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Expert: Science Adviser - <>3/21/2011 |
QUESTION: Dear Marie, Do you have some good suggestions of biology: plant, animal, human science experiments that would work well with teenagers? Scientific methods must go with the experiments. Thanks! < Donna ANSWER: Dear Donna, Marie is not online and I’ll help you instead of him. There are a lot of little things that can be done, but do you mean lab experiment or statistical analysis, etc.? Let us know what can be suitable for you teens, and we will do our best to send you some experiments to do. Best, Gloria |
Expert: Science Adviser - 3/23/2011 |
QUESTION: Dear Gloria, I need lab experiments. The teenage students and I will use data from these experiments to make charts, graphs, tables, etc. and to provide claims and evidence to explain more about the results. Thank you very much. Donna ANSWER: Hi there, Your best and easiest way is to do some chemistry experiments. Those are very easy and most probably you can do it in the lab and have charts, etc. for you. I do not have any particular one at the top of my head because I do cancer research and it is a bit more difficult than research for teenagers. I think you can look through these and see if you find something useful for you. http://www.siraze.net/chemistry/sezennur/experiments.htm If not, get back to me and Marie, and we’ll look more. The good thing about this site is that it has the procedures that you can follow. Good luck, Gloria |
How many Science Advisers are there working for this website?
A.Only one. | B.At least two. | C.About three. | D.Over five. |
According to Donna, she and the teenage students need ___________.
A.experiments in the lab | B.statistical analysis |
C.chemistry experiments | D.charts and evidence |
Who is this text for?
A.Teenagers. | B.Teachers. | C.Parents. | D.Experts. |
According to Gloria, Donna and the teenage students should __________.
A.turn to others for help | B.do cancer researches |
C.look through a website | D.tell who will be helped |
C
The drug store was closing for the night. Young Alfred Higgins, the shop-assistant, was ready to go home. Mr. Carr, the boss, stared at him and said “Hold on, Alfred. Maybe you'd be good enough to take the things out of your pockets and leave them here before you go.” Alfred's face got red. After a little hesitation, he took out what he had stolen. Mr. Carr said, “Maybe I should call your mother and let her know I'm going to have to put you in prison.”
Alfred thought his mother would come rushing in, eyes burning with anger. But, to his surprise, she arrived wearing a smile. “Hello, I'm Alfred's mother. Is he in trouble?” she said. Mr. Carr was surprised, too. He had expected Alfred's mother to come in nervously, shaking with fear, asking with wet eyes for a mercy for her son. But no, she was most calm, quiet and pleasant and was making Mr. Carr feel guilty…. Soon Mr. Carr was shaking his head in agreement with what she was saying. “Of course”, he said, “I don't want to be cruel. You are right. Sometimes, a little good advice is the best thing for a boy at certain times in his life and it often takes the youths long time to get sense into their heads.” And he warmly shook Mrs. Higgins's hand.
Back home, without even looking at Alfred, she said, “You are a bad luck. It is one thing after another, always has been. Why do you stand there so stupidly? Go to bed.” In his bedroom, Alfred heard his mother in the kitchen. There was no shame in him, just pride in his mother's strength. He felt he must tell her how great she was. As he got to the kitchen, he saw his mother drinking a cup of tea. He was shocked by what he saw. His mother's face was a frightened, broken one. It was not the same cool, bright face he saw earlier in the drug store. As she lifted the tea cup, her hand shook. And some of the tea splashed on the table. Her lips moved nervously. She looked very old. He watched his mother without making a sound. The picture of his mother made him want to cry. He felt his youth coming to an end. He saw all the troubles he brought his mother in her shaking hand and the deep lines of worry in her grey face. It seemed to him for the first time he had ever really seen his mother.Which of the following is probably said by Mrs. Higgins while talking to Mr. Carr?
A.“Please, for God's sake, you know, he is just a kid.” |
B.“I can't believe it! You are treating my son like that!” |
C.“You know, it takes time for a youth to truly grow up.” |
D.“Punishment makes sense because it teaches about the law.” |
What does the underlined phrase "his mother's strength"(Para. 3) refer to?
A.Mrs. Higgins's calmness and communicating skills. |
B.Mrs. Higgins's attitude towards parental sufferings. |
C.Mrs. Higgins's love and care for her son Alfred. |
D.Mrs. Higgins's greatness as a woman. |
After the incident, young Alfred would probably ________.
A.feel ashamed of her mother | B.change his attitudes towards life |
C.learn to live an independent life | D.hate Mr. Carr for hurting her mother |
BWhat you have just read is a _______.
A.note | B.report |
C.schedule | D.poster |
What is going to take place on 2 February, 2013?
A.A party for close friends to meet and have fun. |
B.A party to celebrate a traditional festival. |
C.A big event to welcome a Chinese new year. |
D.A social gathering to raise money for wildlife. |
How much do you have to pay in total if four of you go together?
A.$ 20. | B.$ 40 | C.$ 60. | D.$ 80. |
Which of the following statements is true?
A.Tickets are sold in Kwun Tong High School. |
B.It's unnecessary to take soft drinks with you. |
C.Free digital cameras are provided for everybody. |
D.Festival food will be served without extra charge. |
阅读理解
It was Thanksgiving morning. I was busy preparing the traditional Thanksgiving turkey when the doorbell rang. I opened the front door and saw two small children in rags huddling together on the top step.
“Any old papers, lady?” asked one of them.
I was busy. I wanted to say “no” until I looked down at their feet. They were wearing thin little sandals(凉鞋), wet with heavy snow.
“Come in and I'll make you a cup of hot cocoa.”
They walked over and sat down at the table. Their wet sandals left marks upon the floor. I served them cocoa and bread to fight against the cold outside. Then I went back to the kitchen and started cooking.
