Global warming happens when greenhouse gases trap heat and light from the sun in

Global warming happens when greenhouse gases trap heat and light from the sun in

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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(过滤)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.and 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.
小题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
小题2:The underlined word ‘it” in Paragraph 2 refers to__________.
A.lightB.greenhouse effectC.temperatureD.heat
小题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.
小题4:What is the main idea of the third paragraph?
A.lf there is greenhouse effect.all 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.
小题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

答案

小题1:A
小题2:B
小题3:C
小题4:D
小题5:A
解析

试题分析:文章大意:文章主要讲述温室效应产生的原因以及温室效应对人类的利和弊。
小题1:细节理解题。根据文章第一段作者给出浅显易懂的例子,其目的是给读者解释全球变暖的原因。故A正确。
小题2:词义推测题。根据文章第二段it的前一句The greenhouse effect makes the earth appropriate for people to live on可知此处的it代指greenhouse。故B正确。
小题3:细节理解题。根据文章第二段Without it,the earth would be freezing,or it would be burning hot.可知大气使得地球不热也不冷。故C正确。
小题4:主旨大意题。根据文章第三段首句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.and people will die.可以得出答案。故D正确。
小题5:推理判断题。根据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.可以推测出下一段要写的内容。故A正确。
举一反三
How to deal successfully  with a child showing outstanding musical ability? It’s not always clear how best to develop and encourage his gift. Many parents may even fail to recognize and respond to their children′s need until discouragement explodes into uncooperative(不合作的)behavior. And while most schools are equipped to deal with children who are especially able in academic subjects,the musically gifted require special understanding which may not always be available in an ordinary school. Such children may well benefit from the education offered by a specialist music school.
The five music schools in Britain aim to provide all environment where gifted children can develop their skills under the guidance of professional musicians. Children here spend about half of a day on musical activities,for example,individual lessons,orchestras,chamber(室内音乐的)groups,voice training,conducting and theory. They also spend several hours a day practicing in private rooms .The rest of their time is taken up with the subjects:English,maths and basic sciences.
What are the disadvantages? An obvious problem is that the fees are high .However, each school will often scholarships and other forms of financial aid. Secondly, not all parents want to send their children to boarding school, especially at an early age .Almost all the directors of the specialist schools express doubts about the wisdom of admitting children as young as seven into such a tense and disciplined(守纪律的)environment. They stress,however, that their main aim is to turn out “well-rounded and well—balanced individual.”
小题1:If a child’s musical ability is not recognized___________.
A.the child may behave badly
B.the ability may fade away
C.the child may lose interest
D.the parents may become anxious
小题2:What probably may musically gifted children face in ordinary schools?
A.Their academic work may suffer.
B.Schools lack musical equipment
C.Music is not seen as an important subject
D.Parents and teachers don’t work together.
小题3:What makes specialist music schools different from other schools?
A.Their working day is longer.
B.A range of musical training is offered
C.More than half the day is spent on music
D.The children have mostly one-to-one lessons
小题4:According to school directors,what is a possible disadvantage for pupils?
A.Poor children may not be included
B.They may lose their individuality
C.There may be a discipline problem
D.They may be too small on arrival
小题5:The passage mainly talks about__________.
A.education and development about children
B.disadvantages of music schools
C.music schools for children with music gift
D.how to deal with music talented children

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When 18th-century scientists first came across Australia’s platypus(鸭嘴兽), they thought it was a trick. It is not surprising that the platypus made people confused. This funny-looking animal has feet and is a kind of warm-blooded mammal.
While other mammals usually keep their blood at around 37 degrees, the platypus has a lower body temperature of 32 degrees. As to its appearance, the platypus’mouth is not really like ducks’at all; its mouth actually looks a bit soft. The platypus closes its eyes when swimming. It uses its mouth to pick up outside information made by the creatures underwater.
Strangest of all, the platypus is a mammal that can lay eggs. And there is only one other kind of mammal that can lay eggs, the echidna (针鼹鼠) of Australia. Both the platy-pus and the echidna lay soft-shelled eggs, and both feed their young with their own milk that comes out of their skin. These animals also walk in a way that is similar to crocodiles(鳄鱼), with legs on the sides of their bodies rather than under them.
Though pretty, in a special way, the platypus is actually one of the few mammals that are poisonous. A male platypus has knife-like bones on its back legs which have enough poison to kill a dog.
The platypus has the honor of being one of the oldest mammals in the world. Until the early 20th century, it was hunted for its fur, but the situation has changed. Although the platypus is easily affected by pollution, it is not under any immediate threat.
小题1: What can we learn about the platypus according to the text?
A.It has a lower body temperature than other mammals.
B.It only closes its eyes when underwater.
C.It’s the only poisonous mammal in the world.
D.It feeds its young on wild animal meat.
小题2:Which of the following is NOT used as a comparison with the platypus in the text?
A.The crocodile.B.The echidna.C.The duck.D.The dog.
小题3:The following characteristics of the platypus have been described in the text EXCEPT ________.
A.its natural enemyB.its appearance
C.its walking poseD.its daily diet
小题4:We can infer from the last paragraph that the platypus _______.
A.is hunted for its meatB.is in danger of extinction
C.is endangered by air pollutionD.is well-protected now
小题5:Which of the following would be the best title for this text?
A.Platypus, a Trick?
B.Platypus, the Only Warm-Blooded Mammal
C.The Characteristics of Platypus
D.The Strange Mammal —Platypus。

