Global warming happens when greenhouse gases trap heat and light from the sun in the earth’s atmosphere, which increases the temperature. This is like when heat is trapped in a car. On a hot day, the car gets hotter when it is out in the parking lot. This is because the heat and light from the sun can get into the car, by going through the windows,but it can’t get back out. This is what the greenhouse effect does to the earth .The heat and light can get through the atmosphere, but it can’t get out As a result,the temperature rises.
Sometimes the temperature can change in a way that helps us. The greenhouse effect makes the earth appropriate for people to live on Without it,the earth would be freezing,or it would be burning hot. It would be freezing at night because we would not get the sun’s heat and light .During the day, especially during the summer, it would be burning because the sun would be up with no atmosphere to filter(過濾)it,so people,plants,and animals would be exposed to all the light and heat.
Although the greenhouse effect makes the earth able to have people living on it,if there gets to be too many gases,the each can get unusually warmer, and many plants,animals.a(chǎn)nd people will die. Plants would die because they would not be able to take the heat .This would cause us to have less food to eat, and it would also limit the food that animals have. With less food for the animals that we need to survive we would even have less food. Gradually, people,plants,and animals would all die of hunger.
People are doing many things to try to stop global warming .One thing is carpooling—driving with someone to a place that you are both going to. Another thing is being more careful about leaving electrical devices turned on. Now, more people are even riding buses or bikes to lower the amount of greenhouse gases in the air .Although adults do many things to help stop global warming, kids call do just as much.
小題1:By the example given in Paragraph l, the author wants to__________.
A.explain how global warming happens
B.show his feeling in a car in hot summer
C.tell us cars are causes of greenhouse gases
D.say that I there are greenhouse gases in every car
小題2:The underlined word ‘it” in Paragraph 2 refers to__________.
A.lightB.greenhouse effectC.temperatureD.heat
小題3:What is the effect of atmosphere?
A.IT only traps the heat of the sun.
B.It does great harm to humans.
C.It makes the earth neither to hot nor too cold.
D.It prevents all the light from the sun shining on the earth.
小題4:What is the main idea of the third paragraph?
A.lf there is greenhouse effect.a(chǎn)ll the plants will die
B.Human beings are likely to disappear from the earth
C.Crops can ′t take in the heat lf there is greenhouse effect
D.Although greenhouse effect is necessary.Too much of it will cause us to die.
小題5:What will the author most probably discuss in the paragraph that follows?
A.What kids can do to help stop global warming.
B.Who should be responsible for the environmental problems.
C.What global warming is doing to the environment.
D.Why cars and buses pollute the air a lot

小題1:A
小題2:B
小題3:C
小題4:D
小題5:A

試題分析:文章大意:文章主要講述溫室效應(yīng)產(chǎn)生的原因以及溫室效應(yīng)對(duì)人類的利和弊。
小題1:細(xì)節(jié)理解題。根據(jù)文章第一段作者給出淺顯易懂的例子,其目的是給讀者解釋全球變暖的原因。故A正確。
小題2:詞義推測(cè)題。根據(jù)文章第二段it的前一句The greenhouse effect makes the earth appropriate for people to live on可知此處的it代指greenhouse。故B正確。
小題3:細(xì)節(jié)理解題。根據(jù)文章第二段Without it,the earth would be freezing,or it would be burning hot.可知大氣使得地球不熱也不冷。故C正確。
小題4:主旨大意題。根據(jù)文章第三段首句Although the greenhouse effect makes the earth able to have people living on it,if there gets to be too many gases,the each can get unusually warmer, and many plants,animals.a(chǎn)nd people will die.可以得出答案。故D正確。
小題5:推理判斷題。根據(jù)文章最后一段的最后一句Although adults do many things to help stop global warming, kids call do just as much.可以推測(cè)出下一段要寫的內(nèi)容。故A正確。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中英語(yǔ) 來源:不詳 題型:閱讀理解

