在线成人动漫,亚洲中文字幕一区二区,heyzo高清在线

精英家教網 > 高中英語 > 題目詳情

Back in old times, people had little knowledge about the universe and nature. Things we now consider to be common sense were mysteries to our ancestors.
Over the years, major breakthroughs have been made in science and many phenomena have been explained. But still, there are always questions we can't yet answer, and The Guardian has listed some of them.
1. What makes us human?
Just looking at your DNA won't tell you - human DNA is 99 percent identical to that of the chimpanzee and, believe it or not, 50 percent identical to a banana's! A lot of the things we once thought were unique about us - language and tool use, recognizing ourselves in the mirror and so on – have since been seen in other animals. Perhaps it's our culture that makes the difference or maybe our ability to use fire. It's also possible that our capacity (能力) for co-operation and our trading skills are what make us unique.
2. Why do we dream?
Given the fact that we spend around a third of our lives sleeping, shouldn't we know everything about it? Unfortunately, scientists are still searching for a complete explanation of what happens when we sleep and why we dream.
Austrian psychologist Sigmund Freud believed dreams were the expressions of wishes that we can't fulfill in our real lives. Others have wondered whether dreams are just random "noise" coming from a sleeping brain.
3. Could we someday live forever?
Apart from accidents, most people die because of diseases that can be treated and aging. And since many diseases, such as diabetes（糖尿病） and cancer, are diseases of aging, treating aging itself could be the key to extending our lives.
Our knowledge of what causes us to age - and what allows some animals to live longer than others - is expanding rapidly. And though we haven't quite worked out all the details, we've worked out some pieces of the puzzles such as DNA damage and metabolism (新陳代謝), which are all leading to the invention of drugs that can slow down the aging process.
If we're lucky enough to lengthen our lives, we might even get to see the day when all of these questions are answered.
小題1:The main point of the passage is ______.

A．to inform people of the knowledge about the universe and nature

B．to introduce major breakthroughs that have been made in science

C．to present some questions we can't yet answer

D．to explain what were once mysteries to our ancestors

小題2:Chimpanzees and bananas are mentioned as examples to prove that ______.

A．human beings are actually not different from other animals

B．animals have completely different DNA from that of plants

C．both animals and plants share the same amount of DNA

D．DNA alone is not good enough to make humans different

小題3:The underlined word "identical" is closest in meaning to ______.

A．mysterious

B．unique

C．advanced

D．same

小題4:Which of the following statements is TRUE according to the passage?

A．What were mysteries to our ancestors are considered to be common sense now.

B．Now we know much more about dreams than our ancestors did in the past.

C．With the invention of new drugs people can possibly live even longer.

D．If all the diseases can be treated people can theoretically live forever.

小題1:C
小題2:D
小題3:D
小題4:C

試題解析：本文講述了一些到現在為止科學還不能做出解釋的幾個問題。
小題1:C主旨大意題。通讀全文和根據第二段隨后點題句：But still, there are always questions we can't yet answer, and The Guardian has listed some of them.所以C正確。
小題2:D細節推理題。根據第一個問題第一句話：Just looking at your DNA won't tell you - human DNA is 99 percent identical to that of the chimpanzee and, believe it or not, 50 percent identical to a banana's!僅看你的DNA是不能辨別出你的，因為人類的DNA是百分之99與黑猩猩相同，信不信由你，百分之50和香蕉是相同的！所以D正確。
小題3:D詞義猜測題。根據全句Just looking at your DNA won't tell you - human DNA is 99 percent identical to that of the chimpanzee and, believe it or not, 50 percent identical to a banana's!僅看你的DNA是不能辨別出你的，因為人類的DNA是百分之99與黑猩猩相同，信不信由你，百分之50和香蕉是相同的！和下文內容，所以D正確。
小題4:C細節理解題。根據倒數第二段最后And though we haven't quite worked out all the details, we've worked out some pieces of the puzzles such as DNA damage and metabolism (新陳代謝), which are all leading to the invention of drugs that can slow down the aging process.盡管我們還沒有解決所有的細節，但我們已經解決了部分的困惑，像DNA的損害和新陳代謝，這導致了減緩我們衰老的藥的發明，所以C正確。

