Almost all energy on the earth comes from the sun. Heat from the sun makes the earth warm enough for life. Plants use the sun’s energy to live and grow. Plants
Almost all energy on the earth comes from the sun. Heat from the sun makes the earth warm enough for life. Plants use the sun’s energy to live and grow. Plants give off a gas called oxygen. Animals eat the plants and breathe the oxygen. Animals need plants in order to live, and plants need the sun. You use plants to make heat and energy. You can burn wood from trees. You can burn fossil fuels called coal, gas, and oil. Fossil fuels formed deep underground from plants and animals that died millions of years ago. The sun’s energy can also do harm. Too much sunlight can burn your skin, causing sunburn. Harmful rays from the sun can also cause a disease called skin cancer. Looking right at the sun can harm your eyes. You need to be careful of the sun. The center of the sun is called the core, which is extremely hot. All energy of the sun comes from the nuclear reactions in its core. It takes a long time for the energy from the core to reach the surface of the sun – about 170,000 years. 1.Why is the sun vital? ....................................................................................................................................................................... 2. How do we make heat and energy from plants? ..................................................................................................................................................................... 3. How did fossil fuels form? ………………………………………………………………………………………………………………. 4. How many physical disadvantages does the sun bring on people? What are they? ……………………………………………………………………………………………………………….. 5. Why aren’t people burned with heat from the sun’s core? ……………………………………………………………………………………………………………
Lời giải 1 :
`1.` Because plants, animals and people need to energy from the sun.
`→` Dựa vào đoạn 1 của bài
`2.` We burn wood from trees and fossil fuels called coal, gas, and oil.
`→` Dựa vào câu : You can burn fossil fuels called coal, gas, and oil.
`3.` Fossil fuels formed deep underground from plants and animals that died millions of years ago.
`→` Dựa vào câu cuối đoạn 1
`4.` There are three physical disadvantages does the sun bring on people. They are sunburn, skin cancer and harm the eyes
`→` Dựa vào câu 2 và 3 đoạn 2
`5.` Because it takes a long time for the energy from the core to reach the surface of the sun – about 170,000 years.
`→` Dựa vào câu cuối của bài
Thảo luận
Lời giải 2 :
1. The sun is vital because plants, animals and people need energy from the sun (dẫn chứng: Heat from the sun makes the earth warm enough for life. Plants use the sun’s energy to live and grow. Animals need plants in order to live, and plants need the sun.)
2. We burn wood from trees and fossil fuels called coal, gas, and oil. (dẫn chứng: You use plants to make heat and energy. You can burn wood from trees. You can burn fossil fuels called coal, gas, and oil.)
3. Fossil fuels formed deep underground from plants and animals that died millions of years ago. (dẫn chứng: Fossil fuels formed deep underground from plants and animals that died millions of years ago.)
4. There are three. They are sunburn, skin cancer and harm the eyes (dẫn chứng: The sun’s energy can also do harm. Too much sunlight can burn your skin, causing sunburn. Harmful rays from the sun can also cause a disease called skin cancer. Looking right at the sun can harm your eyes.)
5. Because it takes a long time for the energy from the core to reach the surface of the sun – about 170,000 years. (dẫn chứng: It takes a long time for the energy from the core to reach the surface of the sun – about 170,000 years)
Cho tớ 5 so nhé ;)
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