Even plant can run a fever, especially when they’re under attack by insects or disease. But unlike human, plants can have their temperature taken from 3, 000 feet away straight up. A decade ago, adopting the infrared （红外线）scanning technology developed for military purposes and other satellites, physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress. The goal was to let farmers precisely target pesticide （杀虫剂）spraying rather than rain poison on a whole field, which invariably includes plants that don’t have pest （害虫）problems.

　　Even better, Paley’s Remote Scanning Services Company could detect crop problems before they became visible to the eye. Mounted on a plane flown at 3, 000 feet at night, an infrared scanner measured the heat emitted by crops. The data were transformed into a color-coded map showing where plants were running“fevers”. Farmers could then spot-spray, using 50 to 70 percent less pesticide than they otherwise would.

　　The bad news is that Paley’s company closed down in 1984, after only three years. Farmers resisted the new technology and long - term backers were hard to find. But with the renewed concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to get back into operation. Agriculture experts have no doubt the technology works. “This technique can be used on 75 percent of agricultural land in the United States, ” says George Oerther of Texas A & M. Ray Jackson , who recently retired from the Department of Agriculture, thinks remote infrared crop scanning could be adopted by the end of the decade. But only ff Paley finds the financial backing which he failed to obtain 10 years ago.

Plants will emit an increased amount of heat when they are______________.

A. sprayed with pesticides　　        

B. facing an infrared scanner

C. in poor physical condition　　      

D. exposed to excessive sun rays

In order to apply pesticide spraying precisely, we can use infrared scanning to____________.

A. estimate the damage to the crops　　

B. measure the size of the affected area

C. draw a color-coded map　　       

D. locate the problem area

Farmers can save a considerable amount of pesticide by______________.

A. resorting to spot-spraying　　     

B. consulting infrared scanning experts

C. transforming poisoned rain　　    

D. detecting crop problems at an early stage

The application of infrared scanning technology to agriculture met with some difficulties

_______________.

A. the lack of official support　　    

B. its high cost

C. the lack of financial support　     

D. its failure to help increase production

Infrared scanning technology may be brought back into operation because of_____________.

　　A. the desire of farmers to improve the quality of their produce

　　B. growing concern about the excessive use of pesticides on crops

　　C. the forceful promotion by the Department of Agriculture

　　D. full support from agricultural experts                  

　　Even plant can run a fever, especially when they’re under attack by insects or disease. But unlike human, plants can have their temperature taken from 3, 000 feet away - straight up. A decade ago, adopting the infrared （红外线）scanning technology developed for military purposes and other satellites, physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress. The goal was to let farmers precisely target pesticide （杀虫剂）spraying rather than rain poison on a whole field, which invariably includes plants that don’t have pest （害虫）problems.
　　Even better, Paley’s Remote Scanning Services Company could detect crop problems before they became visible to the eye. Mounted on a plane flown at 3, 000 feet at night, an infrared scanner measured the heat emitted by crops. The data were transformed into a color - coded map showing where plants were running“ fevers”. Farmers could then spot - spray, using 50 to 70 percent less pesticide than they otherwise would.
　　The bad news is that Paley’s company closed down in 1984, after only three years. Farmers resisted the new technology and long - term backers were hard to find. But with the renewed concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to get back into operation. Agriculture experts have no doubt the technology works. “This technique can be used on 75 percent of agricultural land in the United States, ” says George Oerther of Texas A & M. Ray Jackson , who recently retired from the Department of Agriculture, thinks remote infrared crop scanning could be adopted by the end of the decade. But only ff Paley finds the financial backing which he failed to obtain 10 years ago.
　56．Plants will emit an increased amount of heat when they are________.
　　A. sprayed with pesticides     B. facing an infrared scanner
　　C. in poor physical condition   D. exposed to excessive sun rays
　57．In order to apply pesticide spraying precisely, we can use infrared scanning to________.
　　A. estimate the damage to the crops    B. measure the size of the affected area
　　C. draw a color -coded map          D. locate the problem area
　58．Farmers can save a considerable amount of pesticide by________.
　　A. resorting to spot – spraying   B. consulting infrared scanning experts
　　C. transforming poisoned rain    D. detecting crop problems at an early stage
　59．The application of infrared scanning technology to agriculture met with some difficulties________.,
　　A. the lack of official support        B. its high cost
　　C. the lack of financial support      D. its failure to help increase production
　60．Infrared scanning technology may be brought back into operation because of________.
　　A. the desire of farmers to improve the quality of their produce
　　B. growing concern about the excessive use of pesticides on crops
　　C. the forceful promotion by the Department of Agriculture
　　D. full support from agricultural experts

At the age of 13，I visited a doctor with my parents. As I sat in the examining chair，the doctor looked into my 　31　.“She did inherit (继承) it，”he said with coldness.“You need to be prepared. There is no 　32　 for this disease.”

My father 　33　 a gene which，in most cases，results in blindness. I’d inherited the gene. He gradually 　34　 his eyesight and so did I. At last we were both 　35　 blind—he was fifty-seven years old，　36　 I was only twenty-eight.

My world 　37　 as the darkness fell，　38　 the dreams my husband and I had for us and for our three little boys. But 　39　 I tried to find some hope and 　40　，my eyes were opened to a new realization.

