Mars(火星) is the fourth planet from Sun. It is home to both the highest mountain and the deepest, longest valley(山谷) in the solar system(太阳系). Olympus Mons, the highest mountain on Mars, is about 27 kilometers high, about three times as tall as Qomolangma. And the deepest valley on Mars reaches as deep as 10 kilometers and runs east west for about 4, 000 kilometers, about one fifth of the distance around Mars and close to the width of Australia.
Mars is much colder than Earth because it’s farther away from Sun. The highest temperature can reach 20℃ while the lowest can be as low as -140℃. Just like Earth, Sun gives Mars seasons. However, the seasons that Mars experiences are more extreme than Earth’s. For example, when Mars is farthest from Sun, the southern part of Mars experiences a very long and cold winter, about six months on Earth.
Mars lies farther from Sun than Earth does, so the Red Planet has a longer year—687 days compared to 365 for our home world. However, the two planets have similar day lengths, 24 hours and 40 minutes for Mars and 24 hours for Earth.
Mars is far from an easy planet to reach but many countries like the USA, Russia, China and Japan are always trying to send people there. Robots have got the tickets to Mars and it’s believed that Man will get the tickets by the 2030s, although it still remains a big challenge now. And scientists say it will take at least six months for people to travel to Mars.
Mars(火星) is the fourth planet from Sun. It is home to both the highest mountain and the deepest, longest valley(山谷) in the solar system(太阳系). Olympus Mons, the highest mountain on Mars, is about 27 kilometers high, about three times as tall as Qomolangma. And the deepest valley on Mars reaches as deep as 10 kilometers and runs east west for about 4, 000 kilometers, about one fifth of the distance around Mars and close to the width of Australia.
Mars is much colder than Earth because it’s farther away from Sun. The highest temperature can reach 20℃ while the lowest can be as low as -140℃. Just like Earth, Sun gives Mars seasons. However, the seasons that Mars experiences are more extreme than Earth’s. For example, when Mars is farthest from Sun, the southern part of Mars experiences a very long and cold winter, about six months on Earth.
Mars lies farther from Sun than Earth does, so the Red Planet has a longer year—687 days compared to 365 for our home world. However, the two planets have similar day lengths, 24 hours and 40 minutes for Mars and 24 hours for Earth.
Mars is far from an easy planet to reach but many countries like the USA, Russia, China and Japan are always trying to send people there. Robots have got the tickets to Mars and it’s believed that Man will get the tickets by the 2030s, although it still remains a big challenge now. And scientists say it will take at least six months for people to travel to Mars.
26．The height of the highest mountain in the solar system is ________.
A．10 kilometers B．27 kilometers C．800 kilometers D．4, 000 kilometers
27．The underlined word “extreme” in the passage means _________.
A．dangerous B．serious C．unusual D．changeable
28．Mars has a longer year than Earth because _________.
A．Mars lies closer to Sun B．Mars is farther away from Sun
C．Mars lies closer to Earth D．Mars is farther away from Earth
29．We can learn from the last paragraph that ________.
A．no robots have arrived on Mars B．humans have got to Mars
C．it’s a long way to Mars from Earth D．it’s an easy thing to reach Mars
30．This passage is mainly about ________.
A．facts about Mars B．ways to Mars C．opinions on Mars D．mountains on Mars
Mars(火星) is __the fourth___(第四) planet from Sun. It is home to both (两者都）the highest mountain and the deepest, longest valley(山谷) in the solar system(太阳系). Olympus Mons, the highest mountain on Mars, is about 27 kilometers high, about three times as tall as (是珠穆朗玛峰的三倍高)Qomolangma. And the deepest valley on Mars reaches as deep as 10 kilometers and runs （长达） east west for about 4, 000 kilometers, about_one fifth_(五分之一）of the distance around Mars and close to the width of Australia.
Mars is much colder than Earth because it’s farther away from Sun.(火星比地球冷得多，因为它离太阳更远）. The highest temperature can reach 20℃ while （然而）the lowest can be as low as -140℃. Just like Earth, Sun gives Mars seasons.However__(然而）, the seasons that Mars experiences are more extreme than Earth’s. For example, when Mars is farthest from Sun, the southern part of Mars experiences a very long and cold winter, about six months on Earth.
Mars lies farther from Sun than Earth does, so the Red Planet has a longer year—687 days compared to 365 for our home world. However, the two planets have_similar_(相似) day lengths, 24 hours and 40 minutes for Mars and 24 hours for Earth.
