24、Colorful fruit and vegetables are good for out health．Their natural colors help protect our bodies from disease．Think about the colors of fruit and vegetables：the red of tomatoes，the orange of carrots，the green of kiwi fruit and the purple of grapes．

You can enjoy eating fruit and vegetables of all colors：green，yellow，orange，blue，purple and white．Each color is important to our health．These colors work together to protect our bodies．Scientists have studied them and discovered the good of colorful fruit and vegetables．The list below shows the good of some colors in fruit and vegetables：

◆Red gives us a healthy heart．It can reduce the risk（风险）of heart disease．Red helps prevent cancer and improve our memory．

◆Yellow gives us a healthy immune system（免疫系统）．It is also good for our eyes．

◆White can keep cholesterol（胆固醇）at a low level．

◆Green helps prevent cancer．It is good for our eyes，too．It also gives us strong bones and teeth．

◆Blue helps us keep a good memory as we grow old．It also helps fight cancer and heart disease．

So when you are buying or eating fruit and vegetables，remember try different colors of fruit and vegetables．

1．How many kinds of fruit and vegetables are mentioned（被提到）in this passage?

2．How does yellow in fruit and vegetables protect our bodies?

3．What colors of fruit and vegetables are good for our eyes?

4．What color can help us keep cholesterol at a low level?

5．How many colors of fruit and vegetables are there in the passage?

23、A research team at the United States Pentagon first developed the concept of linking computers together in the 1960s．They wanted to have a system（A）________ would enable universities，research departments and the military to share resources with（B）________ other．（C）Computers at this time were，as large as refrigerators and could not transported easily．Another problem was that they were often complicated and not compatible with each other．The research team had to overcome these difficulties to（D）create a network that could share computing power．Gradually，more and more scholars came online．（E）Years later，businessmen began using the Internet，too．The number of people using it is increasing all the time and it is becoming more widely available（F）across the world．In fact，somewhere in every continent in the world，it is possible to use the Interact．There is a wide range of services available on the Internet．This means that（G）有很多不同的交流方式．The most popular way is undoubtedly electronic mail-more commonly called ‘e-mail’．The second most popular is browsing on the World Wide Wed（www）．Briefly，the www is a very big series of connected pages containing various forms of multimedia．The third most popular way is real time text based communication between users such as IRC--Internet Relay Chat．

1．在划线处A和B的空白处填入一个适当的词语：_________；_________

2．将划线处C改写为：Compters at this time were _________ _________ large as refigeralots

3．写出划线处D和F的同义词或近义词：_________；_________

4．将划线处E改写为：_________ _________ years

5．将划线处G译成英语：_____________________________________________

22、Qian Xuesen is a pioneer in the development of China's aerospace science and technology．He is called ‘Father of China's Aerospace' and ‘King of Rockets’．

Qian was born in Shanghai on 11 December，1911．In 1934．he（A）________ from the Mechanical Engineering Department of Shanghai Jiaotong University．He then went to（B）________ in the USA，with the help of public funds In 1939，（C）he was awarded a doctorate in Aerospace and Mathematics from an American university After this．（D）he spent many years teaching and doing research work at universities in the USA．

Qian（E）returned to China in 1955．After Qian（F）left the USA，an American writer wrote an article describing the importance of Qian's theories，and the rising strength of China's national defence．Four months after Oian's return to China，he submitted a report to the State Council about using China’s aerospace industry for national defence．Based on his proposal，the State Council and the Central Military Commission set up the Committee of The Aerospace Industry．This was an important body for missile and aerospace science study，and Qian was elected a member of the committee．

As well as science，he is also interested in medicine，philosophy and music，and is good at these things，too．（G）在他90岁生日时，many leading scientists had a huge conference to honor his contribution to aerospace development．

1．在划线处A和B的空白处填入一个适当的词语：__________；__________

2．划线处C在文中指的是：______________________________

3．将划线处D改写为：it __________ __________ many years to teach and do research work

4．写出划线处E和F的同义词或近义词：__________；__________

5．将划线处G译成英语：__________________________________________________

20、It is warm．The flowers and trees are growing．Birds are making their nests．It is（A） _______．

It is very （B）hot and（C）sunny．The children go to the beach Kitty is lying under an umbrella Ben is swimming（D）它是夏天．

It is cool and dry．The children go to the country park．（E）Ben is riving a kite．It is autumn．

It is cold and windy．The children wear warm clothes，scarves and gloves．（F）They are riding their bicycles．It is winter．   

1．在划线处A的空白处填入一个适当的词语：______________。

2．写出划线处B和C的反义词：_______；_______。

3．将划线处D译成英语：__________________________________________。

4．将划线处E译成汉语：__________________________________________。

5．划线处F在文中指的是：__________________________________________。

18、A）根据图画选词语   

（    ）1．A．a family photo                             B．a picture book   

（    ）2 A．a boy student                                   B．a shop assistant

（    ）3．A clean the fiat                                  B．play with water   

（    ）4．A swimming in summer                       B．flying kites

（    ）5 A．traffic lights                                     B．a rubbish bin

B）用给图画选出的词语填空

6．My brother is_______________．

7．Look at the _______________when you cross the road

8．There is _______________on the wall

9．Children like_______________．

10．My parents _______________every day．

17、选择并抄写单词。

1．This is Mark．_______（she’s；He’s）my friend．

2．These_______ （aren’t；isn’t）my gloves．

3．How_______ （much；many）cousins have you got?

4．I can swim，_______ （but；and）I can’t dive．

5．Eddie comes to school_______ （in；by）school bus．

6．In spring，birds are_______ （make；making）their nests．

7．I like wood better than gas．It’ _______ （cheap；cheaper）．

8．What job_______ （do；does）your mother do?

9．Ben and Kitty live on the_______ （nine；ninth）floor

10．It_______ （takes；makes）Danny about fifteen minutes to get to school