My younger brother is not clever. He can’t answer questions right. My parents are worried about him. One day, I took him to a zoo. Then I asked him three questions. The first question was “What did you see in the zoo?”,the second question was “Who often give you money?”and the third was “What did you have for your breakfast?”. He couldn’t answer any of them. Then I told him again and again, the first answer is “elephants and bears”, the second answer is “my father and my brother”and the third answer is “bread and milk”. Then he retold(复述)the questions and answers. At last I asked the three questions again. He could give the right answers:1. elephants and bears, 2.my father and brother, 3.bread and milk. I was very happy.

When we got home, I told my parents that my brother could answer my questions correctly（正确地）. Then I began to ask him, “What did you see in the zoo?”“Bread and milk.”“Who often give you money?”“Elephants and bears.”“What did you have for breakfast?”Cried I angrily.“My father and brother”, he answered.

51.His parents are worried about his brother because _____________.

A. he is not clever         B. he is not cleverer than I    C. he is too clever    D. he is short

52.They saw ___________________ in the zoo.

A. tigers and bears           B. tigers and elephants

C. bears and elephants        D. tigers and pandas

53.His brother often gets money from  _____________.

A. his father and mother        B. his mother and him

C. his father and him           D. his father and my sister

54.From the story, we can know ___________.

A. his brother is easy to teach      B. his brother is not easy to teach

C. his father can teach the younger brother to answer questions

D. his mother can teach the younger brother

55.From this story, we can guess that when his parents heard the answers, they were ________.

A. happy         B. surprised       C. disappointed(失望)      D. shy(害羞)

 

Long long ago people made fires（火） from lightning（闪电）. But they had to keep the fires burning（燃烧）, for they couldn’t start it again if there was no lightning.  Later, they found out hitting two pieces of stone (石头) together could make a spark（火花）. The spark could fire dry leaves（树叶）. In this way they could make the fire again if it went out. Then people also learned to make a fire by rubbing（摩擦）. They made a hole on a big piece of wood（木头） and put a smaller stick（树枝） into the hole. They turned the stick again and again. After a few minutes they got a fire.

As years went by, people learned other ways to make a fire. Sometimes they used the heat（热） from the sun. They held a piece of glass in the right way and made a piece of paper on fire.

About two centuries（世纪） ago, people began to make matches（火柴）. Matches brought people a quick and easy way to make fires. Today matches are still being used, but people have more new ways to make fires. One of them is to use an electric（电子）fire starter. Of course an electric fire starter is much more expensive than a box of matches. But it is convenient.

56.A spark can ___________.

A. fire any leaves         B. burn anything     C. burn dry leaves     D. keep fires burning

57.We can also get a fire by ____________.

A. making a hole on a big piece of wood       B. putting a smaller stick into the hole

C. turning the stick hard for a while                   D. all above together

58.Matches have been used ___________.

A. for about two thousand years              B. for about two hundred years

C. since people began to use fire for cooking    D. since people used the heat from the sun

59.From this passage we know ___________.

A. an electric fire starter is widely used              

B. people haven’t used matches since they had electric fire starters

C. today there are only two ways to make fires

D. some forest fires happen from lightning

60.Choose the right order of the ways to make fires people got to know.

a. with a match       b. from the sun     c. from lightning     d. by rubbing

e. with an electric fire starter

A. a,b,c,d,e                   B. b,c,a,e,d      C. c,d,b,a,e        D. d,a,c,b,e

 

The sky usually looks blue. But if you went to the top of the highest mountain, where there is less air between you and the sun to scatter（分散） the sunlight（阳光）, the sky would be dark blue. And if you rode in a spaceship（飞船） high above the earth, where there is no air at all to scatter the sunlight, the sky would be so dark that it would be black.

Sometimes the sky doesn’t look blue. At sunrise（日出） and sunset（日落）, the light from the sun sometimes is scattered in such a way that you see red, orange, and other colours in the sky.

61.The sky usually looks light blue because _____________.

A. the sun is light and blue           B. the air is light and blue

C. the air scatters the sunlight         D. the sunlight is light and blue

62.When ______________, the sky looks dark blue.

A. there is less air between you and the sun     B. there is a high mountain far away

C. the mountains around us are very high       D. you climb a very high mountain

63.If ____________, the sky looks black.

A. you ride in a spaceship               B. the spaceship is high in the sky

C. the spaceship is high above the earth    D. there is no air to scatter the sunlight

64.Sometimes the sky doesn’t look blue because ____________.

A. the sun always rises in the east         B. the sun always sets in the west

C. the air in the sky has different colours  

D. the light from the sun is scattered in a different way

65.Which of the following is the best title for the story?

A. The Sky Looks Blue           B. Why the Sky Looks Colourful

C. The Beautiful Sunlight         D. Something about the Air