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We experience different forms of the Sun’s energy every day. We can see its light  and feel its warmth. The Sun is the major source of evaporation (蒸发) of water from the oceans and lakes. Sunlight also provides the energy used by green plants to make their own food. These green plants then provide food for all organisms (生物) on the Earth.
Much of the energy that comes from the Sun never reaches the Earth’s surface. It is either reflected or absorbed by the gases in the upper atmosphere. Of the energy that reaches the lower atmosphere, 30% is reflected by clouds or the Earth’s surface. The remaining 70% warms the surface of the planet, causes water to evaporate, and provides energy for the water cycle and weather. Only a tiny part, approximately 0.023%, is actually used by green plants to produce food.
Many gases found in the atmosphere actually reflect heat energy escaping from the Earth’s surface back to the Earth. These gases act like the glass of a greenhouse in that they allow energy from the Sun to enter but prevent energy from leaving. They are therefore called greenhouse gases.
When sunlight strikes an object, some of the energy is absorbed and some is reflected. The amount reflected depends on the surface. For example, you’ve probably noticed how bright snow is when sunlight falls on it. Snow reflects most of the energy from the Sun, so it contributes to the low temperatures of winter. Dark-coloured surfaces, such as dark soil or forest, absorb more energy and help warm the surrounding air.
According to the passage, the root cause for weather changes on the Earth is ______.

A.the atmosphere surrounding the Earth B.water from oceans and lakes
C.energy from the Sun D.greenhouse gases in the sky

Only a small part of the Sun’s energy reaches the Earth’s surface because most of it _______________.

A.absorbed by the clouds in the lower atmosphere
B.reflected by the gases in the upper atmosphere
C.lost in the upper and lower atmosphere
D.used to evaporate water from the oceans and lakes

We learn from the passage that _______________.

A.all living things on the Earth depend on the Sun for their food
B.a forest looks dark in winter because it absorbs solar energy
C.only 0.023% of the energy from the Sun is made use of on the Earth
D.greenhouse gases allow heat energy to escape from the Earth’s surface
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The pupils of the remote Beau-Roc primary school in Haiti are chanting (singing the same words again and again).One of them plays a guitar made from an empty oil tin.Their headmistress, Emile Jean-Noel, is one of the few women school headteachers in the country.
Today, over 70% of Haitian population live without proper food, water, schools, or housing. To reduce the hunger that prevents learning and to encourage parents to send their children to school, meals are provided by the World Food Programme.
"We are so cut off that we have many difficulties," comments Emile, adding that finding chalk, school books and other materials is practically impossible.Emile tries to encourage people around her to make use of available resources.Her efforts are bearing fruit.One of her successes was convincing local women to contribute to their children' s schooling and increase their income by selling embroidery(刺绣) and other handicrafts.
Recent political instability(不稳定)has meant that the country has not invested (投资) in education for ten years.Only 44% of children go to school and less than half of them finish primary school. Less than a third of these children go on to secondary school.In rural areas it is not rare to find 17 and 18 year olds in primary school- Beau-Roc has only 4 teachers for 260 pupils.Emile works constantly to improve her pupils' environment.Under her direction, a local worker is now constructing a store house for the food delivered regularly by the WFP.
Not only is Emile' s salary small, but she receives it irregularly.For her, transport is a real headache.She lives five kilometers away and has to take the tap tap, a privately-owned bus, costing more than she can afford.
"The decision to be a rural teacher in Haiti should not be taken lightly" , Emile comments. "With all the sacrifices and risks it requires, only those who are really cut out for teaching should do it." However, Emile loves her job."I always feel at home with the children and, because the parents understand what I'm doing, I try to give my best."
Which of the following is extremely difficult for Beau-Roc primary school?

A.Teaching the women how to make embroidery and other handicrafts.
B.Persuading local women to care about their children' s education.
C.Encouraging people around to use those available resources.
D.Finding chalk, school books and other materials.

In the last paragraph, "those who are really cut out for teaching" refer to people who are _____.

A.dismissed from teaching B.unfamiliar with teaching
C.qualified for teaching D.cautious about teaching

What topic is presented in this passage?

A.Hardship for teachers. B.Devotion to education.
C.Politics and children. D.Love and beauty.

In many cultures white is often associated with something positive.A white-collar job, for instance, is the kind of job many people look for, working with your brain and not your hands.
White has a clean and pure image.That is why doctors, dentists, and nurses usually wear white uniforms.Babies are dressed in white at baptisms(洗礼)and brides wear white wedding gowns at weddings.White in these cases is the symbol of innocence or purity.
Sometimes white is used in expressions that are not good.“Whitewash” is one such expression.At first, “whitewash” meant to paint over something with white paint to make it look better.However, it means something different today: to hide or to cover up mistakes or failures.
A “white elephant” is another example of white used in a negative way.In ancient Thailand, a white elephant was regarded as a sacred animal, but it was very expensive to keep.The kings of those days presented a white elephant to the people they wanted to ruin.Once they received this holy, royal animal as a gift, they were not allowed to sell or kill it.Today, a “white elephant” means something that is big, useless, and unwanted.In America, when people want to get rid of their furniture or clothes, they often have a “white elephant sale”.

The text is mainly about________.

A.the meanings of white in English culture B.the history of some English idioms
C.some interesting customs in English culture D.some useful English words and expressions

Which expression has an historical background ?

