What is so amazing about giving blood?The Nat...

What is so amazing about giving blood?

The National Blood Service, which covers all of England and North Wales, needs nearly two and a half million blood donations each year. When you give blood, you’ll be doing one of the most amazing things anybody could dream of — saving a life.

___________________________

All types of blood are needed —not just rare ones. In fact, the commoner the blood type, the more are needed. So even if your blood is one of the most common types — group O for example — you can be sure that by donating three times a year, you really are doing something amazing.

What is the donation process?

The donation will last about an hour in all. When you arrive, you will be asked a few questions about your health. Then a drop of blood will be taken and tested just to make sure you’re not anemic(贫血). If all is well, your donation will be taken.

This only takes about ten minutes, during which time 470ml of blood will be collected. Most people hardly feel a thing. After a short rest, a drink and biscuits, you’ll be up and ready to go. All equipment used in the collection of your blood is new and is never reused, so you don’t have to worry about risks to your health in the collection of your blood.

Who can become a blood donor?

Becoming a blood donor really is very simple. As long as you’re in good health and aged between 17 and 60, you can become a blood donor. If you would like more information or advice, or you want to become a blood donor, ring the donor helpline on 0845 7711. The donor helpline is open 24 hours a day — every day of the year.

1.Which is the subtitle (副标题) of Paragraph 2?

A. Why should you donate blood?

B.What should you consider before donation?

C. What types of blood are needed?

D. How many times a year can you donate blood?

2.Before giving blood, you will ________.

A. take a blood test　　　　　　　 B. wait for one day

C. fill in a form　　　　　　　 　　 D.rest for a while

3.What does the passage tell us about the donation process?

A. It takes many hours.

B. It’s done on computer.

C. It doesn’t need equipment.

D. It won’t affect donors’ health.

4.The purpose of the writing is to _______.

A. introduce the National Blood Service

B. call on people to donate blood

C. show the importance of donation

D. remind people of the danger

高二英语阅读理解中等难度题查看答案及解析

The idea of giving blood is very simple, but that idea has saved many thousands of lives over the past century.

Doctors have been carrying out blood transfusions for hundreds of years. 1..起初，他们从绵羊身上抽血. But that wasn’t very successful. It wasn’t until last century that doctors realized there are several types of blood. 2.. and that the correct type must always be used. Once they knew that, blood transfusions had become almost 100% successful.

So, you might be thinking, what does this have to do with me? Well, 3..它与我们大家都有关系. Hospitals need to keep banks of blood ready for transfusions. The only way they can get that blood is from ordinary people like you. 4.. Every human body has about5.liters of blood, and we take 0.5 liters from each person. This is completely safe. In fact. 6.. your body will make enough blood to replace it in a day. It costs you nothing, and it could save a life. So please give blood.

高二英语翻译中等难度题查看答案及解析

You have been badly injured in a car accident. It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident. However, special care must be taken in selecting new blood for you. If the blood is too different from your own, the transfusion could kill you.

There are four basic types of blood; A, B, AB, and O. A simple test can make sure of a person's blood type. Everybody is born with one of these four types of blood. Blood type, like hair color and height, is received from parents.

The four groups must be transfused carefully. A and B cannot be mixed. A and B cannot receive AB, but AB may receive A or B. O can give to any other group; therefore, it is often called the universal donor (万能捐赠者). For the opposite reason, AB is sometimes called the universal recipient（接受者）. However, because so many reactions (反应) can happen in transfusions（输血）, patients usually receive only salt of plasma (liquid part of blood) until their blood can be matched as exactly as possible in the blood bank of a hospital. In this way, it is possible to prevent the transfusion from any bad reactions.

86. People with type A blood can receive type     .

A. AB          B. B          C. O                    D. all of the three

87. If you need a blood transfusion, the best and safest blood for you is     .

A. a mixture of type A and type B

B. a mixture of salt, plasma and type O

C. type AB

D. exactly the same type as your own

88. The phrase "universal recipient" means a person who     .

A. can receive blood of type A or B

B. can receive blood of any other type

C. can give blood to anybody

D. cannot give blood to others

89. A good title for this article is     .

A. Getting Enough Blood

B. Differences Between Blood Types

C. Man's Four Types of Blood

D. How to Give Blood Transfusion

90. Which of the following statement is NOT true?

A. Carelessness in a blood transfusion may lead to death.

B. AB is the mixture of A and B

C. AB is called the universal recipient because it can receive any other group.

D. In transfusions, patients usually receive only salt of plasma at first.

高二英语阅读理解简单题查看答案及解析

I’ve just read your blood test report and all seems OK, so there’s _______ to worry about.

