Number　 sense is not the ability to count. It is the ability to recognize a 　 1　 in number. Human beings are born with this ability. 2 ，experiments show that many animals are, too. For example, many birds have good number sense. If a nest has four eggs and you remove one, the bird will not　 3 . However, if you remove two, the bird 4 leaves. This means that the bird knows the 　5　 between two and three.

Another interesting experiment showed a bird's 6 number sense. A man was trying to take a photo of a crow(乌鸦)that had a nest in a tower, but the crow always left when she saw him coming. The bird did not 7 until the man left the tower. The man had an 8 .He took another man with him to the tower. One man left and the other stayed, but they did not 9 the bird. The crow stayed away until the second man left, too. The experiment was　 10 with three men and then with four men. But the crow did not return to the nest until all the men were 11 .It was not until five men went into the tower and only four left that they were 12 able to fool the crow.

How good is a human's number sense? It's not very good. For example, babies about fourteen months old almost always notice if something is taken away from a 　13 group. But when the number goes beyond three or four, the children are 14　 fooled.

It seems that number sense is something we have in common with many animals in this world, and that our human 15 is not much better than a crow's.

1. A. rise　　　　　　　 B. pattern　　　　　　　　　　　　　 C. change　　　　　　　　　　 D. trend

2. A. Importantly　 B. Surprisingly　 C. Disappointedly D. Fortunately

3. A. survive　　　　　　　　 B. care　　　　　　　　 C. hatch　　　　 D. notice

4. A. generally 　　　　　　 B. sincerely　　 C. casually　　　　　 D. deliberately

5．A. distance 　　　　　 B. range　　　　 C. different　 　　　 D. interval

6．A. amazing 　　　　　 B. annoying　　　　　 C. satisfying　 D. disturbing

7. A. relax　　　　　　　　　 B. recover　　　　　　 C. react　　　　 D. return

8. A. appointment　　　　 B. excuse　　　　　　 C. idea　　　　　 D. explanation

9. A. fool　　　　　　　　　　 B. hurt　　　　　 C. catch　　　　 D. kill

10.A. repo　　　　　　　　　　　　　 B. repeated　　 C. designed　　 D. approved

11.A. confused　　　　　　 B. gone　　　　 C. tired　　　　　 D. drunk

12.A. gradually　　　　　　 B. luckily　　　 C. strangely　 D. finally

13.　 A. single　　　　　　　 B. small　　　　 C. local　　　　 D. new

14. A. seldom　　　　　　　 B. temporarily C. merely　　　 D. often

15. A. sight　　　　　　　　　 B. nature　　　 C. ability　　　　 D. belief

　　An explosion on Thursday killed one and injured 21 in a busy street in Tongren, Southwest China’s Guizhou Province.

　　The bomb was hidden in a rubbish bin in the city’s commercial hub（商业中心），where lots of shops and restaurants are concentrated.

　　The ear-splitting blast was heard around 12∶50 p.m.，said a local newspaper, citing witnesses. The power of the blast shattered（使粉碎）nearby shop windows and ripped the stainless（不生锈的）steel rubbish can to pieces.

　　One passer-by，identified（确认）only as Zhang，said she was shocked by the noise and saw a lot of pedestrians lying on the ground when she got to the scene.

　　Thirteen of the injured were taken to a local hospital after the explosion. A doctor there said five were in serious condition but already out of danger after emergency treatment. The others were just slightly hurt.

　　The cause of the explosion is still under investigation, said an officer with the Tongren police, but refused to speculate as to the cause.

　　It can be inferred from the passage that ________.

　　A. All the injured were taken to a hospital

　　B. 8 of the injured were not taken to a hospital

　　C. The rubbish bin with a bomb was in a restaurant

　　D. The rubbish bin with a bomb was in a shop

　　Which of the following statements is true according to the passage?

