8．One Monday morning，Paul and his classmates were in science laboratory for their practical chemistry lesson．The students were going to work in pairs to do an experiment．Before they began，the teacher gave them this description of the different stages of the experiment．
Stage 1：Prepare the equipment：a test tube，a crucible，a Bunsen burner and tongs．
Stage 2：Weigh 5grams of baking soda （sodium bicarbonate） and put it in a crucible．
Stage 3：Heat 10ml of hydrochloric acid （鹽酸） in a test tube．
Stage 4：Pour the warm acid onto the baking soda and continue to heat the mixture．
Result：The acid reacts with the bicarbonate（碳酸氫鹽）to form water，carbon dioxide gas and salt．The hotter the mixture，the quicker the reaction．Continue to heat the mixture until the water evaporates，leaving the salt in the crucible．
Paul and his partner followed the instructions and set up their equipment．Paul went to the cupboard to get a bottle of hydrochloric acid．He found that there was only one bottle in the cupboard so he took that．There was no label on the bottle and Paul didn't check with the teacher if it was the right solution．
He measured the liquid and poured it into a test tube．Using tongs to hold the test tube，he heated it over the Bunsen burner．That's when things started to go wrong．The liquid in the test tube was not hydrochloric acid．When it was heated，it formed a thick cloud of white gas．Soon the room was full of this strong smelling white gas．
All the students started coughing and their eyes hurt．The teacher immediately opened the windows and ordered the students to leave the laboratory at once．She realized that the liquid was a crylamide （丙烯酰胺） and that it is poisonous．
Fortunately，nobody was injured in the incident．However，it taught the students and the teacher a good lesson．

43．What lesson did the incident teach the students and the teacher？A
A．Never have a bottle without a label in the chemistry lab!
B．Obey your teacher's instructions in the Chemistry lab．
C．Acrylamide can't take the place of hydrochloric acid．
D．Finding something unusual happened，you have to leave the laboratory at once．
44．What substance were the students making in the experiment？C
A．Water              B．Carbon dioxide gas         
C．Salt               D．Poisonous gas
45．Why did Paul make the mistake？D
A．He went to the cupboard to get the bottle by himself．
B．He found that there was only one bottle in the cupboard so he took that．
C．There was no label on the bottle．
D．Paul didn't check with the teacher that it was the right solution．
46．Why did the teacher send the students out of the classroom？C
A．Because the room was full of this strong smelling white gas．
B．Because all the students started coughing and their eyes hurt．
C．Because the liquid was a crylamide and that it is poisonous．
D．Because someone was injured in the incident．

分析 一天上午，Paul和同學(xué)們在科學(xué)實驗室上化學(xué)實驗課．同學(xué)們在老師的指導(dǎo)下分組進行實驗．Paul誤用了一個沒有貼標(biāo)簽瓶子里的液體，結(jié)果出現(xiàn)了意外，丙烯酰胺反應(yīng)后生成了有毒的氣體．

解答 43．A．細(xì)節(jié)理解題．根據(jù)文章可知，同學(xué)們遵守老師的指導(dǎo)進行實驗，排除B；Paul不知道瓶子里裝的是crylamide，排除C；出現(xiàn)緊急情況時，要看情況的嚴(yán)重性再作出判斷，排除D．實驗出錯的原因是Paul用了那個沒有貼標(biāo)簽的瓶子里面的物質(zhì)，故選A．
44．C．細(xì)節(jié)理解題．根據(jù)文章"The acid reacts with the bicarbonate（碳酸氫鹽）to form water，carbon dioxide gas and salt…leaving the salt in the crucible"可知，同學(xué)們做實驗要得到的物質(zhì)是鹽，故選C．
45．D．細(xì)節(jié)理解題．根據(jù)文章"there was only one bottle in the cupboard so he took that．There was no label on the bottle and Paul didn't check with the teacher if it was the right solution"可知，瓶子上沒有貼標(biāo)簽，Paul沒有和老師一起檢查這個瓶子是否適合做實驗用，故選D．
46．C．推理判斷題．根據(jù)最后一段"She realized that the liquid was a crylamide （丙烯酰胺） and that it is poisonous．"可知，老師發(fā)現(xiàn)發(fā)生反應(yīng)的是丙烯酰胺，而丙烯酰胺是有毒的，故選C．

