We have known for a long time that flowers of different plants open and close at

题型：不详难度：来源：

We have known for a long time that flowers of different plants open and close at different times of day. This is so 1 that there seems to be no need to ask the reason for it. Yet no one 2 understands why flowers open and close like this at particular times. The process is not as 3 as we might think, as recent experiments have shown. In one study, flowers were kept in constant 4 . We might expect that the flowers, without any information about the time of day, did not open as they 5 do. As a matter of fact, they 6 to open at their usual time. This suggests that they have some mysterious(神秘的) way of k

nowing the    7  . Their sense of time does not    8   information from the outside world; it is, so to speak, inside them, a kind of “inner clock”.
This    9   may not seem to be very important. However, it was later found that not just plants but also    10  , including man, have this “inner clock” which    11   the working of their bodies and influences their activities. Men, then, are also influenced by this mysterious    12  . Whether we wish it or not, it affects such things in our life as our need for sleep, our need for food.
In the past, this did not really    13   because people lived in natural condition. In

the 14 world, things are different; now there are spacemen, airplane pilots and, in ordinary life, a lot of people who have to work at night. It would be very 15 , then, to know more about the “inner clock”. Such things as flowers might help us understand more about ourselves.

小题1:

A．familiar

B．strange

C．similar

D．special

小题2:

A．partly

B．personally

C．really

D．willingly

小题3:

A．complex

B．simple

C．mature

D．meaningful

小题4:

A．quietness

B．darkness

C．loneliness

D．sadness

小题5:

A．finally

B．completely

C．p

hysically

D．normally

小题6:

A．refused

B．decided

C．continued

D．failed

小题7:

A．time

B．secret

C．process

D．study

小题8:

A．deal with

B．add to

C．give away

D．depend on

小题9:

A．discovery

B．activity

C．invention

D．method

小题10:

A．beasts

B．animals

C．strangers

D．humans

小题11:

A．controls

B．studies

C．measures

D．destroys

小题12:

A．world

B．flower

C．power

D．experiment

小题13:

A．happen

B．exist

C．matter

D．work

小题14:

A．ancient

B．modern

C．wonderful

D．peaceful

小题15:

A．hard

B．expensive

C．convenient

D．important

答案

小题1:A
小题1:C
小题1:B
小题1:B
小题1:D
小题1:C
小题1:A
小题1:D
小题1:A
小题1:B
小题1:A
小题1:C
小题1:C
小题1:B
小题1:D

解析

略

举一反三

Against the supposition（假设）that forest fires in Alaska, Canada and Siberia warm the climate, scientists have discovered that cooling may occur in areas where burnt trees allow more snow to mirror more sunlight into space.
This finding suggests that taking steps to prevent northern forest to limit the release of greenhouse gases may warm the climate in northern regions. Usually large fires destroyed forests in these areas over the past decade. Scientists predict that with climate warming, fires may occur more frequently over next several centuries as a result of a longer fire season. Sunlight taken in by the earth tends to cause warming, while heat mirrored back into space tends to cause cooling.
This is the first study to analyze all aspects of how northern fires influence climate. Earlier studies by other scientists have suggested that fire in northern regions speed up climate warming because greenhouse gases from burning trees and plants are released into the atmosphere and thus trap heat.
Scientists found that right after the fire, large amounts of greenhouse gases entered the atmosphere and caused warming. Ozone（臭氧）levels increased, and ash from the fire fell on far-off sea ice, darkening the surface and causing more radiation from the sun to be taken in. The following spring, however, the land within the area of the fire was brighter than before the fire, because fewer trees covered the ground. Snow on the ground mirrored more sunlight back into space, leading to cooling.
“We need to find out all possible ways to reduce the growth of greenhouse gases in the atmosphere.” Scientists tracked the change in amount of radiation entering and leaving the climate system as a result of the fire, and found a measurement closely related to the global air temperature. Typically, fire in northern regions occurs in the same area every 80 to 150 years. Scientists, however, found that when fire occurs more frequently, more radiation is lost from the earth and cooling results. Specifically, they determined when fire returns 20 years earlier than predicated, 0.5 watts per square meter of area burned are soaked up by the earth from greenhouse gases, but 0.9 watts per square meter will be sent back into space. The net effect is cooling. Watts are used to measure the rate at which energy is gained or lost from the earth.
小题1:According to the new findings, taking steps to prevent northern forest fires may _______.

A．result in a warming climate

B．cause the forest fires to occur more frequently

C．lead to a longer fire season

D．protect the forests and the environment there

小题2: The following are all the immediate effects after a forest fire EXCEPT _________.

A．large amounts of greenhouse gases enter the atmosphere

B．the levels of ozone which is a type of oxygen increase

C．snow on the ground mirrors more sunlight back into space

D．ashes from the fire fall on the ice surface and take in more radiation from the sun

小题3:Earlier studies about northern forest fires _________.

A．analyze all aspects of how northern fires influence climate

B．indicate that forest fires will pollute the atmosphere

C．suggest that people should take measures to protect environment

D．suggest that the fires will speed up climate warming

小题4:The underlined part “soaked up” in the last paragraph most probably means ________.

