D
Antarctica is the southernmost place on Earth, and it is larger than the United Sates and 95% of it is covered with ice. The ice is 5 kilometers thick at places and it never melts. At least that is what we thought, but let us keep it that way for now.
The ice seems to be alive as it works its way towards the seA． It forms an ice shelf over the water. The edge breaks away from the shelf and falls into the seA． From here it drifts. Now big pieces of ice become icebergs that can be 160 km long. They now drift north until they finally melt and become part of the ocean. This process is part of a bigger process which in turn forms a cooling system for Earth. This is so important that no country is allowed to control this areA． The treaty (agreement) signed by 12 countries at first and later joined by more, was to prevent any country harming the planet with irresponsible behavior.
The treaty basically states that:
Antarctica can be used for peaceful purposes only.
No country may build a military base there.
No country may do a nuclear test there.
No country may dump nuclear waste there.
Scientists working there will share their information.
Some other rules are there to protect the penguins and seals.
No dogs may run loose.
No planes may land near large groups of animals.
No guns, explosives, or tractors may be used near the animals.
Most important is that every member can inspect any of the other bases if he suspects that the treaty rules are being broken.
While the treaty is not foolproof（万无一失的）, it does play a very important part in the protection of AntarcticA． The more people realize the effects that pollution has on this continent, the bigger the pressure will be on Governments to change the way they look at pollution.
69．Why was it important to sign a treaty for Antarctica?
A．Because the ice on Antarctica will finally melt into the ocean.
B．Because Antarctica is covered with 5 kilometers thick ice.
C．Because Antarctica balances the temperature of Earth.
D．Because there are many big icebergs in AntarcticA．
70．What is the process of the movement of ice in Antarctica?
A．Ice shelf---sea water---iceberg---ice.
B．Sea water---ice---iceberg---ice shelf.
C．Iceberg---ice shelf---ice---sea water.
D．Ice---ice shelf---iceberg---sea water.
71．What is included in the Antarctica treaty?
A．There is no secret research information in AntarcticA．
B．Dogs are not allowed to be raised in AntarcticA．
C．Waste can’t be thrown away in AntarcticA．
D．People can’t bring their guns to AntarcticA．
It all began with a stop at a red light.
Kevin Salwen was driving his 14-year-old daughter, Hannah, back from a sleepover in 2006 . While waiting at a traffic light, they saw a black Mercedes Coupe on one side and a homeless man begging for food on the other.
“Dad, if that man had a less nice car, that man there could have a meal.”Hannah protested. The light changed and they drove on, but Hannah was too young to be reasonable. She pestered （纠缠）her parents about inequity, insisting that she wanted to do something.
“What do you want to do?” her mom responded. “Sell our house?”
Warning! Never suggest a grand gesture to an idealistic teenager. Hannah seized upon the idea of selling the luxurious family home and donating half the proceeds to charity, while using the other half to buy a more modest replacement home.
Eventually, that’s what the family did. The project —crazy, impetuous（鲁莽的）and utterly inspiring — is written down in detail in a book by father and daughter scheduled to be published next month: “The Power of Half.” It’s a book that, frankly, I’d be nervous about leaving around where my own teenage kids might find it. An impressionable child reads this, and the next thing you know your whole family is out on the street.
At a time of enormous needs in Haiti and elsewhere, when so many Americans are trying to help Haitians by sending everything from text messages to shoes, the Salwens offer an example of a family that came together to make a difference — for themselves as much as the people they were trying to help. In a column a week ago, it described neurological evidence from brain scans that unselfishness lights up parts of the brain normally associated with more primary satisfaction. The Salwens’ experience confirms the selfish pleasures of selflessness.
Mr. Salwen and his wife, Joan, had always assumed that their kids would be better off in a bigger house. But after they downsized, there was much less space to retreat to, so the family members spent more time around each other. A smaller house unexpectedly turned out to be a more family-friendly house.The best title for the passage should be “______”.
| A．The Less, the Better |
| B．An Expected Satisfaction |
| C．Something We Can Live Without |
| D．Somewhat Crazy but Inspiring |
What does the underlined word “inequity” most probably mean in Paragraph 3?
| A．Unfairness. | B．Satisfaction. |
| C．Personal attitude. | D．Reasonable statement. |
What does the underlined sentence “Never suggest a grand gesture to an idealistic teenager.” mean? ______
| A．Never give a quick answer to an idealistic teenager. |
| B．Unless a child is realistic, never give an answer immediately. |
| C．Give an answer if the child is reasonable. |
| D．Don’t respond to a child's demands firmly without consideration. |
What can we learn from the last paragraph?
