2．他的父母对他的前途十分有信心。(confident)

Directions: Translate the following sentences into English, using the words given in the brackets.

1．他擅长使用各种电脑。(operate)

D

Farmers in the United States sometimes plant switchgrass as a border crop. But could this tall grass lower the nation’s dependence on foreign oil?

The Department of Energy plans to invest hundreds of millions of dollars to help produce fuels from materials that are not part of the food supply. Growing corn, or maize, for fuel has raised concerns about the supply and cost of corn available for food and animal feed.

Fuel made from switchgrass or forestry waste like sawdust(锯屑) is known as cellulosic(有纤维质的) ethanol(酒精). Department officials say it contains more energy and produces fewer greenhouse gases than ethanol made from corn. Switchgrass is also easier to grow.

Last month, the Proceedings of the National Academy of Sciences published a study of switchgrass grown on low-quality land. Government scientist Ken Vogel was the lead author. The study says the switchgrass produced five times more energy than was needed to grow it. Also, it says switchgrass, over its lifetime from crop to fuel, produces much less carbon compared to gasoline.

Fossil fuels like oil take carbon from the ground and release it as waste gas when the fuel is burned. Biofuels(生物燃料) like corn and cellulosic ethanol also produce greenhouse gases, through growing crops and making the fuel. The difference is that biofuels remove carbon from the atmosphere through the growth of the feedstock, the material for the fuel.

Science magazine just published two studies of biofuels and the heat-trapping gases that scientists link to climate change. One of the reports notes that most studies have found that substituting biofuels for gasoline will reduce greenhouse gases.

But it says the earlier studies failed to count the carbon released into the atmosphere as farmers worldwide react to higher prices. They are clearing forests and grasslands to make way for new cropland to replace the grain used for biofuels. Doing so can release much of the carbon stored in the plants and soil, and sacrifice future storage.

The study found that corn-based ethanol could increase greenhouse gases for years from land use change. And it found that biofuels from switchgrass, if grown on American corn land, could also increase emissions, though by less.

The study team, led by Timothy Searchinger at Princeton University, says the result shows the value of using waste products for fuel. The other report says carbon savings depend on how biofuels are produced.

76．Switchgrass is a better fuel than corn in all the following aspects except 　　　　.

　　　　 A．switchgrass grows on low – quality land

　　　　 B．switchgrass produces more energy than corn

　　　　 C．switchgrass produces fewer greenhouse gases than corn

　　　　 D．swiotchgrass is easier to grow

77．It is implied in the underlined sentence that 　　　　.

　　　　 A．an increasing number of people worry about the use of corn as fuel

　　　　 B．there will be an increase in price of corn for food if it is used as fuel

　　　　 C．there will be an decrease in quantity of corn for food if it is used as fuel

　　　　 D．all the above choices are right

78．Biofuels produces much less carbon compared to Fossil fuels in that 　　　　.

　　　　 A．biofuels produce less greenhouse gases than fossil fuels

　　　　 B．fossil fuels release carbon while biofuels not when burning

　　　　 C．biofuels take in carbon from the air when they are growing

　　　　 D．biofuels produce greenhouse gases only when they are burning

79．The passage indicates that 　　　　　.

　　　　 A．we’d better make full use of biofuels to protect the environment

　　　　 B．the value of using biofuels remains to be further studied

　　　　 C．it’s costless to grow biofeuls

　　　　 D．biofuels are just switchgrass and corn

Section C

Directions: Read the following text and choose the most suitable heading from the list A – F for each paragraph. There is one extra heading which you do not need.

John Graham won the annual competition of tall tales, which is held at the Bridge. Inn in Santon Bridge, in Britain’s Lake District. The “world’s biggest liar” has been crowned, after telling a tale about a German World War II submarine invading Britain to get digital television decoders. The 69 – year – old Graham, who has won the title five times before, insisted to BBC radio that “it was a true story”.

The annual World’s Biggest Liar Competition, which now draws tourists and competitors from around the world, dates back to the 19 th century when it was founded to honor a famous man called Will Ritson (1808 – 1890).

The contest is always held at the Bridge Inn. Ritson was a popular pub owner who lived in the western Lake District. He always kept his customers interested with his funny stories. Of course, Ritson was a very honest and sincere man, who insisted that all his tales were true.

