阅读理解

　　If you travel by air across the centre of Africa or south.

　　America, you fly over forests for thousands of kilometres. These great forests are the oceans of trees. There are full of thousands and thousands of different kinds of plants and animals.

　　However, the worlds forests are getting smaller all the time. We are cutting down the trees because we need wood, and we need more farm land. Some people say that there will not be any forests like these in 20 or 30 years. What will happen if they disappear?

　　If we cut down our forests, a lot of plants and animals will disappear from the world. In a lot of places the new farm land will soon look like the old deserts. Crops will not grow there. It will not rain very often, and the weather will get very hot. Perhaps the climate of the world will change. This will be dangerous for everyone in the world. That is why we must take care of our forests.

1．The passage mainly tells us about ________.

[　　]

A．the importance of taking care of our plants

B．the result of cutting down the trees

C．the locations of great forests

D．the reasons for forming the deserts

2．Which of the following is true according to the passage?

[　　]

A．Africa and South America are the oceans of trees.

B．Forests are homes for different kinds of animals.

C．Forests are usually several square kilometres large.

D．Different plants can’t be found in the same forest.

3．The need for more wood and more land results in ________.

[　　]

A．the change of the world climate

B．the disappearance of many plants and animals

C．more deserts and less farm land

D．all of the above

4．What will happen in 20 or 30 years in some people’s view?

[　　]

A．We’ll have more and greater forests.

B．We’ll have enough land to support our people.

C．We’ll have no forests like those in the centre of Africa.

D．We’ll have enough wood to do some cooking.

5．The writer thinks ________.

[　　]

A．it dangerous for everyone to cut down the forests

B．it necessary for everyone to protect the forests

C．it impossible for everyone to take care of the world

D．it important for everyone to keep animals

阅读下面短文，掌握其大意，然后从下列各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

Strange things happen to time when you travel. __11___the earth is divided into24 time zones, one hour apart, you can have days with __12___ or fewer than 24 hours, and weeks with more or fewer than seven days.

If you __13___ a five-day trip across the Atlantic Ocean, your __14___ enters a different time zone every __15___. As you enter each zone, the time __16___ one hour. Traveling west, you set your clock back; traveling east, you set it __17___. Each day of your trip has __18___ 25 or 23 hours.

??If you travel by ship across the Pacific, you ___19___ the international date line. By agreement, this is the point __20___ a new day begins. __21___ you cross the line, you change your __22___ one full day, backward __23____ forward. Traveling east, today __24___ yesterday; traveling west, __25___ is tomorrow!

   A. Because      B. If        C. Although     D. When

   A. much        B. more     C. many        D. less

   A. do          B. make      C. go          D. travel

   A. plane        B. train      C. car          D. ship

   A. day         B. night      C. hour         D. time

  A. goes        B. changes    C. shows       D. adds

   A. ahead       B. upward    C. backward     D. fast

   A. neither      B. either      C. both         D. nor

 A. travel       B. trip        C. cover        D. cross

   A. which       B. what       C. that         D. where

A. When       B. Where     C. While       D. Before

   A. time        B. calendar    C. date         D. hour

  A. and         B. or         C. but         D. still

   A. changes     B. makes      C. becomes     D. goes

   A. which       B. this        C. that         D. it

Time Zones（时区）
Strange things happen to time when you travel. Because the earth is divided into twenty-four zones one hour apart（相差）.You can have days with more or fewer than twenty-four hours, and weeks more or fewer than seven days.
If you make a five-day trip across the Atlantic Ocean(大西洋)，your ship enters a different time zone every day. As you enter each zone, the time changes one hour. Travelling west ,you set your clock back; traveling east , you set it ahead. Each day of your trip has either twenty-five or twenty-three hours.
If you travel by ship across the Pacific（太平洋）, you cross the international date line. By agreement, this is the point where a new day begins, when you cross the line, you change your calendar one full time day, backward or forward. Travelling east, today becomes yesterday; traveling west, it is tomorrow.
【小题1】Strange things happen to time when you travel because______.

Time Zones（时区）

Strange things happen to time when you travel. Because the earth is divided into twenty-four zones one hour apart（相差）.You can have days with more or fewer than twenty-four hours, and weeks more or fewer than seven days.

