Pigs are always considered dirty animals because they roll in mud．But in fact they prefer  being quite clean．They cover themselves with mud to help stay cool．During cooler weather,  they prefer to stay clean．So do elephants,who also cover themselves in dust or mud to keep cool． When they find a place with clean water they will take a bath，using their long noses to give  themselves—or each other—a nice shower
Some animals use dust to get clean．Chinchillas (南美洲栗鼠) have very fine fur． They don`t like to take water baths because water is not warm enough for them．So, instead, they roll  around in fine dust．The dust helps to keep their fur and skin dry．This protects them from disease
Usually, a small bird is a light meal for a crocodile．But when a crocodile wants its teeth  cleaned．it lies on the ground with its mouth open．The crocodile bird goes in and picks out any  parasites(寄生蟲(chóng))between the crocodile`s teeth or under its tongue．The crocodile gets its mouth cleaned，and the crocodile bird gets dinner．
You wouldn`t think fish would need baths．But some undersea parasites live under the  fish`s skin．“Cleaner”fish，like the wrasse(隆頭魚(yú))，help take them away．The wrasse stands on its head and dances to signal a big fish that it is ready to go into the cleaning business．The big fish will stop moving and open its mouth wide so the wrasse can swim inside and pick out  parasites and bits of food．
小題1:The passage is mainly about how animals         ．
A．stay cleanB．help each other
C．get their food D．Take baths
小題2:What can we learn from the first paragraph about pigs?
A．They can help each other take baths．
B．They are dirtier during cooler weather．
C．They prefer taking baths to rolling in mud．
D．They like to stay cool and clean．
小題3:Chinchillas use dust to get clean for the following reasons EXCEPT that         ．
A． dust can dry their fur and skin
B．They are not good at swimming
C．Water is too cold for them
D．Dust is good for their health
小題4:From Paragraphs 3 and 4，we earl know that         ．
A．some animals can get clean from others`help
B．Most animals are friendly to each other
C．small animals couldn`t get food from big ones
D．All of the animals prefer to stay clean
小題5:We can infer from the last paragraph that the wrasse
A．is often eaten by other fish
B．1ikes under other fish`s skin
C．is a small kind of fish
D．1ikes taking baths

小題1:A
小題2:D
小題3:B
小題4:A
小題5:C

試題分析：本文是一篇科普類(lèi)閱讀。文章列舉了大量的例子介紹了動(dòng)物們是如何保持潔凈的。如豬，南美洲栗鼠及鱷魚(yú)鳥(niǎo)，隆頭魚(yú)等。
小題1:主旨大意題。整篇文章都介紹了動(dòng)物們是如何保持潔凈的。故選A。 　
小題2:細(xì)節(jié)題。從第一段But in fact they prefer  being quite clean．They cover themselves with mud to help stay cool可知正確答案為D
小題3:細(xì)節(jié)題。文章第二段對(duì)ACD均有描述，只有B答案表述不正確，故選B。
小題4:推理判斷題。由第三段可知，鱷魚(yú)鳥(niǎo)會(huì)幫助鱷魚(yú)清理牙齒；由第四段可知隆頭魚(yú)會(huì)幫助其他魚(yú)類(lèi)清理寄生蟲(chóng)。兩段共同之處是：某些動(dòng)物可以依靠其他動(dòng)物的幫助保持干凈。B、C、D三項(xiàng)在文章第三、四段中找不到根據(jù)。
小題5:推理判斷題。根據(jù)文章第四段最后一句可知，隆頭魚(yú)可以游入其他魚(yú)類(lèi)的口中，這說(shuō)明它是一種小魚(yú)。
點(diǎn)評(píng)：文章介紹了動(dòng)物們是如何保持潔凈的。文中列舉了大量的例子來(lái)介紹動(dòng)物保持潔凈的方式，閱讀中要注意把握方式這一線(xiàn)索，多讀幾遍，然后帶著問(wèn)題通讀全文，找出答題依據(jù)，完成閱讀。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