Mars is far from an easy planet to reach but many countries like the USA, Russia, China and Japan are always trying to send people there. Robots have got the tickets to Mars (去火星的票)and_it’s believed that (据说)Man will get the tickets by the 2030s (到2030年), although it still remains a big challenge now. And_scientists say it will take at least six months for people to travel to Mars.
And scientists say it will take at least six months for people to travel to Mars.(科学家表示，人们前往火星至少需要六个月的时间)
Mars(火星) is the fourth planet from Sun. It is home to both the highest mountain and the deepest, longest valley(山谷) in the solar system(太阳系). Olympus Mons, the highest mountain on Mars, is about 27 kilometers high, about three times as tall as Qomolangma. And the deepest valley on Mars reaches as deep as 10 kilometers and runs east west for about 4, 000 kilometers, about one fifth of the distance around Mars and close to the width of Australia.
Mars is much colder than Earth because it’s farther away from Sun. The highest temperature can reach 20℃ while the lowest can be as low as -140℃. Just like Earth, Sun gives Mars seasons. However, the seasons that Mars experiences are more extreme than Earth’s. For example, when Mars is farthest from Sun, the southern part of Mars experiences a very long and cold winter, about six months on Earth.
Mars lies farther from Sun than Earth does, so the Red Planet has a longer year—687 days compared to 365 for our home world. However, the two planets have similar day lengths, 24 hours and 40 minutes for Mars and 24 hours for Earth.
Mars is far from an easy planet to reach but many countries like the USA, Russia, China and Japan are always trying to send people there. Robots have got the tickets to Mars and it’s believed that Man will get the tickets by the 2030s, although it still remains a big challenge now. And scientists say it will take at least six months for people to travel to Mars.
Which planet is home to both the highest mountain and the deepest, longest valley(山谷) in the solar system(太阳系).？
_____________________________________________________________________________
Why Mars is much colder than Earth
_____________________________________________________________________________
How many days are there in Mars in one year
_____________________________________________________________________________
Which countries are trying to send people to Mars
_____________________________________________________________________________
When will people get to Mars
_____________________________________________________________________________
教师：1.Mars 2.Because Mars is farther away from Sun.3.687 days 4. the USA, Russia, China and Japan are always trying to send people there.
5.by the 2030sMars(火星) is the fourth planet from Sun. It is home to both the highest mountain and the deepest, longest valley(山谷) in the solar system(太阳系). Olympus Mons, the highest mountain on Mars, is about 27 kilometers high, about three times as tall as Qomolangma. And the deepest valley on Mars reaches as deep as 10 kilometers and runs east west for about 4, 000 kilometers, about one fifth of the distance around Mars and close to the width of Australia.
Mars is much colder than Earth because it’s farther away from Sun. The highest temperature can reach 20℃ while the lowest can be as low as -140℃. Just like Earth, Sun gives Mars seasons. However, the seasons that Mars experiences are more extreme than Earth’s. For example, when Mars is farthest from Sun, the southern part of Mars experiences a very long and cold winter, about six months on Earth.
Mars lies farther from Sun than Earth does, so the Red Planet has a longer year—687 days compared to 365 for our home world. However, the two planets have similar day lengths, 24 hours and 40 minutes for Mars and 24 hours for Earth.
Mars is far from an easy planet to reach but many countries like the USA, Russia, China and Japan are always trying to send people there. Robots have got the tickets to Mars and it’s believed that Man will get the tickets by the 2030s, although it still remains a big challenge now. And scientists say it will take at least six months for people to travel to Mars.
Mars(火星) is the fourth planet from Sun. It is home to both the highest mountain and the deepest, longest valley(山谷) in the solar system(太阳系). Olympus Mons, the highest mountain on Mars, is about 27 kilometers high, about three times as tall as Qomolangma. And the deepest valley on Mars reaches as deep as 10 kilometers and runs east west for about 4, 000 kilometers, about one fifth of the distance around Mars and close to the width of Australia.
Mars is much colder than Earth because it’s farther away from Sun. The highest temperature can reach 20℃ while the lowest can be as low as -140℃. Just like Earth, Sun gives Mars seasons. However, the seasons that Mars experiences are more extreme than Earth’s. For example, when Mars is farthest from Sun, the southern part of Mars experiences a very long and cold winter, about six months on Earth.
