No one really knows exactly dfwhen the first people arrived in      we now know as California

         A．what        B．when                C．where         D．which  

When the children are busy playing their games．They had better be _____

       A．let out      B．left out    C．left alone  D．left away

Isn’t it amazing how the human body heals        after an injury?

A.himself                     B.itself                  C. it               D．him

After my husband died suddenly from a heart attack，my world crashed around me. My six children were all under 10，and I was burdened with the responsibilities of earning a living，and caring for the children. I was fortunate to find a wonderful housekeeper to care for the children during the week，but from Friday nights to Monday mornings，the children and I were alone.

    One Friday evening I came home from work to find a big pretty German Shepherd（牧羊犬）on our doorstep. This dog seemed to intend to enter the house. The children liked “German” immediately and begged me to let him in. I agreed to let him sleep in the basement. That night I slept peacefully for the first time in many weeks.

    The following morning we made phone calls and checked lost-and-found ads for German’s owner，but with no results.

    On Sunday I had planned to take the children on a picnic. Since I thought it best to leave German behind in case his owner came by，we drove off without him. When we stopped to get gas，we were amazed to see German racing to the gas station after us. No way was he going to be left behind.

    Monday morning I let him out for a run. He didn’t come back and we were all disappointed. We were convinced that we would never see him again. We were wrong. The next Friday evening，German was back on our doorstep. Again he stayed until Monday morning，when our housekeeper arrived.

    This pattern repeated itself every weekend for almost 10 months. We grew more and more fond of German. We took comfort in his strong，warm presence，and we felt safe with him near us. As German became part of the family，he considered it his duty to check every bedroom to be sure each child was cozy in bed.

    Each week，between German’s visits，I grew a little stronger，a little braver and more able to handle; every weekend we were no longer alone and enjoyed his company. Then one Monday morning we patted him on the head and let him out for what turned out to be the last time. We never saw German again.

56．The dog first came to the family when _______________.

    A．it was needed most

    B．the writer became strong enough

    C．the writer was away on a business trip

    D．the writer was busy on the weekday

57．The family planned to go on a picnic without the German Shepherd because ____.

    A．it was too wild to control

    B．it was too young to walk so far

    C．the owner might come by to pick it up

    D．it might spoil the trip

58．The writer was ____________ the German Shepherd.

    A．afraid of　　　　　　　　　B．grateful to

    C．cruel to 　　　　　　　　　D．annoyed with

59．Which of the following can’t be used to describe the dog？

    A．Loyal 　　　　　　　　　B．Helpful

    C．Lovely 　　　　　　　　 D．Wild

       The food we eat seems to have a great effect on our health．Although science has made big steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat．Some research has shown that perhaps eighty percent of human illness is related to food and forty percent of cancer is related to food as well．That food is related to illness is not a new discovery．In 1945,some researchers realized that things commonly used to keep colors in meats and other food additives caused cancer．Yet, these additives remain in our food, and it is difficult to know which things on the wrappings of foods are helpful or harmful．The additives which we eat are not all so direct．Farmers often give penicillin to their animals, and because of this, penicillin has been found in the milk of cows．Sometimes similar things are supplied to animals not for their health, but just to make a profit．

       The farmers are simply trying to fatten the animals in order to get a higher price on the market．Although some countries have tried to control such things, the practice continues．

According to this passage, we can know       ．

       A．perhaps most of human illness is caused by what we eat

       B．perhaps most kinds of cancer are related to what people eat

       C．cancer was discovered in 1945

       D．science has made food unfit to eat

Things that are used to keep colors in meats are       ．

       A．harmful    B．useless      C．helpless    D．dangerous

All the additives       ．

       A．are bright and colorless   B．are not bright and colorful

       C．have indirect effects on our health  D．have direct effects on our health

People use additives       ．

       A．to make food more unfit to eat       B．to improve the color and taste of the food

       C．to change the color of the food       D．to take off the diseases of the food

Which of the following is NOT true?

       A．Some wrappings of food are harmful．

       B．Farmers try to make more money on the market by fattening their animals．

       C．“The practice continues” means “things are still going on like that”．

       D．We needn't take care of what we eat．

I was just _______to go out when the telephone rang ．

       A．/       B．about C．likely       D．off

Not what he said but _______ he said it surprised me.

   A. the way     B. in the way that    C. in the way      D. the way which

What secret force drives us into the arms of one person, while pushing us away from another who might appear equally desirable to any fair observer? Of the many factors influencing our idea of the perfect mate, one of the most telling is our “lovemap” ---- a group of messages formed in our brains that describes our likes and dislikes．It shows our preferences in hair and eye color, in voice, smell, body build．It also records the kind of personality that attracts us, whether it’s the warm and friendly type or the strong silent type．In short, we fall for and go after those people who most clearly fit our lovemap．And this lovemap is determined in childhood．By age eight, the pattern for our ideal mate has already begun to float around in our brains．

The mother has special influence on her sons: she not only gives them clues to what they will find attractive in a mate, but also influences how they feel about women in general．So if she is warm and nice, her sons are going to think that’s the way women are．They will likely grow up warm and responsive lovers and also be helpful around the house．

Just as mothers influence their son’s general feelings toward women, fathers influence their daughter’s general feelings about men．If a father lavishes praise on his daughter and shows that she is a worthwhile person, she’ll feel very good about herself in relation to men．But if the father is cold, critical or absent, the daughter will tend to feel she’s not very lovable or attractive．

While the mother determines in large part what qualities attract us in a mate, it’s the father ----- the first male in our lives ----- who influences how we relate to the opposite sex．Fathers have a great effect on their children’s personalities and chances or marriage happiness．

What is the proper title for this passage?

       A．Why we love who we love         B．What is a lovemap

       C．Different influence from parents         D．Ideal mate in the mind

A perfect mate is a person who ____．

       A．is fair to everyone                B．is the most desirable

       C．fits one’s lovemap                D．is perfect in everything

If the husband hardly does any housework, ____．

       A．his mother must be warm              B．his father must be critical

       C．his mother must be cold                D．his wife can’t be attractive

The passage leads to a belief that ____．

       A．parents’ personalities decides the children’s lovemap

       B．mothers have no influence on daughters’ marriage life

       C．fathers care more about children’s marriage happiness

       D．mothers influence children’s choices of perfect mates

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

第二节 书面表达（满分25分）

　　假如你是李华，是某一中学学生，请你根据以下倡议书的内容写一封英文倡议书，变谈作为中学生如何履行网络文明公约。