You may never connect the words “good” and “eco-friendly”with plastic.It’s time to do a rethink on that as we say hello to hemp(大麻)plastic.Traditionally,plastics have been made from petrochemicals,which are mainly poisonous.Plants,on the other hand,are also a source of cellulose(纖維素),which can be used to make biodegradable (生物所能分解的)plastic.As hemp happens to be one of the richest sources of cellulose,it is only natural that scientists will support its use,considering its ecological benefits.
Hemp plastic is biodegradable and recyclable.If you thought being eco-friendly reduced its solidity,you couldn’t be more wrong.The hard level of hemp plastic can match that of regular plastic.Hemp plastic is resistant to heat;however,the most outstanding feature of a few varieties of hemp plastic is that they are flame resistant too.Finally,if Henry Ford could imagine creating a car with this material,we can perhaps believe that it indeed is“ten times stronger than steel”.
It is a pity that with so many useful qualities,we don’t see hemp plastic being used in our everyday life,the way it ought to be.Hemp plastic can easily take the place of the exiting plastic in products like cell phone chargers(充電器),laptop covers,etc.Currently,hemp plastic is being used to produce audio(音響設(shè)備),video,toys,automobile parts and packaging materials.
Hemp fiber is one of the strongest natural fibers known to us.As scientists keep looking for ways to solve the ecological damage that traditional plastics have caused,here is a material that can be produced to be 100% biodegradable.Hemp plastic is known to be several times durable as compared to polypropylene(聚丙烯)plastic,and it comes without all the health and safety threats,It really has long useful life.
Plastics keep reminding us of the damage that we have done to our planet,all under the excuse of convenience.As hemp products have become a new choice into our daily life,Please take a green plan now and make your effort to protect the environment.
小題1:Plastics produced in the traditional way are______.
A．harmfulB．made from plants
C．good and eco-friendlyD．biodegradable
小題2:According to Para.2,hemp plastic_____.
A．is all resistant to flameB．doesn’t have enough solidity
C．will take the place of steelD．can be used again after being processed
小題3:What does the underlined word“durable”mean in Para.4?
A．Very useful of important.
B．Costing little money or less money.
C．Staying in good condition for a long time.
D．Existing in large numbers or in many places.
小題4:Which aspect of hemp plastic isn’t mentioned in the passage?
A．Features.B．Production costC．Applications.D．Advantages.
小題5:What can we know from the passage?
A．Using hemp plastic is inconvenient.
B．People haven’t made the most of hemp.
C．Hemp fiber is a kind of strong man-made fiber.
D．Scientists have already known how to solve ecological damage.

小題1:A
小題2:D
小題3:C
小題4:B
小題5:B

試題分析：
小題1:這是細(xì)節(jié)理解題。根據(jù)Traditionally,plastics have been made from petrochemicals,which are mainly poisonous.故選A。
小題2:這是細(xì)節(jié)理解題。根據(jù)the most outstanding feature of a few varieties of hemp plastic is that they are flame resistant too.并非所有的都耐火，故排除A；根據(jù)If you thought being eco-friendly reduced its solidity,you couldn’t be more wrong.故排除B；文中只是說(shuō)了它的硬度有時(shí)比鋼還硬，但并沒(méi)有說(shuō)它要代替鋼，故排除C；根據(jù)Hemp plastic is biodegradable and recyclable.故選D。
小題3:這是細(xì)節(jié)理解題。根據(jù)it comes without all the health and safety threats,It really has long useful life.這里說(shuō)的是Hemp plastic比polypropylene(聚丙烯)plastic的壽命長(zhǎng)。故選C
小題4:這是細(xì)節(jié)理解題。根據(jù)the most outstanding feature of a few varieties of hemp plastic is that they are flame resistant too.故排除A；根據(jù)第三段可以排除C；根據(jù)As hemp happens to be one of the richest sources of cellulose,it is only natural that scientists will support its use,considering its ecological benefits.及全文來(lái)看，一直在說(shuō)Hemp plastic的好處，故排除D，所以應(yīng)選B。
小題5:這是細(xì)節(jié)理解題。根據(jù)As hemp happens to be one of the richest sources of cellulose,it is only natural that scientists will support its use,considering its ecological benefits.及全文來(lái)看，Hemp plastic還沒(méi)有廣泛應(yīng)用到日常生活中。故選B
點(diǎn)評(píng)：本文介紹了麻塑料的利用價(jià)值，它對(duì)于人們的生活和生產(chǎn)都能帶來(lái)益處，對(duì)于人們的生存環(huán)境也是有好處的。這樣的說(shuō)明性文章一般都主旨鮮明,很容易在文中找到答案。做題時(shí)要注意文章的首段和每一段的首句或尾句，因?yàn)樗鼈兺褪俏恼碌闹黝}句。
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

