A.when B.in order to C.so that D.before 查看更多

 

题目列表(包括答案和解析)

In most situations, light helps us see.But nowadays humans are using too much of it so that it is in fact a kind of pollution.

When it comes to looking at the night sky, too much light makes it difficult for us to watch some of life’s most wonderful sights: stars, planets and even galaxies(星系).

According to scientific research, about 2, 500 stars can be seen by the human eye without using any special equipment(设备).But because of light pollution, you can only see 200 to 300 stars from today’s countryside, and no more than ten stars from a city.In most big cities, people cannot see the sky filled with stars like they did in their childhood.

Light pollution affects more than just our view of sky.Research shows that lots of nighttime light can harm wildlife, too.

When birds fly to another place over cities, they sometimes get lost by the brightness and fly in circles(圈) until they drop from tiredness.Sea turtles(海龟) need dark beaches for laying eggs, but they can’t find their ideal places because of those bright lights.

Too much light at night may even affect human health, but scientists are not sure of that. They are still learning more.

In order to prevent things from going worse, governments and some organizations are working to reduce light pollution.Many cities and towns have taken action to reduce the use of lights at night.Lights are used only when and where they are truly needed.They also shine lights down at the ground instead of up into the sky and use lower brightness levels.

Hopefully, in the near future, humans can enjoy the clear and beautiful sky again and all the wildlife will live a peaceful and undisturbed life, too.

1.Why does the writer think that too much light is a kind of pollution?

A. Because there are fewer and fewer stars.

B. Because human health has been affected.

C. Because too much light is a waste of energy.

D. Because some of the wildlife can be harmed.

2.Which of the following is NOT mentioned(提到)in this passage?

A. The problems that light pollution has caused.

B. The reason why humans use too much light.

C. The ways that light pollution can be reduced.

D. The reason why fewer stars can be seen than before.

3.Which of the following is true according to the passage?

A. There are about 2,500 stars in the sky.

B. Humans want to do nothing to reduce light pollution.

C. Sea turtles always get lost and die from tiredness.

D. Something has been done to reduce light pollution.

查看答案和解析>>



WIRES is short for Wildlife Information and Rescue Service. It is an Australian  organization, established(成立) in 1985 to care for injured and orphaned(失去母兽的) native wildlife. WIRES has a network of hundreds of volunteers who rescue and care for native animals until they are well enough to be released (释放)into the wild. Volunteers look after rescued animals in their own homes and are trained in the special needs of native wild animals.
When Australians find a native animal in trouble, they often call WIRES for help. WIRES may be asked to look after a possum that has been attacked by a cat, rescue a large lizard that has got its head caught in a drink can, or care for a baby animal who has lost its mother. People call WIRES when they want to move a dangerous snake away from their garden or when they find a seabird that has swallowed(吞下) a fishing line or an owl with a broken wing. Sometimes kangaroos jumped onto the road in front of cars and are run over. Australians are encouraged to check the pouch(育儿袋)of dead kangaroos in case there is a baby in it. WIRES volunteers find themselves caring for many babies orphaned in this way.
Each year, in the summer, parts of Australia suffer from(受苦) huge bush fires. These fires not only destroy human homes and put people in danger, but they also destroy animal habitats(栖息地)and endanger the animals living in the bush. After a big fire, WIRES and other organizations go into the district to pick up surviving animals. They are treated for burns, shock, smoke and other problems and then cared for until new location can be found for them.
WIRES is also involved in educating people in the importance of caring for wildlife and wildlife habitats. Volunteers visit schools and other public places to talk about native animals. Sometimes they bring a bat or some other interesting animals with them to show to people who may never have seen one up close before.
小题1:What is WIRES?
A.It helps the pets in the street to look for their homes.
B.It rescues and cares for animals in order to set them free.
C.It consists of hundreds of volunteers from all over the world.
D.It provides services for wild animals and keeps them in a zoo.
小题2:Which of the following is TRUE according to the passage?
A.Australians often call the police for help if they find animals in trouble.
B.Volunteers in WIRES are afraid to take snakes away from communities.
C.Australian government asks WIRES workers to save animals after a fire.
D.WIRES often go to the public places to give lessons of wild animals.
小题3:What’s the passage mainly about?
A.It mainly talks about what WIRES members usually do.
B.It tells us why WIRES develops so quickly in Australia.
C.It teaches us how WIRES can train wild animals at home.
D.It mainly tells us how we can join in WIRES successfully.