The goal of earthquake prediction is to give early enough warning. The U.S. Geological Survey conducts and supports research on the likelihood of future earthquakes. Scientists estimate earthquake probabilities in two ways: by studying the history of large earthquakes in a special area and the rate at which strain（拉力）accumulates（積累）in the rock.
Scientists study the past frequency of large earthquakes in order to determine the future likelihood of similar large shocks. For example scientists researched the large earthquakes in the San Francisco Bay region during the 75 years between 1836 and 1911. For the next 68 years, no earthquakes of magnitude (震級(jí)) 6 or large occurred in the region. Beginning with a magnitude 6 shock in 1979, the earthquakes in the region increased dramatically; between 1979 and 1989, there were four magnitude 6 or greater earthquakes, including a magnitude 7.1 earthquake. So scientists estimated that the probability of a magnitude 6.8 or larger earthquake occurring during the next 30 years in the region is about 67 percent.
Another way to predict earthquakes is to study how fast strain accumulates. When plate movements build the strain in rocks to a critical level, like pulling a rubber band too tight, the rocks will suddenly break and slip to a new position. Scientists measure how much strain accumulates along a fault (斷層) each year, how much time has passed since the last earthquake, and how much strain was released in the last earthquake. This information is used to calculate the time required for the accumulating strain to build to the level that results in an earthquake. This simple model is so complicated that such detailed information about faults is rare. In the United States, only the San Andreas Fault System has adequate records for using this prediction method.
Scientific understanding of earthquakes is of vital importance to the Nation. As the population increases, expanding urban development and construction encroach (侵蝕) upon areas susceptible(易受影響的) to earthquakes. With a greater understanding of the causes and effects of earthquakes, we may be able to reduce damage and loss of life from this destruction.
小題1:What does the passage mainly talk about?
A．What an earthquake is like.
B．How to predict earthquakes.
C．Where earthquakes often happen.
D．When a fault is formed.
小題2:That scientists study the history of large earthquakes in certain areas is to ultimately_________.
A．do research on the past frequency of large earthquakes
B．estimate the magnitude of similar earthquakes
C．forecast the possibilities of similar earthquakes
D．judge the specific location of future earthquakes
小題3:Which is TRUE according to the passage?
A．There were four magnitude 6 earthquakes in the San Francisco Bay region between1979 and1989.
B．The accumulating strain of the fault to a certain level results in the earthquake.
C．About 68 years after 1911, no earthquakes occurred in the San Francisco Bay region.
D．The fast increasing population on the earth is the main cause of the earthquake.
小題4:What is the critical factor of forming a fault?
A．The material of rocks.
B．The existing time span of the rocks.
C．The plate movements around the rocks.
D．The amount of strain released in the last earthquake.
小題5:According to the passage, we can know that the San Andreas Fault System____.
A．has a greater understanding of the causes and effects of earthquakes
B．stores much more information about the history of large earthquakes
C．offers the potential for doing research on the faults where strain accumulates
D．illustrates specifically how rocks along a fault are formed

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

根據(jù)短文內(nèi)容，從短文的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)，選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。
Every boy and every girl expects their parents to give them pocket money． Why do their parents just give them a certain amount?    1  
The amount of money that parents give to their children to spend as they wish differs from family to family．   2  Some children get weekly pocket money． Others get monthly pocket money．
First of all, children are expected to make a choice between spending and saving． Then parents should make the children understand what is expected to pay for with the money． At first, some young children may spend all of the money soon after they receive it． Parents are usually advised not to offer more money until it is the right time．  3  
In order to encourage their children to do some housework, some parents give pocket money if the children help around the home． Some experts think it not wise to pay the children for doing that．   4  
Pocket money can give children a chance to experience three things they can do with the money． They can spend it by giving it to a good excuse． They can spend it by buying things they want．   5  Saving helps children understand that costly goals require sacrifice（犧牲）． Saving can also open the door to future saving and investing（投資）for children．
A．They can save it for future use．
B．Timing is another consideration（考慮）．
C．As helping at home is a normal part of family life．
D．Some children are not good at managing the pocket money．
E．Learning how to get money is important for children．
F．One purpose（目的）is to let kids learn how to manage their own money．
G．By doing so, these children will learn that spending must be done with a budget