Hi Hongbo,
I’m so glad to read about the changes talking place in your city. It’s really good news that you can travel by subway in Xi’an, though there’s only one line there. Here in London we have twelve lines. By the way, we don’t use the word “subway” here. It’s American English. We call it “the Underground”, instead.
The London Underground is very famous. It’s famous for several reasons. First of all, part of the underground railway today is the oldest in the world, which opened in 1863. Secondly, the London Underground is also the first line to have electric trains, in 1890. Thirdly but not the last, the London Underground is the second largest metro system in the world, after the Shanghai Metro. There are 270 stations in the Underground and it has 402 kilometres of tracks(軌道). What’s more, the city of London itself helps make the transportation system famous! I’ve got a few photos to help you build a clear picture of the Underground in my city. They are together with this mail.
In your email, you also said workers were building more lines. I’m sure your city is developing fast. Maybe you can send me a few photos of your city today. I really want to see the changes taking place there. I’m happy for you to live there in an ancient city with such a new look!
So much for now. I’ll write soon again. Best wishes!
小題1:Where is the writer from？
A．From LondonB．From ShanghaiC．From Xi’an.D．From New York
小題2:The second paragraph mainly tells us        ?
A．when the first subway was opened in the world.
B．when the London Underground first used electric trains
C．why the London Underground is the oldest subway in the world.
D．why the London Underground is famous in the world
小題3:In the email, the words “subway”, “underground”, and “metro” mean   .
A．three different thingsB．two different things
C．a(chǎn)lmost the same thingD．nothing like each other
小題4:What does the writer want Hongbo to do?
A．To buy a good book about Xi’an for him.
B．To send him a few photos of Xi’an.
C．To post him some postcards of Xi’an.
D．To tell him more about Xi’an subway.

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

My elder brother Steve, in the absence of my father who died when I was six, gave me important lessons in values（價(jià)值觀念） that helped me grow into an adult.
Steve taught me to face the results of my behavior. Once when I returned in tears from a Saturday baseball game, it was Steve who asked me what happened. When I explained that my baseball had soared through Mrs. Holt’s basement window, breaking the glass with a crash, Steve encouraged me to admit to her. Although my knees knocked as I explained to Mrs. Holt, I offered to pay for the window from my pocket money if she would return my ball.
I also learned from Steve that personal property（財(cái)產(chǎn)） is a sacred（神圣的） thing. After I found a shiny silver pen in my fifth-grade classroom, I wanted to keep it, but Steve explained that it might be important to someone else in spite of the fact that it had little value. He reminded me of how much I’d hate to lose to someone else the small dog my father made with a piece of cheap wood. I returned the pen to my teacher, Mrs. David, and still remembered the smell of her perfume (香水) as she patted me on the shoulder.
Yet of all the instructions Steve gave me, his respect for life is the most unforgetful in my mind. When I was twelve I killed an old brown sparrow(麻雀)in the yard with a BB gun. Excited, I screamed at Steve to come and take a look. I shall never forget the way he stood for a long moment and stared at the bird on the ground. Then in a dead, quiet voice, he asked, “Did it hurt you first, Mark?” I didn’t know what to answer. He continued with his eyes firm, “The only time you should even think of hurting a living thing is when it hurts you first, and then you think a long, long time.” I really felt terrible then, but that moment stands out as the most important lesson my brother taught me.
小題1:What is the passage mainly about?
A．The relationship between Mark and Steve.
B．The important lessons Mark learned in school.
C．Steve’s important role in Mark’s growth stage.
D．Mark and Steve’s respect for living things.
小題2:When Mark admitted his mistakes to Mrs. Holt, he ____.
A．was surprised B．felt frightened
C．was light-heartedD．cried before her
小題3:From the third paragraph, we can know that Mark _____.
A．had a shiny silver pen B．respected his teacher
C．hated his father very much D．once owned a small wooden dog
小題4:To Mark, which is the most important lesson Steve taught him?
A．Respecting life.B．Being responsible for one’s behavior.
C．Being honest.D．Respecting others’ property