Each year, a contest is held to award the title of “The Biggest Liar in the World” to the person who is worthy of following in Ritson’s footsteps. More than 120 people from across the country, and from as far away as Sweden and South Africa, have taken part in this interesting competition.

Competitiors have five minutes to tell the biggest lie. Last year’s winner Sue told the truth of “telling a successful lie”, “I think you have got to keep that element of truth and then add some mad and fantastical elements. If you start off in a spaceship then you’ve lost people straight away.”

“Politicians and lawyers are banned from entering as they are judged to be too skilled at telling lies.”

第Ⅱ卷(共45分)

C

Every year, malaria (疟疾) sickens about five hundred million people. More than one million of them die, mostly young children and pregnant women in Africa.

For several years in sub-Saharan Africa, the Global Fund and other groups have been paying for bed nets treated with long-lasting insect poison. Malaria is spread by mosquito bites. The groups have also invested in antimalaria drugs for A.C.T., artemisinin-based combination therapy.

Recently, a team from the World Health Organization visited Ethiopia, Ghana, Rwanda and Zambia. These countries were the first to distribute the bed nets and medicine. The Global Fund to Fight AIDS, Tuberculosis(肺结核) and Malaria requested a study to see if the interventions were helping.

The researchers found that the answer is yes. They looked at records of children under five. They found that malaria deaths fell by sixty-six percent in Rwanda between two thousand five and two thousand seven. Deaths fell by fifty-one percent in Ethiopia, thirty-four percent in Ghana and thirty-three percent in Zambia.

The team reported that limited supplies of bed nets could help explain the more limited effects in Zambia and Ghana. But the findings in Ghana were more difficult to explain, because deaths from causes other than malaria fell more sharply. The report says this was in keeping with general improvements in health services.

The full report can be found at who. int, on the page for the global malaria program.

In another new study, researchers reported that vitamin A and zinc treatments might also help protect young children from malaria. Scientists in Burkina Faso found that malaria reinfection rates fell by thirty – four percent in a group of children treated with vitamin A and zinc.

The findings appear in Nutrition Journal, an open access publication that can be read free of charge at nutritionj. com.

72．Which is probably the most useful in fighting malaria according to the passage?

　　　　 A．Bed nets.　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 B．Medicine.

　　　　 C．Vitamin A and zinc treatments.　　　　　　　　　 D．Killing mosquitoes.

73．Why did a team from the World health Organization visit the African countries?

　　　　 A．To help the African countries to fight malaria.

　　　　 B．To identify whether their effort to fight malaria was effective.

　　　　 C．To study which people tend to be infected with malaria.

　　　　 D．To study what measures can be taken against malaria.

74．What can be concluded from the passage?

　　　　 A．Malaria only appears in Africa.

　　　　 B．Malaria is no longer a threat to African countries.

　　　　 C．The researchers are disappointed with the result of the study.

　　　　 D．People all over the world are trying to treat malaria.

75．Which one summarizes the passage best?

　　　　 A．A Success Story for Malaria Control in Africa　　　　　　　　　　　　　　　　　　

　　　　 B．Malaria in Africa

　　　　 C．Say No to Malaria

　　　　 D．How to Treat Malaria

B

Department of Homeland Security

U.S. Citizenship and Immigration Services　　　　　　　　　　 I – 797 C, Notice of Action

Form I – 797C (Rev. 01/31/05)

69．What does this table allow you to do?

　　　　 A．To apply for a visit to America.

　　　　 B．To apply for immigration to America.

　　　　 C．To apply for a visit to the People’s Republic of China.

　　　　 D．To apply for immigration to the People’s Republic of China.

70．You can get to the destination on 　　　　　.

　　　　 A．May 25,1975　　　　　 B．January 31, 2005　

C．June 18,2007　　　　　 D．July 18,2007

71．Suppose you plan to change your applicant status, you have to 　　　　　　.

　　　　 A．notify U. S. Citizenship and Immigration Services immediately

　　　　 B．pay another fee as required

　　　　 C．apply for a new F – 1, F – 3. M – 1, M – 3 or J – 1 non – immigrant visa

　　　　 D．make a phone call to the Customer Service

Section A

Directions: For each blank in the following passages there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.

This week, London will be full of celebrations to welcome the Year of the Rat. Every year, London’s Chinatown 　50　 　a spectacular event to celebrate Chinese New Year, the largest event outside of Asia.

