The twin s were so much alike that it wa s impo s sible to one from the other． [ ] A．di stingui sh B．separate C．identify D．recognize 题目和参考答案——青夏教育精英家教网—

Roger Federer and Serena Williams have been named as 2009' s world champions by the International Tennis Federation（ITF） after topping the year-end rankings．

Federer, who wins the honour for the fifth time, completed a career Grand Slam（大满贯）at Roland Garros before winning his 15th Grand Slam ride at Wimbledon．

And Williams won the Australian Open and Wimbledon, her llth major success．

The pair will receive their awards at the annual 1TF world champions dinner in Paris in June．

Federer regained the world number one ranking from Rafael Nadal after his Paris victory and his Wimbledon win over Andy Roddick saw him surpass Pete Sampras' haul of Grand Slam titles．

He was also runner - up at the Australian Open and the US Open and helped his country retain its Davis Cup world group status．

" It is an honour for me to be named ITF world champion for a fifth time．It was an incredible （不可思议的） year for me both on and off the court," said the 28 - year - old Swiss star whose wife Mirka gave birth to twin girls in July．

"To win my first Roland, Garros title, break the all - time Grand Slam record and regain the number one ranking is amazing．It means a lot to me to finish the year again at the top．"

Williams takes the award for the first time since 2002．As well as her Grand Slam wins, she won the season - ending WTA Championships in Doha．sealing the top ranking in the last event of the year．

She also took the doubles year award with sister Venus after taking their career total to 10 Grand Slam titles．In doing so, she joins Lindsay Davenport and Martina Hingis as the only players to become singles and doubles world champions in the same year．

American twins Bob and Mike Bryan were named as the men' s doubles world champions for the sixth time in seven years．

What's the main idea of the text?

A．Roger Federer got his fifth world champions．

B．Serena Williams was named the ITF world champion．

C．Williams & Federer were named 2009' s world champions．

． D．Roger Federer won his first Roland Garros title．

What does Federer mean by saying that it was an incredible year for him off the court?

A．He made a lot of money．

B．His wife gave birth to twin girls．

C．He regained the world No.One ranking．

D．He got a Grand Slam title at Roland Garros．

In which country might Roland Garros Open take place?

A．France． B．Australia C．The United States D England．

____ has never got both singles and doubles world champions in a year．

A．Serena Williams B．Lindsay Davenport

C．Venus Williams D．Martina Hingis

Your cell phone holds secrets about you. Besides the names and numbers that you’ve programmed into it, traces of your DNA remain on it, according to a new study.
DNA is genetic material that appears in every cell. Like your fingerprint, your DNA is unique to you --- unless you have an identical twin. Scientists today usually analyze DNA in blood, saliva(唾液), or hair left behind at the scene of a crime. The results often help detectives identify criminals and their victims.
Meghan J. McFadden, a biologist at McMaster University in Hamilton, Ontario, heard about a crime in which the suspect bled onto a cell phone and later dropped the device. This made her wonder whether traces of DNA remained on cell phones --- even when no blood was involved. To find out, she and a colleague collected flip-style(翻盖式) phones from 10 volunteers. They collected invisible traces of the users from two parts of the phone: the outside, where the user holds it, and the speaker, which is placed at the user’s ear.
The scientists scrubbed(meaning “cleaned”) the phones using a liquid mixture made mostly of alcohol. The aim of washing was to remove all detectable traces of DNA. The owners got their phones back for another week. Then the researchers collected the phones and repeated collecting traces on each phone once more. They discovered DNA that belonged to the phone’s owner on each of the phones.
Surprisingly, DNA showed up even in swabs that were taken immediately after the phones were cleaned. That suggests that washing won’t remove all traces of evidence from a criminal’s cell phone. So cell phones can now be added to the list of clues that can help a crime-scene investigation.
【小题1】McFadden decided to find out whether people leave their DNA on their cell phones when she ____ .

A．got her cell phone lost by chance

B．found a cell phone with blood on it

C．heard about a crime involving a cell phone

D．did research on cell phones

【小题2】The scientists allowed the volunteers to keep their cell phones for a week in order to____.

A．let them leave their traces on their phones

B．avoid keeping their cell phones too long

C．give them a chance to get rid of their secrets

D．find out who is responsible for the crime

【小题3】The last paragraph mainly tells us that cell phones ____ .