查看答案和解析>>

阅读理解

It's important to learn how we can protect the environment.Here are 5R rules for us.Reduce(减少).If you want to reduce waste, you should use things more cleverly.A large number of trees are being cut down to make paper.If everyone uses paper carelessly, soon we would not have any trees left.Other things are also being wasted, and people don't know what to do with the waste in big cities.So it is necessary to reduce the amount(数量)of waste we produce.Reuse.You should always think of reusing things before throwing them out.For example, give the clothes you do not use or the ones that are too small to the poor.In a family, you may pass on such clothes to younger brothers or sisters.Recycle.Bottles, cans and paper can easily be recycled.By doing so we save lots of time and money.For example, coke cans are sent to a factory, where they are smashed flat and melted.The metal can be used to make new coke cans.Recover.When you buy a box of apples, there may be a few rotten(腐烂的)ones.You have two choices:one is to throw the apples away; the second is to throw the rotten ones and keep the good ones.In this way, you are recovering the eatable parts of food.Repair.If one of the legs of your table is broken, you should repair it.If you want to buy something newer and better, it is better for you to sell the old thing, or give it to people who can use it after repairing it.Learn the rules to protect our environment.Let's try our best to make the earth cleaner and more beautiful.

(1)

The“Reduce”rule mainly asks us ________.

[  ]

A.

to use a lot of paper

B.

to cut down lots of trees

C.

to use things more cleverly

D.

to throw away your old clothes

(2)

What should you think of before you throw things out?

[  ]

A.

Buying new ones.

B.

Repairing.

C.

Eating them.

D.

Reusing.

(3)

What's the correct order for recycling coke cans?

a.collect the used cans

b.melt them

c.smash them flat

d.send them to a factory

[  ]

A.

a, b, c, d

B.

a, d, c, b

C.

b, d, c, a

D.

c, a, b, d

(4)

The“Recover”rule mainly asks us ________.

[  ]

A.

to keep the useful part

B.

to cover waste things with earth

C.

to keep waste things

D.

to throw everything away

(5)

What is the first suggestion(建议)that you should do with broken things?

[  ]

A.

To throw them away.

B.

To put them in a cupboard.

C.

To repair them.

D.

To sell them.

查看答案和解析>>

阅读下面三篇短文,从各题所给的A、B、C、D四个选项中选出最佳选项。

  Starting a stamp collection is easy and not very expensive.Before you start, you need to decide what kind of stamps you want to collect.Most people collect stamps that they are interested in: a certain country or an animal, a famous person or even a sport.Whatever you choose, you will find that there is a world of knowledge in stamps: you will learn about people, geography, building, history and culture.

  You can collect stamps from letters, ask your friends to let you have their old stamps, or you can buy used stamps.When you get a letter with a stamp on it, carefully cut out the stamp.Leave lots of space around the stamp so that you will not damage it.Put the stamp in water and wait until you can safely remove the stamp.Carefully remove the stamp off the letter.Place the wet stamp between two clean pieces of paper.A stamp can get wrinkled(褶皱的)when it dries, so put some books on top.

(1)

What does the writer think of collecting stamps?

[  ]

A.

Hard

B.

Expensive

C.

Useful

D.

Boring

(2)

What does the underlined work “damage” mean?

[  ]

A.

损坏

B.

保存

C.

利用

D.

删除

(3)

What's the correct order when we try to get a stamp on a letter?

①Remove the stamp off the letter.

②Place the wet stamp between two pieces of paper.

③Cut out the stamp.

④Put the stamp in water.

⑤Put some books on top.

[  ]

A.

①→②→⑤→③→④

B.

③→④→①→②→⑤

C.

④→①→②→⑤→③

D.

③→①→④→②→⑤

查看答案和解析>>

  Latika’s class went on a field trip to a pumpkin patch.Getting there was fun because there was so much to look at through the bus window.The leaves on the trees were so pretty.They had started to change colors.Before Latika knew it, they had arrived at the pumpkin patch.

  First, the class walked through the barn.The farmer showed the students some of his farm tools, and told them what it was used for.Latika’s favorite farm tool was the tractor.She wished that she could take it for a ride.

  After touring the barn, everyone got to go for a hayride!A big green tractor, like the one in the barn, pulled a large cart full of hay.The class had fun throwing hay into the air.

  The last thing the class did was picking out a pumpkin.Each student got to take home one pumpkin.Evan picked a big round pumpkin.Stewart chose a tall, skinny pumpkin.Latika took her time looking over the pumpkins before she picked one.Finally, she decided on a very small, round pumpkin.She thought it would look nice on the windowsill in her kitchen.

(1)

What season was it when Latika’s class went on the field trip?

[  ]

A.

Spring.

B.

Summer.

C.

Fall.

D.

Winter.

(2)

The underlined word“They”refers to ________.

[  ]

A.

the fields

B.

the leaves

C.

the class

D.

the pumpkins

(3)

Which of the following is the right order of the events?

a.Everyone picked out a pumpkin.

b.The class took a tour of the barn.

c.Latika and her classmates were on the bus.

d.The class went on a hayride.

[  ]

A.

c, b, d, a

B.

c, b, a, d

C.

b, c, d, a

D.

b, d, a, c,

(4)

Latika picked a small, round pumpkin because ________.

[  ]

A.

she didn’t like to eat pumpkins

B.

she wanted to leave big ones to others

C.

she thought small pumpkins were sweet

D.

she wanted to put it on her kitchen windowsill

查看答案和解析>>


同步练习册答案