This year in the UK, there seems to be a huge amount of 　51　 　in Chinese culture. For the third year running, the ‘China in London’ season is being held. This 　52　 event will run from February to April, finally in the Olympic torch relay, 　53　 　the Olympic flame will pass through London on its way to the start of the Beijing Games.

The ‘China in London’ season will combine a huge number of events, 　54　 from art exhibitions to modern dance, film festivals 　55　 　tea tastings, musical concerts to children’s half-term activities. In addition, 　56　 　Chinese culture festival, ‘China Now’ is launching at Chinese New Year.

This is a nationwide season of events leading up to the Beijing Olympics. As well as 　57 events, this programme includes an 　58　 　programme for schools to develop relationships with China, and a Football Exchange, where the UK Football Association will be 　59　 　children in China and offering a lucky few the chance to visit Britain on a football tour.

The main Chinese New Year 　60　 　will be held on Sunday 10th February, and is expected to attract around 300,000 visitors. It will showcase both 　61　 　and contemporary Chinese arts, bringing together British-born and Chinese performers.

The 　62　 　of the day is the grand parade through the streets of London, led by a traditional dragon dance, followed by musicians, acrobats, artists and children. There will be a large stage and screen in Trafalgar Square featuring martial arts, music and dance.

It wouldn’t be Chinese New Year 　63　 　fireworks and firecrackers, 　64　 Leicester Square will see displays on the hour all afternoon. Nearby theatres and arts centres will also be holding special New Year events, such as variety shows.

50．A．celebrates　　　　　　　 B．welcomes　　　　　　　　 C．holds　　　　　　　　　　　　 D．delivers

51．A．passion　　　　　　　　　　 B．interest　　　　　　　　　　 C．sensation　　　　　　　　 D．increase

53．A．when　　　　　　　　　　　　 B．where　　　　　　　　　　　 C．which　　　　　　　　　　　　 D．what

54．A．exchanging　　　　　　 B．preventing　　　　　　　 C．ranging　　　　　　　　　　 D．changing

55．A．and　　　　　　　　　　　　　　 B．with　　　　　　　　　　　　　 C．for　　　　　　　　　　　　　　 D．to

56．A．one　　　　　　　　　　　　　　 B．a　　　　　　　　　　　　　　　　 C．another　　　　　　　　　　 D．that

57．A．wonderful　　　　　　　　 B．terrific　　　　　　　　　　　 C．interesting　　　　　　　 D．cultural

58．A．education　　　　　　　　 B．economy　　　　　　　　　 C．culture　　　　　　　　　　 D．football

59．A．coaching　　　　　　　　　 B．teaching　　　　　　　　　 C．parctising　　　　　　　　 D．enrolling

60．A．parade　　　　　　　　　　 B．celebration　　　　　　 C．performance　　　　　 D．show

61．A．good　　　　　　　　　　　　 B．wonderful　　　　　　　　 C．ancient　　　　　　　　　　 D．traditional

62．A．show　　　　　　　　　　　　 B．event　　　　　　　　　　　　 C．share　　　　　　　　　　　　 D．highlight

63．A．without　　　　　　　　　　 B．except for　　　　　　　　 C．with　　　　　　　　　　　　　 D．apart from

64．A．where 　　　　　　　　　　 B．so　　　　　　　　　　　　　　　 C．when　　　　　　　　　　　　 D．if

Section B

Directions: Read the following passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D.Choose the one that fits best according to the information given in the passage you have just read.

A

There is a new trend that has started in some Italian cities. It is called “Citta Slow”. “Citta” in Italian means city. The concept of “Citta Slow” aims to improve people’s quality of life by creating a more caring and ecologically correct environment through the enjoyment of food art, theatre, community gathering places and so on.

Slow cities are characterized by a way of life that enables people to live slowly. Traditions and traditional ways of doing things are valued. Slow cities have less traffic, less noise and fewer crowds.

These cities stand up against the fast pace of life often seen in other cities throughout the world.

Towns in Italy have banded together to form an organization called the Slow City Movement. The global organization hopes to help the world by deciding which cities can call themselves Slow Cities and which cities cannot.

The principles of the Slow City Movement are those we would like all cities to live by. Hopefully the movement will continue and cities that cannot meet the strict criteria will continue to work towards these principles.