| A．The Salwens regretted selling their house. |
| B．The relationship between the family members of the Salwens is much closer. |
| C．Small houses can bring happiness. |
| D．The Salwens intend to buy another big house. |
Which of the following statements is TRUE according to the passage?
| A．Mercedes Coupe is only an ordinary car which is quite cheap. |
| B．Unselfishness has nothing to do with people’s primary satisfaction. |
| C．Hannah asked her parents to do something charitable and they sold their house. |
| D．The writer’s children asked him to sell their house. |
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Easyuni.com is an online destination for finding your dream university or college. We help people search and compare universities, find information, and connect with the university counselors.
Choosing a University or College is Difficult and Time-Consuming!
If you are considering studying at a University or College, how do you decide which to choose? Maybe it's your brother who graduated from that University. Maybe it's your uncle. However, most likely you search online or you google, going from one University website to another, reading about the university and taking note of important stuff like application and tuition fees, entry requirements, duration of the course, etc. You attend education fairs and speak to many different university representatives. The bottom line is that it is difficult and time-consuming.
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· search for universities, colleges and courses.
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We’ll deliver the leads directly to you while it’s still warm and you’ll be given access to contact and prospect those leads for the successful into your institution. All leads comes with name, contact details, courses interested and question(s) from student.
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More effective ads performance
Our promoted Premier Listing customers generate between 10-20 times more leads compared to non-premier listing customers. EASYUNI is the correct internet marketing tool for universities and colleges.The passage shows that EASYUNI.com_______.
| A．decides which university a student should go. |
| B．offers varieties of practical information to all. |
| C．helps students find appropriate universities. |
| D．provides lectures online for students. |
In what way is EASYUNI better than other sites?
| A．It’s more effective and convenient. |
| B．It can connect with university students. |
| C．It costs less to use EASYUNI for students. |
| D．Universities can EASYUNI free of charge. |
“Leads” in the fifth paragraph are most probably______.
| A．goals of students |
| B．practical data |
| C．positions available |
| D．key universities |
The main purpose of the passage is______.
| A．to tell students how to find what they want |
| B．to recommend universities to students |
| C．to persuade universities advertise at Easyuni.com |
| D．to introduce a website to students and universities |
Drinking alcohol is a socially acceptable behavior in many parts of the world. Some medical experts say light drinking may even be good for your health, especially for the heart. But they say such health benefits should be compared to the many health risks connected with alcohol use.
Some research suggests that having one to two drinks of alcohol a day may offer some health benefits. Several large studies have shown that this type of moderate(适量的) drinking may lower the risk of heart disease and other diseases.
A study last year suggested that drinking small amounts of red wine may help lower the risk of breast cancer in women. Researchers at Medical Center in California studied 36 women. Each woman drank a glass of red or white wine every day for almost a month. Researchers collected blood samples from the women two times a month to measure their hormone(激素) levels. The next month the women who drank red wine were told to drink white wine instead. The white wine drinkers were told to drink red wine. The researchers found that the women who drank red wine had lower levels of the female hormone than the white wine drinkers. They said red grapes have chemicals that may help to lower the risk of breast cancer.
However, recent studies suggested that even small amounts of alcohol may generally increase the risk of breast cancer in women. They found that women who drink four small glasses of wine a week increase their risk of breast cancer by 15 percent.
Many studies have examined the harmful effects of alcohol use on the body. Alicia Ann Kowalchuk serves as medical director, saying “Healthy use for adults --- that's men under age 65 --- is no more than 4 drinks in a day and no more than 14 drinks in a week. And for women of all ages, it's no more than 7 drinks in a week and no more than 2 drinks in a day.” She says too much alcohol use has been linked to liver diseases, and many other cancers.How did the researchers carry out their study?
| A．By following an example. |
| B．By listing facts. |
| C．By collecting information worldwide. |
| D．By comparing tested objects. |
Which of the following is the most beneficial to women with breast cancer?
| A．A glass of white wine per day. |
| B．A glass of red wine per day. |
| C．Small amounts of alcohol per day. |
| D．Four small glasses of wine per day. |
Which of the following shows the structure of the passage?
