For years scientists have been concerned about the effects of air pollution on the earth's natural conditions. Some believe the air inside many houses may be more dangerous than the air outside. It may be one hundred times worse.
Indoor air pollution can cause a person to feel tired,to suffer eye pain, headache and other problems.Some pollutants(污染物)can cause breathing disorders,diseases of blood and even cancer. Most scientists agree that every modern house has some kind of indoor pollution.People began to notice the problem in the early 1970s.It is said that when builders began making houses and offices they did not want to waste energy.To do this,they built buildings that limited the flow of air between inside and outside.They also began using man-made building materials.These materials are now known to let out harmful gases.As the problem became more serious, scientists began searching for a way to deal with it.They discovered a natural pollution control system for building－green plants.Scientists do not really know how plants control air pollution.They believe that a plant's leaves absorb or take in the pollutants.In exchange the plant lets out oxygen through its leaves and through its tiny organizations on its roots.Scientists suggest that all buildings should have one large plant or several small plants inside for every nine square metres of space.Studies of different plants show that each absorbs different chemicals.So the most effective way to clean the air is to use different kinds of plants.Having green plants inside your house can make it a prettier and healthier place.
77.What is the topic of the passage?
A.Air pollution.
B.Green plants indoors.
C.Indoor air pollution.
D.Environment protecting.
78.What makes indoor air pollution more harmful than that of the air outside?
A.The limited flow of air indoors.
B.Man-made building materials.
C.Fewer green plants inside houses.
D.The energy-saving materials indoors.
79.The most effective way to clean the air is to use different kinds of plants because______.
A.they can make houses pettier and healthier
B.they may let out oxygen which people need
C.they can take in all kinds of indoor pollutants
D.they can absorb different harmful indoor chemicals
80.Which of the following is implied but NOT stated?
A.keep windows open and let fresh air in.
B.Scientists have a clear idea how plants control air pollution.
C.Oxygen is let out through the leaves and roots of the plants.
D.Green plants are a natural pollution control system for building.
Botswana lies immediately to the north of South Africa. It is bordered on the north and west by Namibia, on the north and east by Zimbabwe, and is connected by a narrow strip of land on the northern border to Zambia. Its territory consists almost entirely of a broad, flat, arid subtropical plateau(高原), though there are hills in the eastern part of the country.
In the northwest, the Okavango River empties into the Kalahari sands, creating the largest inland river delta in the world. While the Okavango Delta is home to relatively few large animals in comparison to other areas of Botswana, its clear waters and countless small islands are home to a variety of birds, plants, and smaller species of animals.
Nearby is Chobe National Park, a beautiful grassland reserve(保护区) that has gained international fame for its large elephant population. Southeast of Chobe are Botswana's large Makgadikgadi salt pans, home to numbers of blue wildebeest, several antelope species, and those international lovers of salt pans, flamingos(a kind of birds).
Almost the entire remaining portion of the country is covered by the Kalahari Desert--a varied environment of sand and grassland. Although this area of Botswana is where few people live, it is one of the richest wildlife areas in all of Africa.
Botswana's two largest parks, the Central Kalahari Game reserve and Gemsbok National Park, are found in this region.
Botswana's climate can get rather cool, particularly during the dry winter months of June to August when night occasionally brings frost. The rainy summer months (December through March) are best avoided for those interested in enjoying the best game viewing conditions.
72.South Africa is to the______of Botswana.
A.east B.north C.south D.west
73.In the Okavango Delta we can find______.
A.a lot of large animals B.many small islands
C.salt pans D.polluted waters
74.If we want to see flamingo, we should go to_______ .
A.salt pans B.Chobe National Park
C.Kalahari Desert D.Gemsbok National Park
75.It is suggested that tourists visit Botswana in______.
A.December B.March C.January D.July
76.What is the passage mainly about Botswana?
A.Location, geography and climate. B.Living conditions, politics and salt pans.
C.Parks, animals and population. D.Animals, races and sightseeing places.
The secret of happiness is to spend around ￡2.50 every day on somebody else.
To give a couple of pounds each day rather than to spend it on treats and fashion for yourself is the key to happiness, according to a new study.
Dr Elizabeth Dunn and her colleagues who did a national survey of 630 people in the United States found that people report greater happiness if they spend money more socially. That means spending on gifts for others or on charitable(慈善的) donations rather than spending on themselves.
"We wanted to test our theory that how people spend their money is at least as important as how much money they earn," says Dunn, who reports the work in Science.
The results from all three lines of research are quite the same.
"Regardless of how much income each person made," says Dunn, "those who spent money on others reported greater happiness, while those who spent more on themselves did not."
"Making a modest donation is enough to increase people's happiness" the researchers conclude.
"These findings suggest that a very small change in spending, as little as ￡2.50, may be enough to produce real gains in happiness on a given day," says Dr Dunn.
The researchers call on governments to encourage people to spend more on others to help translate increased national wealth into increased national happiness.
Surveys have also shown that happiness levels have remained almost flat within developed countries even as incomes have increased in recent decades.
65.According to the survey, what kind of people have greater happiness?
A.People who can make enough money.
B.People who can buy whatever they want.
C.People who spend money on treats and fashion for themselves.
D.People who spend a modest amount of money every day on others.
66.The underlined word "flat" probably means______.
A.smooth B.dull C.same D.interesting
67.Which of the following statements is true?
A.Researchers pay no attention to spending on others.
B.The government did much in helping others.
C."Science" in Paragraph 4 is probably a magazine.