The Slow City Movement is already very popular around the world. London is one of the cities that are taking part and it has its own website. The website says: “There are people in cities all over the world who have found all sorts of ways to bring a sense of relaxation to places where it can often be stressful to live. Slow London provides a place for these people to meet and share their ideas.”

65． “Citta Slow” is 　　　　　.

　　　　 A．a movement started in some Italian cities

　　　　 B．a new trend already popular around the world

　　　　 C．a way of life that enables people to live slowly

　　　　 D．a concept against the fast pace of life

66．According to the passage, to improve people’s quality of life, it is effective to 　　　　.

　　　　 A．practise as your previous generations did

　　　　 B．persuade all people to travel on foot

　　　　 C．pay a single visit to the theatre

　　　　 D．put emphasis upon the fast pace of life

67．Which of the following statement is NOT true about the Slow City Movement?

　　　　 A．The Slow City Movement was initiated in Italy.

　　　　 B．London is taking part in the Slow City Movement.

　　　　 C．The Slow City Movement is trying to form the standard of slow cities.

　　　　 D．Only some cities are slow ones by the criteria.

68．Which of the following is probably the best title of the passage?

　　　　 A．Citta Slow

　　　　 B．Slow Cities

　　　　 C．Slow Cities and the Slow Movement

　　　　 D．The Slow City Movemet

Section A　 Short Conversations

Directions: In Section A, you will hear ten short conversations between two speakers. At the end of each conversation, a question will be asked about what was said. The conversations and the questions will be spoken only once. After you hear a conversation and the question about it, read the four possible answers on your paper, and decide which one is the best answer to question you have heard.

1．　 A．7 minutes.　　　　　　　 B．40 minutes.　　　　　　 C．33 minutes.　　　　　　 D．47 minutes.

2．　 A．At a supermarket.　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 B．In a restaurant.

　　　　 C．In a post office.　　　　　　　　　　　　　　　　　　　　　　　　 D．At home.

3．　 A．Monday morning.　　　　　　　　　　　　　　　　　　　　　 B．Monday afternoon.

　　　　 C．Wednesday morning.　　　　　　　　　　　　　　　　　　 D．Wednesday afternoon.

4．　 A．Her husband.　　　　　　　　　　　　　　　　　　　　　　　　　 B．Her friend.

　　　　 C．Her boss.　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 D．Her doctor.

5．　 A．To repair a TV set.　　　　　　　　　　　　　　　　　　　　　 B．To complain about a TV set.

　　　　 C．To buy a TV set.　　　　　　　　　　　　　　　　　　　　　　　 D．To return a TV set.

6．　 A．She will be upset probably.

　　　　 B．She is pleased with their move.

　　　　 C．She feels a little disappointed.

　　　　 D．Moving to the south is better than moving to the north.

7．　 A．He wrote it last semester.　　　　　　　　　　　　　 B．He’ll finish it in a few minutes.

　　　　 C．He never does assignments early.　　　　　　 D．He isn’t going to write it.

8．　 A．At a bus stop.　　　　　　　　　　　　　　　　　　　　　　　　　 B．On a plane.

　　　　 C．On a train.　　　　　　　　　　　　　　　　　　　　　　　　　　　　 D．At a travel agency.

9．　 A．She should lose five pounds.

　　　　 B．She can’t gain any more weight.

　　　　 C．She should buy some new clothes.

　　　　 D．She needn’t worry about her weight.

　　　　 C．Time the speech.　　　　　　　　 D．Continue reviewing.

Section B Passages

Directions: In Section B, you will hear two short passages, and you will be asked three questions on each of the passages. The passages will be read twice, but the questions will be spoken only once. When you hear a question, read the four possible answers on your paper and decide which one would be the best answer to the question you have heard.

Questions 11 through 13 are based on the following passage.

11．A．Five. 　　　　　　　　　　　 B．Fifteen.　　　　　　　　　　 C．Twenty – five.　　　　 D．Fifty.

12．A．Lake Huron.　　　　　　 B．Lake Eric.　　　　　　　　 C．Lake Superior.　　　　 D．Lake Michigan.

13．A．All the lakes are located within the United States.

　　　　 B．Large, oceangoing ships can sail the lakes.

　　　　 C．The lakes have salt water.

　　　　 D．Lake Superior ranks the fifteenth largest lake in the world.