If you make a five-day trip across the Atlantic Ocean(大西洋)，your ship enters a different time zone every day. As you enter each zone, the time changes one hour. Travelling west ,you set your clock back; traveling east , you set it ahead. Each day of your trip has either twenty-five or twenty-three hours.

If you travel by ship across the Pacific（太平洋）, you cross the international date line. By agreement, this is the point where a new day begins, when you cross the line, you change your calendar one full time day, backward or forward. Travelling east, today becomes yesterday; traveling west, it is tomorrow.

1.Strange things happen to time when you travel because______.

A．no day really has 24 hours                B．the earth is divided into time zones

C．time zones are not all the same size          D．no one knows where time zones are

2.From this passage it seems true that the Atlantic Ocean___.

A．is divided into five time zones              B．is divided into 24 time zones

C．is in one time zone                      D．cannot be crossed in five days

3.If you cross the ocean going west, you set your clock_____.

A．ahead by 25 hours in a new time zone       B．one hour ahead for the whole trip

C．back one full day for each time zone         D．one hour back in each new time zone

4.The international date line is the name for______.

A．the beginning of any new time zone         B．the point where a new day ends

C．the point where a new day begins           D．any time zone in the Pacific Ocean

阅读下面短文，掌握其大意，然后从下列各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
Strange things happen to time when you travel. __11___the earth is divided into24 time zones, one hour apart, you can have days with __12___ or fewer than 24 hours, and weeks with more or fewer than seven days.
If you __13___ a five-day trip across the Atlantic Ocean, your __14___ enters a different time zone every __15___. As you enter each zone, the time __16___ one hour. Traveling west, you set your clock back; traveling east, you set it __17___. Each day of your trip has __18___ 25 or 23 hours.
­If you travel by ship across the Pacific, you ___19___ the internationaldate line. By agreement, this is the point __20___ a new day begins. __21___ you cross the line, you change your __22___ one full day, backward __23____ forward. Traveling east, today __24___ yesterday; traveling west, __25___ is tomorrow!
【小题1】

第三节：完形填空（共15小题；每小题1分，满分15分）

阅读下面短文，掌握其大意，然后从51～65题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。

Strange things happen to time when you travel. __51___the earth is divided into 24 time zones, one hour apart, you can have days with __52___ or fewer than 24 hours, and  weeks with more or fewer than seven days.

If you __53___ a five-day trip across the Atlantic Ocean, your __54___ enters a different time zone every __55___. As you enter each zone, the time __56___ one hour. Traveling west, you set your clock back;  traveling east, you set it __57___. Each day of your trip has __58___ 25 or 23 hours.

­If you travel by ship across the Pacific, you ___59___ the international date line. By agreement, this is the point _60___ a new day begins. __61___ you cross the line, you change your __62___ one full day, backward __63____ forward. Traveling east, today __64___ yesterday; traveling west, __65___ is tomorrow!

51.   A. Because      B. If        C. Although     D. When

52.   A. much        B. more     C. many        D. less

53.   A. do          B. make      C. go          D. travel

54.   A. plane        B. train      C. car         D. ship

55.   A. day         B. night      C. hour        D. time

56.   A. goes        B. changes    C. shows       D. adds

57.   A. ahead       B. upward    C. backward     D. fast

58.   A. neither      B. either      C. both         D. nor

  59.A. travel       B. trip        C. cover        D. cross

  60.A. which      B. what      C. that         D. where

  61.A. When      B. Where     C. While       D. Before

  62.A. time       B. calendar    C. date        D. hour

  63.A. and        B. or         C. but         D. still

  64.A. changes     B. makes     C. becomes    D. goes

  65.A. which       B. this       C. that        D. it

阅读下面短文，掌握其大意，然后从下列各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

Strange things happen to time when you travel. __11___the earth is divided into24 time zones, one hour apart, you can have days with __12___ or fewer than 24 hours, and weeks with more or fewer than seven days.

If you __13___ a five-day trip across the Atlantic Ocean, your __14___ enters a different time zone every __15___. As you enter each zone, the time __16___ one hour. Traveling west, you set your clock back; traveling east, you set it __17___. Each day of your trip has __18___ 25 or 23 hours.

­If you travel by ship across the Pacific, you ___19___ the international date line. By agreement, this is the point __20___ a new day begins. __21___ you cross the line, you change your __22___ one full day, backward __23____ forward. Traveling east, today __24___ yesterday; traveling west, __25___ is tomorrow!

