashing a person by driving through a puddle(水坑) with your car will cost you over US$60. The country is also strict with its DUI(酒驾) laws — riding with or lending your car to a driver who gets caught drinking and driving can lead to a fine costing thousands of dollars. |
Where should you go to wash your car when you are in Moscow?
A.The car wash facilities. |
B.Any public place |
C.Your home |
D.The forest |
What can get you fined for in Cyprus?
A.Forgetting to carry a portable breathalyzer. |
B.Not having a Cyprus driver’s license. |
C.Putting your hands above your head when you are driving. |
D.Driving without a shirt. |
If you are fined thousands of dollars in Japan, you may have been ____.
A.in an irregular position in your car |
B.sitting in a car with a drunk driver |
C.splashing a person with mud |
D.impolite to other drivers |
This text can most likely be found in _______.
A.a law document |
B.a fashion magazine |
C.an international newspaper |
D.a column on interesting cultures |
Bobbi Kristina Brown's family has been gathered around her since she was hospitalized on Saturday after being found unconscious in the bathtub of her suburban Atlanta townhome.
Whitney Houston's only child is now at Emory University Hospital and is still fighting for her life, as a family statement said on Monday.
Nothing has changed, despite reports that are popping up and painting a more serious picture.
Fox News reported Wednesday that the situation is horrific. "It's now a matter of when the family wants to let go and accept that she's pretty much not going to make it," a source told FOX411. "They've left it up to the family as to how long they want to keep her alive."
People Magazine is also reporting that a doctor told Brown's family on Wednesday that nothing more could be done. "Everyone is coming to the hospital to say goodbye," said a family member.
And the Daily Mail says Brown has been taken off life support.
But Bobby Brown issued a statement late Thursday denying these reports.
"If we issued a statement every time the media published a false report regarding this matter, that's all we would be doing 24 hours a day. This is false, just as is the vast majority of the other reporting that is currently taking place," he said, according to the Atlanta Journal Constitution.
A source close to the family tells USA TODAY that it's wrong to say the family is gathering to say goodbye, because the family has been there since the beginning, so nothing is any different today for them.
Also, Brown is "not brain dead," as has been reported.
And, as for other stories saying that the Houston family is feuding with Bobbi Kristina's dad, Bobby Brown? Those aren't true either. They "are NOT fighting," says our source.According to Fox News, Bobbi Kristina is _________.
A.within an inch of life |
B.on the way to success |
C.left aside by her family |
D.in a good state |
Bobby Brown holds the opinion that _________.
A.they are busy issuing statements all day |
B.the family is saying goodbye to Kristina |
C.he is getting along well with the Houston family |
D.most journalists are getting the wrong end of the stick. |
Which can be the best title of the passage?
A.An Accident In The Bathtub |
B.Kristina, We’re Still Praying And Waiting On A Miracle |
C.False Reports From Different News Media |
D.Bobbi Kristina’s Final Days |
Picking a university is a tense period of asking yourself which institution is most relevant. That's why university rankings play such a vital role in students searching for their next academic direction. Rankings are also an inescapable part of the reputation and brand image of universities. "No university website is complete without the claim to be in the top 100 for something or other," reported the BBC. The reason is simple: Rankings help them to attract students, staff and research investment.
Currently there are numbers of university rankings, and each has its own list of criteria. But the main categories are the same: academic reputation, graduates' performance and faculty resources.
However, experts point out the ranking process isn't entirely reliable. Mark Kantrowitz, a US financial aid researcher, said university rankings were mostly just for show. He wrote in The New York Times. "It may give your parents better bragging rights, but that's about it."
Moreover, it's not difficult to see the limitations of university rankings. Many rankings focus on the number of times research work is cited (引用) by other researchers. It helps British and US universities to dominate global rankings because English is the favored language of academia, John O'Leary, a member of the QS academic advisory board, told The Gunrdian,. Also, rankings such as QS mainly focus on the qualities of the university rather than its students. "Any university ranking is likely to help students make better decisions about where to study, but the need to balance them with other more human factors is also important," said Phil Moss, an education and admissions consultant. "Advice from graduates or current students can be as valuable in providing a genuine insight into the experience or quality of a particular degree program. It can also add an element that rankings can never convey-the actual emotion of a university experience."Why do universities consider rankings important?
A.Rankings make them more appealing. |
B.Rankings are students' only reference. |
C.Rankings can increase their academic level. |
D.Rankings help them complete their websites. |
What does the underlined "It" in paragraph 4 refer to?
A.Acadenuc research work. |
B.The number of researches. |
C.The way of ranking universities. |
D.The limitation of university ranking. |
According to John O'Leary, what helps British and US universities rank well?
A.The wide use of English in academia. |
B.Their outstanding qualities. |
C.Their graduates' excellent performance. |
D.The academia's favor to them. |
Besides ranking, what does Phil Moss suggest you should refer to if you're picking a university?
A.Investment in education. |
B.Guidance from professors. |
C.Information on websites. |
D.Suggestions from students. |