Every heard the old saying, “An apple a day keeps the doctor away”? It is true! Apples have a lot of nutritional value!
A medium sized apple has only 80 calories (卡). What a great snack choice! Not only is an apple low in calories, they contain absolutely no fat. Thus, eating apples as snacks, as opposed to chips or cakes, will help reduce the risk of cancer.
On top of reducing the risk of cancer, the low sodium (鈉) amounts in apples also help reduce high blood pressure and heart disease. They are cholesterol (膽固醇) free. They are also rich in vitamin A, which helps strengthen vision (視力) along with bone and tooth development.
Now that we know the nutritional facts, let’s take a look at some of the fun facts—That’s right! Apples can be fun, as well as healthy!
If an apple is fresh, it will float on water. Twenty-five percent of an apple is air, thus allowing it to float. Can you imagine bobbing (上下浮動) for apples that sink?
And, did you know that an apple is covered with a natural layer of wax (蠟)? That’s what the peeling (剝下的皮) is. It protects the apple’s high water content, keeping the apple fresh.
Apples are a very important part of a healthy diet, but keep in mind they can be fun. And always remember, if an apple sinks in water, pick another one to bob for!
小題1:How many kinds of facts about apples are mentioned in the passage?
A．Two. B．Three.C．Four. D．Five.
小題2:Apples contain no _________.
A．calories and sodiumB．fat and sodium
C．fat and cholesterolD．cholesterol and sodium
小題3:We learn that an apple is probably _________ if it sinks in water.
A．too high in water contentB．still green
C．sweet and rich in vitaminsD．unsuitable to eat
小題4:Why do apples stay fresh for a long time?
A．Because they contain much water.
B．Because they have peeling with a layer of wax.
C．Because they contain much air.
D．Because they have peeling with nutritional value.

小題1:A
小題2:C
小題3:D
小題4:B
文章介紹了蘋果的兩個方面的事實。營養(yǎng)方面以及一些有趣的事實，幫助人們對蘋果有更好的了解。
小題1:細節(jié)題。文章倒數(shù)第四段。文章提到了the nutritional facts和the fun facts。
小題2:細節(jié)題。根據(jù)第二段they contain absolutely no fat和第三段the low sodium (鈉) amounts in apples also help reduce high blood pressure。
小題3:推理題。倒數(shù)第三段If an apple is fresh, it will float on water.如果蘋果沉入水中，說明它已經(jīng)不新鮮了，不能吃了。
小題4:細節(jié)題。根據(jù)倒數(shù)第二段And, did you know that an apple is covered with a natural layer of wax (蠟)?
練習冊系列答案
相關(guān)習題

科目：高中英語 來源：不詳 題型：閱讀理解

More than one in eight U. S. adults finds it hard to stay away from the Internet for several days at a time and about one in eleven tries to hide his or her online habit, according to a study showed on Tuesday.
The study by researchers from the Stanford University School of Medicine in California found one in eight adults admitted they needed to spend less time online, saying this showed "problematic Interact use" is present in a sizable portion (部分)of the population.
The study involved a nationwide telephone survey of 2,581 respondents in the spring and summer of 2004 with researchers then examining the data and preparing the report which appears in the October issue of CNS Spectrums.
The survey found that 68.9 percent of respondents were regular Internet users and 13.7 percent of the users found it hard to stay offline for several days at a time.
It found 12.4 percent often stayed online longer than intended, more than 12 percent said they saw a need to cut back on their Internet use, and 8.7 percent tried to conceal (隱瞞) "non-essential "Internet use from family, friends and employers.
A smaller number, 8.2 percent, said they use the Internet to escape problems or a bad mood, while 5.9 percent felt their relationships suffered because of too much Internet use.
One report published earlier this year said that 5 percent to 10 percent of the population likely will experience Internet addiction (上癮).
It said signs include a disregard for health or appearance, lack of sleep and reducing physical activities and social communications with others, as well as dry eyes and juries of hands and fingers.
小題1:From Paragraph 2, it tells us _______.
A．how to use the interact is a terrible problem to adults
B．how surfing the net has caused a bad result to people
C．why to throw off the Internet addiction becomes a hot problem
D．why so many adults want to spend less time on the interact
小題2:Those who try to hide their habit of addition to the Interact make up of the respondents.
A．12.4%B．8.7%C．5.9%D．13.7%
小題3:According to the researchers, which statement is true?
A．Online habit of people has been a dangerous problem to society.
B．All of the Interact users have terrible psychological problems to solve.
C．The internet is more harmful to people than good.
D．We have to pay attention to negative effects from the internet.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