1.

   A. Because      B. If        C. Although     D. When

2.

   A. much        B. more     C. many        D. less

3.

   A. do          B. make      C. go          D. travel

4.

   A. plane        B. train      C. car          D. ship

5.

   A. day         B. night      C. hour         D. time

6.

  A. goes        B. changes    C. shows       D. adds

7.

   A. ahead       B. upward    C. backward     D. fast

8.

   A. neither      B. either      C. both         D. nor

9.

 A. travel       B. trip        C. cover        D. cross

10.

   A. which       B. what       C. that         D. where

11.

A. When       B. Where     C. While       D. Before

12.

   A. time        B. calendar    C. date         D. hour

13.

  A. and         B. or         C. but         D. still

14.

   A. changes     B. makes      C. becomes     D. goes

15.

   A. which       B. this        C. that         D. it

第三节：完形填空（共15小题；每小题1分，满分15分）
阅读下面短文，掌握其大意，然后从51～65题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
Strange things happen to time when you travel. __51___the earth is divided into 24 time zones, one hour apart, you can have days with __52___ or fewer than 24 hours, and  weeks with more or fewer than seven days.
If you __53___ a five-day trip across the Atlantic Ocean, your __54___ enters a different time zone every __55___. As you enter each zone, the time __56___ one hour. Traveling west, you set your clock back;  traveling east, you set it __57___. Each day of your trip has __58___ 25 or 23 hours.
­If you travel by ship across the Pacific, you ___59___ the international date line. By agreement, this is the point _60___ a new day begins. __61___ you cross the line, you change your __62___ one full day, backward __63____ forward. Traveling east, today __64___ yesterday; traveling west, __65___ is tomorrow!
51.   A. Because      B. If        C. Although     D. When
52.   A. much        B. more     C. many        D. less
53.   A. do          B. make      C. go          D. travel
54.   A. plane        B. train      C. car         D. ship
55.   A. day         B. night      C. hour        D. time
56.   A. goes        B. changes    C. shows       D. adds
57.   A. ahead       B. upward    C. backward     D. fast
58.   A. neither      B. either      C. both        D. nor
59.A. travel       B. trip        C. cover        D. cross
60.A. which      B. what      C. that         D. where
61.A. When      B. Where     C. While       D. Before
62.A. time       B. calendar    C. date        D. hour
63.A. and       B. or         C. but         D. still
64.A. changes     B. makes     C. becomes    D. goes
65.A. which       B. this       C. that        D. it

阅读下列短文，从所给的四个选项中，选出最佳答案

　Strange things happen to time now and then when you travel, because the earth is divided into twenty-four time zones (areas) one hour apart (相隔). You can have days with more or fewer than twenty-four hours, and weeks with more or fewer than seven days.

　If you make a five-day trip across the Atlantic Ocean(大西洋), your ship enters a different time zone every day. As you enter each zone, the time changes one hour. Travelling west, you set your clock back; travelling east, you set it ahead. Each day of your trip has either twenty-five or twenty-three hours.

　If you travel by ship across the Pacific（太平洋）, you cross the international（国际的）date line. By agreement（协议）, this is the point where a new day begins. When you cross the line, you change your calendar（日历） one full day, backward or forward. Travelling east, today becomes yesterday; travelling west, it is tomorrow!

1． Which of the following should be chosen as the title of this passage? 

[　　]

A．Different Times　　　B．Twenty-four Hours

C．Time Zones　　　　 D．The Changing Time

2． What does the word “divide” mean? It means “______”.

[　　]

A．to break something up into parts

B．to break into one's house

C．to hit something so that it's in pieces

D．to hit somebody in the face

3． What's the difference in time between zones?　　　

[　　]

A．Twenty-four hours.　　　B．Seven days.

C．Twenty-five hours.　　　D．One hour.

If you make a five-day trip across the Atlantic Ocean, your ship enters a different zone and time changes one hour. Traveling west, you set your clock back; traveling east, you set it ahead. Each day of your trip iseither twenty-five or twenty-three hours.

If you travel by ship across the Pacific, you cross the International Date Line. By agreement, this is the point where a new day begins. When you cross the line, you change your calendar(日历) the full day, backward or forward. Traveling east, today becomes yesterday; traveling west, it is tomorrow!

