The fan is an electronic device that everybody uses it in their house. People use the fan to make the air in the room cooler, especially in hot day. And how does the fan work?

An electric fan is an electric motor with some fan blades attached to its rotating shaft. As the motor spins, the fan blades rotate. Each blade is angled a bit, and as the inclined plane of the blade moves through the air, it forces the air ahead of it forward. Each blade does this on a continuous basis, and the result is a moving air stream. The fan is taking air from the area behind itself and blowing it out the front.

The fan generates a movement of air, causing the warm dense air to descend, and the cool dense air to rise, thus creating a feeling of coolness in the air. The structure of text is……..

The fan is an electronic device that everybody uses it in their house. People use the fan to make the air in the room cooler, especially in hot day. And how does the fan work?

An electric fan is an electric motor with some fan blades attached to its rotating shaft. As the motor spins, the fan blades rotate. Each blade is angled a bit, and as the inclined plane of the blade moves through the air, it forces the air ahead of it forward. Each blade does this on a continuous basis, and the result is a moving air stream. The fan is taking air from the area behind itself and blowing it out the front.

The fan generates a movement of air, causing the warm dense air to descend, and the cool dense air to rise, thus creating a feeling of coolness in the air.

2.It forces the air ahead of it forward ( Paragraph 2 line 4).

It refers to....

Seasons come to us regularly. We have probably noticed that it gets warmer in summer or dry season while it get colder in the winter or wet season. However do we know how these seasons change?

Seasons happen and change every year. This happens because the earth tilts back and forth as it goes around the sun. During the summer, the earth tilts toward the sun. It makes half of the earth hotter. This condition is what we call summer. During the other half of the year, the earth tilts away from the sun. As a result, it makes that half of the earth cooler. This cool condition is then what we call winter.

The different parts of the world have the same season at different times. In the northern half of the world, winter happens during the months of December, January and February. The regions are such North America and Europe. In the other hand, the southern half of the worlds have winter during the months of June, July and August. The regions are like South America and Australia.

How does this difference happen? The same season happens at different times because the top and bottom halves of the earth tilt away from the sun at different times.

3.What is the text about?

Seasons come to us regularly. We have probably noticed that it gets warmer in summer or dry season while it get colder in the winter or wet season. However do we know how these seasons change?

Seasons happen and change every year. This happens because the earth tilts back and forth as it goes around the sun. During the summer, the earth tilts toward the sun. It makes half of the earth hotter. This condition is what we call summer. During the other half of the year, the earth tilts away from the sun. As a result, it makes that half of the earth cooler. This cool condition is then what we call winter.

The different parts of the world have the same season at different times. In the northern half of the world, winter happens during the months of December, January and February. The regions are such North America and Europe. In the other hand, the southern half of the worlds have winter during the months of June, July and August. The regions are like South America and Australia.

How does this difference happen? The same season happens at different times because the top and bottom halves of the earth tilt away from the sun at different times.

4.What is the purpose of the text?

Seasons come to us regularly. We have probably noticed that it gets warmer in summer or dry season while it get colder in the winter or wet season. However do we know how these seasons change?

Seasons happen and change every year. This happens because the earth tilts back and forth as it goes around the sun. During the summer, the earth tilts toward the sun. It makes half of the earth hotter. This condition is what we call summer. During the other half of the year, the earth tilts away from the sun. As a result, it makes that half of the earth cooler. This cool condition is then what we call winter.

The different parts of the world have the same season at different times. In the northern half of the world, winter happens during the months of December, January and February. The regions are such North America and Europe. In the other hand, the southern half of the worlds have winter during the months of June, July and August. The regions are like South America and Australia.

How does this difference happen? The same season happens at different times because the top and bottom halves of the earth tilt away from the sun at different times.

During the summer, the earth TILTS toward the sun (Paragraph 2 line 4). The underlined word has the same meaning with…….

Seasons come to us regularly. We have probably noticed that it gets warmer in summer or dry season while it get colder in the winter or wet season. However do we know how these seasons change?

Seasons happen and change every year. This happens because the earth tilts back and forth as it goes around the sun. During the summer, the earth tilts toward the sun. It makes half of the earth hotter. This condition is what we call summer. During the other half of the year, the earth tilts away from the sun. As a result, it makes that half of the earth cooler. This cool condition is then what we call winter.

The different parts of the world have the same season at different times. In the northern half of the world, winter happens during the months of December, January and February. The regions are such North America and Europe. In the other hand, the southern half of the worlds have winter during the months of June, July and August. The regions are like South America and Australia.

How does this difference happen? The same season happens at different times because the top and bottom halves of the earth tilt away from the sun at different times.

The lava oozes down the outside of the volcano, …. ( the last sentence ).

The word ‘oozes’ has the similar meaning with ….

Heat waves are a danger to human health – causing heat stroke, heat exhaustion, cramps, and other ailments. They also ______ ( 8) crops to fail and can help start wildfires in dry areas.

How does heat wave form? Sometimes, the jet stream, a flow of air through the mid-latitudes, can bring unusually warm air into _______ (9). If the warm air stays put for a while, it can cause a heat wave. The heat is able to persist if there aren’t rain and clouds to cool things off. The heat-trapping ability of cities, known as the urban

heat island effect, can make a heat wave _______ ( 10) and longer.

Heat waves are a danger to human health – causing heat stroke, heat exhaustion, cramps, and other ailments. They also ______ ( 8) crops to fail and can help start wildfires in dry areas.

How does heat wave form? Sometimes, the jet stream, a flow of air through the mid-latitudes, can bring unusually warm air into _______ (9). If the warm air stays put for a while, it can cause a heat wave. The heat is able to persist if there aren’t rain and clouds to cool things off. The heat-trapping ability of cities, known as the urban

heat island effect, can make a heat wave _______ (10) and longer.

Heat waves are a danger to human health – causing heat stroke, heat exhaustion, cramps, and other ailments. They also ______ (8) crops to fail and can help start wildfires in dry areas.

How does heat wave form? Sometimes, the jet stream, a flow of air through the mid-latitudes, can bring unusually warm air into _______ (9). If the warm air stays put for a while, it can cause a heat wave. The heat is able to persist if there aren’t rain and clouds to cool things off. The heat-trapping ability of cities, known as the urban

heat island effect, can make a heat wave _______ (10) and longer.