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

I was in my third year of teaching creative writing at a high school in New York, when one of my students, 15-year-old Mikey, gave me a note from his mother. It explained his absence from class the day before.
I had seen Mikey himself writing the note at his desk. Most parental-excuse notes I received were penned by my students. If I were to deal with them, I’d be busy 24 hours a day.
The forged excuse notes made a large pile, with writing that ranged from imaginative to crazy. The writers of those notes didn’t realize that honest excuse notes were usually dull: “Peter was late because the alarm clock didn’t go off.”
Isn’t it remarkable, I thought, how the students complained and said it was hard putting 200 words together on any subject? But when they produced excuse notes, they were brilliant.
So one day I typed out a dozen excuse notes and gave them to my classes. I said, “They’re supposed to be written by parents, but actually they are not. True, Mikey?” The students looked at me nervously.
“Now, this will be the first class to study the art of the excuse note --- the first class, ever, to practice writing them. You’re so lucky to have a teacher like me who has taken your best writing and turned it into a subject worthy of study. ”
Everyone smiled as I went on, “You used your imaginations. So try more now. Today I’d like you to write ‘An Excuse Note from Adam to God’ or ‘An Excuse Note from Eve to God’.” Heads went down. Pens raced across paper. For the first time ever I saw students so careful in their writing that they had to be asked to go to lunch by their friends.
The next day everyone had excuse notes. Heated discussions followed. The headmaster entered the classroom and walked up and down, looking at papers, and then said, “I’d like you to see me in my office.”
When I stepped into his office, he came to shake my hand and said, “I just want to tell you that that lesson, that task, whatever the hell you were doing, was great. Those kids were writing on the college level. Thank you. ”
小題1:What did the author do with the students found dishonest?
A．He reported them to the headmaster.B．He lectured them hard on honesty.
C．He had them take notes before lunch.D．He helped improve their writing skills.
小題2:The author found that compared with the true excuse notes, the produced ones by the students were usually__________.
A．less impressiveB．more imaginativeC．worse writtenD．less convincing
小題3:The author had the students practice writing excuse notes so that the students could learn_________.
A．the importance of being honestB．how to write excuse notes skillfully
C．the pleasure of creative writingD．how to be creative in writing
小題4:The underlined word “forged” in the second paragraph means “______”.
A．formerB．copiedC．falseD．honest
小題5:What did the headmaster think of the author’s way of teaching?
A．Effective. B．DifficultC．Misleading.D．Reasonable

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：完形填空

Many of the world’s pollution problems have been caused by the crowding of large groups of people into the cities. Supply for the needs of the people leads to further   1  by industry. If the rapid increase of world 2  continues at the present rate, there may be much greater 3  to human beings. Some scientists 4  of the increase in numbers of people as “population pollution（人口公害）”.
About 2, 000 years ago, the world population was about 250 million. It  5 a billion in 1850. By 1930 the population was two billion. It is now six billion. It is  6 to double by the year 2020. If the population  7  to grow at the same rate, there will be 25 billion people in the 8   a hundred years from now.
Man has been 9   the earth’s resources more and more 10   over the past years. Some of them are almost gone. Now many people believe that man’s 11   problem is how to control the 12   of the population. The material supplies in the world will be far from enough to  13  the human population if the present rate of increase continues. There is already over-crowding（過(guò)分擁擠）in many cities and  14  in some countries. Many people believe that human survival（生存） in the future  15  on the answer to the question.
小題1:
A．progressB．pollutionC．educationD．production
小題2:
A．a(chǎn)gricultureB．industryC．environmentD．population
小題3:
A．dangerB．harm C．benefitD．hardship
小題4:
A．dreamB．a(chǎn)pproveC．ridD．speak
小題5:
A．gotB．took C．broughtD．reached
小題6:
A．suggestedB．hopedC．expectedD．said
小題7:
A．continuesB．fails C．triesD．means
小題8:
A．worldB．countryC．starD．end
小題9:
A．discoveringB．usingC．diggingD．destroying
小題10:
A．seriouslyB．dangerouslyC．rapidlyD．steadily
小題11:
A．greatestB．easiestC．lightestD．simplest
小題12:
A．existenceB．startC．growthD．birth
小題13:
A．increaseB．decreaseC．reportD．support
小題14:
A．discussionB．starvationC．constructionD．a(chǎn)rgument
小題15:
A．dependsB．a(chǎn)greesC．savesD．passes

