The weather is getting hotter. You are thirsty playing basketball or riding home from school. A cold drink may be just the thing. But be careful what you are drinking. Something that looks cool may not be good for your health.
There are plenty of "energy drinks" on the market. Most of them have beautiful colors and cool names. The lists on them tell you they are helpful to your health. Sounds great!
But after a careful check you may find that most energy drinks have lots of caffeine (咖啡因) in them. These drinks are especially aimed at young people, students, busy people and sports players. Makers sometimes say their drinks make you better at sports and can keep you awake. But be careful not to drink too much.
Caffeine makes your heart beat fast. Because of this, the International Olympic Committee has limited( 限制) its use. Caffeine in most energy drinks is at least as strong as that in a cup of coffee or tea. Possible health dangers have something to do with energy drinks. Just one box of energy drink can make you nervous, have difficulty sleeping and can even cause heart problems. Scientists say that teenagers should be discouraged from taking drinks with a lot of caffeine in them.Many people like drinking energy drinks because of the following EXCEPT that ________.
| A．they have beautiful colors and cool names |
| B．they have lots of caffeine |
| C．they can keep them awake and better at sports |
| D．they are said to be helpful to health |
The main reason for people not to drink too much energy drinks is that they may cause _____.
| A．heart problems | B．nervousness |
| C．sleeping difficulty | D．possible health dangers |
The underlined word "discouraged" can be replaced(替换) with "________".
| A．encouraged | B．stopped | C．helped | D．disliked |
From the passage we can know that _________.
| A．advertisements are important in getting people to buy energy drinks |
| B．energy drinks are helpful to teenagers' study |
| C．sports players need to drink a lot of energy drinks |
| D．energy drinks are especially aimed at teenagers |
Which of the following can be the best title(标题) of the passage?
| A．What's the Use of Energy Drinks? |
| B．Who Can Drink Energy Drinks |
| C．What's That in Energy Drinks? |
| D．Why Can't We Buy Energy Drinks? |
Summer Science Class registration(注册) begins on March 8! If you are interested in science，the environment，or conservation and you are in grades 7－12，sign up soon for Black Rock Forest Consortium's Summer Science Class program.You can download the Summer Science Classes 2013 brochure(手册) here.It is easy to register；just call 8455344517 or click here.
Twelveweeklong courses in the natural sciences and the arts are offered at Black Rock Forest in Cornwall from July 15 through August 9.Two more classes are offered with site partners，including “The Art of Scientific Observation，” hosted jointly by Black Rock Forest Consortium and Storm King Art Center，one of the world's leading sculpture parks，and “A Nautical Expedition，” hosted jointly by the Consortium and the Constitution Marsh Audubon Center.
We are delighted to announce two special “away” classes that are part of the Summer Science Class program this year: an “Adirondack EcoAdventure” beginning August 11，and “Conservation Biology in Florida，” beginning June 23 and featuring field work on the Gulf Coast in cooperation with the University of Florida's Seahorse Key Marine Biological Laboratory.For more information on the Summer Science Class program，please read our press release.
Black Rock Forest Consortium is a nonprofit organization founded in 1989 to advance scientific understanding of the natural world through research，education and conservation programs.If you want to be a member of Summer Science Class，you should ________．
| A．visit Black Rock Forest first | B．download their brochure |
| C．call a phone 8455344517 | D．register before March 8 |
Summer Science Class's courses are________．
| A．only about science subjects | B．cooperated by several organizations |
| C．from July 15 through August 9 | D．hosted by the world's leading professors |
Where can you find the article?
| A．From a web site. | B．From a traveling brochure. |
| C．From a novel book. | D．From one famous magazine. |
Ereading and ebooks are slowly conquering the world.Compared to traditional paper books，ebooks in some schools and universities attract more interest because the information flow seems much easier to manage and comes in a greatly higher quantity.
Japan is known for the reformminded attitude towards the gadget(精巧装置) world and for the fact that it is one of the first countries that encouraged in the educational system the emailing of homework.
