After many experiments, Galileo drew a c that light things drop onto the ground at the same time as heavy things if no air holds them back. 查看更多

 

题目列表(包括答案和解析)

阅读理解

阅读下列短文,从每题所给四个选项(A,B,C和D)中,选出最佳选项.

  Man always wanted to fly. For hundreds of years they watched birds flying and wished that they could fly, too. Birds fly very easily. They spread(展开) their wings(翅膀) and float (漂浮) on the air. The air keeps them up for many hours.“If birds and kites can stay up in the air, perhaps we can, too.”they thought.

  At first they made wings like birds. Then they jumped off high buildings in order to fly. Many men did this but they all failed. After many failures (失败) they stopped trying to fly with wings. Then two brothers tried another way. They tried balloons (气球).“Hot air is lighter than cold air,”they said, “That is why hot air goes upwards. If we fill a balloon with hot air, it will go upwards.”

  After many experiments, they made two men go up in a balloon full of hot air. A great crowd of people watched. The balloon rose to a height (高度) of 900 metres. The wind blew it along for nine kilometers. Then it came gently back to earth. For the first time man traveled through the air!

1.Hundreds of years ago men realized that ________.

[  ]

A.birds fly easily because there is air

B.birds fly easily because they are small

C.birds fly easily because they have wings

D.birds fly easily because they are light

2.When some men tried to fly with wings, ________.

[  ]

A.only a few of them succeeded

B.only the two brothers succeeded

C.many of them succeeded

D.none of them succeeded

3.Which of the following did men first think of when they wanted to fly?

[  ]

A.Birds.
B.Hot air.
C.Balloons.
D.High buildings.

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完形填空

  Rivers can be young, 1 and old. Young rivers are the 2 that are busy 3 valleys shaped like the letter V 4 they rush down from mountain. The 5 water and pieces of rock 6 down the river and rub away the land. These pieces of rock become 7 rounded stones and sand, soil is washed 8 the river in the 9 of mud.

  After many 10 years, the mountains and the slopes(斜坡) on 11 side of the river 12 worn down (磨掉). As valley becomes 14 and its shape looks more 15 the letter U. This is a middle-aged river.

  An 16 river has almost finished the job of wearing away the land. The land along 17 banks is 18 . The water moves 19 , except at flood times, and 20 only fine mud. It winds(蜿蜒)like the letter S through the wide plain(平原).

1.

[  ]

A.new
B.long
C.wide
D.middle-aged

2.

[  ]

A.ones
B.those
C.cutting out
D.river

3.

[  ]

A.going into
B.crossing
C.cutting out
D.passing by

4.

[  ]

A.as
B.before
C.after
D.where

5.

[  ]

A.flow
B.running
C.rush
D.speed

6.

[  ]

A.fallen
B.flown
C.swept
D.drop

7.

[  ]

A.large
B.small
C.good
D.nice

8.

[  ]

A.in
B.onto
C.up
D.down

9.

[  ]

A.form
B.shape
C.use
D.need

10.

[  ]

A.thousand of
B.thousand
C.thousands of
D.thousands

11.

[  ]

A.every
B.each
C.all
D.both

12.

[  ]

A.were
B.was
C.are
D.is

13.

[  ]

A.in hurry
B.not in hurry
C.in such a hurry
D.not in such a hurry

14.

[  ]

A.wider
B.wide
C.small
D.smaller

15.

[  ]

A.as
B.as like
C.like
D./

16.

[  ]

A.young
B.old
C.large
D.small

17.

[  ]

A.it's
B.its
C.their
D.theirs

18.

[  ]

A.flat
B.steep
C.more
D.less

19.

[  ]

A.quickly
B.quick
C.slowly
D.fast

20.

[  ]

A.takes
B.brings
C.fetches
D.carries

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阅读理解

  Nine-year-old Louis Pasteur rushed into the little house, with his face pale

  “Mother, he cried, A mad dog bit my friend Henry, and now they are burning him with red hot irons(烙铁)It's terrible.”

  “Rabies(狂犬病), LouisBurning the bites is the only hope of stopping Henry from catching the disease.”

  Henry did get rabies and died some days later, in great painLouis Pasteur never forgot“One day,” he thought, “I must do something to help people like Henry

  Sixteen years later, Pasteur became a Doctor of ScienceAnd he began making important discoveries in his special field

  Pasteur achieved great success in his lifeBut during the years of research he lost the use of his left arm and legYet he worked on and on, as hard as ever, as he was eager to find a way of curing rabiesHe never forgot his friend Henry

  After many dangerous experiments on mad dogs, he finally found the answerJust then a boy who had been badly bitten by a mad dog arrived at his labPasteur treated him carefullyA few days later, the boy got betterHe did catch rabies

  The discovery gave new hope to people in many countriesPeople sent money to help build the Pasteur Institute in ParisToday it is one of the world's most famous centers for research

(1)

Why did they burn Henry with red hot irons?

[  ]

A.

To prevent him from having rabies

B.

To carry out an experiment

C.

To cure his disease

D.