Let's face it．No one drinks diet soda for the taste．People drink diet soda in the hope that it will help them lose weight or at least keep them from gaining it．Yet it seems to have exactly the opposite effect, according to a new study．
Researchers from the University of Texas said those who drank two or more diet sodas a day had waist size increases that were six times greater than those who didn't drink diet soda．"What we saw was that the more diet sodas a person drank, the more weight they were likely to gain," said Sharon Fowler．
The study was based on data from 474 participants in a large, ongoing research project, where the participants were followed for nearly l0 years．
While the findings are surprising, they also offer some explanations．
Nutrition expert, Melanie Rogers, who works with overweight patients in New York, has found that when patients are switched from regular to diet soda, they don't lose weight at all．"We weren't seeing weight loss necessarily, and that was confusing to us," said Rogers．
So why would diet soda cause weight gain? No one knows for sure yet, but it could be that people think they can eat more if they drink diet soda, and so over-compensate for the missing calories．
A related study found some sweeteners （甜味劑） raised blood sugar levels in some mice．"Data from this and other potential studies suggest that the promotion of diet sodas and artificial sweeteners may be risky," said Helen P．Hazuda, professor at the University of Texas's school of medicine．"They may be free of calories, but not of consequences．"
小題1:People drink diet soda to _____．
A．enjoy its tasteB．a(chǎn)chieve weight loss
C．stay in fashionD．gain more energy
小題2:The new study suggests that drinking diet soda _____．
A．causes people to become heavierB．helps people to be healthier
C．makes people much thinnerD．offers people more calories
小題3:We can learn from the passage that _____．
A．regular soda makes people lose more weight
B．diet soda does help reduce calories
C．diet soda drinkers tend to eat more food
D．most blood diseases come from diet soda
小題4:The underlined word "They" in the last paragraph probably refers to _____．
A．sweeteners
B．diet soda drinkers and sweetener takers
C．sodas
D．diet sodas and artificial sweeteners

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


The concept of solar power satellites, or SPS, first put forward in the 1960s, is still not widely known by the general public. For example, at many public exhibitions about energy, SPS is not even mentioned. This is mainly because very little money has been spent on SPS research
There are people who claim that SPS is unrealistic － because launch costs are much too high today; or because it is too far away. So why do we believe that it is important to continue to do researches on SPS? The reason is very simple.
Humans are going to need huge amounts of electric power in coming decades. Within 50 years the world population is expected to double, while economic growth will continue around the world, especially in the poorer countries. But existing energy sources already face serious problems. They are limited; they are polluted; they are dangerous. So 50 or 100 years from now, where is our power going to come from? Nobody knows. And so we believe that new large-scale possibilities should be studied further.
We must remember that humans have some choices concerning our future. To some extent we can choose the direction in which our civilization develops. And choices that are made in the coming decades － such as the energy sources that we will or will not use, will have major, long-term meaning for human life on earth. We believe that if research continues to show that SPS is environmentally and economically attractive, SPS will open the door to a much more attractive future for human civilization than any ground-based energy source, and one that the public will support and that young people will find challenging and exciting. Furthermore energy from SPS can be readily used in developing countries, as the SPS 2000 project will show, thus aiding economic development worldwide. In addition, by creating large commercial fund for space engineering, SPS will open the frontier of space to economic development, thus creating a limitless new field for the growth of the world economy.
小題1:Which of the following may be the best title for the passage?
A．The Future Energy－ SPSB．The Concept of SPS
C．Humans and SPSD．Advantages of SPS
小題2:Which of the following statements about SPS is TRUE?
A．The research on SPS started in the 1960s is still not appreciated by the public.
B．The research is showing SPS can benefit environment and economy at present.
C．The energy from SPS is now being used in some developing countries.
D．The public don’t know about SPS because little time is devoted to the research.
小題3:Paragraph 3 mainly talks about ______.
A．the present serious energy problems
B．where to get energy sources in the future
C．the importance of controlling world population
D．the need to explore new energy sources
小題4:The writer’s attitude towards the research can best be summarized by the saying “______”.
A．In time of peace prepare for war
B．Put the cart before the horse
C．One man’s meat is another man’s poison
D．Easier said than done