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Annealing is a way of making metal softer by heating it and then letting it cool very slowly. If metal is heated and then cooled very quickly , for example by dipping it in water , it will be very hard but also very brittle(脆)---that is , It will break easily. Metal that has been annealed is soft but does not break as easily . It is possible to make metal as hard or as soft as is wished, by annealing it. The metal is heated, and allowed to cool slowly , for a certain length of time. The longer the heated metal takes to cool slowly , the softer it becomes . Annealing can also be used on other materials, such as glass.
小題1: Annealing can make metal _______________.
A．hard and tough (韌) B．hard but brittle
C．soft but toughD．soft and brittle
小題2: Why do people put hot metal in water ? ____________
A．To make it hardB．To make it soft
C．To make it coolD．To make it brittle
小題3: As suggested by the text , how can glass be made less brittle ?____________
A．It can be heated and then cooled quickly
B．It can be cooled and then heated slowly
C．It can be heated and then cooled slowly
D．It can be cooled and then heated quickly

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Britain’s seed(種子) bank, the only one in the world aiming to collect all of the planet’s wild plant species, has reached its goal of banking 10 percent by 2010.
The Millennium Seed Bank Project, run by Kew Gardens—one of the oldest botanical(植物的)  gardens—will officially place the 24,200th species on Thursday, a pink, wild banana from China.
More than 50 countries are now on board with Kew's giant task but vast places of the globe, including India and Brazil, still need to join in and donate seeds, director Paul Smith said.                                                                                                                                                            
The seed bank is one of the largest and most diverse(多樣的) in the world with more than 1.5 billion seeds. Its goal is to help protect the planet’s bio-diversity during a time of climate change.
The wild banana seed is under threat of extinction(滅絕) in southwest China from agricultural development. It is a vital food source for Asian elephants and important for growing bananas for human eating.
Stored at minus-20 degrees centigrade, so they can last for thousands of years, the seeds await the day that scientists hope never comes—when the species no longer exist in the wild.
It is a race against time, Smith said, because in the last ten years alone, 20 plants held in the bank have already been wiped out in the wild. He estimates that between a third and a quarter will become extinct this century.
"It is pressing and it is happening now. An area, the size of England, is cleared of primary vegetation（植被）every year." Smith said.
Because most of the world's food and medicines come from nature, protecting wild plant species is quite important, scientists say. There are already many other seed banks safeguarding food crops, which only account for 0.6 percent of plant diversity.
For Kew's next goal—to collect a quarter of wild varieties（種類(lèi)）by 2020—the botanists need 10 million pounds a year, or a further 100 million pounds on top of the 40 million they have already been granted.
小題1:What’s the final purpose of the Britain’s seed bank?
A．To collect enough money for the project.B．To safeguard food crops.
C．To protect wild plants from extinction.D．To help scientists study wild plants.
小題2:We can learn from the passage that _______.
A．the seeds in the bank can be used now and then all over the world
B．India and Brazil haven’t joined in the Seed Bank Project at present
C．there is only one seed bank in the world at present
D．the wild plants in places like India and China will never die out
小題3:What does the underlined word “it” in paragraph 7 refer to?
A．The extinction of plant species.
B．The Millennium Seed Bank Project.
C．Britain’s seed bank.
D．Kew Gardens’ next goal.
小題4:Which of the following isn’t spoken about in the passage?
A．The global partnership of collecting wild plant species.
B．The temperature condition of the wild plant species in the bank.
C．The government’s support for the seed bank project by giving money.
D．Scientists’ concern on the extinct wild plant species.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

