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Learn to cure cancer A vaccine for cance...

Learn to cure cancer

A vaccine for cancer is in the works.

Lauren Landry and Chloe Tomblin are the scientists. They look in freezers(冰柜) for bacteria to use in the research. This research has its limitations—mostly because their lab is in a high school.

But Lauren, 16, and Chloe,17 both students are Western Reserve Academy in the US, aren’t put off by the difficulties they face in their cancer immunology(免疫学) class.

“I hope we get to the point where we can get to a vaccine and write a paper,” Lauren said.

Both conduct research into how to engage the immune system in stopping cancer from forming.

Though the lab is in a high school, they don’t use textbooks. The aim is to conduct real cancer research, either by testing the effects of substances on cancer cells or developing vaccines to target the growth of those harmful cells.

The idea for the class came from Robert Aguilar, who has taught at the private school for many years. Students spend the first year learning research techniques. In the second year, students swap(调换) their blue lab coats for white ones. By this stage they are well into their research projects.

“If first-years need any help, they can feel free to ask second-year students,” Aguilar said.

Students form groups to conduct their research. One pair of students has researched the effect of capsaicin(辣椒素) on killing cancer cells. Another has tested the effect of caffeine(咖啡因) on the growth rate of breast cancer(乳腺癌) cells.

But few students get to the point in their research of experimentation with mice, Aguilar said. Lauren and Chloe hope that they can make decent progress in their work.

“We know they’re going to be used for good,” Lauren said. “If it does or doesn’t work, it still has a huge impact.”

Aguilar teaches the students that even research that doesn’t work still contributes to science in some way. He tells students that “the best part of research is failing a lot”.

1.What do Laudry and Tomblin do in their research?

A. They use capsaicin to kill harmful cancer cells.

B. They try to develop vaccines that can fight cancer cells.

C. They study the effects of caffeine on breast cancer cells.

D. They tested the effects of male mice eating cells.

2.What do we know about the cancer immunology class?

A. Only talented students can take it.

B. Students do not do their own research projects in this class.

C. It equips students with knowledge and practical research skills.

D. It asks students to start research with experiments on mice.

3.What does Aguilar mean in the last paragraph?

A. Research that doesn’t work is still useful.

B. The students’ projects will often fail.

C. Most students can’t accept failure in their research.

D. Teamwork is the key to successful projects.

 

1.B 2.C 3.A 【解析】 这是一篇说明文。讲述了16岁的劳伦和17岁的克洛伊都是美国西储学院的学生,他们在研发一种能够战胜癌症细胞的疫苗。他们在癌症免疫课上所面临的困难也并没有让他们却步。 1.细节理解题。根据第四、五段“I hope we get to the point where we can get to a vaccine and write a paper,” Lauren said. Both conduct research into how to engage the immune system in stopping cancer from forming.可知Laudry和Tomblin在研发能够战胜癌症细胞的疫苗。故选B。 2.判断推理题。第六段“Though the lab is in a high school, they don’t use textbooks. The aim is to conduct real cancer research, either by testing the effects of substances on cancer cells or developing vaccines to target the growth of those harmful cells.”可知虽然实验室在一所高中里,但他们不使用教科书。其目的是进行真正的癌症研究,要么通过测试物质对癌细胞的影响,要么开发针对这些有害细胞生长的疫苗。故可推理得知癌症免疫学课程是使学生具备知识和实践研究技能,故选C。 3.细节理解题。根据最后一段最后一句“Aguilar teaches the students that even research that doesn’t work still contributes to science in some way.”可知Aguilar教学生即使是不奏效的研究,在某种程度上仍然对科学有贡献。即不奏效的研究仍然是有用的,故选A。
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Keeping secrets is a burden

“Don’t tell anyone”. We hear these words when someone tells a secret to us. But it can be hard to keep a secret. We’re often tempted to “spill the beans(说漏嘴)”even if we regret it later.

According to Asim Shah, professor in the Menninger Department of Psychiatry and Behavioral Sciences at Baylor College of Medicine, US, keeping a secret may well “become a burden”. This is because people often have an “obsessive and anxious urge to share it with someone”.

An earlier study, led by Anita E. Kelly, a scientist at the University of Notre Dame, US, suggested that keeping a secret could cause stress. People entrusted(受委托的) with secrets can suffer from depression, anxiety, and body aches, reported the Daily Mail.

But with secrets so often getting out, why do people share them at all? Shah explained that people often feel that it will help them keep a person as a friend. Another reason people share secrets is guilt over keeping it from someone close to them. A sense of distrust can develop when people who are close do not share it with each other. “Keeping or sharing secrets often puts people in a position of either gaining or losing the trust of someone,” according to Shah.

He added that talkative people could let secrets slip out (泄露).But this doesn’t mean that it is a good idea only to share secrets with quiet people. A quiet person may be someone who keeps everything inside. To tell such a person a secret may cause them stress, and make them talk about the secret. Shah said that to judge whether to tell someone a secret.