The digital textbook looks like the logical step in the world of learning.It is natural but it is also completely untraditional.
The plan of the largest publishing companies to get in line with the trend is to save a large quantity of paper and make the kids become interested in learning using a cool gadget.Many USA universities and colleges have made students be used to the procedure of downloading the courses and of course the procedure involves interactive software and also the chance of using the computer.
The traditional education system is still unwilling when it comes to giving up books.The standard approach of information taught out of a book and Shakespeare read out of an old school novel makes studying English as traditional as it can be.
In a world where kids would rather see the movie than read a book，the digital age has brought along a completely different flavor to reading.Bringing that flavor in school will make teaching a greener and also a completely different matter.Why are ebooks so popular in the world?
| A．It's cheap to buy. | B．It's effective to use. |
| C．It's convenient to bring. | D．It's the latest fashion. |
Which of the following words can best take the place of the word “reformminded” in the second paragraph?
| A．Oldfashioned. | B．Aggressive. |
| C．Rejecting. | D．Progressive. |
In America，the students are encouraged to________．
| A．apply the procedure of downloading the courses |
| B．communicate with their teachers using computer |
| C．research some interactive software for their studies |
| D．do their homework in computer instead of in paper |
What's the author's attitude to the digital textbooks?
| A．Being against. | B．Being for. |
| C．Not mentioned. | D．Being neutral. |
I do a lot of hiking.And I can step out of my house and within minutes reach a beautiful forest where I walk for exercise every day.I see many photography subjects such as parrots，snakes，hares，big trees and flowers.There are so many different flowers around my place that once I decided to see how many types I could count in a onehourlong walk，and I counted over 100.
Needless to say，as a keen amateur photographer，I always take a camera with me.I have three favorites: a Pentax Optio RZ10，a Sony Alpha 390 and a Panasonic Lumix FZ100.I mostly take the Pentax pocket camera with me.This Pentax pocket camera takes images as good as those from much more expensive Single Lens(镜头)Reflex cameras.It allows you to get to just 1 cm from the subject，and these images are of astonishing clarity(清楚)．I can stick the camera right into a flower.And the photo shows fantastic details.
The Pentax is also good at taking landscapes.The color is natural and price again the details even of distant objects are great.Sometimes，even when I have one of my other cameras with me，I still just use the Pentax pocket camera.About half of all the images on my website were taken with the Pentax.
The Pentax takes quality images in poor light and the zoom works well.You have to work hard to get a blurry(模糊的)shot.This is an especially good feature at parties and gatherings.You get fantastic photos of people.You don't have to wait for them to keep still.
Keep this camera in your pocket or in the car.It takes up little room；it's light and you'll never regret it!Why does the author walk through the beautiful forest every day?
| A．He takes exercise to keep fit. | B．He goes there to count flowers. |
| C．He takes photos in the forest. | D．He goes to see photography subjects. |
Which of the following cameras did the author use most?
| A．The Sony Alpha 390. | B．The Pentax Optio RZ10. |
| C．The Panasonic Lumix FZ100. | D．The Single Lens Reflex camera. |
We can infer from the passage that________．
| A．the author is a professional photographer |
| B．the author took blurry photos at gatherings |
| C．the author has put half of his photos on his website |
| D．it is good to take a quick photo with the Pentax |
In the last paragraph the author advised us to________．
| A．buy a very small camera | B．take photos of our friends |
| C．keep a Pentax at hand | D．take photos wherever we are |
Many people are concerned about the state of the earth in terms of its energy supplies and changing climate.The clear message broadcast by all responsible governments is that every person has a part to play.Here are some detailed instructions.
1．Prevent pollution by disposing(清理) of all your litter and waste in the correct，legal way，such as using onstreet waste receptacles(容器) when you are out and about，or putting it in your domestic rubbish can when you're at home.Follow local procedures for normal waste disposal.Contact your local authority for advice on disposing of unusual waste items，such as paint and computer parts.
2．Recycle all materials that can be processed by your local authority.Place plastics，metals，paper and glass in the correct collection receptacles.Donate unwanted items to the charities that are happy to accept good condition clothing，furniture and even automobiles.