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


PALO ALTO, California----"Switching off the television may help prevent children from getting fatter---- even if they do not change their diet or increase the amount they exercise," US researchers said last week.
　　A study of 192 third and fourth graders, generally aged eight and nine, found that children who cut the number of hours spent watching television gained nearly two pounds(0.9kg) less over a one-year period than those who did not change their television diet.
　　"The findings are important because they show that weight loss can only be the result of a reduction in television viewing and not any other activity," said Thomas Robinson, a pediatrician(兒科專家) at Stanford University.
　　"American children spend an average of more than four hours per day watching television and videos or playing video games, and rates of childhood being very fat have doubled over the past 20 years," Robinson said.
　　In the study, presented this week to the Pediatric Academic Societies‘ annual meeting in San Francisco, the researchers persuaded about 100 of the students to reduce their television viewing by one-quarter to one-third.
　　Children watching fewer hours of television showed a significantly smaller increase in waist size and had less body fat than other students who continued their normal television viewing, even though neither group ate a special diet or took part in any extra exercise.
　　"One explanation for the weight loss could be the children unstuck to the television may simply have been moving around more and burning off calories," Robinson said.
　　"Another reason might be due to eating fewer meals in front of the television. Some studies have suggested that eating in front of the TV encourages people to eat more," Robinson said.
小題1:The author tries to tell us in the first two paragraphs that ________.
A．children will get fatter if they eat too much
B．children will get thinner if they eat less
C．children will get fatter if they spend less time watching TV
D．children will get fatter if they spend more time watching TV
小題2:According to the passage, the time American children usually spend on watching TV_____.
A．is more than four hours a day
B．is less than four hours a day
C．doubled in the last twenty years
D．is more than on any other activities
小題3:The time children spend on TV viewing every day is suggested to be about
A．six hoursB．eight hoursC．three hoursD．one hour
小題4:Why can watching TV increase kids’ weight according to the passage?
　　A. They usually eat more while watching TV.
　　B. They burn off fewer calories.
C. They change their diet while watching TV.
D. Both A and B.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