Mars lies farther from Sun than Earth does, so the Red Planet has a longer year—687 days compared to 365 for our home world. However, the two planets have similar day lengths, 24 hours and 40 minutes for Mars and 24 hours for Earth.
Mars is far from an easy planet to reach but many countries like the USA, Russia, China and Japan are always trying to send people there. Robots have got the tickets to Mars and it’s believed that Man will get the tickets by the 2030s, although it still remains a big challenge now. And scientists say it will take at least six months for people to travel to Mars.
26．The height of the highest mountain in the solar system is ________.
A．10 kilometers B．27 kilometers C．800 kilometers D．4, 000 kilometers
27．The underlined word “extreme” in the passage means _________.
A．dangerous B．serious C．unusual D．changeable
28．Mars has a longer year than Earth because _________.
A．Mars lies closer to Sun B．Mars is farther away from Sun
C．Mars lies closer to Earth D．Mars is farther away from Earth
29．We can learn from the last paragraph that ________.
A．no robots have arrived on Mars B．humans have got to Mars
C．it’s a long way to Mars from Earth D．it’s an easy thing to reach Mars
30．This passage is mainly about ________.
A．facts about Mars B．ways to Mars C．opinions on Mars D．mountains on Mars
Mars(火星) is _____________(第四) planet from Sun. It is home to ______ (两者都）the highest mountain________ the deepest, longest valley(山谷) in the solar system(太阳系). Olympus Mons, the highest mountain on Mars, is about 27 kilometers high, about_________________________(是珠穆朗玛峰的三倍高)Qomolangma. And the deepest valley on Mars reaches as deep as 10 kilometers and ___________（长达） east west for about 4, 000 kilometers, about___________(五分之一）of the distance around Mars and close to the width of Australia.
__________________________________________________________(火星比地球冷得多，因为它离太阳更远）. The highest temperature can reach 20℃ _________（然而）the lowest can be as low as -140℃. Just like Earth, Sun gives Mars seasons.___________(然而）, the seasons that Mars experiences are more extreme than Earth’s. For example, when Mars is farthest from Sun, the southern part of Mars experiences a very long and cold winter, about six months on Earth.
Mars lies farther from Sun than Earth does, so the Red Planet has a longer year—687 days compared to 365 for our home world. However, the two planets have_________(相似) day lengths, 24 hours and 40 minutes for Mars and 24 hours for Earth.
Mars is far from an easy planet to reach but many countries like the USA, Russia, China and Japan are always trying to send people there. Robots have got__________________(去火星的票)and____________________ (据说)Man will get the tickets _______________(到2030年), although it still remains a big challenge now. And_______________________________________
______________________________________________________________________________(科学家表示，人们前往火星至少需要六个月的时间)
回答问题
Mars(火星) is the fourth planet from Sun. It is home to both the highest mountain and the deepest, longest valley(山谷) in the solar system(太阳系). Olympus Mons, the highest mountain on Mars, is about 27 kilometers high, about three times as tall as Qomolangma. And the deepest valley on Mars reaches as deep as 10 kilometers and runs east west for about 4, 000 kilometers, about one fifth of the distance around Mars and close to the width of Australia.
Mars is much colder than Earth because it’s farther away from Sun. The highest temperature can reach 20℃ while the lowest can be as low as -140℃. Just like Earth, Sun gives Mars seasons. However, the seasons that Mars experiences are more extreme than Earth’s. For example, when Mars is farthest from Sun, the southern part of Mars experiences a very long and cold winter, about six months on Earth.
Mars lies farther from Sun than Earth does, so the Red Planet has a longer year—687 days compared to 365 for our home world. However, the two planets have similar day lengths, 24 hours and 40 minutes for Mars and 24 hours for Earth.
Mars is far from an easy planet to reach but many countries like the USA, Russia, China and Japan are always trying to send people there. Robots have got the tickets to Mars and it’s believed that Man will get the tickets by the 2030s, although it still remains a big challenge now. And scientists say it will take at least six months for people to travel to Mars.
Which planet is home to both the highest mountain and the deepest, longest valley(山谷) in the solar system(太阳系).？
_____________________________________________________________________________
Why Mars is much colder than Earth
_____________________________________________________________________________
How many days are there in Mars in one year
_____________________________________________________________________________
Which countries are trying to send people to Mars
_____________________________________________________________________________
When will people get to Mars
_____________________________________________________________________________