3．Look after reserves of water by making sure you turn off the tap after use and by repairing leaks(渗漏) and drips.Purchase waterefficient appliances.Take showers instead of baths.Gather rainwater for garden use and use your lawn sprinkler less often or not at all.
4．Save energy by choosing Energy Star products.Turn these off，as well as lights，when you don't need them to be on.Use air condition and heating less often.Make sure your home is insulated correctly to maintain a steady temperature.
5．Reduce the amount of the material you use.Print emails occasionally or not at all rather than printing them every time.You buy new things when you actually need them rather than on a whim(心血来潮)．Organize a car pool with friends to use fuel efficiently.
In a word，we should try to use the world's resources efficiently to protect the environment.When you have a walk in the park，you________．
| A．can throw away the waste freely |
| B．had better take along the waste |
| C．can throw the waste into rubbish can |
| D．should put the waste in your domestic rubbish can |
Which can't be recycled according to the passage?
| A．Metal. | B．Glass. |
| C．Automobiles. | D．Paint. |
Why should you take showers instead of baths?
| A．Because it is comfortable. | B．Because it can save lots water. |
| C．Because it can gather water. | D．Because it is convenient to use. |
What's the main idea of the whole passage?
| A．How to protect the environment? |
| B．Reduce the amount of the material you use. |
| C．Some instructions in energy supplies. |
| D．Why should each play a part in saving energy? |
Mothers and daughters go through so much—yet when was the last time a mother and daughter sat down to write a book together about it all? Perri Klass and her mother, Sheila Solomon Klass, both gifted professional writers, prove to be ideal co－writers as they examine their decades of motherhood, daughterhood, and the wonderful ways their lives have overlapped(重叠)．
Perri notes with amazement how closely her own life has mirrored her mother's: both have full－time careers; both have published books, articles, and stories; each has three children; they both love to read.They also love to travel—in fact, they often take trips together.But in truth, the harder they look at their lives, the more they acknowledge their big differences in circumstance and basic nature.
A child of the Depression(大萧条), Sheila was raised in Brooklyn by parents who considered education a luxury for girls.Starting with her college education, she has fought for everything she's ever accomplished.Perri, on the other hand, grew up privileged in the New Jersey suburbs of the 1960s and 1970s.For Sheila, wasting time or money is a crime, and luxury is unthinkable while Perri enjoys the occasional small luxury, but has not been successful at trying to persuade her mother into enjoying even the tiniest thing she likes.
Each writing in her own unmistakable voice, Perri and Sheila take turns exploring the joys and pains, the love and bitterness, the minor troubles and lasting respect that have always bonded them together.Sheila describes the adventure of giving birth to Perri in a tiny town in Trinidad where her husband was doing research fieldwork.Perri admits that she can't sort out all the mess in the households, even though she knows it drives her mother crazy.Together they compare thoughts on bringing up children and working, admit long－hidden sorrows, and enjoy precious memories.
Looking deep into the lives they have lived separately and together, Perri and Sheila tell their mother－daughter story with honesty, humor, enthusiasm, and admiration for each other.A written account in two voices，Every Mother Is a Daughter is a duet(二重奏) that produces a deep, strong sound with the experiences that all mothers and daughters will recognize.Why does Perri think that her own life has mirrored her mother's?
| A．They both have gone through difficult times. |
| B．They have strong emotional ties with each other. |
| C．They have the same joys and pains, and love and bitterness. |
| D．They both have experiences as daughter, mother and writer. |
The word “luxury” in Paragraph 3 means________.
| A．something rare but not pleasant |
| B．something that cannot be imagined |
| C．something expensive but not necessary |
| D．something that can only be enjoyed by boys |
What is Paragraph 4 mainly about?
| A．The content of the book. |
| B．The purpose of the book. |
| C．The influence of the book. |
| D．The writing style of the book. |
How are women's lives explored in this book?
| A．In a musical form. |
| B．Through field research. |
| C．With unique writing skills. |
| D．From different points of view. |