In the future, maybe all cars that run on petrol will be replaced by solar cars, which have been around for a while, but with recent (1)__________ in solar car design and the measurement of photovoltaic cells becoming smaller, the dream of a truly efficient solar car is more reality than fantasy. A solar oto is a vehicle (2)__________ by photovoltaic cells, also called solar cells, which convert sunlight (light energy) into electrical energy. As a source of energy on earth, there is nothing like the sun: in a mere one thousandth of one second (.001), the sun emits enough energy khổng lồ fulfill our planet"s (3)_______ needs for the next 5,000 years. It is a staggering fact, và an exciting one. Since the energy from the sun is responsible for renewable resources such as wind, tides, and heat, solar energy seems khổng lồ offer the brightest future for not only cars, but for the entire energy crisis. Despite the appearance that solar energy may be the least feasible among the current crop of (4)_________ fuel propositions, new solar powered devices & more specifically solar powered cars are beginning to lớn be developed. How bởi vì solar cars work?The photo-voltaic cells absorb photons from sunlight. This action generates heat, which the cells then convert into electrical energy and stores in an on-board battery. This process of conversion is called the photovoltaic effect. Not surprisingly, such a vehicle has zero emissions, & is very (5)________ friendly. Unfortunately, at the moment photovoltaic cells are extremely inefficient, yet as time progresses the efficiency of these cells will grow. This will make solar energy và solar cars the fuel và car of the future-a closer reality.


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D. environment

Đáp án A

kiến thức và kỹ năng về trường đoản cú loại
A. Environmentally/ɪnˌvaɪrənˈmentəli/(adv): về phương diện môi trườngB. Environmental/ɪnˌvaɪrənˈmentəl/(a): ở trong về môi trườngC. Environmentalist/ɪnˌvaɪrənˈmentəlɪst/(n): nhà môi trường thiên nhiên họcD. Environment/ɪnˈvaɪrənmənt/(n): môi trường, môi sinhTrong câu: “Not surprisingly, such a vehicle has zero emissions, & is very (5)________ friendly.” (Không ngạc nhiên, khi một chiếc xe cộ như vậy tất cả lượng khí thải bởi không, và rất thân thiện với môi trường.), trường đoản cú “friendly” là tính từ. Ta buộc phải một trạng trường đoản cú đứng trước tính từ, xẻ nghĩa mang đến tính từ. -> phương pháp đúng là: A


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