閱讀理解
     Spring, summer, autumn, and winter bring changes in the weather, plant and animal life, and the length
of days and night. Seasonal changes such as these are due to three factors, the tilt (傾斜) of Earth's axis (軸) to one side; the rotation, or turn, of Earth on its axis every 24 hours; and the revolution of Earth
around the sun once every year. Since Earth remains titled in the same direction during its revolution of
the sun, our distance from the sun changes, causing us to experience the changing seasons.
     In summer the Northern Hemisphere (半球), where we live, points toward the sun, bringing us closer
to it and its more direct and powerful rays. Six months later, when Earth is halfway through its revolution
around the sun, the Northern Hemisphere is tilted away from the sun, placing us farther from it and
exposing us to the weak rays of winter. The seasons in one hemisphere are opposite those in the other
hemisphere. However, one area of the Earth - the equator (赤道) - is always closest to the sun, so
equatorial regions experience hot weather throughout the year. In contrast, the polar regions, always
farthest from the sun, experience continuous frigid weather.
     In the Northern Hemisphere, we observe a gradual alteration in the angle of the sun during the year.
About June 21, on the summer solstice, or the first day of summer, the midday sun reaches its highest
point in the sky and produces the year's maximum daylight hours. About September 22, on the autumn
equinox, the midday sun is lower in the sky. Because Earth's axis is titled neither toward nor away from
the sun, equal periods of daylight and darkness result. About December 21, on the winter solstice, or the
first day of winter, the midday sun is at its lowest point in the sky. This brings the year's fewest daylight
hours. About March 21, on the vernal equinox, or the first day of spring, the midday sun is higher in the
sky. Daytime and nighttime hours are again equal.

1. This passage is mainly concerned with ____________.

A. how Earth rotates on its axis
B. why the various seasons occur
C. why each season is three months long
D. which parts of Earth are coldest

2. What happens on the summer solstice? 

A. The midday sun reaches its lowest point in the sky.
B. Earth's axis is tilted neither toward nor away from the sun.
C. There are equal periods of daylight and darkness.
D. The midday sun produces the greatest number of daylight hours during the year.

3. In the last paragraph, the writer presents facts about equinoxes and solstices to explain _________.

  A. why it is hot at the equator
  B. the various lengths of day and night
  C. why the midday sun is directly overhead
  D. the date of the autumn equinox

4. In this passage, the underlined word "revolution" in the first paragraph means ____________.

A. a great change
B. an uprising
C. standing still
D. circling
練習冊系列答案
相關(guān)習題

科目:高中英語 來源:0127 模擬題 題型:閱讀理解

閱讀理解。
     Jiuquan, Gansu Sept. 25 (Xinhua)-China launched its third manned spacecraft on Thursday with three
astronauts on board to attempt the country's first-ever space walk.
     The spaceship Shenzhou-7 blasted off on a Long March II-F carrier rocket from the JiuQuan Satellite
Launch Center in the northwestern Gansu Province at 9:10 pm. after a breathtaking countdown to another
milestone on China's space journey. Onboard pilots Zhai Zhigang, Liu Boming and Jing Haipeng are expected
to orbit the earth for three days, when one of them will float out of the cabin about 343 kilometers above the
earth.   
     When they make it, China will become the third country in the world who is able to conduct
extra-vehicular activity (EVA) in space following the former Soviet Union and the United States.   
     President Hu Jintao watched the historic moment at the launch center, joined by Chinese experts and other
work staff.   
     Two taikonauts would enter the orbital module, where one would put on domestically-made spacesuit
Feitian and leave the module to take back test samples loaded outside, said Zhou Jianping, chief designer of
the country's manned space project.
     The other would wear a Russian Orlan suit and stay in the depressurized cabin for support, said Zhou.
"We wish we could fly freely in space just like Feitian on the ancient Buddhist murals, so we gave this name
to the homemade spacesuit," said Zhou. Feitian, which literally means flying in the sky, is the name of a
legendary Buddhist goddess.
     Other tasks of the Shenzhou-7 crew include the release of a small monitoring satellite and a trial of the
data relay of the satellite Tianlian-I.   
     The taikonauts, all 42 years old, are scheduled to land in the central region of north China's Inner Mongolia
Autonomous Region in a re-entry module after their mission is completed.
1. The underlined word in the second paragraph means _____.
A. the action of counting seconds forwards from zero
B. the action of counting seconds backwards to zero
C. the period of time just before something important happens
D. something that can be counted
2. They call the spacesuit Feitian because _____.
A. The spacesuit can help them to fly freely in the sky
B. Feitian is the name of a legendary Buddhist goddess
C. The spacesuit is made in Russia
D. They wish they could fly freely in space just like Feitian
3. The main task of the Shenzhou-7 crew is to _____.
A. float out of the cabin about 343 kilometers above the earth
B. conduct extra-vehicular activity in space
C. release a small monitoring satellite
D. take back test samples loaded outside
4. According to the text, we can know that_____.
A. China has launched two manned spacecraft with astronauts on board
B. The three pilots are expected to orbit the earth for 3 days
C. The former Soviet Union and the United States can not conduct extra- vehicular activity in space
D. Two taikonauts would leave the module to take back test samples

