对
错
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
第2题:
If the neutron star is very large(much bigger than our sun)the process of shrinking may be so intense that a black hole______(result).
第3题:
A. is biggest than any other one
B. is bigger than any other one
C. is more bigger than any other one
D. is bigger than any one
第4题:
第5题:
A.older four years
B.as four years older
C.four years older
D.four years bigger
第6题:
24. The passage tells us __________.
A. the sun is not the biggest star
B. the sun is bigger than any other star
C. only the sun can shine
D. the sun is one of the farthest stars from us
第7题:
A、ones
B、ones'
C、one's
D、once
第8题:
29. The Browns tlunk that a small dog_________.
A. doesn-t need any room to keep .
B. can help them watch their house
C. eats less food than a bigger one
D. usually has a beautiful name
第9题:
A VLCC(100,000 DWT+)with a 30,000 Shaft Horsepower Steam Turbine is slow to respond to engine movements and has less stopping power than normal ships because it has a ______.
A.Bigger propeller
B.Smaller power weight ratio
C.Smaller propeller
D.Larger power weight ratio
第10题:
The bigger your audience,() complicated communication channel choice becomes.
Amore
Bit is more
Cthe more
Dthe most