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A group of senior high school students are playing outside on a basketball court. They are shouting with excitement. And they all have the same dream. They wish to play in the NBA, just like Huston Rocket’s Yao Ming. “Someday, there will be more Chinese players like Yao in the NBA,” said 15-year-old Xie Tao, a senior 1 boy at Shanghai No. 2 Middle School. Xie always watches Yao playing on TV. “He is a great player. He makes me proud to be Chinese,” he said.
Like Xie, 17-year-old Liu Yan at Beijing No. 22 Middle School is also a big NBA fan. “Since early May, I’ve not missed one game in the NBA,” said the senior 3 student.
Basketball is becoming popular in middle schools across the country. And more young players are starting to like the sport. More students are playing the game.
Jiang Hui, a basketball teacher at Beijing No. 2 Middle School, said that 85 percent of the students at this school like the sport. “Students are full of passion for the game,” Jiang’s team won the regional first prize in the 2004 National High School Boy’s Basketball League in   march. The league is the first national basketball competition for high school students.
Playing basketball is a good way to exercise. But students also enjoy it for other reasons. For Li Yan, a Senior 2 at Shanghai No. 12 Middle School, basketball teaches him lessons in life. “When I am in a game, I feel more confident about my studies, “ he said. “ It also teaches me to have a good team spirit and to enjoy friendship.”
小题1:The same dream of the group of senior high school students is to ______.
A.to play in the NBAB.be as tall as Yao Ming
C.watch Yao Ming playing on TVD.visit Huston Rocket’s center
小题2:How many students are mentioned in the passage?
A.2.B.3 C.4D.5
小题3:Which school team won the regional first prize in the first national basketball competition for high school students?
A.Shanghai No. 2 Middle School.B.Beijing No. 22 Middle School.
C.Beijing No. 2 Middle School.D.Shanghai No. 12 Middle School.
小题4:Which of the following is NOT true according to the passage?
A.Basketball is becoming popular in middle schools in Chine.
B.The 2004 National High School Boy’s Basketball League was held in May.
C.Playing basketball is a good way to exercise.
D.Students enjoys playing basketball for a lot of reasons.
小题5:Who learns to have a good team spirit from playing basketball?
A.Xie TaoB.Yao MingC.Jiang HuiD.Li Yan

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The year is 2094,It has been announced that a comet is heading towards the Earth.Most of it will miss our planet, but two pieces will probably hit the southern half of the Earth.
On 17 July, a piece four kilometers wide enters the Earth’s atmosphere with a massive explosion.About half of the piece is destoryed but the remaining part hits the South Atlantic at 200times the speed of sound.The sea boils and a huge gole is made in the sea bed.Huge waves are created and spread outwards form the hole.The eall of water,a kilometer high,rushes towards southern Africa at 800 kilometers an hour.Cities on the African coast are totally destroyed and millions of people are drowned.
Before the waves reach South America.the second piece of the comet lands in Argentina.Earthquakes and volcanoes are set off in the Andes Moutains.The shock waves move north into California and all around the Pacific Ocean. The cities of Los Angeles,San Francisco and Tokyo are completely destroyed by earthquakes,Millions of people in the southern half of the earth are already dead,but the north won’t eacape for long.Because of the explosions the sun is hidden by clouds of dust,and temperatures around the world fall to almost zero.Crops are ruined.The sun won’t be seen again for many years.Wars break out as countries fight for food.A year later,no more than 10 million remain laive.
Could it really happen?In fact,it has already happened more than once in the history of the Earth.The dinesaurs were on the Earth for over 160 million years,Then 65 million years ago they suddenly disappeared.Many scientists believe that the Earth was hit by a piece of object in space. The dinosaurs couldn’t live through the cold climate that followed and they died out .Will we meet the same end ?
小题1:What is mainly described in the passage ?
A.A historic discoveryB.A research on space
C.A scientific adventureD.An imaginary event
小题2:When the first piece hits the South Atlantic,it causes_______.
A.an earthquakeB.huge waves
C.damages to citiesD.an Earth explosion
小题3:Why can’t the northern half of the earth escape ofr long?
A.Because the land is covered with water.
B.because people there can not live at the temperature of zero.
C.Because wars break out among countries.
D.Because the light and heat from the sun can not reach the earth.
小题4:By giving the example if dinosaurs,the author tries to prove________.
A.animals could not live in the cold climate.
B.what happened 65 mollion years ago was an invented story.
C.the human beings will die out in 2094
D.the Earth could be hit by other objects in space
小题5:We may guess that the writer is_________.
A.worriedB.full of imaginationC.practicalD.a scientist

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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.
小题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
小题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.
小题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

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