Businesses are witnessing a difficult time,which has in turn produced influence on consumers’ desire to go green.However,shoppers are still laying stress on environmental concerns.
Two thirds of customers say that environmental considerations inform their purchases to the same degree as they did a year ago,while more than a quarter say that they are now even better aware of the environmental effect on what they buy.
This may help to influence how shops store goods on their shelves.And the companies should still make efforts to become more environmentally friendly.Two out of three people think it is important to buy from environmentally responsible companies,with about one in seven saying that they had even decided to take their custom elsewhere if they felt a company’s environmental reputation was not good enough.
Harry Morrison,chief executive(主管)of the Carbon Trust,sympathizes:“I understand this situation where survival is very important now.But from environmental considerations,the clock is ticking—we don’t have much time.In addition,cutting carbon has an immediate effect as costs drop and a medium­term benefit for the brand.”
Larger companies have an extra motivation to look at reducing their carbon footprint,as new rules next year will require businesses to buy carbon allowances to make up for their emissions(排放).Those that have taken early action will have a head start.More than two thirds of consumers are not clear about which companies are environmentally responsible.This suggests that firms that are able to relay clearly their message to the public will be in a pole position to attract shoppers.
The Carbon Trust believes that it can help by informing customers about the good work companies are doing.“When companies are granted(授予) the standard,they can use a logo(標(biāo)識(shí)) in all their marketing which makes it clear that they are working towards cutting emissions,” Mr.Morrison said.                                                  (2010·福建,C)
小題1:What’s the main idea of the passage?
A.Businesses are finding ways to send their message to the shoppers.
B.Companies will soon get information about cutting carbon emissions.
C.Firms are making efforts to encourage customers to keep goods at home.
D.Firms are urged to cut carbon emissions by shoppers’ environmental awareness.
小題2:The underlined word “inform” in Paragraph 2 probably means “________”.
A.a(chǎn)ffectB.changeC.disturbD.reject
小題3:According to Harry Morrison,businesses ________.
A.will benefit from cutting carbon emissions
B.should buy carbon allowances for shoppers
C.a(chǎn)re required to make up for their carbon emissions
D.have encouraged shoppers to take their custom elsewhere
小題4:We can learn from the passage that businesses will________.
A.have a strong desire to reduce costs
B.use the same logo in their marketing
C.gain advantages by taking early action
D.a(chǎn)ttract more shoppers by storing goods

查看答案和解析>>

科目:高中英語(yǔ) 來源:不詳 題型:閱讀理解

Plastic is one of the most important technological discoveries of the 20th century.However,it may soon be replaced.The new development—liquid wood—can replace plastics in all branches of modern industries.
Plastic as a material enjoys the biggest demand in the modern world,but it does have a number of drawbacks.First and foremost,plastic isn’t recyclable.Secondly,it contains toxins (毒物) helping develop cancerous diseases.Finally,it’s made of oil and oil reserves aren’t endless.
The  liquid wood technology is likely to replace plastic and provide mankind with new materials for many years ahead.Norbert Eisenfreich,a senior researcher at  the Faunhofer Institute for Chemical Technology (ICT) in Germany,said that arboform,the new material,is made of lignin (木質(zhì)素),which can be obtained from soft tissues of wood.Once mixed with several other materials,it turns into solid and non­toxic alternative for plastics.
ICT team leader Emilia Regina Inone­Kauffmann said the wood­working industry separates wood into three basic components,including lignin.Lignin isn’t used for the production of paper.Specialists of ICT mixed lignin with several natural materials and thus invented the material which could be melted and molded (鑄型).
When solid,arboform looks like plastic and possesses the qualities of polished wood.It can be used for the production of any items.Arboform is already used for the production of car parts which require extra strength.In addition,liquid wood can be recycled repeatedly.The material preserved all of its qualities even if it’s reprocessed ten times.
However,the new invention doesn’t enjoy an extensive use due to the high content of sulphur (硫) in it.German researchers are sure to reduce the amount of sulphur by 90 percent very soon to make arboform usable for home needs.
小題1:According to the passage,plastic________.
A.plays a big role in the modern world
B.helps to protect our environment in some way
C.has been replaced by the newly discovered material
D.helps us to reduce the use of petrol
小題2:What’s the advantage of arboform over plastics?
A.It is easily made from natural oil.
B.It is more widely used in household.
C.It is recyclable and friendly to the environment.
D.It contains no poisonous materials.
小題3:It can be concluded that German researchers will focus their future work firstly on________.
A.the material’s extensive use
B.the content of sulphur in arboform
C.the production cost of arboform
D.the qualities of liquid wood
小題4:The main purpose of the passage is to________.
A.a(chǎn)dvertise the new material—arboform
B.introduce liquid wood which will replace plastic
C.a(chǎn)dvertise new products made of arboform
D.show readers how to produce arboform

