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Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

        Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers. Fossil fuels are expensive and limited sources of energy. Nuclear fission is used to create enormous amount of heat and electricity. However, nuclear fission forms dangerous radioactive waste.

          Sunlight offers many ways to get energy. A window can allow warm sunlight into your room. Solar water-heating systems can use sunlight to warm the water for your home, swimming pool and school. Sunlight also warms the Earth and causes wind. Electricity can be made by wind generators.

Photovoltaic, or PV system use a type of material that converts sunlight into electricity. PV systems can power your air conditioner or a satellite like the International Space Station. PV systems are also used to run a calculator, recharge cell phone, or even power lightweight cars.

          Sunlight is also changed into electricity by concentrating solar power or CSP systems. CSP systems have mirrors that focus the sunlight. The concentrated sunlight turns water into steam which turns a turbine that is connected to an electric generator. A CSP system usually uses sunlight to make steam. CSP power plants can store large amount of heat. The stored heat is used to make electricity at night. During cloud days, many CSP plants can also burn natural gas to provide the heat that is used to turn water into steam.

         Sunlight provides the energy needed to grow plants and make large amount of environmentally friendly heat and electricity. Solar energy can provide power today and for a long time in the future.

In the fourth paragraph, the word “which” refers to _______

A. water               

B. steam                

C. sunlight            

D. solar power

1
5 tháng 8 2017

Đáp án B

Trong đoạn 4, từ “which” nói đến ________

A. nước

B. hơi nước

C. ánh sáng mặt trời

D. năng lượng mặt trời

“The concentrated sunlight turns water into steam which turns a turbine that is connected to an electric generator.”

(Ánh sáng được tập trung chuyển nước từ dạng lỏng sang dạng hơi – làm xoay tuabin được nối với máy phát điện.)

Thứ làm xoay tuabin chính là hơi nước – steam.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.         Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers. Fossil fuels are expensive and limited sources of energy. Nuclear fission is used to create enormous amount of heat and electricity....
Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

        Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers. Fossil fuels are expensive and limited sources of energy. Nuclear fission is used to create enormous amount of heat and electricity. However, nuclear fission forms dangerous radioactive waste.

          Sunlight offers many ways to get energy. A window can allow warm sunlight into your room. Solar water-heating systems can use sunlight to warm the water for your home, swimming pool and school. Sunlight also warms the Earth and causes wind. Electricity can be made by wind generators.

Photovoltaic, or PV system use a type of material that converts sunlight into electricity. PV systems can power your air conditioner or a satellite like the International Space Station. PV systems are also used to run a calculator, recharge cell phone, or even power lightweight cars.

          Sunlight is also changed into electricity by concentrating solar power or CSP systems. CSP systems have mirrors that focus the sunlight. The concentrated sunlight turns water into steam which turns a turbine that is connected to an electric generator. A CSP system usually uses sunlight to make steam. CSP power plants can store large amount of heat. The stored heat is used to make electricity at night. During cloud days, many CSP plants can also burn natural gas to provide the heat that is used to turn water into steam.

         Sunlight provides the energy needed to grow plants and make large amount of environmentally friendly heat and electricity. Solar energy can provide power today and for a long time in the future.

The drawback of nuclear fission is that ________

A. it sends out energy in the form of rays that can be harmful.

B. it is costly.

C. it releases smoke.

D. it is time-consuming to be formed.

1
27 tháng 11 2018

Đáp án A

Hạn chế của hạt nhân nguyên tử là _______

A. nó truyền ra năng lượng dưới dạng các tia độc hại.

B. nó tốn kém.

C. nó thải ra khói.

D. nó mất nhiều thời gian để hình thành

Câu cuối đoạn 1: “However, nuclear fission forms dangerous radioactive waste.”

(Tuy nhiên, hạt nhân thải ra các tia phóng xạ độc hại.)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.         Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers. Fossil fuels are expensive and limited sources of energy. Nuclear fission is used to create enormous amount of heat and electricity....
Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

        Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers. Fossil fuels are expensive and limited sources of energy. Nuclear fission is used to create enormous amount of heat and electricity. However, nuclear fission forms dangerous radioactive waste.

          Sunlight offers many ways to get energy. A window can allow warm sunlight into your room. Solar water-heating systems can use sunlight to warm the water for your home, swimming pool and school. Sunlight also warms the Earth and causes wind. Electricity can be made by wind generators.

Photovoltaic, or PV system use a type of material that converts sunlight into electricity. PV systems can power your air conditioner or a satellite like the International Space Station. PV systems are also used to run a calculator, recharge cell phone, or even power lightweight cars.

