What is the sky？ Where is it？ How bright is it？ What lies above it？ These questions are difficult to answer, aren’t they？

　　Is the sky blue？ The sky has no color. We know that there is air around the world. When planes fly, they need air to lift their wings. Planes can’t fly very high because the air gets thinner when they go up higher. If we go up about 1,200 kilometers from the earth, we’ll find no air there.

　　When we talk about the sky, we usually mean the atmosphere around the earth. It is like a very thick “cover” over the earth and keeps it warm. Without the “cover”, the earth would be a very cold place and nothing could live on it.

　　Looking up above us, you will see the blue sky with white clouds. It is usually light blue, but the sky would be dark blue if you go to the top of the highest mountains. And you will see fewer clouds between you and the sun.

　　And if you sit in a spaceship high above the earth, there is no air at all. The sky would be so dark that its color would be black.

　　Sometimes the sky doesn’t look blue. When the sun rises and falls, you will see red, orange, and other colors in the sky. These are the most beautiful moments of the day.

　　Now you may understand that we see colors because the air scatters (散射) the sunlight. Light travels through the air. Without air, there would be no light and no colors.

1.Planes can’t fly very high because ____________.

A．there is air around the world

B．the air gets thinner when they go up higher

C．it’s warmer in the sky

D．the air gets thicker when they go up higher

2.We can see colors of the sky because ____________.

A．the sun rises and falls every day

B．the sky has lots of colors

C．the air scatters the sunlight

D．the sunlight has many colors

3.Which of the following is TRUE？

A．There is little air without light and colors in the sky.

B．The sky will look red, orange and other colors at noon.

C．The sky has only one color when the sun rises and falls.

D．The sky is dark blue if you go to the top of the highest mountains.

I　didn’t　cry　when　I　learned　I　was　the　parent　of　a　disabled　child.　I　just　sat　still　and　didn’t　say　anything.
When　Jenny　was　old　enough,　I　sent　her　to　a　kindergarten（幼儿园）.　On　the　first　morning,　Jenny　spent　hours　playing　by　herself.　It　seemed　that　she　felt　very(41).
However,　to　my　joy,　Jenny’s　classmates　always　(42)　her,　“You　got　al　your　speling　words　right　today!”In　fact,　her　speling　list　was　the　(43).　Later,　she　faced　a　very　painful　(44)　—— at　the　end　of　the　term,　there　was　a　game　which　had　(45)　to　do　with　physical　education.　But　Jenny　was　(46)　in　it.
My　husband　and　I　were　anxious　about　the　day.　I　wanted　to　let　my　child　stay　home!　But　my　heart　wouldn’t　let　me　off　that　easily.　So　I　(47)　a　pale,　unwiling　Jenny　onto　the　school　bus.
At　the　kindergarten,　I　was　quite　worried　because　of　her　(48)　action,　Jenny　would　probably　hold　up　her　team.　The　game　went　wel　until　it　was　time　for　the　sack（麻袋）race.　Surely　Jenny　would　find　it　(49).　Now　each　child　had　to　climb　into　a　sack,　jump　to　the　finishing　line,　return　and　climb　out　of　the　sack.　I　noticed　Jenny　standing　near　the　end　of　her　line　of　players.
But　as　it　was　her　turn　to　join,　a　change　took　place　in　her　(50).　The　talest　boy　behind　Jenny　placed　his　hands　on　her　waist（腰）.　Two　other　boys　(51)　in　front　of　her.　The　moment　the　player　before　Jenny　stepped　out　from　the　sack,　the　two　boys　(52)　the　sack　suddenly　and　kept　it　open　while　the　tal　boy　lifted　Jenny　and　(53)　her　into　it.　A　girl　nearby　took　her　hand　and　supported　her　(54)　Jenny　got　her　balance.　Then　she　jumped　forward,　smiling　and　proud.　In　the　cheers　of　the　teachers,　schoolmates　and　parents,　I　silently　 thanked　 the　 warm,　understanding　people　in　life　who　made　it　 (55)　for　my　disabled　daughter　to　be　like　her　felow　human　beings.　Then　　I　finaly　cried.

