Mrs Leonard was round and pretty, with shining brown hair and warm, dark,   7   eyes. Everyone adored (敬重) her. But   8   came to love her more than I did. And for a   9   reason.

   The time came for the   10   tests given at our school. I could only just hear out of one ear, and was not   11  to reveal something else that would single   12   out as different. So I cheated.

   The “whisper test”   13   each child to go to the classroom door, turn sideways, close one ear with a finger,   14   the teacher whispered something from her desk,   15   the child repeated. Then the same for the other ear. Nobody checked how tightly the   16   ear was covered, so I only pretended to block mine.

   As  17   I was the last. But all through the testing I   18   what Mrs Leonard might say to me. I knew from previous years that the teacher   19   things like “The sky is blue.” Or “Do you have new shoes?”

   My   20   came. I turned my bad ear toward her,   21   the other just enough to be able to hear. I waited and then came the words that God had surely put into her mouth,   22   words that changed my life   23   .

   Mrs Leonard, the teacher I   24   , said softly, “I   25   you were my little girl.”

1　　 A. liked　　　　 B.　　  loved  　　　　  C.   hated　　　　 D expected

2.    A. lip 　　　　  B. ear　　　　　　    C.    finger　　     D. eyes

3.    A. broken       B.cut　　 　　　　　　C.   formed　　    D.killed

4.    A. very　　     B.much　　　　　　   C.   more　　　　  D.even

5.    A. strange　　   B.happy　　   　　   C.    sad　　　　    D.different

6.    A. inside    　　 B.with&nbtsp
;  　　　　　　 C.  as well as　　  D.outside

7.    A. surprised　　   B.smiling  　　　　   C.frightening　　 D.blind

8.    A. everyone　　   B.no one　　　　　　  C. anyone 　　   D.none  

9.    A. special　　　　 B.strange　　　　　　 C. usual　　　　  D.simple

10.   A. arithmetic算术  B.history　　　　　　 C.  hearing   　　 D.　　   blood

11.   A. excitedly　　   B.when   　　　　　　C. about  　　　　D.how

12.   A. me    　　　　B.Mrs Leonard　　　　 C.　　   us　　    　　 D.the pupils

13.   A. encouraged　　 B.persuaded　　  　　  C.required       D.agreed

14.   A. if　　　　　　 B.so　　　　　　　　  C.as if　　　　   D.While

15.   A. that　　　　   B.what   　　　　　　 C.　　   after　　　　   D.which

16.   A. untested　　   B.left　　   　　　　 C.bad　　       D.tested

17.   A. usually 　　   B.follows　　 　　　　 C.usual   　　   D.well

18.   A. examined　　  B.wondered　　    　　C.understood　　  D.noticed

19.   A. questioned　　 B.announced    　　  C.shouted    D.whispered

20.   A. teacher　　    B.time　　　　　　　　 C.opportunity　　 D.chance

21.   A. picking up　　 B.plugging up　　       C.closing　　　　 D.opening

22.   A. seven　　　　 B.some　　　　　　     C.several　　    D.lovely

23.   A. sometimes　　 B.    usually    　　　　 C.forever　　    D.all

24.   A. knew   　　  B.adored    　　　　   C.　　   realized   　　 D.spoke

25.   A. expect   　　 B.wish　　 　　　　　　C.wanted    　　 D.knew

D

　　In the atmosphere,carbon dioxide actd rather like a one-way mirror or the glass in the roof of a greenhouse which allows the sun's rays to enter but prevents the heat from excaping.

　　According to a weather expert's prediction,the atmosphere will be 3 warmer in the year 2050 than it is today, if man continues to burn luels at the present rate. If this warming up took place,the ice caps in the poles would begin to melt,thus raising sea level several meters and severely flooding coastal cities.Also，the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere(半球),psooicbly resulting in an alteration of earth's chief food growing zones.

　　In the past,concern about a man - made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet.But the weather experts are now paying more attention to West Antarctic,which may be affected by a warming on the scale that will possibly take place in the next fifty years from on burning of fuels.

　　Satellite pictures showthat large areas of Antarctic ice are already disappearing.The evidence available suggests that a warming has taken place.This fits the theory that carbon dioxide warms the earth.

