—Oh, it’s you! I _____ you.

—I’ve just had my hair cut, and I'm wearing new glasses.

A. didn’t recognize         B. hadn’t recognized  

C. haven’t recognized　     D. don’t recognize

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

     Apparently，we are safe neither at home nor in the business office.We use water in both places，but the research shows that chemicals added to our local water supply to kill harmful bacteria can have unwanted side effects.These chemicals can cause potential harm through drinking and in seemingly harmless activities as cleaning one’s house.They are released(set free)from water by daily actions like water running out of tap，spraying from garden pipes，or splashing in dishwashers and washing machines.As the water is moving.these chemicals are released into the air and then breathed in. Once inside our bodies, they start to affect our health.

　　Does this mean we should stop bathing? No, say the scientists, but we should put all pollution into perspective. Activities at home such as the burning of coal, cooking oil, or even candles release carbon monoxide and particulates such as cigarette ashes which have been proven as harmful to health as working or living near heavy traffic. New tugs, bedding, and even clothing give off that“new smell, ”which is a sure sign of chemicals. In the office, newly applied paint, newly purchased telephones and other telecommunications equipment, and computers release polluting chemicals, too. As offices and homes often have inadequate ventilation (通风), these chemicals can build up to become health problems. Their poisonous effects are only now being slowly recognized.

　　These facts suggest that, at a minimum, proper airing of newly purchased goods with an obvious chemical smell is a wise warning. Home and office windows should be opened during good weather. Even one’s car needs to be ventilated as well while in the garage.

　　We need further research to understand better other potential health dangers, too. For example, the effects of overcrowding of schools (carbon dioxide build-up ), the factory work environment ( an endless list of potentially dangerous substances ), and even home heating and cooling (the air conditioner may be our enemies, not our friends) have only recently started to come to light. Until we understand the effects of our new technological environment better, we can only hope that“there is no place like home.”

1.What is the main idea of the first paragraph?

　　A.The air we breathe in is harmful.

B.Chemicals are released in the running water.

C.Chemicals are added to the drinking water.

　　D. The water in everyday use is unsafe.

2..In Paragraph 2, the underlined sentence means that .

　　A. homes and offices should be aired often

　　B. any pollution should be taken into consideration

　　C. bathing should be done with caution

　　D.we should prevent any pollution from doing harm to us

3.What is the purpose of the passage?

　　A.To call on us to guard our water.

　　B.To show us that no place is like home.

　　C.To make us aware of the pollution around us.

　　D.To argue that neither homes nor offices are safe.

 —Oh, it’s you! I _____ you.

—I’ve just had my hair cut, and I'm wearing new glasses.

A. didn’t recognize 　  B. hadn’t recognized   

C. haven’t recognized　   D. don’t recognize