Botany (植物學(xué)) , the study of plants, occupies a particular position in the history of human knowledge.For many thousands of years it was the one field of awareness about which humans had anything more than the vaguest (模糊的)) of insights.It is impossible to know today just what our Stone Age ancestors knew about plants, but from what we can observe of pre-industrial societies that still exist, a detailed learning of plants and their properties must be extremely ancient.This is logical.Plants are the basis of the food pyramid for all living things even for other plants.They have always been enormously important to the welfare of people not only for food but also for clothing, tools, medicines, shelter, and a great many other purposes.Tribes living today in the jungle of the Amazon recognize hundreds of plants and know many properties of each.To them, botany has no name and is probably not even recognized as a special branch of "knowledge" at all.
Unfortunately, the more industrialized we become, the farther away we move from direct contact with plants, and the less distinct our knowledge grows.Yet everyone comes unconsciously on an amazing amount of botanical knowledge, and few people will fail to recognize a rose or an apple.When nor Neolithic ancestors, living in the Middle East about 10,000 years ago, discovered that certain grasses could be harvested and their seeds planted for richer fields the next season—the first, great step in a new association of plants and humans was taken.Grains were discovered and from them flowed the wonder of agriculture: cultivated crops.From then on, humans would increasingly take their living from the controlled production of a few plants, rather than getting a little here and a little there from many varieties that grew wild, and the accumulated knowledge of tens of thousands of years of experience with plants in the wild would begin to fade away.
小題1:What does the writer mean when he says "This is logical" in the first paragraph?
A.Human knowledge of plants is well organized and very detailed.
B.It is not surprising that early humans had a detailed knowledge of plants.
C.There is no clear way to determine the extent of our ancestor's knowledge of plant.
D.It is reasonable to assume our ancestors behave much like people in pre-industrial societies.
小題2:According to the passage, general knowledge of botany begun to fade away because ____.
A.people no longer value plants as a useful resource
B.direct contact with a variety of plants has decreased
C.botany is not recognized as a special branch of science
D.research is unable to keep up with the increasing number of plants
小題3:We learn that the first great step toward the practice of agriculture is____.
A.the changing diets of early humans
B.the development of a system of names for plants
C.the invention of agricultural implements (工具) and machinery
D.the discovery of certain grasses that could be harvested and replanted
小題4:Human would depend on the controlled production of a few plants for living with
A.the knowledge of plants
B.the discovery of certain grasses
C.the development of machinery
D.the appearance of agriculture

小題1:B
小題2:B
小題3:D
小題4:D

試題分析:
小題1:B 細(xì)節(jié)題。根據(jù)第一段3,4,5行It is impossible to know today just what our Stone Age ancestors knew about plants, but from what we can observe of pre-industrial societies that still exist, a detailed learning of plants and their properties must be extremely ancient.This is logical.說明史前人類可以對植物有一個很好的了解、故B正確。
小題2:B 推理題。根據(jù)第二段1,2行Unfortunately, the more industrialized we become, the farther away we move from direct contact with plants, and the less distinct our knowledge grows.說明現(xiàn)代人與植物的直接的接觸越來越少,導(dǎo)致我們這方面的知識越來越少。故B正確,
小題3:D 細(xì)節(jié)題。根據(jù)第二段3,4,5行When nor Neolithic ancestors, living in the Middle East about 10,000 years ago, discovered that certain grasses could be harvested and their seeds planted for richer fields the next season—the first, great step in a new association of plants and humans was taken.說明人們認(rèn)識到某些草是可以收獲和重新種植的時候,人們走出了農(nóng)業(yè)的第一步。故D正確。
小題4:D 細(xì)節(jié)題。根據(jù)文章最后三行From then on, humans would increasingly take their living from the controlled production of a few plants, rather than getting a little here and a little there from many varieties that grew wild, and the accumulated knowledge of tens of thousands of years of experience with plants in the wild would begin to fade away.說明隨著農(nóng)業(yè)的出現(xiàn),人類依靠著控制著一些植物的生長來存活。故D正確。
點評:文章講述了人類與植物的緊密聯(lián)系,在人類的發(fā)展歷史上,植物是不可缺少的一環(huán)。農(nóng)業(yè)的發(fā)展也正是與認(rèn)為對植物的進(jìn)一步了解慢慢加深的。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源:不詳 題型:閱讀理解

