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. 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 t han 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 ______ su nlight.

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

Would you like to adopt(收养) an animal? Although this sounds very unusual, some children have done just this. The Natural Zoo has given people the chance to adopt animals by paying for all of its food for one year. One of the animals that needed parents was a young tiger named Brocky. The people at the zoo said that it would cost about $900 a year for the food for Brocky.

Not many boys and girls have $900 to spend. That is why several hundred children and grown-ups(成年人) each have sent a little money to the zoo to help pay for Brocky’s food. Some children sent in only a quarter because that was all the money they had. Other children sent in more money than that.

Since so many people sent money to the zoo to help pay for Brocky’s food, he now will be able to eat as much as he wants. Brocky surely must be a happy tiger to know that he has so many adopted parents. Many children must also be happy to know that they have helped to feed him. It really will be thrilling(令人兴奋的) for those children to go to the Natural Zoo to visit their adopted tiger Brocky.

1.Brocky is________.

A. an animal zoo

B. an adopted child

C. a tiger without children’s love

D. a tiger in need of adoption

2.Several hundred people give money to the zoo to help Brocky because ________.

A. its food is too expensive for one person to afford

B. people don’t want to spend too much money on Brocky

C. people don’t love Brocky enough

D. the zoo forces them to do so

3.Children will be ________ if they go to the zoo to visit the tiger Brocky.

A. frightened B. excited and happy

C. nervous D. surprised

4.With so many people’s money, Brocky now can _________.

A. play with many toys

B. live without being hungry

C. eat meat every day

D. have an air-conditioned room to live in

5.We can infer(推断)from the passage that ________.

A. zoos are too poor to feed the animals

B. there are too many animals in the zoo

C. many people are kind to animals

D. children love animals better than adults do

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