湖南祁東鼎興補(bǔ)習(xí)學(xué)校2006-2007屆高三九月月考英語試題

第Ⅰ卷 （三部分， 共115分）

翱翔高考網(wǎng) www.gao-kao.com

第一部分：聽力 （共兩節(jié)，滿分30分）

第一節(jié)    （共5小題；每小題1.5分,滿分7.5分）

請聽下面5段對話。每段對話后有一個小題，從題中所給的A、B、C三個選項(xiàng)中選出最佳選項(xiàng),并標(biāo)在試題的相應(yīng)位置。聽完每段對話后，你都有10秒鐘的時間來回答有關(guān)小題和閱讀下一小題。每段對話僅讀一遍。

1. What will the woman probably do tonight?

A. See a film.       

B. Go to a concert.

C. Do some shopping.

2. Where does the conversation take place?

       A. In an office.

       B. In a hotel.

       C. In a bedroom.

3. What time is it now?

       A. 2:30.         B. 2:20.         C. 2:10.

4. What did the man buy yesterday?

       A. Shirts.       B. Shoes.        C. Trousers

5. What does the man suggest the woman do?

       A. Study at home.

       B. Go to school.

       C. Come back early.

第二節(jié)    （共15小題；每小題1.5分,滿分22.5分）

聽下面4段對話。每段對話后有幾個小題，從題中所給的A、B、C三個選項(xiàng)中選出最佳選項(xiàng)，并標(biāo)在試卷的相應(yīng)位置。聽每段對話前，你將有時間閱讀各個小題，每小題5秒鐘；聽完后，各小題將給出5秒鐘的作答時間。每段對話讀兩遍。

請聽第6段材料，回答第6第7題。

6. What is the probable relationship between the two speakers?

       A. Clerk and guest.

       B. Nurse and patient.

       C. Manager and secretary.

7. What can we learn from this conversation?

       A. The man can’t smoke in the office.

       B. The man’s living-room is full of smoke.

       C. The man can’t get a non-smoking room.

請聽第7段材料，回答第8至第10三個小題。

8. Why is the man sleeping on the job?

       A. He has to work late.

       B. He has to get up early.

       C. He has a busy social life.

9. How did the man probably go to work in the past?

       A. By bus.     B. By train.   

C. By motorbike.

10. How long does it take the man to go to work now?

       A. About two hours.

       B. About one hour.

       C. About 15 minutes.

請聽第8段材料，回答第11至第13三個小題。

11. Where is the woman probably speaking?

       A. In a changing room.

       B. At a school café.

       C. At an information desk.

12. When can the man swim in the afternoon?

       A. From one to three.

       B. From three to five.

       C. From five to seven.

13. What would the man like to play?

       A. Tennis.       B. Football.

       C. Basketball.

請聽第9段材料，回答第14至第17三個小題。

14. Why did the couple leave?

       A. They got their concert tickets.

       B. They felt angry with the woman.

       C. They didn’t want to wait any longer.

15. How soon will the ticket office be closed?

       A. In one hour.

       B. In two hours.

       C. In three hours.

16. What do we know about the woman?

       A. She quarreled with the man.

       B. She is writing for her friend.

       C. She has moved up only a little.

17. What can we learn about the man?

       A. He is willing to wait.

       B. He is pleased to see the woman.

       C. He is disappointed about his phone order.

第三節(jié)(共3小題；每小題1.5分，滿分4.5分)

聽下面一段材料，將第18至第20三小題的信息補(bǔ)充完整，每小題不超過三個單詞。聽材料前，你將有時間閱讀各個小題，每小題5秒鐘；聽完后，各小題將給出15秒鐘的作答時間。本段材料讀兩遍。

BRIGHTON TOURIST INFORMATION OFFICE

Working hours

(Mon.-Fri.): 9:00a.m. to 6:00p.m.

Information on: hotels, restaurants & 18.

_______________ in the city

City tours: from Churchill Square, around 19. ________________

Tours cost: ￡5.00

Tickets from: 20. _________________

第二部分：英語知識運(yùn)用（共兩節(jié)，滿分45分）

第一節(jié)：單項(xiàng)填空（共15小題，每小題1分，滿分15分）

21. The captain urged that the mission _____ before dark.  

     A. must be finished              B. be finished

     C. ought to be finished          D. was finished

22. --“ The door was open .”                                               

     -- “It______open. I had locked it myself and the key was in my pocket.”

