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（旋转）of the earth. At the equator（赤道）day and night are sometimes the same length（长度）. They are each twelve hours long. The sun rises at 6 o’clock in the morning and sets at 6 o’clock in the evening. For six months the North Pole is tilted（倾斜）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. usually　　　　D. always

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

　　A. less　　　　　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

Most Canadian families love to have holidays 1 summer． Summer is a good season 2 holidays． It is very hot during the months of July and August． Children do not have any classes during these3months．

Some 4 like to stay at home during the holiday． They work in the garden, visit friends, 5 books, or 6 TV． Many families 7 their lunch to a park or somewhere far 8the city． They like to eat where there are many trees or there is a nice lake． If they live near the sea, they often go to the beach． They can fish, swim or enjoy the sun there．

Canada is a large country． Many families travel by 9 or by train to see interesting places． They also travel by plane to a foreign country． Many big cities have many famous buildings, theatres, shops and other places 10travelers．

1.A． for     　　　　　　 B． in      　　　　　　 C． on

2. A． to      　　　　　　 B． of      　　　　　　 C． for

3. A． one      　　　　　　B． two    　　　　　　 C． three

4. A． people   　　　　　　B． peoples  　　　　　　C． man

5.A． see   　　　　　　　 B． watch   　　　　　　C． read

6. A． see    　　　　　　  B． watch   　　　　　　C． look

7. A． takes  　　　　　　  B． take   　　　　　　  C． look

8. A． from   　　　　　　 B． away   　　　　　 C． to

9. A． car      　　　　　　B． a car   　　　　　 C． their car

10. A． for      　　　　　　B． in       　　　　　C． on

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（旋转）of the earth. At the equator（赤道）day and night are sometimes the same length（长度）. They are each twelve hours long. The sun rises at 6 o’clock in the morning and sets at 6 o’clock in the evening. For six months the North Pole is tilted（倾斜）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. usually　　　 　 D. always

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

A. less　　　　　 B. more　　　　 C. all　　　　　　 D. no