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

As you grow rapidly through your teenage years, you will experience a lot of changes. The changes may seem difficult.   71  . Don’t panic! You will deal successfully with them! You are a young adult now!
With more responsibility, you will find more freedom to make your own choices. This is a time to be well informed about making choices. In this way you can make healthy balanced decisions.   72 You may already know your career path or you may have no idea at all what you want to do. Both situations are fine! Work hard and the right opportunity will present itself to you.
Young adulthood means greater freedom and more choices.   73  But try not to shut your family out of your life. You should learn to think of others even though you are old enough to look after yourself.
It is also perfectly natural at this time for you to spend more time with your friends than your family   74 A true friend will stand by you no matter what happens.
This period is a part of the life cycle. These are some people who will be with you throughout life’s journey. There will be some people with whom you part and go separate ways. Leaving school can be hard. The reality is that you may not even see all of your classmates again.
You are a young adult. It is your life. No one can live it for you.   75 So making the right choices will be important to you. Life is for living. Enjoy your life wisely!
A．Choose your friends wisely.
B．They will help shape the future.
C．They may seem to happen quickly.
D．You will probably want to be independent.
E. You may appreciate what you have in your own life.
F. The choices that you make from now on will be your choices.
G. Your family has been with you since you came into this world

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


Uncertainty spreads through our lives so thoroughly that it dominates our language. Our everyday speech is made up in large part of words like probably, many, soon, great, little. What do these words mean?Such verbal expression is not necessarily to be criticized. Indeed, it has a value just because it allows us to express judgments when a precise quantitative statement is out of the question.
We have been trying to pin down by experiments what people mean by these expressions in specific contexts, and how the meanings change with age. For instance, a subject is told “There are many trees in the park” and is asked to say what number the word many mean to him. Or a child is invited to take “some” sweets from a bowl and we then count how many he has taken. We compare the number he takes when he is alone with the number when one or more other children are present and are to take some sweets after him, or with the number he takes when told to give “some” sweets to another child.
First, we find that the number depends, of course, on the items involved. To most people some friends means about five, while some trees means about twenty. However, unrelated areas sometimes show parallel values. For instance, the language of probability seems to mean about the same thing in predictions about the weather and about politics: the expression “is certain to” (rain, or be elected) signifies to the average person about a 70 percent chance; “is likely to”, about a 60 percent chance; “probably will” about 55 percent.
Secondly, the size of the population of items influences the value assigned to an expression. Thus, if we tell a subject to take “a few” or “ a lot of” glass balls from a box, he will take more if the box contains a large number of glass balls than if it has a small number. But not proportionately more: if we increase the number of glass balls eight times, the subject takes only half as large a percentage of the total.
Thirdly, there is a marked change with age. Among children between six and fourteen years old, the older the child, the fewer glass balls he will take. But the difference between a lot and a few widens with age. This age effect is so consistent that it might be used as a test of intelligence.
小題1: What’s the right attitude towards the words like probably, many, soon?
A．They are inaccurate and we should avoid them.
B．They are necessary since we cannot be always precise.
C．They should be criticized because there are too many of them.
D．Their value is not yet clear since we don’t know their meaning.
小題2: Why do we do experiments with the words “many” and “some”?
A．To prove people are insensitive to these words.
B．To prove the words dominate our everyday speech.
C．To find out how the meanings vary with age and contexts.
D．To find out whether the words can mean a precise quantity.
小題3: Which of the expressions means a larger chance in weather broadcast?
A．PossibleB．ProbableC．Be likely toD．Be certain to
小題4: Which of the following will least definitely influence the number of items a kid takes out of a box when he is invited to take “some”?
A．Whether the quantity of items is large or small.
B．Whether the items are candies or toys.
C．Whether the kid is a toddler or a youngster.
D．Whether the kid is alone or accompanied by other children.
小題5: What will tell us about the intelligence of a child?
A．The consistency of picking up a certain glass ball.
B．How many glass balls he will take when he’s asked to.
C．The difference between a lot and a few when he takes glass balls.
D．Whether there are marked changes in his first pick and second one.

