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One of my favorite things to do is hiking in mountains．Because

nobody likes the idea of getting lost，I always prepare before every

trip．But what’s the best navigation tool，a Global Positioning Sys-

tem(GPS)or a good old map and compass?

  Five of my friends and I hiked through the mountains on a trail

(路線)I marked．One team of three carried a GPS，and the other[來源:Z+xx+k.Com]

team used a map and compass．

    It took the GPS team 3 hours and 1 1 minutes to get through the

whole hike，however，it took the map and compass team only 2

hours and 49 minutes．The biggest problem the GPS team met was

that they lost the satellite signal(衛星信號)in some places．With

no map or compass，they had to walk around until they were in a

place where the signal was good．The map and compass team was

able to spot different landmarks，compare them to their maps and then use the compass to point them in the right direction．

    When I head out on my future hikes，I'm bringing a map，a compass and a GPS to show me the way．

(    ) 1.The two teams____．

    A．had the same navigation tool  B．went along the same trail    C．had the same problem

(    ) 2.The GPS team spent ____ time than the map and compass team in the whole hike．

    A．1ess    B．more    C．the same

(    ) 3.In the end，the writer found out____．

    A．the map and compass were too old navigation tools to use any more

    B．it wasn’t necessary to bring a map and a compass together with a GPS

C．the GPS had some disadvantages in hiking in mountains

One of my favorite things to do is hiking in mountains．Because
nobody likes the idea of getting lost，I always prepare before every
trip．But what’s the best navigation tool，a Global Positioning Sys-
tem(GPS)or a good old map and compass?
Five of my friends and I hiked through the mountains on a trail
(路線)I marked．One team of three carried a GPS，and the other[來源:Z+xx+k.Com]
team used a map and compass．
It took the GPS team 3 hours and 1 1 minutes to get through the
whole hike，however，it took the map and compass team only 2
hours and 49 minutes．The biggest problem the GPS team met was
that they lost the satellite signal(衛星信號)in some places．With
no map or compass，they had to walk around until they were in a
place where the signal was good．The map and compass team was
able to spot different landmarks，compare them to their maps and then use the compass to point them in the right direction．
When I head out on my future hikes，I’m bringing a map，a compass and a GPS to show me the way．
(   )【小題1】The two teams____．
A．had the same navigation tool  B．went along the same trail  C．had the same problem
(    )【小題2】The GPS team spent ____ time than the map and compass team in the whole hike．
A．1ess    B．more    C．the same
(    )【小題3】In the end，the writer found out____．
A．the map and compass were too old navigation tools to use any more
B．it wasn’t necessary to bring a map and a compass together with a GPS
C．the GPS had some disadvantages in hiking in mountains

One of my favorite things to do is hiking in mountains．Because

nobody likes the idea of getting lost，I always prepare before every

trip．But what’s the best navigation tool，a Global Positioning Sys-

tem(GPS)or a good old map and compass?

  Five of my friends and I hiked through the mountains on a trail

(路線)I marked．One team of three carried a GPS，and the other[來源:Z+xx+k.Com]

team used a map and compass．

    It took the GPS team 3 hours and 1 1 minutes to get through the

whole hike，however，it took the map and compass team only 2

hours and 49 minutes．The biggest problem the GPS team met was

that they lost the satellite signal(衛星信號)in some places．With

no map or compass，they had to walk around until they were in a

place where the signal was good．The map and compass team was

able to spot different landmarks，compare them to their maps and then use the compass to point them in the right direction．

    When I head out on my future hikes，I'm bringing a map，a compass and a GPS to show me the way．

(    ) 1.The two teams____．

    A．had the same navigation tool  B．went along the same trail    C．had the same problem

(    ) 2.The GPS team spent ____ time than the map and compass team in the whole hike．

    A．1ess    B．more    C．the same

(    ) 3.In the end，the writer found out____．

    A．the map and compass were too old navigation tools to use any more

    B．it wasn’t necessary to bring a map and a compass together with a GPS

C．the GPS had some disadvantages in hiking in mountains

The word “day”has two meanings．When we talk about the number of days in a year，we are using“day”to mean 24 hours．But when we talk about day and night，we are using“day”to mean the time between sunrise and sunset．Since the earth looks like a ball，the sun can shine on only half of it at a time．Always one half of the earth is having day and the other half night．A place is moved from day into night and from night into day over and over by the spinning(旋轉)of the earth．At the equator(赤道)day and night are sometimes the same length(長度)．They are each twelve hours long．The sun rises at 6o'clock in the morning and sets at 6o'clock in the evening．

    For six months，the North pole is tilted(傾斜)toward the sun．In those months，the Northern Hemisphere(半球)gets more hours of sunlight than the Southern Hemisphere．Days are longer than nights．South of the equator nights are longer than days．For the other six months the North Pole is tilted away from the sun．Then the Southern Hemisphere gets more sunlight．Days are longer than nights．North of the equator nights are longer than days．Winter is the season of long nights．Summer is the season of long days．

1．When the Western Hemisphere is having day，the Eastern Hemisphere is having   

   A．both day and night          B．day    

   C．neither day nor night        D．night

2．A place is moved from day into night and from night into day over and over by      of the earth．

   A．the pushing                B．the pulling

   C．the spinning                D．the passing

3．At the equator day is as long as night     ．

   A．sometimes                 B．never

C．winter                     D．summer

4．When the North Pole is titled toward the sun，the Northern Hemisphere gets       sunlight．

   A．1ess         B．more       C．all       D．no

5．When it is winter in China     

A．the USA is tilted toward the sun

B．the South Pole is tilted away from the sun

C．the North Pole is tilted toward the sun

D．the North Pole is tilted away from the sun．