Sometimes tests are needed _________ doctors ...

Sometimes tests are needed _________ doctors discover exactly what's wrong with your body.

A. since　　 B. before

C. although　　 D. if

高二英语单项填空中等难度题查看答案及解析

My aunt Edith was a widow of 50, working as a secretary, when doctors discovered what was then thought to be a very serious heart disease.

Aunt Edith doesn’t accept defeat easily .She began studying medical reports in the library and found an article in a magazine about a well-known heart surgeon, Dr. Michael DeBekey, of Houston, Texas.He had saved the life of someone with the same illness .The article said Dr. DeBekey’s fees were very high; Aunt Edith couldn’t possibly pay them .But could he tell her of someone whose fee she could pay?

So Aunt Edith wrote to him .She simply listed her reasons for wanting to live: her three children, who would be on their own in three or four more years, her little - girl dreamt of traveling and seeing the world .There wasn’t a word of self-pity-only warmth and humor and the joy of living .She mailed the letter, not really expecting an answer.

A few days later, my doorbell rang .Aunt Edith didn’t want to come in; she stood in the hall and read aloud. “Your beautiful letter moved me very deeply .If you can come to Houston, there will be no charge for either the hospital or the operation. Signed Michael DeBekey.”

That was seven years ago. Since then, Aunt Edith has been around the world .Her three children are happily married. For her age, she is one of the youngest, most alive people I know – all because of an open heart surgeon who knew how to honor his profession, and how to open his own heart.

56．Aunt Edith wrote a letter to Dr. Debakey to         .

A．ask for his advice       B．beg him to operate on her

C．ask him to introduce another doctor         D．ask for his sympathy

57．The underlined phrase “open heart” in the last paragraph means          .

A．open – minded  B．kind – hearted   C．patient       D．skillful

58．What can we conclude from the passage?

A．Dr. DeBakey is willing to operate on anyone free of charge.

B．Dr. DeBakey is expert in getting along with his patients.

C．My aunt Edith is very poor and mean.

D．My aunt Edith is optimistic and strong – minded.

高二英语阅读理解简单题查看答案及解析

1.Doctors have discovered that _______________________(经常大笑的人长寿)。

2.To some, happiness is being surrounded by family and friends. To others, _____________________________(幸福意味着在某个方面取得成功)， such as meeting a goal.

3.When I was a child, I could spend all day outside, ___________________(和自己的朋友在太阳底下玩。)

4._________________(了解文化差异)is a good way to understand more about each other.

5.The picture of the young girl in the magazine _______________(让我想起了我的表妹)。

高二英语翻译困难题查看答案及解析

What does the doctor advise the woman to do?

A.Do the first test only. B.Give up the two tests. C.Do the tests tomorrow.

高二英语短对话简单题查看答案及解析

To learn English well you must learn about yourself. You must discover what your own special needs are in English. You should pick out what makes English different from your own language and concentrate on those parts. And above all, you should pick out your own personal weaknesses in English, pick out your own special problems, find out what mistakes you most often make and   make a list of them.

It will be best if, in your preparation, you can practise doing the various sorts of work you will be asked to do in examination. You should then make a careful note of any mistakes you make more than once. Count up how many times you make each mistake, and the mistake you make most often should be at the top of your list, the next most common in second place, and so on.

For example, if your own language is Japanese, you may find the problem of articles comes at the top of your list. If you speak German, you may find using some of the conjunctions is your biggest problem. If your mother tongue is French, you find you are always having trouble with some of prepositions. And if Italian is your language, you may constantly forget to use a suitable pronoun when you should.

But these are only examples of mistakes typical of certain languages. They may or may not

be your particular personal mistakes. As I say, these personal ones are the most important of all to discover.

1.

To learn English well the most important thing is to ______.

A. learn about yourself as much as possible

B. discover your own special needs in the language

C. find out the difference between your own language and English

D. pick out your own personal weaknesses in English

2.

The writer advises the readers to ______ .

A. spend as much time on English as possible

B. take examinations of various sorts

C. find out their own problems in doing selected exercises

D. keep a notebook with the important languages points in it

3.

The first item on the list should be the mistake you make ______ .

A. more than once       B. many times      C. most often       D. very often

高二英语阅读理解简单题查看答案及解析

Google previously announced successful tests of machine learning systems designed to assist doctors. In one case, Google reported AI had examined eye diseases with equal accuracy to doctors. Other tests showed that machine learning can be used to study large amounts of patient data to predict future medical events.

Now the company has published two new studies showing a high level of success in identifying metastatic breast cancer. Metastatic means that cancer has spread from its main area to other parts of the body. Metastatic breast cancer is one of the deadliest, causing about 90 percent of all breast cancer deaths worldwide.