A．released

B．absorbed

C．created

D．distributed

小题5:From the passage we can draw a conclusion that forest fires in Alaska, Canada and Siberia may __________.

A．warm the climate as the supposition goes

B．allow more snow to reflect more sunlight into space and thus cool the climate

C．destroy large areas of forests and pollute the far-off sea ice

D．help to gain more energy rather than release more energy

题型：不详难度：| 查看答案

Attitude is one of the most important factors in determining success for all people．Successful people have one thing in common—an expectant （期待的） attitude of success．Most people begin each morning in neutral and react to events of the day．You can be one of the successful people in life by starting each day with a positive attitude, a gratitude for the opportunities you have, and an expectancy （期待） of the best for yourself．
People tend to live up to expectations．We get out of life just about what we put into it．Our environment becomes a mirror of our spirit, our attitude, and expectations．If we set a great goal, we get great results．If we have a fair goal, we accomplish fair results, and if we have a poor goal, we accomplish poor results．The world will give you back what you expect, so expect the very best．Don"t be defensive or doubtful．Nothing changes unless you do．Before you can do something, you"ve got to be something．Know that you have worth and value．Show that to the world．

Treat everyone you come in contact with as the most important person in life．It will build self-esteem （自尊心）．Smile! You"ll be rewarded with a returned smile．Don"t react to others rudely．Forgive everyone who ever hurt you．Then, forgive yourself．Keep yourself healthy．Exercise．Eat a proper diet．Display an attitude of confidence．
Develop these good habits and your expectancy will be rewarded by successes．This attitude will put you into that group of people who are truly successful, because you will know and understand how an expectant attitude enhances （提高） every aspect of your life．
小题1:According to the author, we are likely to achieve success if we____．

A．take a positive attitude

B．hold on to our dreams

C．have a good opportunity

D．show gratitude every day

小题2:We learn from Paragraph 2 that____．

A．success mainly depends on your efforts

B．our environment reflects what we think

C．the greater our goal, the better results we will get

D．it is our determination that decides our future

小题3:Paragraph 3 tells us that____．

A．building self-esteem is important

B．we should treat everyone else fairly

C．if treated kindly, others are friendly

D．it makes good sense to forgive others

小题4:The author"s purpose of writing the text is to____．

A．share his view point about life

B．offer advice on confidence building

C．suggest some ways to acquire success

D．stress the importance of positive attitude

题型：不详难度：| 查看答案

Scientists are not sure how the brain follows the tracks of time．One theory holds that it has a group of cells specialized to record the intervals （间隔）of time, while another theory holds that some neural processes （神经突）act as an inside clock．
Whichever theory it may be, studies find, the cells have a poor grasp of longer interval．Time does seem to slow during an empty afternoon and race when the brain focuses on challenging work．Stimulants （兴奋剂）, including caffeine, tend to make people feel as if．time is passing faster; complex jobs, like doing taxes, can seem to drag on longer than they actually do．And emotional events — a breakup, a promotion, a transformative trip abroad —tend to be sensed as more recent than they actually are, by months or even years．In short, some psychologists say, the findings support the philosopher Martin Heidegger" s observation that time "persists merely as a consequence of the events taking place in it．"
Now researchers are finding that the opposite thing may also be true: if very few events come to mind, then the sense of time does not persist; the brain shortens the interval that has passed．
In one classic experiment, a French explorer named Michel Siffre lived in a cave for two months, cut off from the rhythms of night and day and man-made clocks．He appeared then, convinced that he had been isolated for only 25 days．Left to its own devices, the brain tends to shorten time．
In earlier work, researchers found that a similar case at work in people’s judgment of intervals that last only moments．Relatively infrequent stimuli, like flashes or tones, tend to increase the speed of the brain" s internal pacemaker．
On an obvious level, these kinds of findings offer an explanation for why other people" s children seem to grow up so much faster than one"s own．Involved parents are all too well aware of first step in their own children; however, seeing a cousin"s child once every few years, without bothering memories, shortens the time．
小题1:What can we infer from the first paragraph?

A．Scientists have agreed about how the brain records time．

B．Scientists all think that some cells record the intervals of time．

C．Scientists haven"t agreed on how the brain records time．

D．Scientists all hold the theory that neural processes are an inside clock．

小题2:According．to Paragraph 3, if we have few things to do, the brain will____．

A．make the intervals of time long

B．make the intervals of time short

C．keep a state of rest

D．stop working

小题3:Which of the following is TRUE according to the passage?

A．Michel Siffre didn" t think he had stayed in the cave for as long as two months．

B．Parents tend to think their own children grow faster than others．

C．Michel Diffre actually stayed in

the cave for twenty-five days．

D．Children usually bring bad memories to their parents．

小题4:In which column of a newspaper can we find this passage?