What is the best title of this passage?
| A．Drinking alcohol is popular in many parts of the world |
| B．Alcohol drinking can be both good and bad for you |
| C．Drinking alcohol a day may give your health some benefits. |
| D．Alcohol drinking may do harm to your health |
Can people change their skin colour without suffering like pop king Michael Jackson? Perhaps yes. Scientists have found the gene that determines skin colour.
The gene comes in two versions, one of which is found in 99 per cent of Europeans. The other is found in 93 to 100 per cent of Africans, researchers at Pennsylvania State University report in the latest issue of Science.
Scientists have changed the colour of a dark-striped zebrafish to uniform gold by inserting a version of the pigment(色素) gene into a young fish. As with humans, zebrafish skin colour is determined by pigment cells, which contain melanosomes(黑色素). The number, size and darkness of melanosomes per pigment cell determines skin colour.
It appears that, like the golden zebrafish, light-skinned Europeans also have a mutation(变异) in the gene for melanosome production. This results in less pigmented skin.
However, Keith Cheng, leader of the research team, points out that the mutation is different in human and zebrafish genes.
Humans acquired dark skin in Africa about 1.5 million years ago to protect bodies from ultra-violet rays(紫外线) of the sun, which can cause skin cancer.
But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vitamin D. So the related gene changes, according to Cheng.
Asians have the same version of the gene as Africans, so they probably acquired their light skin through the action of some other gene that affects skin colour, said Cheng.
The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin colour without damaging it like chemical treatment did on Michael Jackson.What is the main idea of the passage?
| A．People can’t change their skin colour without any pain. |
| B．The new discovery helped find ways to change skin colour safely. |
| C．Pop king Michael Jackson often changed his skin colour as he liked. |
| D．Scientists have found out that people’s skin colour is determined by the gene. |
It can be inferred from the passage that ________.
| A．nowadays changing the skin colour with the chemical treatment has bad effect |
| B．Europeans and Africans have the same genes |
| C．the new discovery could help to find medical treatments for skin cancer |
| D．there are two kinds of skin genes |
Scientists have done an experiment on a dark-striped zebra fish in order to ________.
| A．find the different genes of humans |
| B．prove the humans’ skin colour is determined by the pigment gene |
| C．find out the reason why the Africans’ skin colour is dark |
| D．find out the ways of changing people’s skin colour |
Which of the following statements is TRUE?
| A．Michael Jackson died of skin damage caused by chemical treatment. |
| B．American blacks produce more vitamin D with their skin than others. |
| C．The gene determining skin colour exists widely in whites, blacks and Asians. |
| D．The melanosomes in the skin of blacks usually cause skin cancer more often. |
She may have lacked a home, but now this teen has top honors.
A 17-year-old student who spent much of high school living around homeless shelters — and sometimes sleeping in her car — today graduated and spoke on behalf of her class at Charles Drew High School in Clayton County, Ga., just outside of Atlanta.
Chelsea Fearce held a 4.466 GPA and scored 1900 on her SATs despite having to use her cellphone to study after the shelter lights were turned off at night.
“I know I have been made stronger. I was homeless. My family slept on cushions on the floor and we were lucky if we got more than one full meal a day. Getting a shower, food and clean clothes was an everyday struggle,” Fearce said in a speech she gave at her graduation ceremony. Fearce overcame her day-to-day struggles by focusing on a better day. “I just told myself to keep working, because the future will not be like this anymore,” she told WSBTV.
Fearce, one of five children, grow up in a family that sometimes had an apartment to live in, but at other times had to live in homeless shelters or even out of their car, if they had one. “You’re worried about your home life and then worried at school. Worry about being a little hungry sometimes and go hungry sometimes. You just have to deal with it. You eat what you can, when you can.”
To our surprise, Fearce overcame the difficulties and even tested high enough to be admitted into college half way through her high school career. She starts college next year at Spelman College as a junior where she is planning to study biology, pre-med (医学预科). “Don’t give up. Do what you have to do right now so that you can have the future that you want,” Fearce said.How did Fearce go on with her study without access to lights?
| A．By the car light. |
| B．By her cellphone. |
| C．By lights out of shelters. |
| D．By moonlight. |
When Fearce starts college at Spelman College, she will _____..
| A．have graduated earlier from high school than normal |
| B．be a 17-year-old student from a poor family |
| C．have a home without sleeping in her car or shelters |
| D．have raised enough money to go to college |
What lesson can we learn from Fearce’s experience?
| A．Knowledge can change your fate. |
| B．Don’t give up, and tomorrow will be better. |
| C．Whatever is worth doing is worth doing well. |
| D．He that will not work shall not eat. |
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