[单项选择]On the first Earth Day, the U.S. was a poisoned nation. Dense air pollution blanketed cities like Los Angeles, where smog alerts were a fact of life. Dangerous pesticides like DDT were still in use, and water pollution was rampant—symbolized by raging fires on Cleveland’s Cuyahoga River. But the green movement that was energized by Earth Day— and the landmark federal actions that followed it—changed much of that. Today air pollution is down significantly in most urban areas, the water is cleaner, and even the Cuyahoga is home to fish again.
But if the land is healing, Americans may be sickening. Since World War Ⅱ, production of industrial chemicals has risen rapidly, and the U.S. generates or imports some 19 billion kg of them per day. These aren’t the sorts of chemicals that come to mind when we picture pollution—huge plants spilling contaminated wastewater into rivers. Rather, they’re the molecules that make good on the old "better living through chemistry" promise, appearing i
A. Washington has successfully made some federal chemical regulations
B. the EPA has issued restrictions on various chemicals
C. Washington was slow to realize the problem and take measures
D. the government should take all the responsibility for proving dangerous chemicals

[单项选择]On the first Earth Day, the U.S. was a poisoned nation. Dense air pollution blanketed cities like Los Angeles, where smog alerts were a fact of life. Dangerous pesticides like DDT were still in use, and water pollution was rampant—symbolized by raging fires on Cleveland’s Cuyahoga River. But the green movement that was energized by Earth Day— and the landmark federal actions that followed it—changed much of that. Today air pollution is down significantly in most urban areas, the water is cleaner, and even the Cuyahoga is home to fish again.
But if the land is healing, Americans may be sickening. Since World War Ⅱ, production of industrial chemicals has risen rapidly, and the U.S. generates or imports some 19 billion kg of them per day. These aren’t the sorts of chemicals that come to mind when we picture pollution—huge plants spilling contaminated wastewater into rivers. Rather, they’re the molecules that make good on the old "better living through chemistry" promise, appearing i
A. Earth Day is the only day for people to participate in green movement.
B. Earth Day motivated people to change the polluted environment.
C. Los Angeles once had environmental problems like water pollution.
D. The raging fires on Cleveland’s Cuyahoga River resulted from smog.

[简答题]阅读下面短文，简要回答所给问题。
The first Earth Day was in 1970. People were beginning to worry about what we were doing to our environment. So they set up Earth Day to tell everyone about their worries.
In 2007 organizers in over 150 countries planned over 4,000 big events. But Earth Day is not just about marches and big events. In the week around Earth Day(22 April) there were many thousands of smaller, local events. These events dealt with environmental problems in the neighbourhood.
The World Wide Fund for Nature made a list of 5 things that each person could do to help to save the environment.
· Don’t leave the tap running.
· Turn off lights when you leave a room.
· Turn off your computer every night.
· Wash your clothes, and yourself, in warm or cold water, not hot water.
· Dishwashers use as little water as possible.
If we all do at least 2 of these things all the time, we can make a big difference.
What is the purpose for people to set up Earth

[单项选择]Passage Two The establishment of Earth Day began with an idea proposed in October 1969 by John McConnell，a San Francisco resident． McConnell approached the San Francisco Board of Supervisors with a resolution to devote one day a year to public awareness dedicated to nature and the fragile ecosystem that comprises it．The day’s events would emphasize the urgency of all inhabitants of the planet to take responsibility for building a healthy and ecologically sustainable planet．The board was impressed with McConnell’s idea and declared Earth Day an annual celebration to be held on March 21，the date of the vernal equinox．McConnell stated，“This is the moment when night and day are equal throughout the earth—reminding us of Earth’s beautiful systems of balance which humanity has partially upset and must restore．" Earth Day was established as a national day of celebration in the United States in 1 970 and was embraced by the United Nations in 1 97 1 when it declared an Earth Day
A. how Earth Day originated and developed
B. why Earth Day was set on the day of vernal equinox
C. why John McConnell proposed the idea of Earth Day
D. what the major public concern was in the 1970s

[单项选择]How long did the first Thanksgiving Day last
A. Three weeks.
B. Two weeks.
C. Three days.

[填空题]The first Labor Day holiday was celebrated on Tuesday, September 5, 1882, in Chicago.

[单项选择]A client is in the first postoperative day after a total laryngectomy and radical neck dissection. Which of the following is a priority goal
A. Communicate by use of esophageal speech.
B. Improve body image and self-esteem.
C. Attain optimal levels of nutrition.
D. Maintain a patent airway.

[单项选择]The first Labor Day, (31) in New York City in 1882, was less a celebration of the dignity of work than a demonstration in favor (32) the eight-hour day, down from the prevailing 10 to 12 hours. Compared (33) then, American workers have come a long way. Congress (34) Labor Day a national holiday in 1894, and over the years it evolved into a day off rather than a moment to reflect (35) the state of labor.
It’s the bleakest Labor Day since (36) the early 1980s. With the unemployment rate at 9.7 percent in August and expected to go higher, cheery news is (37) .
Job anxiety has also increased sharply, according to opinion survey (38) by the conservative American Enterprise Institute. A Gallup poll in August found that 31 percent of workers worried about being (39) , up from 15 percent a year (40) ; 32 percent thought their wages might be (41) , up from 16 percent; and 46 percent (42) fringe benefit
A. found
B. checked
C. seen
D. explored