 I　didn’t　cry　when　I　learned　I　was　the　parent　of　a　disabled　child.　I　just　sat　still　and　didn’t　say　anything.

    When　Jenny　was　old　enough,　I　sent　her　to　a　kindergarten（幼儿园）.　On　the　first　morning,　Jenny　spent　hours　playing　by　herself.　It　seemed　that　she　felt　very(41).

    However,　to　my　joy,　Jenny’s　classmates　always　(42)　her,　“You　got　al　your　speling　words　right　today!”In　fact,　her　speling　list　was　the　(43).　Later,　she　faced　a　very　painful　(44)　—— at　the　end　of　the　term,　there　was　a　game　which　had　(45)　to　do　with　physical　education.　But　Jenny　was　(46)　in　it.

    My　husband　and　I　were　anxious　about　the　day.　I　wanted　to　let　my　child　stay　home!　But　my　heart　wouldn’t　let　me　off　that　easily.　So　I　(47)　a　pale,　unwiling　Jenny　onto　the　school　bus.

    At　the　kindergarten,　I　was　quite　worried　because　of　her　(48)　action,　Jenny　would　probably　hold　up　her　team.　The　game　went　wel　until　it　was　time　for　the　sack（麻袋）race.　Surely　Jenny　would　find　it　(49).　Now　each　child　had　to　climb　into　a　sack,　jump　to　the　finishing　line,　return　and　climb　out　of　the　sack.　I　noticed　Jenny　standing　near　the　end　of　her　line　of　players.

    But　as　it　was　her　turn　to　join,　a　change　took　place　in　her　(50).　The　talest　boy　behind　Jenny　placed　his　hands　on　her　waist（腰）.　Two　other　boys　(51)　in　front　of　her.　The　moment　the　player　before　Jenny　stepped　out　from　the　sack,　the　two　boys　(52)　the　sack　suddenly　and　kept　it　open　while　the　tal　boy　lifted　Jenny　and　(53)　her　into　it.　A　girl　nearby　took　her　hand　and　supported　her　(54)　Jenny　got　her　balance.　Then　she　jumped　forward,　smiling　and　proud.　In　the　cheers　of　the　teachers,　schoolmates　and　parents,　I　silently　 thanked　 the　 warm,　understanding　people　in　life　who　made　it　 (55)　for　my　disabled　daughter　to　be　like　her　felow　human　beings.　Then　　I　finaly　cried.

  1.　A.　excited　　　　B.　lonely　C.　happy　　　　D.weak

  2.　A.　greeted　　　　B.　expected　C.　encouraged　　　　D.　folowed

    3.　A.　easiest　　　　B.　longest　C.　smalest　　　　D.　tidiest

4.A.　choice　　　　B.　problem　C.　result　　　　D.　exam

   5.　A.　nothing　　　　B.　anything　C.　everything　　　　D.　something

    6.　A.　forward　　　　B.　fast　C.　behind　　　　D.　up

    7.　A.　threw　　　　B.　pushed　C.　knocked　　　　D.　fixed

   8.　A.　slow　　　　B.　quiet　　　　C.　quick　　　　D.　secret

    9.　A.　stupid　　　　B.　simple　relaxing　　　　D.　difficult

    10.　A.　school　　　　B.　family　C.　team　　　　D.　heart

    11.　A.　ran　　　　B.　lay　　　　C.　walked　　　　D.　stood

    12.　A.　picked　up　　　　B.　gave　up　　　　C.　cut　up　　　    D.　made　up

  13.　A.　drove　　　　B.　hid　　　　C.　put　　　　　D.　hit

    14.　A.　when　　　　B.　until　　　　C.　after　　　　D.　unless

    15.　A.　popular　　　　B.　special　C.　necessary　　　　D.　possible