As children grow up, they become curious about different kinds of things. When t
题型：不详难度：来源：
animals, the sky. Later, they become interested in the things that people have made: wheels, bicycles, cars. And when they are adults, their curiosity continues. Sometimes this curiosity leads to a career (生涯、职业) in science.
Scientists spend their lives trying to find out about the world. Those who work with the earth sciences study the earth, the oceans, and the skies. Other scientists who study living things work with the biological sciences. A third group of scientists study the physical sciences, e. g. physics, chemistry .
These scientists have already discovered a lot about our world. For example, they tell us why your heart beats fast when you run. They say that when you are quiet, your heart normally beats sixty-five or seventy-five times a minute. Your heart is a pump (泵) that pumps blood to all parts of the body. The blood carries oxygen and nutrition. When you run, your muscles work very hard and use the nutrition that the blood carries to them. The muscles need oxygen, too . So your brain sends a signal to the heart. The signal means that the muscles need more nutrition and oxygen. Then the heart beats fast and sends blood quickly to the muscles. It may beat 90 to 140 times a minute.
Of course, scientists cannot answer all of our questions. If we ask, “Why does the ocean water taste salty?”
Scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain falls into cracks. The rain then carries the salt into the earth and into the rivers. The rivers carry the salt into the ocean. But then we ask , “What happens to the salt in the ocean? The ocean does not get saltier every year.” Scientists are not sure about the answer to this question.
We know a lot about our world, but there are still many answers that we do not have, and we are curious.
小题1:According to the passage, which of the following statements is true?
| A．People are curious in the same way. |
| B．People in different countries are interested in different things. |
| C．Men and women are curious about different things. |
| D．People of different ages are interested in different things |
| A．the earth , the oceans and the sky |
| B．man-made things |
| C．plants and animals |
| D．ocean water |
| A．more nutrition and oxygen | B．more signals | C．more salt | D．water |
答案
小题1:D
小题2:C
小题3:A
解析
试题分析：人人都有好奇心,无论是小孩还是成人,这是这篇议论文的论点。文章还通过具体事例说明了就是因为"好奇心",人类科学才得以发展。
小题1:本题为正误判断题。根据文章第二段的描述,人处于不同的年龄阶段,所好奇的对象也随之而不同,因此选D 比较恰当。
小题2:细节理解题。文章第三段第二句有如下文: "Other scientists who study living things work with the biological sciences."其中 "living things"(生物)等同于 "plants and animals",故选C。
小题3:细节题。文章第四段几处都有交待"your muscles work very hard and use the nutritionThe muscles need oxygen, too ...The signal means that the muscles need more nutrition and oxygen.",因此选A。
点评：科普类短文一直有些难度，此类阅读理解首先要能基本读懂文章，然后再根据问题，在文章中去找到相应的依据，研究相关信息句给出准确的答案。特别是对一些长句难句的理解要细致。好在三道题都是细节题，学生抓住细节就可以了。
举一反三
Ammie Reddick from East Kilbride, Lanarkshire, was only 18 months old when she had the accident that had scarred（留下创伤） her for life. The curious child reached up to grab the wire of a hot kettle in the family kitchen and poured boiling water over her tiny infant frame.
Her mother Ruby turned round and, seeing Ammie horribly burnt, called an ambulance which rushed her daughter to a nearby hospital. Twenty percent of Ammie’s body had been burned and all of her burns were third-degree. There, using tissue taken from unburned areas of Ammie’s body, doctors performed complex skin transplants to close her wounds and control her injuries, an operation that took about six hours. Over the next 16 years, Ammie underwent 12 more operations to repair her body.
When she started school at Maxwelton Primary at age 4, other pupils made cruel comments or simply wouldn’t play with her. “I was the only burned child in the street, the class and the school,” she recalled, “some children refused to become friends because of that.”
Today, aged 17, Ammie can only ever remember being a burned person with scars; pain is a permanent part of her body. She still has to have two further skin transplants. Yet she is a confident, outgoing teenager who offers inspiration and hope to other young burns victims.