查看答案和解析>>

科目:高中英語(yǔ) 來源:不詳 題型:閱讀理解

Researchers in the psychology department at the University of California at Los Angeles (UCLA) have discovered a major difference in the way men and women respond to stress. This difference may explain why men are more likely to suffer from stress-related disorders.
Until now, psychological research has maintained that both men and women have the same "fight-or-flight" reaction to stress. In other words, individuals either react with aggressive behavior, such as verbal or physical conflict ("fight"), or they react by withdrawing from the stressful situation ("flight"). However, the UCLA research team found that men and women have quite different biological and behavioral responses to stress. While men often react to stress in the fight-or-flight response, women often have another kind of reaction which could be called "tend and befriend." That is, they often react to stressful conditions by protecting and nurturing their young ("tend"), and by looking for social contact and support from others - especially other females ('befriend").
Scientists have long known that in the fight-or- flight reaction to stress, an important role is played by certain hormones(激素) released by the body. The UCLA research team suggests that the female tend-or-befriend response is also based on a hormone. This hormone, called oxytocin, has been studied in the context of childbirth, but now it is being studied for its role in the response of both men and women to stress. The principal investigator, Dr. Shelley E. Taylor, explained that "animals and people with high levels of oxytocin are calmer, more relaxed, more  social, and less anxious." While men also secrete(分泌)oxytocin, its effects are reduced by male hormones.
In terms of everyday behavior, the UCLA study found that women are far more likely than men to seek social contact when they are feeling stressed. They may phone relatives or friends, or ask directions if they are lost.
The study also showed how fathers and mothers responded differently when they came home to their family after a stressful day at work. The typical father wanted to be left alone to enjoy some peace and quiet. For a typical mother, coping with a bad day at work meant focusing her attention on her children and their needs.
The differences in responding to stress may explain the fact that women have lower frequency of stress-related disorders such as high blood pressure or aggressive behavior. The tend-and-befriend regulatory(調(diào)節(jié)的) system may protect women against stress, and this may explain why women on average live longer than men.
小題1:The UCLA study shows that in response to stress, men are more likely than women to _____ .
A.turn to friends for helpB.solve a conflict calmly
C.find an escape from realityD.seek comfort from children
小題2:Which of the following is true about oxytocin according to the passage?
A.Men have the same level of oxytocin as women do.
B.Oxytocin used to be studied in both men and women.
C.Both animals and people have high levels of oxytocin.
D.Oxytocin has more of an effect on women than on men.
小題3:What can be learned from the passage?
A.Male hormones help build up the body's resistance to stress.
B.In a family a mother cares more about children than a father does.
C.Biological differences lead to different behavioral responses to stress.
D.The UCLA study was designed to confirm previous research findings.
小題4:Which of the following might be the best title of the passage?
A.How men and women get over stress
B.How men and women suffer from stress
C.How researchers overcome stress problems
D.How researchers handle stress-related disorders

查看答案和解析>>

科目:高中英語(yǔ) 來源:不詳 題型:閱讀理解

How the Grand Canyon (大峽谷) was created remains one of the geology’s greatest mysteries. Some evidence suggests that the process was a gradual one in which the Colorado River (which runs through the canyon) slowly cut deeper and deeper into the ground over millions of years. But volcanic rock samples taken from the canyon now suggest that the canyon was down-cut instead.
Down-cutting is when a flood of water rushes over a landscape (地形) with enough force to cut deeply into the ground and leaves behind a canyon. Such a flood is usually released when a natural or man-made dam (堤壩) bursts.
Robert Webb, a research geologist, says natural dams seem to have formed and broken across the Colorado River several times during the last million years. The dams were built when lava(熔巖) from the eruptions of nearby volcanoes flowed into the river. The lava hardened into hard rocks and blocked the river, causing it to back up and form a lake. Each time the lake grew so huge that it broke the rock dam, releasing a flash flood that furthered the down-cutting process and deepened the canyon.
Down-cutting is not just an earthly event. Satellite photos sent back from Mars suggest that the process has happened there, too, say many other researchers.
The photos, taken by the Mars Global Surveyor, indicate that an enormous lake existed on Mars 3.5 billion years ago. The lake spilled into a large nearby hole. One edge of the hole broke, releasing a flash flood that quickly carved out a grand canyon.
The existence of down-cutting on Mars is just one more piece of evidence that the cold, dry planet was once warm and wet.
小題1:In the past, deep canyons were believed to have formed _______.
A.a(chǎn)s a result of a sudden break of volcanoes
B.due to river flows over millions of years
C.owing to the burst of artificial dams
D.thanks to our ancestors’ creative work
小題2:According to the passage, which of the following statements is TURE?
A.Several volcanoes broke out on Mars directly creating grand canyons.
B.Several great lakes existed on the upper parts of the Colorado River.
C.People built high dams on the upper parts of the Colorado River.
D.The Colorado River crossed the Grand Canyon to form down-cutting.
小題3:From the last three paragraphs we learn that _______.
A.there are great lakes on Mars
B.there are active volcanoes on Mars
C.there might be cities on Mars
D.there might be life on Mars
小題4:The passage can be titled as _______.
A.Lakes on Earth and Mars
B.The Cause of Lake Formation
C.The Force of Dam Breaking
D.Canyons—Results of Flood Cutting

