What time is it? Most people are pretty accurate in their answer. And if you don’t know for sure, it’s a very likely that you can find out. There may be a watch on your wrist, there may be a clock on the wall, desk, or computer screen; or maybe you’re riding in a car that has a clock in the dashboard (儀表板).
Even if you don’t have a timepiece of some sort nearby, your body keeps its own beat. Humans have an internal clock that regulates (調(diào)節(jié)) the beating of our heart, the pace of our breathing, the discharge (排出) of chemicals within our bloodstream, and many other bodily functions.
Time is something from which we can’t escape. Even if we ignore it, it’s still going by, ticking away, second by second, minute by minute, hour by hour. So the main issue in using your time well is, “Who’s in charge?” We can allow time to slip by and let it be our enemy. Or we can take control of it and make it our ally.
By taking control of how you spend your time, you’ll increase your chances of becoming a more successful student. Perhaps more importantly, the better you are at managing the time you devote to your studies, the more time you’ll have to spend on your outside interests.
The aim of time management is not to schedule every moment so we become slaves of a timetable that governs every waking moment of the day. Instead, the aim is to make informed choices as to how we use our time. Rather than letting the day go by, largely without our awareness, what we are going to discuss next can make us better able to control time for our own purposes.
小題1:The underlined word “ally” in Para. 3 more likely means somebody or something that is _________.
A.your slave and serves you
B.your supporter and helps you
C.under your control and obeys you
D.under your influence and follows you
小題2:The author intends to tell us that time _____________.
A.could be regulated by a timepiece such as a clock or a watch
B.could be managed by the internal clock of human bodies
C.should be well managed for our own interest
D.should be saved for outside interests
小題3: In the next part, the author would most probably discuss with you ________.
A.how to keep up with the timesB.how to make up for lost time
C.how to have a good timeD.how to make good use of time

小題1:B
小題2:C
小題3:D

這是一篇議論文,主要論述了如何做時間的主人。
小題1:考點是:猜測詞義的能力。
文章第三段作者亮出觀點:誰來主宰時間,并又進(jìn)一步指出:要么讓時間溜走,成為我們的大敵;要么我們管好時間,使之成為我們的朋友,此處ally一詞和上句的enemy恰好詞義相對,語意相反,可知B為正確答案。
小題2:考點是:推理判斷能力。
作者在文章中闡明了我們?nèi)绾稳ス芾頃r間,進(jìn)而成為時間的主人,所以C項切中文意,為正確答案。
小題3:考點是:推理判斷能力。
從文章最后一段末句可知作者下面將討論我們將如何更好地利用時間為我們服務(wù),故D項為正確答案。
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

Everyday rubbish could provide a valuable source of energy thanks to a clever new invention. Smelly methane(沼氣)gas expelled from landfill sites containing tones of rotting household waste could be used to produce a valuable energy resource. In Europe alone land fill tips produce 94 billion cubic meters of methane per year but currently only one percent of what could be a valuable source of energy is used, the rest is burnt off to prevent an explosive build up of gas.
Methane gas forms when organic matter breaks down and is drawn off from large rubbish tips by pipes sunk into the middle of the waste. Until now this process wasn’t possible on small sites because the pipe allowed oxygen to seep in and that stop the breakdown process.
Viktor Popov of the Wessex Institute of Technology has now developed a system to modify existing landfill sites by making them airtight while the methane is extracted from sunken wells. The site is covered by a special three-layered skin whose two outer layers are made of clay with a pressurized(加壓的)layer of carbon dioxide gas in the middle. As the methane is sucked out through a central well it is replaced by carbon dioxide from the middle layer rather than oxygen, allowing the breakdown process to continue.
Unfortunately there are no plans to use the power of methane even though Popov claims his invention could provide a valuable source of energy over the next 20 years.
小題1:The passage mainly introduces ______ to us.
A.how to make methaneB.a(chǎn) new way to make use of rubbish
C.the valuable things in rubbishD.the amount of rubbish beig reused
小題2:From the passage we can see that _____.
A.in Europe 94 billion cubic meters of methane is produced every year
B.some of the waste will explode if it is not burnt off
C.99% of the rubbish has been burnt off in Europe
D.only a very small part of this kind of energy is used in Europe
小題3:In the passage the underlined word “that” refers to ______.
A.methane gasB.the long pipeC.oxygenD.the rubbish
小題4:Which of the following statement is NOT true according to the passage?
A.Oxygen can cause the breakdown process to stop.
B.When the methane is sucked out, oxygen will enter from the middle layer.
C.Carbon dioxide doesn’t affect the breakdown process.
D.The new invention has not been put into use.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

