C
What is blood? It is the red liquid which comes out of your finger when you cut it. There are bout thirteen pints(品脱) of blood in a man' s body. He can give a pint of blood at a time to
blood bank for the use of other men who may need it. A healthy body makes up one pint of bloo
quickly.
What does our blood do for us? It takes food to all parts of our bodies and takes waste awa
from them. All the parts of our bodies are made up of cells, and these cells, which are very small
all need food all the time.
The blood is like a stream. The cells take what they need out of the blood stream, as plants an fishes take their food out of water. The blood stream carries food and oxygen which it has taken up our lungs to all the cells in the body.
What makes the blood go on moving round the body in a stream? The heart sends it round.
man' s heart is about the Size of his fist. The heart is a pump. It has rooms in it with doors betwee
them. It pumps blood in and out through these doors by changing the size of the rooms so that th
doors open and shut.
The heart keeps stream of blood going all round the body and back again to itself. Everywhel the blood stream does two things: supplies the cells with food and oxygen and takes away the waste It is as if the blood kept the little fires in the cells burning and took away the ashes.
49. Blood is the_____
A. red liquid which comes from your finger    B. red liquid which we can see
C. red liquid which flows in a man's body     D. red cell
50. The blood in a man' s body__________.
A. makes food all the time
B. takes food to all cells in the body and takes waste away
C. supplies the cells with food and oxygen from them
D. takes waste away from the cells
51. __ makes the blood go on moving round the body in a stream.
A. The heart          B. The lung          C. The cell          D. The pump
52. This article tells us about__________.
A. a stream of blood                        B. the use of the heart
C. a wonderful pump                       D. something about blood

B

As an effect of the high fuel prices spent on bus transportation, some American schools are changing to a four-day week. That means longer days instead of the traditional Monday through Friday schedule.

Having been approved for three years and beginning in the fall, students in the Maccray school district in Minnesota will be in school from Tuesday to Friday. Each school day will be 65 minutes longer. Officials say the district expects to save about sixty-five thousand dollars a year in transportation costs.

In new Mexico, the first school district changed to a four-day week in 1974 because of the Arab oil boycott(抵制). Now, 17 out of 89 districts use it.

In Custer, South Dakota, students have been going to school four days a week since 1995. Superintendent Tim Creal says the change has saved about one million dollars over just the past eight years. He sees other benefits, too. Students get more instructional time, and activities that used to take up class time are now held on non-school days. He says that in the future, the growth of online classes could make it possible to require even fewer days in school. High fuel prices are driving college students to take more online classes.

A four-day school week sounds like a great idea for students and teachers, but working parents may have to pay for child care for that fifth day.

1.According to Tim Creal, what makes it possible to have even fewer days in school?

A．The increasing number of private tutors.(私人教师)

B．The development of teaching methods.

C．The increase in the number of online classes.

D．The growth in the income of Americans.

2. It can be learned from the passage that______

A．students will be in school from Monday to Tuesday.

B．four-day week was first carried out in South Dakota.

C．Maccray will save one million dollars every year.

D．Minnesota state has approved the four-day week plan

3.The passage is mainly about______

A．some school’s four-day week plan         B．districts using a four-day week.

C．how to save on transportation fees.          D．expense of school transportation.

C

What is blood? It is the red liquid which comes out of your finger when you cut it. There are bout thirteen pints(???) of blood in a man' s body. He can give a pint of blood at a time to

blood bank for the use of other men who may need it. A healthy body makes up one pint of bloo

quickly.

What does our blood do for us? It takes food to all parts of our bodies and takes waste awa

from them. All the parts of our bodies are made up of cells, and these cells, which are very small

all need food all the time.

The blood is like a stream. The cells take what they need out of the blood stream, as plants an fishes take their food out of water. The blood stream carries food and oxygen which it has taken up our lungs to all the cells in the body.

What makes the blood go on moving round the body in a stream? The heart sends it round.

man' s heart is about the Size of his fist. The heart is a pump. It has rooms in it with doors betwee

them. It pumps blood in and out through these doors by changing the size of the rooms so that th

doors open and shut.

The heart keeps stream of blood going all round the body and back again to itself. Everywhel the blood stream does two things: supplies the cells with food and oxygen and takes away the waste It is as if the blood kept the little fires in the cells burning and took away the ashes.