查看答案和解析>>

科目:高中英語(yǔ) 來源:不詳 題型:閱讀理解

Will online courses transform world of education?
Some may wonder what it feels like to attend a class at Stanford University. The recently popular MOOCs (Massive Open Online Courses) can satisfy this desire. But they are also most likely to change the situation of higher education. Only last month,both Peking University and Tsinghua University announced plans to start open online course on the edX platform,one of the world’s major providers of MOOCs,to explore this new form of online education.
Gaining momentum(勢(shì)頭)
“It’s not only a change of platforms from offline to online. It’s more about a reform of
teaching methods,even the whole education system,”said Chen Jining,president of Tsinghua University.
The potential of MOOCs to reform education has been obvious in the US ever since the immediate popularity of the course Artificial Intelligence,taught by Stanford University professor Sebastian Thrun, who later co-founded Udacity, a platform with 1.6 million enrolled(注冊(cè)) students in 200 countries. According to Nature magazine,by June 2013,74 percent of universities in the US offered some type of online course. Lu Fang, vice-president of Fudan University,explains the appeal of MOOCs as a simple case of supply and demand:“The demand for high quality educational resources from both enrolled students and professionals is feeding the rise of MOOCs,in which classes usually taught by top teachers are available to everyone,”said Lu.
Too early to replace
With easy access and free of charge, MOOCs are said to have the potential to change the present education system. But there are barriers,because hardly any universities offer degree certificates, as college administrators point out, it’s difficult to confirm if students are foaming anything in MOOCs,reposed USA Today.
The Wall Street Journal also reposed that,presently,a typical MOOC student is likely to have
already graduated from college and is using the course to explore an interest or acquire professional
skills. Even so, an increasing number of undergraduates are signing up.
“What we are really establishing(創(chuàng)建)are educational pathways for people who want skills that are related to contemporary jobs,”Thrun told The Wall Street Journal.
小題1:MOOCs have been considered likely to reform education since___________.
A.the founding of Udacity
B.the wide application of online education
C.the popularity of the course Artificial Intelligence
D.the opening of MOOCs on the edX platform in China
小題2:According to Lu Fang, MOOCs have become popular because___________.
A.high quality educational resources are in demand
B.students can attend courses in famous universities
C.college students have access to famous teachers
D.MOOCs have brought about revolution in education
小題3:What can we learn from the passage?
A.Most of the MOOCs focus on professional training for college graduates.
B.There are barriers for MOOCs to replace the present education system.
C.International companies prefer applicants who graduate from MOOCs.
D.More and more undergraduates have realized the limits of MOOCs.
小題4:The author’s attitude towards MOOCs is___________.
A.doubtfulB.negativeC.criticalD.optimistic

查看答案和解析>>

科目:高中英語(yǔ) 來源:不詳 題型:閱讀理解

My name is Cherry Carl, and I retired in June, 2003, after 35 years as a teacher and Language Arts Specialist in Santee, California.  However, I continued my role as an instructor at the University of California, San Diego, in the Reading Specialist Certification Program until June, 2009. 
I wasn't ready to retire. Teaching is in my blood! (My mother always reminded me that when I was little, I dragged the neighborhood kids in to play school whether they wanted to or not!) I still have the strong desire to make a difference for teachers, parents, and students. I'm passionate about the joy of knowing how to read and write and want every child to have the experience of closing a book with a sigh, "Wow, that was a good book!" The only way they can do that is by having the necessary skills and strategies to become independent readers. This website has been created to provide resources and materials for classroom teachers, reading and resource specialists, speech therapists, parents and students in the area of language arts. Please feel free to download and print anything that catches your eye, but please make sure to leave my name on the poetry and worksheets!
If you have specific needs or suggestions, please don't hesitate to a   sk. I'm always open to new ideas and requests. That's how the site continues to grow. You can email me at carl1404@msn.com.
Thank you so much for your heartfelt messages and testimonials. You and your children are the reason that I maintain the site and I will continue to offer the materials with little or no fees.
小題1:By saying “Teaching is in my blood” in Paragraph 2, the author means that ________.
A.she loves teaching all her life
B.she didn’t want to retire at all
C.she is a specialist in teaching
D.teaching is as important as her blood
小題2:Which of the following statements is TRUE about Cherry Carl?
A.She became a teacher at the age of 35.
B.She was interested in teaching as a child.
C.She is still a teacher in a middle school now.
D.She gave up teaching totally 35 years ago.
小題3:If you want some materials from Cherry Carl, ________.
A.you must pay some money for them
B.you can always get them free of charge
C.you should tell her before getting them
D.you should mark her name on them

