C

It happened one morning 20 years ago. A British scientist Alec Jeffrey came across DNA fingerprinting: He identified the patterns of genetic material that are unique to almost every individual. His discovery changed everything from the way we do criminal investigations to the way we decide family law. But the professor of genetics at the University of Leicester, UK, is still surprised, and a bit worried, by the power of the technology he released upon the world.

The patterns within DNA are unique to each individual, except identical twins, who share the same pattern. The ability to identify these patterns has been used to convict(证明…有罪) murderers and to clear people who are wrongly accused. It is also used to identify the victims of war and settle disputes over who is the father of a child.

Jeffrey said he and his colleagues made the discovery by accident while tracking genetic

variations(变异). But, within six months of the discovery, genetic fingerprinting had been used in an immigration case, to prove that an African boy really was his parents’ son.·In 1986, it was used for the first time in a British criminal case: It cleared one suspect after being accused of two murders and helped convict another man.

DNA testing is now very common. In Britain, a national criminal database established in 1995 now contains 2.5 million DNA samples. The U.S. and Canada are developing similar systems. But there are fears about the stored DNA samples and how they could be used to harm a person’s privacy. That includes a person’s medical history, racial origin or psychological profile. “There is the long-term risk that people can get into these samples and start getting additional information about a person’s paternity(父子关系) or risk of disease,” Jeffrey said.

DNA testing is not an unfailing proof of identity. Still, it is considered a reasonably reliable system for determining the things it is used for. Jeffrey estimates the probability of two individuals’ DNA profiles matching in the most commonly used tests at one in a billion.

62. According to the text, DNA testing can NOT be used in _______ .

A. doing criminal investigations        B. deciding faraily law

C. clearmg wrongly accused people     D. telling twins apart

63. DNA samples are not popular with all the people because _______ .

A. the government in Britain establishes a criminal database

B. the US and Canada develop similar systems

C. DNA samples can be used to harm a person’s privacy

D. DNA testing is too expensive and dangerous now

64. Where will you most probably find this article?

A. In a guidebook.                   B. In a storybook.

C. In a science fiction.                D. In a scientific magazine.

65. Which is the best title for the passage?

A. Discovery of DNA testing by Jeffery  B. Practice of DNA testing in court

C. DNA testing in the present situation   D.Benefits and side effects of DNA testing

A week ago, I had the great pleasure of reading an e-book, When Money Talks, Listen! By Rich Ezzo．It took only about an hour to read.

   When I first received a copy, I thought it was a Get Rich Quick type of publication．Nothing is wrong with Get Rich Quick, but my mind just doesn’t chase after dreams of wealth．I think that if God ever wants me to be rich, he knows where to find my purse.

   When I began reading When Money Talks, Listen!, I was overjoyed to find that Rich Ezzo isn’t money hungry either．He, too, is hungry far more important than money．

Since I love this e-book so much, why wait a week to write the review? Simple．I wanted to see if the effect it had on me was a keeper．After reading the last word of the e-book, I totally agreed with the subtitle which promised to forever change the way we thought about money．I had so many thoughts running around my mind that I had to install(安装) a stoplight to stop some while others made their way into the picture, then I yielded(让路) them as a few ones arrived in town．I had a mental traffic jam, which only goes to show how slow the traffic usually is．

   It has been a week and the effect is the same．I truly do look at money differently and have even done a few things differently this week．This is an e-book you’ll want to read, I promise．I often recommend books to my daughter, and this is one that I didn’t just “suggest”---I left it open at the bottom of the computer and told each one, “Read it, you’ll love it.”

   I would never point someone in a direction I wouldn’t go myself．I urge you to visit the author’s website, Myster Money, and to download the e-book．You won’t regret it.

The author wrote this passage to _________　

       A．strongly recommend an e-book.

　    B．show the author's attitude to money.

　    C．introduce the general idea of an e-book.

　    D．point out Rich Ezzo isn't money hungry.