根據(jù)短文內(nèi)容,從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng).選項(xiàng)中有兩項(xiàng)為多余選項(xiàng).
We are all called upon to make a speech at some point in life, but most of us don’t do a very good job.  1  
So, you have to give a speech and you are terrified. You get nervous, you forget what you want to say, you stumble over words, you talk too long, and you bore your audience. Later you think, “Thank Goodness, it’s over. I’m just not good at public speaking. I hope I never have to do that again.”
Cheer up!  2  Here are some simple steps to take the pain out of speech making. Ask yourself the purpose of your speech. What is the occasion? Why are you speaking? Then, gather as many facts as you can on your subject. Spend plenty of your time doing your research. Then spend plenty of your time organizing your material so that your speech is clear and easy to follow. Use as many examples as possible, and use pictures, charts, and graphs if they help you make your points more clearly.   3  Don’t talk over their heads, and don’t talk down to them. Treat your audience with respect. They will appreciate your thoughtfulness.
Just remember: Be prepared. Know your subject, your audience, and the occasion. Be brief.  4  And be yourself. Let your personality come through so that you make person-to-person contact with your audience.
If you follow these simple steps, you will see that you don’t have to be afraid of public speaking. In fact, you may find the experience so enjoyable that you volunteer to make more speeches! You’re not convinced yet?   5  
A．It doesn’t to be that bad.
B．Take several deep breaths before your speech.
C．This article gives some advice on how to give good speech.
D．Say what you have to say and then stop.
E. Don’t say what you aren’t familiar with.
F. Never forget your audience.
G. Give it a try and see what happens.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

It helps to choose the colors you plan to live with in your home with awareness of how different colors affect your emotional and physical states. Every color has a unique meaning, and this can significantly affect how you feel in a room.
Simple Solution:
Using this simple chart, you can choose a room’s color to be in balance and harmony with the role you want a room to have in your and your family’s life.
Red: A room that is painted red will energize, inspire activity and movement, help passion, and be powerful and stimulating. it is a great choice for such gathering places. Orange enhances parties,
Orange: Orange rooms encourage happy, joyful, social gatherings. While an orange dining room or family room can stimulate the appetite, it is a great choice for such gathering places. Orange enhances parties, communication, positive feelings, and general good cheer.
 
Yellow: Yellow rooms inspire intellectual clarity, organization, clear-headed thinking, and happy energy. Yellow is considered a color for the logical left side of the brain. Yellow is also very bright and somewhat energizing.
Blue: Blue rooms are often chosen for bedrooms and meditation (冥想) rooms because its cool energy is very calming, restful, peaceful, and spiritual. Blue helps inspire a quiet meditative quality, and color therapy with blue has been found to reduce blood pressure. Blue is also useful to make one to sleep.
Green: Green rooms are very restful but combine with an energizing quality. Green is the color of outdoors, calm and active at the same time. Green brings balance and harmony to a room, and can be used as a calming place for people who are troubled or in need of refreshment.
小題1:What impression can green rooms give to you?
A．Passionate and powerful.B．Refreshing and harmonious.
C．Cool and calming.D．Inspiring and bright.
小題2:If you are going to hold a family gathering, which color of the room can best enhance your atmosphere?
A．Red.B．Orange.C．Blue.D．Green.
小題3:Which of the following statements about color is NOT true?
A．Yellow rooms inspire logical and clear thinking.
B．Blue creates a quiet meditative quality.
C．Different colors affect you emotionally and physically.
D．Red rooms are acceptable when you are in a bad mood.

查看答案和解析>>

同步練習(xí)冊(cè)答案