China’s government has been trying all measures to reduce pollution in the past few years. Now people can enjoy a fresh environment everywhere. The following two graphs are adopted from the column of “City Information” on the webpage of Beijing Review.

Graph 1: Olympic Cities Air Quality Report

Graph 2: Chinese National Standard

Notes:

   **API stands for Air Pollution Index(指数).

   **Particulate matter (PM10) is a major component of air pollution that threatens both our health and our environment. It consists of very small liquid and solid particles floating in the air.

   **Sulfur dioxide(SO2) acts as an acid．Inhalation(吸入) results in labored breathing, coughing, or a sore throat and may cause permanent lung damage.

1.According to Graph 1, which of the following cities has the worst air pollution?

    A. Qinhuangdao.          B. Tianjin.       

    C. Qingdao                D. Shenyang.              .

2. If your city is symbolized by either red or purple, the pollution in your city is      .

    A. Moderate or high.        B. Moderate or slight.   

    C. Medium or high.         D. Medium or slight.   

3.Which of the following statements is TURE?

    A. With API value below 150 the air is free from being polluted.

    B. The colors from purple to Yellow indicate the air quality is becoming much worse.

    C. When there are floating solid particles and dust in the air, it is dangerous pollution.

    D. On September 8th the color-symbol of Beijing City’s air quality is ‘Blue’.

4.When more citizens are beginning to have labored breathing soon after they are in the open air, it suggests that             .

    A. there is a large amount of sulfur dioxide in the air

    B. it is so cold that they may have caught a cold

    C. they are starting to cough or have a fever

    D. they must be infected with permanent lung disease

Events Calendar
TUESDAY
Landscape Pests (害虫)
Learn to identify, control and prevent seasonal landscape-disease and landscape-pest problems at the workshop, 3:30 pm. – 5 pm. Tuesday at the US National Arboretum, 3501 New York Ave NE, Washington. $15; registration required.
202-245-4521 or www.usna.usda.gov.
THROUGH AUGUST 3
Horticultural(园艺的) Art
Watercolors, pen-and-ink drawings and colored-pencil pieces by the Brookside Gardens School of Botanical (植物学的) Art and Illustration will be on display at the exhibit Botanic 2007: The Art and Science of Plants at Brookside Gardens Visitors Center, 1800 Glenallan Ave, Wheaton, through Aug. 3. Free. 301-962-1400 or www.brooksidegardens.org.
THROUGH SEPTEMBER 9
Botanical Art
Visit Patterns in Nature, an exhibit by Amy Lamb featuring photographs of flowers, leaves and other botanical life, at the US Botanic Garden Conservatory （温室），West Orangerie, 100 Maryland Ave SW, Washington, through Sept. 9. The conservatory is open 10 am. – 5 pm. Daily. Free. 202-225-8333.
THROUGH OCTOBER 8
Botanic Garden Exhibit
Celebrating America’s Public Gardens is on view through Oct. 8 at the US Botanic Garden, 100 Maryland Ave SW, Washington. The exhibit, on the Conservatory Terrace and in the National Garden, features displays of 20 public botanic gardens across the country. Hours are 10 am. – 5 pm. Daily. Free. 202-200-8956.
【小题1】If you want to record your name for an event in advance, you may call _____.

The legal age for drinking alcohol in the Unite States is twenty-one. Underage drinking is a crime but also a common part of college social life. This week in our Foreign Student Series, we look at alcohol rules at American colleges and universities. These rules differ from school to school, but many schools have been moving to strengthen their rules.
The United States has more than 17,000,000 students in higher education. Each year, 1700 of them die from alcohol-related road crashes and other injuries. 600,000 more are injured while under the influence of alcohol. And almost 700,000 are attacked by another drunken.
One behavior that college officials are trying to prevent is too much drink. Some researchers have found that students who think binge drinking(狂饮) is normal often think extremely how much other students really drink. A person can die of alcohol poisoning. At Oklahoma University, a nineteen-year-old student died from drinking heavily at a party in 2005.
Now alcohol is banned from all sorority houses(联谊会会馆) and university housing. Student organizations can serve alcohol at events but only on Friday and Saturday nights. Other new requirements include an alcohol education program that first-year students take online.
The rules govern behavior on campus(大学校园)and off. With a first violation(违犯)，students pay seventy-five dollars and their parents are told. They must also take an alcohol education class. For a second “strike”, they have to pay one hundred fifty dollars. A third strike means that they have to be suspended school for at least one semester.
Since 2005,363 students have had a first strike. 30 have had a second strike-and only one hasn’t allowed to go to school for one semester. The president at Oklahoma tells us the aim is not just to punish but to change the behavior and culture at the university.
【小题1】The first paragraph mainly tells us that            .

Events Calendar

TUESDAY

Landscape Pests (害虫)

Learn to identify, control and prevent seasonal landscape-disease and landscape-pest problems at the workshop, 3:30 pm. – 5 pm. Tuesday at the US National Arboretum, 3501 New York Ave NE, Washington. $15; registration required.

202-245-4521 or www.usna.usda.gov.

THROUGH AUGUST 3

Horticultural(园艺的) Art

Watercolors, pen-and-ink drawings and colored-pencil pieces by the Brookside Gardens School of Botanical (植物学的) Art and Illustration will be on display at the exhibit Botanic 2007: The Art and Science of Plants at Brookside Gardens Visitors Center, 1800 Glenallan Ave, Wheaton, through Aug. 3. Free. 301-962-1400 or www.brooksidegardens.org.

THROUGH SEPTEMBER 9

Botanical Art

Visit Patterns in Nature, an exhibit by Amy Lamb featuring photographs of flowers, leaves and other botanical life, at the US Botanic Garden Conservatory （温室），West Orangerie, 100 Maryland Ave SW, Washington, through Sept. 9. The conservatory is open 10 am. – 5 pm. Daily. Free. 202-225-8333.

THROUGH OCTOBER 8

Botanic Garden Exhibit

Celebrating America’s Public Gardens is on view through Oct. 8 at the US Botanic Garden, 100 Maryland Ave SW, Washington. The exhibit, on the Conservatory Terrace and in the National Garden, features displays of 20 public botanic gardens across the country. Hours are 10 am. – 5 pm. Daily. Free. 202-200-8956.

1.If you want to record your name for an event in advance, you may call _____.

2. If you go to Botanic Garden Exhibit, you _____.

3. From the advertisement, we learn _____.