According to the passage, a Get Rich Quick type of publication ______.

       A．is what the author really cares for

       B．deals with how to make money

       C．is also an e-book written by Rich Ezzo

       D．is more popular than e-books

The author didn't write the review as soon as he finished reading the book because________．

　    A．he was too excited to write anything

　    B．he was not sure whether he did well

　    C．he had to wait for Rich Ezzo's permission

　    D．he wondered if the book would have long influence on him

By saying the underlined sentence in Paragraph 4, the author probably __________.

　    A．shows that the book brought him many new thoughts

　    B．shows how bad the traffic is in town

　    C．describes the difficulty in understanding the book

　    D．explains it's hard to change one's attitude to money

Which of the following is supported by the passage?

      A．The author had known Rich Ezzo before.

　    B．The author hasn't dreamed of getting rich immediately.

　    C．The author always prefers e-books to paper books.

　    D．The author likes Get Rich Quick-type of publications.

A new study says one part of the human brain may become smaller as the result of a condition known as jet lag. Jet lag results from flying long distances in an airplane. People with jet lag may feel extremely tired for several days. They may also have problems thinking clearly and remembering.

Recently a researcher at the University of Bristol in Britain reported the findings of his jet lag study, which involved twenty young women who worked for international airlines. They had served passengers on airplanes for five years. These flight attendants flew across many countries and at least seven time zones. In the study, the flight attendants had different amounts of time to recover from jet lag. Half the women spent five days or fewer in their home areas between long flights The other half spent more than fourteen days in their home areas.

The researcher took some saliva from the women's mouths to measure levels of a hormone(荷尔蒙) that increases during stress (紧张). He tested them to see if they could remember where black spots appeared on a computer screen. And he took pictures of their brains to measure the size of the brain's temporal lobes (脑叶).

It was found that the women who had less time between flights had smaller right temporal lobes. This area of the brain deals with recognizing and remembering what is seen. The same group performed worse and had slower reaction times on the visual memory test. And their saliva samples showed higher levels of stress hormones.

The researcher believes the brain needs at least ten days to recover after a long trip. He says airline workers told him their ability to remember got worse after working on planes for about four years. Other studies have shown that increased feelings of stress can cause a loss of cells in the part of the brain that controls memory.

Scientists say more tests are needed to study the effects of jet lag on the brain. They want to find out if too much jet lag could permanently (永久性的) affect memory.

According to the text, jet lag _________.

A. can cause difficulties in speaking

B. can make people feel tired for a few weeks

C. can be only found in flight attendants

D. can be caused by flying over several time zones

It can be inferred from the text that _________.

A. the conclusion is refused by many scientists

B. scientists fear that this research is not done properly

C. every scientific conclusion needs the support from many tests

D. the women who were examined in the research were not healthy

From the result of the research we can see that _________.

A. the women who have longer rest at home show better memory

B. the women who fly in short time have smaller right temporal lobes

C. the women who have longer flights fail the memory test

D. the women who rest more than 14 days produce less hormones

What is the subject discussed in the text?

A. The cause of jet lag.      B. A story of a group of flight attendants.

C. The importance of having enough rest after flights.

D. A research about the effects of jet lag on the brain.

A powerful earthquake struck the northeastern coast of Japan at two forty-six p.m. local time on March eleventh.2011. Japan's Meteorological Agency released its first tsunami（海啸） warnings just three minutes later. The country has one of the best earthquake early warning systems in the world.

There are more than four thousand Seismic Intensity Meters in place throughout Japan to measure earthquake activity. These meters provide information within two minutes of an earthquake happening. Information about the strength and the center of the earthquake can be learned within three minutes.

There are also concrete(混凝土) sea walls around much of the Japanese coastline. But these measures proved no match for the powerful earthquake and tsunami.

Costas Synolakis ，a tsunami expert at the University of Southern California in Los Angeles said，"Japan is one of those most well-prepared countries on earth in terms of tsunami warning. They had a warning. I think what went wrong is that they had not expected the size of this event."