The silence in the front room struck me. I looked in. The girl held the empty cup in her hands, looking at it. The boy asked in a flat voice, “Lady, are you rich?”
“Am I rich? Pity, no!”
I looked at my wornout slipcovers(椅套). The girl put her cup back in its saucer(茶碟)carefully and said, “Your cups match your saucers.” They left after that, holding their papers against the wind. They had reminded me that I had so much for which to be grateful.
Plain blue china cups and saucers were only worth five pence. But they matched.
I tasted the potatoes and stirred(搅动)the meat soup. Potatoes and brown meat soup, a roof over our heads, my man with a regular job, these matched, too.
I moved the chairs back from the fire and cleaned the living room. The muddy marks of little sandals were still wet upon my floor. Let them be for a while, I thought, just in case I should begin to forget how rich I am.Which of the following would be the best title for the text?
A.Lady, are you rich? |
B.A story of Thanksgiving Day |
C.Don't forget how rich you are |
D.Does cups and saucers match well? |
Which of the following statements is NOT true according to the passage?
A.The girl thought the writer was rich just because she wanted to make the writer happy. |
B.The writer had thought she wasn't rich because her supplies were not expensive. |
C.If cups and saucers match well, they are a best pair even though cheap. |
D.After hearing what they said, the writer seemed to understand what a rich life was. |
The writer left the muddy marks of little sandals on the floor for a while to________.
A.show that she was a kindhearted lady |
B.remind her that she shouldn't forget how rich she was |
C.leave room for readers to think about what being rich is |
D.prove that she had understood what meant being rich |
It can be inferred from the text that whether you are rich depends on________.
A.how much money you have made |
B.what attitude you have had towards life |
C.the way you help others |
D.your social relationship |
D
Science can't explain the power of pets, but many studies have shown that the company of pets can help lower blood pressure (血压) and raise chances of recovering from a heart attack, reduce loneliness and spread all-round good cheer.
Any owner will tell you how much joy a pet brings. For some, an animal provides more comfort than a husband/wife. A 2002 study by Karen Allen of the State University of New York measured stress (紧张) levels and blood pressure in people - half of them pet owners –while they performed 5 minutes of mental arithmetic (算术) or held a hand in ice water. Subjects completed the tasks alone, with a husband/wife, a close friend or with a pet. People with pets did it best. Those tested with their animal friends had smaller change in blood pressure and returned most quickly to baseline heart rates. With pets in the room, people also made fewer math mistakes than when doing in front of other companions. It seems people feel more relaxed (放松)around pets, says Allen, who thinks it may be because pets don't judge.
A study reported last fall suggests that having a pet dog not only raises your spirits but may also have an effect on your eating habits. Researchers at Northwestern Memorial Hospital spent a year studying 36 fat people and their equally fat dogs on diet-and-exercise programs; a separate group of 56 people without pets were put on a diet program. On average, people lost about I1 pounds, or 5% of their body weight. Their dogs did even better, losing an average of 12 pounds, more than 15% of their body weight. Dog owners didn't lose any more weight than those without dogs but, say researchers, got more exercise overall-mostly with their dogs - and found it worth doing.What does the text mainly discuss?
A.What pets bring to their owners. |
B.How pets help people calm down. |
C.People's opinions of keeping pets. |
D.Pet's value in medical research. |
We learn from the text that a person with heart disease has a better chance of getting well if
A.he has a pet companion |
B.he has less stress of work |
C.he often does mental arithmetic |
D.he is taken care of by his family |
According to Allen, why did the people do better with pets around when facing stressful tasks?
A.They have lower blood pressure. |
B.They become more patient. |
C.They are less nervous. |
D.They are in higher spirits. |
The research mentioned in the last paragraph reports that
A.people with dogs did more exercise |
B.dogs lost the same weight as people did |
C.dogs liked exercise much more than people did |
D.people without dogs found the program unhelpful |
Malls are popular places for Americans to go. Some people spend so much time at malls that they are called mall rats. Mall rats do not leave the shop until they drop in the hundreds of stores under one roof.
People like malls for many reasons. They feel safe because malls have police stations or private security (安全) guards. Parking is usually free, and the weather inside is always fine. The newest malls have beautiful rest area with waterfalls and large green trees.
The largest mall in the United States is the Mall of America in Minnesota. It covers 4.2 million square feet. It has 350 stores, eight night clubs, and a seven-acre (公顷) park! There are parking spaces for 12,750 cars. About 750,000 people shop every week.
The first indoor mall in the United States was built in 1965 in Edina, Minnesota. People loved doing all their shopping in one place. More malls were built all over the country. Now, malls are like town centers where people come to do many things. They shop, of course. They also eat in food houses that have food from all over the world. They see movies at theatres. Some people even get their daily exercise by doing the new sport of mall walking. Others go to malls to meet friends.
In some malls, people can see a doctor or a dentist (牙医) and even attend church. In other words, people can do just about everything in malls. Now residents (居民) can actually live in their favorite shopping center.Malls are .
A.large shopping centers which also act as town centres |
B.large parks with shops |
C.the most popular places Americans go to |
D.town centers |
Why have malls become so popular?
A.Because people can do everything there |
B.Because people can do many other things besides shopping for all they need |
C.Because people feel safe in malls with police stations around |
D.Because people enjoy the fresh air and can have a good rest there |
Malls have to be large places because
A.many people drive their cars to go malls |
B.there have to be some restaurants, clinics and theatres |
C.many people hope to do sports in the malls |
D.they have to meet different needs of so many people |
Those are called mall rats.
A.who are busy stealing in the mall |
B.who have visited the biggest malls |
C.who are often found busy shopping in malls |
D.who live under the roof of the mall |