People like to look in the mirror often when they have a young and beautiful face. However, when one grows old, nobody wants to see their wrinkled old face in the mirror any more. So, many old people 题目和参考答案——青夏教育精英家教网—

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-day 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 providing mankind with new materials for many years ahead. Norbert Eisenfreich, a senior researcher at the Faunhofer Institute for Chemical Technology in Germany (ICT), said that arboform, the new material, is made of lignin(木素质）, which can be obtained from soft tissues of wood. Once mixed with several other matenals, it turns into solid and non-toxic alternative for plastics.
ICT team leader Emilia Regina Inone-Kauffmann said the wood-working 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 (铸型）.
When solid, arboform looks like plastic and possesses tho qualitie 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 sulfur(硫) in it. German researchers are sure to reduce the amount of sulfur by 90% very soon to make arboform usable for home needs.
小题1:According to the passage, plastic .

A．lignin or arboform	B．soft tissues of wood
C．plastics or wood	D．mixture of several materials

小题4:It can be concluded that German researchers will focus their future work firstly on .

A．the material’s extensive use	B．the content of sulfur in arboform
C．the production cost of arboform	D．the qualities of liquid wood

小题5:The main purpose of the text is to .

A．introduce liquid wood which will replace plastic

B．show readers how to produce arboform

C．advertise the new material-arboform

D．advertise new products made of arboform

Whenever human populations have lived in forest areas, they have always cut down trees which they used for a number of purposes, for housing and ships and served as a source of heating fuel and timber. Growth of cities often meant expansion into forest areas, while even more trees were removed to provide space for agriculture. With the growing demand for paper, vast quantities of trees have also been cut down for paper production. These factors, along with many others, have been contributing to a dangerous phenomenon known as deforestation.
In the last 5,000 years, humans have reduced forest from roughly 50 percent of the earth’s land surface to less than 20 percent. Most of this original, or old growth, forest cover is concentrated in three large areas: the Canadian and Alaskan boreal forest, the boreal forest of Russia, and the tropical forest of the northwestern Amazon Basin and the Guyana Shield. These areas comprise almost 70 percent of the world’s remaining original forest cover. In most places, the rate of deforestation is increasing, with the alarming result of 16 million hectares disappearing worldwide every year.
Loss of forest does not just mean the decline of natural resources. There are several other factors that make deforestation seriously harmful to both the human and natural worlds. One of them is changes in the global climate. For example, forest clearance is releasing substantial volumes of carbon dioxide (CO2) into the atmosphere as vegetation is burnt or decays. It has been suggested that this is a significant factor in global warming. Moreover, about 10 percent of the world’s tree species are in danger of extinction as a result of deforestation. Deforestation also threatens biological diversity through the destruction of wildlife habitats, which endangers a number of animal species and leads to their potential disappearance. Species are particularly easy to extinction in tropical rainforests because many species have few individuals per unit area, which makes reproduction more difficult. Finally, since forests play an important role in storing water and stabilizing soil, deforestation and the resulting change in land use cause soil erosion (腐蚀) and other forms of land degradation.
72.   The passage discusses all of the following EXCEPT the ________.
A. causes of deforestation                                   B. consequences of deforestation
C. management of deforestation                      D. rate of deforestation
73.   The word “diversity” in the last paragraph probably means “________”.
A. variety                                                                  B. expansion
C. development                                                      D. advantage
74.   Why does the author mention fuel and timber in Paragraph 1?
A. To explain the rate of deforestation.
B. To compare them with housing and ships.
C. To show the dangers of deforestation.
D. To illustrate the causes of deforestation.
75.   Which of the following sentences summarizes Paragraph 3 best?
A. Deforestation threatens biological diversity.
B. Deforestation has many harmful consequences.
C. Deforestation causes changes in global climate.
D. Deforestation should be stopped.