　　A. One passer- by, indentified only as Zhang, saw the man throwing a bomb into a bin.

　　B. Some customers in restaurants were injured.

　　C. The writer didn’t get to the scene.

　　D. All customers in shops got hurt.

　　In the last paragraph the underlined word“ speculate” probably means ________.

　　A. tell　　　　　　　　　　　　　 B. guess

　　C. discuss　　　　　　　　　　　　D. talk

　　What of the follwing can be the best title for the passage?

　　A. Bomb Hidden in a Rubbish Bin

　　B. The Cause of the Explosion

　　C. A Terrible Thing

　　D. Market Blast Kills 1 ,Injures 21

A person named Bernard Jackson today is a free man, but he has many bitter memories. He spent five years in prison after a jury (陪审团)wrongly convicted (判处…有罪) him of raping two women. At Jackson’s trial, although two witnesses testified that Jackson was with them in another location at the time of the crime, he was convicted  anyway. Why? The jury believed the testimony(证词)of the two victims, who positively identified Jackson as the man who had attacked them. The court eventually freed Jackson after the police found the real criminal.

Many factors influence the accuracy of eyewitness testimony. For instance, witnesses sometimes see photographs of several suspects before they try to identify the person they saw in a group of people. They can become confused by seeing many photographs of similar faces. The number of people in the group, and whether it is a person or a photograph, may also affect a witness’s decision. People sometimes have difficulty identifying people of other races. The questions the police ask witnesses also have an effect on them.

Many people believe that police officers are more reliable than ordinary people. Psychologists decided to test this idea, and they discovered that it is not true. Two psychologists showed a film of crimes to both police officers and civilians. The psychologists found no difference between the police and the civilians in correctly remembering the details of the crimes.

Despite all the possibilities for inaccuracy, courts cannot omit eyewitness testimony from a trial. American courts depend almost completely on eyewitness testimony to resolve(决定)court cases. Sometimes it is the only evidence to a crime, such as rape. Furthermore, eyewitness testimony is often correct. Although people do sometimes make mistakes, and convict innocent people, more importantly, eyewitness testimony has rightly convicted a larger number of guilty people.

American courts depend on the ability of the twelve jurors, and not the judges, to determine the accuracy of the witness’s testimony. It is their responsibility to decide if a certain witness could actually see, hear and remember what happened.

1.Bernard Jackson was found guilty and sentenced 5 years’ prison because________.

A. the victims insisted that he was the attacker

B. he admitted the crime of raping two women

C. the police discovered evidence leading to his guilt

D. the eyewitness proved the victims’ testimony

2.The following statements may be the reasons for why sometimes the eyewitness’ testimony is not accurate EXCEPT ________.

　A. the eyewitness is confused by the police’s questions

　B. the eyewitness is shown photos of many similar faces

　C. the eyewitness lacks the professional help from police

D. the eyewitness can’t identify people of other races clearly.

3.An inaccurate eyewitness testimony may lead to________.

A. the misunderstanding of the case      

B. the disbelief in the court

C. the disrespect for the eyewitness      

D. the conviction of an innocent person

4.Eyewitness testimony is important because ___________.

  A. it can be relied on to detect criminals in all cases.

  B. it is sometimes the only way to resolve court cases.

  C. it is sometimes the only clue for police investigation.

  D. it is more reliable than physical evidences to a crime.

5. According to the text, we can infer that ________.

A. eyewitness testimony is valuable, though sometimes incorrect.

B. police identification is more reliable than that of the ordinary people

C. crime victims often fail to give positive identification of the suspects

D. the jury relies on the judge than the eyewitness for a decision

阅读下面短文，从短文后所给各题的四个选项（A、B、C、D）中选出能填入空白处的最佳选项。

Many children may be fond of animals, but few ever think of making the study of animals their career(职业).Even fewer will be   1    by the whole world,   2    the title of United Nations Messenger(使者) of Peace.