練習冊系列答案

年級	高中課程	年級	初中課程
高一	高一免費課程推薦！	初一	初一免費課程推薦！
高二	高二免費課程推薦！	初二	初二免費課程推薦！
高三	高三免費課程推薦！	初三	初三免費課程推薦！
更多初中、高中輔導課程推薦,點擊進入>>

相關習題

科目：高中英語 來源：不詳 題型：閱讀理解

Everyone has heard of the San Andreas fault （斷層）, which constantly threatens California and the West Coast with earthquakes. But how many people know about the equally serious New Madrid fault in Missouri?
　　 Between December of 1811 and February of 1812, three major earthquakes occurred, all centered around the town of New Madrid, Missouri, on the Mississippi River. Property damage was severe. Buildings in the area were almost destroyed. Whole forests fell at once, and huge cracks opened in the ground, releasing some strong smell chemicals.
　　 The Mississippi River itself completely changed character, developing sudden rapids and whirlpools (激流和漩渦). Several times it changed its course, and once, according to some observers, it actually appeared to run backwards. Few people were killed in the New Marid earthquakes, probably simply because few people lived in the area in 1811; but the severity of the earthquakes are shown by the fact that the shock waves rang bells in church towers in Charleston, South Carolina, on the coast. Buildings shook in New York City, and clocks were stopped in Washington, D.C.
Scientists now know that America's two major faults are essentially different. The San Andreas is a horizontal boundary between two major land masses that are slowly moving in opposite directions. California earthquakes result when the two masses make a sudden move.
The New Madrid fault, on the other hand, is a vertical fault; at some points, possibly hundreds of millions of years ago, rock was pushed up toward the surface, probably by volcanoes under the surface. Suddenly, the volcanoes cooled and the rock collapsed, leaving huge cracks. Even now, the rock continues to settle downwards, and sudden sinking motions cause earthquakes in the region. The fault itself, a large crack in this layer of rock, with dozens of other cracks that split off from it, extends from northeast Arkansas through Missouri and into southern Illinois.
　　 Scientists who have studied the New Madrid fault say there have been numerous smaller quakes in the area since 1811; these smaller quakes indicate that larger ones are probably coming, but the scientists say they have no method of predicting when a large earthquake will occur.
小題1:This passage is mainly about ___________.

A．current scientific knowledge about faults

B．the San Andreas and the New Madrid faults

C．the causes of faults 　　　　　　　

D．the New Madrid fault in Missouri

小題2:The New Madrid fault is __________.

A．a vertical fault

B．a horizontal fault

C．a more serious fault than the San Andreas fault

D．responsible for forming the Mississippi River

小題3:This passage implies that _________.　　　　　　.

A．horizontal faults are more dangerous than vertical faults

B．Vertical faults are more dangerous than horizontal faults

C．The volcanoes that caused the New Madrid fault are still alive

D．A lot of people would die if the 1811 New Madrid earthquakes happened today

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

The home computer industry has been growing rapidly in the United States for the last ten years . Computers used to be large, expensive machines that were very difficult to use . But scientists and technicians have been making them smaller and cheaper while at the same time they have been made easier to use. As a result, their popularity has been increasing as more people have been buying computers for their homes and businesses. Computers have been designed to store information and compute problems that are difficult for human beings to work out. Some have voices that speak with the operators. Stores use computers to keep records of their inventories(庫存貨物) and to send bills to their customers(顧客) . Offices use computers to copy letters, record business and keep in touch with other offices. People have been using computers in their homes to keep track of the money they spend.
One important new use for computers is for entertainment(娛樂). Many new games have been designed to be played on the computers. People of all ages have been playing these games, People also have been buying home computers to play computer games, watch movies and listen to concerts at home. They have become very popular indeed.
小題1: Computers used to _____.

A．work rapidly	B．be large and expensive
C．be easy to use	D．be used for fun

小題2: In recent years , computers are being made ______.

A．larger and more expensive	B．smaller and cheaper
C．more difficult to use	D．to work more slowly

小題3: Home computers can be used for ______.

A．writing letters	B．playing games
C．doing business	D．all of the above

小題4: Salesmen use computers mainly to ______.