A new study says one part of the human brain may become smaller as the result of a condition known as jet lag. Jet lag results from flying long distances in an airplane. People with jet lag may feel extremely tired for several days. They may also have problems thinking clearly and remembering.
Recently a researcher at the University of Bristol in Britain reported the findings of his jet lag study, which involved twenty young women who worked for international airlines. They had served passengers on airplanes for five years. These flight attendants flew across many countries and at least seven time zones. In the study, the flight attendants had different amounts of time to recover from jet lag. Half the women spent five days or fewer in their home areas between long flights. The other half spent more than fourteen days in their home areas.
The researcher took some saliva from the women”s mouths to measure levels of a hormone(荷爾蒙) that increases during stress(緊張). He tested them to see if they could remember where black spots appeared on a computer screen. And he took pictures of their brains to measure the size of the brain”s temporal lobes(腦葉).
It was found that the women who had less time between flights had smaller right temporal lobes. This area of the brain deals with recognizing and remembering what is seen. The same group performed worse and had slower reaction times on the visual memory test. And their saliva samples showed higher levels of stress hormones.
The researcher believes the brain needs at least ten days to recover after a long trip. He says airline workers told him their ability to remember got worse after working on planes for about four years. Other studies have shown that increased feelings of stress can cause a loss of cells in the part of the brain that controls memory.
Scientists say more tests are needed to study the effects of jet lag on the brain. They want to find out if too much jet lag could permanently (永久性的) affect memory.
小題1:According to the text, jet lag .
  1. can cause difficulties in speaking
  2. can make people feel tired for a few weeks
  3. can be only found in flight attendants
  4. can be caused by flying over several time zones
小題2:It can be inferred from the text that .
  1. the conclusion is refused by many scientists
  2. scientists fear that this research is not done properly
  3. the scientific conclusion needs the support from many tests
  4. every women who were examined in the research were mot healthy
小題3:From the result of the research we can see that .
  1. the women who have longer rest at home show better memory
  2. the women who fly in short time have smaller right temporal lobes
  3. the women who have longer flights fail the memory test
  4. the women who rest more than 14 days produce less hormones
小題4:What is the subject discussed in the text?
  1. The cause of jet lag.
  2. A story of a group of flight attendants.
  3. The importance of having enough rest after flights.
  4. A research about the effects of jet lag on the brain.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


Many of us don’t like what we see around us but the last thing we do is to change it. I think that is the beginning of failure and that is why what we hate remains around us. If you don’t want to see things around you, don’t just hope it’ll change.
We have such an amazing power of creativity inside us to change the way things work around us. Only lazy people go about and say that is the way things have been working. I’ve come to discover that things around us depend on our actions and inactions. What I mean is that the circumstances that we like depend only on the things we do and the things we don’t do.
Do you want your country to change? Start by changing the small things around you. Before you think too far about any small thing to change, your habit should be the first thing to change. Change what you think about and talk about. Can you remember how difficult it was for you to break a habit that you desired to break some years back? If so, then you must accept that things aren’t just going to change by a magic thought. If it isn’t so easy to change yourself when you want to, it isn’t going to be so easy to change the people around you.
I think the best way I’ve changed people around me is that I changed myself. When you change, they’ll change. Just change yourself and see how many people will tell you later that you are the one who changes them. That’s one simple way young people can change their nations.
小題1: According to the text, why do we fail to change what we don’t like? _______
A.Because we lack the power of creativity.
B.Because we never plan to change them.
C.Because they cannot be changed.
D.Because we don’t have the ability.
小題2:The author can change people around him because he has realized that     .
A.things around us decide what we do
B.the further you think, the better
C.his actions can affect things around him
D.he has to change the nation first
小題3:The third paragraph aims at     .
A.telling readers one of the author’s interesting experiences
B.giving an example to show how to change things around us
C.showing readers how to change a nation
D.a(chǎn)sking us to remember to change our nation
小題4:What can we learn from the text? ________
A.Circumstance creates a person.
B.It is never too late to change your habits.
C.A long journey begins with the first step.
D.Changing ourselves means changing others.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

