题目内容

Can you imagine traveling to work in a one-man submarine?

Scientists believe that someday one-man submarines will be as numerous as automobiles today. One says," One day soon, men will walk on the ocean floor as they do on the street. " Perhaps during your life time, people will travel, work and live under the sea.

  Ships carrying oil and articles of trade will move beneath the ocean. Passenger ships will be built to travel underwater, where storms cannot delay them or make people seasick. Special underwater ships will be designed for mining, fishing, and exploring unknown areas. For military use, there may be submarines that can fly and then dive underwater to approach the battle area without being seen.

   First, however, the human problems associated with living in the ocean will need to be studied in detail. Many of these problems are the same as the problems of living in outer space: pressure, lack of oxygen, and weightlessness. Already scientists have begun to study these problems.

    In 1963 and 1964 scientists and Navy divers lived and worked underwater for several days in two projects which were called Sealab I and Sealab II. The Sealab II experiment kept the scientists and divers 215 feet below the surface for thirty days, studying marine biology, temperature, pressure, currents, and ocean bottom geology.

   Many puzzling questions remain unanswered, however. Man's warm blood makes it difficult for him to live long in the sea without some kind of warmth. Can our blood be changed to fit new water surroundings? What will happen to our muscles if we live in the water very long? Will they become soft away from our usual land existence? Will bones become weak and our blood pressure change? Scientists are searching for answers.

   By studying plants and animals deep in the ocean, scientists may find a cure for some of our most serious human diseases. We may learn to use plants to increase our world food supply. Engineers may learn to use the power of the sea by building huge walls to catch the force of the tides.

 

56. In the passage, the author is talking to us about the problems of ________

   A. pressure, lack of oxygen, and weightlessness in the sea

   B. living, working below the ocean

   C. underwater submarine

   D. walking on the ocean floor

57. According to the author,in future,passenger ships might be the ones that can ________

    A. be used for mining, fishing and exploring unknown areas

    B. carry oil and articles of trade

    C. travel underwater, not affected by storm

    D. fly and then dive underwater

58. Whether we live in the sea or in outer space, first of all we should think of_______

    A. health and food                  B. safety and temperature

    C. temperature and oxygen      D. pressure, oxygen and gravity

59. Which of the following is TRUE?

    A. Sealab I worked for more than thirty days below the surface.

    B. Sealab II worked for thirty days under the sea for exploring unknown areas.

    C. Sealab II kept the scientists over 200 feet below the surface, studying temperature, pressure and so on.

    D. Sealab I and Sealab II kept the scientists 215 feet below the surface for thirty days.

60. To become used to living in the sea, we should try to __

A. increase the amount of our blood         

B. keep our blood warm

C. soften our muscles                     

D. warm our bones

练习册系列答案
相关题目

阅读理解

  Talking on mobile phone is expensive, so a lot of people send text messages are much cheaper than talking on a mobile phone, and you can make it even cheaper by shortening the words that you use.You can do this by taking out “unimportant” letters in the words and using numbers instead of words(2=to, 3=free, 4=for, 8=ate, h8=hate, etc.)Here is an example:Im 3 nw, why nt gv me a cll?(I’m free now, why not give me a call)

  Mobile phone users have developed a series of symbols(一系列符号)to show how they feel.They are called emoticons(情感符号).To read an emoticon, you have to look at it sideway.For example, if you say something in a text message which is a joke, you can follow it with a smiling face.like this:Why didt u cll me?Im so sad.:-)

  Here are some others.Can you think of these text messages where you could use them?

  :-( sad :-< really sad | - | asleep :-v shouting 8-| surprised

(1)

Talking on a mobile phone is ________ than sending text messages.

[  ]

A.

slower

B.

cheaper

C.

more expensive

D.

more interesting

(2)

Mobile phone users use emotions to show ________.

[  ]

A.

what they do

B.

who they are

C.

where they talk

D.

how they feel

(3)

What do you think this text message“whr hv U bn?Im wtng 4 U”means?

[  ]

A.

Where have you been?I’m waiting for you.

B.

Where have you been?I’m looking for you.

C.

What are you doing?I’m waiting for you.

D.

What are you doing?I’m looking for you.

(4)

Which one means“laughing”in the text messages?

[  ]

A.

:-(

B.

:-)

C.

:-<

D.

8->|

Talking on a mobile phone is expensive, so a lot of people send text messages. Text messages are much cheaper than talking on a mobile phone, and you can make it cheaper by making the words shorter. You can do this by taking out “unimportant” letters in the words and using numbers instead of words (2 = to, 3 = free, 4 = for, 8 = ate, so h8 = hate, etc.). You can also keep away from using punctuation (标点). Here is an example: Do U wnt 2 g 2 th cnma tnite (Do you want to go to the cinema tonight?)

What do you think these text messages mean?

Whr hv U bn? Iv bn wtng hrs fr a cll.

Im hm nw, why nt gv me a cll.

I gt a txt mssge frm my frnd. Shes hvng a prty on Strdy.

Mobile phone users have developed a group of symbols (符号) to show how they feel. They are called emoticons, and there are some examples below. To read an emoticon, you have to look at it sideways. For example, if you say something in a text message that is a joke, you can follow it with a smiling face. Like this: Why didt u call me? I’m so sad.   (

Here are some others. Can you think of text messages where you could use them?

) laughing     ( sad     < really sad

Ⅴ shouting    |·| asleep    :0 shocked

8·| surprised    \·o bored

Why are text messages popular?

