溺水.淹死 查看更多

 

题目列表(包括答案和解析)

On hearing someone calling for help,he turned around and saw a girl      (溺水) in the lake.

 

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  We won’t drown(溺水)if we remember these rules:

  ·Never swim alone.

  ·Never swim at a beach if there is no lifeguard.

  ·Never swim after a meal or when you feel hungry.

  ·Never depend on rings, floats or other swimming aids(help).You may lose them and they may let you sink.

  ·Do not stay in the water too long, especially if it is cold.

  ·Before you dive, be sure that the water is deep enough and that you will not hit anybody.

  ·Never go out in a boat if you can’t swim or if you are not wearing a life jacket.

  If you get into difficulty, this is what you should do:

  ·Keep calm.Save your strength and your breath.

  ·Try to float on your back or tread(踩)water.To tread water, move your feet as if you are climbing some stairs.

  ·Raise your right arm for help.Remember:A red flag means that it is dangerous for all swimmers to enter the water.A blue flag means that it is dangerous for children and weak swimmers to enter the water.

(1)

When you see a red flag, you know that ________.

[  ]

A.

no one should swim there

B.

anyone may swim there

C.

only strong swimmers should swim there

D.

children should not swim there

(2)

We can dive only when ________.

[  ]

A.

the water is deep enough

B.

the water is cold

C.

the water is warm

D.

we are not alone

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阅读理解

  Due to climate change, Arctic(北极的)ice is breaking up earlier in the spring, and its area is decreasing.This is creating problems for polar bears that make their homes off northern Alaska and in Hudson Bay.

  Polar bears off Alaska normally hunt and raise their young on ice sheets(大冰原)that float on the ocean.But as the ice has melted, the polar bears have been forced to spend more time on land.There, they have begun to frequent(常去)beaches, feeding on the remains of whales caught by native hunters.For polar bears, this food is less nutritious(有营养的)than seals that they normally catch on ice sheets.The shrinking(减少)ice has also forced more polar bears into the ocean.In the past, they only had to swim short distances between ice sheets.But as the ice has shrunk, polar bears have been forced to swim longer and longer distances in the open ocean.This poses(造成)a severe danger during bad weather, and an increasing number of drowned(溺水的)polar bears have been observed.

  In Hudson Bay, the ice breaks up three weeks earlier in the spring now than it did 20 years ago.Polar bears on Hudson Bay fast(绝食)during the summer, waiting for ice to form in the fall to hunt.Every year, the summer gets longer, and the bears get skinnier.Over the past 25 years, the average weight of the female bears has dropped 68 kg.This loss affects their ability to reproduce, and already the number of births has dropped 15 percent.Unless the bears can learn to survive these climate changes, these large animals of the ice may one day disappear.

(1)

What is Arctic ice doing earlier each year?

[  ]

A.

It’s freezing.

B.

It’s hardening.

C.

It’s melting.

D.

It’s expanding.

(2)

What is true of polar bears that are spending more time on land in Alaska?

[  ]

A.

Their young are dying.

B.

Their diet is changing.

C.

Their health is improving.

D.

Their families are growing.

(3)

What do polar bears in Hudson Bay do during the summer?

[  ]

A.

They claim territory(地域).

B.

They protect mates.

C.

They hunt animals.

D.

They stop feeding.

(4)

What does the writer imply about female polar bears in Hudson Bay?

[  ]

A.

They are having fewer young now.

B.

They suffer from various sickness.

C.

They don’t need stronger protection.

D.

They can’t find enough good males.

(5)

In which publication would you most likely find this passage?

[  ]

A.

Medical news.

B.

Society Today.

C.

Wildlife Journal.

D.

Design Magazine.

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阅读理解

阅读下列短文,从每题所给的A、B、C、D四个选择中选出最佳选项。

  Such English idioms as“as poor as a church mouse”and“like a drowned(淹死的) rat”remind people of the unfavorable images(形象) of mice and rats. But with his efforts in the 20th, an American young man Walt Disney changed people’s view.

  Born in 1901 in Chicago, Walt Disney was a newspaper seller, and was fond of drawing pictures. Later he went to study arts in a Chicago institute. One day when he was thinking hard how to draw a picture in a building, several mice crawled(爬)onto the drawing board. Walt fed them with bread bits, and they played happily.