A．do harm to people	B．should be often cleaned
C．disclose people’s secrets	D．help deal with crimes

【小题4】Which of the following is NOT mentioned in the passage?

A．The reason for collecting the phones from volunteers.

B．The technique of collecting DNA on the phones.

C．The method of removing traces of DNA on the phones.

D．The purpose of washing the cell phones.

第二节：完形填空(共20小题；每小题1.5分，满分30分)

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

When my son was 11 years old, he got a small job helping out with a traveling carnival in our town. He didn't come home at lunch time, phoning 36 to tell me he was fine and had found a few days' work 37 out at an exhibit. However, after he finished work he 38 for supper as usual.

I asked him how he had 39 at lunch and he told me he had made some new 40 at the carnival, some young men who were twin brothers, and their mom and dad. They had 41 him a few dollars and invited him for lunch 42 for helping them set up their exhibit and wanted him to 43 the next day to help with other chores (杂务).

I was glad he had found new friends but a little 44 about the type of people who might be traveling in a carnival. "Oh, Mum, these are just 45 everyday people like anyone else. They 46 work at a carnival instead of in a store or something". "Come down tomorrow and 47 them yourself," he said.

So the next day I went to the carnival and to the exhibit he had 48 me to. The twin brothers _49 out to be Siamese (连体的) twins, joined at the chest. He hadn't thought this 50 was noteworthy enough to mention. When I brought it to him, he said, "yes, I 51 that too. Do you know that their mum has to make all their clothes 52 it's so difficult to find anything to fit them? They're also really good 53 . Today, Joe, one on the fight, made me spaghetti (意大利面条) for lunch. "

What others see first in a person is not what a child considers 54 . Where I saw Siamese twins, he saw people having difficulty buying clothes that fit, and young men who were good cooks. It was a _55 I have thought about many times over the years.

36. A. instead B. even C. also D. besides

37. A. helping B. helping C. taking D. showing

38. A. did up B. gave up C. took up D. turned up

39. A. sought B. managed C. worked D. acted

40. A. clothes B. friends C. choices D. differences

41. A. paid B. charged C. lent D. owed

42. A. by chance B. in return C. by turns D. in advance

43. A. return B. promise C. consider D. decide

44. A. excited B. regretful C. worried D. optimistic

45. A. humorous B. obvious C. particular D. normal

46. A. just B. never C. hardly D. always

47. A. teach B. meet C. affect D. join

48. A. ordered B. directed C. forced D. persuaded

49. A. worked B. left C. came D. turned

50. A. expression B. change C. fact D. idea

51. A understood B. made C. noticed D. formed

52. A. before B. if C. after D. because

53. A. cooks B. doctors C. artists D. singers

54. A. necessary B. important C. impossible D. unlucky

55. A. lesson B. festival C. task D. match

Your cell phone holds secrets about you. Besides the names and numbers that you’ve programmed into it, traces of your DNA remain on it, according to a new study.

DNA is genetic material that appears in every cell. Like your fingerprint, your DNA is unique to you --- unless you have an identical twin. Scientists today usually analyze DNA in blood, saliva(唾液), or hair left behind at the scene of a crime. The results often help detectives identify criminals and their victims.

Meghan J. McFadden, a biologist at McMaster University in Hamilton, Ontario, heard about a crime in which the suspect bled onto a cell phone and later dropped the device. This made her wonder whether traces of DNA remained on cell phones --- even when no blood was involved. To find out, she and a colleague collected flip-style(翻盖式) phones from 10 volunteers. They collected invisible traces of the users from two parts of the phone: the outside, where the user holds it, and the speaker, which is placed at the user’s ear.

The scientists scrubbed(meaning “cleaned”) the phones using a liquid mixture made mostly of alcohol. The aim of washing was to remove all detectable traces of DNA. The owners got their phones back for another week. Then the researchers collected the phones and repeated collecting traces on each phone once more. They discovered DNA that belonged to the phone’s owner on each of the phones.

Surprisingly, DNA showed up even in swabs that were taken immediately after the phones were cleaned. That suggests that washing won’t remove all traces of evidence from a criminal’s cell phone. So cell phones can now be added to the list of clues that can help a crime-scene investigation.

1.McFadden decided to find out whether people leave their DNA on their cell phones when she ____ .