查看答案和解析>>

科目:高中英語 來源:0111 期中題 題型:閱讀理解

閱讀理解。
     BEIJING, China (CNN)-Chinese workers and army soldiers were racing to sweep snow-covered highways
and railway routes for millions of travelers trapped by cold weather. 
     More than 67 million people have been affected by the weather and economic losses are expected to reach
as much as $3 billion, Chinese officials say. 
     In the past week, the snowstorms have hit the provinces in central, eastern and southern China-places that
used to have mild winters. 
     "We've never seen such a cold weather lasting for such a long time," said Tang Shan, a man in his 70s
Changsha, Hunan Province. "The last time we had one here was over 50 years ago, and not this bad." 
     The snow has blocked roads, railways and airports, leaving tens of millions of travelers stranded (滯留),
officials say. Many of them are going home ahead of the traditional Lunar New Year, also known as the Spring
Festival. 
     The Lunar New Year travel is China's busiest travel period of the year.But the snow is changing travel plans.
Railway and highway routes have been brought to a pause,a situation in which all activity or movement has
stopped and several regional airports have been closed. 
     In the southern city of Guangzhou, as many as 500,000 train passengers were stranded in the past few
days when a power failure in neighboring Hunan seriously damaged the regular train services, local officials
said. About 100,000 passengers crowded the square in front of the train station, while others found shelter
in schools and other public buildings while waiting for their trains. 
     More terrible weather is expected. China's weather office on Monday issued a warning of more severe (惡
劣的) snowstorms in the coming days. If so, the number of stranded travelers will surely increase.
1. What would be the best title for the passage?
[     ]
A. Travelers in China
B. Snowstorms Cause Economic Losses
C. Dealing with Terrible Weather
D. Snowstorms Hit Parts of China
2. The word "trapped" underlined in Paragraph 1 can be replaced by "_____".
[     ]
A. beaten
B. disturbed
C. blocked
D. destroyed
3. We can know from the passage that .
[     ]
A. the coming snowstorms will leave more people stranded
B. there will be more snowstorms next year
C. snowstorms usually cause a power failure
D. more people are going home for Lunar New Year this year
4. The passage is probably taken from a _____.
[     ]
A. guidebook
B. news report
C. science magazine
D. textbook

查看答案和解析>>

科目:高中英語 來源:湖南省月考題 題型:閱讀理解

閱讀理解
                                                                
                                                              The Scientific Method
     Did you ever wonder why the water level in a glass doesn't change when the ice in the glass melts
(融化)? To find out why, you can use the scientific method. Used by scientists in various situations, the
scientific method is also a clear and logical way to solve many real-world problems, as the procedure
below indicates.
Steps in the Scientific Method Examples
State the problem or question. "Why doesn't the water level in a glass rise when ice melts?"
Collect information about the problem,
using  your own observations and
research.
You already know that ice is frozen water. From your research,
you learn that water and ice are made of water molecules (分子).
"Form a hypothesis, or a best guess
based on the information."
The molecules in water appear to be closer together
than they are in ice.
Test the hypothesis by doing an
experiment.
Fill four glasses with ice. Then pour water over the ice and fill
each glass to the rim. As the ice melts, you observe that the water
does not spill over the top of the glasses. Each time you repeat the
experiment, you get the same results.
Draw a conclusion based on your results. Molecules are closer together in water than they are in ice.
  