49. Blood is the_____

A. red liquid which comes from your finger    B. red liquid which we can see

C. red liquid which flows in a man's body     D. red cell

50. The blood in a man' s body__________.

A. makes food all the time

B. takes food to all cells in the body and takes waste away

C. supplies the cells with food and oxygen from them

D. takes waste away from the cells

51. __ makes the blood go on moving round the body in a stream.

A. The heart          B. The lung          C. The cell          D. The pump

52. This article tells us about__________.

A. a stream of blood                        B. the use of the heart

C. a wonderful pump                       D. something about blood

C

      What is blood? It is the red liquid which comes out of your finger when you cut it. There are bout thirteen pints(品脱) of blood in a man' s body. He can give a pint of blood at a time to

blood bank for the use of other men who may need it. A healthy body makes up one pint of bloo

quickly.

      What does our blood do for us? It takes food to all parts of our bodies and takes waste awa

from them. All the parts of our bodies are made up of cells, and these cells, which are very small

all need food all the time.

      The blood is like a stream. The cells take what they need out of the blood stream, as plants an fishes take their food out of water. The blood stream carries food and oxygen which it has taken up our lungs to all the cells in the body.

      What makes the blood go on moving round the body in a stream? The heart sends it round.

man' s heart is about the Size of his fist. The heart is a pump. It has rooms in it with doors betwee

them. It pumps blood in and out through these doors by changing the size of the rooms so that th

doors open and shut.

      The heart keeps stream of blood going all round the body and back again to itself. Everywhel the blood stream does two things: supplies the cells with food and oxygen and takes away the waste It is as if the blood kept the little fires in the cells burning and took away the ashes.

49. Blood is the_____

     A. red liquid which comes from your finger    B. red liquid which we can see

     C. red liquid which flows in a man's body     D. red cell

50. The blood in a man' s body__________.

      A. makes food all the time

      B. takes food to all cells in the body and takes waste away

      C. supplies the cells with food and oxygen from them

      D. takes waste away from the cells

51. __ makes the blood go on moving round the body in a stream.

      A. The heart          B. The lung          C. The cell          D. The pump

52. This article tells us about__________.

      A. a stream of blood                        B. the use of the heart

      C. a wonderful pump                       D. something about blood

What is freedom? It seems like such a simple question. Freedom is being able to do what you want to do. Allow me to explain it.
I’m tired of working for a living. I’d rather collect taxes. So that’s what I’m going to do: collect a kind of tax. You are ordered to estimate your income from the past 12 months, and write me a check for 1%. I have provided a mailing address for this purpose on my contact page …
What? You have a problem with my plan? Oh, I see. If you have to send me a check for the tax, then I have hurt your freedom to spend that money as you see fit. We have a conflict! And our basic problem is: we cannot enjoy freedom at the same time; we must settle for a limit. But what limit?
Libertarians (自由论者) believe freedom should be based on self-control. They describe freedom as being able to do what you want to do as long as it doesn’t influence the equal right of others to do what they want to do. That is, freedom is being able to do what you like as long as you do not harm another person’s life, liberty or property.
You can build a set of legal and ethical (道德的) rules on the principle of self-control, and libertarians do. Their request for self-control often becomes more important than common sense, or even freedom itself.
The definition rules out the freedom to steal, murder, and so on. Otherwise, you can do whatever you want. There is no problem until you realize that taxation is theft, that war is murder, and that national service is a form of slavery. Since only the government has a legal right to use force, libertarians focus on making the government smaller, or even going without it. The libertarians’ definition of freedom is thus freedom from the government. Isn’t it ridiculous?

1. 1.

   According to the first three paragraphs, the author’s idea of collecting taxes is _________.

   1. A.
      reasonable
   2. B.
      responsible
   3. C.
      unacceptable
   4. D.
      understandable
2. 2.

   The author takes tax-collecting as an example in the passage to prove that freedom is _________.

   1. A.
      unreal
   2. B.
      unbelievable
   3. C.
      achievable
   4. D.
      limited
3. 3.

   In the opinion of libertarians, freedom is realized mainly by _________.

   1. A.
      the law
   2. B.
      self-control
   3. C.
      ethical rules
   4. D.
      common sense
4. 4.

   Which of the following statements is supported by libertarians according to the passage?

   1. A.
      National service should be canceled.
   2. B.
      People can do whatever they want.
   3. C.
      The government should have more power.
   4. D.
      They should be governed by the government.