But one woman has    3    all that. She has lived with chimpanzees in the African forest for more than 20 years and made great    4   .This woman is Jane Goodall. She was born in London, England, in 1934.Goodall’s lifelong    5    in animals began at an early age. By the age of 10 or 11,Goodall    6    going to Africa to live with animals. This was quite a strange dream in those days, as young    7    didn’t think of having such “wild” actions. But she was   8    by her mother. She told her that if she really wanted something, she should work hard, take advantage of   9   and never give up looking for a way.

When a close friend invited Goodall to Kenya in 1957,she readily   10   .Within a few months of her arrival she met the famous anthropologist(人类学家) Dr. Louis Leakey, who soon decided that Goodall was the    11    person he was looking for to begin a    12    of wild chimpanzees on the shore of Lake Tanganyika in Tanzania.

In July 1960, Goodall arrived at Gombe National Park in Tanzania. At the beginning, studying the chimpanzees was not    13   for her. The animals fled from her   14   , so it took months for her to get close to them. With a strong   15   , she searched the forest every day, trying not to get too close to the chimpanzees too   16   . Gradually the chimpanzees became used to her presence.

She discovered many things of chimpanzees during her first years at Gombe National Park. In October 1960,she observed a chimpanzee making and using   17    to fish for termites (白蚁).This discovery threw    18    on the popular idea at the time that Man was the world’s only toolmaker. The longer Goodall’s research continues, the more it becomes obvious that chimpanzees are very   19    to humans.

Since the mid-1980s, Goodall has been lecturing around the world to raise people’s sense about environmental    20   . “Let’s live in the new age with hope, respect for all living things, understanding and love,” she said.

1.A. recognized　　  　　　　　　  B. known　　　　　　　　　　 C. accepted　　　　   D. admitted

2.A.receiving　　　　　　　　　　   B. giving　　　　　　    C. enjoying　　　　    D. having

3.A.done　　　　　　　　　　　　　　 B. proved　　　　　　　　　　 C. achieved　　　　    D. realized

4.A.discoveries　　　　　　　　    B. decisions　　　　   C. choices　　　　　　 D. findings

5.A.study　　　　　　　　　　　　　　　　   B. interest　　　　　　  C. sense　　　　   &n

bsp;    D. dream

6.A.was fond of 　　　　　　　　 B. tired of　　　　　　  C. insisted on 　　　　　　  D. dreamed of

7.A.boys　　　　　　　　　　　　　　 B. girls　　　　　　　　  C. men　　　　　　　　  D. women

8.A.encouraged　　　　　　　　    B. prevented　　　　  C. advised　　　　　　 D. forced

9.A.knowledge　　　　　　　　　　 B. youth　　　　　　    C. hope　　　　　　　　 D. chances

10.A.accepted　　　　　　　　　　  B. refused　　　　　　  C. hesitated　　　　    D. considered

11.A.only　　　　　　　　　　　　　　 B. last　　　　　　　　   C. special　　　　　　　　　　 D. first

12.A.project　　　　　　　　　　　　 B. study　　　　　　    C. center　　　　　　   D. career

13.A.hard　　　　　　　　　　　　　　　　   B. interesting　　　　  C. easy　　　　　　　　  D. convenient

14.A.in surprise　　　　　　　　    B. in a hurry　　　　  C. as expected　　　　　　  D. in fear

15.A.will　　　　　　　　　　　　　　 B. body　　　　　　　　 C. desire　　　　　　    D. mind

16.A.far　　　　　　　　　　　　　　  B. near　　　　　　　　  C. soon　　　　　　　　 D. much

17.A.nets　　　　　　　　　　　　　　 B. tools　　　　　　　　 C. holes　　　　　　　　 D. spoon

18.A.doubt　　　　　　　　　　　　  B. light　　　　　　　　  C. questions　　　　   D. beliefs

19.A.close　　　　　　　　　　　　   B. similar　　　　　　   C. friendly　　　　　　 D. helpful

20.A.improvement　　　　　　    B. protection　　　　  C. pollution　　　　    D. destruction