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C
The earth looks like a huge blue ball in space,because three-fourths of the surface of the earth is covered by water. However,the continents (大陆) are brown—they are like small islands. They are floating in the huge,blue sea. The earth is about a 25,000-mile round ball. It will take a spaceship only 90 minutes to fly around the widest part of the ball.
Even if spaceships have traveled to the moon,people can not visit the moon without special suits because there is no air or water there. Living things can't live there,either. The first astronauts to the moon are from America. In 1969,they achieved the dream of stepping on the moon and brought back moon soil and rocks.
The sun is the closest star to the earth. The burning gases from the sun are so hot that they warm everything on the earth from 93 million miles away. In the daytime,the earth faces the sun,and we can see everything. During the night,the earth turns away from the sun,and then we face the darkness.
根据材料内容选择最佳答案。
(
A. Because most of the earth is covered by land.
B. Because the sun's rays make the earth look blue.
C. Because most of the earth is covered by water.
D. Because clouds wrap around the earth.
(
A. Blue.
B. White.
C. Brown.
D. Black.
(
A. About 90 minutes.
B. About 90 days.
C. About 90 weeks.
D. About 90 hours.
(
A. In 1969.
B. In 1968.
C. In 1967.
D. In 1966.
(
A. Because a full moon forms.
B. Because the earth turns away from the moon.
C. Because the earth turns away from the sun.
D. Because the earth faces the sun.
The earth looks like a huge blue ball in space,because three-fourths of the surface of the earth is covered by water. However,the continents (大陆) are brown—they are like small islands. They are floating in the huge,blue sea. The earth is about a 25,000-mile round ball. It will take a spaceship only 90 minutes to fly around the widest part of the ball.
Even if spaceships have traveled to the moon,people can not visit the moon without special suits because there is no air or water there. Living things can't live there,either. The first astronauts to the moon are from America. In 1969,they achieved the dream of stepping on the moon and brought back moon soil and rocks.
The sun is the closest star to the earth. The burning gases from the sun are so hot that they warm everything on the earth from 93 million miles away. In the daytime,the earth faces the sun,and we can see everything. During the night,the earth turns away from the sun,and then we face the darkness.
根据材料内容选择最佳答案。
(
C
)31. Why is the earth blue when we see the earth from outer space?A. Because most of the earth is covered by land.
B. Because the sun's rays make the earth look blue.
C. Because most of the earth is covered by water.
D. Because clouds wrap around the earth.
(
C
)32. What color are the continents when seen from the space?A. Blue.
B. White.
C. Brown.
D. Black.
(
A
)33. According to the text,how long does a spaceship need to fly around the widest part of the earth?A. About 90 minutes.
B. About 90 days.
C. About 90 weeks.
D. About 90 hours.
(
A
)34. When did people first visit the moon?A. In 1969.
B. In 1968.
C. In 1967.
D. In 1966.
(
C
)35. Why does the earth have night?A. Because a full moon forms.
B. Because the earth turns away from the moon.
C. Because the earth turns away from the sun.
D. Because the earth faces the sun.
答案:
31—35 CCAAC
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