How did ancient people tell time?

◆Natural ways of keeping time

In ancient time，people had to use the sun and the moon to tell time．They got up when the sun came up and worked in the fields until the sun went down．

◆Man-made things

The sand clock is made of two glass balls joined by a narrow neck．The top ball was filled with sand．The sand slowly moved through the neck into the bottom（底部）ball．People knew the time by watching how much sand fell to the bottom hall．People also made the water clock．They made a small hole near the bottom of a pot．when the water in the pot dripped（滴）out，marking（刻度）inside the pot showed how much time passed．

◆Body clocks in living things

Animals' body clock

Animals don't need clocks to know time．They have their body clocks．Birds know when to fly to warmer places before winter．Some animals know when to keep more food for the winter．Some fish know when it's time to move up the river and lay eggs．

Plants' own clock

Plants have their own clocks to keep time．Plants know when to open flowers or when to drop their leaves．

Body clock in human beings

People also have their own body clocks．When we get used to our lives，our body clocks can be very exact．It can tell us when it's time to wake up．It can also tell us when to eat or to go to sleep．

1．How could an ancient farmer know when to go back home from the field in the daytime?

A．By looking at the moon．                         B．By the sand clock or the water clock．

C．By looking at the sun．                               D．By feeling whether tired or not．

2．According to the passage，how can animals know time?

A．They use body clocks．                           B．They ask other animals．

C．They use the sun and the moon．                D．They make something to tell time．

3．How many kinds of living things with body clocks are mentioned here?

A．Two．                B．Three．               C．Four．                   D．Six．

4．In what way is the sand clock the same as the water clock in telling time?

A．Both of them have a neck．

B．Both of them have two glass balls．

C．Both of them can be used only once．

D．Both of them give the time by quantity（数量）．

5．The passage is mainly about _________．

A．man-made clocks                                    B．nature's clocks

C．time and clock                                           D．how people keep time

     You may not know how his magic tricks work. But that's why they are so much fun!

     David Copperfield is one of the world's most famous magicians  (魔术师) . He began studying magic when he was a child. At the age of 12, he was the youngest person in the Society of American Magicians. Now he is famous all over the world.

    In 1983, he made the Statue of Liberty in New York disappear for a few minutes. In 1986, Copperfield first came to China. He walked through the Great Wall in Beijing! During his second visit in 2002, lots of Chinese people were lucky enough to enjoy his shows. In 2004, he came to China again. He showed everyone, young and old, lots of new magic tricks.  Copperfield's shows began in Beijing in April. Then he gave shows in Changsha, Hangzhou, Nanjing, Shanghai and so on - seven other cities in China in April and May. There were 38 shows in all!

    Copperfield's shows are not just magic. He also dances and does many interesting things to make his fans happy. He even asks his fans to help him do tricks ! One of Copperfield's greatest tricks is flying. In his shows in China, he even made some fans fly around the theatre ! In another trick, an electric saw(电锯) cut Copperfield's body in half. Copperfield's magic is different each time. What do you think he will do next time? It will be fun to wait and see!

51. How many times has David Copperfield been to China?

    A. Once.          B. Twice.         C. Three times.        D. Four times.

52. _______is NOT in David Copperfield's shows according to the passage.

     A. Flying his fans around

     B. Cutting his own body in half with a saw

     C. Walking in the water

     D. Making the Statue of Liberty disappear for a while

53. What is the best tide of the passage?

     A. A Famous Magician                   B. A Visit to China

     C. Lucky Chinese People                 D. Thirty - eight Shows

-- ____ great fun it is to fly kites! ____ fantastic time the children are having!

-- Yes, I agree.

1. A.
   What, What a
2. B.
   What, What
3. C.
   How, How a
4. D.
   What a, What

___________ great fun it is to fly kites! ________ fantastic time the children are having!

A. What, What a         B. What, What     C. How, How a      D. What a, What

-- ____ great fun it is to fly kites! ____ fantastic time the children are having! --- Yes, I agree.

   A. What, What a        B. What, What      C. How, How a     D. What a, What