The African elephant, the largest land animal remaining on earth , is of great importance to African ecosystem(生態(tài)系統(tǒng)). Unlike other animals, the African elephant is to a great extent the builder of its environment. As a big plant-eater, it largely shapes the forest-and-savanna(大草原) surroundings in which it lives, therefore setting the terms of existence for millions of other animals that live in its habitat.
It is the elephant's great desire for food that makes it a disturber of the environment and an important builder of its habitat. In its continuous search for the 300 pounds of plants it must have every day, it kills small trees and underbushes, and pulls branches off big trees. This results in numerous open spaces in both deep tropical forests and in the woodlands that cover part of the African savannas. In these open spaces are numerous plants in various stages of growth that attract a variety of other plant-eaters.
Take the rain forests for example. In their natural state, the spreading branches overhead shut out sunlight and prevent the growth of plants on the forest floor. By pulling down trees and eating plants, elephants make open spaces, allowing new plants to grow on the forest floor. In such situations, the forests become suitable for large hoofed plant-eaters to move around and for small plant-eaters to get their food as well.
What worries scientists now is that the African elephant has become an endangered species. If the elephant disappears, scientists say, many other animals will also disappear from vast areas of forest and savanna, greatly changing and worsening the whole ecosystem.
11. What is the passage mainly about?
A. Disappearance of African elephants.
B. Forests and savannas as habitats for African elephants.
C. The effect of African elephants' search for food.
D. The eating habit of African elephants.
12. What does the underlined phrase “setting the terms” most probably mean?
A. Fixing the time.                                   B. Worsening the state.
C. Improving the quality.                          D. Deciding the conditions.
13. What do we know about the open spaces in the passage?
A. They result from the destruction of rain forests.
B. They provide food mainly for African elephants.
C. They are home to many endangered animals
D. They are attractive to plant-eating animals of different kinds.
14. According to the passage, which of the following statements is TRUE?
A. The African elephant is the largest animal on earth.
B. African elephants have 300 pounds of plants every day, including small trees and underbushes.
C. The African elephant is in a way the builder of the environment like other land animals
D. If the African elephant disappears, the whole ecosystem won’t be affected..
15. The passage is developed mainly by        .
A. showing the effect and then explaining the causes
B. pointing out similarities and differences
C. describing the changes in space order
D. giving examples

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

The United States is trying to improve an edueation system that produces millions of citizens who cannot read, write, or add—let alone finding their country on a map.
In his first State of Union message since taking office a year ago, President George Bush promised to wipe out illiteracy(文盲) in the next decade and declared that“by the year 2008, U.S students must be first in the world in math and science achievements. ” They have a long way to go. American students were placed 14th in a recent general science test conducted in 16 countries. In a separate survey of chemistry students, the United States came 12 out of 14. In a mathematics test, they were last. According to Bush, there are 17 million illiterates in this country of 245 million people. Other estimates put the number as high as 23 million. In percentage terms, that ranks the United States alongside Niearague and below Cuba. “This nation,”Bush said in his State of the Union address, “will not accept anything but excellent in education.” Bush, who has declared himself “Education president”, and senior officals of his administration are warning that the United States will be unable to compete in the world without an educated workforce.
How to increase educational standards is a matter of debate in a country whose schools have no uniform national curriculum and are subject to a confusing variety of state and local controls. Most experts think that the problem lies at the elementary and high school'levels rather than with universities-but even their graduates show huge gaps in general knowledge. Among the root causes most frequently mentioned in education debates is the low respect in which U.S. society holds teachers-in contrast to Japan and Germany. In Japan teaching is a profession of high prestige(威望) and high pay. In the United States teachers are near the bottom of the society.
5.By“the United States came 12 out of 14”(Para. 2), the author means .      
A.the United States ranked 12th not 14th in the chemistry test
B.the United States ranked 12th in the chemistry test conducted by 14 countries
C.the United States progressed from 14th to 12th in the chemistry test
D.the United States ranked 12th in chemistry test and 14th in general science test
6.The cause of low educational level in America include the following EXCEPT that .      
A.some problems exist in primary and secondary education
B.society keeps teachers in low respect
C.America pays more attention to economy instead of education
D.America has no uniform national courses
7.Which of the following statements can be inferred from the passage?
A.President Bush carried out his promise made in his first State of Union message.
B.The education in Japan and Germany is in higher level.
C.According to Bush, the number of illiterates accounts for 9% of the total.
D.Teachers in the United States enjoy good treatment and great respect.
8.Which of the following is the right order of the least-first of the percent of illiterates?
A.Germany, Cuba, Nicaragua.         B.Germany, Nicaragua, Cuba.
C.Nicaragua, Japan, Cuba.            D.Cuba, Japan, Nicaragua.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