點評 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力，做細(xì)節(jié)理解題時一定要找到文章中的原句，和題干進行比較，再做出正確的選擇．在做推理判斷題不要以個人的主觀想象代替文章的事實，要根據(jù)文章事實進行合乎邏輯的推理判斷．

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：閱讀理解

18．Some things happen every day，but others don't．Most people look at their lives not just one day at a time，but also a week at a time．A Weekly Planner will help you record homework assignments，weekly appointments，and important dates．
You can buy a Weekly Planner，but it's just as easy （and more fun） to make one．Either way，here's how to make the best of it：
1．A good Weekly Planner will show the whole week on one page，or on two pages that face each other．With one glance，you will be able to see how your schedule looks for the 7-day period．
2．Under the date for each day，there should be lines for the hours，like a 5：00pm dentist appointment or a 6：00pm football club meeting．
3．Looking at your appointments and activities for the whole week will help you picture and predict how it will play out．You should be able to see possible conflicts，like two events that may be at the same time，or other problems，like too many assignments due on the same day．
4．When you find conflicts or schedule problems，you can work towards solving them．This might mean rescheduling an appointment，or getting an assignment done a few days earlier so you'll have time to do the other one as well．
5．Take your Weekly Planner with you everywhere．

29．A good Weekly Planner shouldB．
A．be shown on only one page．           B．show the time of the tasks or events．
C．include appointments and activities． D．only record the important events．
30．What does the underlined word"conflicts"in Paragraph 5mean？C．
A．event     B．chance     C．contradiction（矛盾）    D．a(chǎn)ppointment
31．Which is NOT true about a Weekly Planner？C．
A．It can help us plan a week's activities clearly．
B．It can help us find schedule problems．
C．It can help us know what events will happen exactly．
D．It can help us know how to change our schedules．
32．The passage mainly tells us thatD．
A．we should treasure our time．      B．how to use your time better．
C．how important a Weekly Planner is  D．how to make use of a Weekly Planner．

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

19．We may all like to consider ourselves free spirits．But a study of the tracks left by 50，000mobile phone users over three months has finally proved that the truth is otherwise．
"We are all in one way or another boring，"says Albert-Laszlo Barabasi at the Center for Complex Network Research at Northeastern University in Boston，who co-wrote the study．"Spontaneous individuals are largely absent from the population，"
Barabasi and colleagues used three months'worth of data from a mobile phone network to track the mobile phone towers each person's phone connected to each hour of the day，showing their general location．They conclude that regardless of whether a person typically remains close to home or wanders far and wide，their movements are probably predictable as much as 93percent of the time．
Surprisingly，the mobile phone data showed that individuals'movements were more or less as predictable at weekends as on weekdays，suggesting that routine（日程） is rooted in human nature rather than being an effect of work patterns．
The mobile phone records were handled to make out the most visited locations for each user．Then the probability of finding a given user at his most visited locations at each hour through the day was calculated．
People were to be found in their most visited location for any given hour 70percent of the time．Not surprisingly，the figure increased at night，and decreased at lunchtime and in the early evening，when most people were returning home from work．
The team analyzed the randomness（隨意性） of people's traces to show it was possible in theory to predict the average person's places as much as 93percent of the time．
"Say your routine movement is from home to the coffee shop to work：if you are at home and then go to the coffee shop it's easy for me to predict that you are going to work，"says co-author Nicholas Blumm．
This predictability was not much affected by differences in age，gender，language spoken or whether a person lived in a rural or urban setting．

58．The"spontaneous individuals"are most probably people whoB．
A．a(chǎn)re boring in some way
B．a(chǎn)ct with much freedom
C．can live without a mobile phone
D．rely much on a mobile phone in life
59．A phone user's location is shown byC．
A．which mobile phone network he is connected to
B．the content of his every phone call
C．which mobile phone tower he is connected to
D．how often he uses the phone every day
60．According to the sixth paragraph，a person is more likely toD at night than in the early evening．
A．return home from work
B．be found at home
C．take home as his most visited place
D．go to his most visited place
61．What is the passage mainly about？B
A．The factors that help determine one's routine．
B．The predictability of one's routine．
C．The influence of mobile phones on one's routine．
D．The new application of mobile phone．