A. something　　 B. anything

C. nothing　　 D. Everything

高二英语单项填空简单题查看答案及解析

Most people think about donating blood. However, very few actually do it. Even the most consistent ones donate an average of just three to four times during their lifetime. Now the officials in Sweden are trying to change the trend with the help of modern-day technology.

The encouragement to donate again begins shortly after the donor leaves the clinic when he/she receives a “thank you” text. Though that certainly helps them feel appreciated, what is even more pleasing is the text they receive each time their blood is used to help someone in need.

Karolina Wiberg, manager of the Stockholm blood service, believes this small gesture not only results in repeat donors, but helps bring in new ones. The program that was started in Stockholm has received such positive feedback that it is now being rolled out across the country.

However, Swedish officials are not stopping there. They are also encouraging local clinics to publish the exact levels of the different blood groups they have at any given time on their websites. This allows potential donors to realize that their blood can make a difference in saving someone’s life.

While all these outreach(外展服务 ) programs are great, busy citizens, even the ones with the best intentions have to be occasionally reminded. In order to jog their memories, officials ask people for authorization(授权) to send them text, Facebook, and e-mail reminders. Though that may sound disturbing, the citizens do not seem to mind, given that the messages are light-hearted and fun — things like “We won’t give up until you bleed.”

Though Sweden is currently the only country using modern technology to urge more donations, don’t be surprised if more join in, especially if the Nordic country’s blood banks start to overflow!

1.Why is another text sent to blood donors after a “thank you” one?

A. To ask them for authorization.

B. To inform them their blood is used.

C. To remind them to donate blood immediately.

D. To tell them the levels of blood groups.

2.What does “The program” in Paragraph 3 refer to?

A. Publishing information about blood donation.

B. Giving Facebook reminders to citizens.

C. Sending text messages to blood donors.

D. Providing people with blood service.

3.What do people think of blood donation reminders?

A. Disturbing.　　　　　　　　　　　　 　　 B. Memorable.

C. Boring.　　　　　　　　　　　　　　　　　　 D. Acceptable.

4.What can we infer from the last paragraph?

A. Sweden will stop urging blood donation.

B. Sweden has benefited little from its program.

C. More countries may follow Sweden’s example.

D. Nordic blood banks are in great need of blood.

高二英语阅读理解中等难度题查看答案及解析

--what effect does the medicine have          the blood pressure ?

--- well ,it depends         how much you take .

A. with ;on     B . with ; to     C . on ; on    D . on ; to

高二英语单项填空简单题查看答案及解析

--what effect does the medicine have ________ the blood pressure ?

--- well ,it depends________how much you take .

A. with ;on     B . with ; to     C . on ; on    D . on ; to

高二英语单项填空中等难度题查看答案及解析

Water is the “life blood” of our earth. It is in every living thing. It is in the air. It runs through mountains and valleys. It forms lakes and oceans. Water is everywhere.

Nature has a great water system. Rain water finds its way to streams and the oceans.

Here at the mouth of a river there is much important plant and animal life. Pollution destroys this life, so we have to clean out streams and rivers. Man has to work with nature—not against it.

1.According to the passage, water is the ________ of our earth.

A. blood            B. clouds            C. rain            D. life

2.The mouth of the river is near ________.

A. a stream            B. the ocean        C. the mountains    D. valleys

3.There is much plant and animal life at the ________.

A. head of a river                        B. bottom of a sea

C. body of a stream                        D. mouth of a river

4.The water in streams and rivers all comes from ________.

A. rain                B. nature            C. valleys            D. oceans

5.Which of the following is NOT true?

A. We can find water in our body.

B. Blood can be found in every living thing.

C. We can work against nature.

D. At the mouth of a river we can find many living things.

高二英语阅读理解中等难度题查看答案及解析

I don't think there is anything wrong with your blood. The key to your problem is that long nap（打盹,小睡）after dinner. If you didn't sleep for hours during the early part of the evening, you would be more ready to sleep at bedtime. If you didn't nap after dinner, you would not want to stay up so late, and you would not feel the need to take a sleeping pill. The pill is still working in your system when you get up in the morning. This helps account for the fact that you feel tired all day. You should get out of the habit of sleeping during the evening. Right after your evening meal, engage in some sort of physical activity - a sport such as bowling, perhaps. Or get together with friends for an evening of cards and conversation. Then go to bed at your usual time or a little earlier, and you should be able to get a good nights rest without taking a pill.

