阅读理解 Even facts " forgotten" by people during a busy day may beretrieved if - 高中英语试题 - 超级试练试题库

阅读理解     Even facts " forgotten" by people during a busy day may beretrieved if this is followed by a good
night"s sleep. Researchers from the University of Chicago asked volunteers to remember simple words.
Many found their memories letting them down towards the end of the day, but the following morning,
those who had slept well could recall much more. Reserchers , writing in  the journal  Nature .said  the
brain  coud  " rescue"lost memories during the night.When the brain is first asked to remember something
that memory is laid  down  in  an " unstable " state, meaning that it is possible that it could be lost. At
some point, the brain consolidates those it deems important into a "stable" , more permanent state.
     However, the Chicago researchers suggested that it was possible for a " stable" memory to be made "
unstable" agan.This would  mean  that memories could be modified then filed away again in the face of
new experiences.
The 12 volunteers tested in the experiment were played words created through a speech synthesizer
which were purposely difficult to understand. Initially, the written version of the word was available,but
after wards the volunteers were asked to identify the word from the audio version only. Tests revealed
that the ability to recall the right word tended to tail off as the day ended.
     However,when the volunteers were retested after a good night"s sleep,they were able to recall some
words that they had"forgotten" the previous evening. Dr Daniel, one of the study authors, said : " Sleep
consolidates memories , protecting them against subsequent interference or decay. Sleep also appears
to "recover" or restore  memories. " He said : " If performance is reduced by decay , sleep might actively
recover what has been lost. "
     Dr Karim Nader, from the Department of Psychology in McGill University in Montreal, said: " Memory
research is undergoing a transformation-no longer is memory thought to be a hard-wiring of" the brain ,
instead it seems to be a process of storage and restorage. "
     Sleep helps some memories " mature" and also prunes out unimportant memories..1. What does the first paragraph implies?

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.

2. The words the 12 volunteers played in the experiment were not_________.A. created through a speech synthesizer
B. hard to understand
C. available at the beginning
D. designed to test people"s ability of understanding3. According to the passage , memory _________.A. is a hard-wiring of the brain
B. is not a process of storage
C. is not a process of restorage
D. will be mature with the help of sleep4. Which of the following is NOT true?A. When people first remember something, the memory is in an" unstable state " .
B. The brain will change those important unstable memories into stable.
C. Once the memory become stable, it will never become unstable again.
D. Sleep can protect memories from being harmed

1~4.CDDC

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(轻率行为)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."