1. The best title for this selection is_______.

A. A Trip Across the Atlantic

B. How Time Changes around the World

C. Crossing the International Date Line

D. How Time Zones Were Set Up

2. The International Date Line is the name for_______.

A. the beginning of any new time zone

B. the point where time changes by one hour

C. the point where a new day begins

D. any time zone in the Pacific Ocean

3. If you cross the ocean going east, you set your clock_______.

A. ahead one hour in each new time zone

B. ahead one time for the whole trip

C. back one full day for each one full day

D. ahead by twenty-three hours

Strange thing happens when you travel. Because the earth is divided into twenty-four time zones one hour apart. You can have days with more or fewer than twenty-four hours, and weeks with more or fewer than seven days.

If you make a five-day trip across the Atlantic Ocean, your ship enters a different zone and time changes one hour. Traveling west, you set your clock back; traveling east, you set it ahead. Each day of your trip iseither twenty-five or twenty-three hours.

If you travel by ship across the Pacific, you cross the International Date Line. By agreement, this is the point where a new day begins. When you cross the line, you change your calendar(日历) the full day, backward or forward. Traveling east, today becomes yesterday; traveling west, it is tomorrow!

1. The best title for this selection is_______.

A. A Trip Across the Atlantic

B. How Time Changes around the World

C. Crossing the International Date Line

D. How Time Zones Were Set Up

2. The International Date Line is the name for_______.

A. the beginning of any new time zone

B. the point where time changes by one hour

C. the point where a new day begins

D. any time zone in the Pacific Ocean

3. If you cross the ocean going east, you set your clock_______.

A. ahead one hour in each new time zone

B. ahead one time for the whole trip

C. back one full day for each one full day

D. ahead by twenty-three hours

阅读理解

阅读下列短文，从每题所给的四个选项(A，B，C和D)中，选出最佳选项．

　　Strange things happen to time when you travel, because earth is divided into twenty-four areas, one hour apart. You can have days with more or fewer than twenty-four hours, and weeks more or fewer than seven days.

　　If you make a five-day trip across the Atlantic Ocean, your ship enters a different time area every day. As you enter each area, the time changes one hour: traveling west, you set your clock back, traveling east, you set it ahead. Each day of your trip has either twenty-five or twenty-three hours.

　　If you travel by ship across the Pacific, you cross the International Date Line. By arrangement (依协议), this is the point where a new day begins. When you cross the line, you change your calendar one full day, backward or forward. Traveling east, today becomes yesterday. Traveling west, it is tomorrow.

1．Strange things happen to time when you travel because ________.

A．no day really has twenty-four hours

B．the earth is divided into time areas

C．time areas are not at all the same size

D．no one knows where time areas begin

2．It seems true that the Atlantic Ocean ________.

[　　]

A．is in one time area

B．is divided into twenty-four areas

C．is divided into five time areas

D．can not be crossed in five days

3．If you cross the ocean going east, you set your clock ________.

[　　]

A．one hour ahead in each new time area

B．one hour ahead for the whole trip

C．one full day back for each time area

D．ahead by twenty-three hours

4．The International Date Line is the name for ________.

[　　]

A．the beginning of any new time area

B．any point where time changes by one hour

C．the point where a new day begins

D．any time area in the Pacific Ocean

阅读理解

　　Strange thing happen to time when your travel around the world. The earth is divided into twenty-four zones (时区) one hour apart. You can have days with more or fewer than twenty-four hours and weeks with more or fewer than seven days.

　　If you make a five-day trip across the Atlantic Ocean, your ship enters a different time zone every day. As you enter each zone, the time changes one hour. Traveling west, you set your clock back; travelling east, you set it ahead. Each day of your trip has either twenty-five or twenty-three hours.

　　If you travel by ship across the Pacific, you cross the international date line. By agreement, this is the point where a new day begins. When you cross the line, you change your calendar (日历) one full day, backward or forward. Travelling east, today becomes yesterday; travelling west, it is tomorrow.

1．Strange things happen to rime when you travel because ________ .

[　　]

A．a day is really divided into twenty－four hours

B．the earth is separated into time zones

C．time zones are all the same size

D．you have to set one hour aside

2．In this passage, the writer wants to tell us ________ .