GET YOUR DEGREE AT HOME!
Have you ever wondered what a Degree might be worth to you in your job or career(事業(yè))? It means a lot of Americans with an Associate Degree average nearly $10,000 more in yearly earnings than those with just a High School Diploma(畢業(yè)證).
Harcourt Learning Direct offers you a way to get a Specialized Associate Degree in 11 of today’s growing fields-without having to go to college full time. With Harcourt, you study at home, in your spare time-so you don’t have to give up your present job while you train for a better one. Choose from exciting majors like Business Management, Accounting, Dressmaking &Design, Bookkeeping, Photography, Computer Science, Engineering, and more! Your training includes everything you need! Books, lessons, learning aids-even professional-quality tools and equipment-everything you need to master your training and more ahead to a new career is included in the low tuition(學(xué)費) price you pay. Your education is nationally recognized! Nearly 2, 000 American companies-including General Electric, IBM, Mobile, General Motors, Ford, and many others-have used our training for their employees. If companies like these recognize the value of our training, you can be sure that employees in your area will, too!
Earn your degree in as little as two years! Get a career diploma in just six months! The career of your dreams is closer than you think! Even if you have no experience before, you can get valuable job skills in today’s hottest fields! Step-by-step lessons make learning easy. Prepare for promotions(提升), pay raises, even start a business of your own! Send today for FREE information about Harcourt at home training!
Simply fill in your name and address on the coupon(票券) above. Then write in the name and number of the one program you’re most interested in, and mail it today. We’ll rush your free information about how you can take advantage of the opportunities(機(jī)會) in the field you’ve chosen. Act today!
Mail coupon today! Or call the number below 1-800-372-1589. Call any time, 24 hours a day, 7 days a week. www. Harcourt-learning. com E-mail:Harcourt@learning. com.
1. This advertisement aims at calling on people to ________.
A. attend full-time universities                      B. work part time to further their education
C. improve their education at home to get better jobs   D. earn their degrees in different ways that suit them
2. Which of the following is NOT clearly mentioned in this advertisement? 
A. The way how you will get your degree.        B. Tuition price. 
C. The hot fields you will be preparing yourself for.  D. The length of time it will take you to get a degree.
3. What does the writer of this ad intend to say by naming General Electric, IBM, Ford, etc.?
A. To show that their training is widely used in the country. 
B. To show that the training program is fully supported by famous companies in the U. S.
C. To prove the value of their training in every area.  
D. To show the importance of getting recognized by the most famous companies.
4. It seems to the writer that the greatest attraction for people to take their training is______. 
A. its convenience                           B. the degree’s nation-wide recognition
C. the economic benefit(利益) it will bring about  D. the hot fields the training will help people to enter
5. How many ways are mentioned in the ad for people to get in touch with the Harcourt Learning Direct?
A. One.       B. Two.       C. Three.      D. Four.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Have you ever noticed the colour of the water in a river or stream after a heavy rainfall? What do you think caused this change in colour? It is soil that has been washed into the river from the riverbank or from t}le nearby fields.
Components of Soft
Soil is made up of a number of layers(層),each having its own distinctive colour and texture.The upper layer is known as the litter.It acts like a blanket.limiting temperature changes and reducing water loss.The topsoil layer is made up of small particles of rock mixed with rotten plant and animal matter called humus(腐殖質(zhì)),which is black and gives the topsoil its dark colour.This layer is usually rich in nutrients,oxygen,and water.Below the topsoil is the subsoil,a layer that contains more stones mixed with only small amounts of organic matter.This layer is lighter in colour because of the lack of humus.Beneath the soil lies a layer of bedrock.
Soil forms from the bottom up.Over time bedrock is attacked by rain, wind,frost, and snow.It is gradually broken down into smaller particles in a process called weathering.Plants begin to grow,and rotten materials enrich the topsoil.Most of the soil in Eastern Canada.for example.Was formed from weathered rock that was exposed when the ice disappeared l2.000 years ag0.
Water Beneath the Soil
Surface water collects and flows above the ground in lakes.ponds.a(chǎn)nd rivers.Once in the soil or rock,it is called groundwater.Gravity pulls groundwater through the soil in a process called percolation(滲透).Eventually the water reaches a layer called the water table.Under this is bedrock through which water cannot percolate.
As water percolates downward,it dissolves organic matter and minerals from the soil and carries them to deeper layers.This causes a serious problem because plants require these nutrients for growth.
Soil pH
Soil can be acidic.neutral.or basic.The pH of the soil is determined by the nature of the rock
from which it was formed.a(chǎn)nd by the nature of t}le plants that grow and rot in it.
The acidity of rain and snow can lower the pH of the groundwater that enters the soil.By burning fossil fuels such as coal,oil and gasoline,humans have been contributing to higher levels of acidity in many soils.When fossil fuels are burned.gases are released into the air and then fall back to earth as acid rain.Acid soil increases出e problem of carrying nutrients to lower soil levels.As nutrients are removed,soil is less fertile.Plants grow more slowly in acidic soil,and also become easily attacked by diseases.
小題1:The layer of soil that provides necessary nutrients for plant growth is called.
A.1itterB.topsoilC.humusD.subsoil
小題2:According to the text.which of the following is NOT true?
A.Soil forms from weathered rock on the earth surface.
B.The deeper layer of soil is darker in colour than t}le surface soil.
C.Air pollution is partially responsible for acid soil.
D.Groundwater tends to carry away nutrients for plant growth.
小題3:We can infer from the passage that the water table lies      .
A.between the topsoil layer and the subsoil layer
B.in the subsoil layer above bedrock
C.between the subsoil layer and bedrock
D.in the bedrock layer beneath the subsoil
小題4:The underlined word “dissolve” is used to express the idea that organic matter and minerals from soil are         .
A.rushed away into the river
B.cleaned and purified by water
C.destroyed and carried away by water
D.mixed with water and become part of it