To discover the reason for the disease

(2)

Pasteur became a Doctor of Science at the age of ________

[  ]

A.

twenty-four

B.

twenty-five

C.

twenty-six

D.

twenty-seven

(3)

The fact that people in many countries sent money to help build the Pasteur Institute shows that ________

[  ]

A.

Pasteur was respected by people

B.

people supported Pasteur's research on rabies

C.

people knew he lived a poor life

D.

people rewarded Pasteur for the discovery

(4)

Though Pasteur was in poor health, he worked hard in order to ________

[  ]

A.

make a living

B.

prevent dogs from getting rabies

C.

find a good way to cure rabies

D.

protect children from getting rabies

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根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

    1   He had more money than he could ever spend, and he was admired and looked up to by his community.  2   He wasn't happy.All his life he had been pursuing happiness and striving(奋斗)for happiness, but he had never been able to find it.

  Then one day he heard about a hidden temple in Nepal that had a special room that contained the secret of happiness.  3   After many years of searching and countless hardships he arrived there.He was tired and penniless, but he knew that none of that mattered now because he had found the temple.He asked a wise, smiling monk(僧侣)if he could enter the special room.The monk agreed and showed him the stairs leading to the room.  4   He stared into the room with sunlight steaming through the window and saw what he had come so far to find.There hanging on the wall was the secret of happiness.The man gazed at his reflection in the mirror and laughed.

    5   Happiness is a choice that we can make.Don't spend the rest of your life searching the world for happiness then.Just look in the mirror and laugh.Just let the happiness flow from your heart, mind, and soul until it fills your life and the lives of all those around you.

A.He immediately sold all that he owned and set out to find this hidden temple.

B.It was difficult to find the temple in Nepal.

C.No one found the secret of happiness at last.

D.But he knew that something was missing in his life.

E.There once was a very wealthy and successful man.

F.He climbed them with legs shaking with expectation and slowly opened the door.

G.It is time that we all realized that we were the secret of our own happiness.

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阅读下面短文,掌握其大意,然后从各题所给的A、B、C、D四个选项中,选出最佳选项。

  Back in the 15th century, in a tiny village in Germany, lived a family with eighteen children.Eighteen! In order   1   to keep food on the table, the father, a goldsmith(金匠)by   2   , worked almost eighteen hours a day at his trade.Despite their apparently   3   condition, two of the eldest children had a dream.They both wanted to pursue their talent for art,   4   they knew well that their father would never be able to   5   either of them to study at the Academy.

  After many long discussions at night in their   6   bed, the two boys finally worked out an agreement.They would toss(掷)a coin.The   7   would go down into the nearby mines and, with his earnings,   8   his winning brother for the academy.Then, in four years, he would support the other one.Then Albrecht Durer won the toss and   9   to Nuremberg.Albert went down into the dangerous mines and, for the next four years,   10   his brother, whose work at the academy was almost an immediate sensation(轰动).By the time he graduated, he was beginning to   11   considerable fees for himself.

  When the young artist   12   home and said to his brother, "And now, Albert, blessed brother of mine, now it is your   13  .Now you can go to the Academy to pursue your dream, and I will   14   you."

  Albert rose and wiped the   15   from his cheeks."No, brother.I cannot go to Nuremberg.It is too   16   for me.Look…look what four years in the mines have done to my   17   ! I cannot even hold a glass, much less make delicate lines on canvas(画布)   18   a pen or a brush."

  More than 450 years have   19  .By now, among Albrecht Durer's hundreds of masterful portraits, "The Praying Hands" is one   20   creation that can catch the world's hearts.

(1)

[  ]

A.

merely

B.

fully

C.

completely

D.

entirely

(2)

[  ]

A.

heart

B.

method

C.

profession

D.

words

(3)

[  ]

A.

demanding

B.

promising

C.

hopeless

D.

careless

(4)

[  ]

A.

so

B.

and

C.

however

D.

but

(5)

[  ]

A.

study

B.

send

C.

give

D.

offer

(6)

[  ]

A.

separated

B.

crowded

C.

new

D.

unusual

(7)

[  ]

A.

winner

B.

loser

C.

old

D.

younger

(8)

[  ]

A.

support

B.

advertise

C.

expect

D.

require

(9)

[  ]

A.

flew away

B.

went off

C.

set aside

D.

left behind

(10)

[  ]

A.

deserved

B.

desired

C.

financed

D.

envied

(11)

[  ]

A.

spend

B.

save

C.

draw

D.

earn

(12)

[  ]

A.

arrived

B.

regained

C.

returned

D.

got

(13)

[  ]

A.

turn

B.

time

C.

top

D.

fate

(14)

[  ]

A.

take charge of

B.

make up for

C.

make use of

D.

take care of

(15)

[  ]

A.

smiles

B.

sweats

C.

tears

D.

hints

(16)

[  ]

A.

late

B.

nervous

C.

tiring

D.

tense

(17)

[  ]

A.

eyes

B.

hands

C.

pictures

D.

mines

(18)

[  ]

A.

in

B.

of

C.

upon

D.

with

(19)

[  ]

A.

passed

B.

kept

C.

remembered

D.

changed

(20)

[  ]

A.

strange

B.

touching

C.

wonderful

D.

mysterious

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