I bought this skirt in one of the c _______ stores in our city.

In November of 2007, NBC Universal launched its first official Green Week. Throughout the week, NBC Universal presented over 150 hours of environmentally themed content across multiple platforms.

Now, NBC Universal is proud to present Green Week 2009. With a new theme and message of "Green Your Routine," Here at NBC and NBC.com we celebrate our talent in the "The More You Know" PSA campaign, presenting green-themed tips in several of our daytime life, among several other features here on the "Green Your Routine" site.

Fashion & Beauty

Throw a clothes swap party! Dying for that sweater your friend wore the other day? Well, maybe she'll trade for that old T-shirt you have. Here's a website that helps you organize a swap party (www.swapstyle.com), or just plan your own!

Go natural with organic make-up. Applying unnatural products directly on your skin wasn't exactly what nature intended. Try switching to a line of organic make-up and cosmetics for a different way to bring out your natural beauty.

Home

Drop a brick in your toilet tank! Literally! According to the EPA, flushing makes up 30 percent of a household's water use (about three to six gallons per flush). By placing a brick in your toilet tank, you can help to conserve the amount of water used during each flush.

Wash clothes efficiently. 90 percent of the energy used in washing clothes is to heat the water. You can reduce your energy bill by washing in cold water and hanging items to dry.

Work

Print smarter. Printing and copying can be one of the most costly operations in any office. To save on ink and paper costs, print double-sided and try to fit more than one page on a sheet. More printing tips can be found here: lifehacker.com

Turn off your computer. Do you leave your computer on overnight? If so, you're using up a good amount of electricity. When you can, try turning off your computer and the power strip it's connected to. If you can't, at least shut off your monitor. Remember, screen savers don't save energy.

Transportation

Organize a carpool. There are many benefits to carpooling. You save on gas, reduce wear and tear on your car, and you get to ride in the HOV lanes. Get connected with your neighbours and co-workers to start sharing rides and check out this website for more tips: www.erideshare.com.

Lose the car, get a bike. If you live close to where you work, try taking a bike instead of driving. You'll keep in shape and save on gas!

Every small step and effort makes a difference! Be sure to GREEN YOUR ROUTINE!

NBC Universal holds Green Week activities ___________.

A. in a university          B. in a park           C. in an office          D. on the internet

This year, Green Week welcomes ____________.

A. advice on how to improve the website                  

B. suggestions about how to make their activities more interesting

C. tips on what to do to make our life greener

D. opinions on whether we should have campaigns

If you want to carpool with somebody, you can find more advice and information at______.

A. www.swapstyle.com                                            B. www.erideshare.com

C. www. lifehacker.com                                           D. www. NBC.com

Which is NOT recommended(推荐) by Green Week this year?

A. Using things like cucumbers to beautify your skin.

B. Reducing the room of your toilet tank to save water when flushing.

C. Giving away your old clothes to those in need of them.

D. Printing and using computers in an economical way.

  根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，并在答题卡上将该项涂黑。选项中有两项为多余选项。

Recently some American scientists have given a useful piece of advice to people in industrialized countries. They say people should eat more of the same kind of food eaten by humans living more than 10,000 years ago.    1  

The scientists say that human life has changed greatly. Our bodies have not been able to deal with these changes in lifestyle and this has led to new kinds of sicknesses.    2    They are called “diseases of civilization”. Many cancers and diseases of the blood system arc examples of such diseases.

    The scientists noted that people in both the Old Stone Age and the New Stone Age enjoyed very little alcohol or tobacco, probably none.    3    However, a change in food is one of the main differences between life in ancient times and that today.

Stone Age people hunted wild animals for their meat, which had much less fat than domestic（驯养的）ones. They ate a lot of fresh wild vegetables and fruits. They did not have milk or any other dairy products, and they made very little use of grains.    4    We eat six times more salt than our ancestors and we eat more sugar as well. We eat twice as much fat but only one third as much protein （蛋白质）and much less vitamin C.

   5    But the scientists say that we would be much healthier if we eat much the same way the ancient people did, cutting the amount of fat, salty and sweet food.

    A. Stone Age people lived a simple life without any meat.

    B. But today, we enjoy eating a lot of these.

    C. In that case, they would live a much healthier life.

    D. Ancient people also got lots of physical exercise.

    E. These new sicknesses were not known in ancient times.

    F. People today probably don’t want to live like our ancestors.

    G. Modern people used to suffer from “diseases of civilization”.

The basic flag of the United States is one of the world’s oldest national flags. Only the basic flags of Austria, Denmark, Great Britain, the Netherlands, Sweden, and Switzer land are older.