     A. can’t be                    B. mustn’t be

     C. can’t have been              D. mustn’t have been

23. ---Will you lend me some pepper?

----Sorry, mine________

A. were used up                        B. ran out

C. has been run out                      D. has given out

24. As he has been in a terrible state of mind these days, on no account _______              

succeed in the coming English speech competition..

     A. has he           B. does he           C. will he         D. he will

25. So far, he must have achieved his goal, _________?                           

 A. mustn’t he        B. didn’t he C. hasn’t he       D. doesn’t he

26. So many model League members ________ the lead, we had no_______ winning victories one after another.                                                    

   A. taking; trouble        B. take; difficulty   C. took ; troubles   D. taking; difficult

27. In 1778, Banks was elected ________president of _______Royal Society, ________position he held for 42 years

A. /, /, a        B. /, the, a           C. the, /, a           D. the, the, the

  28 .--- How can I wake up so early?

  ---- Set the alarm at 5:00 am, _______ you will make it.

  A. and           B. but           C. or            D.  so

29. In 1942,Columbus and his crew arrived _______was so-called the New World by the westerners.

 A . what          B. in what        C. where        D. in which

30 ---Which day do you think is all right for our next meeting ?

  ---You make_______.  _______day is all the same to me.

 A. one ;One         B. it; Any         C. that; Some         D. this; Another

31 .The flu is believed_______ by viruses that like to reproduce in the cells inside the human nose and throat.

 A. causing      B. being caused      C. to have caused       D. to be caused

32 .Perseverance is a kind of quality----and that is ________it takes to do everything well.

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

33 .They would rather spend time_______ than ________ in the street.

 A. read; wander                      B. reading; wandering       

 C. reading; to wandering               D. reading; wander

34 . ?Oh, dear! Mary  knocked over her coffee cup. It went right over       keyboard.

?She shouldn’t put drinks so near        computer.

A. the; /         B. the; a           C. a; /             D. a; a

35 .Is this TV set________ you wish to have_________?

 A. the one; repaired   B. which; it repaired    C. the one; it repaired   D. which; repaired

第二節(jié) 完形填空 (共20小題；每小題1.5分，滿分30分)

閱讀下面短文，掌握其大意，然后從短文后所給各題的四個選項(xiàng)(A、B、C和D)中，選出可以填入空白處的最佳選項(xiàng)，并在答題卡上將該項(xiàng)涂黑。

Don and his 11-year-old son, Aaron, love basketball. For Aaron’s birthday last October, Don decided to drive him to Cincinnati, more than two hours’  36  , for the first   37   of the World Series. They had no tickets but hoped to buy a   38   from scalpers (票販子).

After arriving, they walked in the streets for two hours, carrying a   39   that said, “We need two tickets.” There were a lot of scalpers but the   40   ticket was $ 175. They were   41   to leave when a man stopped them. He   42   out two tickets and handed them to the father. “How much do you want?” “No charge.” Said the man, “  43   the game .”

When asked later, the man   44  , “I was working for Joe, who hadn’t   45   a World Series in 16 years. But he was   46   and couldn’t make it this time .So he told me to give the two tickets

  47  . The only   48   he set was to give the tickets to people I thought would be worthy. A lot of people looked   49   they might just take the tickets and   50   them. Then I saw you. You seemed very   51   and you made me   52   my dad and me when I was a child. I would have died to go to a World Series game with my father. But I never did.”

How   53   it was to Don and his son! Here is what Don said, “It’s the most memorable thing that ever happened to us. My boy and I must have turned to each other 30 times during the game and said, ‘I can’t   54   this.’ We’ll never forget   55  .”

36．A．way                    B．a(chǎn)way                   C．distance               D．beyond

37．A．game                 B．show                   C．exhibition            D．sport

38．A．ticket                 B．bill                     C．pair                    D．card

39．A．letter                  B．newspaper           C．sign                    D．book

40．A．best                    B．cheapest              C．worst                  D．most expensive

41．A．a(chǎn)ble                    B．glad                    C．willing                D．a(chǎn)bout

42．A．gave                  B．turned                 C．sent                    D．pulled

43．A．Enjoy                 B．Join                    C．Look                   D．Play

44．A．explained           B．continued           C．a(chǎn)dded                 D．repeated