　　However,most of the fuel is burnt in the northern hemisphere,where temperatures seem to be falling.Scientists conclude,therefore,that up to now natural influences on the weather have exceeded those caused by man.The question is:Which natural cause has most effect on the weather?

　　One possibility is the variable behavior of the sun.Astronomers at one research station have studied the hot spots and cold spots(that is,the relatively less hot spots) on the sun. As the sun rotates(旋转),every 27.5 days,it presents hotter or colder faces to the earth,and different aspects to different parts of the earth.This seems to have a considerable effect on the distribution of the earth's atmospheric pressure,and consequently on wind circulation.The sun is also variable over a long term:its heat output goes up and down in cycles,the latest trend being downward.

　　Scientists are now finding mutual relations between models of solar weather interactions and the actual climate over many thousands of years ,including the last Ice Age.The problem is that the models are predicting that the world should be entering a new Ice Age and it is not.

　　One way of solving this theoretical difficulty is to assume a delay of thousands of years while the solar effects overcome the inertia(不活动，惰性) of the earth's climate.If this is right,the warming effect of carbon dioxide might thus be serving as a useful counter balance to the sun's diminishing heat.

　　68.It can be concluded that a concentration of carbon dioxide in the atmosphere would ___.

　　　A.mean a warming - up im the Arctic

　　　B.raise the temperature of the earth's surface

　　　C.prevent the sun's rays from reaching the earth's surface

　　　D.account for great changes in the climate in the northern hemiphere

　　69.Although the fuel consumption is greater in the northern hemisphere,temperatures there seem to be falling.This is _______.

　　　A.mainly because the levels of carbon dioxide are rising

　　　B.partly due to variations in the output of solar energy

　　　C.possibly because the ice caps in the poles are melting

　　　D.exclusively due to the effect of the inertia of the earth's climate

　　70.On the basis of their models,scientists are of the opinion that ________.

　　　A.the climate of the world should be becoming cooler

　　　B.the new Ice Age will be delayed by the greenhouse effect

　　　C.the man - made warming effect helps to increase the solar effects

　　　D.it will take thousands of years for the inertia of the earth's climate to take effect

D
　　In the atmosphere,carbon dioxide actd rather like a one-way mirror or the glass in the roof of a greenhouse which allows the sun's rays to enter but prevents the heat from excaping.
　　According to a weather expert's prediction,the atmosphere will be 3 warmer in the year 2050 than it is today, if man continues to burn luels at the present rate. If this warming up took place,the ice caps in the poles would begin to melt,thus raising sea level several meters and severely flooding coastal cities.Also，the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere(半球),psooicbly resulting in an alteration of earth's chief food growing zones.
　　In the past,concern about a man - made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet.But the weather experts are now paying more attention to West Antarctic,which may be affected by a warming on the scale that will possibly take place in the next fifty years from on burning of fuels.
　　Satellite pictures showthat large areas of Antarctic ice are already disappearing.The evidence available suggests that a warming has taken place.This fits the theory that carbon dioxide warms the earth.
　　However,most of the fuel is burnt in the northern hemisphere,where temperatures seem to be falling.Scientists conclude,therefore,that up to now natural influences on the weather have exceeded those caused by man.The question is:Which natural cause has most effect on the weather?
　　One possibility is the variable behavior of the sun.Astronomers at one research station have studied the hot spots and cold spots(that is,the relatively less hot spots) on the sun. As the sun rotates(旋转),every 27.5 days,it presents hotter or colder faces to the earth,and different aspects to different parts of the earth.This seems to have a considerable effect on the distribution of the earth's atmospheric pressure,and consequently on wind circulation.The sun is also variable over a long term:its heat output goes up and down in cycles,the latest trend being downward.
　　Scientists are now finding mutual relations between models of solar weather interactions and the actual climate over many thousands of years ,including the last Ice Age.The problem is that the models are predicting that the world should be entering a new Ice Age and it is not.
　　One way of solving this theoretical difficulty is to assume a delay of thousands of years while the solar effects overcome the inertia(不活动，惰性) of the earth's climate.If this is right,the warming effect of carbon dioxide might thus be serving as a useful counter balance to the sun's diminishing heat.
　　68.It can be concluded that a concentration of carbon dioxide in the atmosphere would ___.
　　　A.mean a warming - up im the Arctic
　　　B.raise the temperature of the earth's surface
　　　C.prevent the sun's rays from reaching the earth's surface
　　　D.account for great changes in the climate in the northern hemiphere
　　69.Although the fuel consumption is greater in the northern hemisphere,temperatures there seem to be falling.This is _______.
　　　A.mainly because the levels of carbon dioxide are rising
　　　B.partly due to variations in the output of solar energy
　　　C.possibly because the ice caps in the poles are melting
　　　D.exclusively due to the effect of the inertia of the earth's climate
　　70.On the basis of their models,scientists are of the opinion that ________.
　　　A.the climate of the world should be becoming cooler
　　　B.the new Ice Age will be delayed by the greenhouse effect
　　　C.the man - made warming effect helps to increase the solar effects
　　　D.it will take thousands of years for the inertia of the earth's climate to take effect