What picture do you have of the future? Will life in the future be better, worse of the same as now? What do you hope about the future?
Futurologists predict that life will probably be very different in 2050 in all the fields of activity, from entertainment to technology. First of all, it seems that TV channels will have disappeared by 2050. Instead, people will choose a programme from a menu and a computer will send the programme directly to the television. Today, we can use the World Wide Web to read newspaper stories and see pictures on a computer thousands of kilometers away. By 2050, music, films, programmes, newspapers and books will come to us by computer.
In what concerns the environment, water will have become one of our most serious problems. In many places, agriculture is changing and they are growing fruit and vegetables to export. This uses a lot of water. Demand for water will increase ten times between now and 2050 and there could be serious shortages. Some futurologists predict that water could be the cause of war if we don’t act now.
In transport, cars will run on new, clean fuels and they will go very fast. Cars will have computers to control the speed of the car and there won’t be any accidents. Today, many cars have computers that tell the drivers exactly where they are. By 2050, the computer will control the car and drive it to your destination. On the other hand, space planes will take people half way around the world in two hours. Nowadays, the United States Shuttle can go into space and land on Earth again. By 2050, space planes will fly all over the world and people will fly from Los Angels to Tokyo in just two hours.
In the field of technology, robots will have replaced people in factories. Many factories already use robots. Big companies prefer robots — they do not ask for pay rises or go on strike, and they work 24 hours a day. By 2050, we will see robots everywhere — in factories, schools, offices, hospitals, shops and homes.
In particular, medicine technology will have conquered many diseases. Today, there are electronic devices that connect directly to the brain to help people hear. By 2050, we will be able to help blind and deaf people see again and hear again and scientists will be able to produce clones of people and decide how they look, how they behave and how much intelligence they have. Scientists will be able to do these things — but should they?
小題1:. What may happen in the field of entertainment in the future?
A．The programme made by yourself may be sent to TV.
B．A computer may choose TV programmes for you.
C．You may choose the channels from the menu in a computer.
D．What to broadcast on TV is decided by yourself.
小題2:. After reading Paragraph 3, we can know _______.
A．we should take measures to save water from now on
B．fruits will be more and more expensive
C．people will be short of supplies of vegetables
D．planting will need much less water in the future
小題3:. ________ is the main factor that makes driving much safe in the future
A．Good traffic conditionB．A good knowledge of driving skill
C．The role played by computerD．The use of new fuel in cars
小題4:. The following statements are wrong EXCEPT ________ according to the text.
A．The future world will be controlled by robots.
B．People won’t be blind or deaf in the future.
C．Fewer and fewer workers are needed in the future in factories.
D．Scientists have the right to clone people of different kinds.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Some plants get so hungry they eat flies, spiders, and even small frogs. What’s more amazing is that these plants occur naturally (in special environment) in every state. In fact, they’re found on every continent except Antarctica.
You’ve probably seen a Venus’ flytrap. It’s often sold in museum gift stores, department stores, and even supermarkets. A small plant, it grows 6 to 8 inches tall in a container. At the end of its stalks（莖）are specially modified leaves that act like traps. Inside each trap is a lining of tiny trigger(觸發(fā)) hairs. When an insect lands on them, the trap suddenly shut. Over the course of a week or so, the plant feeds on its catch.
The Venus’ flytrap is just one of more than 500 species of meat-eating plants, says Barry Meyers-Rice, the editor of the International Carnivorous Plant Society’s Newsletter. Note: Despite any science –fiction stories you might have read, no meat-eating plant does any danger to humans.
Dr. Meyers-Rice says a plant is meat-eating, only if it does all four of the following: “attract, kill, digest, and absorb” some forms of insects, including flies, butterflies, and moths. Meat-eating plants look and act like other green plants ---well, most of the time.
All green plants make sugar through a process called photosynthesis(光合作用). Plants use the sugar to make food. What makes “meat-eating” plants different is their bug-catching leaves. They need insects for one reason: nitrogen(氮). Nitrogen is a nutrient that they can’t obtain any other way. Why almost all green plants on our planet get nitrogen from the soil “Meat-eating” plants can’t. They live in places where nutrients are hard or almost impossible to get from the soil because of its acidity(酸度). So they’ve come to rely on getting nitrogen from insects and small animals. In fact, nutrient-rich soil is poisonous to “meat-eating” plants. Never fertilize(施肥)them! But don’t worry, either, if they never seem to catch any insects. They can survive, but they’ll grow very slowly.
小題1:According to the passage, carnivorous plants       .
A．only grow in wild fieldB．a(chǎn)re rare to see
C．a(chǎn)re as common as fliesD．cannot grow on Antarctica
小題2:Venus’ flytrap preys on insects by          .
A．its numerous long stalksB．a(chǎn) container where it grows
C．its insect-catching leaves D．the lining of tiny trigger hairs
小題3:We can conclude from the third paragraph that_____.
A．carnivorous plants are dangerous
B．carnivorous plants are fictional
C．carnivorous plants occasionally eat books
D．carnivorous plants are harmless to humans
小題4:In the eyes of the author, which of the following statements is TRUE?
A．Carnivorous plants cannot grow in acid soil.
B．Carnivorous plants can grow in nutrient-poor soil.
C．Carnivorous plants will die if they cannot catch any insects
D．Carnivorous plants can get nitrogen from nutrient-rich soil.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

