Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all, you probably sing when you are happy. Some scientists believe that birds do sing some of the time just because they are happy. However, they sing most of the time for a very different reason. Their singing is actually a warning to other birds to stay out of their territory.

　Do you know what a “territory” is? A territory is an area that an animal, usually the male, claims (声称) as its own. Only he and his family are welcome there. No other families of the same species are welcome. Your house is your territory where only your family and friends are welcome. If a stranger should enter your territory and threaten you, you might shout. Probably this would be enough to frighten him away. If so, you have actually frightened the stranger away without having to fight him. A bird does the same thing. But he expects an outsider almost any time, especially at nesting (筑巢) season. So he is screaming all the time, whether he can see an outsider or not. This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.

1.Some scientists believe that most of the time bird’s singing is actually ________.

A.an expression of happiness      B. a way of warning

B.an expression of anger          D. a way of greeting

2.What is a bird’s “territory”?

A．A place where families of other species are not accepted.

B．A place where a bird may shout at the top of its voice.

C．An area for which birds fight against each other.

D．An area which a bird considers to be its own.

3.Why do birds keep on singing at nesting season?

A．Because they want to invite more friends.

B．Because their singing helps frighten outsiders away.

C．Because they want to find outsiders around.

D．Because their singing helps get rid of their fears.

4.How does the writer explain birds’ singing?

A．By comparing birds with human beings.       B．By reporting experiment results.

C．By describing birds’ daily life.             D．By telling a bird’s story.

5.What does the underline word “screaming” in paragraph 4 mean?

A．哭喊声           B．令人惊愕的        C．尖叫声           D．尖叫的

 

Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all, you probably sing when you are happy. Some scientists believe that birds do sing some of the time just because they are happy. However, they sing most of the time for a very different reason. Their singing is actually a warning to other birds to stay out of their territory.
　Do you know what a “territory” is? A territory is an area that an animal, usually the male, claims (声称) as its own. Only he and his family are welcome there. No other families of the same species are welcome. Your house is your territory where only your family and friends are welcome. If a stranger should enter your territory and threaten you, you might shout. Probably this would be enough to frighten him away. If so, you have actually frightened the stranger away without having to fight him. A bird does the same thing. But he expects an outsider almost any time, especially at nesting (筑巢) season. So he is screaming all the time, whether he can see an outsider or not. This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.
【小题1】Some scientists believe that most of the time bird’s singing is actually ________.
A.an expression of happiness      B. a way of warning
B.an expression of anger          D. a way of greeting
【小题2】What is a bird’s “territory”?

A．A place where families of other species are not accepted.

B．A place where a bird may shout at the top of its voice.

C．An area for which birds fight against each other.

D．An area which a bird considers to be its own.

【小题3】Why do birds keep on singing at nesting season?

A．Because they want to invite more friends.

B．Because their singing helps frighten outsiders away.

C．Because they want to find outsiders around.

D．Because their singing helps get rid of their fears.

【小题4】How does the writer explain birds’ singing?

A．By comparing birds with human beings.	B．By reporting experiment results.
C．By describing birds’ daily life.	D．By telling a bird’s story.

【小题5】What does the underline word “screaming” in paragraph 4 mean?

A．哭喊声

B．令人惊愕的

C．尖叫声

D．尖叫的

I was parked in front of the mall wiping off my ear．Coming my way across the parking lot

was 1  society would consider a bum(无业游民)．From the   2  of him，I could see he

had no car, no home，no clean clothes，and no money．He sat down in front of the bus stop but didn’t look like he could have enough money to even   3  in the bus．“That’s a very pretty car，”he said．He was ragged(衣衫褴褛的)，   4  he had a(an)   5   of dignity(尊严)around　him．I said，“Thanks”And　6 wiping off my car．He sat there   7  as I worked．The  8  beg for money never carne As the silence between us widened something inside said，“Ask him if he needs any help．”I was   9   that he would say“Yes”“Do you need any help?”I asked．He answered in three  10  but profound(深奥的)words that I shall never   11    “Don’t we  a11?”he said．

     I had been feeling high．successful and important   12  those three words   13    me like a shotgun Don’t we all? I needed help．Maybe not for bus fare or a place to sleep，but I needed help．I  14  my wallet and gave him not only enough for bus fare，but enough to get a warm meal and a 15   for the day, Those three little words still sound  16 ． No matter how much you have  17  ，you need help too No matter how   18  you have，no matter how   19   you are with problems，even without money or a place to sleep，you can  20   help．

1．A that              B．what                  C．which               D．how

2．A．movements      B．manners                C．1ooks             D．attitudes

3．A．ride             B．buy                    C．drive              D．stop

4．A．so              B．and                   C．therefore           D．but

5．A．air           B．atmosphere        C．appearance          D．figure

6．A．finished       B．stopped           C．continued        D．began

7．A．quietly        B．impatiently        C．aimlessly            D．eagerly

8．A．intended       B．expected          C．liked              D．planned

9．A．afraid         B．glad              C．doubtful           D．sure

10．A simple         B．ordinary          C．complex              D． normal

11．A．accept        B．forget              C．respond            D． choose

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

13．A．frightened     B beat                C．wounded        D． hit

14．A．reached in     B searched for         C．100ked up        D．exposed to

15．A．shelter        B．clothes            C．reward           D． blanket

16．A．nice          B．ridiculous(可笑的)  C．true               D．proper

17．A．contributed   B．devoted             C．given              D．achieved

18．A．few         B．many                C．little              D．much

19．A．10aded      B．puzzled               C．faced            D．unsatisfied

20．A．received     B．give                  C．need             D．seek

完形填空

　　Among the most popular books being written today are those which are usually classified as science fiction (幼想小说). Hundreds of 1 are published every year and are read by all kinds of people. 2 , some of the most successful films of recent years have been 3 on science fiction stories.

　　It is often thought that science fiction is a fairly new 4 in literature (文学), 5 its ancestors (祖先) can be found in books written hundreds of years ago. These books often 6 the presentation of some form of ideal (理想的) 7 , a theme which is 8 often found in modern stories.

　　Most of the classics (名著) of science fiction, 9 , have been written within the last one hundred years. Books 10 writers, such as Jules Verne and H. G. Wells, to 11 just two well-known authors, have been translated into many languages. 12 science fiction writers don't write about men from Mars of space adventure stories. They are more interested in predicting (预见) the effect of 13 progress 14 society and the human mind, or in 15 future worlds which are a 16 of the world, 17 we live in now. 18 of this their writing has obvious political undertones (含意). In an age when scientific fact frequently 19 science fiction, the writers may find it difficult to keep 20 of scientific advances.

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