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

16．We all enjoy the colors of autumn leaves．The changing fall leaves never fail to surprise us．Did you ever wonder how and why a fall leaf changes color？Where do the yellows and oranges come from？To answer those questions，we first have to understand what leaves are and what they do．
Leaves are nature's food factories．Plants take water from the ground through their roots．They take a gas called carbon dioxide from the air．Plants use sunlight to turn water and carbon dioxide into oxygen and glucose（葡萄糖）．Oxygen is a gas in the air that we need to breathe．Glucose is a kind of sugar．Plants use glucose as food for energy and as a building block for growing．The way plants turn water and carbon dioxide into sugar is called photosynthesis（光合作用）．A chemical called chlorophyll （葉綠素）helps make photosynthesis happen．Chlorophyll is what gives plants their green color．
As summer ends and autumn comes，the days get shorter and shorter．This is how the trees"know"to begin getting ready for winter．
During winter，there is not enough light or water for photosynthesis．The trees will rest，and live on the food they stored during summer．They begin to shut down their food-making factories．The green chlorophyll disappears from the leaves．As the bright green dies away，we begin to see yellow and orange colors．Small amounts of these colors have been in the leaves all along．We just can't see them in summer，because they are covered up by the green chlorophyll．
The bright reds and purples we see in leaves are made mostly in the fall．In some trees，like maples，glucose is trapped in the leaves after photosynthesis stops．Sunlight and the cool nights of autumn cause the leaves to turn this glucose into a red color．The brown color of trees like oaks is made from wastes left in the leaves．

36．The writer asked some questions in the beginning in order toD．
A．persuade readers to believe something
B．offer something to think over
C．get the readers excited
D．introduce the topic of the passage
37．Which of the following is TRUE about photosynthesis？B
A．Oxygen and water are produced by plants．
B．Glucose provides energy and food for plants to grow．
C．Sunlight is turned into sugar as plants'food．
D．Glucose produces chlorophyll that plants need．
38．Leaves are green in summer becauseA．
A．green chlorophyll offers a green color for leaves
B．sunlight turns water and carbon dioxide into a green color
C．there are no other colors in the leaves except green
D．glucose gives leaves their green color
39．Which of the following is TRUE according to the passage？C
A．Trees don't change colors with seasons．
B．Trees can still perform photosynthesis well in winter．
C．Trees have colors like yellow and orange even in summer．
D．Trees don't need food in winter．
40．What can be the best title of the passage？C
A．We Love the Beautiful Fall Leaf Colors        
B．Chlorophyll and the Fall Leaf Colors
C．Why Do Leaves Change Color in Fall？
D．How Do Trees'Food Factories Work？