          Sunlight is also changed into electricity by concentrating solar power or CSP systems. CSP systems have mirrors that focus the sunlight. The concentrated sunlight turns water into steam which turns a turbine that is connected to an electric generator. A CSP system usually uses sunlight to make steam. CSP power plants can store large amount of heat. The stored heat is used to make electricity at night. During cloud days, many CSP plants can also burn natural gas to provide the heat that is used to turn water into steam.

         Sunlight provides the energy needed to grow plants and make large amount of environmentally friendly heat and electricity. Solar energy can provide power today and for a long time in the future.

In the first paragraph, the word “fossil fuels” in line 2 means ________ 

A. fuels formed millions of years from the remains of animals and plants

B. nuclear energy 

C. solar powe

D. fuel formed from the energy of the wind

1
5 tháng 8 2019

Đáp án A

Trong đoạn đầu tiên, từ “fossil fuels” dòng 2 mang nghĩa ______

A. chất đốt được hình thành qua hàng triệu năm từ phần còn lại của động thực vật

B. năng lượng nguyên tử

C. năng lượng mặt trời

D. chất đốt có từ năng lượng gió

Fossil fuels (n): nhiên liệu hoá thạch = fuels formed millions of years from the remains of animals and plants

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.         Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers. Fossil fuels are expensive and limited sources of energy. Nuclear fission is used to create enormous amount of heat and electricity....
Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

        Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers. Fossil fuels are expensive and limited sources of energy. Nuclear fission is used to create enormous amount of heat and electricity. However, nuclear fission forms dangerous radioactive waste.

          Sunlight offers many ways to get energy. A window can allow warm sunlight into your room. Solar water-heating systems can use sunlight to warm the water for your home, swimming pool and school. Sunlight also warms the Earth and causes wind. Electricity can be made by wind generators.

Photovoltaic, or PV system use a type of material that converts sunlight into electricity. PV systems can power your air conditioner or a satellite like the International Space Station. PV systems are also used to run a calculator, recharge cell phone, or even power lightweight cars.

          Sunlight is also changed into electricity by concentrating solar power or CSP systems. CSP systems have mirrors that focus the sunlight. The concentrated sunlight turns water into steam which turns a turbine that is connected to an electric generator. A CSP system usually uses sunlight to make steam. CSP power plants can store large amount of heat. The stored heat is used to make electricity at night. During cloud days, many CSP plants can also burn natural gas to provide the heat that is used to turn water into steam.

         Sunlight provides the energy needed to grow plants and make large amount of environmentally friendly heat and electricity. Solar energy can provide power today and for a long time in the future.

To help the readers understand some of the benefits of solar energy, the author ________

A. provides a list of solar energy projects.

B. lists in chronological order the invention of various systems that gather the energy of sunlight

C. describes in detail how a PV system works.

D. briefly compares and contrasts the differences in using fossil fuels, nuclear fission and solar energy in electric power systems

1
28 tháng 9 2018

Đáp án D

Để giúp độc giả hiểu về ích lợi của năng lượng mặt trời, tác giả ______

A. liệt kê một loạt dự án quang năng.

B. liệt kê theo thứ tự ra đời của các hệ thống tập hợp năng lượng mặt trời.

C. mô tả chi tiết quy trình của hệ thống PV.

D. so sánh ngắn gọn và tương phản sự khác biệt trong việc dùng nhiên liệu hoá thạch, hạt nhân nguyên tử và năng lượng mặt trời trong hệ thống điện năng.

Trong đoạn 1, tác giả đưa ra sự so sánh và tương phản ngắn gọn về các dang năng lượng, nêu lên tác dụng và hạn chế của chúng, từ đó làm bật lên lợi ích của năng lượng mặt trờ

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.         Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers. Fossil fuels are expensive and limited sources of energy. Nuclear fission is used to create enormous amount of heat and electricity....
Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

        Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers. Fossil fuels are expensive and limited sources of energy. Nuclear fission is used to create enormous amount of heat and electricity. However, nuclear fission forms dangerous radioactive waste.

          Sunlight offers many ways to get energy. A window can allow warm sunlight into your room. Solar water-heating systems can use sunlight to warm the water for your home, swimming pool and school. Sunlight also warms the Earth and causes wind. Electricity can be made by wind generators.

Photovoltaic, or PV system use a type of material that converts sunlight into electricity. PV systems can power your air conditioner or a satellite like the International Space Station. PV systems are also used to run a calculator, recharge cell phone, or even power lightweight cars.