A. Because they are expensive.             B. Because they are cheap.

C. Because they are hard to write.          D. Because they are not important.

The first paragraph tells us that we can make the text messages shorter in             ways.

A. one          B. two          C. three          D. four

What does this text message “Do U wnt 2 cm?” mean? It means “                    ?”.

A. Do you want to come                      B. Do you wear two caps

C. Do you want two cakes                    D. Do you go home early

Why do people use emoticons?

A. Because they can show how users feel.  B. Because the symbols are beautiful.

C. Because text messages are short.         D. Because the users can’t make the words shorter.

  Talking on a mobile phone is expensive, so a lot of people send text messages. Text messages are much cheaper than talking on a mobile phone, and you can make it even cheaper by shortening the words that you use. You can do this by taking out “unimportant” letters in the words and using numbers instead of words(2=to, 3=free, 4=for, 8=ate, h8=hate, etc. ). Here is an example :Im 3 nw, why nt gv me a cll? (I’m free now, why not give me a call?)

Mobile phone users have developed a series of symbols to show how they feel. They are called emoticons(情感符号). To read an emoticon, you have to look at it sideways. For example, if you say something in a text message which is a joke, you can follow it with a smiling face. Like this: Why did t u cll me? Im so sad. ∶-)

  Here are some others. Can you think of these text messages where you could use them?

  ∶·)laughing∶ ·(sad∶·<really sad

  ∶·v shouting| · | sleep∶ o shocked

  8 · | surprised\· o bored

1. The underlined word “sideways” in this passage means______ .

A. 从侧面地    B. 从旁边地

C. 斜眼地   D. 颠倒地

2. What do you think of this text message “Whr hv U bn? Im wtng 4 U”means?

A. Where have you been? I’m waiting for you.

B. Where have you been? I’m looking for you.

C. What are you doing? I’m waiting for you.

D. What are you doing? I’m looking for you.

3. Which one means“laughing” in the text messages?

A. ∶·(          B. ∶· )

C. ∶· <     D. 8 ·

 

Talking on a mobile phone is expensive, so a lot of people send text messages. Text messages are much cheaper than talking on a mobile phone, and you can make it cheaper by making the words shorter. You can do this by taking out “unimportant” letters in the words and using numbers instead of words (2 =" to," 3 =" free," 4 =" for," 8 =" ate," so h8 =" hate," etc.). You can also keep away from using punctuation (标点). Here is an example: Do U wnt 2 g 2 th cnma tnite (Do you want to go to the cinema tonight?)
What do you think these text messages mean?
Whr hv U bn? Iv bn wtng hrs fr a cll.
Im hm nw, why nt gv me a cll.
I gt a txt mssge frm my frnd. Shes hvng a prty on Strdy.
Mobile phone users have developed a group of symbols (符号) to show how they feel. They are called emoticons, and there are some examples below. To read an emoticon, you have to look at it sideways. For example, if you say something in a text message that is a joke, you can follow it with a smiling face. Like this: Why didt u call me? I’m so sad.   (
Here are some others. Can you think of text messages where you could use them?
) laughing     ( sad    < really sad
Ⅴ shouting    |·| asleep   :0 shocked
8·| surprised    \·o bored
【小题1】Why are text messages popular?

A.Because they are expensive.B.Because they are cheap.
C.Because they are hard to write.D.Because they are not important.
【小题2】The first paragraph tells us that we can make the text messages shorter in             ways.
A.oneB.twoC.threeD.four
【小题3】 What does this text message “Do U wnt 2 cm?” mean? It means “                   ?”.
A.Do you want to comeB.Do you wear two caps
C.Do you want two cakesD.Do you go home early
【小题4】Why do people use emoticons?
A.Because they can show how users feel.B.Because the symbols are beautiful.
C.Because text messages are short.D.Because the users can’t make the words shorter.

Talking on a mobile phone is expensive, so a lot of people send text messages. Text messages are much cheaper than talking on a mobile phone, and you can make it cheaper by making the words shorter. You can do this by taking out “unimportant” letters in the words and using numbers instead of words (2 =" to," 3 =" free," 4 =" for," 8 =" ate," so h8 =" hate," etc.). You can also keep away from using punctuation (标点). Here is an example: Do U wnt 2 g 2 th cnma tnite (Do you want to go to the cinema tonight?)

What do you think these text messages mean?

Whr hv U bn? Iv bn wtng hrs fr a cll.

Im hm nw, why nt gv me a cll.

I gt a txt mssge frm my frnd. Shes hvng a prty on Strdy.

Mobile phone users have developed a group of symbols (符号) to show how they feel. They are called emoticons, and there are some examples below. To read an emoticon, you have to look at it sideways. For example, if you say something in a text message that is a joke, you can follow it with a smiling face. Like this: Why didt u call me? I’m so sad.   (

Here are some others. Can you think of text messages where you could use them?

) laughing     ( sad    < really sad

Ⅴ shouting    |·| asleep   :0 shocked

8·| surprised    \·o bored

1.Why are text messages popular?

A.Because they are expensive.

B.Because they are cheap.

C.Because they are hard to write.

D.Because they are not important.

2.The first paragraph tells us that we can make the text messages shorter in             ways.

A.one

B.two

C.three

D.four

3. What does this text message “Do U wnt 2 cm?” mean? It means “                   ?”.

A.Do you want to come

B.Do you wear two caps

C.Do you want two cakes

D.Do you go home early

4.Why do people use emoticons?

A.Because they can show how users feel.

B.Because the symbols are beautiful.

C.Because text messages are short.

D.Because the users can’t make the words shorter.

 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网