　If you can get into the habit of spending your evenings this way, I am sure you will feel less tired during the day. At first it may be hard for you to go to sleep without taking a pill. If so, get up and watch television or do some jobs around your house until you feel sleepy. If you fall asleep and then wake up a few hours later, get up but do not take a sleeping pill. Read a while or listen to the radio, and make yourself a few hours'sleep that night, you will feel better in the morning than you usually feel after taking a pill. The next night you will be ready to sleep at an earlier hour.

　The most important thing is to avoid taking that nap right after dinner and avoid taking pills.

1. According to the writer, it is difficult for you to go to sleep because　　　　.

　A. you get the habit of staying up late      B. you haven't taken sleeping pills

　C. you sleep for hours after dinner         D. you fail to do some exercises

2. Which of the following is NOT true if you want to get out of the habit of sleeping during the evening?

A. Go to bed earlier than usual. 　　B. Talk with friends after dinner.

C. Stay with friends after dinner. 　　 D. Do some physical labor.

3. You feel tired all day probably because　　　　.

A. you stay up too late 　　B. you get up too early in the morning

C. you take sleeping pills 　　D. you wake up too frequently at night

4. Which of the following is true according to the passage

A. You mustn't take sleeping pills in order to get a good night's sleep.

B. You should stay up if you want to sleep effectively.

C. Food is necessary at night if you fail to go to sleep.

D. It is very important to get out of the habit of taking a nap after dinner.

5. We may infer that the author is most probably a　　　　.

A. doctor　　B. scientist 　　C.  reporter　　 D. professor

高二英语阅读理解简单题查看答案及解析

If a diver surfaces too quickly, he may suffer the bends. Nitrogen(氮) dissolved(溶解) in his blood is suddenly liberated by the reduction of pressure. The consequence, if the bubbles (气泡)accumulate in a joint, is sharp pain and a bent body—thus the name. If the bubbles form in his lungs or his brain, the consequence can be death.

Other air-breathing animals also suffer this decompression(减压) sickness if they surface too fast: whales, for example. And so, long ago, did ichthyosaurs. That these ancient sea animals got the bends can be seen from their bones. If bubbles of nitrogen form inside the bone they can cut off its blood supply. This kills the cells in the bone, and consequently weakens it, sometimes to the point of collapse. Fossil (化石)bones that have caved in on them selves are thus a sign that the animal once had the bends.

Bruce Rothschild of the University of Kansas knew all this when he began a study of ichthyosaur bones to find out how widespread the problem was in the past. What he particularly wanted to investigate was how ichthyosaurs adapted to the problem of decompression over the 150 million years. To this end, he and his colleagues traveled the world’s natural-history museums, looking at hundreds of ichthyosaurs from the Triassic period and from the later Jurassic and Cretaceous periods.

When he started, he assumed that signs of the bends would be rarer in younger fossils, reflecting their gradual evolution of measures to deal with decompression. Instead, he was astonished to discover the opposite. More than 15% of Jurassic and Cretaceous ichthyosaurs had suffered the bends before they died, but not a single Triassic specimen(标本) showed evidence of that sort of injury.

If ichthyosaurs did evolve an anti-decompression means, they clearly did so quickly—and, most strangely, they lost it afterwards. But that is not what Dr Rothschild thinks happened. He suspects it was evolution in other animals that caused the change.

Whales that suffer the bends often do so because they have surfaced to escape a predator (捕食动物) such as a large shark. One of the features of Jurassic oceans was an abundance of large sharks and crocodiles, both of which were fond of ichthyosaur lunches. Triassic oceans, by contrast, were mercifully shark- and crocodile-free. In the Triassic, then, ichthyosaurs were top of the food chain. In the Jurassic and Cretaceous, they were prey(猎物) as well as predator—and often had to make a speedy exit as a result.

1.Which of the following is a typical symptom of the bends?

A. A twisted body.　　 B. A gradual decrease in blood supply.

C. A sudden release of nitrogen in blood.　　 D. A drop in blood pressure.

2.The purpose of Rothschild’s study is to see________ .

A. how often ichthyosaurs caught the bends　　 B. how ichthyosaurs adapted to decompression

C. why ichthyosaurs bent their bodies　　 D. when ichthyosaurs broke their bones

3.Rothschild’sfindingstatedinParagraph4 .

A. confirmed his assumption　　 B. speeded up his research process

C. disagreed with his assumption　　 D. changed his research objectives

4.Rothschild might have concluded that ichthyosaurs.

A. failed to evolve an anti decompression means

B. gradually developed measures against the bends

C. died out because of large sharks and crocodiles

D. evolved an anti decompression means but soon lost it

高二英语阅读理解中等难度题查看答案及解析