摘要: rare 罕见的

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Zhalong is a nature reserve in Heilongjiang in north-east China. It is one of the world’s most important wetlands. The reserve covers an area of 210,000 hectares. The area provides food and shelter for wildlife. It is an ideal home for different kinds of plants, fish and birds.
Many birds live comfortably in Zhalong Nature Reserve all year round, while some only stay there for a short time. There are many fish in the wetlands, and the birds can easily catch them for food. Zhalong has long been called “the home of the crane”. There are 15 crane species (物种) in the world. 8 of them are in China and there are 6 species in Zhalong area. It is an important living area for the rare red-crowned cranes. There are not many red-crowned cranes in the world. Every spring and summer, red-crowned cranes lay and hatch (孵化) their eggs in Zhalong.
Some people want to change the wetlands to make more space for farms and buildings. This means there will be less and less space for wildlife. More and more birds are in danger because they do not have enough living space. Many of them died. The Chinese government wants to protect these endangered birds, and they can be safe in Zhalong.
Every year, a lot of tourists go to Zhalong to watch birds. This year, members of our Bird-watching Club are going to study the different kinds of birds in Zhalong and the changes in their numbers. The study begins next month.
We _______ once a year. We are now inviting secondary school students to help. We need more people to help us count and do something to help the birds.
Many people do not understand the importance of the wetlands. We hope this information will help them understand and make them actively take action to protect wildlife.
【小题1】 What does the underlined word “ideal” mean?

A.Perfect.B.Dangerous.C.Crowded.D.Expensive.
【小题2】 What can we learn from the second paragraph?
A.All birds stay in Zhalong Nature Reserve all year round.
B.There are eight species of red-crowned cranes in Zhalong.
C.The number of the world’s red-crowned cranes is small.
D.Every winter red-crowned cranes hatch eggs in Zhalong.
【小题3】Which of the following can we choose for the blank (空白) in the fifth paragraph?
A.go birdwatchingB.do a bird countC.go bird-huntingD.hold a bird show
【小题4】The purpose of the article is to _______.
A.attract more visitors to pay a visit to Zhalong Nature Reserve
B.ask people to take action to protect wetlands and wildlife
C.prevent people from watching birds in Zhalong Nature Reserve
D.make people around the world know the Birdwatchting Club

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Have you ever heard someone use the phrase” once in a blue moon”? People use this expression to describe something that they do not do very often. For example, someone might say that he tries to avoid eating sweets because they are unhealthy, but will eat chocolate” once in a blue moon”. Or someone who does not usually like to go to the beach might say “I visit the shore once in a blue moon.”While many people use this phrase, not everyone knows the meaning behind it.

The first thing to know is that the moon itself is never really blue. This is just an expression. In fact, the phrase” blue moon” has to do with the shape of the moon, not the color.

As the moon travels around the earth, it appears to change shape. We associate certain names with certain shapes of the moon. For example, when we can see a small part of the moon it is called a crescent moon. A crescent is a shape that looks like the tip of a fingernail when we cannot see the moon at all; it is called a new moon.

When we can see the whole moon is called a full moon. Usually, there is only one full moon every month. Sometimes, however there will be two full moons in one month. When this happens, the second full moon is called a blue moon”.

Over the next 20 years, there will only be 15 blue moons. As you can see, a blue moon is a very rare (稀有的)event. This fact has led people to use the expression” once in a blue moon” to describe other very rare events in their lives.

1.Which of the following would be a good example of using the phrase” once in a blue moon”.

A.Simon often tells jokes. Simon tells jokes once in a blue moon.

B.Tom rarely remembers to do exercise. Tom does exercise once in a blue moon.

C.Mary likes to go shopping every weekend. Mary goes shopping once in a blue moon.

D.Cindy hates to stay up, but she stays up every day. Cindy stays up once in a blue moon.

2.When does a blue moon happen in nature?

A.When the moon has a blue moon.

B.When we cannot see the moon at all.

C.When there are two full moons in one month.

D.When we can only see a small part of the color.

3.How often will a blue moon happen over the next twenty years?

A.Once a year.                           B.Less than once a year.

C.More than once a year.                   D.At least twice a year.

4.What does the underlined part “This fact” in the last paragraph refer to?

A.A blue moon is a very rare event.

B.The moon appears to change shape.

C.The moon itself is never really bluee.

D.A blue moon has to do with the shape of the moon.

 

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