Questions 14 through 16 are based on the following passage.

14．A．By report.　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 B．By means of mobile phones.

　　　　 C．By means of the Internet.　　　　　　　　　　　　　　 D．By factories.

15．A．There is not enough meat in China.

　　　　 B．The American meat tastes better than that of China.

　　　　 C．The Chinese meat probably contains chemicals that are not allowed.

　　　　 D．They want to share the meat with those from other countries.

16．A．The plan of America makes no difference to China.

　　　　 B．China agreed to it.

　　　　 C．China will guarantee the safety of the meat from America.

　　　　 D．China expressed a strong objection.

Section C Longer Conversations

Directions: In Section C, you will hear two longer conversations. The conversations will be read twice. After you hear each conversation, you are required to fill in the numbered blanks with information you have heard. Write your answers on your answer sheet.

Blanks 17 through 20 are based on the following conversation.

Complete the form. Write ONE WORD for each answer.

Blanks 21 through 24 are based on the following conversation.

Complete the form. Write NO MORE THAN THREE WORDS for each answer.

II．Grammar and Vocabulary

Section A

Directions: Beneath each of the following sentences there are four choices marked A, B, C and D. choose the one answer that best completes the sentence.

25．An increasing number of people are paying different bills 　　　　the Net, which brings them a lot of convenience.

　　　　 A．by　　　　　　　　　　　　　　　 B．in　　　　　　　　　　　　　　　 C．on　　　　　　　　　　　　　　　 D．for

26．Standing on the top of the Oriental Pearl Tower, 　　　　a good bird’s – eye view of Shanghai city.

　　　　 A．you will get　　　　　　 B．it will be　　　　　　　　　 C．there will be　　　　　 D．it will have

27．What moves us deeply is that the seriously sick woman presents 　　　　gratitude 　　　　　

complaint.

　　　　 A．more … than　　　　　 B．no more … than　　 C．not more … than　 D．more than … /

28．The exercises are extremely difficult, but half of the class 　　　　　them ahead of time.

　　　　 A．has already finished　　　　　　　　　　　　　　　　　　　 B．will finish

　　　　 C．have already finished　　　　　　　　　　　　　　　　　　 D．finishes

29．Life 　　　　filled with good things and we should enjoy them, and that includes the lovely snow that sometimes 　　　　Shanghai.

　　　　 A．was… fell on　　　　　　　　　　　　　　　　　　　　　　　　　　 B．are… fall on

　　　　 C．is … falls on　　　　　　　　　　　　　　　　　　　　　　　　　　　 D．were … fell on

30．Schools have been lengthening the school day or added days to raise test marks, which 　　　

be costly if schools need air conditioning on hot days.

　　　　 A．might　　　　　　　　　　　　 B．can　　　　　　　　　　　　　　 C．must　　　　　　　　　　　　 D．need

31．Such an effort 　　　　　the severe snow disaster didn’t prevent the whole nation from celebrating the traditional Chinese New Year happily.

　　　　 A．as the Chinese government has made

　　　　 B．has the Chinese government made that

　　　　 C．the Chinese government has made that

　　　　 D．has the Chinese government made as

32．The Pupils in primary and secondary schools across England lack 　　　　general a view of world history as ours do.

　　　　 A．so　　　　　　　　　　　　　　　 B．too　　　　　　　　　　　　　　 C．as　　　　　　　　　　　　　　　 D．how

33．　　　　 from the job for a long time makes my father have a sense of loss.

　　　　 A．Retire　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 B．Retiring　　　　　　　　　　

　　　　 C．have retired　　　　　　　　　　　　　　　　　　　　　　　　　　　 D．Having retired

34．As a Senior Three student, we are supposed to know how we should adjust ourselves to 　　　

sure we are in the proper mental state.

　　　　 A．make　　　　　　　　　　　　 B．making　　　　　　　　　　 C．made　　　　　　　　　　　　 D．to be made

35．The five – year – old boy 　　　　, the whole family burst into tears.

　　　　 A．kidnap　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 B．kidnapped　　　　　　　

　　　　 C．was kidnapped　　　　　　　　　　　　　　　　　　　　　　　　 D．was kidnapping.

36．It seems as if she has forgotten all abut her ambition now, 　　　　　she made it hers to make a bit of progress every day when school started.