1. We all know the fact that        .
A. the water level in a glass doesn't change when the ice in the glass melts
B. the water level in a glass changes when the ice in the glass melts
C. the water level in a glass rises when the ice in the glass melts
D. the water level in a glass goes down when the ice in the glass melts
2. Which of the following is another good title for this passage?
A. Research and Conclusion            
B. Observation and Experiment
C. Follow the Steps to Find Out Why      
D. Mix Water with Ice and Get the Result
3. A hypothesis is _______.
A. a guess about the cause of something    
B. the first step in the scientific method
C. a conclusion about water molecules    
D. an experiment on ice and water
4. This passage suggests that _______.
A. repeated experiments lead to the right result  
B. research should be done in various situations
C. your hypothesis can prove your experiment results
D. a logical method is needed when solving problems
5. The chart in the passage is useful because it _______.
A. shows a diagram of how ice melts    
B. shows steps and examples
C. compares water with ice            
D. explains cause and effect

查看答案和解析>>

科目:高中英語 來源:河北省期末題 題型:閱讀理解

閱讀理解
     Facial expressions carry meaning that is determined by situations and relationships. For example, in
American culture the smile is in general an expression of pleasure. Yet it also has other uses. A woman’s
smile at a police officer does not carry the same meaning as the smile she gives to a young child. A smile
may show love or politeness. It can also hide true feelings. It often causes confusion (困惑) across cultures. For example, many people in Russia consider smiling at strangers in public to be unusual and even improper. Yet many Americans smile freely at strangers in public places (although this is less common in big
cities). Some Russians believe that Americans smile in the wrong places; some Americans believe that Russians don’t smile enough. In Southeast Asian cultures, a smile is frequently used to cover painful feelings.
Vietnamese people may tell a sad story but end the story with a smile.    
     Our faces show emotions (情感), but we should not attempt to “read” people from another culture as we would “read” someone from our own culture. The fact that members of one culture do not express their emotions as openly as do members of another does not mean that they do not experience emotions.
Rather, there are cultural differences in the amount of facial expressiveness permitted. For example, in
"public and in formal situations many Japanese do not show their emotions as freely as Americans do.
When with friends, Japanese and Americans seem to show their emotions similarly.   
     It is difficult to generalize about Americans and facial expressiveness because of personal and cultural
backgrounds in the United States. People from certain cultural backgrounds in the United States seem to
be more facially expressive than others. The key is to try not to judge people whose ways of showing
emotion are different. If we judge according to our own cultural habits, we may make the mistake of
“reading” the other person incorrectly.
1. What does the smile usually mean in the U.S.?
A. Love
B. Politeness
C. Joy
D. Thankfulness
2. The author mentions the smile of the Vietnamese to prove that a smile can ________.
A. show friendliness to strangers
B. be used to hide true feelings  
C. be used in the wrong places        
D. show personal habits
3.What should we do before attempting to "read" people?
A. Learn about their relations with others
B. Understand their cultural backgrounds
C. Find out about their past experience
D. Figure out what they will do next
4. What would be the best title for the test?
A. Cultural Differences
B. Smiles and Relationships
C. Facial Expressiveness
D. Habits and Emotions

查看答案和解析>>

科目:高中英語 來源:同步題 題型:閱讀理解

閱讀理解。

     Like distance runners on a measured course, all of us will move through time in a roughly predictable
pattern.
     In the first stage of our lives, we develop and grow, reaching toward the top of physical
vitality(energy). 
     After we grow up,however, the body begins a process of gradually wearing out.
     A new awareness of physical fitness may help lengthen our years of health and vitality, yet nothing we  
do will work to stop the unavoidable force of aging.
     Most of the changes of aging take place deep inside the body. The lungs become less able to take in
oxygen. Powerful muscles gradually lose their strength. The heart loses power and pumps less blood.Bones grow easier to break.
     Finally, we meet a stress,a stress that is greater than our physical resistance. Often it is only a minor  
accident or chance infection(a disease eaused by virus), but this time,it brings life to an end.
     In 1932, a classic experiment nearly doubled the lifetime of rats, simply by cutting back the
calories(unit for measuring the energy value of food)in their diet.The reason for the effect was then
unknown.
     Today, at the university of California at Berkley, Dr.Paul Seagle has also greatly lengthened the
normal lifetime of rats. The result was achieved through a special protein(蛋白質(zhì))limited diet, which
had a great effect on the chemistry of the brain. Seagle showed that within the brain, specific chemicals
control many of the signals that influence aging. By changing that chemical balance, the clock of aging
can be reset.
     For the first time, the mystery(something that is difficult to understand or to explain)of why our age
is being seriously challenged. Scientists in many fields are now making striking and farreaching
discoveries.
     An average lifetime lasts 75 years, yet in each of us lies a potential for a longer life. If we could keep 
the vitality and resistance to disease that we have at age twenty, we would live for 80 years.