45．A．seen                   B．missed                C．been to               D．gone to

46．A．kind                   B．free                    C．well                   D．ill

47．A．up                     B．in                      C．a(chǎn)way                  D．off

48．A．ticket                 B．game                  C．rule                    D．example

49．A．if                       B．a(chǎn)s if                   C．though               D．even though

50．A．use                    B．get                     C．send                   D．sell

51．A．happy                B．a(chǎn)nxious              C．shy                    D．excited

52．A．realize                B．recognize            C．know about         D．think of

53．A．proud                 B．necessary            C．fortunate            D．difficult

54．A．believe               B．see                     C．think                  D．do

55．A．the game            B．Joe                    C．that night            D．the players

第三部分 閱讀理解（共20小題；每小題2分，滿分40分）

閱讀下列短文，從每題所給的四個選項(xiàng)（A、B、C和D中選出最佳選項(xiàng)）

A

London―Big Ben, the landmark London clock renowned for its accuracy and chime(鐘聲), stopped ticking for 90 minutes, an engineer said Saturday.

Officials do not know why the 147-year-old clock on the banks of the River Thames stopped at 10:07 pm on Friday. It resumed keeping time, but stalled again at 10:20 pm and remained still for about 90 minutes before starting up again, a spokeswoman for the House of Commons said.

There has been speculation(推測) that a recent period of hot weather may have been to blame. Temperatures in London reached 90ㄈ on Saturday, and forecasts called it England’s hottest day in May since 1953.

Big Ben, which is operated by the Palace of West-minister, survived attacks by German Luftwaffe bombers during World War Two, continuing to mark the time to within 1.5 seconds of Greenwich Mean Time.

However, the clock has experienced occasional problems. In 1962, snow caused the clock to ring in the New Year 10 minutes late. In 1976, the clock stopped on April 30, 1997, and once more three weeks later.

Big Ben is actually the clock’s 13-ton bell, which was named after Sir Benjamin Hall, the British commissioner of works at the time the clock was built.

The official name for the Gothic tower holding Big Ben is St. Stephen’s Tower. Standing 315 feet tall, it was completed in 1858 after an 1834 fire destroyed most of the Palace of Westminister.

56. What does the underlined word “resumed’ (in paragraph 2) mean?

 A. stopped something from happening      B. Went on doing something

 C. stopped because there is not enough power to keep it going

 D. started doing something again after stopping

57. How many occasional problems has Big Ben experienced so far?

 A. 3.            B. 4.            C. 5.              D. 6.

57. Which of the following statements is TRUE according to the passage?

 A. Big Ben was known only for its accuracy.

 B. Big Ben also stopped because of the hot weather on April 30, 1997.

 C. German Luftwaffe bombers didn’t destroy Big Ben during World War Two.

 D. An 1834 fire destroyed most of the Palace of Westminister including Big Ben.

58. Which is the best title for the passage?

 A. Hot weather is to blame

 B. London’s Big Ben mysteriously stops ticking

 C. The history of Big Ben

 D. Big Ben has experienced occasional problems

                                     B

What should you think about when trying to find your career? You are probably better at some school subjects than others. These may show strengths that you can use in your work. A boy who is good at mathematics can use that in an engineering career. A girl who spells well and likes English may be good at office work. So it is important to know the subjects you well in at school. On the other hand, you may not have any specially satisfactory standard. Although not all subjects can be used directly in a job, they may have indirect value. A knowledge of history is not required for most jobs but if history is one of your good subjects you will have learned to remember facts and details. This is an ability that can be useful in many jobs.

Your school may have taught you skills, such as typing or technical drawing, which you can use in your work. You may be good at metalwork or cookery and look for a job where you can improve these skills. If you have had a part-time job on Saturdays or in the summer, think what you gained from it. If nothing else, you may have learned how to get to work on time, to follow instructions and to get on with older workers. You may have learned to give correct change in a shop, for example. Just as important, you may become interested in a particular industry or career you see from the inside in a part-time job.

Facing your weak points is also part of knowing yourself. You may be all thumbs when you handle tools, perhaps you are a poor speller or can’t add up a column of figures. It is better to face any weakness than to pretend they do not exist. Your school record, for instance, may not be too good, yet it is an important part of your background. You should not be apologetic about it but instead recognize that you will have a chance of a fresh start at work.

