Hãy tham khảo Đề thi KSCĐ môn tiếng Anh lớp 11 năm 2017-2018 lần 3 - THTP Ngô Gia Tự - Mã đề 253 giúp các bạn học sinh có thêm nguồn tài liệu để tham khảo cũng như củng cố kiến thức trước khi bước vào kì thi. Chúc các bạn đạt kết quả cao trong kì thi! | We all want to live in a clean and green world and breathe pollution free air. For this kind of environment we desperately need a fossil fuel free world. Scientists are toiling hard to come up (27) alternative fuels which can replace conventional fuels. One such study was presented at the 237th National Meeting of the American Chemical Society. This study throws interesting light on the first economical, eco-friendly process to (28) algae oil into biodiesel fuel. The scientists are quite hopeful that one day America will become independent (29)_ fossil fuels. Ben Wen is the (30) researcher and vice president of United Environment and Energy LLC, Horseheads, . According to him, “This is the first economical way to produce biodiesel from algae oil. It costs much less than conventional processes because you would need a much smaller factory, there (31) no water disposal costs, and the process is considerably faster.”
