The computer plays an important part in our everyday life. It is one of the great _36__ in the world in the  twentieth century. It works for us not only at home, in the offices, in big shops, __37__ at schools. Today it is used __38__ many ways. It really brings the world large wealth (财富) and happiness.

The first computer in the world was __39 _ Enid. It was built in America in 1946. It was large and heavy. __40__ it was born, it has been developing very fast. Until now it has gone __41__ four periods（时期，阶段）and changed a lot. There’re many kinds of computers. Computers are getting smaller and smaller and computing faster and faster. It becomes more and more __42__.

The computer can do most of the things for  the people. It can help us to __43  _ about the real world more quickly, to learn __44__ we want to learn and to think for ourselves. __45__ a student in the twenty-first century, you must work hard at it.

(   )36 A. inventions     B. discoveries          C. inventors

(   )37 A. also             B. but also             C. too             

(   )38. A. in             B. to                        C. by              

(   )39. A. found          B. invented                C. called        

(   )40. A. For            B. Since                 C. When      

(   )41. A. by               B. across               C. through         

(   )42.A. serious                B. harmful.            C. helpful

(   )43.A. know                 B. tell                     C. talk

(   )44.A. what            B. that                  C. who

(   )45.A. For             B. As                   C.To

　The computer plays an important part in our everyday life. It is one of the great __1__ in the world in the __2__ century. It works for us not only at home, in the offices, in big shops, __3__ at schools. Today it is used __4__ many ways. It really __5__ the world large wealth (财富) and happiness.
　　The first computer in the world was __6__ Enid. It was built in America in 1946. It was __7__ and heavy. __8__ it was born, it has been developing very fast. Until now it has gone __9__ four periods（时期，阶段）and changed a lot. There’re many kinds of computers. Computers are getting smaller and smaller and computing faster and faster. It becomes more and more __10__.
　　The computer can do most of the things __11__ the people. It can help us to __12__ about the real world more quickly, to learn __13__ we want to learn and to think __14__ ourselves. __15__ a student in the twenty-first century, you must work hard at it.

　　1. A. inventions     B. discoveries C. robots               D. inventors
　　2. A. twenty-first   B. twenties   C. twelfth      D. twentieth
　　3. A. also             B. but also     C. too            D. either
　　4. A. in              B. to             C. by             D. over
　　5. A. takes            B. helps         C. gets           D. brings
　　6. A. found           B. invented     C. called       D. bought
　　7. A. easy             B. small         C. large         D. light
　　8. A. For              B. Until         C. When      D. Since
　　9. A. by                B. across      C. through     D. against
　　10.A. serious         B. harmful.    C. dangerous D. helpful
　　11.A. for             B. to             C. at              D. with
　　12.A. set              B. tell         C. know               D. talk
　　13.A. what            B. that           C. which        D. who
　　14.A. of               B. about        C. out            D. for
　　15.A. For             B. Be            C. As             D. To

Some animals in the world are very small．and the others are very big．Giraffes are one of the tallest and most interesting animals．Male giraffes are usually about six meters tall．Half of the giraffe’s height conies from its neck．which is longer than its legs．

      A giraffe has big brown eyes which are protected by very thick lashes （睫毛）．Since it lives in parts of Africa which are usually dry with a great deal of dust，the lashes are an important source of protection．It can also cover its nostrils（鼻孔） in order to protect its nose．It has brown spots on tan skin and this coloring helps protect the giraffe．The giraffe also has tⅥo short horns on its head．

    Like the camel．the giraffe can go a long way without drinking water．One source of water is the leaves which the giraffe eats from trees．Since it is so tail．the giraffe can reach the tender（嫩的）leaves at the top of a tree．

    Giraffes usually live in small herds and often feed with other animals．A baby giraffe is two meters tall at birth．It can stand up by itself within a few minutes and run well in about two days．

    Giraffes have two ways of serf-protection．If something frightens an adult giraffe，it can run away at about fifty kilometers per hour or stay to fight with its strong legs．

1．What animal does this passage talk about?

___________________________________________________________________________

      2．How long is a male giraffe’s neck?

___________________________________________________________________________

      3．Why are giraffes’ lashes an important source of protection?

___________________________________________________________________________

      4．How soon can a baby giraffe run well after its birth?

___________________________________________________________________________

      5．What can it do when something frightens an adult giraffe?

__________________________________________________________________________

Computer games are very popular．It is natural for people to want to   1  ，so playing against a computer or against a friend on the computer can be   2   to stop．“Just one more game，” often turns into another game， then another．

Computer games do have their   3  ．They are excellent for training hand / eye coordination（协调）．Surgeons（外科医生） who played computer games as children are often more skilled．Computer games can also be great for teaching students．The students are open to learning while playing．They can study for longer than a   4   would be able to teach．Students can also learn at their own speed and not feel pressured to match classmates． And with computers you can   5   a task as many times as you like． The more you do this，the better you will get， until you can do it perfectly．

But like anything else in life， things should be balanced．Too much time on the com purer can   6   your eyes． Regular breaks are needed．If students cannot   7   playing computer games，they won’t do as well in other areas in their life--not just schoolwork，but in developing important social skills such as how to talk with people and how to work with others as part of a   8  ．And if they are   9   taking regular exercise，their health will become worse．

Computer games have their place，but people must also remember it is important to  10  a balanced lifestyle．

1．A．win                  B．lose                     C．fight              D．race

2．A．easy                  B．necessary                C．difficult            D．natural

3．A．rules                  B．advantages                C．disadvantages       D．mistakes

4．A．teacher               B．parent                   C．doctor                D．computer

5．A．make                  B．practice                 C．put off                 D．discover

6．A．break                  B．hurt                    C．relax             D．close

7．A．enjoy                  B．start                    C．stop                     D．keep

8．A．family                 B．game                   C．match                  D．team

9．A．often                  B．no longer                 C．always            D．still

10．A．refuse               B．give up                 C．stay away from           D．have

Computer games are very popular．It is natural to want to win，so playing against a computer or against a friend on the computer can be difficult to stop “Just one more game，”often ruins into another game then another．

    Computer games do have their advantages．They are excellent for training． hand-eye coordination（协调）．Surgeons（外科医生）today who played computer games as children are often more skilled than those who didn't．Computer games can also be great for teaching students．The students are open to learning while playing and can study for longer than a teacher would be able to teach．Students can also learn at their own speed and not feel pressured（有压力的）to match classmates．And practice makes perfect．

    But like anything else in life，things should be balanced．Too much time on the computer can hurl．your eyes．Regular breaks（间歇）are needed．If students cannot stop playing computer games，they won't do as well in other areas in their life-not just schoolwork，but in developing important social skills such as how to talk with people and how to work with others as part of a team．And if they aren't taking regular exercise their health will suffer（受苦）．

    Computer games have their place，but people must also remember to lead well-balanced lives．

1．Computer games are good because________．

A．they train us to be good with our hands

B．they can replace teachers completely

C．they are good for our eyes

D．computers are cheap

2．Surgeons who played computer games as children may___________．

A．make worse surgeons   

B．make better surgeons

C．be no better than surgeons who didn't

D．be happy to do an operate on

3．According to the text，which of the following is not a disadvantage（缺点）of computer games?

A．The effect（影响）on our health．   

B．The effect on social skills．

C．The effect Oil our eye-hand coordination．

D．The effect on our eyes．