What is the hottest topic at your school? In Hangzhou Yongjin Middle School, it's money. The school ran an activity called" making a living "recently. About 800 Junior1 and Junior 2 students were divided into 112 teams .They went out to make money by selling things.
What did they choose to sell? Some sold newspapers; some chose bottled water ;some sold environmentally friendly shopping bags and bamboo baskets.
Hu Qi's team decided to sell educational books in front of the Children Activity Center. There are always many parents around there and they thought parents would like to spend money for their children, especially on books .But unfortunately, they came across urban management officers(城管）.The officers asked them to leave.
"We played hide-and-seek (捉迷藏）with the officers for the whole morning" said Hu." Finally we gave up and moved to other places."
Wang Yongyi and her team sold ice cream in a square. They didn't meet any officers. But few people were interested in what they were selling.
The team then put up a board saying the money was to help the "Project Hope“for country kids .It worked. More people came to their stall(小摊）.A foreigner even gave them 100 yuan." He didn't want any change .He said he wanted to help the children," said Wang." We were touched ."
They gave the100 yuan to the "Project Hope" office later that day.
Meng Zhaoxiang and his team were luckier. They sold all their cakes in four hours, spending 39.5 yuan and getting back 80yuan.
"It was not easy to make the money," said Meng "Some people just looked .Others just tasted but didn't buy."
Now I know how hard it is for our parents to earn the money we need to lead happy lives."
60.Hu Qi's team sold books in front of the children Activity Center because_____.
A.there were no urban management officers there
B.they could play hide-and -seek there
C.they thought parents would buy books for their kids
D.they are familiar with the place
61.More people came to Wang and her team's stall because they___________.
A.liked their ice cream         B.wanted some change
C.were interested in their stall   D.wanted to help country kids
62.How much did Meng Zhaoxing's team earn in four hours?
A.39.5yuan    B.80yuan   C.40.5yuan   D.100yuan
63.Through the activity, most children learn that_______.
A.it's hard to make money   B.it's necessary to help country kids
C.it is easy to sell cakes      D.it's important to live a happy life.

阅读理解（共10小题；每小题2分，满分20分）
Have you ever heard the saying “If you want a friend, be one”?
Here is how one new teacher made friends with the girls and boys in her class on the first day of school. As the bell rang, the teacher smiled at each girl and boy. Then she said in a quiet voice, .”Good morning. How nice it is to have all of you in my class this year..I’d like to know each of you .I am sure we will enjoy working together.” Everyone felt that she meant what she said because of her sweet voice and her friendly look.
She told the girls and boys her name and wrote it on the blackboard. Then she told them some of the things she liked to do and she was hoping to do with them during the year.
Then she said to the class, “Now you know my name and the things I like and I want to know your names and the things you like. Then I will feel that I know you.”
Could you make friends by doing the same as this teacher did?
One way of getting to know girls and boys in your class is to find out more about them. It is often to be friends with those people who have the same hobbies with you. You play the same games and go on journeys together.
You may find that some new comers in your class miss their old friends and feel strange and lonely. You can invite them to take a walk or to ride bikes with you. You will find many things in common to talk about. Just talking together in a friendly manners is one good way to make friends.
86 How do you understand the saying “If you want a friend, be one’’?
If you want to have a friend, try to make one be your friend.
You can make friends by doing what a friend should do.
You may have a friend by doing everything for him.
When you need a friend, you have to be a friend of yourself.
87.The teacher’s sweet voice and her friendly look__________.
showed that she would like to be a friend of the girls and boys.
made every girl and boy happy
told the girls and boys everything about herself
meant she wanted to tell the boys and girls something interesting
88. A new comer will be our friend if ____________.
A. he always thinks of his old friend        B you ask him to do something
C. he knows you very well                 D. you talk with him in a friendly way
89.If you want to make friends with others, which of the following shouldn’t you do?
A. Learn more about them.               B. Go on journeys together
C. Share different hobbies with them        D. Try to be the same to them.
90 What is the best title for this text?
A. A Friend in Need Is a Friend Indeed     B. The Teacher Can Make Friends with Students
C. How to Make Friends with Students?     D. One Good Way to Make Friends

Driving while talking on a hand-held mobile phone has long been considered a danger. But even drivers who use hands free devices are a nuisance – because they are slowing everyone else down, according to a study.
David Strayer, a psychology professor in Utah University’s traffic lab, conducted a study involving 36 university students driving on motorways. Each used a hands free phone for half the trip but not for the other half. The students were told to obey posted speed limits and use turn signals but the rest of the driving decisions were up to them . What Strayer found is that when the drivers were distracted（使分心）by a phone conversation , they made fewer lane（车道） changes, drove slower and took longer to get where they were going. Fellow researcher Professor Peter Martin, who teaches civil and environmental engineering at Utat University, said,“Ordinarily a slower driver should be safer ， but that’s not the case when people are talking on a cell phone.”
In general , drivers who used mobile phones while driving took three percent longer to drive along the same high-density route than drivers who didn’t. When stuck behind a dawdling(磨蹭的) driver , it took them between 25 and 50 seconds longer to switch to an open lane to overtake. Those delays can add up when you consider studies that suggest as many as 10 percent of US drivers are using a cell phone at any one time. And delays in traffic streams of very small amounts can grow into massively when drivers are crossing a highway.” Our next step is to use computer models to determine just how much those delays are costing drivers in time and in extra fuel costs,” Martrin said.
63. What does the underlined word in the first paragraph mean?
A. A person who is a volunteer.         B. A person who breaks the traffic law
C. A person who is annoyed by others.   D. A person who causes trouble
64. Which of the following is TRUE , according to Martin?
A. The more slowly a person drove, the safer he was.
B. Measures should be taken to stop using mobile phones.
C. Drivers using hand-held phones had less effect on traffic than those using hands free phones
D. Driving while using mobile phones could cost drivers time and money.
65. The passage is mainly about      .
A. traffic conditions in rush hours
B. the use of mobile phones in the USA
C. using hands free devices behind the wheel
D. a comparison between hand-held phones and hands free ones