My father had 　41　 me not just failing eyesight，but an example of 　42　 in the face of hardships as well. We were all living in Bolivia in 1964 when he decided to 　43　 the family to America. He worked tirelessly to 　44 the right of living in the US.

Alone in the States，he 　45　 his helplessness and lack of fluency in English. He managed to rent a small apartment，and nine months later，sent airline tickets for my mom，my brother and me.

Decades later，　46 an American citizen，I look back at what he'd shown me. He set an example proving that determination is important to success. His 　47　 taught me valuable lessons for my own path in the darkness.

I did the same as I stepped into a 　48　 world. I fulfilled (完成) my own 　49　 as a wife，mom，Sunday school teacher and Spanish interpreter. What I inherited from my father helped me to 50　 my life in a whole new light.

1.A.mouth           B.eyes          C.ears          D.throat

2.A.solution         B.reason         C.excuse          D.cure

3..A.carried            B.spread            C.infected      D.raised

4.A.damaged         B.lost         C.recovered     D.gained

5.A.rapidly         B.nearly         C.completely       D.terribly

6.A.though              B.but               C.so                D.since

7.A.broke down      B.broke off     C.broke away        D.broke out

8.A.realizing           B.sharing      C.disturbing        D.destroying

9.A.when            B.before         C.unless           D.until

10.A.honour         B.beauty            C.strength      D.failure

11.A.handed         B.rewarded      C.given         D.taught

12.A.contribution       B.determination C.challenge     D.honesty

13.A.move           B.settle            C.arrange           D.send

14.A.enjoy           B.declare          C.apply         D.win

15.A.accepted       B.admitted      C.overcame      D.met

16.A.as                 B.like          C.for            D.to

17.A.knowledge      B.journey           C.situation          D.event

18.A.cruel          B.inner             C.modern         D. dark

19.A.promises       B. hopes            C. roles            D. changes

20.A.touch          B. end          C. save           D. see

Much meaning can be conveyed with our eyes, so it is often said that eyes can speak.

Do you have such kind of 　36 ? In a bus you may look at a 　37 , but not too long. And if he is 　38 that he is being stared at, he may feel 　39 .

The same is true in 　40 life. If you are looked at for more than 　41 ,you will look at yourself up and down, to see if there is 42 wrong with you. If nothing goes wrong, you will feel angry toward other’s 　43 at you that way.

Looking too long at someone may seem to be rude and 　44 . But things are different when it 45 to stare at the opposite sex. If a man glances at a woman for more than ten seconds and 　46 to avert (移开) his gaze, his intentions are 　47 , that is , he wishes to attract her attention, to make her understand that he is 　48　 her.

49 , the normal eye contact for two people 　50　 in a conversation is that the speaker will only look at the listener 　51 , in order to make sure that the listener does pay attention to what the former is speaking about, to tell him that he is attentive. If a speaker looks at you continuously when speaking, 　52 he tries to dominate(控制) you, you will feel embarrassing.

In fact, continuous eye contact is confined to 　53 only, who will enjoy looking at each other tenderly for a long time, to show affection that 　54 cannot express.

Evidently, eye contact should be done according to relationship between two people and the specific 　55 .

36. A. experience　 B. thought　　　　　　 C. feeling　 　　　　　　 D. attitude

37. A. conductor　 　　　　　　 B. driver　　　　　 C. tourist　 　　　　　　 D. stranger

38. A. looking 　　　　　　 B. sensing　　　　 C. telling　　　　　 D. deciding

39. A. interested　　 　　　　　　 B. stupid　　　　　 C. uncomfortable　　　　 D. angry

40. A. social　　　　　 B daily　　　　 　　　　　　　 C. family 　　　　　　 D. school

41. A. friendly　　　 B. reliable　　　　　　 C. special　 　　　　　　 D. necessary

42. A. anything　　　　　　 B. somewhere 　　　　　　　 C. nothing　　　 D. anywhere

43. A. interest　　　 B. stare　　　　　　　　 C. appreciation D. notice

44. A. attentive　　　 　　　　　　 B. positive　　　　 C. aggressive　　 　　　　　　 D. active

45. A. comes　　　　 B. hopes 　　　　　　　 C. tries　　　　　 D. seems

46. A. starts　　　　　 B. refuses　　　 　　　　　　　C. manages　　　　　 D. aims

47. A. dirty　　　　　 B. unhealthy　　　　　 C. obvious　　　　 D. unfair

48. A. admiring　　　　　　 B. enjoying　　　　　 C. cheating　　　　 D. selecting

49 A. Therefore　　　　　　 B. Otherwise　　　　 C. Altogether　　　　　　 D. However

50. A. engaged　　　　　　 B. attracted　　 　　　　　　　C. trapped　　 　　　　　　 D. invited

51. A. all the time　 B. from time to time 　　　　 C. all the way　 　 　　　　　D. back and forth

52. A. in case　　　　 B. as if　　　　　　　　 C. even though　　　　 D. so that

53. A. mothers　　　　　　 B. children　　　　　　 C. lovers　　　　　 D. teachers

54. A. looks　　　　　 B. eyes　　　　　　　　 C. smiles　　 　　　　　　　 D. words

55. A. situation B. circumstance　　 C. environment　　　　　　 D. condition