完形填空（共20小題；每小題1分，滿分20分）
閱讀下面短文，掌握其大意，然后從1～20各題所給的四個選項（A、B、C或D）中，選出最佳選項，并在答題卡上將該項涂黑。
Butterfly’s wings
One day a small opening appeared on a cocoon(繭), a man sat and watched for the butterfly for several hours as it was struggling to  1  its body through that little hole. Then it seemed to stop making any progress. It appeared as if it had gotten  2  it could and it could go no further. So the man decided to  3  the butterfly: he took a pair of scissors and  4  the remaining part of the cocoon. The butterfly then  5  easily.
But it has a swollen(腫脹的) body and  6  wings. The man continued to  7  the butterfly because he expected that, at any moment, the  8  would enlarge and expand to be able to support the body, which would  9 in time. Neither happened!  10,  the butterfly spent the rest of its life  11 around with a swollen body and small, shriveled(褶皺的) wings. It  12  was able to fly. What the man did in his  13 and haste(匆忙)did no good to the butterfly. He didn’t know the  14  cocoon and the struggle  15  for the butterfly to get through the tiny  16 were the natural way of forcing fluid from the body of the butterfly into its wings  17  it would be ready for flight once it achieved its  18  from the cocoon.
Sometimes the  19  is exactly what we need in our life. If we are allowed to go through our life without any  20, it would not be a good thing to us. We would not be as strong as what we could have been.
小題1:
A．build B．forceC．formD．destroy
小題2:
A．a(chǎn)s far asB．a(chǎn)s long asC．a(chǎn)s soon asD．a(chǎn)s quick as
小題3:
A．seize B．leaveC．bringD．help
小題4:
A．took offB．made upC．cut offD．picked up
小題5:
A．spread overB．came outC．stayed in D．flew away
小題6:
A．hardB．strong C．smallD．large
小題7:
A．watchB．look forC．look afterD．follow
小題8:
A．butterfly B．wings C．cocoonD．scissors
小題9:
A．disappear B．enlargeC．lose D．contract
小題10:
A．LuckilyB．Probably C．In allD．In fact
小題11:
A．crawling B．a(chǎn)pproachingC．running D．wandering
小題12:
A．ever B．seldomC．a(chǎn)lways D．never
小題13:
A．fearB．kindnessC．evil D．confidence
小題14:
A．restricting B．loose C．soft D．little
小題15:
A．prepared B．wanted C．a(chǎn)llowed D．required
小題16:
A．place B．room C．opening D．space
小題17:
A．even if B．otherwise C．whenD．so that
小題18:
A．life B．success C．progress D．freedom
小題19:
A．courage B．struggle C．wisdom D．strength
小題20:
A．fun B．friends C．obstacles D．a(chǎn)chievement

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

完形填空（共20小題，每小題1分，滿分20分）
閱讀下面短文，掌握其大意，然后從36 - 55各題所給的四個選項（Ａ、Ｂ、Ｃ和Ｄ）中，選出最佳選項，并填寫到答題紙表格。
One Saturday afternoon, my daughter Alice asked me, “Are all people the same even if they are different in color?”
I thought for a minute, and then I said, “I’ll explain,   41  you can just wait until we make a quick   42  at the grocery store. I have something   43  to show you. ”
At the grocery store, we    44   some apples --- red, green and yellow ones. Back home, I told Alice, “It’s time to   45  your question.” I put one apple of each   46   on the table. Then I looked at Alice, who had a   47  look on her face.  
“People are like apples. They come in all   48 colors, shapes and sizes. On the    49 , some of the apples may not  50  look as the others. ” As I was talking, Alice was    51  each one carefully.  
Then, I took each of the apples and peeled（削皮）them,  52  them back on the table, but   53  a different place.  
“Okay, Alice, tell me which is which.”
She said, “I   54  tell. They all look the same now. ” “Take a bite of   55 . See if that helps you   56  which one is which. ”
She took   57 , and then a huge smile came across her face. “People are   58  like apples! They are all different, but once you _ 59  the outside, they’re pretty much the same on the inside. ”
She totally   60  it. I didn’t need to say or do anything else.  
小題1:
A．a(chǎn)lthoughB．soC．becauseD．if
小題2:
A．stopB．startC．turnD．stay
小題3:
A．expressiveB．encouragingC．informativeD．interesting
小題4:
A．boughtB．countedC．sawD．collected
小題5:
A．checkB．mentionC．a(chǎn)nswerD．improve
小題6:
A．sizeB．typeC．shapeD．class
小題7:
A．worriedB．satisfiedC．proudD．curious
小題8:
A．ordinaryB．normalC．differentD．regular
小題9:
A．outsideB．wholeC．tableD．inside
小題10:
A．stillB．evenC．onlyD．ever
小題11:
A．examiningB．measuringC．drawingD．packing
小題12:
A．keepingB．placingC．pullingD．giving
小題13:
A．onB．towardC．forD．in
小題14:
A．mustn’tB．can’tC．shouldn’tD．needn’t
小題15:
A．each oneB．each otherC．the otherD．one another
小題16:
A．a(chǎn)dmitB．considerC．decideD．believe
小題17:
A．big bitesB．deep breathsC．a(chǎn) firm holdD．close look
小題18:
A．justB．a(chǎn)lwaysC．merelyD．seldom
小題19:
A．put awayB．get downC．hand outD．take off
小題20:
A．madeB．tookC．gotD．did

查看答案和解析>>

同步練習冊答案