[　　]

A．how to cross the international date line

B．how to make a voyage by ship

C．how to divide the rime zones

D．how to change time backward or forward

3．From this passage, it seems true that the Atlantic Ocean ________ .

[　　]

A．is in one time zone

B．is divided into twenty-four zones

C．is divided into five time zones

D．cannot be crossed in five days

4．According to the passage, if you cross the Pacific from China to American, you set your clock ________ .

[　　]

A．ahead one hour in each new time zone

B．ahead one hour for the whole trip

C．back one day for the whole trip

D．ahead by twenty-three hours

5．(Refer to the map) Suppose you start at 11: 00 A．m. Wednesday from Midway to Wake by plane. The trip takes one hour and a half. About what time is it in Wake when you arrive?

[　　]

A．Wednesday afternoon

B．Wednesday morning

C．Thursday morning

D．Tuesday afternoon

Strange things happen to time when you travel. 1the earth is divided into 24 time zones, one hour apart, you can have days with 2 or fewer than 24 hours, and weeks with more or fewer than seven days.
If you 3 a five-day trip across the Atlantic Ocean, your 4 enters a different time zone every 5. As you enter each zone, the time 6 one hour. Traveling west, you set your clock back; traveling east, you set it 7. Each day of your trip has 8 25 or 23 hours.
­If you travel by ship across the Pacific, you 9 the international date line. By agreement, this is the point 10 a new day begins. 11 you cross the line, you change your 12 one full day, backward 13 forward. Traveling east, today 14 yesterday; traveling west, 15 is tomorrow!

1. 1.
   1. A.
      Because
   2. B.
      If
   3. C.
      Although
   4. D.
      When
2. 2.
   1. A.
      much
   2. B.
      more
   3. C.
      many
   4. D.
      less
3. 3.
   1. A.
      do
   2. B.
      make
   3. C.
      go
   4. D.
      travel
4. 4.
   1. A.
      plane
   2. B.
      train
   3. C.
      car
   4. D.
      ship
5. 5.
   1. A.
      day
   2. B.
      night
   3. C.
      hour
   4. D.
      time
6. 6.
   1. A.
      goes
   2. B.
      changes
   3. C.
      shows
   4. D.
      adds
7. 7.
   1. A.
      ahead
   2. B.
      upward
   3. C.
      backward
   4. D.
      fast
8. 8.
   1. A.
      neither
   2. B.
      either
   3. C.
      both
   4. D.
      nor
9. 9.
   1. A.
      travel
   2. B.
      trip
   3. C.
      cover
   4. D.
      cross
10. 10.
    1. A.
       which
    2. B.
       what
    3. C.
       that
    4. D.
       where
11. 11.
    1. A.
       When
    2. B.
       Where
    3. C.
       While
    4. D.
       Before
12. 12.
    1. A.
       time
    2. B.
       calendar
    3. C.
       date
    4. D.
       hour
13. 13.
    1. A.
       and
    2. B.
       or
    3. C.
       but
    4. D.
       still
14. 14.
    1. A.
       changes
    2. B.
       makes
    3. C.
       becomes
    4. D.
       goes
15. 15.
    1. A.
       which
    2. B.
       this
    3. C.
       that
    4. D.
       it

Strange things happen to time when you travel because the earth is divided into twenty-four zones(时区), one hour apart. You can have days with more or fewer than twenty-fours, and weeks with more or fewer than seven days.

If you make a five-day trip across the Atlantic Ocean, your ship enters a different time zone every day. As you enter each zone, the time changes one hour. Traveling west, you set your clock back, traveling east, you set it ahead. Each day of your trip has either twenty-five or twenty-three hours.

If you travel by ship across the Pacific Ocean, you cross the International Date Line (国际日期变更线 ). By agreement, this is the point where a new day begins. When you cross the line, you change your calendar one full day, backward or forward. Traveling east today becomes yesterday. Traveling west, it is tomorrow.