She is a member of the Scottish Burned Children’s Club, a charity set up last year. This month, Ammie will be joining the younger children at the Graffham Water Center in Cambridgeshire for the charity’s first summer camp. “I’ll show them how to get rid of unkind stares from others,” she says. Ammie loves wearing fashionable sleeveless tops, and she plans to show the youngsters at the summer camp that they can too. “I do not go to great lengths to hide my burns scars,” she says, “I gave up wondering how other people would react years ago.”
小题1:How many operations has Ammie already had?
| A．Twelve | B．Thirteen | C．fourteen | D．Fifteen |
| A．They were friendly to her. | B．They showed sympathy to her. |
| C．They were afraid of her. | D．They looked down upon her. |
| A．face others’ unkindness bravely | B．hide their scars by proper dressing |
| C．live a normal life | D．recover quickly |
| A．Courageous | B．Confident | C．sensitive | D．Outgoing |
| A．A Seriously Burned Girl Survives | B．Ways to Get Rid of Unkind Stares |
| C．Permanent Scars And Pain For a Girl | D．A seriously burned angel of Hope |
Researchers are confident that technology will soon be able to track every waking moment of your life. Whatever you see and hear, all that you say and write, can be recorded, analyzed and added to your personal chronicles （履历）. By the year 2030, it may be possible to catch your nervous systems through electrical activities, which would also keep your thoughts and emotions.
Researchers at the laboratories of British Telecommunications have given the name of this idea as Soul Catcher. Small electronic equipment will make preparation for Soul Catcher. It would use a wearable supercomputer, perhaps in a wristwatch, with wireless links to micro sensors under your scalp（头皮） and in the nerves that carry all five sensory signals. So wearing a video camera would no longer be required.
At first, the Soul Catcher"s companion system — the Soul Reader — might have trouble copying your thoughts in complete details. Even in 2030, we may still be struggling to understand how the brain is working inside, so reading your thoughts and understanding your emotions might not be possible. But these signals could be kept for the day when they can be transferred to silicon circuits to revitalize minds everlasting entities （永生实体）. Researchers can only wonder what it will be like to wake up one day and find yourself alive inside a machine．
For people who choose not to live in silicon, semblance of immortality would not be as useless as they thought. People would know their lives would not be forgotten, but would be kept a record of the human race forever. And future generations would have a much fuller understanding of the past. History would not be controlled by just the rich and powerful, Hollywood stars, and a few thinkers in the upper society.
小题1:The main idea of this passage is that _______．
| A．human beings long for living forever |
| B．there are many difficulties in making the Soul Catcher |
| C．people might live forever as technology develops |
| D．the invention of Soul Catcher has great importance |
| A．a new machine on which research measures have already been made |
| B．a new invention in order to catch and keep human"s thoughts and emotions |
| C．made by British scientists to offer something that looks like living forever |
| D．made of silicon circuits which can catch people"s nervous activity |
| A．to be a reality sooner or later | B．far from certain |
| C．just an idea that couldn"t t be realized at all | D．a fading hope |
| A．make dead | B．make famous | C．make known | D．make active |
So who can really benefit from an online program? Well, anybody, and everybody! Online programs can turn out to be a pocket-friendly choice to a traditional college for many people. Here’s a list of people who usually consider joining in an online degree program;
l Stay-at-home parents. Online education is perfect choice for stay-at-home parents and those who have very young kids. Online classes give them the flexibility to complete or further their education while looking after home and family and without worrying about childcare.
l Working professionals who want to further their education but travel a lot or have extremely busy schedules, as well as those who want to make a career change but do not have the time to enroll in a full-time degree program.
l People who cannot commute(乘车上下班)to a college campus.
l Shy students who might feel embarrassed among a group of people and prefer to study by themselves and at their own pace.
l People who want to save money. Online programs can turn out to be more cost-effective than attending a physical classroom.
l People who do not get distracted (分心的)easily — something many people overlook when considering online education. If you are someone who can easily ignore the ringing of a phone, stay away from TV, and resist all other things that may draw your attention, online programs are for you.
So do you think online education is for you? If you feel you belong to any of the above listed categories, then online education could work out very well for you.