60. What is the passage mainly about?

 A. The significance of working hard at school.

 B. The direct and indirect value of school work.

 C. How to face one’s weakness.

 D. Choosing a career according to one’s strong points.

61. According to the passage, doing a part-time job as a student _______.

 A. can help afford one’s education

 B. is a good way to practice skills learnt in school

 C. can help you to prepare for future work

 D. is a waste of time that could have been spent on study

62. From the passage we learn that if a student’s school performance is not good, he _______.

 A. should pay more attention to learning skills and developing abilities

 B. will be regretful about his bad results

 C. may also do well in his future work

 D. should restart his study in school

63. The underlined phrase “be all thumbs” (in paragraph 3) probably means “_______”.

 A. be clumsy at doing things                B. be skillful in doing things

 C. don’t have interest in certain things        D. be easily bored in doing things

C

   Happiness, rather than working hard, is the key to success, according to research published yesterday. Cheerfu1 peop1e are more 1ikely to try new things and challenge（挑戰(zhàn)） themselves， which strengthens their good emotion and leads to success in work，good relationships and strong health，say psychologists（心理學(xué)家）.

   The findings suggest that happiness is not a “ feel-good” luxury（奢侈品），but is necessary for people’s well-being. What is more, happiness can also reach an entire nation，with people in” happy” nations being more likely to help others.

 The link between happiness and success was studied by a team from the University of California Riverside，led by Professor Sonja Lyubomirsky.

   First, they examined questionnaires that ask peop1e about their 1ives. “ For example, they show that happy people are likely to earn higher incomes” said Lyubomirsky. Having established the link，they wanted to discover the cause.

   “Almost always it has been taken for granted that things that connect closely to happiness are the causes of happiness，but it could be just the opposite that those things are likely to be caused by happiness，” said Professor Ed Diener from the University of Illinois，another author on the paper.

   “ There was strong evidence that happiness leads people to be more sociable，more generous and more productive at work，to make more money，and to have stronger immune（免疫）systems，”said Lyubomirsky.

   The research shows that while success can put a spring in someone’s step，peop1e need happiness in the first place to achieve success.

   According to the study， around 4 out of 5 people in modern industrialized nations arc happy at any one time.

   Success was not just about earning lots of money. “ We describe success as having the things that culture or society values，whether it be friends，close family, money and income，or long life，”said Diener.

    However，sorrowful people arc not predetermined to lead a life of failure.

64. In this passage，which of the following viewpoints does Professor Lyubomirsky state？

  A. People in less happy countries are more likely to help others.

  B. Things connected to happiness are brought about by happiness.

  C. Happiness results in richer and healthier people.

  D. Success means possessing things that a cu1ture or society thinks highly of.

65. The underlined phrase “ put a spring in someone’s step” means          .

  A. put you in good spirits            B. put spring water on your feet

  C. have a pleasant walk in spring      D. step into a cheerful spring

66. According to the passage，which of the following is true？

  A. People arc happy because they earn more money.

  B. People earn more money because they are happy.

  C. Working hard is important for being successful.

  D. We can do whatever we like as 1ong as we feel happy.

67. We can infer from the passage that          .

  A. fee1ing good is a cause and not an effect of achievement

  B. our life would be a failure if we were not happy

  C. happiness is just a personal problem

D

For some scientists, every day is Groundhog Day. But these researchers aren’t looking for a shadow. They’re trying to figure out how groundhogs each year put themselves into a state of nearly being dead. Body temperature quickly goes down, metabolism(新陳代謝) nearly shuts down, and heart rate slows to something nearly dead. Something changes these normally warm-blooded animals into cool balls.

　　But what? The answers could have deep implications(暗示) for humans . Explaining the mystery of hibernation(冬眠) is necessary for the attractive deep-space travel. If future generations are to stand an interplanetary journey(星際旅行), researchers must learn how to use animal-like hibernation . More immediately ,scientists believe the secrets of hibernation could drive great advances  in stroke(中風(fēng)) treatment, injury survival and even weight control.

　　“Why is it that this animal can eat like persons who are fat for several months and then shut off for a number of months?” asked Gregory Florant. He studies groundhogs, trying to understand how their energy regulation can change so greatly.

　　Contrary to popular ideas, hibernating animals don’t sleep for the winter and wake up in the spring. Hibernation is not sleep. An animal will periodically wake and then go back down into a state known as torpor(蟄伏). The particular mark of hibernation is a great rise and fall in metabolism ?wild swings (突然轉(zhuǎn)變) in body temperature and blood flow that a person could not stand..