查看答案和解析>>

科目:高中英語(yǔ) 來源:不詳 題型:閱讀理解

EDGEWOOD—Every morning at Dixie Heights High school, customers pour into a special experiment :the district’s first coffee shop run mostly by students with special learning needs.
Well before classes start, students and teachers order Lattes, Cappuccinos and Hot Chocolates. Then, during the first period, teachers call in orders on their room phones, and students make deliveries.
By closing time at 9.20 a.m. , the shop usually sells 90drinks.
“whoever made the chi tea, Ms. Schwartzman says it was good, ”Christy McKinley , a second year student , announced recently, after hanging up with the teacher.
The shop is called the Dixie PIT, which stands for Power in Transition. Although some of the students are not disabled, many are, and the PIT helps them prepare for life after high school.
They learn not only how to run a coffee shop but also how to deal with their affairs. They keep a timecard and receive paychecks, which they keep in check registers.
Special-education teachers Kim Chevalier and Sue Casey introduced the Dixie PIT from a similar program at Kennesaw Mountain High School in Georgia.
Not that it was easy. Chevalier’s first problem to overcome was product-related. Should schools be selling coffee? What about sugar content?
Kenton County Food Service Director Ginger Gray helped. She made sure all the drinks, which use non-fat milk, fell within nutrition(營(yíng)養(yǎng))guidelines.
The whole school has joined in to help.
Teachers agreed to give up their lounge(休息室)in the morning. Art students painted the name of the shop on the wall. Business students designed the paychecks. The basketball team helped pay for cups.
小題1:.What is the text mainly about?
A.A best-selling coffee.
B.A special educational program.
C.Government support for schools.
D.A new type of teacher-student relationship.
小題2:The Dixie PIT program was introduced in order to    .
A.raise money for school affairs
B.do some research on nutrition
C.develop students’ practical skills
D.supply teachers with drinks
小題3:How did Christy McKinley know Ms. Schwartzman’s opinion of the chi tea?
A.She met her in the shop.
B.She heard her telling others.
C.She talked to her on the phone.
D.She went to her office to deliver the tea.
小題4:We know from the text that Ginger Gray       .
A.manages the Dixie PIT program in Kenton County
B.sees that the drinks meet health standards
C.teaches at Dixie Heights High School
D.owns the school’s coffee shop

查看答案和解析>>

科目:高中英語(yǔ) 來源:不詳 題型:閱讀理解

Researchers conducting a study of hospital stays for over two hundred and eighty six thousand older folks found something interesting in their data.
The number of hospitalizations for heart disease and stroke went down significantly among a certain group of people at a certain time of year. What folks, and what time of year, you ask? Flu season and the lucky people were the ones who got flu shots(流感疫苗).
It’s generally recommended that people over fifty get their flu shots every year. Influenza(流行性感冒) is no small thing. it’s responsible for around thirty six thousand deaths a year in the U. S. alone. Getting the shots also cuts down on the chances of get­ting pneumonia(肺炎), which is especially dangerous in seniors.
But what wasn’t known was that there seems to be an added benefit to getting a flu shots in terms of warding off heart problems. The data,in fact, are quite strong in suggesting this is the case.
In this study, flu shots cut clown the number of hospitalizations for heart disease by nineteen percent. Stroke went down sixteen percent one season and a whopping twenty-three percent a second season.These are big results.
So what's the connection between getting a flu shot and having a stronger heart? It isn’t yet known.
Researchers speculate that the flu virus itself may do damage to blood vessels(血管), possibly making clots(血塊)more likely. Blood clots in the heart can cause heart attacks, and blood clots in the brain can cause strokes.
Whatever the specific details are, there's one more good reason to follow your doctor’ s advice and get that annual flu shot.
小題1:According to the study, the number of hospitalizations for heart disease and stroke went down significanntly among the ones who _____.
A.got flu shots after they were ill
B.got flu shots before they were ill
C.got flu shots at the flu season
D.got flu shots whenever convenient
小題2:The benefits of getting flu shots can be listed except that_____.
A.it can cut down on the chances of getting pneumonia
B.it can cut down the number of hospitalizations for heart disease
C.it can kill the flu virus
D.if can make blood clots
小題3:The underlined phrase "warding off" probably means_______.
A.keeping awayB.dealing withC.setting offD. picking up
小題4:According to the passage, we'd better ______.
A.work out to fight against influenzaB.get flu shot every year
C.follow our doctor's all adviceD.protect our blood vessels

查看答案和解析>>

同步練習(xí)冊(cè)答案