B3 Daniel is telling Simon about the article. Simon is very interested and is asking many questions. Help Daniel answer Simon's questions. Circle the correct letters.
1 Why would people move to Mars?
a The Earth is crowded and polluted.
b People want to make friends with those from another planet.
c Flying to Mars would be fun.
2 How long does it take to fly to Mars at present?
a Hours.
b Months.
c Years.
3 What would the flight to Mars be like by the year 2100?
a Fast and uncomfortable.
b Fast but comfortable.
c Slow but comfortable.
4 What would food on Mars be like?
a Very tasty.
b Very sweet.
c Not very tasty.
5 Would gravity be a problem on Mars?
a No, it's not a problem.
b Yes. Many people would get lost.
c Yes, and people would wear special boots.
6 Where might people live on Mars?
a In houses with huge rooms.
b On spacecraft.
c In sleeping bags.
7 What would schools be like on Mars?
a Very small.
b Online schools.
c Like those on the Earth.
8 What does the writer think of life on Mars?
a Better than life on the Earth.
b Worse than life on the Earth.
c There would be good and bad points.
1 Why would people move to Mars?
a The Earth is crowded and polluted.
b People want to make friends with those from another planet.
c Flying to Mars would be fun.
2 How long does it take to fly to Mars at present?
a Hours.
b Months.
c Years.
3 What would the flight to Mars be like by the year 2100?
a Fast and uncomfortable.
b Fast but comfortable.
c Slow but comfortable.
4 What would food on Mars be like?
a Very tasty.
b Very sweet.
c Not very tasty.
5 Would gravity be a problem on Mars?
a No, it's not a problem.
b Yes. Many people would get lost.
c Yes, and people would wear special boots.
6 Where might people live on Mars?
a In houses with huge rooms.
b On spacecraft.
c In sleeping bags.
7 What would schools be like on Mars?
a Very small.
b Online schools.
c Like those on the Earth.
8 What does the writer think of life on Mars?
a Better than life on the Earth.
b Worse than life on the Earth.
c There would be good and bad points.
答案：1 a
解析：通常人们考虑移居其他星球的原因包括地球拥挤和污染等问题，a选项符合常理，所以选a。
2 c
解析：目前飞往火星的时间较长，需要数年，选c。
3 b
解析：到2100年，飞行技术可能会发展，飞行速度会变快且更舒适，选b。
4 c
解析：根据文章内容，火星上的食物可能不如地球上的美味，选c。
5 c
解析：火星重力小是个问题，人们需要穿特殊的靴子，选c。
6 a
解析：人们可能住在有大房间的房子里，选a。
7 b
解析：火星上的学校可能是在线学校，选b。
8 c
解析：作者认为火星生活既有挑战性又有趣，即有好有坏，选c。
解析：通常人们考虑移居其他星球的原因包括地球拥挤和污染等问题，a选项符合常理，所以选a。
2 c
解析：目前飞往火星的时间较长，需要数年，选c。
3 b
解析：到2100年，飞行技术可能会发展，飞行速度会变快且更舒适，选b。
4 c
解析：根据文章内容，火星上的食物可能不如地球上的美味，选c。
5 c
解析：火星重力小是个问题，人们需要穿特殊的靴子，选c。
6 a
解析：人们可能住在有大房间的房子里，选a。
7 b
解析：火星上的学校可能是在线学校，选b。
8 c
解析：作者认为火星生活既有挑战性又有趣，即有好有坏，选c。
B4 Daniel is making a list of the differences between life on the Earth today and life on Mars in 2100. Help him complete his list. Use the information from the article on pages 52 and 53.
答案：Life on the Earth today
It is polluted and crowded.
Spacecraft are slow.
There is enough water and oxygen.
There are many kinds of tasty food.
Gravity is not a problem.
Many people live in small flats.
People have little time to relax.
Students study at real schools.
Life on Mars in 2100
It would be clean and have lots of space.
Spacecraft travels at the speed of light.
Nobody knows whether there would be enough water or oxygen.
Food would not be so tasty.
Only about three-eighths of the gravity we have there.
People might live in houses with huge comfortable rooms.
People have more time to relax.
Students would study at online schools with "e-teachers".
It is polluted and crowded.
Spacecraft are slow.
There is enough water and oxygen.
There are many kinds of tasty food.
Gravity is not a problem.
Many people live in small flats.
People have little time to relax.
Students study at real schools.
Life on Mars in 2100
It would be clean and have lots of space.
Spacecraft travels at the speed of light.
Nobody knows whether there would be enough water or oxygen.
Food would not be so tasty.
Only about three-eighths of the gravity we have there.
People might live in houses with huge comfortable rooms.
People have more time to relax.
Students would study at online schools with "e-teachers".