1. What does the underlined word"it" refer to?

A. Physical vitality.        
B. Stress.
C. Aging.                
D. Physical resistance.

2. The author believes the following EXCEPT that ________.

A. human's life pattern is predictable
B. physical fitness can't stop the force of aging
C. human's lifetime will last longer than 75 years
D. all of the changes of aging take place deep inside the body

3. How did Dr.Paul Seagle lengthen the lifetime of rats in his experiment?
A. By limiting the protein in their diet.
B. By cutting the calories in their diet.
C. By resetting their clock of aging.
D. By keeping their physical fitness.

4. What is probably the best title for the article?

A. Two Great Experiments
B. The Mystery of Human Life
C. Ways to Lengthen Human Life
D. The Breakthrough in the Study of Aging

查看答案和解析>>

科目:高中英語 來源:云南省期中題 題型:閱讀理解

閱讀理解。
     根據(jù)短文內(nèi)容,從短文后的選項中選出能填入空白處的最佳選項。選項中有兩項
為多余選項。
     Six Ways to Improve Reading Comprehension
     Help your child keep what he reads --- a crucial skill, especially as he gets older and needs to
gain important information from textbooks. 
     Let him read aloud.
     This forces him to go slower, which gives him more time to process what he reads.   1  
     Provide the right kinds of books. 
       2   He should recognize at least 90 percent of the words without any help. Stopping to figure
out a word makes it tough for him to focus on the overall meaning of the story. 
       3   To gain meaning from text, your child needs to read quickly and smoothly- a skill known
as fluency. Rereading familiar, simple books gives your child practice at decoding words quickly,
so he'll become more fluent.
     Talk to the teacher.
     If your child is struggling strongly with comprehension, he may need more help with his reading-for
example, building his vocabulary or practicing phonics skills.
     Supplement class reading.
     If his class is studying a particular theme, look for easy-to-read books or magazines on the topic
. Some previous knowledge will help him get better prepared and make his way through tougher
classroom texts.
     Talk about what he's reading.
     This "talking processing" helps him remember and think through the themes of the book.   4  . For
example:
     Before: "What interests you in this book?"
     During: "   5   . Is it turning out the way you thought it would?"
     After: "Can you summarize the book? What did you like about it?"
A. Reread to build fluency.
B. Plus, he's not only seeing the words, he's hearing them, too.
C. What's going on in the book?
D. Do you know all the characters' names in the story?
E. Make sure your child gets lots of practice of reading books that aren't too hard.
F. He should recognize at least 90 percent of the words without any help.
G. Ask questions before, during, and after a reading session.

查看答案和解析>>

科目:高中英語 來源:湖北省同步題 題型:閱讀理解

閱讀理解
     Quickly, the picture comes alive with hyperlinks (超鏈接), offering the names of the buildings, towers
and street features that appear in the photo.The hyperlinks lead to information about the history, services
and context of all the features in the photo.You have just hyperlinked your reality.
     That might be a little unbelievable, but the technology exists and is no fevered imagination.This is not a
cool small machine invented for the next James Bond movie; this is a working technology just developed
by European researchers.It could be coming to a phone near you, and soon.
     This, as the marketing types say, is a game changer.It develops a completely new interface (界面)
that combines webtechnology with the real world.It is big and fresh, but it goes much further and has
much greater influence.
     The development of the system is most outstanding because image recognition technology has long
been pregnant with promise, but seemed to suffer from an unending labour.
     Now MOBVIS has not only developed image recognition; it has also developed more applications for
the technology; and it has adapted it to the world's most popular technology: the mobile phone.
     The MOBVIS system completely rewrites the rules for exploration and interaction with your physical
environment.The system begins with panoramas (一連串景象). These panoramas form the basis of a
city database.It can match buildings, towers, banners and even logos that appear in the panoramas. A
user simply takes a picture of the street feature, MOBVIS compares the user's photograph to the
panoramas and then identifies the buildings from the picture you take and the relevant links are returned.
     Then you simply click on the links, using a touchscreen phone, and the MOBVIS system will provide
information on the history, art, architecture or even the menu, if it is a restaurant, of the building in question.

