科目: 來源:高考真題 題型:閱讀理解
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科目: 來源:山東省模擬題 題型:閱讀理解
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科目: 來源:0111 月考題 題型:閱讀理解
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科目: 來源:0109 期中題 題型:閱讀理解
閱讀理解。 | |
certain methods and procedures to obtain new knowledge and greater understanding. Although the methods are not always the same, there are usually certain elements in the procedures that are similar. 1. ( ) Problems must first of all be recognized. The right answers can be obtained only if the right questions are asked. A thoroughly understood problem is well started toward solution. Problems arise in a variety of ways. Sometimes they grow out of a chance observation. They may result from reading, from laboratory experiments, or simply from thinking. They also may result from new developments or from new or different human needs. Today, for example, problems are arising from new discoveries in the fields of nuclear physics, biological engineering and microelectronics. The development of industry has also brought about large numbers of problems which have to be solved. 2. ( ) Next, the scientist tries to learn as much as possible about it. Often this means going to the library and studying books which contain accounts of man's experience and knowledge of the problem. This is called searching the literature. The scientist may find that others have already solved all or a part of the problem. Occasionally he finds answers to closely related questions, which give clues for solving the new one. In his search the scientist accumulates much background information. With these new ideas and facts he builds a firm foundation for solving the problem. 3. ( ) After the scientist has finished this part of his work he will probably take the many facts which he has collected and organize them into some kind of system. This may be a logical classification or it may be a mathematical analysis. Usually the analysis will show unanswered questions. Sometimes it will suggest areas that are in need of further study. Perhaps one of the most important results of such an analysis is that it indicates certain truths, which generally are called inferences. 4. ( ) In making an inference the scientist has built up a hypothesis. A hypothesis is only a"best" guess. It must next be tested. If it is correct, the certain things should follow. This means if a particular experiment is carried out, certain observation ought to be possible or it should be possible to make certain predictions. Should the observations or predictions turn out to be as expected, the scientist has added confidence in the probable truth of his hypothesis. If, however, observations cannot be made or the predications are unreliable, then the hypothesis will probably be given up or at least modified. 5. ( ) The hypothesis must check with the facts. Scientific facts are usually established by work in the laboratory. Experiments have to be made under carefully controlled conditions. Thorough and accurate records must be kept. In making certain kinds of experiments in science variables are used. A variable is something which has different values under different conditions. In one type of laboratory test all the variables but one are controlled. This method of testing is called controlled experimentation. |
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科目: 來源:浙江省模擬題 題型:閱讀理解
Gadgets (小裝置) can be wildly expensive and quickly out-of-date, but Steven Poole is still the
first to buy them. Technological innovations (創(chuàng)新) are often quite stupid. The idea that you might
want to walk down the street holding a mobile phone in front of your face, just to experience the
wonders of video calling, is clearly ridiculous. Luckily for the tech companies, however, there are
some people who jump at the chance to buy into new gadgets before they are fully ready and cheap
enough for the mass-market. They are called early adopters, and their fate is a terrible one. I should
know, since I am one myself.
Early adopters have a Mecca: it’s Tokyo’s Akihabara district, also known as “Electric City”.
There, in 1999, I bought a digital camera, a gizmo that few people in Britain had heard of. Over the
next few years I watched in great sadness as digital cameras became more popular, cheaper and more
powerful, until better models could be had for a quarter of the price I had paid. Did I feel stupid? What
I actually did was this: I splashed out more money last year for a new one, one that let me feel pleasantly
ahead of the curve once again. But I know that cannot last, and I’ll probably have to buy another in a
few years.
Thus early adopters are betting on other people eventually feeling the same desires. And it’s worse
if that future never arrives. Early adopters of the Betamax home-video format in the 1970s could only
look on in sadness when their investment was nullified(使無效)by the success of VHS. All sorts of
apparently splendid inventions, such as videogame consoles like the Atari Jaguar have been abandoned
to the dustbin of history right after a few early adopters bought in. Those who invested thousands in a
Segway motorized scooter on the wave of ridiculous advertising campaigns that accompanied its launch
a couple of years ago can join the club.
You might think we should just stop being so silly, save our money, and wait to see what really
catches on. But the logic of the industry is such that, if everyone did that, no innovation would become
popular. Imagine the third person to buy an ordinary telephone soon after Alexander Graham Bell had
invented it. Who was he going to call? Maybe he simply bought two phones, one for a special friend.
But still, the usefulness and eventual popularity of the device wasn’t clear at the time. Nobody dreamed
of the possibility of being able to speak to any one of millions of people. And yet if he, and the hundreds
and thousands of early adopters after him, had not bought into the idea, the vast communication networks
that we all take for granted today would never have been built.
