Bacteria are an annoying problem for astronauts. The microorganisms (微生物) from our bodies grow uncontrollably on surfaces of the International Space Station, so astronauts spend hours cleaning them up each week. How is NASA overcoming this very tiny big problem? It’s turning to a bunch of high school kids. But not just any kids. It is depending on NASA HUNCH high school classrooms, like the one science teachers Gene Gordon and Donna Himmelberg lead at Fairport High School in Fairport, New York.
HUNCH is designed to connect high school classrooms with NASA engineers. For the past two years, Gordon’s students have been studying ways to kill bacteria in zero gravity, and they think they’re close to a solution (解决方案). “We don’t give the students any breaks. They have to do it just like NASA engineers,” says Florence Gold, a project manager.
“There are no tests,” Gordon says. “There is no graded homework. There almost are no grades, other than ‘Are you working towards your goal?’ Basically, it’s ‘I’ve got to produce this product and then, at the end of year, present it to NASA.’ Engineers come and really do an in-person review, and...it’s not a very nice thing at times. It’s a hard business review of your product.”
Gordon says the HUNCH program has an impact (影响) on college admissions and practical life skills. “These kids are so absorbed in their studies that I just sit back. I don’t teach.” And that annoying bacteria? Gordon says his students are emailing daily with NASA engineers about the problem, readying a workable solution to test in space.
What is the best title for the text?A.NASA: The Home of Astronauts |
B.Space: The Final Homework Frontier |
C.Nature: An Outdoor Classroom |
D.HUNCH: A College Admission Reform |
Some parents will buy any high-tech toy because they think it will help their child, but researchers said puzzles help children with math-related skills.
The researchers analyzed video recordings of 53 child-parent pairs during every-day activities at home and found children who play with puzzles between 26 and 46 months of age have better spatial skills when assessed at 54 months of age.
The findings were published in the journal Developmental Science.
What is the text mainly about?
A.A mathematical method. | B.A scientific study. | C.A woman psychologist. | D.A teaching program. |
FIRST AID FOR BURNS
The skin is an essential part of your body and is its largest organ. Your skin acts as a barrier against disease, toxins, and the sun's rays. It also helps control your body temperature, prevents your body from losing too much water, warns you when things are too hot or cold, and gives you your sense of touch. As you can imagine, getting burnt can lead to very serious injuries. The first and most important step in the treatment of burns is giving first aid.
CAUSES OF BURNS
You can get burnt by a variety of things: hot liquids, steam, fire, radiation, the sun, electricity, acids, or other chemicals.
TYPES OF BURNS
Burns are divided into three types, depending on the depth of skin damage.
·Firstdegree burns These affect only the top few millimetres of the skin. These burns are not serious. Examples include mild sunburn and burns caused by other minor household incidents.
·Seconddegree burns These go below the top layer of the skin. They are serious and take a few weeks to get better. Examples include burns caused by hot liquids.
·Thirddegree burns These affect every layer of the skin, and sometimes the tissue under it. Examples include burns caused by electric shocks, burning clothes, or petrol fires. These burns cause very severe internal injuries and the victim must go to the hospital at once.
CHARACTERISTICS OF BURNS
Firstdegree burns
·dry, red, and mildly swollen
·mildly painful
·turn white when pressed
Seconddegree burns
·red and swollen; blisters; watery surface
·extremely painful
Thirddegree burns
·black and white
·swollen; the tissue underneath can often be seen
·little or no pain if nerves are damaged; may be painful around the edges of the burn
FIRSTAID TREATMENT
①Place burns under cool running water, especially within the first ten minutes. The cool water stops the burning process and reduces the pain and swelling.
②Dry the burnt area gently with a clean cloth.
③Remove any clothes using scissors if necessary, unless you see the fabric sticking to the burnt skin.
④Cover the burnt area with a loose clean cloth. Applying oil to the injured areas is a bad idea, as it will keep the heat in the wounds and may cause infection.
⑤If burns are on the face, make sure the victim can still breathe.
⑥If the victim is suffering from second or thirddegree burns, there is an urgent need to take him/her to the hospital at once.
【小题1】What's the main idea of the text?A.The burns and first aid treatment. | B.The characteristics of burns. |
C.The functions of the skin. | D.How to carry out first aid for burns. |
A.the three types of burns B.what to do if someone gets burned C.the functions of the skin D.the symptoms of burns E.how we get burns |
【小题3】What are the characteristics of first degree burns?
A.Black and white and charred. | B.Rough, red and swollen. |
C.Rough, red and dry. | D.Dry, red and mildly swollen. |
A.Steam and radiation. | B.The moon and the sun. |
C.Fire and electricity. | D.Hot liquids and chemicals. |
A.be sent to hospital at once |
B.be placed on the floor and cool the burns immediately |
C.be undressed in order to cover the burned area with a clean, dry bandage |
D.be asked not to drink any water |
A.Because the person will cry. |
B.Because rubbing may break any blisters and the wound may get infected. |
C.Because the burns are on the face. |
D.Because it will make the person feel good. |
First Aid for Burns |
Something about the |
First-aid |
(1). Applying oil to the injured areas is a bad idea, as it will keep the heat in the wounds and may cause in fection.
(2). If the victim is suffering from second or third-degree burns, there is an urgent need to take him/her to the hospital at once.
组卷网是一个信息分享及获取的平台,不能确保所有知识产权权属清晰,如您发现相关试题侵犯您的合法权益,请联系组卷网