Our sense of hearing is one of the most important means of knowing what is going on around us. We are warned of danger by sounds. The sounds of music please us. Sound has a waste product, too, in the form of noise. Noise has been called unwanted sound. Noise is growing and it may get much worse before it gets any better.
Scientists, for several years, have been studying how noise affects people and animals and are alarmed by what they have learned.
Peace and quiet are becoming harder to find. Noise pollution is no joke. It is a threat that should be looked at carefully.
Sound is measured in units called decibels （分贝）. At a level of 140 decibels people feel pain in their ears.
Trucks, buses, motorcycles, airplanes, boats, and factories all make noise. This noise bothers not only our ears, but our minds and bodies as well.
There is a saying about "it is so noisy that you can't hear yourself think". Doctors who study noise believe that we must be able to hear ourselves think most of the time. If we don't, we may have headaches, other aches and pains, or even mental problems. Noise adds even more tension to a society which already faces too much stress.
49．The sense of hearing _______.
A．makes people feel angry
B．makes people want to dance
C．helps people to know what is happening around them
D．is something harmful to people
50．When sound is turned into noise, _______.
A．people become ill B．it makes people forget the past
C．people don't know how to deal with it D．it becomes a kind of pollution
51．Why does the passage say " Peace and quiet are becoming harder to find " ?
A．Sounds of over 140 decibels are common these days.
B．There are always wars going on in the world.
C．The world is making more and more noise.
D．All kinds of machines make noises.
52．Which of the following statements is TRUE?
A．Scientists are warning people noise can be harmful.
B．It's possible for man to get rid of all noises.
C．Sounds under 140 decibels are not considered to be noise.
D．Society has become more lively because there is noise now.

Critics of cloning often repeat the question related to the controversial(有争议的) science “Just because we can, does it mean we should?” The closer we come to being able to clone a human, the hotter the debate over it grows. For all the good things cloning may achieve, opponents say that it will do just as much harm. Another question is how to governing cloning process.
There is federal official law banning cloning in the United States, but several states have passed their own laws to ban the practice. The US Food and Drugs Administration(FDA), has also said that anyone in the United States attempting human cloning must first get its permission. In Japan, human cloning is a crime that is punished by up to 10 years in prison.
While laws are to ban cloning at this time, some scientists believe that the technology is not ready to be tested on humans. Ian Wilmut, one of the co-creators of Dolly, has even said that human cloning projects would be an irresponsible crime. Cloning technology is still in its early stages, and nearly 98% percent of cloning efforts end in failure. The embryos are either not suitable for implanting into the uterus(子宫) or they die shortly after birth.
The clones that do survive end up suffering from deadly or problematic genetic abnormalities(畸形). Some clones have been born with faulty heart, lung problems and blood vessel problems. One of the most famous cases was a cloned sheep that was born with but malformed arteries(畸形动脉) leading to the lungs.
Opponents of cloning will point out that we can enthanize(安乐死) these faulty clones of other animals, but they ask what if a human clone is born with these same problems. Advocates of cloning respond that it is now easier to pick out faulty embryos even before they are implanted into the mother. The debate over human cloning is just beginning, but as science advances, it could be the biggest moral dilemma of the 21st century.
68. Which word in the text is the opposite of the underlined word “opponents”?
A. critics B. advocates C. scientists D. co-creators
69. The writer writes this passage mainly to ________________.
A. support passing laws to ban human cloning
B. list problems with human cloning
C. introduce critics’ ideas about human cloning
D. state the debate over human cloning
70. Which of the following will Ian Wilmut probably NOT agree with?
A. Cloning technology is in its early stages.
B. Human cloning should be made illegal.
C. Very few cloning efforts are successful.
D. Cloning technology is ready to be tested on humans

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