小题1:What should students consider when they apply to an online program?
| A．They are interested in its course. |
| B．The college should be approved by authority. |
| C．Their homes are not far from the college. |
| D．Teachers in the college must be top-ranking. |
| A．She can learn while taking care of her family. |
| B．She should learn more to teach her baby. |
| C．There is no such school for both mothers and babies. |
| D．She will feel less embarrassed by learning online. |
| A．Emily, an easy-going girl who dislikes doing things on her own. |
| B．Mrs. Clark, far from campus, who is hoping to learn at any price. |
| C．Jack, a busy engineer who wants to further education. |
| D．George, a single father who has difficulty in concentration. |
| A．Less Money, More Resources |
| B．Try to Be Attentive Students |
| C．Online Educaiton— Everyone’s Perfect Choice |
| D．Who Can Benefit from an Online Program |
A microscope is a useful instrument for observing small objects. By producing a bigger image, the microscope reveals details that are undetectable to the naked eye(裸眼).
Before using the microscope, please read the instructions below.
CAUTION: Microscopes are both delicate and expensive and must be handled with care.
1. Always carry the microscope with two hands — one supporting the base and the other on the arm.
2. Avoid stretching the wire of the lamp across a walkway.
3. Keep the stage clean and always use a glass slide for specimens(样本).
4. To avoid crushing the glass slide when focusing, begin with the lens close to the specimen and gradually back off to focus.
5. Keep the microscope covered to prevent the dust while it is being stored.
HOW TO USE THE MICROSCOPE:
1. Plug(接通电源) in the lamp.
2. Place a sample of what you wish to observe on a slide.
3. Adjust the mirror so it reflects light from the room up into the objective lens. When the mirror is correctly adjusted, a complete circle of light iwll appear when you look through the eyepiece.
4. Place your slide with the specimen directly over the center of the glass circle on teh stage. If it is a wet slide, be sure the bottom of the slide is dry.
5. With the LOW POWER objective leans placed over the slide, use the coarse focus knob to lower the lens to the lowest point.
6. Look through the eyepiece with one eye while closing the other eye. Slowly raise the lens until teh focus is relatively clear.
7. Use the fine focus knob to fine -tune(微调)the focus.
8. Without changing the focus knobs, switch to the HIGH POWER objective lens. Once you have switched to HIGH POWER, use only the fine focus knob to make the image sharper.
小题1:Which of the following is the correct way to use a microscope according to the text?
| A．Use one hand to carry the microscope |
| B．Place a sample directly on the clean stage |
| C．When stored, the microscope should be adjusted. |
| D．Look through the eyepiece with one eye. |
| A．Switch to objective lens. | B．Adjust the mirror. |
| C．Look through the eyepiece. | D．Place the hair on a glass slide. |
| A．after correctly adjusting the mirror |
| B．while looking at the specimen on a glass slide |
| C．after slowly raising the objective lens |
| D．before positioning the mirror correctly |
Using a tiny microchip which is implanted into the arm, they have come up with a replacement for cash or credit cards that cannot be left at home or dropped on the bus.
The Verichip is about the size of a grain of rice and works using radio frequency identification technology. At a shop, a radio frequency “reader” would send a signal and the chip in your arm would respond with your unique identity number. That would give the “reader” your financial information, and money could be taken directly from your accounts and you wouldn"t even have to reach for your wallet.
The company also hopes to include other information on the chip, such as medical records, building security codes(密码) and passwords, making life even easier.
But not everyone is happy with the developments. Critics say that a lot can go wrong with the chip. A clever thief could build a fake(假的) reader that would steal your information without you knowing. So your money could still be stolen. Privacy is a big issue too. Stores, or even the government, only need to track the chip to find out what you buy, how much you spend and where you go.
And if you wanted to get rid of your chip,you would need an operation to remove it.
小题1:The Verichip is .
| A．the identity number | B．the security code |
| C．a tiny microchip | D．a radio reader |
| A．how the Verichip works |
| B．the importance of the Verichip |
| C．the development of the Verichip |
| D．how money is taken from your accounts |
| A．Your information on it will always be safe. |
| B．Medical records have already been included. |
| C．You can easily reach for your wallet using it. |
| D．An operation has to be performed to remove it. |
| A．All people are satisfied with the chip. |
| B．The Verichip company has financial problems. |
| C．The chip needs improving to be widely accepted. |
| D．Many people have the experience of losing keys or money. |
| A．warn | B．advertise | C．compare | D．introduce |
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