1. Strange things happen to time when you travel because _____.

A. no day really has twenty-four hours 　　　 B. no one knows where time zones begin

C. the earth is divided into time zones　　　 D. in some places one day always has twenty-five hours.

2. The difference in time between zones is _____.

   　　 　 A. one hour   　 B. more than seven days C. seven days    　 D. twenty-four hours

3. The International Date Line is the name for “_____”.

   　　 A. the beginning of any new time zone　　

B. any point where time changes by one hour

   　　 C. the point where a new day begins 　 　

D. the end of any new time zone

Time Zones（时区）
Strange things happen to time when you travel. Because the earth is divided into twenty-four zones one hour apart（相差）.You can have days with more or fewer than twenty-four hours, and weeks more or fewer than seven days.
If you make a five-day trip across the Atlantic Ocean(大西洋)，your ship enters a different time zone every day. As you enter each zone, the time changes one hour. Travelling west ,you set your clock back; traveling east , you set it ahead. Each day of your trip has either twenty-five or twenty-three hours.
If you travel by ship across the Pacific（太平洋）, you cross the international date line. By agreement, this is the point where a new day begins, when you cross the line, you change your calendar one full time day, backward or forward. Travelling east, today becomes yesterday; traveling west, it is tomorrow

1. 1.

   Strange things happen to time when you travel because______.

   1. A.
      no day really has 24 hours
   2. B.
      the earth is divided into time zones
   3. C.
      time zones are not all the same size
   4. D.
      no one knows where time zones are
2. 2.

   From this passage it seems true that the Atlantic Ocean______.

   1. A.
      is divided into five time zones
   2. B.
      is divided into 24 time zones
   3. C.
      is in one time zone
   4. D.
      cannot be crossed in five days
3. 3.

   If you cross the ocean going west, you set your clock______.

   1. A.
      ahead by 25 hours in a new time zone
   2. B.
      one hour ahead for the whole trip
   3. C.
      back one full day for each time zone
   4. D.
      one hour back in each new time zone
4. 4.

   The international date line is the name for______.

   1. A.
      the beginning of any new time zone
   2. B.
      the point where a new day ends
   3. C.
      the point where a new day begins
   4. D.
      any time zone in the Pacific Ocean

第三节：完形填空（共15小题；每小题1分，满分15分）

阅读下面短文，掌握其大意，然后从51～65题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。

Strange things happen to time when you travel. __51___the earth is divided into 24 time zones, one hour apart, you can have days with __52___ or fewer than 24 hours, and  weeks with more or fewer than seven days.

If you __53___ a five-day trip across the Atlantic Ocean, your __54___ enters a different time zone every __55___. As you enter each zone, the time __56___ one hour. Traveling west, you set your clock back;  traveling east, you set it __57___. Each day of your trip has __58___ 25 or 23 hours.

??If you travel by ship across the Pacific, you ___59___ the international date line. By agreement, this is the point _60___ a new day begins. __61___ you cross the line, you change your __62___ one full day, backward __63____ forward. Traveling east, today __64___ yesterday; traveling west, __65___ is tomorrow!

51.   A. Because      B. If        C. Although     D. When

52.   A. much        B. more     C. many        D. less

53.   A. do          B. make      C. go          D. travel

54.   A. plane        B. train      C. car         D. ship

55.   A. day         B. night      C. hour        D. time

56.   A. goes        B. changes    C. shows       D. adds

57.   A. ahead       B. upward    C. backward     D. fast

58.   A. neither      B. either      C. both         D. nor

  59.A. travel       B. trip        C. cover        D. cross

  60.A. which      B. what      C. that         D. where

  61.A. When      B. Where     C. While       D. Before

  62.A. time       B. calendar    C. date        D. hour

  63.A. and        B. or         C. but         D. still

  64.A. changes     B. makes     C. becomes    D. goes

  65.A. which       B. this       C. that        D. it

Strange things happen when you travel, because the earth is divided into twenty-four zones. The time difference between two zones is one hour. You can have days with more than twenty-four hours and days with fewer than twenty- four hours. You can have weeks with more than seven days and weeks with fewer than seven days.
If you make a five-trip across the Atlantic Ocean , your ship come into a different time zone every day. As you come into each zone, the time changes one hour. If you travel west, you set your watch back. If you travel east, you set it ahead. Each day of your trip has either twenty-five or twenty-three hours.
If you make a trip by ship across the Pacific Ocean , you cross the International Date Line. This is the point where a new day begins when you cross the line, you change one full day. If you travel east, today becomes yesterday, if you travel west it is tomorrow.
【小题1】Something interesting will happen to the time if you travel because        .