India was once part of the British Empire, but thanks to modern technology and a booming economy, it has turned the tables on its former colonial master. Indian tutors are helping to teach math to British children over high-speed Internet connections. Early results suggest the idea is improving exam results. But not everyone is happy at this “outsourcing” of tutoring.
It’s 3:30, and pupils at Raynham Primary School in London are gathering for their after-school maths lessons.
Five time zones— thousands of kilometers away—their math tutors are also arriving for class. High-speed Internet has made it possible for Indian tutors to teach British pupils in real time. Each pupil gets a dedicated one-to-one online tutor. The students work with activities on their computer screen and wear a headset and microphone to talk to their tutor.
The class teacher, Altus Basson, says he has seen an improvement in results. “There are some children who’ve really rocketed in their results. Children who struggleto focus in class focus a lot better on the laptops. The real advantage is that each child gets a focused activity and a single tutor,” he said.
Such individualized teaching is the core idea of Brightspark Education, the company that provides the online tutoring, says founder Tom Hooper. “Children today feel very confident online; they feel very engaged; they feel very in control. And that's half the battle with education.Give them control, make them feel confident and enjoy their learning and you'll see them start to improve and embrace it," he said.
Raynham Primary School is among the first in Europe to try online tutoring. At between $20 and $25 an hour, it's about half the cost of face-to-face coaching. But some people say an Internet connection is not enough of a connection for teaching and learning. Kevin Courtney is deputy General Secretary of Britain's National Union of Teachers. "We think, there's a really important emotional connection between a teacher and a child whether it's a whole class or whether it's one-to-one. You need that immediacy of feedback and we're not convinced that that can happen across an Internet connection. In one of the wealthiest.countries in the world, we think that we can afford to have teachers with genuine emotional connection there with the children," he said.
Brightspark Education says the online tutoring is used only as an addition to supplement regular teaching. The company says its service does not represent a threat to teachers' jobs in Britain.
Parents say they're very satisfied with the results they've seen. And what about the children?Children: "I love it!"I love it!"I hate maths!" So math--or, as the British call it, maths—is still not everyone's favorite subject even with the latest technology to teach it.
小題1:What do we know about the online tutoring?
A.Indian tutors are helping to teach math in Britain.
B.Tutors and students are in different places.
C.An online tutor helps several students at the same time.
D.Tutors and students communicate by telephone.
小題2:What can we learn about Brightspark Education? 
A.It shows a threat to teachers’ jobs in Britain.
B.It can take place of the regular teaching.
C.It only pays attention to math teaching.
D.It emphasizes the individualized teaching.
小題3:According to Kevin Courtne, _________.      .
A.online tutoring will represent a threat to teachers’ jobs in Britain
B.online tutoring has a great influence on British.
C.the emotional connection between a teacher and a child is important
D.immediacy of feedback can happen across an Internet connection
小題4:What’s the best title for this passage ?
A.A New Teaching Pattern
B.Indian Teachers and British Students
C.To Learn Maths with the Latest Technology
D.Indian Tutors Teach British Kids Online

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Many children use the Internet to get useful knowledge and information, and to relax in their free time. But some of them are not using it in a good way. Here are some rules to make sure you are safe and have fun on the Internet.
※Make rules for Internet use with your parents. For example, when you can go online, for how long and what activities you can do online.
※Don’t give your password(密碼)to anyone else, and never give out the following information: your real name, home address, age, school, phone number or other personal information.
※Check with your parents before giving out a credit(信用)card number.
※Never send a photo of yourself to someone in email unless your parents say it’s OK.
※Check with your parents before going into a chat(聊天)room. Different chat rooms have different rules and attract different kinds of people. You and your parents will want to make sure it’s a right place for you.
※Never agree to meet someone you met on the Internet without your parent’s permission(允許). Never meet anyone you met online alone.
※Always remember that people online may not be who they say they are. Treat everyone online as if they were strangers.
※If something you see or read online makes you uncomfortable, leave the site. Tell a parent or teacher right away.
※Treat other people as you’d like to be treated. Never use bad language.
※Remember - not everything you read on the Internet is true.
小題1:The writer tells children to _________.
A.send their own photos to him
B.make rules for Internet use with parents
C.believe everything they read on the Internet
D.give out their personal information
小題2:It’s good for children to ______ on the Internet.
A.give password to others
B.get useful knowledge and information
C.give out a credit card number
D.go into a chat room as they’d like to
小題3:What shouldn’t be done when you are on line? _________
A.Using bad language
B.Sending messages and emails
C.Leaving the site if you feel uncomfortable
D.Treating everyone online as strangers
小題4:If your parents don’t agree, never ________.
A.read anything on the Internet
B.relax in your free time
C.have a face-to-face meeting with anyone you met online
D.treat other people as you’d like to be treated
小題5:The passage is mainly about _________ .
A.How to use computersB.Surfing on the Internet
C.Information on the InternetD.Internet safety rules

