完形填空（共15小题；每小题2分，满分30分）
阅读下面短文，掌握其大意，然后从下列各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
The human nose is an underestimated tool. Humans are often thought to be  1___ smellers compared with animals, but this is largely because, unlike animals, we stand upright. This means that our noses are  2 to detecting those smells which float through the air,  3  the majority of smells which stick to surfaces. In fact though, we are extremely sensitive to smells, even if we do not generally realize it. Our noses are capable of  4 human smells even when these are  5  to far below one part in one million.
　　  6    , some people find that they can smell one type of flower but not another, while others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate  7    smell receptors in the nose. These receptors are the cells which sense smells and send  8   to the brain. However, it has been found that even people insensitive to a certain smell at first can suddenly become sensitive to it when  9    to it often enough.
　　The  10  for insensitivity to smell seems to be that brain finds it  11   to keep all smell receptors working all the time but can  12  new receptors if necessary. This may also explain why we are not usually sensitive to our own smells we simply do not need to be. We are not  13    of the usual smell of our own house but we  14    new smells when we visit someone else's. The brain finds it best to keep smell receptors _ 15   for unfamiliar and emergency signals such as the smell of smoke, which might indicate the danger of fire.

What an exciting day it was for Jennifer and Valerie! They　26　　friends since Grade Three and had  27　many of their high school experiences. Now they were driving together to their final high school event. Today was　28　day at Laman High School.　 29　they were close friends, they were different in many ways. Jennifer was a fairly　30　　student while Valerie did just enough to get by and was mainly　31　　in a good social life.

"Isn't it　32　　that we're all finished?" said Valerie. "I'm really looking forward to having a　33　　time this summer."

"　 34　　be nice,"　Jennifer replied. "I'm afraid I'm going to have to work most of the summer to help pay for my college expenses. "

Jennifer's parents had only a small　35　　and she had made up her mind to have a career in which he could　36　　all the things her　37　　could not.

Valerie,　 38　　, came firm a fairly wealthy family. She had little desire to work hard for　　39　　she had always taken for granted.

"I really don't want to go to college for a while," she　40　 . "My uncle　41 a restaurant in the Bahamas and he has　42　　me to spend a year there　43　　a waitress. That should give me plenty of　44　　for the beach. "

"It seems　45　　will really be going different ways now," thought Jennifer.

1.A.has been　　     B. were　C. had been　　　         D. would be

2.A.learned　　　    B. obtained　 C. remembered　　    D. shared

3.A.exam　　　　    B. sports　　   C. graduatioD. working

4.A.If　　　　　    B. Because　　   C. Although　　　 D. When

5.A.diligent　　        B. polite　　 C. active　　　　    D. favorite

6.A.specialized　       B. relievedC. envied　  D. interested

7.A.certain　　　       B. great　　　  C. unfortunate  　　    D. annoying

8.A.nice　　　　    B. high         C. bad　　　　　　  D. happy

9.A.Can　　　　　   B. Shall　　　  C. Must　　　　　   D. Need

10.A.income　　　   B. problem  　  C. family　　　　   D. difference

11.A .afford　　　      B. give　　　   C. support　　  　　    D. send

12.A .teachers　    B. parents　　  C. friends　　　 　 D. relatives

13.A.in fact　　　B. in a way  C. as a result　       D.on the contrary

14.A.what　　　         B. whom　　　   C. that　　　　　   D. these

15.A.admitted　B. complain　    C. proposed　　　   D. screamed

16.A.opens　　  B. runs　　　   C. works　　　　        D. makes

17.A.helped　　B. assured　　   C. invited　　　　      D. promised

18.A.on　　　　　   B. do　　　　   C. like　　　　         D. as

19.A.peace　　　　  B. work　　　   C. energy　　　         D. time

20.A.I　　　　　　  B. we　　　　   C. she　　　　　        D. they

完形填空

　　Computers have done a lot since they turned up. In the future they will play a more important part in many 1 , such as education, transport, personal lives, scientific research and 2 Nowadays computers are being 3 in agriculture and industry 4 can help the farmers to 5 the conditions of the plants.

　　More and more computers will come into our daily life with the 6 of science and technology. If you want to change money or pay your electricity bills, you won’t have to go to the 7 . A computer and a telephone will help you. It can also help you to do the housework and it can even 8 human voices and carry out the instructions. It is  9   10  the majority of the labour force will work at home. People will be able to use the videophone 11 conferences. This can help us to save a lot of energy and 12 .It is said that trains in Japan will have 13 , because they’ll be well 14 by computers, which can also tell the best 15 between trains.

　　Computer programmes for 16 whole texts are already will be developed. You can 17 the name of a certain subject and a 18 list of book titles, then they will 19 on your screen. You may choose 20 you want.

A young Scottish lady, like a lot of teens today, got tired of home. The daughter objected to her family’s 　1.　lifestyle and said, “I don’t want your God. I am leaving!” She left home. Before long, she was disappointed and unable to find a job, so she took to the streets to do everything she could to 　2.　. Many years passed by, her father died, her mother grew 　3.　, and the daughter became more and more stubborn in her way of life.

No  4. was made between mother and daughter during these years. The mother, having 　 heard of her daughter’s whereabouts, went to the poor part of the city in 　5.　of her daughter. She stopped at 　6.　of the rescue missions(收容所) with a simple speech. “Would you allow me to 　7.　this picture?” It was a picture of the smiling, gray-haired mother with a handwritten 　8.　at the bottom: “I love you still … come home!”

One day the daughter wandered into a rescue mission for a hot meal. She sat 　9.　listening to the service, all the while letting her 　10.　wander over to the bulletin board. There she saw the picture and thought, could that be my mother?

She couldn’t 　11.　until the service was over. She stood and went to look. It was her mother, and there were those words, “I love you still … come home!”　12.　she stood in front of the picture, she wept. It was too 　13.　to be true.

It was night, but she was so 　14.　by the message that she started walking home.　15.　the time she arrived it was early in the morning. She was afraid and 　16.　her way timidly. As she knocked, the door 　17.　open on its own. She thought someone must broken into the house. Concerned for her mother’s 　18.　, the young girl ran to the bedroom and shook her mother awake and said, “It’s me! It’s me! I’m home!”

The mother couldn’t believe her eyes. They fell into each other’s 　19.　. The daughter said, “I was so worried and thought someone had broken in.” The mother replied gently, “No, dear. From the day you left, that door has never been 　20.　.”