A.White-wash. B.White-collar.
C.White elephant. D.White elephant sale.

In which statement does “white” have a negative meaning?

A.A boy is dressed in white at baptisms. B.A bride wears a white wedding gown.
C.A man whitewashes his crime. D.A girl finds a white collar job.

The author develops the text mainly by ______.

A.analyzing its cause and effect B.providing typical examples
C.comparing different ideas D.following the time order

For a writer, there is hardly any greater honor than winning the Nobel Prize for literature.
And for a woman writer, claiming the prize is even harder, for only eight women once won it. Austria’s Elfriede Jelinek is the ninth and the first since 1996.
The Stockholm-based Swedish Academy announced last Thursday that Jelinek won this year’s Nobel Prize in literature. She is recognized for her socially critical(批判的) novels and plays.
Jelinek, 57, made her literary debut (初次露面) in 1967. She has written plays, novels and poetry. She is best known for her autobiographical 1983 novel “The Piano Teacher”, made into a movie in 2001.
The basic theme of her work is the inability of women to live as people beyond the roles and personalities traditionally expected of them. Her characters struggle to lead lives not normally acceptable in society. “The nature of Jelinek’s texts is often hard to define. They shift between prose(散文) and poetry and songs, they contain theatrical scenes and film script,” said the academy.
The Nobel Prize was founded by Swedish inventor Alfred Nobel. Nobel died in 1896 and left his fortune of about US $920 million to a fund to honor people who have helped other human beings. This year each prize is worth US $13 million.
The underlined word “them” in the last second paragraph refers to _______.

A.roles B.people C.texts D.women

Elfrede Jelinek won the Nobel Prize just because _______.

A.she was an Austrian woman writer
B.she wrote socially critical novels and plays
C.her novel “The Piano Teacher” was made into a movie
D.the nature of her texts is hard to define.

Which of the following about the Nobel Prize is TRUE?

A.It is harder for a woman writer to win than a man writer.
B.The total prize every year was $920 million.
C.Women writers were not awarded until 1996.
D.Only eight women writers won the prize since 1996.

This passage is most likely taken from _______.

A.a travel magazine B.a history book C.a newspaper D.an advertisement

A few days ago my wife sent me out to buy something. When I came home, I handed(交给) her a paper bag and said, “Here are the apples you wanted.” She looked in the bag, and then she looked at me. “I told you,” she said slowly, “to buy some eggs.”
I felt worried about my absent-mindedness, so I went to see a doctor. He was a very kind man. “I have seen many people like you. It’s nothing to worry about,” he said. “If you know you are absent-minded, you are all right. But if you do not know you’re absent-minded, you may be really in trouble.”
“Many famous people were absent-minded,” the doctor told me. “Thomas Edison(爱迪生)was standing in line(排队) one day to pay his taxes(税). When he arrived at the window, he found that he had forgotten his own name. He had to ask the man who was behind him to tell him who he was.”
I felt much better and got up to leave. “Thank you, doctor,” I said. “How much do I have to pay you?”
“Ten dollars for the check-up(检查),” the doctor said.
“But doctor, I did not have a check-up!”
For a moment the doctor looked puzzled. Then he said, “Oh, yes, it was the patient before you who had a check-up. How absent-minded I am!”
It can be inferred from Paragraph 1 that when the author’s wife heard what her husband told her, she was ______.

A.excited B.surprised C.sad D.proud

The doctor took Edison’s story for example ______.

A.to show absent-mindedness is common among people
B.because he liked telling stories
C.to make the author laugh
D.to make fun of Edison

The underlined word “absent-mindedness” in the second paragraph probably means ______.

A.a feeling of anger
B.a feeling of sadness
C.an emotion (情绪) of excitement
D.a trouble in which people often forget this or that

According to the passage, who was (were) absent-minded?

A.Only the author. B.The author’s wife.
C.The author and the doctor. D.The doctor alone.

The world is filled with many interesting sounds. Some are very pleasant to hear; others are unpleasant to our ears. In a day, you probably hear hundreds of different sounds.
All sounds are different. Some may be soft; others may be loud. Some sounds are high; others are low.
Some sounds are useful. Without sound we cannot talk or listen to one another. The ringing alarm clock (闹钟)makes people wake up. The hooting of a horn (喇叭声) on the road warns careless people of danger.
We make sounds by making things move to and fro(来回地). This to-and-fro movement is called vibration (振动). It means moving up and down or forwards(向前地) and backwards(向后的) very fast. This makes sound waves(波).
We can make sounds in many ways, for example, by shouting, clapping our hands and striking the table. We can make sounds only by making things vibrate. We can talk because we can make our vocal cords (声带) vibrate. Our vocal cords are in a sound box or voice box. Two vocal cords vibrate when our lungs(肺) force the air through them.
We can make sounds ______.

A.by making things still
B.by making things vibrate
C.by making things jump up and down
D.by changing the positions of things

Some sounds are useful because ______.

A.they can wake people up
B.they can warn people to be careful when they are crossing the road
C.they make it possible for people to talk or listen to each other
D.all of the above

When the air is through our vocal cords, it can make them ______.

A.vibrate B.breathe the air
C.talk to each other D.move forward and backward

Sounds are different because ______.

A.different sounds have different vibrations
B.different sounds have different sound waves
C.different sounds have different vocal cords
D.both A and B

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