Alzheimer's disease is a major national healt...

Alzheimer’s disease is a major national health problem. Nearly 2 million Americans over the age of 65 have Alzheimer’s disease. It is a leading cause of death among the elderly. But Alzheimer’s disease is not confined （限于） to the aged. There may be a million or more people under the age of 65 suffering from the disease.

At one time, people suffering from the disease were said to be “getting old”. The disease was thought to be a natural part of growing old, but it is now known that Alzheimer’s disease strikes young and old alike. It is an organic （器官的） disease, that destroys brain cells.

Alzheimer’s disease affects the patient’s memory, speech, and movement. In the beginning stages of the disease, the patient may seem slightly confused. He may have trouble speaking, and then the patient’s memory begins to fail. He may forget dates, numbers, names and plans.

As the disease progresses, the patient may not recognize family and friends. These symptoms（症状） often cause terrible anxiety in the patient. He may feel lost and frightened. Sometimes the patient reacts with wild and bad behavior.

In the last stages of the disease, the patient may not be able to take care of himself. He may have lost the ability to speak and walk.

Scientists don’t know exactly what causes Alzheimer’s disease. It may be caused by a virus （病毒）.It may be caused by a poisonous substance（物质） in the environment. At present, there is no cure for the disease. But there are ways to slow its progress. Exercise and physical treatment can help the patients of this disease.

1.The main idea of the passage is that Alzheimer’s disease ________.

A. is a terrible part of the aging process

B. can be cured by physical treatment

C. is an organic disease that affects young and old

D. causes forgetfulness

2.All of the following are symptoms of Alzheimer’s disease EXCEPT________.

A. loss of sight B. difficulty in speaking

C. forgetfulness D. loss of the ability to walk

3.According to the passage, which of the following may be a cause of Alzheimer’s disease?

A. A virus B. Getting old.

C. .Poisons produced by the brain. D. Lack of exercise.

4.The process of Alzheimer’s disease can be slowed by________.

A. operation B. a change in environment

C. medicines D. physical treatment and exercise

高一英语阅读理解中等难度题查看答案及解析

Alzheimer's disease is a major national health problem. Nearly 2 million Americans over the age of 65 have Alzheimer's disease. It is a leading cause of death among the elderly. But Alzheimer's disease is not confined (限于) to the aged. There may be a million or more people under the age of 65 suffering from the disease.

At one time, people suffering from the disease were said to be "getting old". The disease was thought to be a natural part of growing old, but it is now known that Alzheimer's disease strikes young and old alike. It is an organic(器官的) disease that destroys brain cells.

Alzheimer's disease affects the patient's memory, speech, and movement. In the beginning stages of the disease, the patient may seem slightly confused. He may have trouble speaking. Then the patient's memory begins to fail. He may forget dates, telephone numbers, names and plans.

As the disease progresses, the patient may not recognize family and friends. These symptoms(症状) often cause terrible anxiety in the patient. He may feel lost and frightened. Sometimes the patient reacts with wild and bad behavior.

In the last stages of the disease, the patient may not be able to take care of himself. He may have lost the ability to speak and walk.

Some of the scientists think a virus causes Alzheimer's disease. At present, there is no cure for the disease. But there are ways to slow its progress. Exercise and physical treatment can help the patients of this disease.

1.Alzheimer's disease ____________.

A. a terrible part of the aging process            B. is an organic disease that affects young and old

C. can be cured by physical treatment              D. causes high fever

2.All of the following are symptoms of Alzheimer's disease EXCEPT ____________.

A. brain damage   B. difficulty in speaking     C. loss of sight     D. loss of the ability to walk

3.According to the passage, which of the following may be a cause of Alzheimer's disease?

A. Poisons produced by the brain.       B. Getting old.    C. A virus.      D. Lack of exercise.

高一英语阅读理解中等难度题查看答案及解析

Alzheimer’s disease is a major national health problem. Nearly 2 million Americans over the age of 65 have Alzheimer’s disease. It is a leading cause of death among the elderly. But Alzheimer’s disease is not confined （限于） to the aged. There may be a million or more people under the age of 65 suffering from the disease.

　At one time, people suffering from the disease were said to be“getting old”.The disease was thought to be a natural part of growing old, but it is now known that Alzheimer’s disease strikes young and old alike. It is an organic disease which destroys brain cells.