　　　 The _ 31_ teacher, Mr. Litmus, had asked his students to study some special animal. They would write a short report, and tell the rest of the class their conclusions(结论). Some talked about dogs, others about horses, and some chose fish. But the most interesting _32_ of all was made by little Sophie.

　　　 “I found that _33_ are terribly ill- tempered（脾气坏的）,” she said, very sure of herself.

　　　 Everyone smiled, waiting for her to _34_. Then Sophie explained, “I spent hours in my house, watching flies. When they flied _35_, everything was OK, but when they found a _36_ they would really be noisy. I had always thought they made that _37_ with their wings, but they don’t. With my daddy’s telescope I watched the flies really closely, and saw that what they were really _38_ was shouting and protesting. They were so hysterical (歇斯底里的) that they couldn’t fly out of the window, and they would just _39_ their heads against the glass again and again. If only they had _40_ the butterfly that passed by, they would have seen that the top of the window was _41_. The butterfly tried to tell them, but it had no _42_ at all. The flies just kept on shouting and complaining.”

　　　 Mr. Litmus was _43_, and explained to the class that that form of fly’s behavior had nothing to do with _44_. Instead, it was an example of animals having different _45_ of intelligence .

　　　 And this was what _46_ a big disorder in the science class. Many parents had to come and complain because their children had _47_ their parents among the least intelligent of creatures! This, said the children, was because the parents did nothing but complain, and they _48_ listened to anyone.

　　　 Mr. Litmus had to do a lot of explaining, and quite a few parents _49_. It helped some of them realized that, although they weren’t _50_, they often behaved not terribly intelligently.

31.　 A. geography　　　　　　 B.　 head　　　　　　　 　 C.　 physics　　　　 　 D.　 science

32.　 A.　 discovery B.　 invention C.　 activity D.　 direction

33.　 A.　 insects B.　 flies C.　 butterflies D.　 bats

34.　 A.　 cheer B.　 begin C.　 discuss D.　 continue

35.　 A.　 quickly B.　 repeatedly C.　 normally D.　 directly

36.　 A.　 door　　　　　　　　　　 B.　 window　　　　　　　　 C.　 light　　　　　　　　　　 D.　 wall

37.　 A.　 force　　　　　　　　　　 B.　 wind　　　　　　　　　　 C.　 result　　　　　　　　　 D.　 noise

38.　 A.　 finding B.　 hating C.　 doing D.　 imagining

39.　 A.　 shook B.　 leaned C.　 beat D.　 turned

40.　 A.　 watched　　　　　　　 B.　 obeyed　　　　　　　　 C.　 caught　　　　　　　　　 D. heard

41.　 A.　 shut B.　 windy C.　 open D.　 clean

42.　 A.　 effect B.　 wonder　　　　　　　　 C.　 doubt D.　 reason

43.　 A.　 worried B.　 amused　　　　　　　　 C.　 encouraged D.　 learned

44.　 A.　 pleasure B.　 excitement　　　　　　 C.　 joy D.　 anger

45.　 A.　 levels　　　　　　　　　 B.　 areas　　　　　　　　　　 C.　 senses　　　　　　　　　 D.　 fields

46.　 A.　 removed B.　 caused　　　　　　　　 C.　 reduced D.　 solved

47.　 A.　 respected B.　 listed C.　 separate D.　 admitted

48.　 A.　 never B.　 always C.　 almost D.　 already

49.　 A.　 turned up B.　 gone back C.　 calmed down　　　　 D.　 held on

50.　 A.　 poor B.　 busy C.　 serious　　　　　　　　 D.　 stupid