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

In the atmosphere, carbon dioxide acts rather like a one-way mirror or the glass in the roof of a greenhouse which allows the sun's rays to enter but prevents the heat from escaping.
   According to a weather expert' s prediction, the atmosphere will be 3℃ warmer in the year 2050 than it is today, if man continues to burn fuels at the present rate. If this warming up took place, the ice caps in the poles would begin to melt, thus raising sea level several metres and severely flooding coastal cities. Also, the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere (北半球), possibly resulting in an alteration of the earth's chief food growing zones.
    In the past, concern about a man-made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet. But the weather experts are now paying more attention to West Antarctic, which may be affected by only a few degrees of warming, in other words, by a warming on the scale that will possibly take place in the next fifty years from the burning of fuels.
    Satellite pictures show that large areas of Antarctic ice are already disappearing. The evidence available suggests that a warming has taken place. This fits the theory that carbon dioxide warms the earth.
    However, most of the fuel is burnt in the northern hemisphere, where temperatures seem to be falling. Scientists conclude , therefore, that up to now natural influences on the weather have gone beyond those caused by man. The question is: Which natural cause has most effect on the weather?
    One possibility is the variable behavior of the sun. Astronomers at one research station have studied the hot spots and "cold" spots (that is, the relatively less hot spots) on the sun. As the sun rotates (使旋轉(zhuǎn)), every 27. 5 days, it presents hotter or "colder" faces to the earth, and different aspects to different parts of the earth. This seems to have a considerable effect on the distribution of the earth's atmospheric pressure, and consequently on wind circulation. The sun is also changeable over a long term: its heat output goes up and down in cycles, the latest trend being downward.
    Scientists are now finding shared relations between models of solar weather interactions and the actual climate over many thousands of years, including the last Ice Age. The problem is that the models are predicting that the world should be entering a new Ice Age and it is not. One way of solving this theoretical difficulty is to assume a delay of thousands of years while the solar effects overcome the inertia (慣性) of the earth's climate. If this is right, the warming effect of carbon dioxide might thus be serving as a useful opposed balance to the sun's fading heat .
66. It can be concluded that a concentration of carbon dioxide in the atmosphere would_________.
A. mean a warming-up in the Antarctic
B. raise the temperature of the earth' s surface
C. prevent the sun's rays from reaching the earth's surface
D. explain the cause of  great changes in the climate in the northern hemisphere
67.The article was written to explain ___________. 
A. the greenhouse effect
B. the solar effects on the earth
C. the causes affecting weather
D. the models of solar-weather interactions
68. Although the fuel consumption is greater in the northern hemisphere, temperatures there seem to be falling. This is__________.
A. mainly because the levels of carbon dioxide are rising
B. partly due to changes in the output of solar energy
C. possibly because the ice caps in the poles are melting
D. only due to the effect of the inertia of the earth' s climate
69. On the basis of their models, scientists believe the opinion that__________.
A. the climate of the world should be becoming cooler
B. the new Ice Age will be delayed by the greenhouse effect
C. the man-made warming effect helps to increase the solar effects
D. it will take thousands of years for the inertia of the earth's climate to take effect
70. If the assumption about the delay of a new Ice age is correct, ____________.
A. ice would soon cover the northern hemisphere
B. the greenhouse effect could work in favor of the earth
C. the best way to overcome the cooling effect would be to burn more fuels
D. the increased levels of carbon dioxide in the atmosphere could warm up the earth even more quickly