A．Social news	B．Community activities
C．Science	D．Children s life

题型：不详难度：| 查看答案

Looking back on China"s road to outer space, people can easily find it has not been very smooth．In the past years, Chinese people have made hard and determined efforts to realize the dream their ancestors had for thousands of years．
After China"s first satellite into the Earth"s orbit in 1970 came four flights of unmanned Shenzhou spaceflight from 1999 to 2002．The country carried out its first one-piloted spaceflight in October．2003, making China the third country in the world to have independent human spaceflight ability after the Soviet Union and the United States．Then came another breakthrough on October 12, 2005．

when Shenzhou 6, China"s second human spaceflight, was launched, with a crew of two astronauts．What"s more, the landmark （里程碑）spacewalk done by Zhai Zhigang, one of the three boarding Shenzhou 7, launched on Sept．25, 2008, leads the country further in its space exploration．
Meanwhile, China"s moon exploration project, started in 2004, has also been progressing satisfactorily. Fifty years after the Soviet Union launched Sputnik, the world"s first man-made satellite, China"s first circumlunar（绕月的）satellite Chang’e 1 took off on Oct．24, 2007, which became the third landmark in China"s space achievements after the above-mentioned manned flights．Change 1 was expected to fulfill four scientific goals, one of which was to explore mineral elements on the moon, especially those not existent on the Earth. It"s said that the lunar regolith （月壤） is abundant in helium-3, a clean fuel that may support the Earth"s energy demands for more than a century．Nearly 3 years later, Oct．1, 2010 witnessed the launching of Chang"e 2, China"s 2nd unmanned lunar probe, marking another step forward in moon exploration．This time the aim is to test the key techniques of Chang"e 3 and Chang"e 4, as a preparation for a soft lunar landing in the future．
With great expectations, people all over the world are looking forward to China"s greater space achievements．
小题1:According to the text, which of the following is TRUE?

A．China sent its first satellite into the Moon"s orbit in 1970．

B．China is the third country in Asia to make human spaceflight．

C．By now, 5 astronauts have made successful spaceflight by Shenzhou spaceship．

D．The launching of Chang"e 1 became the third landmark in China"s space achievements．

小题2:Paragraph 2 mainly deals with the information about China"s_ __.

A．landmark spacewalk	B．manned Shenzhou spaceflight
C．first circumlunar satellite	D．unmanned Shenzhou spaceflight

小题3:We can infer from the text that____．

A．China"s road to outer space has been very smooth for a long time

B．the lunar regolith is believed to be poor in a clean fuel called helium-3

C．China"s scientists are researching into techniques for soft lunar landing

D．China"s lunar exploration project was started in 2004 and completed in 2007

小题4:What can be the best title for the text?

A．Ancient Chinese"s Dream	B．The World"s Great Expectations
C．China"s Moon Exploration	D．China s Major Space Achievements

小题5:The author"s attitude towards China"s space exploration is_ __.

A．negative	B．positive
C．discouraged	D．uninterested

题型：不详难度：| 查看答案

At EF – English First, we aim to provide the best English language training program and teachers are at the heart of our leaning system. EF has over 100 schools in 60 cities throughout China, and it is well – known in China. EF is looking for native English speakers with teaching experience to help Chinese people learn English well. Our English teaching principles focus on practice, confidence building and practical application of the language. While teaching English with EF

, you will continue to develop as a teaching professional and experience life in this great nation.
As soon as you walk into an EF school, you will understand why creating a welcoming learning environment is important to how we teach English. Our schools have well – equipped, modern classrooms, computer labs, and teaching preparation arcas. Our teachers receive a complete modern teaching program, popular classroom – based training to prepare them to teach to our high standards.
A professional package for an international teaching professional.
Our package includes:
◆High salary ◆Flight payment
◆Health insurance ◆Living place & food

help
◆Generous paid vacation + national holidays ◆Working visa (签证)
◆Help upon arrival ◆Teacher training & development
◆Chances of being raised to higher ranks
Set up in 1965 with they duty to “break down difficulties in language, culture and geography”, EF has helped over 15 million stud tens, learn a new language and travel in foreign countries. EF was the Official Language Training Services Supplier of the Beijing 2008 Olympic Games and one of the largest employers of English teachers in China

. EF works in one of today’s fastest growing industries – education – and promises teachers a chance to make a real difference.
小题1:What does EF stand for?

A．English Farm.

B．English First.

C．English Fit.

D．English Fact.

小题2:Where will the teachers at EF schools work?

A．In 60 cities in China.	B．In the middle of China.
C．In 100 cities in China.	D．In the countryside of China.

小题3:What kind of person can probably the chosen as a teacher by EF?

A．A native Frenchman with working visa.

B．A native Englishman who lived in China.

C．A native American who wants to help others.

D．A native English speaker with teaching experience.

小题4:The professional package includes the following EXCEPT .

A．medical insurance	B．high salary
C．unemployment insurance	D．help when arriving

小题5:What is the main idea of the last para

graph?[

A．It is about EF – English First.

B．It is about traveling in foreign countries.

C．It is about the Beijing 2008 Olympic Games.

D．It is about difficulties in language, culture and geography.

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