          Sunlight is also changed into electricity by concentrating solar power or CSP systems. CSP systems have mirrors that focus the sunlight. The concentrated sunlight turns water into steam which turns a turbine that is connected to an electric generator. A CSP system usually uses sunlight to make steam. CSP power plants can store large amount of heat. The stored heat is used to make electricity at night. During cloud days, many CSP plants can also burn natural gas to provide the heat that is used to turn water into steam.

         Sunlight provides the energy needed to grow plants and make large amount of environmentally friendly heat and electricity. Solar energy can provide power today and for a long time in the future.

Which of the following statements is NOT true?

A. Fossil fuel supplies are unlimited.

B. Solar energy is the energy that comes from the sun.

C. PV systems provide electricity for the International Space Station

D. A CSP power plant can produce steam even at night.

1
1 tháng 6 2017

Đáp án A

Phát biểu nào sau đây không đúng?

A. Nguồn nhiên liệu hoá thạch là vô hạn.

B. Quang năng là năng lượng từ mặt trời.

C. Hệ thống PV cung cấp nguồn điện cho Trạm vũ trụ quốc tế.

D. Cột năng lượng CSP có thể tạo hơi nước vào ban đêm.

Ta có: “Fossil fuels are expensive and limited sources of energy.” (Nhiên liệu hoá thạch đắt và có hạn.)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.         Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers. Fossil fuels are expensive and limited sources of energy. Nuclear fission is used to create enormous amount of heat and electricity....
Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

        Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers. Fossil fuels are expensive and limited sources of energy. Nuclear fission is used to create enormous amount of heat and electricity. However, nuclear fission forms dangerous radioactive waste.

          Sunlight offers many ways to get energy. A window can allow warm sunlight into your room. Solar water-heating systems can use sunlight to warm the water for your home, swimming pool and school. Sunlight also warms the Earth and causes wind. Electricity can be made by wind generators.

Photovoltaic, or PV system use a type of material that converts sunlight into electricity. PV systems can power your air conditioner or a satellite like the International Space Station. PV systems are also used to run a calculator, recharge cell phone, or even power lightweight cars.

          Sunlight is also changed into electricity by concentrating solar power or CSP systems. CSP systems have mirrors that focus the sunlight. The concentrated sunlight turns water into steam which turns a turbine that is connected to an electric generator. A CSP system usually uses sunlight to make steam. CSP power plants can store large amount of heat. The stored heat is used to make electricity at night. During cloud days, many CSP plants can also burn natural gas to provide the heat that is used to turn water into steam.

         Sunlight provides the energy needed to grow plants and make large amount of environmentally friendly heat and electricity. Solar energy can provide power today and for a long time in the future.

In the third paragraph, the word “convert” is closest in meaning to _______

A. change form one religion to another 

B. transform

C. exchange for something equal in value

D. converse

1
19 tháng 8 2018

Đáp án B

Trong đoạn 3, từ “convert” gần nghĩa nhất với________

A. thay đổi hình thức một tôn giáo

B. thay đổi, cải biến

C. đổi sang thứ gì đó có giá trị tương đương

D. nói chuyện (to) convert = (to) transform: thay đổi, biến đổi

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.         Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers. Fossil fuels are expensive and limited sources of energy. Nuclear fission is used to create enormous amount of heat and electricity....
Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

        Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers. Fossil fuels are expensive and limited sources of energy. Nuclear fission is used to create enormous amount of heat and electricity. However, nuclear fission forms dangerous radioactive waste.

          Sunlight offers many ways to get energy. A window can allow warm sunlight into your room. Solar water-heating systems can use sunlight to warm the water for your home, swimming pool and school. Sunlight also warms the Earth and causes wind. Electricity can be made by wind generators.

Photovoltaic, or PV system use a type of material that converts sunlight into electricity. PV systems can power your air conditioner or a satellite like the International Space Station. PV systems are also used to run a calculator, recharge cell phone, or even power lightweight cars.

          Sunlight is also changed into electricity by concentrating solar power or CSP systems. CSP systems have mirrors that focus the sunlight. The concentrated sunlight turns water into steam which turns a turbine that is connected to an electric generator. A CSP system usually uses sunlight to make steam. CSP power plants can store large amount of heat. The stored heat is used to make electricity at night. During cloud days, many CSP plants can also burn natural gas to provide the heat that is used to turn water into steam.

         Sunlight provides the energy needed to grow plants and make large amount of environmentally friendly heat and electricity. Solar energy can provide power today and for a long time in the future.