A．check the list of goods and materials that are kept in the store house

B．play games for pleasure

C．talk with their friends

D．write letters

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

GCSEs not fit for purpose
GCSEs（General Certificate of Secondary Education，普通中等教育證書）encourage "teaching to the test" and may be past their sell-by date, according to Britain's leading business organization. The Confederation of British Industry（CBI） warns that the qualification is stopping teachers delivering an "inspirational classroom experience" and should be replaced.
John Cridland, the CBI director general, said industry faced a shortage of key skills, particularly in science and maths. The CBI（英國工業聯合會）, which represents more than 240,000 companies, is also concerned about the 40% of young people who fail to achieve the benchmark of five good GCSE passes including English and maths. The percentage of pupils who reach this standard is the main measure of school success.
Speaking at the launch of a CBI inquiry into education, Cridland argued that abandoning GCSEs could help deliver a full education. "There's something about this GCSE limitation which produces a form of learning ------ teaching for the test.’’
"It frustrates teachers because it stops them delivering that inspirational classroom experience."
The CBI head suggested that raising the school leaving age to 18 – a change that comes into effect in 2015 – is an opportunity to reform the system. "It seems to me that we've raised the participation age to 18 and we're left with an education system that focuses on 16," said Cridland. More than 600,000 children in England, Wales and Northern Ireland are due to take GCSEs this summer.
Many other countries do without a public exam at 16. Finland, the highest performing school system in Europe, has just one public exam, at 18, though children are regularly tested at younger ages.
小題1:What does the author intend to tell us in paragragh1？

A．“Teaching to the test” should be encouraged.

B．We should stop teachers delivering “inspirational experience”.

C．The current qualification is out of date and should be replaced.

D．The Confederation of British Industry should be replaced.

小題2:What’s the main idea of the passage？

A．The British GCSEs are no longer practical and should be reformed.

B．In the GCSEs system , teachers don’t have freedom.

C．Five good GCSEs is hard to achieve.

D．The British Education Department will reform education system.

小題3:The meaning of the underlined word “benchmark” in paragraph 2 may be ______.

A．success

B．target

C．standard

D．excellent grades

小題4:Where can we find this article?

A．TV series	B．radio news
C．newspaper education section	D．government report

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Jiang Nan, a full-time mother in Beijing, keeps a dozen or so cloth bags at home, carefully selecting one or two before heading out to get groceries. "Most of them were giveaways from advertising marketing campaigns, but others had been handed out in the street by various environmental protection organizations," she explained.
　　Since June 2008 China has forbidden the production, sale and usage of plastic bags thinner than 0.025 millimeter (毫米), and retailers (零售商) are not allowed to provide free plastic bags to their customers, no matter how thick they are.
　　Many Chinese consumers like Jiang have learned to refuse plastic bags whenever possible in their shopping. "A plastic bag may only cost a few jiao, but it's more about how bad they are for the environment," Jiang said.
　　The plastic ban is for the most part well carried out in big cities, and has been obviously effective in reducing white waste. On the first anniversary of the plastic ban Global Village of Beijing, an NGO environmental organization, shows that during the year of the ban the consumption of plastic bags fell by about 40 billion pieces in chain supermarkets alone, saving more than 1.2 million tons of petrol.
　　However, enforcement (實施) shows rather less muscle in smaller cities, towns and countryside. In a remote town like Lichuan, the awareness of environmental protection is not as strong as that in big cities. Street vendors (街頭小販) worry that they are likely to lose customers if they charge them for plastic bags. Seeing no significance in the issue, local government often turn a blind eye to banned bag trade in the market.
　　There are still those who don't have an interest in living green. Cui Lin, another Beijinger, often forgets to bring a cloth bag when shopping, and has to buy plastic bags. "Anyway I think plastic bags are neater and cleaner, and I don't mind paying a couple more jiao," he shrugged.
　　Mrs Yu, a vegetable vendor in Lichuan County, Jiangxi Province, recalled that before plastic bags became popular in the early 1990s, Chinese people always carried a bamboo basket when they visited the market. "Plastic bags are more convenient," she comments, and her view might be that of the tens of millions of people in the nation who still cling to plastic bags, paid or free. This is suggested by her trade where piles of plastic bags are still passed out every day.
小題1: In Paragraph 1, the writer uses Jiang Nan's case to __________.

A．introduce a topic	B．tell a story
C．describe a person	D．offer an argument

小題2:How did Jiang Nan get her cloth bags?

A．She bought them at a low price.

B．She borrowed them from her relatives.

C．She got them for free.

D．She made them herself.

小題3:Which is NOT the reason why some people still use plastic bags when shopping?

A．Cloth bags are difficult to get and heavy to carry.