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

Now some women are spending a weekend at Mother’s Camp（營(yíng)地）. There, husbands and children are not allowed. Why would a woman want to take a vacation without her family? Some women say they need time to be alone.
At Mother’s Camp a woman has room to herself. She can sleep, read or watch TV, and no one will bother her. No children will ask,“Mom, what’s for dinner?” No husband will say, “Oh, dear, I can’t find any clean socks.”In fact almost 50% of women in the United States work outside the home. Many of them work full-time and then come home to a second job-taking care of their homes and families. These working women say one of their biggest problems is housework.
In the United States, working wives do about 75% of the housework. Many of their husbands say they want to help. But then they burn the rice or they can’t find the pans. They ask so many questions that their wives decide it is easier to do the job themselves.
Some women go to Mother’s Camp just to get a break from housework. For two days they don’t cook, they don’t clean, they don’t look after their children and husbands. What do they do? They enjoy warm, sunny weather, walking, swimming or boating in a clear blue lake and sing songs around the campfire. They relax away from home. They have a really wonderful vacation at Mother’s Camp.   
小題1:From this passage we can see in the United States.
A．women want to work outside the home
B．working wives do most of the housework
C．husbands do as much housework as their wives
D．women do not like to stay at home with their families
小題2:At Mother’s Camp, women can’t                      .
A．watch TVB．read newspapers
C．swim in the lakeD．bring their husbands and children
小題3:Why would some mothers like to be alone? Because                   .
A．they don’t like their husbands and childrenB．they have to work full-time
C．they are too busy to relax themselvesD．they want a new life
小題4:______________  is one of the biggest troubles for working wives in the United States.
A．HouseworkB．Working outside the home
C．When to take a vacationD．Looking after their children
小題5:What’s the best title（標(biāo)題）for this passage?
A．Busy Working MothersB．The US family
C．Mothers Relax Away from HomeD．Mothers in the US