This article is mainly about _____

A. Human using sunlight to stay warm.

B. The need to develop new technology for solar power system.

C. How the energy of sunlight is used

D. How solar energy can provide power for transportation systems.

1
21 tháng 2 2018

Đáp án C

Bài viết chủ yếu nói về ________

A. Con người dùng ánh sáng để giữ nhiệt.

B. Sự cần thiết cho việc phát triển công nghệ mới trong hệ thống quang năng.

C. Năng lượng mặt trời đang được dùng ra sao.

D. Năng lượng mặt trời dùng trong hệ thống giao thông vận tải.

Ánh sáng mặt trời và cách nó được dùng là chủ đề chính trong bài. Ta có thể thấy rõ công dụng của quang năng qua mỗi đoạn.

Các đáp án còn lại sai vì:

A. chỉ mới đề cập được một phần nhỏ, không phải ý chính

B. bài viết giới thiệu về các hệ thống chuyển đổi quang năng, nhưng không có ý nói chúng lạc hậu và cần phát triển công nghệ mới.

D. giao thông vận tải không được nhắc đến trong bài.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 38 to 42   In this era of increased global warming and diminishing fossil fuel supplies, we must begin to put a greater priority on harnessing alternative energy sources. Fortunately, there are a number of readily available, renewable resources that are both cost- effective and earth - friendly. Two such resources are solar power and geothermal power....
Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 38 to 42

  In this era of increased global warming and diminishing fossil fuel supplies, we must begin to put a greater priority on harnessing alternative energy sources. Fortunately, there are a number of readily available, renewable resources that are both cost- effective and earth - friendly. Two such resources are solar power and geothermal power. Solar energy, which reaches the earth through sunlight, is so abundant that it could meet the needs of worldwide energy consumption 6,000 times over. And solar energy is easily harnessed through the use of photovoltaic cells that convert sunlight to electricity. In the US alone, more than 100, 000 homes are equipped with solar electric systems in the form of solar panels or solar roof tiles. And in other parts of the world, including many developing countries, the use of solar system is growing steadily.

  Another alternative energy source, which is abundant in specific geographical areas, is geothermal power, which creates energy by tapping heat from below the surface of the earth. Hot water and steam that are trapped in underground pools are pumped to the surface and used to run a generator, which is produces electricity. Geothermal energy is 50,000 times more abundant than the entire known supply of fossil fuel resources. And as with solar power, the technology needed to utilize geothermal energy is fairly simple. A prime example of effective geothermal use is in Iceland, a region of high geothermal activity where over 80 percent of private homes are heated by geothermal power. Solar and geothermal energy are just two of promising renewable alternatives to conventional energy sources. The time is long overdue to invest in the development and use of alternative energy on global scale.

What can be inferred about the use of geothermal energy in Iceland?

A. It is widely used form of energy for heating homes.

B. Twenty percent of the geothermal energy created is used to heat businesses. 

C. It is not effective for use in private homes. 

D. It is 80 times more effective than traditional forms of energy.

1
2 tháng 7 2018

Đáp án A.

Dịch nghĩa: Có thể suy ra điều gì về sự sử dụng năng lượng địa nhiệt ở Iceland?

A. Nó là dạng năng lượng được sử dụng rộng rãi để sưởi ấm nhà.

B. 20% năng lượng địa nhiệt được tạo ra để sưởi ấm doanh nghiệp.

C. Nó không hiệu quả cho sử dụng trong nhà riêng.

D. Nó hiệu quả gấp 80 lần so với các loại năng lượng truyền thống.

Dẫn chứng: “A prime example of effective geothermal use is in Iceland, a region of high geothermal activity where over 80 percent of private homes are heated by geothermal power”.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questionsIn this era of increased global warming and diminishing fossil fuel supplies, we must begin to put a greater priority on harnessing alternative energy sources. Fortunately, there are a number of readily available, renewable resources that are both cost- effective and earth – friendly. Two such resources are solar power and geothermal powerSolar energy, which...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions

In this era of increased global warming and diminishing fossil fuel supplies, we must begin to put a greater priority on harnessing alternative energy sources. Fortunately, there are a number of readily available, renewable resources that are both cost- effective and earth – friendly. Two such resources are solar power and geothermal power

Solar energy, which reaches the earth through sunlight, is so abundant that it could meet the needs of worldwide energy consumption 6,000 times over. And solar energy is easily harnessed through the use of photovoltaic cells that convert sunlight to electricity. In theUSalone, more than 100, 000 homes are equipped with solar electric systems in the form of solar panels or solar roof tiles. And in other parts of the world, including many developing countries, the use of solar system is growing steadily

Another alternative energy source, which is abundant in specific geographical areas, is geothermal power, which creates energy by tapping heat from below the surface of the earth. Hot water and steam that are trapped in underground pools are pumped to the surface and used to run a generator, which is produces electricity. Geothermal energy is 50, 000 times more abundant than the entire known supply of fossil fuel resources. And as with solar power, the technology needed to utilize geothermal energy is fairly simple. A prime example of effective geothermal use inIceland, a region of high geothermal activity where over 80 percent of private homes are heated by geothermal power.