In metastatic breast cancer patients, the cancer often travels to nearby lymph nodes(淋巴结). Usually doctors examine lymph node tissue under a microscope to see whether cancer is present. Google notes that previous studies have shown that up to one-fourth of metastatic lymph node classifications end up being changed after a second examination. In addition, studies show that small metastatic material can be missed up to 67 percent of the time when examinations happen under extreme time restrictions.

Google says it created a mathematical algorithm(算法). The algorithm, called Lymph Node Assistant, is trained to find characteristics of tissue affected by metastatic cancer. When the system examined tissue images(图像), it was able to differentiate between metastatic cancer and non-cancer 99 percent of the time. In addition, the Lymph Node Assistant is highly effective at finding the positions of the cancers. Some of these positions would be too small for doctors themselves to identify. The research also showed that the algorithm method can reduce the usual time needed to examine the disease by about 50 percent.

But Google makes clear the AI-based system is not meant to replace the work of medical professionals. Instead, it is designed to reduce the number of false identifications and help doctors work faster and more effectively.

1.What is the main idea of Paragraph 1?

A.Google became a pioneer in training doctors.

B.Machine learning is able to stop future medical events.

C.Google developed artificial intelligence to help doctors.

D.Artificial intelligence cured eye diseases with equal accuracy to doctors.

2.What can we infer about metastatic breast cancer?

A.One-fourth of the metastatic breast cancer patients die in the end.

B.Metastatic breast cancer is very difficult to identify.

C.It results in 90 percent of deaths of all cancers.

D.It can be identified after a second examination.

3.What is the advantage of Google’s new mathematical algorithm?

A.It can offer effective treatment.

B.It can tell the exact positions of cancers

C.It costs 99 percent less time than before.

D.It improves the accuracy of identifying cancers by 50%.

4.What influence will the mathematical algorithm bring?

A.False identification of cancers will be avoided.

B.More effective prevention of cancers will be found.

C.The number of medical professionals will be reduced.

D.Doctors can have a faster understanding of patients’ condition.

高二英语阅读理解困难题查看答案及解析

If doctors want to test you for something, they’ll usually take a blood or urine sample. But wouldn’t it be much more convenient if they just asked you to breathe through a special instrument?

In fact, your breath can say a lot about you. In traditional Chinese medicine, doctors draw a conclusion about the health state of a patient based on the smell of his or her breath; trained dogs and rats can identify the smells of the breaths of people suffering from certain cancers; traffic police also monitor drivers’ alcohol consumption by testing their breaths.

Just like blood and urine, your breath contains lots of “metabolites” —the waste chemicals that the body produces, which vary from person to person. They are like personal health fingerprints, which is why scientists sometimes call them “breathprints”, according to Science Daily.

Compared to blood or urine testing, breath testing takes only seconds instead of hours, and it requires neither a needle nor a container to hold the body fluids(液). This means the test can be taken frequently to better detect early signs of diseases and monitor the progress of a medical treatment.

On the other hand, as an identifier, you might think that breaths are not as reliable as fingerprints since they might change based on what you eat. However, researchers in Zurich, Switzerland mapped 11 healthy volunteers’ chemical patterns by having them breathe through a special instrument, and they found that each pattern was unique and the patterns didn’t change much throughout the day, reported BBC.

“Our goal is to develop breath analysis to the point where it becomes competitive with the established analysis of blood and urine,” said Malcolm Kohler, professor at the University Hospital Zurich.

1.According to the text we know that______.

A. breath varies from person to person based on food

B. your breath may give you away if you are not careful

C. doctors can test one’s breath to find about his illness

D. trained dogs can identify people with certain cancers

2.In comparison with blood or urine testing, breath testing is _______.

A. comfortable and convincing　　 B. traditional and reliable

C. accurate and competitive　　 D. quick and convenient

3.What is the author’s attitude toward breath testing?

A. Doubtful.　　 B. Approving.

C. Unconcerned.　　 D. Worried.

4.What can we infer from the text?

A. Breath testing is reliable and may have a bright future.

B. Blood or urine testing will be less used in medical treatment.

C. Doctors have found the best way to detect early signs of diseases.

D. Traditional Chinese medicine is becoming more and more popular.

高二英语阅读理解中等难度题查看答案及解析

Medical doctors sometimes can make mistakes ______ will cost ______

A. that; patients their lives

B. what; patients their lives

C. which; patients for their lives

D. that; patients with their lives

高二英语单项填空中等难度题查看答案及解析

Medical doctors sometimes can make mistakes _______ will cost ________.

A. that; patients their lives

B. what; patients their lives

C. which; patients for their lives

D. that; patients with their lives

高二英语单项填空中等难度题查看答案及解析

Whenever a patient needs an injection of Penicillin, the doctor does need to make sure whether his patient is ___ to the medicine.

高二英语单项填空简单题查看答案及解析