　Alzheimer’s disease affects the patient’s memory, speech, and movement. In the beginning stages of the disease, the patient may seem slightly confused. He may have trouble speaking, then the patient’s memory begins to fail. He may forget dates, numbers, names and plans.

As the disease progresses, the patient may not recognize family and friends. These symptoms（症状） often cause terrible anxiety in the patient. He may feel lost and frightened. Sometimes the patient reacts with wild and bad behavior.

　In the last stages of the disease, the patient may not be able to take care of himself. He may have lost the ability to speak and walk.

　Scientists don’t know exactly what causes Alzheimer’s disease. It may be caused by a virus.It may be caused by a poisonous substance（物质） in the environment. At present, there is no cure for the disease. But there are ways to slow its progress. Exercise and physical treatment can help the patients of this disease.

1.The main idea of the passage is that Alzheimer’s disease ________.

A．is a terrible part of the aging process

B．is an organic disease that affects young and old

C．can be cured by physical treatment

D．causes forgetfulness

2.All of the following are symptoms of Alzheimer’s disease EXCEPT________.

A．forgetfulness                          B．difficulty in speaking

C．loss of sight                            D．loss of the ability to walk

3.According to the passage, which of the following may be a cause of Alzheimer’s disease?

A．Poisons produced by the brain.             B．Getting old.

C．A virus.                               D．Lack of exercise.

4.The progress of Alzheimer’s disease can be slowed by________.

A．operation                             B．a change in environment

C．medicines                             D．physical treatment and exercise

高一英语阅读理解中等难度题查看答案及解析

根据下列各句句意，写出括号内单词的正确形式（每空1分，共10分）

1. Poverty, disease and ignorance remain major world problems. It is not a question that can be__________________.  ( ignore )

2. I was very _______________ to my teachers for their help and my gratitude to them was beyond words. ( grate )

3. While ________________ in the street, he happened to meet one of his friends.  ( walk )

4.My mother is the ________________ friend of mine.  ( good )

5.Both of us are interested in _______________________.  ( cycle )

6. Yesterday, the officer was _________________ approved ( 批准 ) that he could have a two- month holiday and he said he would spend his holiday with his old father.  ( office )

7.She is a _______________ woman who always gets what she wants. ( determine )

8.I will never forget the ________________ of the boss.  ( cruel )

9.I don’t think it fair to let them know the topic in advance （提前）. No, it’s _______ ( fair )

10. The storm destroyed many houses, and the _______________ of the railway was the biggest loss in the storm, which was the most destructive in 30 years. ( destroy )

高一英语单词拼写中等难度题查看答案及解析

用所给单词的适当形式完成句子。（每空1分，共10分）

1. Poverty, disease and _________remain major world problems. It is not a question that can ________.(ignore)

2. In the crash he was seriously __________.He suffered severe __________ to the head and arms. （injure)

3. A child receives its early ______ at home. A well _____ mother will have a great influence on her child’s future. (educate)

4. As a good _____________, you must be highly ____________ in order to win a ___________.(compete)

5. The employer decided to employ Tom as her secretary and she hoped to have a talk with her _______ before he came to work. (employ)

高一英语其他题中等难度题查看答案及解析

Stress is a popular cause of major diseases affecting people worldwide. It is so common that people have begun to search for the best and easiest ways to reduce stress. 1.

Exercise for a better life.

Regular runners say that there is no better feeling than the one you get when you finish your daily run. Exercising is an effective way for you to remove stress from your life. 2. And it can also lift your mood. An additional benefit of exercising is that it keeps you fit and healthy!

Organize it.

Keeping your workplace and home organized is also a way for you to avoid stressful situations. Working in a messy area keeps your brain thinking on several different things at the same time. 3.

Manage your time wisely.

4. Sticking to your schedule gives you focus and a goal to work on. It also helps you avoid missing out on deadlines which are a great source of stress. Managing your time wisely means managing your stress.

In a word, we shouldn’t let stress stop us living a normal and healthy life. Stress will naturally appear due to the modern way of life. 5. Don’t let stress get the better of you and make you lead an unhappy life.

A.Avoid stressed people.

B.Identify what causes your stress.

C.Plan your day ahead and stick to it.

D.Here are some ways to say goodbye to stress.

E.Regular exercise gives you time to think things.

F.And it gets hard to concentrate on just one thing.

