() all we have learned from space flights, the moon is still

题目
单选题
() all we have learned from space flights, the moon is still a riddle from the distant past.
A

Insteadof

B

Inspiteof

C

Insearchof

D

Becauseof

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相似问题和答案

第1题:

A

When you look at the sky at night,the moon looks bigger than the stars. In fact,the moon is much smaller than the stars.It is much smaller than the earth. But the moon is much closer to us than any star. That is why it looks so big. If you hold a coin close.to your eye,it looks big.If you look at it across the room,it looks small.The moon moves around the earth. It makes one trip in about four weeks. The moon looks flat(扁的)to us. But it is a round ball,like the earth.People once thought the moon had fire(火) on it. They thought the fire made it bright.Now we know the moon is like a mirror( 镜子 ). It gets its light from the sun Our sunlight comes from the sun,too: What is the sun? The sun is star. The stars we can see have their own light. There are many big stars we can-t see. Their light has burned out. Others are still bright,but they are so far away that we can-t see them. The sun looks bigger and much brighter than other stars because it is the nearest of all stars. The sun and the other stars we see are very hot,but the air around us saves us from(使------免于) the heat(热量) of the sun.The sun gives us light and warmth.It makes plants grow and leaves turn green. It makes life possible on our earth.It is a life-giving star.

( )21. The moon looks bigger because__________ .

A. some stars are smaller than it

B.it is between the sun and the earth

C.it is the closest to the earth

D.it is very bright


正确答案:C
.21.C 【解析】由第一段中。But the moon is much closer to us than any star.打可知。

第2题:

We should apply what we've learned from books ____ (介词)(把 ...... 应用于) the task.


参考答案:to

第3题:

From this passage we get to know that ________.

A. not all people like pop stars

B. pop stars have their own bands

C. fans are troublesome for pop stars

D. to be a pop star is not all fun


正确答案:D

第4题:

Believe it or not,the day when you can go to the moon is coming soon.You can go into space (11) space shuttle.It (12) about three days for the shuttle to go from the earth to the moon. The shuttle flies a long way to a space station. You can stay there for a short rest and then it will (13) you to the moon.

Now you can jump out of the shuttle. But you mustn't take (14) your spacesuit,because it is very hot in the daytime and very cold at night on the moon. The moon is much smaller than the earth. Things are (15) 0n the moon than they are on the earth. You can jump high every time you take a step. You will find that it is never tiring to walk on the moon. You don't need to take an umbrella or a raincoat with you,(16) there is no rain on the moon You can hear (17) because there is no air on the moon. And there are no animals or(18) living things there.

The moon moves more slowly than the earth,so one day on the moon is as long as two weeks on the earth and one night is just as long as two weeks on the earth. What could you do in (19 )long days and nights and in a silent world?' Now scientists are trying to make the (20) 0f the moon. But our earth is really a far better place to live,as long as we take good care of it,

( )11.

A.on

B.in

C.by

D.with


正确答案:C
11.C【解析】构成"by+交通工具”结构,by space shuttle意为“乘航天飞机”。

第5题:

By the time the course ends, ( ) a lot about the British way of life.

A. we have learned

B. we'll learn

C. we are learning

D. we'll have learned


正确答案:D    

第6题:

All flights ( ) because of the snowstorm, we could do nothing but ( ) the train.

A、were cancelled/ to take

B、having been cancelled/ take

C、have been cancelled/ take

D、had been cancelled/ to take


参考答案:C

第7题:

John: Hurry up! We don’t have much time left.

Peter: ________ We still have two hours.

Jone: Come on! This is my first time ever to take a plane. I don ’t want anything to go wrong.

A: Go on.

B: Look out.

C: All right.

D: Take it easy.


参考答案:D

第8题:

我们从特供商场购买食品,并加强对所购食品的检查

A.We’ll buy all the food from supermarket and check all the food we buy carefully

B.We’ll buy all the food from foreign countries and check all the food we buy carefully

C.We’ll import all the food and check all the food we buy carefully

D.We’ll buy all the food from exclusive shops and check all the food we buy carefully


正确答案:D

第9题:

下面的例子采用的是______。 The following fli

下面的例子采用的是______。 <? xml version="1.0"?> <FlightInfo> <Intro> The following flights have available seats: <SelectStmt>SELECT Airline,FltNumber,Depart,Arrive FROM Flights</SelectStmt> <Conclude>We hope one of these meets your needs</Conclude> </FlightInfo>

A.模型驱动

B.表格驱动

C.模板驱动

D.对象驱动


正确答案:C

第10题:

共用题干
Rockets in the Sky
If someone asked you,"What color is the sky?"I expect that you would answer,"Blue."I am afraid that you would be wrong.The sky has no color.When we see blue,we are looking at blue sunlight.The sunlight is shining on little bits of dust in the air.
We know that there is air all around the world.We could not breathe without air.Airplanes could not fly without air.They need air to lift their wings.Airplanes cannot fly very high because as they go higher the air gets thinner.If we go far enough away from the earth,we find there is no air.
What is the sky?The sky is space.In this space there is nothing except the sun,the moon and all the stars. Scientists have always wanted to know more about the other worlds in the space.They have looked at them through telescopes and in this way they have found out a great deal.The moon is about 384 ,000 kilometers away from the earth.An airplane cann't fly to the moon but there is a thing that can fly even when there is no air. This is rocket.
I am sure that you are asking,"How does a rocket fly?"If you want to know,get a balloon and then blow it up until it is quite big.Do not tie up the neck of the balloon.Let go!The balloon will fly off through the air very quickly.The air inside the balloon tries to get out.It rushes out through the neck of the balloon and this pushes the balloon through the air.It does not need wings like an airplane.
This is how a rocket works.It is not made of rubber(橡胶)like a balloon,of course.It is made of metal. The metal must not be heavy but it must be very strong.There is gas inside the rocket which is made very hot. When it rushes out of the end of the rocket,the rocket is pushed up into the air.
Rockets can fly far out into space.Rockets with men inside them have already reached the moon.Several rockets,without men inside them,have been sent to other worlds much farther away.One day rockets may be able to go anywhere in the space.

When an airplane flies too high,______.
A:the air will be too thin to support its wings
B:the air will become thicker
C:the air will exert pressure on it
D:the air will disappear in no time

答案:A
解析:
根据第一段第四句可知,天空没有颜色。
根据第二段第五句“Airplanes cannot fly very high because as they go higher the air gets thinner.”可知,由于位置越高,空气越稀薄,飞机飞不了太高。
根据第五段可知,火箭飞行的原理与没扎口的膨胀的气球相似。
根据第六段最后一句“When it rushes out of the end of the rocket , the rocket is pushed upinto the air.”可知,火箭是由热气流高速向后喷出所产生的反作用力来推动的,而不是由内部燃烧的气体推动的。
根据第六段最后一句可知,当热气从火箭尾部冲出时,火箭被送人空中。C项中的“itsbottom”是第六段最后一句中的“the end of the rocket”的同义转换。

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