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

There are many international organizations which work to save and protect endangered species(物種) and natural environment. If you would like more information about any of the organizations listed below, you can write to the addresses given.
Friends of the Earth
Friends of the Earth (FOE) campaigns on a range of problems including rainforests, the countryside, water and air pollution and energy.
Friends of the Earth International Secretariat P.O. Box 19199
1000 G. D.
Amsterdam
The Netherlands
Greenpeace
Greenpeace uses peaceful but direct action to defend the environment. It campaigns to protect rainforests and sea animals, stop global warming and end pollution of air, land and seas. It also opposes nuclear(核) power.
Greenpeace International
Keizergracht 176
1016 DW Amsterdam
The Netherlands
BirdLife
INTERNATIONAL
BirdLife International is an organization which works to save endangered birds all over the world.
BirdLife International
Wellbrook Court
Girton Road
Cambridge CB3 ONA
England
WWF
WWF-World Wide Fund For Nature is the world’s largest private international organization for the protection of nature and endangered species.
Information Officer
WWF International
Avenue du Mont-Blanc
1196 Gland
Switzerland
小題1:If you want to learn more about the organizations, you can           .
A.call themB.write them a letterC.visit themD.send them an e-mail
小題2:Which problem will be paid close attention to by FOE?
A.Overhunting ocean animalsB.Killing endangered birds
C.Heavy air pollutionD.Global warming
小題3:If you are against nuclear power, you can join         .
A.Friends of the EarthB.World Wide Fund For Nature
C.GreenpeaceD.BirdLife International
小題4:What can we learn about WWF?
A.It helps to protect nature and save endangered animals
B.It is the world’s largest international organization
C.It works for private companies and rich people
D.It is a private organization in the United States
小題5: Which is the best title for the passage?
A.Environmental protection organizationsB.Global traffic problems
C.Endangered animalsD.Natural beauty

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

The hole in the earth's protective ozone layer(臭氧層)won't repair itself until about two decades later than had been expected, scientists announced.
The ozone layer blocks more than 90 percent of the sun's ultraviolet radiation(紫外線輻射), helping to make life on Earth possible. For many dacades, ozone was depleted(削減) by chlorine and bromine gas in the air. A hole in the ozone layer formed over the Southern Hemisphere.
Computer models had forecast that the hole would fill back in by 2050. An improved computer model forecasts the recovery won't occur until 2068. The model, fed with fresh data from statellites and airplanes, was supported by the fact that it accurately reproduced ozone levels in the Antarctic stratosphere(平流層)over the past 27 years.
The ozone hole is actually more of a broad region with less ozone than ought to occur naturally. It is not limited to Antarctica, as is often believed.
Over areas that are farther from the poles like Africa or the US, the levels of ozone are only three to six percent below natural levels. Over Antarctica, ozone levels are 70 percent lower in the spring. This new method allows us to more accurately estimate(估計)ozone-depleting gases over Antarctica, and how they will decrease over time, reducing the ozone hole area.
Paul Newman, a scientist,said that the ozone hole has not started to become smaller as quickly as expected. They figure it will not become much smaller until 2018, after which time the recovery should proceed more quickly. And the hole will not be filled in again until 2065.
小題1:According to the passage, the ozone layer _______
A.a(chǎn)bsorbs as much as sunlight as possible
B.protects man against ultraviolet radiation
C.controls the changes in temperature
D.prevents the production of carbon dioxide
小題2:The improved computer model is believable because _________
A.it was once proved by facts
B.it has been studied for 27 years
C.it was created by many scientists
D.it is related to satellites and airplanes
小題3:The underlined word “they” in the fifth paragraph refers to ________
A.the levels of ozone
B.ozone-depleting gases
C.the ozone holes
D.the areas far from the poles