B．People's awareness of environmental protection is not strong enough.

C．People don't mind paying a couple more jiao for plastic bags.

D．Street vendors worry that they are likely to lose customers if they charge them.

小題4:What does the underlined phrase “cling to” in the last paragraph mean?

A．stop using

B．continue to use

C．stay close to

D．hold tightly

小題5:What message does the writer mostly convey in the passage?

A．To reduce white waste is urgent.

B．The plastic bag ban has achieved great success.

C．There is still a long way to go for the plastic bag ban.

D．People's awareness of environmental protection should be stressed.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

As a result of pollution, Lake Erie, on the borders of the USA and Canada, is now without many living things.
Pollution in water is not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organisms (生物體) to be affected are either plants or plankton (浮游生物). These organisms are the food of fish, birds, and other creatures. When this food disappears, the fish and birds die too. In this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening.
Where do the substances which pollute water come from? There are two main sources, sewage(污水) and industrial waste. As more detergent (洗滌劑)is used in homes, more of it is finally put into our rivers, lakes and seas. Detergents harm water birds by breaking down the natural substances which keep their feathers waterproof. Sewage itself, if not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need. Industrial waste is even more harmful since there are many highly poisonous materials in it, such as copper and lead.
So if we want to stop this pollution, the answer is simple. Sewage and industrial waste must be made clean before flowing into the water reservoirs. It may already be too late to save some rivers and lakes, but others can still be saved if the correct action is taken at once.
小題1:Pollution in water is noticed ________.

A．when the first organisms are affected

B．when many fish and birds die

C．when poisons are poured into water

D．As soon as the balance of nature is destroyed

小題2:Living things die in a lake or river because there is no ________.

A．water

B．fish

C．Poison

D．oxygen

小題3:The underlined word “waterproof” in the third paragraph means “ ”.

A．full of water	B．not allowing water to go through
C．covered with water	D．cleaned by water

小題4:Which of the following things is /are harmful according to the passage？

A．Industrial waste and chemicals	B．Water in the river
C．Coal and wood	D．plastic

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

There has been a dramatic increase in the number of natural disasters over the past few years，and it is assumed that global warming and climate change could cause even more disasters in the future.Some of the world’s leading cities are facing disasters like floods and heat waves.
London
London’s flood defences are getting older. Since 1982, the Thames Barrier(水閘) has protected the city from the threat of flooding，but it was only designed to last until 2030 and close once every two or three years. About 21 years later the barrier now closes five or six times a year and according to Environment Agency predictions, by 2050 the barrier will be closed on almost every tide if the problem is not addressed.
There are 26 underground stations, 400 schools, 16 hospitals, an airport and 80 billion worth of property in London's flood risk area, so large scale flooding would be disastrous.
Paris
Over a sixweek period in July and August 2008，more than 11400 — mainly elderly people — died in France from dehydration (脫水) and extremely high body temperature in a deadly heat wave. Heat waves of similar intensity (強度) are expected every seven years by 2050, so what can be done to make sure such a disaster does not happen again?
One solution is to have airconditioners installed in elderly care homes. But this is considered a shortterm solution, as the increase in demand for electricity also increases carbon emissions.
In Paris the local authorities are encouraging architects to design new types of buildings such as the building “Flower Tower”, which uses a covering of bamboo to act as a natural airconditioner.
Shanghai
Shanghai is the fastest growing city on Earth. It has a population of 18 million and is only 4 meters above sea level. Sea levels are predicted to rise by 20 cm within the next century.
An estimated 250,000 people move to Shanghai every year in search of work, placing extra demands on energy consumption. China relies heavily on coalfired power stations, but these emissions increase temperatures and, in turn, warmer seas increase the risk of typhoons.
小題1:Which of the following would be the best title for the passage?

A．Big Cities Facing Big Disasters	B．Big Disasters in the Future
C．The Increase of Natural Disasters	D．Solutions to Natural Disasters

小題2:What problem should be settled now in London?

A．How to protect the city’s property.

B．Where to build its flood defences.

C．How to use the Thames Barrier to protect the city.

D．How to improve the function of the old flood defences.

小題3: Which of the following measures can’t solve the heat wave disaster in Paris?

A．Putting up new types of buildings with a covering of bamboo.

B．Having airconditioners installed in elderly care homes.

C．Forbidding the city to build “Flower Tower”.