G.But just like fire, if we control stress it can’t hurt us.

高一英语七选五中等难度题查看答案及解析

Heart disease is one of the major killers in the world today. Many who suffer from it must have heart transplants (移植). However, it’s difficult to get a suitable heart donation, and even if a patient survives the wait, his or her body often rejects (排斥) the heart.

But there is now new hope for sufferers of heart disease. According to a study published in the journal Advanced Science, researchers from Israel’s Tel Aviv University printed a 3D human heart on April 15.

“This is the first time anyone anywhere has successfully engineered and printed an entire heart,” professor Tal Dvir told CNN.

Unlike the previous 3D-printed heart structure, the new heart is complete with cells, blood vessels (血管), chambers (心室) and other structures a heart needs to function normally. But scientists still have more to figure out before the 3D-printed heart can be fitted into the body. For one thing, the experimental heart is only the size of a thumb (拇指). And, although it can contract (收缩) like a muscle, it cannot pump out blood like a real one. At present, the heart prototype (样品) is like a tiny airplane that has all of the right parts, but can’t fly.

However, the development is still regarded as a major breakthrough in medicine.

In the experiment, the researchers turned human fat tissue (脂肪组织) into human heart tissue with stem cell (干细胞) technology. The tissue was then turned into “bio-ink” for a 3D printer to ensure that tissue in the heart came from the patients themselves. So ideally, if it were to be placed in the body of someone in need of a transplant, there would be less risk of organ rejection.

“Patients will no longer have to wait for transplants or take medications to prevent their rejection,” researchers told USA Today. “Instead, the needed heart will be printed, fully personalized (个性化的) for every patient.”

But the scientists think that 3D printing can be used to create other human organs. They foresee a time when the 3D printing of organs will be an everyday medical practice.

“Maybe, in 10 years, there will be organ printers in the finest hospitals around the world and these procedures will be conducted routinely,” Dvir said.

1.Why is the 3D-printed heart important?

A.It will be used on a patient.

B.It is the first 3D-printed heart.

C.It will replace a heart donation.

D.It has a complete heart structure.

2.What problem do 3D-printed hearts have?

A.They cost too much. B.They are too small.

C.They can’t contract. D.They are hard to produce.

3.Why would there be less risk of organ rejection with the 3D-printed heart?

A.It would be made with stem cell technology.

B.It would be made from human fat tissue.

C.It would come from a patient’s body.

D.It would be printed according to the patient’s condition.

4.What attitude does Tal Dvir hold toward the future of 3D printing of organs?

A.Confident. B.Doubtful.

C.Worried. D.Confused.

高一英语阅读理解困难题查看答案及解析

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Stress(压力) is a popular cause of major diseases affecting people worldwide. It is so common that people have begun to search for the best and easiest ways to reduce stress. 　　 1.

Exercise for a better life.

Regular runners say that there is no better feeling than the one you get when you finish your daily run. Exercising is a good way for you to remove stress from your life. 　　 2. And it can also lift your mood. An additional benefit of exercising is that it keeps you fit and healthy!

Organize it.

Keeping your workplace and home organized is also a way for you to avoid stressful situations. Working in a messy(凌乱的) area keeps your brain thinking on several different things at the same time. 　　 3.

Manage your time wisely.

4.　 Sticking to(坚持) your schedule gives you focus and a goal to work on. It also helps you avoid missing out on deadlines which are a great source of stress. Managing your time wisely means managing your stress.

In a word, we shouldn’t let stress stop us living a normal and healthy life. Stress will naturally appear due to the modern way of life. 　　 5.　 Don’t let stress get the better of you and make you lead an unhappy life.

A. Avoid stressed people.

B. Know what causes your stress.

C. Plan your day ahead and stick to it.

D. Here are some ways to say goodbye to stress.

E. Regular exercise gives you time to think things.

F. And it gets hard to focus on (思想集中) just one thing.

G. But just like fire, if we control stress it can’t hurt us.

高一英语七选五中等难度题查看答案及解析

A super drug that could remove Alzheimer’s (老年痴呆症)，heart disease and diabetes (糖尿病) and help people live to 100 is being developed by scientists. Their research is based on the identification of three genes that help prolong lives and prevent diseases which occur in old age. Medically controlling the proteins made by the “ longevity genes” will allow millions to live longer, predicts Dr Nir Barzilai.