Shah said that to judge whether to tell someone a secret, you’d better put yourself in their position. Think about how you would feel to be told that you mustn’t give the information away. Shah also recommended that if you accidentally give up someone’s secret you should come clean about it. Let the person know that their secret isn’t so secret anymore.

1.What does underlined word “obsessive” mean?

A. Unwilling.

B. Confusing.

C. Wanting to do something very much.

D. Refusing to accept facts.

2.What did researchers at the University of Notre Dame discover about secret-keeping?

A. It can result in mental and physical problems.

B. It can help promote friendships between people.

C. It can harm relationships between friends

D. It can result in a sense of distrust between friends

3.What is the main message of Paragraph 5?

A. It’s better to share your secrets with quiet people.

B. Quiet people suffer less stress from keeping secrets.

C. Talkative people are unlikely to keep secrets.

D. It’s not a good idea to share your secrets with others.

4.What does Shah suggest people do if they give away someone’s secret by accident?

A. Stay away from the person.

B. Tell the affected person what happened.

C. Exchange a new secret with the person.

D. Buy the person a gift as an apology.

 

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The Boy Made It!

One Sunday, Nicholas, a teenager, went skiing at Sugarloaf Mountain in Maine. In the early afternoon, when he was planning to go home, a fierce snowstorm swept into the area. Unable to see far, he accidentally turned off the path. Before he knew it, Nicholas was lost, all alone! He didn’t have food, water, a phone, or other supplies. He was getting colder by the minute.

Nicholas had no idea where he was. He tried not to panic. He thought about all the survival shows he had watched on TV. It was time to put the tips he had learned to use.

He decided to stop skiing. There was a better chance of someone finding him if he stayed out. The first thing he did was to find shelter from the freezing wind and snow. If he didn’t, his body temperature would get very low, which could quickly kill him.

Using his skis, Nicholas built a snow cave. He gathered a huge mass of snow and dug out a hole in the middle. Then he piled branches on top of himself, like a blanket, to stay as warm as he could. By that evening, Nicholas was really hungry. He ate snow and drank water from a nearby stream so that his body wouldn’t lose too much water. Not knowing how much longer he could last, Nicholas did the only thing he could—he huddled(蜷缩) in his cave and slept.

The next day, Nicholas went out to look for help, but he couldn’t find anyone. He followed his tracks and returned to the snow cave, because without shelter, he could die that night. On Tuesday, Nicholas went out to find help. He had walked for about a mile when a volunteer searcher found him. After two days stuck in the snow, Nicholas was saved.

Nicholas might not have survived this snowstorm had it not been for TV. He had often watched Grylls’ survival show. Man vs. Wild. That’s where he learned the tips that saved his life. In each episode(一期节目)of Man vs. Wild, Grylls is abandoned in a wild area and has to find his way out.

When Grylls heard about Nicholas’ amazing deeds, he was super impressed that Nicholas had made it since he knew better than anyone how hard Nicholas had to work to stay alive.

1.What happened to Nicholas one Sunday afternoon?

A. He got lost.

B. He broke his skis.

C. He hurt his eyes

D. He caught a cold

2.How did Nicholas keep himself warm?

A. He found a shelter.

B. He lighted some branches.

C. He kept on skiing.

D. He built a snow cave.

3.On Tuesday, Nicholas _____.

A. returned to his shelter safely

B. was saved by a searcher

C. got stuck in the snow

D. starved where he was

 

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听下面一段独白,回答以下小题。

1.When were the first amusement parks built in the U.S.?

A. In the 1700s.

B. In the 1800s.

C. In the 1900s.

2.What can we know about Coney Island?

A. It was an attraction for the rich in the early 1800s.

B. It’s no longer popular with people today.

C. It began to appeal to the working class in the 1820s.

3.What does the entrance fee cover in most U.S. theme parks?

A. Gifts and souvenirs.

B. Food and drinks.

C. Shows and rides.

4.What is the talk mainly about?

A. Amusement parks on Coney Island.

B. The facilities in U.S. amusement parks.

C. The development of U.S. amusement parks.

 

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听下面一段较长对话,回答以下小题。

1.How did the woman sleep last night?

A. She slept well.

B. She woke up once.

C. She had bad dreams.

2.What does the woman worry about this morning?

A. Her difficulty in breathing.

B. The meeting at school.

C. The rush-hour traffic.

3.What does the woman probably decide to do this weekend?

A. To work on her paper.

B. To teach a few classes.

C. To attend a writing course.

 

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听下面一段较长对话,回答以下小题。

1.What is the woman’s problem?

A. Her passport is out of date.

B. Her password is not recognized.

C. Her past work is left unfinished.

2.Where should the woman go to solve her problem?

A. The IT Center. B. Frost Hall. C. The Student Center.

3.On what day does the conversation take place?

A. Monday. B. Tuesday. C. Wednesday.

 

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