D．Encouraging architects to design new types of buildings.

小題4:The major threats to Shanghai are ________.

A．increasing population and coalfired power stations

B．rising sea levels and typhoons

C．extremely high temperature and rising sea levels

D．extra demands on energy consumption and typhoons

小題5:The purpose of the passage is ________.

A．to tell us how to protect the big cities

B．to give advice on how to defend natural disasters

C．to explain what causes flood and heat waves

D．to warn us of the increasing natural disasters in big cities

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Over a period of time, many habitats (棲息地)change with respect to the types of plants and animals that live there. This change is known as succession.
Succession occurs because plants and animals cause a change in the environment in which they live. The first weeds and grasses that appear on a bare field, for example, change the environment by shielding the soil from direct sunlight. As these plants spread, the ground becomes cooler and more moist than it was originally. Thus, the environment at the ground surface has been changed. The new surface conditions favor the sprouting（產生）of shrubs. As shrubs grow, they kill the grasses by preventing light from reaching them and also enhance (增加)the soil. Pine seedlings (苗)soon take hold and as they grow, they in turn shade out the shrubs. They are not able to shade out oak and hickory (山核桃)seedlings, however, that have found the forest floor suitable. These seedlings grew into large trees that eventually shade out the pines.
小題1:The best title of this passage is _____.

A．The Importance of Weeds and Grasses

B．The Success of Oak and Hickory

C．How Environmental Habitats Change

D．Animal and Plant Habitats

小題2:It can be inferred (推理) from the passage that ______.

A．oak and hickory trees grow taller than pines

B．weeds and grasses prefer cold climate

C．pines and grasses can exist together

D．birds encourage the growth of shrubs

小題3: Which of the following is a stage of succession as described in the passage?

A．A forest cut down to build an airport.

B．A flood washing away a crop of wheat

C．Wild flowers growing in an unused parking lot

D．Animals being tamed (馴服)by children

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

Electrical devices(儀器)could soon use power made by human energy. Scientists say
they have developed an experimental device that produces electricity from the physical movement of a person walking. British scientist Max Donelan and other scientists in Canada and the United States developed the device.
The device connects to a person’s knee. As the person walks, the device captures energy each time the person slows down. To do this, the device helps with the slowing down movement of the leg. The movements of the walking person push parts of a small machine
that produces electricity. Using the device, an adult walking quickly could produce thirteen watts of electricity in just a minute. Donelan says walking at that speed could produce enough power to operate a laptop computer for six minutes.
There are several possible uses for the device. Developers say it could help people who work in areas without electricity to operate small computers. The device could also be used in hospitals to operate heart pacemakers(起搏器). It could even be used to assist in the movement of robotic arms and legs.
The experimental version of the device weighs about one and a half kilograms, but it is too costly for most people to buy. But the researchers hope to make a lighter, less costly version. An improved version shou1d be ready in one year.
The developers hope the device will one day help developing countries. Near1y twenty five percent of people around the world live without electric power.
A similar product was invented in 2005 by Larry Rome of the University of Pennsylvania. He created a bag carried on a person’s back that also produces power from wa1king.
The knee device does not produce as much electricity as the bag. But the bag requires the walker to carry a load of twenty to thirty kilograms.
小題1:The second paragraph mainly talks about .

A．who developed the device

B．how the device works

C．several possible uses for the devices

D．how much electricity the device can produce

小題2:What is the disadvantage of the experimental version of the device?

A．It is too heavy for the walker to bear.

B．It is too complex for people to use.

C．It is too expensive for most people to afford.

D．It will slow down one’s walking speed.

小題3:Compared with the device designed by Larry Rome, this new device .

A．produces power without adding more loads to the walker

B．can produce more power in a much shorter time

C．needs to be equipped with a battery

D．can help the walker wa1k faster

小題4:From the passage, we can learn that the electrical device can .

A．help housewives operate the washing machine

B．make it much easier for us to go online

C．produce more electricity than that invented by Larry Rome

D．be applied in medicine to operate heart pacemakers

小題5:What would be the best title for the passage?

A．First device powered by walking wi1l soon be on the market

B．Advanced technology brings in a new way to operate heart pacemakers

C．Device gives new meaning to the idea of power walking

D．Human energy will become a main source of electricity

查看答案和解析>>

同步練習冊答案

練習冊

高中

初中

小學