The same goes, indeed, for all new technologies. Those guys holding bricks to their ears that we
laughed at in the 1980s made the current mobile phone possible. People who bought DVD players
when they still cost a fortune, instead of today’s cheap one at the local supermarket, made sure that
the new format succeeded. Early adopters’ desire for desires supported the future financially. And
what did they get for their pains? They got a hole in their bank accounts and inferior, unperfected
technology. But still, they got it first. And today they are still at work, buying overpriced digital radios,
DVD recorders and LCD televisions, and even 3G phones, so that you will be eventually be able to
buy better and less expensive ones.
So next time you see a gadget-festooned geek (滿身新潮玩意的土包子) and feel tempted to
sneer (譏笑), think for a minute. Without early adopters, there would be no cheap mobile phones or
DVD players; there would be no telephone or television either. We are the tragic, unsung foot soldiers
of the technology revolution. We’re the desire-addicted pioneers, pure in heart, dreaming of a better
future. We make expensive mistakes so you don’t have to. Really, we are heroes.
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科目: 來源:同步題 題型:閱讀理解
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科目: 來源:同步題 題型:閱讀理解
A. A busy day makes people forget things easily.
B. People need a good night's sleep after a busy day.
C. A good night's sleep helps memories.
D. A good night's sleep helps people forget a busy day.
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科目: 來源:廣東省同步題 題型:完形填空
完形填空 | ||||
One student took a box of chicken to class.Another carried on a cellphone __1__ and still another whistled loudly every time the __2__ turned his back.Reform school?No. College. More and more, professors say, they are coming across __3__ students in their classrooms.Many of today's young scholars arrive late, leave __4__, talk loud or take care of personal __5__ such as paying bills during class.Why are the students behaving badly?"Because they can, , " said a student of University of North Texas."A lot of the time, , the professors let them get away with it." Some educators say it is time to bring politeness back to their classrooms and even __6__ taking some of the blame for bad behavior.They say that rude students are by no means the majority but that one of them can ruin an entire __7__. People are __8__ when they learn that impolite behavior is becoming more and more common in __9__ education, , says Dr. Gerald Amanda, , a counselor at City College of San Francisco.They __10__ some high school students to misbehave but think those who get to __11__ will behave more politely. Dr. Amanda believes that society in general has become more tolerant of rude behavior and that people in power, , including professors, , no longer __12__ standards for __13__.That leads to a growing imprudence(輕率行為)among some college students."There's a great deal of bad behavior in the world around them, , and young people see it and __14__ disrespect, , "said Dr. Amanda, , __15__ that sometimes students "have no idea that they are being rude." | ||||
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科目: 來源:山西省期末題 題型:閱讀理解
Toucans(巨嘴鳥), a kind of tropical birds known for its colorful beak, are very smart. In Mexico, my
dad became friends with a toucan that was in a "walk in and see the birds" cage. The toucan was so smart that it knew how to get out. It just needed some human to help it. It almost flew out while we were leaving!
I also noticed that all toucans have different beaks! They also have very long unique beaks with an extremely long tongue. It struts(大搖大擺地走) around with its chest sticking out and beak pointed forward. The
toucan is a beautiful bird! The beak has a red tip (different shades on every one), but sometimes there is a
little turquoise on the bottom half. Then, right where the beak separates there is a splotch of yellow. And
the rest of the beak is green. The toucan takes very much pride of itself.
The toucan eats fruit and seeds. The ramphastidae(the toucan family) is known for its long beak, and
37 species. Toucans also feed on insects, small lizards, bird nestlings and eggs. They nest in hollow trees
where they incubate and care for their young.They are found in the woody areas.
Of the various toucan facts, here is an odd one. Citizens of Central and South America associate the
toucans with evil spirits. They think the birds can be the personification of evils. Where couvades(父代母育) is practiced, the father of a new child must not eat toucan flesh as it is believed to bewitch the
new-born child. Yet the toucan can also be a tribal totem(圖騰). So the medicine men use it as a symbol
to fly to the spirit world.
1.Which of the following words is NOT suitable to describe toucans?
A. Intelligent
B. Confident
C. Dangerous
D. Colorful
2.The second paragraph mainly talks about _______.
A. where toucans strut around
B. how toucans get food
C. what toucans look like
D. when toucans lay eggs
3.What does the underlined word"incubate"probably mean in paragraph 3?
A. Hatch eggs
B. Take cover
C .Gather strength
D. Keep warm
4. We can learn from the last paragraph that _______.
A. all citizens of Central and South America are afraid of toucans
B. the toucans can also be used as medicine to cure diseases
C. a new child must not eat toucan flesh because it is poisonous
D. some people believe toucans can bring them misfortune
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科目: 來源:云南省模擬題 題型:閱讀理解
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