During the discovery and settlement of what is now the United States, the flags of various European nations were flown over the land, as symbols of possession. Later, in the Colonial and Revolutionary War periods, flags representing famous persons, places, and events were flown in the American Colonise.

The first official flag of the United States was created by Congress on June 14, 1777. It consisted of 13 alternate red and white stripes and 13 white stars in a field of blue, representing the 13 colonies that had declared their independence in 1776. Congress adopted a new flag of 15 stars and 15 stripes in 1795, to give representation to the two new states admitted into the Union, Vermont and Kentucky.

By 1817, there were 20 states in the Union, and it became apparent that adding one stripe for each new state would destroy the shape of the flag. As a result, Congress in 1818 restored the original design of 13 stripes and provided that each state was to be represented by one star. In 1921 Preside William H. Taft made the first official provision for the arrangement of the stars. He ordered that there be six even rows of eight stars each. Previously the arrangement of the stars had been left to the flag- maker’s fancy.

The evolution of the stars and stripes reflects the growth of the United States. After the admission of Hawaii into the Union in 1959, the flag was official changed for the 26th time since its creation.

There are many government flags flown in the United States in addition to the national flag. Among them are the president’s and vice- president’s flags and those of the federal departments and some federal agencies. Each state in the Union has an official flag. The United States Navy uses special flags for signaling.

The basic flag of the United States is _______.

A. the oldest national flag in the world

B. one of the world’ s oldest flags

C. the most beautiful flag in the West

D. as old as the basic flags of some European nations

Before the War of Independence the flags of various European nations flown over the land were symbols of _______.

A. self- rule    B. occupation

C. peace and friendship  D. independence

The first official flag of the United States was adopted ________.

A. before the Independence War

B. right after the Independence War

C. when independence was declared in 1776

D. during the War of Independence which ended in 1783

The 13 red and white stripes and 13 white stars represent _______.

A. 13 independent states

B. the colonies that declared independence in 1776.

C. the U. S. Congress

D. 13 famous figures in the American colonies

How many states were represented on the new flag adopted in 1795?

A. 13.            B. 15.

C. 20.     D. 2.

What do you do if you are hit in the mouth and one of your teeth is knocked out? A dentist(牙医)may be able to put the tooth back in for you, but you have to get to the dentist first．In the meantime, you have to store the tooth so that it will stay healthy．

The simplest thing to do is put the tooth back into your mouth, or you could put it in milk．Frank Courts, a dentist at the University of Florida, worked with other researchers to find the safest way of keeping knocked-out teeth．He tried putting teeth into milk, into water, and into cell-culture medium(细胞培养液)．He also tried, just drying the teeth in the open air．He used teeth that had to be removed from people’s mouths for various reasons．The teeth were put into one of the solutions(溶液)or stored in the air for one hour．Then cells from the root of the teeth were scraped-off the teeth．Dr．Courts and the others then studied how healthy these cells were．

The cell-culture medium worked best to keep a knocked-out tooth healthy outside the mouth．However, few people keep cell-culture medium handy at home or in school．

The next best thing was milk．But Dr．Courts said that the best thing of all was to wash the tooth and put it right back into its socket(牙槽)in the mouth．For some people, though, this is just too painful or upsetting．So milk will do, until you get your tooth (and your mouth)to a dentist．

This passage is mainly about              ．

A. how a dentist can save a knocked-out tooth

B. how to keep a knocked-out tooth healthy

C．how Dr．Courts and other researchers made their experiments

D．how to put a knocked-out tooth back into its socket

The best way to keep a knocked-out tooth healthy outside the mouth is to store it       .

A．in cell-culture medium    B．in milk     C．in water    D．in the open air

Milk can be used instead of cell-culture medium to put a knocked-out tooth in because     ．

A．milk works better to keep the tooth healthy  B．milk causes less pain

C．cell-culture medium is not usually handy    D．cell-culture medium is more expensive

“Dr．Courts said that the best of al1 was to wash the tooth and put it right back into its socket in the mouth．”In the sentence, the word “best” means              .

A．cheapest and healthiest                  B．least painful and cheapest

C．quickest and least painful                D．easiest and healthiest