He says there are two reasons for this. Japan has not had any event anywhere near as big as this one in the last one hundred fifty years. And scientists had not expected such a large earthquake happening off the coast of Japan.

The nine point zero magnitude earthquake was the fourth most powerful earthquake ever recorded worldwide. It was also the worst earthquake ever to hit Japan. The tsunami waves that followed were reported to have reached as high as thirteen meters in some areas.

Costas Synolakis says Japan's concrete sea walls were not built to handle such high waves.

Experts say early warning systems will continue to be limited by these facts until earthquakes and tsunamis can be predicted

Where can this passage probably be adapted from?

    A．A magazine on science       B．A fairy Tale 

C．A scientific fantasy book     D．A newspaper  

Which of the following statements NOT true ?

    A. A terrible earthquake hit the northeastern coast of Japan

    B. It was also the worst earthquake in Japan

C. The 9.0 earthquake was the fourth most powerful earthquake ever recorded in Japan

D. Japan's concrete sea walls was unable to handle such high waves.

According to Costas Synolakis, why did Japan suffer such a loss?

  A. The country has never experienced any event as big as this one over the past 150 years

B. Japan has the best earthquake early warning systems in the world.

C. There are not concrete sea walls around all of the Japanese coastline

D. The government didn’t announce its first tsunami warnings three minutes earlier.

   A week ago, I had the great pleasure of reading an e-book, When Money Talks, Listen! By Rich Ezzo. It took only about an hour to read.

   When I first received a copy, I thought it was a Get Rich Quick type of publication. Nothing is wrong with Get Rich Quick, but my mind just doesn’t chase after dreams of wealth. I think that if God ever wants me to be rich, he knows where to find my purse.

   When I began reading When Money Talks, Listen!, I was overjoyed to find that Rich Ezzo isn’t money hungry either. He, too, is hungry far more important than money.

Since I love this e-book so much, why wait a week to write the review? Simple. I wanted to see if the effect it had on me was a keeper. After reading the last word of the e-book, I totally agreed with the subtitle which promised to forever change the way we thought about money. I had so many thoughts running around my mind that I had to install(安装) a stoplight to stop some while others made their way into the picture, then I yielded(让路) them as a few ones arrived in town. I had a mental traffic jam, which only goes to show how slow the traffic usually is. 

   It has been a week and the effect is the same. I truly do look at money differently and have even done a few things differently this week. This is an e-book you’ll want to read, I promise. I often recommend books to my daughter, and this is one that I didn’t just “suggest”---I left it open at the bottom of the computer and told each one, “Read it, you’ll love it.”

   I would never point someone in a direction I wouldn’t go myself. I urge you to visit the author’s website, Myster Money, and to download the e-book. You won’t regret it.

The author wrote this passage to _________　

A. strongly recommend an e-book.

　B. show the author's attitude to money.

　C. introduce the general idea of an e-book.

　D. point out Rich Ezzo isn't money hungry.

According to the passage, a Get Rich Quick type of publication ______.

A. is what the author really cares for

B. deals with how to make money

C. is also an e-book written by Rich Ezzo

D. is more popular than e-books

The author didn't write the review as soon as he finished reading the book because________.

　A. he was too excited to write anything

　B. he was not sure whether he did well

　C. he had to wait for Rich Ezzo's permission

　D. he wondered if the book would have long influence on him

By saying the underlined sentence in Paragraph 4, the author probably __________.

　A. shows that the book brought him many new thoughts

　B. shows how bad the traffic is in town

　C. describes the difficulty in understanding the book

　D. explains it's hard to change one's attitude to money

Which of the following is supported by the passage?

  A. The author had known Rich Ezzo before.

　B. The author hasn't dreamed of getting rich immediately.

　C. The author always prefers e-books to paper books.

　D. The author likes Get Rich Quick-type of publications.