查看答案和解析>>

科目：高中英語 來源： 題型：信息匹配

3．Li Hua has just come back from the US and intends to give some of his relatives mentioned in 61-65 some DVDs as gifts．He brings back six DVDs（A-F）．After the description of each person，decide which DVD is the most suitable one for the people．There is one extra DVD，which you do not need to use．
A61．Li Hua's Grandfather is a fan of Jules Verne，the father of modern science fiction．He dreamed to be a hero and save people in trouble when he was young．Although he is old now，he will not miss a good science fiction movie．
B62．Li Hua's mother works in a primary school as an English teacher．She thought English learning should be interesting，and she often puts on some English movies in class，so students can not only learn the language but history and culture．Of course the language in the movie will not be difficult and it will be better if there is a beautiful English song in it．
D63．Li Hua's father is a history professor in a college．He is especially interested in the history of some foreign countries such as Egypt，Germany and the UK．Now he is preparing a lecture about the history of the UK and needs some materials．
E64．Li Hua's elder sister loves reading love stories ever since she was a middle school student．Now，she has just fallen in love with a good guy．They both love seeing good films，and now，of course，a film about love is their favorite．
C65．Li Hua's elder brother is a history lover under his father's influence．He was fond of movies about wars in history．He has seen many movies about people struggling in Japanese or Nazis'prisons，and he would like to see something different．
A．The League of Extraordinary Gentlemen
       A hunter，a scientist，a vampire，an invisible man，an immortal，a spy，a beast…When a masked madman known as"The Fantom（幽靈）"tries to control the world，great adventurer Allan Quatermain sets up a team of superheroes，the likes of which mankind has never seen．Now，despite fighting their own personal demons and each other，they must join forces to save the world．
B．The Prince of Egypt
This cartoon movie attracted audiences the world over with its fantastic artistry，timeless story and powerful music．This masterpiece became one of the top animated films of all time．The extraordinary tale of two brothers---one born of royal blood，one an orphan with a secret past---is brought to life as never before，with unforgettable characters voiced by many stars．One of the two brothers becomes the ruler of the most powerful empire on earth，the other the chosen leader of his people．What they do will forever change their lives---and the world．
C．As Far As My Feet Will Carry Me
       Based on the true story of Josef Martin Bauer's best-selling novel，this powerful movie tells us the unbelievable journey of German soldier Clemens Forell in his dramatic escape from a Siberian（西伯利亞的） labor camp after World War II．Through the bitter cold of winter，deserted landscapes，and life-threatening adventures，F(xiàn)orell who was determined to return to his family makes his way，step by step，day by day，towards Persia and freedom．14，000 and 3 endless years of uncertainty later，he is finally about to reach his destination．
D．Braveheart
       This Academy Award winning film，directed by Mel Gibson，tells the story of the great thirteenth century Scottish hero William Wallace，known to his countrymen as Braveheart．Gibson stars as Wallace，who leads the Scots to fight against the cruel English king Edward I after he suffers a personal tragedy at the hands of English soldiers．Willing to fight to the death for Scotland's freedom，Wallace and his companions，whose faith in freedom is stronger than any English army，fight bravely with their enemy．
E．The wedding Planner
       Mary Fiore is the wedding planner．She's ambitious，hard-working，extremely organized，and she knows exactly what to do and say to make any wedding a fantastic event．But when Mary falls in love with a handsome doctor，her life is turned upside down---he's the groom in the biggest wedding of her career!Will she help him marry his rich girlfriend，or will Mary finally get to be the bride herself？As this sweet romantic comedy proves，when it comes to love，you can never plan what's going to happen．
F．Agent Cody
       Frankie Muniz and Hilary Duff star in this"clever and lively action-adventure"（Los Angeles Times） about a junior CIA agent on a mission to save the world，stop the bad guys and win the girl's heart…Catching your eye with cool tools，exciting special effects and the wonderful skateboard chase，Agent Cody Banks delivers great fun for the entire family．

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

13．It is winter in many parts of the world．For some areas，that means snow．Maybe even lots of snow．If you don't have to drive in it or remove it，snow can be very beautiful．When snow covers everything around you，the world looks like a"winter wonderland"．That is the name of a very popular song about winter．Richard Smith and Felix Bernard wrote the song back in 1934．There are hundreds of recordings of this happy song．
But winter is not always such a beautiful and happy time．It's cold outside．You try hard to keep warm．The days are darker and shorter．The sun rarely shines．The leaves on the trees are brown．It isn't surprising that some people are sad in winter．And some people dream about being somewhere else where it's warm and pretty-like the state of California．The Mamas and the Papas recorded this famous song"California Dreaming"．
    During the 1960s，many other famous rock groups released songs about winter．Here is a poetic song by Simon and Garfunkel called"A Hazy Shade of Winter"．They sing about life and hope and possibilities．
In 1968，the group Blood，Sweat and Tears recorded this gentle，sad song about winter．They sing about a lost love and forgotten memories in"Sometimes in Winter"．
In the early 1990s，Tori Amos wrote and recorded the beautiful song called"Winter"．She enjoyed singing about winter when she was a child．
    Finally，on a happier note comes this song written and recorded by Fountains of Wayne in 2003．They sing about a snowstorm in a New England town．Nothing unusual there．But instead of being sad or tense about the snow，they write a song about it．
51．When is snow beautiful？B
   A．When people drive in it．
   B．When people don't have to take it away．
   C．When it has snowed heavily．
   D．When people sing in the snow．
52．According to the second paragraph，winter isD．
   A．beautiful and happy                                   
B．happy and warm       
   C．lovely and hopeful                                    
   D．cold and sad
53．Which of the songs can bring us hope of life？C
   A．Winter Wonderland．
   B．California Dreaming．
   C．A Hazy Shade of Winter．
   D．Sometimes in Winter．
54．What does the passage mainly talk about？A
   A．Songs about winter．
   B．Different ideas about winter．
   C．Winter in different areas．
   D．Winter is cold but happy．