　　Since so many different mammals can hibernate, scientists believe the ability for human to survive similar changes of metabolism is probably buried in the genetic code, which remains a mystery. “ We are mammals, therefore we share genes with other mammals that can do this ,” Dr. Florant said. “We haven’t discovered what genes are directly involved.”

　　But researchers have recently gained some important breakthroughs about the process.

68. According to the passage, “groundhogs” should be ________ .

A. a kind of bird                    B. cold-blooded animals 

C. animals able to hibernate         D. a kind of snake                                               

69.According to the passage ,when groundhogs are hibernating, they ______ .

  A. will experience great energy regulation changes

  B. can still fly freely together

  C. must change some genes in their bodies

  D. will completely shut down their metabolism

70. Finding out the secrets of hibernation is important for interplanetary journey

because travelers probably _______ .

  A. can change their body temperature            B. can control their blood flow

C. can stand temperature changes in space       D. don’t need to carry much food

71. Which of the following would follow the last paragraph?

  A. The environment for hibernating animals   B. The recent discovery about hibernation

  C. The process of hibernating              D. The recent discovery of space travel

E

Seeing may be believing，but hearing a sound first may help your sense of sight，according to results of a new study.

   Researchers at the University of California of San Diego report that people were more accurate at noticing a flash of light when a sound was produced at the same place immediately before the light flashed.

   “We used a loud sound to catch our participants’（受試者）attention” one of the study’s authors, Dr McDonald， said in an article.  During some experiments， the sound occurred at the same location as the flash of light，while at other times it was produced on the opposite side of participants’ field of sight. The 33 participants in the study were more accurate at noticing the flash of light when the sound occurred on the same side，suggesting that sound can help direct visual（視覺的）attention.

   According to McDonald， his research team plans to continue studying the relationship between sight and sound. It will be interesting to see， he said，what happens to the ability to pay attention when one of the sense does not work as well as it should，as in a person who is blind of has hearing problems.

   McDonald also noted that research into the relationship between sight and sound could affect the way we 1ook at peop1e with attention disorder. Traditionally，these people together are considered to have attention prob1em，but in some people the problem may be caused by hearing or sight deficits（缺陷）.

   “ It could be possible that they cou1d have a deficit in one sense or another，or in relating sight and sound together，” McDonald said. Research into this area may lead to better treatment for people who have a hard time paying attention. It may be a good idea to take into consideration the relationship between sound and sight when designing warning signals，such as for an airplane pilot.

72. By saying “ Seeing may be believing” ，the writer is suggesting that          .

   A. there is a relationship between hearing and seeing

   B. the saying has some influence on their research

   C. you should read the research findings in this article

   D. you should visit the laboratory in person

73. One question the research team wants to study is how           .

   A. to deal with people’s hearing problems

   B. to improve pilots’ attention during flight

   C. people with hearing or sight deficits can improve their attention

   D. hearing or sight deficits affect people’s ability to pay attention

74. McDonald believes that the study of the relationship between sight and sound will        .

   A. have practical values for medical doctors and pilots

   B. help change the well-being of medical doctors

   C. prevent people from having hearing or sight problem

   D. help to improve people’s eyesight

75. Which is the best title for the passage？

   A. A cure for people with hearing problems.

   B. The study of people’s attention.

   C Sound helps to improves people’s attention.

   D. Sound helps to notice the flash of light.

第四部分：寫作（共兩節(jié)，滿分35分）

第一節(jié) 填空（共10小題上，每小題1分，滿分10分）

短文閱讀，根據(jù)所讀內(nèi)容在文后76～85的空格里填上適當(dāng)?shù)膯卧~或短語，并將答案轉(zhuǎn)寫到答題卡上。注意：每空不超過3個單詞。

Accidents happen , but when they destroy the delicate balance of nature and cause the whole world to suffer, they become disasters, and we should do all we can to prevent them from happening again.

Bhopal chemical leak, December 1984, Bhopal, India

An explosion in the Union Carbide chemical plant in Bhopal, India, released a deadly gas called methyl isocyanate, which is used to make pesticides. The gas formed a cloud that killed 2,500 people; another 50,100, 000 people became ill. Trees and plants and plants in the area became yellow and brittle. The explosion was caused by a mechanical failure that was not noticed in time to stop it.