Solar and geothermal energy are  just two of promising renewable alternatives to conventional energy sources. The time is long overdue to invest in the development and use of alternative energy on global scale

According to the passage, what can be inferred about solar roof tiles?

A. They are being used in many undeveloped countries

B. They can convert geothermal energy to electricity

C. They are more expensive than solar panels

D. They contain photovoltaic cells

1
18 tháng 6 2018

Đáp án : D

Từ dòng 2 đoạn 2: And solar energy is easily harnessed through the use of photovoltaic cells that convert sunlight to electricity. In the US alone, more than 100, 000 homes are equipped with solar electric systems in the form of solar panels or solar roof tiles -> năng lượng mặt trời được khai thác thông qua sự sử dụng “photovoltaic cells”; mà ở Mỹ, hệ thống năng lượng mặt trời lại dưới dạng “solar roof tiles” -> “solar roof tiles”chứa “photovoltaic cells”

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.         In this era of increased global warming and diminishing fossil fuel supplies, we must begin to put a greater priority on harnessing alternative energy sources. Fortunately, there are a number of readily available, renewable resources that are both cost- effective and earth - friendly. Two such resources are solar power and geothermal power.        ...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

        In this era of increased global warming and diminishing fossil fuel supplies, we must begin to put a greater priority on harnessing alternative energy sources. Fortunately, there are a number of readily available, renewable resources that are both cost- effective and earth - friendly. Two such resources are solar power and geothermal power.

        Solar energy, which reaches the earth through sunlight, is so abundant that it could meet the needs of worldwide energy consumption 6,000 times over. And solar energy is easily harnessed through the use of photovoltaic cells that convert sunlight to electricity. In the US alone, more than 100, 000 homes are equipped with solar electric systems in the form of solar panels or solar roof tiles. And in other parts of the world, including many developing countries, the use of solar system is growing steadily.

       Another alternative energy source, which is abundant in specific geographical areas, is geothermal power, which creates energy by tapping heat from below the surface of the earth. Hot water and steam that are trapped in underground pools are pumped to the surface and used to run a generator, which produces electricity. Geothermal energy is 50,000 times more abundant than the entire known supply of fossil fuel resources and as with solar power, the technology needed to utilize geothermal energy is fairly simple. A prime example of effective geothermal use in Iceland, a region of high geothermal activity where there are over 80 percent of private homes, are heated by geothermal power.

       Solar and geothermal energy are just two of promising renewable alternatives to conventional energy sources. The time is long overdue to invest in the development and use of alternative energy on global scale.

According to the passage, what can be inferred about solar roof tiles?

A. They are being used in many undeveloped countries.

B. They can convert geothermal energy to electricity.

C. They are more expensive than solar panels.

D. They contain photovoltaic cells.

1
1 tháng 11 2017

Đáp án D.

Key words: inferred about solar roof tiles

Clue: And solar energy is easily harnessed through the use of photovoltaic cells that convert sunlight to electricity. In the US alone, more than 100, 000 homes are equipped with solar electric systems in the form of solar panels or solar roof tiles: Và năng lượng mặt trời rất d dàng khai thác bằng việc sử dụng pin quang điện có thể biến ánh sáng mặt trời thành dòng điện. Riêng ở Hoa Kỳ, hơn 100 000 ngôi nhà được trang bị hệ thống điện năng lượng mặt trời dưới dạng tấm pin mặt trời hoặc ngói năng lượng mặt trời.

A. They are being used in many undeveloped countries: Chúng được sử dụng ở rất nhiều nước chưa phát triển

B. They can convert geothermal energy to electricity: Chúng có thế biến năng lượng địa nhiệt thành dòng điện.

C. They are more expensive than solar panels: Chúng đắt hơn nhiều so với bảng năng lượng mặt trời

D. They contain photovoltaic cells: Chúng chứa pin quang điện.

Đáp án A sai vì ở dòng 9 có câu: And in other parts of the world, including many developing countries, the use of solar system is growing steadily.

Đáp án B sai (Tham khảo clue ở trên)

Đáp án C sai vì không có thông tin trong bài

Đáp án chính xác là D.