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

20．He hurried to the station onlyto find（find ）that the train had left．

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

17．Steve Flaig of Grand Rapids，Michigan，knew he'd been adopted as a baby，and when he turned 18，in 2003，he decided he'd try to track down his birth mother．The agency from which he'd been adopted gave him his mother's name：Christine Tallady．But online searches didn't turn up any results，and Flaig let it go．
In 2007，though，he searched for the name again online．This time，the search results included a home address near the Lowe's store where Flaig，then 22，worked as a deliveryman．When he mentioned the coincidence to his boss，his boss said，"You mean Chris Tallady，who works here？"
Flaig and Tallady，45，a cashier，had said hi to each other a few times at the store，but they'd never really talked．He hadn't even known her name．Flaig thought，"There's no possible way she's my mother．"
For a few months，F(xiàn)laig avoided Tallady．"I wasn't sure how to approach her，"he told a local reporter．Finally，an adoption agency employee volunteered to call Tallady for him．
When Tallady realized that the nice guy she'd been waving at was her son，she blubbered．"I wasn't ready to be a mother at that time．"She'd given him up for adoption in 1985，when she was 23．However，she'd always hoped to meet her birth son one day．Later that day，mother and son talked for almost three hours at a nearby bar．
Married with two other children，Tallady said，"I have a complete family now．"

21．What did Steve Flaig do in the Lowe's store in 2007？A
A．He worked as a deliveryman．   B．He was as a cashier．
C．He was the boss of the shop．  D．He was a local reporter．
22．The underlined word"blubbered"in Paragraph 5probably meansC．
A．shouted aloud     B．read aloud    C．said while crying   D．sang happily
23．What would be the best title for the passage？A
A．Remarkable Reunion．          B．An Adopted Son．
C．A Boss Helped Flaig           D．A Cashier's Experience．

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

18．I really love my job because I enjoy working with small children and like the challenges and awards from the job．I also think my work is important．There was a time when I thought I would never have that sort of career．
I wasn't an excellent student because I didn't do much schoolwork．In my final term I started thinking what I might do and found I didn't have much to offer．I just accepted that I wasn't the type to have a career．
I then found myself a job，looking after two little girls．It wasn't too bad at first．But the problems began when I agreed to live in，so that I would be there if my boss had to go out for business in the evening．We agreed that if I had to work extra hours one week，she'd give me time off the next．But unfortunately，it didn't often work out．I was getting extremely tired and fed up，because I had too many late nights and early mornings with the children．
One Sunday，I was in the park with the children，and met Megan who used to go to school with me．I told her about my situation．She suggested that I should do a course and get a qualification（資格證）if I wanted to work with children．I didn't think I would be accepted because I didn't take many exams in school．She persuaded me to phone the local college and they were really helpful．My experience counted for a lot and I got on a part-time course．I had to leave my job with the family，and got work helping out at a kindergarten．
Now I've got a full-time job there．I shall always be thankful to Megan．I wish I had known earlier that you could have a career，even if you aren't top of the class at school．
56．What is the author's present job？D
A．Working part-time in a college．
B．Taking care of children for a family．
C．Helping children with their schoolwork．
D．Looking after children at a kindergarten．
57．When staying with the two girls'family，the authorB．
A．was paid for extra work                  
B．often worked long hours
C．got much help form her boss               
D．took a day off every other week
58．Why did the author leave her first job？C
A．She found a full-time job．
B．She was fed up with children．
C．She decided to attend a part-time course．
D．She needed a test after working extra hours．
59．What has the author learned from her own experiences？A
A．Less successful students can still have a career．
B．Qualifications are necessary for a career．
C．Hard work makes an excellent student．
D．One must choose the job she likes．

查看答案和解析>>

同步練習(xí)冊答案