  Suddenly an idea struck Walt. He drew a mouse on the paper and named it Mickey. Then Walt began to make cartoon films based on Mickey. He also made use of the newest skill in dubbing(为……配音) in his cartoons so that Mickey was able to talk. In 1932 a Walt Disney cartoon film won the Oscar.

  In mid-1950s, Walt planned a Disneyland in California, and within 10 years, Mickey, the little mouse, helped him to make 200 million dollars. Then another Disneyland was set up in Florida. Mickey Mouse seemed to become the symbol(象征) of American amusements.

  In the Mickey Mouse films, when Mickey did anything wrong or foolish, letters of protest(抗议) would soon be sent to. Disney. He then created(创作) Donald Duck and Pluto to do the silly things so that Mickey was always pretty and honest. With Mickey Mouse, Walt Disney challenged(挑战) the worldly view that it was able to change the nature of anything born in dirty surroundings.

1.Mice and rats will bring people some harm ________.

[  ]

A.so people are tired of them

B.because they often destroy food and buildings.

C.and the number of them is increasing very fast

D.because they are the most dirt animals in the world

2.The text tells that ________.

[  ]

A.the cartoon film“Mickey”is one of the best films in the world

B.Americans like rats and mice very much

C.a lot of Americans enjoy drawing rats and mouse in their pictures

D.people all over the world should protect rats and mice

3.In America, when they talk about Mickey Mouse, Americans often think that ________.

[  ]

A.it is a kind of useful animal

B.it stands for amusements

C.everyone hates it

D.it is a sign of a good future

4.One of the following words that can best express Walt Disney’s character is ________.

[  ]

A.kind
B.rude
C.highly creative
D.good-looking

5.Which of the following animals can show the main idea of the text?

[  ]

A.
B.
C.
D.

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  If you see someone drowning(溺水), speed is very important. Once you get him out of water, if he isn’t breathing, you have four minutes before his brain is completely damaged. Support his neck, tilt(使翘起)his chin upwards. This stops the tongue blocking the airway in the throat and is sometimes enough to get him breathing again. If that doesn’t work, start mouth-to-mouth breathing. Close his nose with your fingers. Open your mouth wide and take a deep breath. Blow into his lungs until his chest rises, and then remove your mouth and watch his chest fall. Repeat twelve times a minute. Keep doing until professional(专业的)help arrives.

  To bring a child back to life, keep your mouth around his mouth and nose and gently blow into his mouth. Give the first four breaths as quickly as possible. If the blood starts turning blue gray color, and you can feel no pulse.(脉搏), then pressing his chest is the last chance of saving his life.

  With arms straight, rock(摇动)forward, pressing down on the lower half of the ribs(肋骨). Don’t be too hard, or you may break a rib. Check the result of your effort by seeing if his color improves or his pulse becomes independent to your chest pressing. If this happens, stop the pressing, or you must continue until rescue arrives.

(1) To bring a child back to life, we usually ________.

[  ]

A.blow into his mouth first

B.press his chest hard immediately

C.call for an ambulance first

D.check his color and pulse first

(2) Once you get a drowning man out of the water, if he isn’t breathing, you must first ________.

[  ]

A.get him breathing again

B.take him to the nearest hospital as soon as possible

C.find someone to help you

D.call the First Aid Centre

(3) In the last paragraph, the word“rescue”means ________.

[  ]

A.breath
B.help
C.doctor
D.pulse

(4) If the drowning boy has no pulse, ________.

[  ]

A.pressing his chin upwards is enough to get him breathing

B.blowing air into his mouth is sure to save his life

C.pressing his nostrils together with your fingers can work

D.pressing is the last chance of saving his life

(5) Which of the following statements is true?

[  ]

A.If a man does not breathe for four minutes, his brain will be completely destroyed.

B.If you see someone drowning, you must give him mouth-to-mouth breathing.

C.Don’t stop pressing his chest, if the drowning man starts breathing again.

D.When pressing, you can do it as hard as you can.

(6) This passage is mainly about ________.

[  ]

A.how to save people out of the water

B.how to give first aid to people who are drowning

C.how to do mouth-to-mouth breathing

D.how to save a child from a river

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