Look into the mirror and what do you see? You see yourself. But when you move. you do everything backward(相反地)in the mirror! If you wave your left hand, your right hand waves in the mirror. If you wink your right eye, your left eye, your left eye winks(眨). Try to read a page in the mirror .The words will be backwards.

What is really happening? You do not see through the glass of a mirror as you do through a window. The glass of a mirror has a silver coating on the back. The light from the sun or a bulb bounces (弹回)off you ,goes into the mirror ,and bounces straight back out to you again.

Mirrors have been used for thousands of years. The earliest were round pieces of shiny metal. Glass mirrors came late. The ancients thought that a mirror was magic. They did not understand how it worked. They thought they saw their spirits in a mirror and breaking a mirror brought bad luck.

Today mirrors have many uses .For example, they can make rooms look bigger and prettier. They also show us if our hair is combed(梳理) well and our faces are clean. On cars, buses and trucks, mirrors help drivers see traffic behind them. Mirrors are also used in telescopes(望远镜)and searchlights(探照灯).

Fun houses use mirrors. They make people look funny. Some mirrors are curved to make people seem short and round or tall and tin They make people laugh at themselves.

 

1.If you wave your right hand, you can see your         In the mirror.

A. left hand down     B. left hand wave

C. right hand wave    D. right hand up

2.Mirrors        .

A. appeared a long time ago

B. were made of glass at first

C. made of metal are popular today

D. had many uses in ancient times

3.Mirrors were magic in the past because       .

A. people thought they could see their spirits in mirrors

B. they were used in magic shows

C. they could make people change their heights and weights

D. they could make people laugh

4.What does the word “curved” mean in Chinese?

A.雕刻       B.油漆      C.扭转       D.弯曲

 

Look into the mirror and what do you see? You see yourself. But when you move. you do everything backward(相反地)in the mirror! If you wave your left hand, your right hand waves in the mirror. If you wink your right eye, your left eye, your left eye winks(眨). Try to read a page in the mirror .The words will be backwards.
What is really happening? You do not see through the glass of a mirror as you do through a window. The glass of a mirror has a silver coating on the back. The light from the sun or a bulb bounces (弹回)off you ,goes into the mirror ,and bounces straight back out to you again.
Mirrors have been used for thousands of years. The earliest were round pieces of shiny metal. Glass mirrors came late. The ancients thought that a mirror was magic. They did not understand how it worked. They thought they saw their spirits in a mirror and breaking a mirror brought bad luck.
Today mirrors have many uses .For example, they can make rooms look bigger and prettier. They also show us if our hair is combed(梳理) well and our faces are clean. On cars, buses and trucks, mirrors help drivers see traffic behind them. Mirrors are also used in telescopes(望远镜)and searchlights(探照灯).
Fun houses use mirrors. They make people look funny. Some mirrors are curved to make people seem short and round or tall and tin They make people laugh at themselves.
【小题1】If you wave your right hand, you can see your         In the mirror.

A．left hand down	B．left hand wave
C．right hand wave	D．right hand up

【小题2】Mirrors       .

A．appeared a long time ago

B．were made of glass at first

C．made of metal are popular today

D．had many uses in ancient times

【小题3】Mirrors were magic in the past because      .

A．people thought they could see their spirits in mirrors

B．they were used in magic shows

C．they could make people change their heights and weights

D．they could make people laugh

【小题4】What does the word “curved” mean in Chinese?

A．雕刻

B．油漆

C．扭转

D．弯曲

Last summer holidays．my classmates and I helped with a charity show．Its aim was to raise money for those children who   1   go to school in poor areas．We did a lot for that．

I felt happy when I    2    to be the host．Though it was    3   ，1 was very nervous  ___4   the TV cameras．I knew that lots of people would come   5    the show, also there would be a large audience   6   the TV．

As some famous stars would come to the show．one of my   7   was to introduce each of them．I also had   8   things to do．So I often worked from morning tin night．It was hard work，  9   I was happy．

I practiced a lot before the show．I had to remember all the words and do everything right at tile same time．At first, I thought l would never be able to do it well．I kept   10   myself not to be nervous．Slowly everything became easier．

The big day came very fast．  11   people came to the show．They donated money and materials．And the local businesses also gave   12   a lot of support．  13   generous they are!

After the show，we sent the donations to those poor children．Soon they wrote back．They were   14   grateful to us．I was very proud that I could help them．I hope  15 people will help them．

1．A．mustn't                  B．couldn't               C．needn't                   D．shouldn't

2．A．choose                  B．chose                         C．am chosen             D．was chosen

3．A．exciting                 B．excited                 C．frightening             D．frightened

4．A．as                         B．since                   C．because                 D．because of

5．A．to look                  B．to watch              C．to notice                D．to find

6．A．in front                  B．in front of            C．in the front of         D．in the front

7．A．duty                      B．work                   C．duties                    D．works

8．A．some other    B．others                  C．another                  D．some others

9．A．or                         B．but                      C．and                        D．so

10．A．tell                      B．telling                  C．told                       D．to tell

11．A．Hundred              B．Hundreds             C．Hundred of             D．Hundreds of

12．A．we                      B．us                       C．our                        D．ourselves

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

14．A．real                     B．really                   C．true                       D．truly

15．A．1ittle and little       B．1ess and less        C．many and many      D．more and more

    X—rays were discovered in 1895 by a German Professor, Wilhelm Roentgen. People all over the world were amazed by his invention---- the X-ray machine. This invention was so important that Roentgen was awarded the first Nobel Prize for physics in 1901.

    The telephone was invented by Alexander Graham Bell, a doctor and a speech teacher for the deal. The first phone call was made by Bell in 1876. He had spilled(溅出) acid(酸) on his pants and wanted his assistant, Thomas Watson, to help him. The first words spoken on the telephone were “Mr Watson, come here! I need you!”

    Television was invented in 1926 by John Logie Baird, a Scottish inventor. Baird’s television certainly didn’t look like a television today! It was made of a box, knitting needles, a cake tin, a bicycle lamp, and a cardboard disc. Electronic televisions like the ones we have today were invented by Vladimir Zworykin in the 1920s in the United States.

    The first computer was built in 1946 by two American engineers, J.P.Eckert and John Mauchly. It was developed for the army, and it was so large that it took up an entire room! Later, in 1971, the “microchip” was invented, and small home computers were first produced for personal use. Today computers are involved(包含)in almost everything we do and are found almost everywhere we go.

根据短文内容判断句子正（T）误（F）。(每题1分，共5分)

(   )81. X—rays is an important invention.

(   )82. Wilhelm Roentgen was awarded the first Nobel Prize for Physics.

(   )83. The telephone was invented by a Thomas Waston.

(   )84. Electronic televisions like the ones we have today were invented in the United States in the 1920s.

(   )85. The first computer was invented by Americans in 1971.