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

The First Day at My Senior High School
Today is September1,2012.It is the first day of my senior high school.Everything in the school is new to me.
The school is very modern. The gate of the school is artistic(藝術(shù)的). When you go through the main gate,you can see a high stadium (體育場(chǎng))on the left side of the road, which has a 400-meter runaway and a soccer field with green grass. Buildings are tall and beautiful. The library is the most attractive building on the right side of the main road. There are many green trees and colorful flowers on both sides of the roads. The classrooms are amazing. They are big, clean and bright. In each classroom, there is a computer and a big screen,through which our teachers can show us tests,photos, and so on.
In my class, there are 60 students. We don’t know each other, but we are all friendly.Everyone has a smile on his/her face. When we meet, we always say “Hello”to each other.
Most of our teachers are young. Some students think young teachers cannot teach well, but I do not think so. In my opinion,young teachers are very energetic and easy to make friends with. What’s more, they may have a lot of new teaching methods.
I love my new school very much. I hope, in my new school, I can learn more from my teachers and make progress together with my classmates.
小題1:The writer’s new school is a very _________one.  
A．strangeB．modernC．a(chǎn)rtisticD．a(chǎn)mazing
小題2:according to the passage,which of the following is NOT true?　
A．Green trees and colorful flowers are planted on either side of the roads.
B．The library is on the right of the main road, while the stadium is on the left.　
C．The soccer field is outside of the school yard.
D．The classrooms are big, clean and bright.
小題3:The writer thinks differently from other students about _________in the school.
A．teaching methodsB．classesC．young teachersD．buildings
小題4:From the passage, we can know that _______.
A．The writer’s new school is the best school.
B．All students in this school like old teachers.　
C．Students say Hello to each other to introduce themselves.
D．The writer loves his new school at first sight.

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

My mother often asked me, “what is the most important part of the body?” Through the years I would guess at  46 I thought was the correct answer. When I was younger, I thought sound was very important to us as humans, so I said, “My   47 , Mommy.”  She said, “No. Many people are deaf. But you   48  thinking about it and I will ask you again soon.”
Then last year, my Grandpa   49 . Everybody was hurt. Everybody was crying. My Mom looked at me when it was our   50  to say our final goodbye to grandpa. She asked me,  “Do you know the most important body part yet, my dear?”  I was shocked   51  she asked me this now. I always thought this was a game between her and me. She saw the confusion(迷惑) on my face and told me, “This   52  is very important. It shows that you have   53  lived your life”. I saw her eyes well up with tears. She said, “My dear, the most important body part is your shoulder.” I asked,  “Is it because it holds up your head?”
She replied, “No, it is because it can hold the head of a friend or loved one when they   54. Everybody needs a shoulder to cry on sometime in life, my dear. I only hope that you have enough love and  55  that you will have a shoulder to cry on when you need it.”
小題1:
A．ifB．whatC．thatD．whether
小題2:
A．earsB．eyesC．handsD．feet
小題3:
A．feelB．stopC．keepD．forget
小題4:
A．worriedB．visitedC．diedD．came
小題5:
A．needB．chanceC．dutyD．turn
小題6:
A．whenB．unlessC．beforeD．but
小題7:
A．experienceB．a(chǎn)nswerC．problemD．question
小題8:
A．easilyB．reallyC．carefullyD．especially
小題9:
A．sleepB．thinkC．laughD．cry
小題10:
A．visitorsB．friendsC．classmatesD．teachers

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

Selina, Michael, Tony and Sam enjoy listening to the radio. Read the following description and help them make proper choices.
57. ________ Tony, a sports lover, always cares much about sports events. He dreams to be a sports reporter after graduation.
58. ________ Michael is a university student. He likes music very much, especially rock and pop music.
59. ________ Sam is a teacher. He is one of the most popular teachers, because he always likes to tell his students what is going on world widely. So he needs to know global events of all kinds.
60. ________ Selina has three children. They are very lovely. They are interested in drama, reading and watching TV as well.
A. BBC Radio 3
BBC 3 broadcasts radio entertainment all day, every day. Hear the original radio comedies which became TV hits and the all-time comedy greats. There’s drama as well as reading of favourite books and a daily show just for kids.
B. BBC Radio 2
BBC Radio 2 Music celebrates the very best in music. It’s a station for people who are passionate about rock and pop music. The station plays a rich mix of modern and classic artists and is devoted to the success of new rising bands.
C. BBC Radio 1
Devoted to giving you comments on news and sports events. Special rights on all the major sports events including up to the minute news and debates.
D. BBC World Service
World Service gets to the heart of global events. Programmes cover news to science and the environment to arts, religion and music of all kinds.

查看答案和解析>>

同步練習(xí)冊(cè)答案