　　　　 A．while　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 B．on condition that　

　　　　 C．in spite of the fact that　　　　　　　　　　　　　　　　　 D．unless

37．The instant he finished his description, I knew it would be years 　　　　everything got right.

　　　　 A．that　　　　　　　　　　　　　 B．before　　　　　　　　　　　 C．when　　　　　　　　　　　　 D．since

38．More and more Chinese people follow the practice 　　　　they will travel to various scenic spots to enjoy the scenery in their leisure time.

　　　　 A．whether　　　　　　　　　 B．which　　　　　　　　　　　　 C．where　　　　　　　　　　　 D．that

39．The examination was continued at the beginning of the new term, 　　　　　was announced on January 29.

　　　　 A．what 　　　　　　　　　　　 B．as　　　　　　　　　　　　　　　 C．which　　　　　　　　　　　　 D．that

40．--- It is said that Ziyi Zhang sang a song for the 2008 Chinese New Year Spring Festival Party without rehearsal in advance, isn’t it?

　　 --- I’m not sure 　　　　it is true.

　　　　 A．how　　　　　　　　　　　　　 B．that　　　　　　　　　　　　　 C．why　　　　　　　　　　　　　 D．whether

Section B

Directions: Complete the passage with the words in the box. There is one extra word.

A few years ago, I went hiking with my older sister, Mary, and her friend, Jonathan. Our 　41　 　was to reach the tip of the mountain so we could see the beautiful view. The hike was 　42　 　and the heat drained our energy. As we were 　43　 　the summit, through the treetops we could see the valley below. The sight at that point was 　44　 impressive. Jason was satisfied with the view and suggested we turn back. Jessi and I insisted we keep going so we could make it to the top, but Jason decided not to continue. When we finally reached our destination, the whole view was 　45　 . The view from the summit gave us a 360 degree advantageous point of the entire area, which was much more incredible than the limited view Jason had where he stopped. It was well 　46　 　the extra effort. What is the point of this story? Set your goals and never settle for less than what you can achieve!

As we 　47　 　high school to go forward with our lives, we will each have our own mountains to climb. All of us will face different challenges and struggles. We all have the 　48　 　to set new goals and to achieve them. As we continue in life, we must remember that if we succeed, we must not be proud. If we fail, we must not 　49　 . If we face adversity (逆境), we must trust that there is always a way through it. If we experience prosperity, we must never forget those who are not so fortunate.

As graduates, we have already proven we can achieve important goals. Let’s go forward, set new goals and never settle for less than what we can achieve.

17、100.0 g无水氢氧化钾溶于100.0 g水。在t℃温度下电解该溶液，电流强度I=6.00 A，电解时间为10.00 h。电解结束温度重新调至t℃，分离析出KOH·2H₂O晶体后，测得剩余溶液的总质量为164.8 g。已知不同温度下KOH的溶解度如下表：

　求：(1)析出的晶体质量为多少克？

(2)剩余的溶液质量分数为多少？

16、气体溶解度可以表述为：密闭系统中，溶解于液体中的气体分子同液面上的气体分子在一定温度和压力下达到平衡时，一定量液体中所溶解气体的量。用

100 mL液体中溶解气体的毫升数表示。医学上对气体溶解度有一种特别的表示方法，称为气体吸收系数α，即在一定温度下，气体压力为1.01×10⁵ Pa时的溶解度，通常用1 mL液体中能溶解某气体体积(均换算成标准状态下的体积)表示。根据下表(0℃、1.01×10⁵ Pa下的几种气体的吸收系数)：

(1)求37℃、1.01×10⁵ Pa时，O₂在水中的溶解度。吸收系数主要决定于气体和溶剂的本性，也与温度和气体压强有关。在温度一定时，气体的吸收系数与该气体的平衡分压成正比。

(2)人体的动脉血和静脉血中，O₂的分压分别为1.36×104 Pa和5.37×10³ Pa，试计算100 mL静脉血流经肺泡，经气体交换后，能给身体组织带去多少体积的氧气(标准状况下)。

15、某物质的溶解度曲线如下图，试回答：

(1)A、B、C三点的含义_____________。

(2)A、B、C三点的溶质的质量分数的大小_____________。

(3)D、B、E三点的溶质的质量分数的大小_____________。

(4)将C点溶液变为饱和溶液应采取的措施是_____________。