Those whose DNA strongly features the three genes are 80 percent less likely to develop Alzheimer’s. The genes also fight against the deadly impact of smoking, poor diet, obesity and lack of exercise.

Already, several laboratories are working on a pill to imitate the benefits of the genes and Dr Barzilai thinks it could be tested within three years. The pill could remove some diseases that damage old age. “ The advantage of finding a gene that involves longevity is that we can develop a drug that will imitate exactly what this gene is doing,” he said.

Of the three longevity genes, two genes increase the production of so-called good cholesterol(胆固醇), which reduces the risk of heart disease. The third prevents diabetes. They were discovered by Dr Barzilai’s team while studying the DNA of 500 Ashkenazi Jews with an average age of 100. The chances of living that long are one in 10,000 but the group, which shared relatively few common ancestors, was 20 times more likely to hit the entury. Dr Barzilai said: “ 30 percent of them were obese or overweight and 30 percent smoked two acks of cigarettes a day for more than 40 years, however they can live to 100.”

But Andrew Ketteringham of the Alzheimer’s Society said: “Alzheimer’s disease, a most common disease, is likely to be caused by a combination of genetic disosition(遗传倾向), lifestyles and life events. Many genes are probably involved.

1.Some people are able to live to 100 years because of ______.

A. a magical medicine  B. three special genes   C. good living habits  D. longevity proteins

2.Why does the discovery of the longevity genes mean a lot?

A. Because it can bring great benefits to scientific labs.

B. Because it can help people change their unhealthy genes

C. Because it helps produce a drug that can make people live longer.

D. Because it will help scientists build up a new branch of biology.

3.From Paragraph 4 we can infer that ________.

A. longevity genes can create good cholesterol.

B. the volunteers share some common ancestors

C. bad habits are likely to have no effect on the volunteers

D. longevity genes protect the volunteers against bad habits

4.What is Andrew Ketteringham’s attitude toward the study?

A. Positive    B. Negative         C. Critical                 D. Cautious

高一英语阅读理解中等难度题查看答案及解析

Language is a major problem for the European Union(EU) . The argument or treaty(条约) which created the organization that finally became the EU, the Treaty of Rome, stated that each country’s language must be treated equally. The original six countries had only three languages between them: French, German and Dutch/Flemish. However, there are now 15 countries in the EU, with a total of 12 languages. EU documents（文件）must be translated into all these languages, and at official meetings the speeches must be translated into all the languages by interpreters (口译者).

All this translating is very expensive and time-consuming（花时间的）. It is said that nearly half of all employees of the EU are involved in translating documents and speeches and nearly half of the EU’s administrative（管理方面的）costs are spent on this task. In the near future it is probable that several more countries, most of them having their own languages, will join the EU, thus making the situation even worse.

The problem is just cost; there are practical difficulties as well. With 12 languages, there are 132 possible “translation situations” that might be needed. It is often difficult to find people in the right place at the right time who can translate from, for example, Danish into Greek, or Dutch into Portuguese, at a high professional standard.

As a matter of fact, the problem has been less serious by the use of English in many contacts between EU officials, since almost all of them speak some English. However, any move to reduce the number of official languages (perhaps to four or five) would be a blow to the pride of the smaller countries. Another commonly suggested solution is to make English the official language for all EU business. However, this is strongly resisted by powerful member countries like France and Germany.

1. What’s the main purpose of this passage? _____________.

A. To give a solution to a problem.

B. To find out a problem and show how serious it is.

C. To criticize（批评）the European Union for inefficiency.

D. To show that the problem cannot be solved.

2. According to the writer, the use of English in contacts among EU officials has_________.

A. angered the officials who don’t speak English.

B. reduced the number of official languages.

C. lessened the effect of the problem.

D. been opposed（反对）by powerful member countries.

3.The writer mentions “Danish into Greek” as an example of ______________.

A . a situation that might be difficult to deal with.             B. a situation that occurs often.

C. one of the 12 situations that requires an interpreter.  D. languages easily being interpreted.

4.The writer suggests that if the number of official languages was reduced, _____________.

A. the EU would not know which official languages to choose.

B. countries whose languages were not used officially would be unhappy.

C. only languages which are easy to translate would be used officially.

D. the smaller member countries would be pleased.

高一英语阅读理解简单题查看答案及解析