Question

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.

Answer 1

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 dễ 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.