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五、信息还原。〔人与自然——自然现象〕
Everybody knows that there are usually four seasons in a year. 1. ______

As our planet moves around the sun,the light from the sun falls on the earth from different directions. This helps create the seasons. At different times of year,there is more sunlight in some places and less sunlight in others. More sunlight means longer days and warmer weather. 2. ______ It gets colder in autumn and winter because the days are shorter,and we get less light from the sun.
The seasons fall at different times of year around the world. For example,China is to the north of the equator(赤道). Here,we experience summer from June to August. 3. ______ In Australia,it is summer from December to February,and Australians have their spring when we have our autumn.
4. ______ The hottest and the coldest parts of the world usually have only two seasons. It is always hot in places close to the equator. These places are called the tropics(热带地区). Instead of our four seasons,many parts of the tropics have a rainy season and a dry season. 5. ______
A. This is why we have spring and summer.
B. This is because spring and summer are long.
C. But do you know the colours of the four seasons?
D. People will never experience winter in these areas.
E. But do you know how the four seasons are formed?
F. Not all places in the world have four seasons.
G. To the south of the equator,June,July and August are winter months.
Everybody knows that there are usually four seasons in a year. 1. ______
As our planet moves around the sun,the light from the sun falls on the earth from different directions. This helps create the seasons. At different times of year,there is more sunlight in some places and less sunlight in others. More sunlight means longer days and warmer weather. 2. ______ It gets colder in autumn and winter because the days are shorter,and we get less light from the sun.
The seasons fall at different times of year around the world. For example,China is to the north of the equator(赤道). Here,we experience summer from June to August. 3. ______ In Australia,it is summer from December to February,and Australians have their spring when we have our autumn.
4. ______ The hottest and the coldest parts of the world usually have only two seasons. It is always hot in places close to the equator. These places are called the tropics(热带地区). Instead of our four seasons,many parts of the tropics have a rainy season and a dry season. 5. ______
A. This is why we have spring and summer.
B. This is because spring and summer are long.
C. But do you know the colours of the four seasons?
D. People will never experience winter in these areas.
E. But do you know how the four seasons are formed?
F. Not all places in the world have four seasons.
G. To the south of the equator,June,July and August are winter months.
答案:
1.E 2.A 3.G 4.F 5.D
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