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

For some people, the sight of a mouse can be reason to scream. For other mice, the same sight can be reason to sing.
Mice will probably   21  sing their way to any concert, but researchers in the United States have found   22  that mice do,   23 , sing.
Scientists already knew that mice make ultrasonic(超聲波) sounds—noises that are too high-pitched(高音的) for people to hear   24  special equipment.
To find out whether mice put such sounds together in song-like   25 , the researchers recorded the sounds of 1 mice. Using computer   26 , they were able to separate the sounds into specific types of syllables(音節(jié)), and found the mice produced about 10 syllables per second.
The results showed that nearly all of the mice repeated sequences(順序) of syllables in different patterns. That’s enough to meet the definition of what scientists   27  song. But not all scientists are   28  _ that what the mice are doing is   29  singing. To prove it, the researchers must show that there’s learning involved. And, they need to __  30  why the mice sing.
21. A. almost               B. even                C. never               D. usually
22. A. coincidence        B. evidence           C. guidance          D. instance
23. A. at once               B. by means          C. for example             D. in fact
24. A. during               B. inside               C. through            D. without
25. A. fashions             B. instructions        C. patterns            D. styles
26. A. access                B. printer                    C. screen               D. software
27. A. call                   B. hear                 C. sing                 D. write
28. A. accustomed        B. convinced         C. involved           D. qualified
29. A. actually                     B. obviously         C. simply                    D. unlikely
30. A. figure out          B. get about          C. run across         D. talk over

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

San Francisco,unofficially regarded as one of the homeless capitals of the US,counts nearly 6,500 homeless people, with 4,300 living on the street.

Among the many problems that the homeless face is little or no access to showers.San Francisco only has about 16 to 20 shower stations to accommodate them.But Doniece Sandoval has made it her task to change that.
“Homelessness is something you can’t really miss,”the 51-year-old woman said.She started Lava Mae,a sort of showers on wheels, a new project that aims to turn old city buses into shower stations for the homeless.
“One day I passed a woman in the street and she was very dirty and basically crying,and I heard her say that she would never be clean.But I was wondering what her opportunities were to actually get clean,” Sandoval said.
Sandoval was inspired to start Lava Mae. The project has already been welcomed with open arms in the city.The Transportation Agency has donated one bus for the cause and is willing to donate three more if the project succeeds.Sandoval hopes the first bus will be able to hit the road in May this year.The Public Commission has also agreed to let the buses plug into fire hydrants(消防龍頭)around the city if Lava Mae  pays for the water.
One of Lava Mae’s biggest supporters is Bevan Dufty, the director of Housing Opportunity, Partnerships & Engagement under the mayor of San Francisco.“For people who are unhoused,access to showers is very difficult.Shower buses are something that could potentially be deployed (部署)in response to an emergency,so it is relevant to all San Franciscans," Dufty said.“Doniece has done an incredible job as a citizen who cares about helping the poor.We are very excited to see Lava Mae become real soon.”  
Each bus will have two shower stations and Sandoval expects that by 2015,they’ll be able to provide 2000 showers a week.
小題1:What problem does San Francisco face according to the text?
A.The city has the most homeless people in the USA.
B.There are no shower stations for the homeless in the city.
C.It’s hard for homeless people in the city to take showers.
D.Few citizens in the city care about the homeless.
小題2:What does the underlined word ''them” in Paragraph 2 refer to?
A.City problems.B.Shower stations.C.Old buses.D.The homeless.
小題3:Which of the following best describes Doniece Sandoval?
A.Brave and independent.B.Caring and responsible.
C.Honest and determined.D.Friendly and humorous.
小題4:What can we learn from Dufty’s words?
A.All San Franciscans are excited to use Lava Mae.
B.Emergencies in San Francisco will be prevented by Lava Mae.
C.Dufty thinks highly of Doniece's way of helping the poor.
D.The mayor of San Francisco will support Doniece financially.
小題5:What can be a suitable title for the text?
A.A newly invented way of shower
B.Showers on Wheels for the Homeless
C.The health problem of the homeless
D.Lave Mae-a new name for old city buses

查看答案和解析>>

同步練習(xí)冊答案