题型：广东省同步题难度：| 查看答案

题型：山西省期末题难度：| 查看答案

题型：云南省模拟题难度：| 查看答案

最新试题

热门考点

超级试练试题库

( )1. A. line ( )2. A. professor ( )3. A. selfish ( )4. A. late ( )5. A. feeling ( )6. A. enjoy ( )7. A. school ( )8. A. delighted ( )9. A. better ( )10. A. expect ( )11. A. work ( )12. A. change ( )13. A. teaching ( )14. A. prepare ( )15. A. speaking	B．conversation B．student B．cheating B．early B．interest B．hate B．company B．surprised B．more B．hope B．college B．break B．politeness B．grow B．adding	C．message C．president C．rude C．noisily C．computer C．start C．society C．interested C．higher C．forbid C．learning C．set C．thinking C．develop C．warning	D. picture D. classmate D. hardworking D. quietly D. business D. avoid D. class D. encouraged D. younger D. wish D. knowledge D. reach D. progress D. improve D. wishing
阅读理解
Toucans(巨嘴鸟), 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(大摇大摆地走) 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(图腾). 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
阅读理解
Choosing the right university for you is a big decision with many factors to consider. The institution that you choose will not only be the one that ensures your academic goals, but it will also be where you will live, learn, play sports, socialize and work for several years. Therefore, before you start filling out those university application forms, take a step back and consider the many variables that affect the "fit" of a university to your unique personality and educational goals. Take a look at the following factors, and decide which ones mean the most to you. Consider your educational goals. You will discover that different schools are more recognized or progressive in your chosen field of study than others. For this reason, talk to advisors, professionals in your field, or go to clubs organized by the alumni(校友). When you check out school ranking for your major, you may find that your first choice is not really a match, while another fits perfectly. Consider costs. It will be no surprise to you at this point that not all schools cost the same. Some of the more famous schools are so because they are difficult to get into and difficult to pay for. Don"t let this necessarily stop you. Just keep this consideration in mind as you narrow your list of potential schools. Choosing a university should not be done only on reputation, but also take the academic programs and overall environment into consideration. Be aware that reputations are sometimes out of date or overstated, so first-hand experience is often beneficial. Once you"ve identified the factors that are most important to you, you"ve taken the first steps towards making a successful choice. Make sure you pick a university that will serve your needs throughout your university career. 1. The passage is written for . A. college students B. high school students C. people out of jobs D. people looking for jobs 2. In the Paragraph 4, the writer advises you not to stress on . A. overall environment B. the academic programs C. first-hand experience D. a university"s reputation 3. It"s better to choose a university which . A. costs you a little B. is well equipped C. is well known D. meets your needs 4. What does the passage mainly talk about? A. Qualities of a good university. B. Ways to achieve your goals. C. Advice on choosing a university. D. Factors influencing your choice.
阅读理解
British scientists may have discovered the reason why red wine appears to protect the heart. They say natural chemicals found in red wine appear to protect against blocked blood vessels(血管). The chemical substances are called poly-phenols(多酚). They come from the outer covering of grapes. They are not present in other alcoholic drinks. Researchers say their discovery explains why many people in southern Europe can eat fatty foods and still have a low risk of heart disease. People in France, for example, have lower rates of heart disease than Americans do. Yet the traditional French diet includes butter, cheese and other foods high in cholesterol(胆固醇). This led the British scientists to examine another important part of the French diet - red wine. Several earlier studies have suggested that people who drink proper amounts of alcohol may reduce their risk of heart disease. The British team experimented with cells from the blood vessels of cows. The scientists studied the effects of twenty-three kinds of red wine on the cow cells. They found that poly-phenols from all of the red wines stopped production of a protein called endothelin(内皮素). This protein causes blood vessels to become smaller. Scientists believe endothelin is linked to hardening of the blood vessels, which is a cause of heart disease. The scientists found that the decrease in endothelin levels was linked to the amount of poly-phenols in the wines. The British team performed similar experiments with two other kinds of wine, white and rose. These wines contain little or no poly-phenols because the grape skins are removed before the wine is made. White and rose wines had no effect on endothelin levels. The scientists also studied the effect of non-alcoholic juice made from red grapes. They found that grape juice slowed the production of endothelin, but was much less effective than the red wines. 1. So far as grapes are concerned, is more effective on reducing the risk of heart disease. A. the outer part of grapes B. the inner part of grapes C. the seeds of grapes D. the juice in grapes 2. What made the British scientists study another important part of the French diet? A. Traditional French diet. B. Lower risk of heart disease of the French. C. The reason why people drink wine. D. Poly-phenols not existing in other things. 3. From this passage, we may know people"s health is linked to . A. diet habits B. their genes C. their education D. living surroundings 4. What"s the best title for this passage? A. A Healthy Diet B. Protecting Your Heart C. Red Wine and Health D. A Study on Health
阅读理解
Camels are large animals living in dry areas. There are two species of camels: the Arabian camel with a single hump from the dry desert, and the Bactrian camel with two humps from Centraland East Asia. Camels are over 7 feet tall and weigh over 1,600 pounds. They will live up to 40 to 50 years . Most camels are domesticated(驯化)and fed by people. Camels are plant-eaters. Camels are very strong animals with wide, padded feet. They have thick leathery pads on their knees and chest. Camels have nostrils(鼻孔)that can open and close, protecting them from the desert environment. Bushy eyebrows and two rows of long eyelashes protect their eyes from sand. Their mouth is extremely tough, allowing camels to eat thorny(带刺的)desert plants. Their widened feet help them move without sinking into the sand. Their thick coats reflect sunlight, and also protect them from the intense heat from desert sand. Their long legs help by keeping them further from the hot ground. Camels can go without food and water for 3 to 4 days. They do not store water in their humps as is commonly believed. The humps are actually a container of fat. Camels are incredibly(难以置信) well-adapted to their environment. When conditions heat up, camels can increase their own body temperature, which prevents sweating and therefore water loss. They may not sweat at all during the day. Camels are sometimes called "ships of the desert" because people ride them around the hot, dry deserts of the world. However, the number of camels is becoming smaller for various reasons. 1. According to the passage, camels usually live in . A. Asia B. Africa C. America D. Australia 2. Paragraph 2 is mainly about . A. camels are useful animals B. camels are clever animals C. camels" body structure and function D. camels" characteristics and habits 3. The reason why camels lose little water in deserts is that they . A. get water from green foods B. can adjust their temperature C. store enough water in the humps D. can manage without water 4. What will the author probably talk about following the last paragraph? A. Ways to protect camels. B. Habitats of camels. C. Reasons for raising camels. D. Functions of camels.