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Because plants cannot move or talk, most people believe that they have no feelings and that they cannot receive signals from outside. However, this may not be completely true.
People who studied plants have found out that plants carry a small electrical charge (電荷). It is possible to measure this charge with a small piece of equipment called “galvanometer”. The galvanometer is placed on a leaf off the plant, and it records any changes in the electrical field of the leaf. Humans have a similar field which can change when we are shocked or frightened.
A man called Backster used a galvanometer for his studies of plants and was very surprised at his results. He found that if he had two or more plants in a room and he began to destroy one of them - perhaps by pulling off its leaves or by pulling it out of its pot - then the galvanometer on the leaves of the other plants showed a change in the electrical field. It seemed as if the plants were signalling a feeling of shock. This happened not only when Backster started to destroy plants, but also when he destroyed other living things such as insects (昆蟲).
Backster said that the plants also knew if someone had destroyed a living thing some distance away, because they signalled when a man who had just cut down a tree entered the room.
Another scientist, named Sauvin, achieved similar results to Backster’s. He kept galvanometers fixed to his plants all the time and checked regularly to see what the plants were doing. If he was out of the office, he telephoned to find out about the signals the plants were sending. In this way, he found that the plants were sending out signals at the exact times when he felt strong pleasure or pain. In fact, Sauvin could cause a change in the electrical field of his plants over a distance of a few miles simply by thinking about them.
小題1:Backster was surprised at the results of his studies because _____.
A.he destroyed an insect
B.he destroyed a plant by pulling off its leaves
C.he found that plants could express feelings of shock
D.he found that plants could move and speak after all
小題2:The plants sent out signals _____.
A.only when Backster Started to destroy plants
B.when Backster destroyed plants or other living things
C.only when he destroyed things such as insects
D.only when Backster placed the galvanometer on the leaves of the plants
小題3:The scientist called Sauvin _____.
A.did not agree with Backster’s ideas
B.did not get the same sort of results as Backster did
C.got different results from Backster’s
D.found out some of the same things that Backster did
小題4:Which of the following is true according to the passage?
A.The electrical charge plants carry may shock or frighten us.
B.A tree will signal when it has been cut down.
C.Sauvin could make his plants send out signals some distance away.
D.Plants have feelings because they can receive signals without moving.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Which animal has the fastest snapping jaw (顎)? If you're guessing a shark or perhaps a larger animal, you'll have to think smaller. The trap­jaw ant, which lives in Central and South America, moves its mouth parts at 35 to 63 meters per second. Another way to think about this is that the ant's jaws close at 125 to 233 kilometers per hour. That's 2, 300 times faster than the blink of an eye.
Scientists were able to measure the amazing jaw speed using high­speed video techniques. Sheila Patek, a biologist, says the key is that the jaws have a springy (有彈性的) system, which is critical in getting explosive (爆發(fā)性的) speeds.
Consider a bow and arrow. If you try to throw an arrow with your arm, it won't go very far. If you use a bow, elastic energy stored in the bow is released almost instantly when you release the arrow with your finger or a latch. The combination of the springy bow and latch mechanism is what makes the arrow zoom through the air.
Maybe even more amazing than how fast these ants grab food or even enemies is how they use this same energy to move. As the ant closes its jaws, it uses them to push off the ground—all faster than the eye can see without slow motion video. A snap of the jaw can send an ant up to 8.3 centimeters into the air. That's like someone who is 1.7 meters jumping 13 meters high! Not only can they quickly escape from enemies, but often a group of ants will start jumping all at once. It would be hard for their enemies to grab just one.
People have suspected the ants used their jaws to jump for over a century, but could only prove it with today's modern video equipment.
小題1:The fast speed of the trap­jaw ant's jaw lies in ________.
A.its light body
B.its springy system
C.its living environment
D.the length of its jaw
小題2:The passage uses “a bow and arrow” as an example to show ________.
A.how an arrow gets so much energy to fly
B.why the trap­jaw ants have springy system
C.why the trap­jaw ants jaws move so fast
D.how a bow and arrow works
小題3:Which of the following may amaze the scientists most?
A.How high the ants can leap by using their jaws.
B.How quickly the trap­jaw ants can move on the ground.
C.How wonderfully the springy system in the trap­jaw ants' jaws works.
D.How quickly the trap­jaw ants can grab food or enemies.
小題4:According to the passage, the trap­jaw ants' jaws keep them safe because ________.
A.they can catch their enemies easily with their jaws
B.their jaws make them difficult to recognize
C.their jaws help them find food easily
D.their jaws help them escape from their enemies

查看答案和解析>>

同步練習(xí)冊答案