D.The survey is very successful.
68.The purpose of the writer is to tell us______.
A.the secret of happiness. B.money spent on friends.
C.link between money and happiness. D.difference between national wealth and happiness.
第三部分：阅读理解（共20小题；每小题2分,满分40分）
Big things were happening in my life the summer I turned 13. In the middle of that summer, my parents shook my entire world and turned it upside down when they told me they were getting a divorce. I couldn't believe that our family was going to break up. Though I always knew my parents weren't very happy and they often fought, I still wanted my family to stay the same.
My life changed completely after the divorce.My mother and I moved into a small apartment across town,while my father and brother,Bill, stayed in our house.I now became a visitor whenever I went to see my dad and Bill on the weekends. And immediately I had my soon-to-be stepfather,Dan,whom I showed no interest in.I was clearly depressed, especially after Dan and my mother married and I realized that there was no way that things could change back to the way they had been.
Even though I resisted all Dan's attempts to get to know me and wasn't very nice to him, he never gave up on me. Gradually, I began to trust him. I realized that we actually had some things in common, especially when it came to movies and TV shows. We spent a lot of time together hanging out watching TV. That gave us a chance to talk and get to know each other.
Better still, Dan showed an interest in me that I had never experienced from my own father. Dan was always around when I needed advice on school or friends. Once I began to warm up to Dan, the three of us began spending a lot of time together. We often went out to eat and took short trips. Eventually, I discovered that I finally had the happy family that I had always wanted.
I now realize my parents were right about getting the divorce. Their breakup was the best thing to happen for all of us. My father also found happiness－ he remarried and had another child, my half-sister, Michelle.
At 13, I learned an important truth－change is not always the worst thing that can happen. Sometimes, it is just what we need the most.
61.According to the passage, which of the following statements is WRONG?
A.Their parents didn't love each other any longer. B.The writer didn't want his parents to divorce.
C.Their parents' divorce hurt the writer much. D.The writer was in low spirits all the time.
62.The writer and Dan have the same interests EXCEPT______.
A.seeing movies B.surfing the internet C.having talks D.watching TV
63.What does the author think of his stepfather?
A.Trustful. B.Interesting. C.Helpful. D.Boring.
64.Which of the following is the best title for this passage?
A.Divorce Is Not Always the Worst. B.A Devoted Stepfather.
C.There Is a Change in My Life. D.A True Story.
第三节：完形填空（共20小题；每小题1.5分,满分30分）
I grew up in a small town in Kentucky.My father raised chickens and ran a construction company.I was barely 10 years old 41 my dad gave me the responsibility of 42 the chickens and cleaning up the henhouse. He 43 it was important for me to have those jobs to learn 44 .Then,when I was 22, I found another 45 in Natchbill at a country music club called the Natchbill Palace. I washed dishes and 46 from 4:00 p.m. to 9:00 p.m. and then went on stage and 47 until 2:00 in the morning. It wasn't long 48 I became known as a singing cook. I had been turned down so many times by 49 companies that it was hard not to be 50 .One night, my manager and a woman executive (董事) from a 51 named Warner Brothers Records came to my performance. When the 52 was over, we sat down and talked. After they left, I 53 to myself that it was one more 54 . A few weeks later, however, my 55 received a phone call--Warner Brothers wanted to 56 me to a record deal. Soon after, I released my first record in June 1986. It sold over 2 million copies. My best 57 had gone into every job I ever held. It was the 58 of responsibility that made me feel like a man. Knowing that I had done my best filled me with 59 , I still feel that way today, 60 I have become a well-known singer.
41.A.until B.while C.though D.when
42.A.feeding B.watching C.selling D.counting
43.A.promised B.believed C.suggested D.guessed
44.A.skills B.knowledge C.hardship D.responsibility
45.A.chance B.job C.position D.time
46.A.cooked B.waited C.served D.helped
47.A.danced B.played C.sang D.talked
48.A.that B.after C.before D.since
49.A.record B.film C.restaurant D.food
50.A.excited B.surprised C.discouraged D.interested
51.A.college B.company C.association D.club
52.A.song B.play C.meeting D.show
53.A.pointed B.led C.said D.turned
54.A.success B.failure C.try D.deal
55.A.manager B.mother C.friend D.company
56.A.offer B.give C.lead D.sign
57.A.wishes B.efforts C.results D.gains
58.A.power B.duty C.sense D.use
59.A.pride B.hope C.ease D.care
60.A.in case B.now that C.as if D.even though
第二节：完成句子（共10小题；每小题1.5分,满分15分）
阅读下列各小题,根据括号内的汉语提示,用句末括号内的英语单词完成句子,并将答案写在答题卡上的相应题号后。
31.Water,which seems so simple and common,is what__________________ .(使得生命成为可能) (make)
32.All the students__________________ (渴望) admission to a key university. (desperate)
33.We haven't heard from him for a long time!__________________(他发生什么事)him? (become)
34.By the time the firemen arrived at the building, the fire __________________(已经扑灭了)by the nearby citizens.(put)
35.Not__________________ (录用)by that well-known company,he was greatly depressed.(employ)
36.The coach, as well as his team members,__________________ (认为训练重要). (attach)
37.He made the suggestion__________________ (感谢他们所做的工作). (acknowledge)
38.The two things in__________________ (他们引以为豪) were Jim's watch and Della's hair. (pride)
39._________________ (还有待观察) whether they will support us. (see)
40.They sometimes__________________(发现注意力集中困难) when reading. (find)