1. Which is introduced in the passage?

A. A new game software.
B. A popular mobile phone.
C. A cool small machine.
D. An image recognition system.

2. What can we learn about the new technology?

A. It can only be put into use on mobile phones.
B. It is a little unbelievable and just a fevered imagination.
C. It has taken an unending labour to bring the technology into our lives.
D. It will encourage the users to take more pictures of the street features.

3. What is the right order of the operation of MOBVIS?

a. A city database forms in the system.
b. MOBVIS recognizes the picture and links are returned.
c. A user touches the links on the phone screen.
d. A user takes a picture of the street feature.
e. MOBVIS provides information in question.
A. a; e; c; d; b  
B. a; d; b; c; e
C. d; c; e; a; b  
D. c; a; e; b; d

4. From the passage, we can infer that________.

A. MOBVIS has already been widely used all over the world
B. the writer is trying to promote the sales of the MOBVIS system
C. this new technology will soon be very popular in our lives
D. the sales of mobile phones will decrease as MOBVIS comes on market

查看答案和解析>>

科目:高中英語 來源:江西省期中題 題型:閱讀理解

閱讀理解。
     With the development of science and technology, most of us will comment:"Life is speeding up.
Everyone is getting unwell."
     This may sound like something someone would say today. But in fact, an unknown citizen who
lived in Rome in 53 AD wrote it.
     We all love new inventions. They are exciting, amazing and can even change our lives. But have
all these developments really improve the quality of our lives?
     Picture this, you're rushing to finish your homework on the computer. Your mobile phone rings,
a QQ message from your friend appears on the screen, and the noise from the television is getting
louder and louder. Suddenly the computer goes blank and you lose all your work. Now you have
to stay up all night to get it done. How calm and happy do you feel?
     Inventions have speeded up our lives so much that they often leave us feeling stressed and tired.
Why do you think people who live far away from noisy cities, who have no telephones, no cars,
even no electricity often seem to be happier? Perhaps because they lead simpler lives.
     One family in the UK went "back in time" to see what life was like without all the inventions we
have today. The grandparents, with their daughter, and grandsons Benjamin, 10, and Thomas, 7,
spent nine weeks in a 1940s house. They had no washing machine, microwave, computer or mobile
phones.
     The grandmother, Lynn said, "It was hard physically, but not mentally." She believed life was less
materialistic. "The more things you have the more difficult life becomes." She said. The boys said they
found less to fight over, such as their computer. Benjamin also noticed that his grandmother had
changed from being a "trendy, beer- drinking granny to one who cooked things".
     Here are some simple ways to beat the stress often caused by our inventions!
●Don't be available all the time.Turn off your mobile phone at certain times of the day.Don't
check your emails every day.
●Make sure you spend some time talking to your family.Set aside one evening a week when you
don't turn on the television.Play cards and chat instead.
●Get a low-tech hobby.Every day,do something in the old-fashioned way,such as walking to have
a face-to-face meeting instead of using the email or telephone.
●Don't worry too much about life-laugh more!
1. The passage is mainly about          .
A.the important roles technology plays in our everyday life
B.improvements of our life with technology
C.problems with technology
D.major changes are likely to happen to technology
2. The writer uses the quote at the beginning of the story to        .
A.point out that you experience some big problems and they may be the same
B.tell us what life was like long time ago
C.make us wonder what causes such a thing to happen
D.share a truth about life
3. Why did the family choose to spend some time in a 1940s house?
A.Because they were curious about how people lived without modern inventions.
B.Because they liked to live simple lives.
C.Because they were troubled by modern inventions.
D.Because living in a different time would be a lot of fun for them.
4. What does the underlined word "available" in the first suggestion offered by the writer mean?
A.Busy on line.
B.Free.
C.Be able to move.
D.Be found by others.
5. The writer may support that ______
A. you ring back your boss immediately when you get home and see his message to you.
B. you take your iphone and taptop and power them on all the time while traveling.
C. you find fun in some exercise like hiking and jogging instead of chatting on the Internet.
D. you check your mail account as frequently as you can.

查看答案和解析>>

同步練習冊答案