Exxon Valdez oil spill, March 1989, Alaska, U.S.

On March 24,1989,11 million gallons of crude oil spilled into prince William Sound from the tanker Exxon Valldez when its hull hit a reef and tore open. The oil, which is not yet cleaned up after billions of dollars have been spent and the millions of birds, fish, and other wildlife have died, was caused by human error and could have been avoided.

Chernobyl, April 1986,USSR

At 1:23 A. M. on Saturday, April 26,1986m the reactor blew at the nuclear power plant in Chernobyl, ripping open the core, blowing the roof off the building, starting more than 30 fires, and allowing radioactive material to leak into the air. Some 31 people were killed and 200 people were treated for radiation poisoning. Still at risk are 135,000people from the 179 villages within20 miles of the plant who were exposed to the radiation before being evacuated. Glaring violations of safety rules were at the bottom of this tragic event.

Love Canal, 1953,New York, U.S.

Love Canal, a small town in upstate New York near Niagara Falls, was destroyed by waste from chemical plants. Beginning in 1947, Chemical companies could legally dump their waste products into the canal. The area developed a foul smell, trees lost their bark, and leaves fell throughout the year. A health survey found that the drinking water contained excessive levels of 82 industrial chemicals, 7 of which were thought to cause cancer. The people of Love Canal had an unusually high rate of cancer and birth defects. Eventually, many of the houses had to be abandoned. Today, the town has be partly cleaned up and some families have moved back to area.

   76  

Country

   77  

Bhopal chemical leak

   78  

a    79    failure

   80    spill

U. S

   81  

Nuclear radioactive material leak

   82  

   83  

   84    

U.S

   85 

 from chemical plants

第二節(jié)：書面表達(dá)（25分）

假定你是王華，你收到一位英籍朋友---彼得的來信，他在信中請你介紹一下中國人歡度春節(jié)（the Spring Festival）的情況。請根據(jù)下面的提示給他回信。
內(nèi)容包括：時間、地點(diǎn)、人物、活動。（如：除夕全家人歡聚、包餃子、守夜、燃放煙花爆竹、收看春節(jié)聯(lián)歡晚會、逛廟會…）
注意：信的開頭、結(jié)尾已為你寫好； 詞數(shù):100字左右。參考詞匯：煙花爆竹 fireworks and crackers; 廟會 temple fair; 春節(jié)聯(lián)歡晚會 Spring Festival Eve Variety Show
Dear Peter,
Glad to receive your letter. Now I'm telling you everything I know about how Chinese people usually spend the Spring Festival.
________________________________________________
Of course Chinese people spend the festival variously from place to place. If needed, I'll tell you more about it.

Best wishes.
Yours ever,
Wang Hua

1-17 CBABC/ ACBCA/ CBACB/ CA 18.museums 19. the city center/ historic centre  20. the bus driver

21~25 BCDCC     26~30 AB A B B   D C B B A

36~40 CACCB       41~45 DDAAB      46~50 DCCBD      51~55 BDCAB

56-59 DCCB   60-63 DCCA   64-65CA  66-75. BACAD BADAC

One possible version:

It is a custom for all members of each family, married and unmarried, to gather at their parents' house to celebrate the Chinese New Year. Adults in the family all work together to make a special kind of Chinese foodjiaozi, while small children play about in the house, or watch the Spring Festival Eve Variety Show on TV. When the New Year bell sounds, fireworks and crackers begin to explode here and there, which usually lasts for hours. Then a special meal of jiaozi starts and the whole family stay up for the night, chatting and playing games.

During the next few days, quite a lot of people visit Chinese temple fairs, which are quite like carnivals in the West. Some families go to places of interest for a visit throughout the country.

試題詳情

化學(xué)計算專題二（混合物計算）

1．  取一根鎂條置于坩堝內(nèi)點(diǎn)燃，得到氧化鎂和氮化鎂混合物的總質(zhì)量為0.470g冷卻后加入足量水，將反應(yīng)產(chǎn)物加熱蒸于并的燒，得到的氧化鎂質(zhì)量為0．486 g。
(1)寫出氮化鎂與水反應(yīng)生成氫氧化鎂和氨的化學(xué)方程式。
(2)計算燃燒所得混合物中氮化鎂的質(zhì)量分?jǐn)?shù)。