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用方框中所给单词的适当词形式填空，每词限用一次。
My father 1 a doctor．He is kind, 2 and brave．When SARS, a kind of 3 disease, spread in China, he took 4 part in the battle 5 it．He 6 my mother and me to work in a hospital．He cared 7 the patients 8 ．He couldn’t come home and could talk with us 9 the phone．“Do you miss your family?” asked a reporter．“Yes, of course．But I’m a doctor．It’s my duty 10 the patients．” My father answered．
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One cool April 22 morning, people started the day as usual．Yet it was not a normal day．What’s so special about April 22?The answer is simple．It is Earth Day．People all over the world celebrate this important day．The idea of having a special day to celebrate Earth began in the 1960s．Life was very different then．Few people talked or even thought about the environment．Most people had no idea how dirty our air and water were．
On April 22, 1970, twenty million(百万)Americans joined the first Earth Day activities．They showed that people really did want to do something about the environment．Since then laws have been passed to protect the air, water, land, and animals．
The vehicles such as cars and buses you ride in must pass tests to make sure they don’t cause too much pollution．Thanks to this law, cars today release(排放)about half as many bad chemicals as cars did back in 1970．As a result, the air we breathe is cleaner than it once was．
Rivers and lakes are also cleaner today than they were in the 1970s．It’s a good thing because they needed a lot of help．The Cuyahoga River in Ohio was so polluted that rubbish and oil on the river even caught fire!Today, the river is cleaner．It no longer burns．It’s healthy enough for birds, fish, and other animals．
Now the celebration has spread to other countries．More than 175 countries take
part each year．
In 2007, people in China paid much attention to a big problem．People were throwing away 27 million plastic bags a day!People had “Bye-Bye Throwaway Culture Week．” They wanted everyone to see how polluted it was to throw away so many plastic bags．In 2008, China passed new laws against them．
Every April 22, millions get together to clean and protect Earth．They also celebrate how far we have come．Our job is to put this knowledge to work．You can help keep our planet healthy too!
1．Is Earth Day on April 22?
2．What caught fire on the Cuyahoga River?
3．How many countries take part in the celebration each year now?
4．Why did Chinese people have“Bye-Bye Throwaway Culture Week”?
5．What the purpose of celebrating the Earth Day?
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Put 2 February in your diary! It is World Wetlands Day! It marks the date that the
Convention(公约) on Wetlands was signed(签署)in1971.This special day was first celebrated in 1997 and it is celebrated every year.
The celebration is a call for action. It is a way to show people how important and
useful the wetlands are for people. On World Wetlands Day, people around the world take
part in many wetlands activities. People take trips to the local wetlands. There are talks
about how important the wetlands are. People get together to clean up their local wetlands
Children draw pictures to advertise the day. People also compete(比赛)in boat races.
The World Wetlands Day is important! If there are no wetlands, there will be no water for anyone in the future. Wetlands help protect nature and resources(资源)like fresh water. Already, more than 10000 million people in the world do not have fresh water.
Many people do not know how important the wetlands are. They can understand why an
elephant or a tiger is important because they are big, beautiful animals. It is much harder for
them to understand how important the animals in the wetlands are. These small animals,
such as frogs and snails, play a very important part in keeping the balance of nature.
All plants and animals are part of the food chain(链).If the small wetlands animals
die, some animals in the food chain will have nothing to eat. They will also die. People
need the wetlands to keep the balance of nature in the world. If we do not protect nature
today，it will be gone tomorrow.
46. What should you put in your diary?
A. Some frogs.
B. The date of World Wetlands Day.
C. 1971
D. Any special day.
47. Where do people celebrate World Wetlands Day?
A. All over the world. B. In ships
C. At home. D. In their own way.
48. Which of the following sentences is NOT true?
A. People celebrate World Wetlands Day by taking part in competitions.
B. People celebrate World Wetlands Day by taking hips to local wetlands.
C. People celebrate World Wetlands Day by listening to talks about the wetlands.
D. People celebrate World Wetlands Day by talking about the weather.
49. Why are small animals important?
A. They are part of the balance of nature and the food chain.
B. They are beautiful.
C. Bigger animals are eaten by them
D. Without them, there may be no water.
50. Which of the following might be the best title of the article?
A. Wetlands Are Important
B. Small Animals Are Also Important
C. World Wetlands Day
D. Food Chain
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